feat: addressed comments and feedback

* chore: replace prop drilling with fetch store

* chore: variables based panel fetching

* chore: add tests

* chore: move tests

* chore: add tests for new hook

* chore: resolve comments

.github/CODEOWNERS

@@ -43,6 +43,12 @@
 /pkg/analytics/ @vikrantgupta25
 /pkg/statsreporter/ @vikrantgupta25
 
+# Emailing Owners
+
+/pkg/emailing/ @vikrantgupta25
+/pkg/types/emailtypes/ @vikrantgupta25
+/templates/email/ @vikrantgupta25
+
 # Querier Owners
 
 /pkg/querier/ @srikanthccv

.vscode/settings.json

@@ -14,5 +14,8 @@
 	},
 	"[sql]": {
 		"editor.defaultFormatter": "adpyke.vscode-sql-formatter"
+	},
+	"[html]": {
+		"editor.defaultFormatter": "vscode.html-language-features"
 	}
 }

conf/example.yaml

@@ -193,6 +193,15 @@ emailing:
   templates:
     # The directory containing the email templates. This directory should contain a list of files defined at pkg/types/emailtypes/template.go.
     directory: /opt/signoz/conf/templates/email
+    format:
+      header:
+        enabled: false
+        logo_url: ""
+      help:
+        enabled: false
+        email: ""
+      footer:
+        enabled: false
   smtp:
     # The SMTP server address.
     address: localhost:25

ee/query-service/app/api/api.go

@@ -1,7 +1,6 @@
 package api
 
 import (
-	"log/slog"
 	"net/http"
 	"net/http/httputil"
 	"time"
@@ -14,6 +13,7 @@ import (
 	"github.com/SigNoz/signoz/pkg/http/middleware"
 	querierAPI "github.com/SigNoz/signoz/pkg/querier"
 	baseapp "github.com/SigNoz/signoz/pkg/query-service/app"
+	"github.com/SigNoz/signoz/pkg/query-service/app/cloudintegrations"
 	"github.com/SigNoz/signoz/pkg/query-service/app/integrations"
 	"github.com/SigNoz/signoz/pkg/query-service/app/logparsingpipeline"
 	"github.com/SigNoz/signoz/pkg/query-service/interfaces"
@@ -30,13 +30,13 @@ type APIHandlerOptions struct {
 	RulesManager                  *rules.Manager
 	UsageManager                  *usage.Manager
 	IntegrationsController        *integrations.Controller
+	CloudIntegrationsController   *cloudintegrations.Controller
 	LogsParsingPipelineController *logparsingpipeline.LogParsingPipelineController
 	Gateway                       *httputil.ReverseProxy
 	GatewayUrl                    string
 	// Querier Influx Interval
 	FluxInterval time.Duration
 	GlobalConfig global.Config
-	Logger       *slog.Logger // this is present in Signoz.Instrumentation but adding for quick access
 }
 
 type APIHandler struct {
@@ -50,6 +50,7 @@ func NewAPIHandler(opts APIHandlerOptions, signoz *signoz.SigNoz) (*APIHandler,
 		Reader:                        opts.DataConnector,
 		RuleManager:                   opts.RulesManager,
 		IntegrationsController:        opts.IntegrationsController,
+		CloudIntegrationsController:   opts.CloudIntegrationsController,
 		LogsParsingPipelineController: opts.LogsParsingPipelineController,
 		FluxInterval:                  opts.FluxInterval,
 		AlertmanagerAPI:               alertmanager.NewAPI(signoz.Alertmanager),
@@ -57,7 +58,6 @@ func NewAPIHandler(opts APIHandlerOptions, signoz *signoz.SigNoz) (*APIHandler,
 		Signoz:                        signoz,
 		QuerierAPI:                    querierAPI.NewAPI(signoz.Instrumentation.ToProviderSettings(), signoz.Querier, signoz.Analytics),
 		QueryParserAPI:                queryparser.NewAPI(signoz.Instrumentation.ToProviderSettings(), signoz.QueryParser),
-		Logger:                        opts.Logger,
 	})
 
 	if err != nil {
@@ -118,12 +118,14 @@ func (ah *APIHandler) RegisterRoutes(router *mux.Router, am *middleware.AuthZ) {
 }
 
 func (ah *APIHandler) RegisterCloudIntegrationsRoutes(router *mux.Router, am *middleware.AuthZ) {
+
 	ah.APIHandler.RegisterCloudIntegrationsRoutes(router, am)
 
 	router.HandleFunc(
 		"/api/v1/cloud-integrations/{cloudProvider}/accounts/generate-connection-params",
 		am.EditAccess(ah.CloudIntegrationsGenerateConnectionParams),
 	).Methods(http.MethodGet)
+
 }
 
 func (ah *APIHandler) getVersion(w http.ResponseWriter, r *http.Request) {

ee/query-service/app/api/cloudIntegrations.go

@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"log/slog"
 	"net/http"
 	"strings"
 	"time"
@@ -14,14 +13,20 @@ import (
 	"github.com/SigNoz/signoz/pkg/errors"
 	"github.com/SigNoz/signoz/pkg/http/render"
 	"github.com/SigNoz/signoz/pkg/modules/user"
+	basemodel "github.com/SigNoz/signoz/pkg/query-service/model"
 	"github.com/SigNoz/signoz/pkg/types"
 	"github.com/SigNoz/signoz/pkg/types/authtypes"
-	"github.com/SigNoz/signoz/pkg/types/integrationstypes"
 	"github.com/SigNoz/signoz/pkg/valuer"
 	"github.com/gorilla/mux"
+	"go.uber.org/zap"
 )
 
-// TODO: move this file with other cloud integration related code
+type CloudIntegrationConnectionParamsResponse struct {
+	IngestionUrl string `json:"ingestion_url,omitempty"`
+	IngestionKey string `json:"ingestion_key,omitempty"`
+	SigNozAPIUrl string `json:"signoz_api_url,omitempty"`
+	SigNozAPIKey string `json:"signoz_api_key,omitempty"`
+}
 
 func (ah *APIHandler) CloudIntegrationsGenerateConnectionParams(w http.ResponseWriter, r *http.Request) {
 	claims, err := authtypes.ClaimsFromContext(r.Context())
@@ -36,21 +41,23 @@ func (ah *APIHandler) CloudIntegrationsGenerateConnectionParams(w http.ResponseW
 		return
 	}
 
-	cloudProviderString := mux.Vars(r)["cloudProvider"]
-
-	cloudProvider, err := integrationstypes.NewCloudProvider(cloudProviderString)
-	if err != nil {
-		render.Error(w, err)
+	cloudProvider := mux.Vars(r)["cloudProvider"]
+	if cloudProvider != "aws" {
+		RespondError(w, basemodel.BadRequest(fmt.Errorf(
+			"cloud provider not supported: %s", cloudProvider,
+		)), nil)
 		return
 	}
 
-	apiKey, err := ah.getOrCreateCloudIntegrationPAT(r.Context(), claims.OrgID, cloudProvider)
-	if err != nil {
-		render.Error(w, err)
+	apiKey, apiErr := ah.getOrCreateCloudIntegrationPAT(r.Context(), claims.OrgID, cloudProvider)
+	if apiErr != nil {
+		RespondError(w, basemodel.WrapApiError(
+			apiErr, "couldn't provision PAT for cloud integration:",
+		), nil)
 		return
 	}
 
-	result := integrationstypes.GettableCloudIntegrationConnectionParams{
+	result := CloudIntegrationConnectionParamsResponse{
 		SigNozAPIKey: apiKey,
 	}
 
@@ -64,17 +71,16 @@ func (ah *APIHandler) CloudIntegrationsGenerateConnectionParams(w http.ResponseW
 		// Return the API Key (PAT) even if the rest of the params can not be deduced.
 		// Params not returned from here will be requested from the user via form inputs.
 		// This enables gracefully degraded but working experience even for non-cloud deployments.
-		ah.opts.Logger.InfoContext(
-			r.Context(),
-			"ingestion params and signoz api url can not be deduced since no license was found",
-		)
-		render.Success(w, http.StatusOK, result)
+		zap.L().Info("ingestion params and signoz api url can not be deduced since no license was found")
+		ah.Respond(w, result)
 		return
 	}
 
-	signozApiUrl, err := ah.getIngestionUrlAndSigNozAPIUrl(r.Context(), license.Key)
-	if err != nil {
-		render.Error(w, err)
+	signozApiUrl, apiErr := ah.getIngestionUrlAndSigNozAPIUrl(r.Context(), license.Key)
+	if apiErr != nil {
+		RespondError(w, basemodel.WrapApiError(
+			apiErr, "couldn't deduce ingestion url and signoz api url",
+		), nil)
 		return
 	}
 
@@ -83,41 +89,48 @@ func (ah *APIHandler) CloudIntegrationsGenerateConnectionParams(w http.ResponseW
 
 	gatewayUrl := ah.opts.GatewayUrl
 	if len(gatewayUrl) > 0 {
-		ingestionKeyString, err := ah.getOrCreateCloudProviderIngestionKey(
+
+		ingestionKey, apiErr := getOrCreateCloudProviderIngestionKey(
 			r.Context(), gatewayUrl, license.Key, cloudProvider,
 		)
-		if err != nil {
-			render.Error(w, err)
+		if apiErr != nil {
+			RespondError(w, basemodel.WrapApiError(
+				apiErr, "couldn't get or create ingestion key",
+			), nil)
 			return
 		}
 
-		result.IngestionKey = ingestionKeyString
+		result.IngestionKey = ingestionKey
+
 	} else {
-		ah.opts.Logger.InfoContext(
-			r.Context(),
-			"ingestion key can't be deduced since no gateway url has been configured",
-		)
+		zap.L().Info("ingestion key can't be deduced since no gateway url has been configured")
 	}
 
-	render.Success(w, http.StatusOK, result)
+	ah.Respond(w, result)
 }
 
-func (ah *APIHandler) getOrCreateCloudIntegrationPAT(ctx context.Context, orgId string, cloudProvider valuer.String) (string, error) {
+func (ah *APIHandler) getOrCreateCloudIntegrationPAT(ctx context.Context, orgId string, cloudProvider string) (
+	string, *basemodel.ApiError,
+) {
 	integrationPATName := fmt.Sprintf("%s integration", cloudProvider)
 
-	integrationUser, err := ah.getOrCreateCloudIntegrationUser(ctx, orgId, cloudProvider)
-	if err != nil {
-		return "", err
+	integrationUser, apiErr := ah.getOrCreateCloudIntegrationUser(ctx, orgId, cloudProvider)
+	if apiErr != nil {
+		return "", apiErr
 	}
 
 	orgIdUUID, err := valuer.NewUUID(orgId)
 	if err != nil {
-		return "", err
+		return "", basemodel.InternalError(fmt.Errorf(
+			"couldn't parse orgId: %w", err,
+		))
 	}
 
 	allPats, err := ah.Signoz.Modules.User.ListAPIKeys(ctx, orgIdUUID)
 	if err != nil {
-		return "", err
+		return "", basemodel.InternalError(fmt.Errorf(
+			"couldn't list PATs: %w", err,
+		))
 	}
 	for _, p := range allPats {
 		if p.UserID == integrationUser.ID && p.Name == integrationPATName {
@@ -125,10 +138,9 @@ func (ah *APIHandler) getOrCreateCloudIntegrationPAT(ctx context.Context, orgId
 		}
 	}
 
-	ah.opts.Logger.InfoContext(
-		ctx,
+	zap.L().Info(
 		"no PAT found for cloud integration, creating a new one",
-		slog.String("cloudProvider", cloudProvider.String()),
+		zap.String("cloudProvider", cloudProvider),
 	)
 
 	newPAT, err := types.NewStorableAPIKey(
@@ -138,48 +150,68 @@ func (ah *APIHandler) getOrCreateCloudIntegrationPAT(ctx context.Context, orgId
 		0,
 	)
 	if err != nil {
-		return "", err
+		return "", basemodel.InternalError(fmt.Errorf(
+			"couldn't create cloud integration PAT: %w", err,
+		))
 	}
 
 	err = ah.Signoz.Modules.User.CreateAPIKey(ctx, newPAT)
 	if err != nil {
-		return "", err
+		return "", basemodel.InternalError(fmt.Errorf(
+			"couldn't create cloud integration PAT: %w", err,
+		))
 	}
 	return newPAT.Token, nil
 }
 
-// TODO: move this function out of handler and use proper module structure
-func (ah *APIHandler) getOrCreateCloudIntegrationUser(ctx context.Context, orgId string, cloudProvider valuer.String) (*types.User, error) {
-	cloudIntegrationUserName := fmt.Sprintf("%s-integration", cloudProvider.String())
+func (ah *APIHandler) getOrCreateCloudIntegrationUser(
+	ctx context.Context, orgId string, cloudProvider string,
+) (*types.User, *basemodel.ApiError) {
+	cloudIntegrationUserName := fmt.Sprintf("%s-integration", cloudProvider)
 	email := valuer.MustNewEmail(fmt.Sprintf("%s@signoz.io", cloudIntegrationUserName))
 
 	cloudIntegrationUser, err := types.NewUser(cloudIntegrationUserName, email, types.RoleViewer, valuer.MustNewUUID(orgId))
 	if err != nil {
-		return nil, err
+		return nil, basemodel.InternalError(fmt.Errorf("couldn't create cloud integration user: %w", err))
 	}
 
 	password := types.MustGenerateFactorPassword(cloudIntegrationUser.ID.StringValue())
 
 	cloudIntegrationUser, err = ah.Signoz.Modules.User.GetOrCreateUser(ctx, cloudIntegrationUser, user.WithFactorPassword(password))
 	if err != nil {
-		return nil, err
+		return nil, basemodel.InternalError(fmt.Errorf("couldn't look for integration user: %w", err))
 	}
 
 	return cloudIntegrationUser, nil
 }
 
-// TODO: move this function out of handler and use proper module structure
-func (ah *APIHandler) getIngestionUrlAndSigNozAPIUrl(ctx context.Context, licenseKey string) (string, error) {
-	respBytes, err := ah.Signoz.Zeus.GetDeployment(ctx, licenseKey)
-	if err != nil {
-		return "", errors.WrapInternalf(err, errors.CodeInternal, "couldn't query for deployment info: error")
+func (ah *APIHandler) getIngestionUrlAndSigNozAPIUrl(ctx context.Context, licenseKey string) (
+	string, *basemodel.ApiError,
+) {
+	// TODO: remove this struct from here
+	type deploymentResponse struct {
+		Name        string `json:"name"`
+		ClusterInfo struct {
+			Region struct {
+				DNS string `json:"dns"`
+			} `json:"region"`
+		} `json:"cluster"`
 	}
 
-	resp := new(integrationstypes.GettableDeployment)
+	respBytes, err := ah.Signoz.Zeus.GetDeployment(ctx, licenseKey)
+	if err != nil {
+		return "", basemodel.InternalError(fmt.Errorf(
+			"couldn't query for deployment info: error: %w", err,
+		))
+	}
+
+	resp := new(deploymentResponse)
 
 	err = json.Unmarshal(respBytes, resp)
 	if err != nil {
-		return "", errors.WrapInternalf(err, errors.CodeInternal, "couldn't unmarshal deployment info response")
+		return "", basemodel.InternalError(fmt.Errorf(
+			"couldn't unmarshal deployment info response: error: %w", err,
+		))
 	}
 
 	regionDns := resp.ClusterInfo.Region.DNS
@@ -187,11 +219,9 @@ func (ah *APIHandler) getIngestionUrlAndSigNozAPIUrl(ctx context.Context, licens
 
 	if len(regionDns) < 1 || len(deploymentName) < 1 {
 		// Fail early if actual response structure and expectation here ever diverge
-		return "", errors.WrapInternalf(
-			err,
-			errors.CodeInternal,
+		return "", basemodel.InternalError(fmt.Errorf(
 			"deployment info response not in expected shape. couldn't determine region dns and deployment name",
-		)
+		))
 	}
 
 	signozApiUrl := fmt.Sprintf("https://%s.%s", deploymentName, regionDns)
@@ -199,85 +229,102 @@ func (ah *APIHandler) getIngestionUrlAndSigNozAPIUrl(ctx context.Context, licens
 	return signozApiUrl, nil
 }
 
-func (ah *APIHandler) getOrCreateCloudProviderIngestionKey(
-	ctx context.Context, gatewayUrl string, licenseKey string, cloudProvider valuer.String,
-) (string, error) {
+type ingestionKey struct {
+	Name  string `json:"name"`
+	Value string `json:"value"`
+	// other attributes from gateway response not included here since they are not being used.
+}
+
+type ingestionKeysSearchResponse struct {
+	Status string         `json:"status"`
+	Data   []ingestionKey `json:"data"`
+	Error  string         `json:"error"`
+}
+
+type createIngestionKeyResponse struct {
+	Status string       `json:"status"`
+	Data   ingestionKey `json:"data"`
+	Error  string       `json:"error"`
+}
+
+func getOrCreateCloudProviderIngestionKey(
+	ctx context.Context, gatewayUrl string, licenseKey string, cloudProvider string,
+) (string, *basemodel.ApiError) {
 	cloudProviderKeyName := fmt.Sprintf("%s-integration", cloudProvider)
 
 	// see if the key already exists
-	searchResult, err := requestGateway[integrationstypes.GettableIngestionKeysSearch](
+	searchResult, apiErr := requestGateway[ingestionKeysSearchResponse](
 		ctx,
 		gatewayUrl,
 		licenseKey,
 		fmt.Sprintf("/v1/workspaces/me/keys/search?name=%s", cloudProviderKeyName),
 		nil,
-		ah.opts.Logger,
 	)
-	if err != nil {
-		return "", err
+
+	if apiErr != nil {
+		return "", basemodel.WrapApiError(
+			apiErr, "couldn't search for cloudprovider ingestion key",
+		)
 	}
 
 	if searchResult.Status != "success" {
-		return "", errors.NewInternalf(
-			errors.CodeInternal,
-			"couldn't search for cloud provider ingestion key: status: %s, error: %s",
+		return "", basemodel.InternalError(fmt.Errorf(
+			"couldn't search for cloudprovider ingestion key: status: %s, error: %s",
 			searchResult.Status, searchResult.Error,
-		)
+		))
 	}
 
 	for _, k := range searchResult.Data {
-		if k.Name != cloudProviderKeyName {
-			continue
-		}
+		if k.Name == cloudProviderKeyName {
+			if len(k.Value) < 1 {
+				// Fail early if actual response structure and expectation here ever diverge
+				return "", basemodel.InternalError(fmt.Errorf(
+					"ingestion keys search response not as expected",
+				))
+			}
 
-		if len(k.Value) < 1 {
-			// Fail early if actual response structure and expectation here ever diverge
-			return "", errors.NewInternalf(errors.CodeInternal, "ingestion keys search response not as expected")
+			return k.Value, nil
 		}
-
-		return k.Value, nil
 	}
 
-	ah.opts.Logger.InfoContext(
-		ctx,
+	zap.L().Info(
 		"no existing ingestion key found for cloud integration, creating a new one",
-		slog.String("cloudProvider", cloudProvider.String()),
+		zap.String("cloudProvider", cloudProvider),
 	)
-
-	createKeyResult, err := requestGateway[integrationstypes.GettableCreateIngestionKey](
+	createKeyResult, apiErr := requestGateway[createIngestionKeyResponse](
 		ctx, gatewayUrl, licenseKey, "/v1/workspaces/me/keys",
 		map[string]any{
 			"name": cloudProviderKeyName,
-			"tags": []string{"integration", cloudProvider.String()},
+			"tags": []string{"integration", cloudProvider},
 		},
-		ah.opts.Logger,
 	)
-	if err != nil {
-		return "", err
+	if apiErr != nil {
+		return "", basemodel.WrapApiError(
+			apiErr, "couldn't create cloudprovider ingestion key",
+		)
 	}
 
 	if createKeyResult.Status != "success" {
-		return "", errors.NewInternalf(
-			errors.CodeInternal,
-			"couldn't create cloud provider ingestion key: status: %s, error: %s",
+		return "", basemodel.InternalError(fmt.Errorf(
+			"couldn't create cloudprovider ingestion key: status: %s, error: %s",
 			createKeyResult.Status, createKeyResult.Error,
-		)
+		))
 	}
 
-	ingestionKeyString := createKeyResult.Data.Value
-	if len(ingestionKeyString) < 1 {
+	ingestionKey := createKeyResult.Data.Value
+	if len(ingestionKey) < 1 {
 		// Fail early if actual response structure and expectation here ever diverge
-		return "", errors.NewInternalf(errors.CodeInternal,
+		return "", basemodel.InternalError(fmt.Errorf(
 			"ingestion key creation response not as expected",
-		)
+		))
 	}
 
-	return ingestionKeyString, nil
+	return ingestionKey, nil
 }
 
 func requestGateway[ResponseType any](
-	ctx context.Context, gatewayUrl, licenseKey, path string, payload any, logger *slog.Logger,
-) (*ResponseType, error) {
+	ctx context.Context, gatewayUrl string, licenseKey string, path string, payload any,
+) (*ResponseType, *basemodel.ApiError) {
 
 	baseUrl := strings.TrimSuffix(gatewayUrl, "/")
 	reqUrl := fmt.Sprintf("%s%s", baseUrl, path)
@@ -288,12 +335,13 @@ func requestGateway[ResponseType any](
 		"X-Consumer-Groups":      "ns:default",
 	}
 
-	return requestAndParseResponse[ResponseType](ctx, reqUrl, headers, payload, logger)
+	return requestAndParseResponse[ResponseType](ctx, reqUrl, headers, payload)
 }
 
 func requestAndParseResponse[ResponseType any](
-	ctx context.Context, url string, headers map[string]string, payload any, logger *slog.Logger,
-) (*ResponseType, error) {
+	ctx context.Context, url string, headers map[string]string, payload any,
+) (*ResponseType, *basemodel.ApiError) {
+
 	reqMethod := http.MethodGet
 	var reqBody io.Reader
 	if payload != nil {
@@ -301,14 +349,18 @@ func requestAndParseResponse[ResponseType any](
 
 		bodyJson, err := json.Marshal(payload)
 		if err != nil {
-			return nil, errors.WrapInternalf(err, errors.CodeInternal, "couldn't marshal payload")
+			return nil, basemodel.InternalError(fmt.Errorf(
+				"couldn't serialize request payload to JSON: %w", err,
+			))
 		}
-		reqBody = bytes.NewBuffer(bodyJson)
+		reqBody = bytes.NewBuffer([]byte(bodyJson))
 	}
 
 	req, err := http.NewRequestWithContext(ctx, reqMethod, url, reqBody)
 	if err != nil {
-		return nil, errors.WrapInternalf(err, errors.CodeInternal, "couldn't create req")
+		return nil, basemodel.InternalError(fmt.Errorf(
+			"couldn't prepare request: %w", err,
+		))
 	}
 
 	for k, v := range headers {
@@ -321,26 +373,23 @@ func requestAndParseResponse[ResponseType any](
 
 	response, err := client.Do(req)
 	if err != nil {
-		return nil, errors.WrapInternalf(err, errors.CodeInternal, "couldn't make req")
+		return nil, basemodel.InternalError(fmt.Errorf("couldn't make request: %w", err))
 	}
 
-	defer func() {
-		err = response.Body.Close()
-		if err != nil {
-			logger.ErrorContext(ctx, "couldn't close response body", "error", err)
-		}
-	}()
+	defer response.Body.Close()
 
 	respBody, err := io.ReadAll(response.Body)
 	if err != nil {
-		return nil, errors.WrapInternalf(err, errors.CodeInternal, "couldn't read response body")
+		return nil, basemodel.InternalError(fmt.Errorf("couldn't read response: %w", err))
 	}
 
 	var resp ResponseType
 
 	err = json.Unmarshal(respBody, &resp)
 	if err != nil {
-		return nil, errors.WrapInternalf(err, errors.CodeInternal, "couldn't unmarshal response body")
+		return nil, basemodel.InternalError(fmt.Errorf(
+			"couldn't unmarshal gateway response into %T", resp,
+		))
 	}
 
 	return &resp, nil

ee/query-service/app/server.go

@@ -38,6 +38,7 @@ import (
 	"github.com/SigNoz/signoz/pkg/query-service/agentConf"
 	baseapp "github.com/SigNoz/signoz/pkg/query-service/app"
 	"github.com/SigNoz/signoz/pkg/query-service/app/clickhouseReader"
+	"github.com/SigNoz/signoz/pkg/query-service/app/cloudintegrations"
 	"github.com/SigNoz/signoz/pkg/query-service/app/integrations"
 	"github.com/SigNoz/signoz/pkg/query-service/app/logparsingpipeline"
 	"github.com/SigNoz/signoz/pkg/query-service/app/opamp"
@@ -126,6 +127,13 @@ func NewServer(config signoz.Config, signoz *signoz.SigNoz) (*Server, error) {
 		)
 	}
 
+	cloudIntegrationsController, err := cloudintegrations.NewController(signoz.SQLStore)
+	if err != nil {
+		return nil, fmt.Errorf(
+			"couldn't create cloud provider integrations controller: %w", err,
+		)
+	}
+
 	// ingestion pipelines manager
 	logParsingPipelineController, err := logparsingpipeline.NewLogParsingPipelinesController(
 		signoz.SQLStore,
@@ -159,12 +167,12 @@ func NewServer(config signoz.Config, signoz *signoz.SigNoz) (*Server, error) {
 		RulesManager:                  rm,
 		UsageManager:                  usageManager,
 		IntegrationsController:        integrationsController,
+		CloudIntegrationsController:   cloudIntegrationsController,
 		LogsParsingPipelineController: logParsingPipelineController,
 		FluxInterval:                  config.Querier.FluxInterval,
 		Gateway:                       gatewayProxy,
 		GatewayUrl:                    config.Gateway.URL.String(),
 		GlobalConfig:                  config.Global,
-		Logger:                        signoz.Instrumentation.Logger(),
 	}
 
 	apiHandler, err := api.NewAPIHandler(apiOpts, signoz)

frontend/__mocks__/uplotMock.ts

@@ -12,6 +12,8 @@ export interface MockUPlotInstance {
 export interface MockUPlotPaths {
 	spline: jest.Mock;
 	bars: jest.Mock;
+	linear: jest.Mock;
+	stepped: jest.Mock;
 }
 
 // Create mock instance methods
@@ -23,10 +25,23 @@ const createMockUPlotInstance = (): MockUPlotInstance => ({
 	setSeries: jest.fn(),
 });
 
-// Create mock paths
-const mockPaths: MockUPlotPaths = {
-	spline: jest.fn(),
-	bars: jest.fn(),
+// Path builder: (self, seriesIdx, idx0, idx1) => paths or null
+const createMockPathBuilder = (name: string): jest.Mock =>
+	jest.fn(() => ({
+		name, // To test if the correct pathBuilder is used
+		stroke: jest.fn(),
+		fill: jest.fn(),
+		clip: jest.fn(),
+	}));
+
+// Create mock paths - linear, spline, stepped needed by UPlotSeriesBuilder.getPathBuilder
+const mockPaths = {
+	spline: jest.fn(() => createMockPathBuilder('spline')),
+	bars: jest.fn(() => createMockPathBuilder('bars')),
+	linear: jest.fn(() => createMockPathBuilder('linear')),
+	stepped: jest.fn((opts?: { align?: number }) =>
+		createMockPathBuilder(`stepped-(${opts?.align ?? 0})`),
+	),
 };
 
 // Mock static methods

frontend/package.json

@@ -55,6 +55,7 @@
 		"@signozhq/icons": "0.1.0",
 		"@signozhq/input": "0.0.2",
 		"@signozhq/popover": "0.0.0",
+		"@signozhq/radio-group": "0.0.2",
 		"@signozhq/resizable": "0.0.0",
 		"@signozhq/sonner": "0.1.0",
 		"@signozhq/table": "0.3.7",

frontend/src/api/dashboard/variables/dashboardVariablesQuery.ts

@@ -11,6 +11,7 @@ import {
 
 const dashboardVariablesQuery = async (
 	props: Props,
+	signal?: AbortSignal,
 ): Promise<SuccessResponse<VariableResponseProps> | ErrorResponse> => {
 	try {
 		const { globalTime } = store.getState();
@@ -32,7 +33,7 @@ const dashboardVariablesQuery = async (
 
 		payload.variables = { ...payload.variables, ...timeVariables };
 
-		const response = await axios.post(`/variables/query`, payload);
+		const response = await axios.post(`/variables/query`, payload, { signal });
 
 		return {
 			statusCode: 200,

frontend/src/api/dynamicVariables/getFieldValues.ts

@@ -19,6 +19,7 @@ export const getFieldValues = async (
 	startUnixMilli?: number,
 	endUnixMilli?: number,
 	existingQuery?: string,
+	abortSignal?: AbortSignal,
 ): Promise<SuccessResponseV2<FieldValueResponse>> => {
 	const params: Record<string, string> = {};
 
@@ -47,7 +48,10 @@ export const getFieldValues = async (
 	}
 
 	try {
-		const response = await axios.get('/fields/values', { params });
+		const response = await axios.get('/fields/values', {
+			params,
+			signal: abortSignal,
+		});
 
 		// Normalize values from different types (stringValues, boolValues, etc.)
 		if (response.data?.data?.values) {

frontend/src/api/v5/queryRange/convertV5Response.test.ts

@@ -73,7 +73,7 @@ describe('convertV5ResponseToLegacy', () => {
 		const v5Data: QueryRangeResponseV5 = {
 			type: 'time_series',
 			data: { results: [timeSeries] },
-			meta: { rowsScanned: 0, bytesScanned: 0, durationMs: 0 },
+			meta: { rowsScanned: 0, bytesScanned: 0, durationMs: 0, stepIntervals: {} },
 		};
 
 		const params = makeBaseParams('time_series', [
@@ -156,7 +156,7 @@ describe('convertV5ResponseToLegacy', () => {
 		const v5Data: QueryRangeResponseV5 = {
 			type: 'scalar',
 			data: { results: [scalar] },
-			meta: { rowsScanned: 0, bytesScanned: 0, durationMs: 0 },
+			meta: { rowsScanned: 0, bytesScanned: 0, durationMs: 0, stepIntervals: {} },
 		};
 
 		const params = makeBaseParams('scalar', [
@@ -239,7 +239,7 @@ describe('convertV5ResponseToLegacy', () => {
 		const v5Data: QueryRangeResponseV5 = {
 			type: 'scalar',
 			data: { results: [scalar] },
-			meta: { rowsScanned: 0, bytesScanned: 0, durationMs: 0 },
+			meta: { rowsScanned: 0, bytesScanned: 0, durationMs: 0, stepIntervals: {} },
 		};
 
 		const params = makeBaseParams('scalar', [

frontend/src/api/v5/queryRange/convertV5Response.ts

@@ -388,6 +388,7 @@ export function convertV5ResponseToLegacy(
 					warnings: v5Data?.data?.warning || [],
 				},
 				warning: v5Data?.warning || undefined,
+				meta: v5Data?.meta,
 			},
 			warning: v5Data?.warning || undefined,
 		};
@@ -406,6 +407,7 @@ export function convertV5ResponseToLegacy(
 		payload: {
 			data: convertedData,
 			warning: v5Response.payload?.data?.warning || undefined,
+			meta: v5Data?.meta,
 		},
 	};
 

frontend/src/auto-import-registry.d.ts

@@ -21,6 +21,7 @@ import '@signozhq/design-tokens';
 import '@signozhq/icons';
 import '@signozhq/input';
 import '@signozhq/popover';
+import '@signozhq/radio-group';
 import '@signozhq/resizable';
 import '@signozhq/sonner';
 import '@signozhq/table';

frontend/src/components/NewSelect/CustomMultiSelect.tsx

@@ -73,6 +73,7 @@ const CustomMultiSelect: React.FC<CustomMultiSelectProps> = ({
 	enableRegexOption = false,
 	isDynamicVariable = false,
 	showRetryButton = true,
+	waitingMessage,
 	...rest
 }) => {
 	// ===== State & Refs =====
@@ -1681,6 +1682,7 @@ const CustomMultiSelect: React.FC<CustomMultiSelectProps> = ({
 					{!loading &&
 						!errorMessage &&
 						!noDataMessage &&
+						!waitingMessage &&
 						!(showIncompleteDataMessage && isScrolledToBottom) && (
 							<section className="navigate">
 								<ArrowDown size={8} className="icons" />
@@ -1698,7 +1700,17 @@ const CustomMultiSelect: React.FC<CustomMultiSelectProps> = ({
 							<div className="navigation-text">Refreshing values...</div>
 						</div>
 					)}
-					{errorMessage && !loading && (
+					{!loading && waitingMessage && (
+						<div className="navigation-loading">
+							<div className="navigation-icons">
+								<LoadingOutlined />
+							</div>
+							<div className="navigation-text" title={waitingMessage}>
+								{waitingMessage}
+							</div>
+						</div>
+					)}
+					{errorMessage && !loading && !waitingMessage && (
 						<div className="navigation-error">
 							<div className="navigation-text">
 								{errorMessage || SOMETHING_WENT_WRONG}
@@ -1720,6 +1732,7 @@ const CustomMultiSelect: React.FC<CustomMultiSelectProps> = ({
 					{showIncompleteDataMessage &&
 						isScrolledToBottom &&
 						!loading &&
+						!waitingMessage &&
 						!errorMessage && (
 							<div className="navigation-text-incomplete">
 								Don&apos;t see the value? Use search
@@ -1762,6 +1775,7 @@ const CustomMultiSelect: React.FC<CustomMultiSelectProps> = ({
 		isDarkMode,
 		isDynamicVariable,
 		showRetryButton,
+		waitingMessage,
 	]);
 
 	// Custom handler for dropdown visibility changes

frontend/src/components/NewSelect/CustomSelect.tsx

@@ -63,6 +63,7 @@ const CustomSelect: React.FC<CustomSelectProps> = ({
 	showIncompleteDataMessage = false,
 	showRetryButton = true,
 	isDynamicVariable = false,
+	waitingMessage,
 	...rest
 }) => {
 	// ===== State & Refs =====
@@ -568,6 +569,7 @@ const CustomSelect: React.FC<CustomSelectProps> = ({
 					{!loading &&
 						!errorMessage &&
 						!noDataMessage &&
+						!waitingMessage &&
 						!(showIncompleteDataMessage && isScrolledToBottom) && (
 							<section className="navigate">
 								<ArrowDown size={8} className="icons" />
@@ -583,6 +585,16 @@ const CustomSelect: React.FC<CustomSelectProps> = ({
 							<div className="navigation-text">Refreshing values...</div>
 						</div>
 					)}
+					{!loading && waitingMessage && (
+						<div className="navigation-loading">
+							<div className="navigation-icons">
+								<LoadingOutlined />
+							</div>
+							<div className="navigation-text" title={waitingMessage}>
+								{waitingMessage}
+							</div>
+						</div>
+					)}
 					{errorMessage && !loading && (
 						<div className="navigation-error">
 							<div className="navigation-text">
@@ -605,6 +617,7 @@ const CustomSelect: React.FC<CustomSelectProps> = ({
 					{showIncompleteDataMessage &&
 						isScrolledToBottom &&
 						!loading &&
+						!waitingMessage &&
 						!errorMessage && (
 							<div className="navigation-text-incomplete">
 								Don&apos;t see the value? Use search
@@ -641,6 +654,7 @@ const CustomSelect: React.FC<CustomSelectProps> = ({
 		showRetryButton,
 		isDarkMode,
 		isDynamicVariable,
+		waitingMessage,
 	]);
 
 	// Handle dropdown visibility changes

frontend/src/components/NewSelect/__test__/VariableItem.integration.test.tsx

@@ -78,12 +78,10 @@ function TestWrapper({ children }: { children: React.ReactNode }): JSX.Element {
 describe('VariableItem Integration Tests', () => {
 	let user: ReturnType<typeof userEvent.setup>;
 	let mockOnValueUpdate: jest.Mock;
-	let mockSetVariablesToGetUpdated: jest.Mock;
 
 	beforeEach(() => {
 		user = userEvent.setup();
 		mockOnValueUpdate = jest.fn();
-		mockSetVariablesToGetUpdated = jest.fn();
 		jest.clearAllMocks();
 	});
 
@@ -102,9 +100,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);
@@ -150,9 +145,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);
@@ -195,9 +187,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);
@@ -247,9 +236,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);
@@ -272,9 +258,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);
@@ -308,9 +291,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);
@@ -344,9 +324,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);
@@ -369,9 +346,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);
@@ -405,9 +379,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);
@@ -461,9 +432,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);
@@ -508,9 +476,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);
@@ -548,9 +513,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);
@@ -582,9 +544,6 @@ describe('VariableItem Integration Tests', () => {
 						variableData={variable}
 						existingVariables={{}}
 						onValueUpdate={mockOnValueUpdate}
-						variablesToGetUpdated={[]}
-						setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-						dependencyData={null}
 					/>
 				</TestWrapper>,
 			);

frontend/src/components/NewSelect/types.ts

@@ -30,6 +30,7 @@ export interface CustomSelectProps extends Omit<SelectProps, 'options'> {
 	showIncompleteDataMessage?: boolean;
 	showRetryButton?: boolean;
 	isDynamicVariable?: boolean;
+	waitingMessage?: string;
 }
 
 export interface CustomTagProps {
@@ -66,4 +67,5 @@ export interface CustomMultiSelectProps
 	enableRegexOption?: boolean;
 	isDynamicVariable?: boolean;
 	showRetryButton?: boolean;
+	waitingMessage?: string;
 }

frontend/src/components/QuickFilters/QuickFilters.tsx

@@ -282,11 +282,11 @@ export default function QuickFilters(props: IQuickFiltersProps): JSX.Element {
 						size="small"
 						style={{ marginLeft: 'auto' }}
 						checked={showIP ?? true}
-						onClick={(): void => {
+						onChange={(checked): void => {
 							logEvent('API Monitoring: Show IP addresses clicked', {
-								showIP: !(showIP ?? true),
+								showIP: checked,
 							});
-							setParams({ showIP });
+							setParams({ showIP: checked });
 						}}
 					/>
 				</div>

frontend/src/components/QuickFilters/tests/QuickFilters.test.tsx

@@ -1,4 +1,8 @@
 import { ENVIRONMENT } from 'constants/env';
+import {
+	ApiMonitoringParams,
+	useApiMonitoringParams,
+} from 'container/ApiMonitoring/queryParams';
 import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
 import {
 	otherFiltersResponse,
@@ -18,10 +22,15 @@ import { QuickFiltersConfig } from './constants';
 jest.mock('hooks/queryBuilder/useQueryBuilder', () => ({
 	useQueryBuilder: jest.fn(),
 }));
+jest.mock('container/ApiMonitoring/queryParams');
 
 const handleFilterVisibilityChange = jest.fn();
 const redirectWithQueryBuilderData = jest.fn();
 const putHandler = jest.fn();
+const mockSetApiMonitoringParams = jest.fn() as jest.MockedFunction<
+	(newParams: Partial<ApiMonitoringParams>, replace?: boolean) => void
+>;
+const mockUseApiMonitoringParams = jest.mocked(useApiMonitoringParams);
 
 const BASE_URL = ENVIRONMENT.baseURL;
 const SIGNAL = SignalType.LOGS;
@@ -84,6 +93,28 @@ TestQuickFilters.defaultProps = {
 	config: QuickFiltersConfig,
 };
 
+function TestQuickFiltersApiMonitoring({
+	signal = SignalType.LOGS,
+	config = QuickFiltersConfig,
+}: {
+	signal?: SignalType;
+	config?: IQuickFiltersConfig[];
+}): JSX.Element {
+	return (
+		<QuickFilters
+			source={QuickFiltersSource.API_MONITORING}
+			config={config}
+			handleFilterVisibilityChange={handleFilterVisibilityChange}
+			signal={signal}
+		/>
+	);
+}
+
+TestQuickFiltersApiMonitoring.defaultProps = {
+	signal: '',
+	config: QuickFiltersConfig,
+};
+
 beforeAll(() => {
 	server.listen();
 });
@@ -112,6 +143,10 @@ beforeEach(() => {
 		lastUsedQuery: 0,
 		redirectWithQueryBuilderData,
 	});
+	mockUseApiMonitoringParams.mockReturnValue([
+		{ showIP: true } as ApiMonitoringParams,
+		mockSetApiMonitoringParams,
+	]);
 	setupServer();
 });
 
@@ -251,6 +286,24 @@ describe('Quick Filters', () => {
 			);
 		});
 	});
+	it('toggles Show IP addresses and updates API Monitoring params', async () => {
+		const user = userEvent.setup({ pointerEventsCheck: 0 });
+
+		render(<TestQuickFiltersApiMonitoring />);
+
+		// Switch should be rendered and initially checked
+		expect(screen.getByText('Show IP addresses')).toBeInTheDocument();
+		const toggle = screen.getByRole('switch');
+		expect(toggle).toHaveAttribute('aria-checked', 'true');
+
+		await user.click(toggle);
+
+		await waitFor(() => {
+			expect(mockSetApiMonitoringParams).toHaveBeenCalledWith(
+				expect.objectContaining({ showIP: false }),
+			);
+		});
+	});
 });
 
 describe('Quick Filters with custom filters', () => {

frontend/src/container/DashboardContainer/DashboardVariablesSelection/DashboardVariableSelection.tsx

@@ -9,11 +9,15 @@ import {
 import useVariablesFromUrl from 'hooks/dashboard/useVariablesFromUrl';
 import { useDashboard } from 'providers/Dashboard/Dashboard';
 import { initializeDefaultVariables } from 'providers/Dashboard/initializeDefaultVariables';
+import {
+	enqueueDescendantsOfVariable,
+	enqueueFetchOfAllVariables,
+	initializeVariableFetchStore,
+} from 'providers/Dashboard/store/variableFetchStore';
 import { AppState } from 'store/reducers';
 import { IDashboardVariable } from 'types/api/dashboard/getAll';
 import { GlobalReducer } from 'types/reducer/globalTime';
 
-import { onUpdateVariableNode } from './util';
 import VariableItem from './VariableItem';
 
 import './DashboardVariableSelection.styles.scss';
@@ -22,8 +26,6 @@ function DashboardVariableSelection(): JSX.Element | null {
 	const {
 		setSelectedDashboard,
 		updateLocalStorageDashboardVariables,
-		variablesToGetUpdated,
-		setVariablesToGetUpdated,
 	} = useDashboard();
 
 	const { updateUrlVariable, getUrlVariables } = useVariablesFromUrl();
@@ -55,11 +57,14 @@ function DashboardVariableSelection(): JSX.Element | null {
 		[dependencyData?.order],
 	);
 
-	// Trigger refetch when dependency order changes or global time changes
+	// Initialize fetch store then start a new fetch cycle.
+	// Runs on dependency order changes, and time range changes.
 	useEffect(() => {
-		if (dependencyData?.order && dependencyData.order.length > 0) {
-			setVariablesToGetUpdated(dependencyData?.order || []);
-		}
+		const allVariableNames = sortedVariablesArray
+			.map((v) => v.name)
+			.filter((name): name is string => !!name);
+		initializeVariableFetchStore(allVariableNames);
+		enqueueFetchOfAllVariables();
 		// eslint-disable-next-line react-hooks/exhaustive-deps
 	}, [dependencyOrderKey, minTime, maxTime]);
 
@@ -121,29 +126,14 @@ function DashboardVariableSelection(): JSX.Element | null {
 				return prev;
 			});
 
-			if (dependencyData) {
-				const updatedVariables: string[] = [];
-				onUpdateVariableNode(
-					name,
-					dependencyData.graph,
-					dependencyData.order,
-					(node) => updatedVariables.push(node),
-				);
-				setVariablesToGetUpdated((prev) => [
-					...new Set([...prev, ...updatedVariables.filter((v) => v !== name)]),
-				]);
-			} else {
-				setVariablesToGetUpdated((prev) => prev.filter((v) => v !== name));
-			}
+			// Cascade: enqueue query-type descendants for refetching
+			enqueueDescendantsOfVariable(name);
 		},
 		[
-			// This can be removed
 			dashboardVariables,
 			updateLocalStorageDashboardVariables,
-			dependencyData,
 			updateUrlVariable,
 			setSelectedDashboard,
-			setVariablesToGetUpdated,
 		],
 	);
 
@@ -158,9 +148,6 @@ function DashboardVariableSelection(): JSX.Element | null {
 						existingVariables={dashboardVariables}
 						variableData={variable}
 						onValueUpdate={onValueUpdate}
-						variablesToGetUpdated={variablesToGetUpdated}
-						setVariablesToGetUpdated={setVariablesToGetUpdated}
-						dependencyData={dependencyData}
 					/>
 				);
 			})}

frontend/src/container/DashboardContainer/DashboardVariablesSelection/DynamicVariableInput.tsx

@@ -2,18 +2,25 @@ import { memo, useCallback, useMemo, useState } from 'react';
 import { useQuery } from 'react-query';
 import { useSelector } from 'react-redux';
 import { getFieldValues } from 'api/dynamicVariables/getFieldValues';
-import { SOMETHING_WENT_WRONG } from 'constants/api';
 import { DEBOUNCE_DELAY } from 'constants/queryBuilderFilterConfig';
 import { REACT_QUERY_KEY } from 'constants/reactQueryKeys';
+import { useVariableFetchState } from 'hooks/dashboard/useVariableFetchState';
 import useDebounce from 'hooks/useDebounce';
-import { isEmpty } from 'lodash-es';
 import { AppState } from 'store/reducers';
+import { SuccessResponseV2 } from 'types/api';
+import { FieldValueResponse } from 'types/api/dynamicVariables/getFieldValues';
 import { GlobalReducer } from 'types/reducer/globalTime';
 import { isRetryableError as checkIfRetryableError } from 'utils/errorUtils';
 
 import SelectVariableInput from './SelectVariableInput';
 import { useDashboardVariableSelectHelper } from './useDashboardVariableSelectHelper';
-import { getOptionsForDynamicVariable } from './util';
+import {
+	buildExistingDynamicVariableQuery,
+	extractErrorMessage,
+	getOptionsForDynamicVariable,
+	mergeUniqueStrings,
+	settleVariableFetch,
+} from './util';
 import { VariableItemProps } from './VariableItem';
 import { dynamicVariableSelectStrategy } from './variableSelectStrategy/dynamicVariableSelectStrategy';
 
@@ -24,7 +31,6 @@ type DynamicVariableInputProps = Pick<
 	'variableData' | 'onValueUpdate' | 'existingVariables'
 >;
 
-// eslint-disable-next-line sonarjs/cognitive-complexity
 function DynamicVariableInput({
 	variableData,
 	onValueUpdate,
@@ -55,14 +61,8 @@ function DynamicVariableInput({
 
 	const debouncedApiSearchText = useDebounce(apiSearchText, DEBOUNCE_DELAY);
 
-	// Build a memoized list of all currently available option strings (normalized + related)
 	const allAvailableOptionStrings = useMemo(
-		() => [
-			...new Set([
-				...optionsData.map((v) => v.toString()),
-				...relatedValues.map((v) => v.toString()),
-			]),
-		],
+		() => mergeUniqueStrings(optionsData, relatedValues),
 		[optionsData, relatedValues],
 	);
 
@@ -104,67 +104,24 @@ function DynamicVariableInput({
 		(state) => state.globalTime,
 	);
 
-	// existing query is the query made from the other dynamic variables around this one with there current values
-	// for e.g. k8s.namespace.name IN ["zeus", "gene"] AND doc_op_type IN ["test"]
-	// eslint-disable-next-line sonarjs/cognitive-complexity
-	const existingQuery = useMemo(() => {
-		if (!existingVariables || !variableData.dynamicVariablesAttribute) {
-			return '';
-		}
+	const {
+		variableFetchCycleId,
+		isVariableSettled,
+		isVariableFetching,
+		hasVariableFetchedOnce,
+		isVariableWaitingForDependencies,
+		variableDependencyWaitMessage,
+	} = useVariableFetchState(variableData.name || '');
 
-		const queryParts: string[] = [];
-
-		Object.entries(existingVariables).forEach(([, variable]) => {
-			// Skip the current variable being processed
-			if (variable.id === variableData.id) {
-				return;
-			}
-
-			// Only include dynamic variables that have selected values and are not selected as ALL
-			if (
-				variable.type === 'DYNAMIC' &&
-				variable.dynamicVariablesAttribute &&
-				variable.selectedValue &&
-				!isEmpty(variable.selectedValue) &&
-				(variable.showALLOption ? !variable.allSelected : true)
-			) {
-				const attribute = variable.dynamicVariablesAttribute;
-				const values = Array.isArray(variable.selectedValue)
-					? variable.selectedValue
-					: [variable.selectedValue];
-
-				// Filter out empty values and convert to strings
-				const validValues = values
-					.filter((val) => val !== null && val !== undefined && val !== '')
-					.map((val) => val.toString());
-
-				if (validValues.length > 0) {
-					// Format values for query - wrap strings in quotes, keep numbers as is
-					const formattedValues = validValues.map((val) => {
-						// Check if value is a number
-						const numValue = Number(val);
-						if (!Number.isNaN(numValue) && Number.isFinite(numValue)) {
-							return val; // Keep as number
-						}
-						// Escape single quotes and wrap in quotes
-						return `'${val.replace(/'/g, "\\'")}'`;
-					});
-
-					if (formattedValues.length === 1) {
-						queryParts.push(`${attribute} = ${formattedValues[0]}`);
-					} else {
-						queryParts.push(`${attribute} IN [${formattedValues.join(', ')}]`);
-					}
-				}
-			}
-		});
-
-		return queryParts.join(' AND ');
-	}, [
-		existingVariables,
-		variableData.id,
-		variableData.dynamicVariablesAttribute,
-	]);
+	const existingQuery = useMemo(
+		() =>
+			buildExistingDynamicVariableQuery(
+				existingVariables,
+				variableData.id,
+				!!variableData.dynamicVariablesAttribute,
+			),
+		[existingVariables, variableData.id, variableData.dynamicVariablesAttribute],
+	);
 
 	// Wrap the hook's onDropdownVisibleChange to also track isDropdownOpen and handle cleanup
 	const handleSelectDropdownVisibilityChange = useCallback(
@@ -182,6 +139,73 @@ function DynamicVariableInput({
 		[onDropdownVisibleChange, optionsData, originalRelatedValues],
 	);
 
+	const handleQuerySuccess = useCallback(
+		(data: SuccessResponseV2<FieldValueResponse>): void => {
+			const newNormalizedValues = data.data?.normalizedValues || [];
+			const newRelatedValues = data.data?.relatedValues || [];
+
+			if (!debouncedApiSearchText) {
+				setOptionsData(newNormalizedValues);
+				setIsComplete(data.data?.complete || false);
+			}
+			setFilteredOptionsData(newNormalizedValues);
+			setRelatedValues(newRelatedValues);
+			setOriginalRelatedValues(newRelatedValues);
+
+			// Sync temp selection with latest API values when ALL is active and dropdown is open
+			if (variableData.allSelected && isDropdownOpen) {
+				const latestValues = mergeUniqueStrings(
+					newNormalizedValues,
+					newRelatedValues,
+				);
+
+				const currentStrings = Array.isArray(tempSelection)
+					? tempSelection.map((v) => v.toString())
+					: tempSelection
+					? [tempSelection.toString()]
+					: [];
+
+				const areSame =
+					currentStrings.length === latestValues.length &&
+					latestValues.every((v) => currentStrings.includes(v));
+
+				if (!areSame) {
+					setTempSelection(latestValues);
+				}
+			}
+
+			// Apply default if no value is selected (e.g., new variable, first load)
+			if (!debouncedApiSearchText) {
+				applyDefaultIfNeeded(
+					mergeUniqueStrings(newNormalizedValues, newRelatedValues),
+				);
+			}
+
+			settleVariableFetch(variableData.name, 'complete');
+		},
+		[
+			debouncedApiSearchText,
+			variableData.allSelected,
+			variableData.name,
+			isDropdownOpen,
+			tempSelection,
+			setTempSelection,
+			applyDefaultIfNeeded,
+		],
+	);
+
+	const handleQueryError = useCallback(
+		(error: { message?: string } | null): void => {
+			if (error) {
+				setErrorMessage(extractErrorMessage(error));
+				setIsRetryableError(checkIfRetryableError(error));
+			}
+
+			settleVariableFetch(variableData.name, 'failure');
+		},
+		[variableData.name],
+	);
+
 	const { isLoading, refetch } = useQuery(
 		[
 			REACT_QUERY_KEY.DASHBOARD_BY_ID,
@@ -192,13 +216,22 @@ function DynamicVariableInput({
 			debouncedApiSearchText,
 			variableData.dynamicVariablesSource,
 			variableData.dynamicVariablesAttribute,
+			variableFetchCycleId,
 		],
 		{
+			/*
+			 * enabled if
+			 * - we have dynamic variable source and attribute defined (ALWAYS)
+			 * - AND
+			 *   - we're either still fetching variable options
+			 *   - OR
+			 *   - if variable is in idle state and we have already fetched options for it
+			 **/
 			enabled:
-				variableData.type === 'DYNAMIC' &&
 				!!variableData.dynamicVariablesSource &&
-				!!variableData.dynamicVariablesAttribute,
-			queryFn: () =>
+				!!variableData.dynamicVariablesAttribute &&
+				(isVariableFetching || (isVariableSettled && hasVariableFetchedOnce)),
+			queryFn: ({ signal }) =>
 				getFieldValues(
 					variableData.dynamicVariablesSource?.toLowerCase() === 'all telemetry'
 						? undefined
@@ -211,70 +244,10 @@ function DynamicVariableInput({
 					minTime,
 					maxTime,
 					existingQuery,
+					signal,
 				),
-			onSuccess: (data) => {
-				const newNormalizedValues = data.data?.normalizedValues || [];
-				const newRelatedValues = data.data?.relatedValues || [];
-
-				if (!debouncedApiSearchText) {
-					setOptionsData(newNormalizedValues);
-					setIsComplete(data.data?.complete || false);
-				}
-				setFilteredOptionsData(newNormalizedValues);
-				setRelatedValues(newRelatedValues);
-				setOriginalRelatedValues(newRelatedValues);
-
-				// Only run auto-check logic when necessary to avoid performance issues
-				if (variableData.allSelected && isDropdownOpen) {
-					// Build the latest full list from API (normalized + related)
-					const latestValues = [
-						...new Set([
-							...newNormalizedValues.map((v) => v.toString()),
-							...newRelatedValues.map((v) => v.toString()),
-						]),
-					];
-
-					// Update temp selection to exactly reflect latest API values when ALL is active
-					const currentStrings = Array.isArray(tempSelection)
-						? tempSelection.map((v) => v.toString())
-						: tempSelection
-						? [tempSelection.toString()]
-						: [];
-					const areSame =
-						currentStrings.length === latestValues.length &&
-						latestValues.every((v) => currentStrings.includes(v));
-					if (!areSame) {
-						setTempSelection(latestValues);
-					}
-				}
-
-				// Apply default if no value is selected (e.g., new variable, first load)
-				if (!debouncedApiSearchText) {
-					const allNewOptions = [
-						...new Set([
-							...newNormalizedValues.map((v) => v.toString()),
-							...newRelatedValues.map((v) => v.toString()),
-						]),
-					];
-					applyDefaultIfNeeded(allNewOptions);
-				}
-			},
-			onError: (error: any) => {
-				if (error) {
-					let message = SOMETHING_WENT_WRONG;
-					if (error?.message) {
-						message = error?.message;
-					} else {
-						message =
-							'Please make sure configuration is valid and you have required setup and permissions';
-					}
-					setErrorMessage(message);
-
-					// Check if error is retryable (5xx) or not (4xx)
-					const isRetryable = checkIfRetryableError(error);
-					setIsRetryableError(isRetryable);
-				}
-			},
+			onSuccess: handleQuerySuccess,
+			onError: handleQueryError,
 		},
 	);
 
@@ -336,6 +309,8 @@ function DynamicVariableInput({
 			showRetryButton={isRetryableError}
 			showIncompleteDataMessage={!isComplete && filteredOptionsData.length > 0}
 			onSearch={handleSearch}
+			waiting={isVariableWaitingForDependencies}
+			waitingMessage={variableDependencyWaitMessage}
 		/>
 	);
 }

frontend/src/container/DashboardContainer/DashboardVariablesSelection/QueryVariableInput.tsx

@@ -3,8 +3,9 @@ import { useQuery } from 'react-query';
 import { useSelector } from 'react-redux';
 import dashboardVariablesQuery from 'api/dashboard/variables/dashboardVariablesQuery';
 import { REACT_QUERY_KEY } from 'constants/reactQueryKeys';
+import { useVariableFetchState } from 'hooks/dashboard/useVariableFetchState';
 import sortValues from 'lib/dashboardVariables/sortVariableValues';
-import { isArray, isString } from 'lodash-es';
+import { isArray, isEmpty, isString } from 'lodash-es';
 import { AppState } from 'store/reducers';
 import { VariableResponseProps } from 'types/api/dashboard/variables/query';
 import { GlobalReducer } from 'types/reducer/globalTime';
@@ -12,26 +13,18 @@ import { GlobalReducer } from 'types/reducer/globalTime';
 import { variablePropsToPayloadVariables } from '../utils';
 import SelectVariableInput from './SelectVariableInput';
 import { useDashboardVariableSelectHelper } from './useDashboardVariableSelectHelper';
-import { areArraysEqual, checkAPIInvocation } from './util';
+import { areArraysEqual, settleVariableFetch } from './util';
 import { VariableItemProps } from './VariableItem';
 import { queryVariableSelectStrategy } from './variableSelectStrategy/queryVariableSelectStrategy';
 
 type QueryVariableInputProps = Pick<
 	VariableItemProps,
-	| 'variableData'
-	| 'existingVariables'
-	| 'onValueUpdate'
-	| 'variablesToGetUpdated'
-	| 'setVariablesToGetUpdated'
-	| 'dependencyData'
+	'variableData' | 'existingVariables' | 'onValueUpdate'
 >;
 
 function QueryVariableInput({
 	variableData,
 	existingVariables,
-	variablesToGetUpdated,
-	setVariablesToGetUpdated,
-	dependencyData,
 	onValueUpdate,
 }: QueryVariableInputProps): JSX.Element {
 	const [optionsData, setOptionsData] = useState<(string | number | boolean)[]>(
@@ -43,6 +36,15 @@ function QueryVariableInput({
 		(state) => state.globalTime,
 	);
 
+	const {
+		variableFetchCycleId,
+		isVariableSettled,
+		isVariableFetching,
+		hasVariableFetchedOnce,
+		isVariableWaitingForDependencies,
+		variableDependencyWaitMessage,
+	} = useVariableFetchState(variableData.name || '');
+
 	const {
 		tempSelection,
 		setTempSelection,
@@ -60,16 +62,6 @@ function QueryVariableInput({
 		strategy: queryVariableSelectStrategy,
 	});
 
-	const validVariableUpdate = useCallback((): boolean => {
-		if (!variableData.name) {
-			return false;
-		}
-		return Boolean(
-			variablesToGetUpdated.length &&
-				variablesToGetUpdated[0] === variableData.name,
-		);
-	}, [variableData.name, variablesToGetUpdated]);
-
 	const getOptions = useCallback(
 		// eslint-disable-next-line sonarjs/cognitive-complexity
 		(variablesRes: VariableResponseProps | null): void => {
@@ -103,18 +95,24 @@ function QueryVariableInput({
 							valueNotInList = true;
 						}
 
-						// variablesData.allSelected is added for the case where on change of options we need to update the
-						// local storage
-						if (
-							variableData.name &&
-							(validVariableUpdate() || valueNotInList || variableData.allSelected)
-						) {
+						if (variableData.name && (valueNotInList || variableData.allSelected)) {
 							if (
 								variableData.allSelected &&
 								variableData.multiSelect &&
 								variableData.showALLOption
 							) {
-								onValueUpdate(variableData.name, variableData.id, newOptionsData, true);
+								if (
+									variableData.name &&
+									variableData.id &&
+									!isEmpty(variableData.selectedValue)
+								) {
+									onValueUpdate(
+										variableData.name,
+										variableData.id,
+										newOptionsData,
+										true,
+									);
+								}
 
 								// Update tempSelection to maintain ALL state when dropdown is open
 								if (tempSelection !== undefined) {
@@ -132,7 +130,11 @@ function QueryVariableInput({
 										newOptionsData.every((option) => selectedValue.includes(option));
 								}
 
-								if (variableData.name && variableData.id) {
+								if (
+									variableData.name &&
+									variableData.id &&
+									!isEmpty(variableData.selectedValue)
+								) {
 									onValueUpdate(variableData.name, variableData.id, value, allSelected);
 								}
 							}
@@ -141,10 +143,6 @@ function QueryVariableInput({
 						setOptionsData(newOptionsData);
 						// Apply default if no value is selected (e.g., new variable, first load)
 						applyDefaultIfNeeded(newOptionsData);
-					} else {
-						setVariablesToGetUpdated((prev) =>
-							prev.filter((name) => name !== variableData.name),
-						);
 					}
 				}
 			} catch (e) {
@@ -157,8 +155,6 @@ function QueryVariableInput({
 			onValueUpdate,
 			tempSelection,
 			setTempSelection,
-			validVariableUpdate,
-			setVariablesToGetUpdated,
 			applyDefaultIfNeeded,
 		],
 	);
@@ -169,27 +165,28 @@ function QueryVariableInput({
 			variableData.name || '',
 			`${minTime}`,
 			`${maxTime}`,
-			JSON.stringify(dependencyData?.order),
+			variableFetchCycleId,
 		],
 		{
-			enabled:
-				variableData &&
-				checkAPIInvocation(
-					variablesToGetUpdated,
-					variableData,
-					dependencyData?.parentDependencyGraph,
+			/*
+			 * enabled if
+			 *   - we're either still fetching variable options
+			 *   - OR
+			 *   - if variable is in idle state and we have already fetched options for it
+			 **/
+			enabled: isVariableFetching || (isVariableSettled && hasVariableFetchedOnce),
+			queryFn: ({ signal }) =>
+				dashboardVariablesQuery(
+					{
+						query: variableData.queryValue || '',
+						variables: variablePropsToPayloadVariables(existingVariables),
+					},
+					signal,
 				),
-			queryFn: () =>
-				dashboardVariablesQuery({
-					query: variableData.queryValue || '',
-					variables: variablePropsToPayloadVariables(existingVariables),
-				}),
 			refetchOnWindowFocus: false,
 			onSuccess: (response) => {
 				getOptions(response.payload);
-				setVariablesToGetUpdated((prev) =>
-					prev.filter((v) => v !== variableData.name),
-				);
+				settleVariableFetch(variableData.name, 'complete');
 			},
 			onError: (error: {
 				details: {
@@ -206,9 +203,7 @@ function QueryVariableInput({
 					}
 					setErrorMessage(message);
 				}
-				setVariablesToGetUpdated((prev) =>
-					prev.filter((v) => v !== variableData.name),
-				);
+				settleVariableFetch(variableData.name, 'failure');
 			},
 		},
 	);
@@ -242,6 +237,8 @@ function QueryVariableInput({
 			loading={isLoading}
 			errorMessage={errorMessage}
 			onRetry={handleRetry}
+			waiting={isVariableWaitingForDependencies}
+			waitingMessage={variableDependencyWaitMessage}
 		/>
 	);
 }

frontend/src/container/DashboardContainer/DashboardVariablesSelection/SelectVariableInput.tsx

@@ -28,6 +28,8 @@ interface SelectVariableInputProps {
 	showRetryButton?: boolean;
 	showIncompleteDataMessage?: boolean;
 	onSearch?: (searchTerm: string) => void;
+	waiting?: boolean;
+	waitingMessage?: string;
 }
 
 const MAX_TAG_DISPLAY_VALUES = 10;
@@ -65,6 +67,7 @@ function SelectVariableInput({
 	showRetryButton,
 	showIncompleteDataMessage,
 	onSearch,
+	waitingMessage,
 }: SelectVariableInputProps): JSX.Element {
 	const commonProps = useMemo(
 		() => ({
@@ -78,7 +81,6 @@ function SelectVariableInput({
 			className: 'variable-select',
 			popupClassName: 'dropdown-styles',
 			getPopupContainer: popupContainer,
-			style: SelectItemStyle,
 			showSearch: true,
 			bordered: false,
 
@@ -86,6 +88,8 @@ function SelectVariableInput({
 			'data-testid': 'variable-select',
 			onChange,
 			loading,
+			waitingMessage,
+			style: SelectItemStyle,
 			options,
 			errorMessage,
 			onRetry,
@@ -101,6 +105,7 @@ function SelectVariableInput({
 			defaultValue,
 			onChange,
 			loading,
+			waitingMessage,
 			options,
 			value,
 			errorMessage,

frontend/src/container/DashboardContainer/DashboardVariablesSelection/VariableItem.test.tsx

@@ -47,14 +47,6 @@ describe('VariableItem', () => {
 					variableData={mockVariableData}
 					existingVariables={{}}
 					onValueUpdate={mockOnValueUpdate}
-					variablesToGetUpdated={[]}
-					setVariablesToGetUpdated={(): void => {}}
-					dependencyData={{
-						order: [],
-						graph: {},
-						parentDependencyGraph: {},
-						hasCycle: false,
-					}}
 				/>
 			</MockQueryClientProvider>,
 		);
@@ -69,14 +61,6 @@ describe('VariableItem', () => {
 					variableData={mockVariableData}
 					existingVariables={{}}
 					onValueUpdate={mockOnValueUpdate}
-					variablesToGetUpdated={[]}
-					setVariablesToGetUpdated={(): void => {}}
-					dependencyData={{
-						order: [],
-						graph: {},
-						parentDependencyGraph: {},
-						hasCycle: false,
-					}}
 				/>
 			</MockQueryClientProvider>,
 		);
@@ -92,14 +76,6 @@ describe('VariableItem', () => {
 					variableData={mockVariableData}
 					existingVariables={{}}
 					onValueUpdate={mockOnValueUpdate}
-					variablesToGetUpdated={[]}
-					setVariablesToGetUpdated={(): void => {}}
-					dependencyData={{
-						order: [],
-						graph: {},
-						parentDependencyGraph: {},
-						hasCycle: false,
-					}}
 				/>
 			</MockQueryClientProvider>,
 		);
@@ -133,14 +109,6 @@ describe('VariableItem', () => {
 					variableData={mockCustomVariableData}
 					existingVariables={{}}
 					onValueUpdate={mockOnValueUpdate}
-					variablesToGetUpdated={[]}
-					setVariablesToGetUpdated={(): void => {}}
-					dependencyData={{
-						order: [],
-						graph: {},
-						parentDependencyGraph: {},
-						hasCycle: false,
-					}}
 				/>
 			</MockQueryClientProvider>,
 		);
@@ -163,14 +131,6 @@ describe('VariableItem', () => {
 					variableData={customVariableData}
 					existingVariables={{}}
 					onValueUpdate={mockOnValueUpdate}
-					variablesToGetUpdated={[]}
-					setVariablesToGetUpdated={(): void => {}}
-					dependencyData={{
-						order: [],
-						graph: {},
-						parentDependencyGraph: {},
-						hasCycle: false,
-					}}
 				/>
 			</MockQueryClientProvider>,
 		);
@@ -185,14 +145,6 @@ describe('VariableItem', () => {
 					variableData={mockCustomVariableData}
 					existingVariables={{}}
 					onValueUpdate={mockOnValueUpdate}
-					variablesToGetUpdated={[]}
-					setVariablesToGetUpdated={(): void => {}}
-					dependencyData={{
-						order: [],
-						graph: {},
-						parentDependencyGraph: {},
-						hasCycle: false,
-					}}
 				/>
 			</MockQueryClientProvider>,
 		);

frontend/src/container/DashboardContainer/DashboardVariablesSelection/VariableItem.tsx

@@ -1,7 +1,6 @@
 import { memo } from 'react';
 import { InfoCircleOutlined } from '@ant-design/icons';
 import { Tooltip, Typography } from 'antd';
-import { IDependencyData } from 'providers/Dashboard/store/dashboardVariables/dashboardVariablesStoreTypes';
 import { IDashboardVariable } from 'types/api/dashboard/getAll';
 
 import CustomVariableInput from './CustomVariableInput';
@@ -21,18 +20,12 @@ export interface VariableItemProps {
 		allSelected: boolean,
 		haveCustomValuesSelected?: boolean,
 	) => void;
-	variablesToGetUpdated: string[];
-	setVariablesToGetUpdated: React.Dispatch<React.SetStateAction<string[]>>;
-	dependencyData: IDependencyData | null;
 }
 
 function VariableItem({
 	variableData,
 	onValueUpdate,
 	existingVariables,
-	variablesToGetUpdated,
-	setVariablesToGetUpdated,
-	dependencyData,
 }: VariableItemProps): JSX.Element {
 	const { name, description, type: variableType } = variableData;
 
@@ -65,9 +58,6 @@ function VariableItem({
 						variableData={variableData}
 						onValueUpdate={onValueUpdate}
 						existingVariables={existingVariables}
-						variablesToGetUpdated={variablesToGetUpdated}
-						setVariablesToGetUpdated={setVariablesToGetUpdated}
-						dependencyData={dependencyData}
 					/>
 				)}
 				{variableType === 'DYNAMIC' && (

frontend/src/container/DashboardContainer/DashboardVariablesSelection/__test__/DynamicVariableInput.test.tsx

@@ -7,6 +7,19 @@ import { IDashboardVariable } from 'types/api/dashboard/getAll';
 
 import DynamicVariableInput from '../DynamicVariableInput';
 
+// Mock useVariableFetchState to return "fetching" state so useQuery is enabled
+jest.mock('hooks/dashboard/useVariableFetchState', () => ({
+	useVariableFetchState: (): Record<string, unknown> => ({
+		variableFetchCycleId: 0,
+		variableFetchState: 'loading',
+		isVariableSettled: false,
+		isVariableFetching: true,
+		hasVariableFetchedOnce: false,
+		isVariableWaitingForDependencies: false,
+		variableDependencyWaitMessage: '',
+	}),
+}));
+
 // Don't mock the components - use real ones
 
 // Mock for useQuery
@@ -217,9 +230,10 @@ describe('DynamicVariableInput Component', () => {
 				'',
 				'Traces',
 				'service.name',
+				0, // variableFetchCycleId
 			],
 			expect.objectContaining({
-				enabled: true, // Type is 'DYNAMIC'
+				enabled: true, // isVariableFetching is true from mock
 				queryFn: expect.any(Function),
 				onSuccess: expect.any(Function),
 				onError: expect.any(Function),

frontend/src/container/DashboardContainer/DashboardVariablesSelection/__test__/VariableItem.defaulting.behavior.test.tsx

@@ -8,14 +8,6 @@ import '@testing-library/jest-dom/extend-expect';
 import VariableItem from '../VariableItem';
 
 const mockOnValueUpdate = jest.fn();
-const mockSetVariablesToGetUpdated = jest.fn();
-
-const baseDependencyData = {
-	order: [],
-	graph: {},
-	parentDependencyGraph: {},
-	hasCycle: false,
-};
 
 const TEST_VARIABLE_ID = 'test_variable';
 const VARIABLE_SELECT_TESTID = 'variable-select';
@@ -31,9 +23,6 @@ const renderVariableItem = (
 				variableData={variableData}
 				existingVariables={{}}
 				onValueUpdate={mockOnValueUpdate}
-				variablesToGetUpdated={[]}
-				setVariablesToGetUpdated={mockSetVariablesToGetUpdated}
-				dependencyData={baseDependencyData}
 			/>
 		</MockQueryClientProvider>,
 	);

frontend/src/container/DashboardContainer/DashboardVariablesSelection/__test__/dashboardVariables.test.tsx

@@ -2,14 +2,12 @@ import {
 	buildDependencies,
 	buildDependencyGraph,
 	buildParentDependencyGraph,
-	checkAPIInvocation,
 	onUpdateVariableNode,
 	VariableGraph,
 } from '../util';
 import {
 	buildDependenciesMock,
 	buildGraphMock,
-	checkAPIInvocationMock,
 	onUpdateVariableNodeMock,
 } from './mock';
 
@@ -72,97 +70,6 @@ describe('dashboardVariables - utilities and processors', () => {
 		});
 	});
 
-	describe('checkAPIInvocation', () => {
-		const {
-			variablesToGetUpdated,
-			variableData,
-			parentDependencyGraph,
-		} = checkAPIInvocationMock;
-
-		const mockRootElement = {
-			name: 'deployment_environment',
-			key: '036a47cd-9ffc-47de-9f27-0329198964a8',
-			id: '036a47cd-9ffc-47de-9f27-0329198964a8',
-			modificationUUID: '5f71b591-f583-497c-839d-6a1590c3f60f',
-			selectedValue: 'production',
-			type: 'QUERY',
-			// ... other properties omitted for brevity
-		} as any;
-
-		describe('edge cases', () => {
-			it('should return false when variableData is empty', () => {
-				expect(
-					checkAPIInvocation(
-						variablesToGetUpdated,
-						variableData,
-						parentDependencyGraph,
-					),
-				).toBeFalsy();
-			});
-
-			it('should return true when parentDependencyGraph is empty', () => {
-				expect(
-					checkAPIInvocation(variablesToGetUpdated, variableData, {}),
-				).toBeFalsy();
-			});
-		});
-
-		describe('variable sequences', () => {
-			it('should return true for valid sequence', () => {
-				expect(
-					checkAPIInvocation(
-						['k8s_node_name', 'k8s_namespace_name'],
-						variableData,
-						parentDependencyGraph,
-					),
-				).toBeTruthy();
-			});
-
-			it('should return false for invalid sequence', () => {
-				expect(
-					checkAPIInvocation(
-						['k8s_cluster_name', 'k8s_node_name', 'k8s_namespace_name'],
-						variableData,
-						parentDependencyGraph,
-					),
-				).toBeFalsy();
-			});
-
-			it('should return false when variableData is not in sequence', () => {
-				expect(
-					checkAPIInvocation(
-						['deployment_environment', 'service_name', 'endpoint'],
-						variableData,
-						parentDependencyGraph,
-					),
-				).toBeFalsy();
-			});
-		});
-
-		describe('root element behavior', () => {
-			it('should return true for valid root element sequence', () => {
-				expect(
-					checkAPIInvocation(
-						[
-							'deployment_environment',
-							'service_name',
-							'endpoint',
-							'http_status_code',
-						],
-						mockRootElement,
-						parentDependencyGraph,
-					),
-				).toBeTruthy();
-			});
-
-			it('should return true for empty variablesToGetUpdated array', () => {
-				expect(
-					checkAPIInvocation([], mockRootElement, parentDependencyGraph),
-				).toBeTruthy();
-			});
-		});
-	});
-
 	describe('Graph Building Utilities', () => {
 		const { graph } = buildGraphMock;
 		const { variables } = buildDependenciesMock;
@@ -223,10 +130,86 @@ describe('dashboardVariables - utilities and processors', () => {
 					},
 					hasCycle: false,
 					cycleNodes: undefined,
+					transitiveDescendants: {
+						deployment_environment: ['service_name', 'endpoint', 'http_status_code'],
+						endpoint: ['http_status_code'],
+						environment: [],
+						http_status_code: [],
+						k8s_cluster_name: ['k8s_node_name', 'k8s_namespace_name'],
+						k8s_namespace_name: [],
+						k8s_node_name: ['k8s_namespace_name'],
+						service_name: ['endpoint', 'http_status_code'],
+					},
 				};
 
 				expect(buildDependencyGraph(graph)).toEqual(expected);
 			});
+
+			it('should return empty transitiveDescendants for an empty graph', () => {
+				const result = buildDependencyGraph({});
+				expect(result.transitiveDescendants).toEqual({});
+				expect(result.order).toEqual([]);
+				expect(result.hasCycle).toBe(false);
+			});
+
+			it('should compute transitiveDescendants for a linear chain (a -> b -> c)', () => {
+				const linearGraph: VariableGraph = {
+					a: ['b'],
+					b: ['c'],
+					c: [],
+				};
+				const result = buildDependencyGraph(linearGraph);
+				expect(result.transitiveDescendants).toEqual({
+					a: ['b', 'c'],
+					b: ['c'],
+					c: [],
+				});
+			});
+
+			it('should compute transitiveDescendants for a diamond dependency (a -> b, a -> c, b -> d, c -> d)', () => {
+				const diamondGraph: VariableGraph = {
+					a: ['b', 'c'],
+					b: ['d'],
+					c: ['d'],
+					d: [],
+				};
+				const result = buildDependencyGraph(diamondGraph);
+				expect(result.transitiveDescendants.a).toEqual(
+					expect.arrayContaining(['b', 'c', 'd']),
+				);
+				expect(result.transitiveDescendants.a).toHaveLength(3);
+				expect(result.transitiveDescendants.b).toEqual(['d']);
+				expect(result.transitiveDescendants.c).toEqual(['d']);
+				expect(result.transitiveDescendants.d).toEqual([]);
+			});
+
+			it('should handle disconnected components in transitiveDescendants', () => {
+				const disconnectedGraph: VariableGraph = {
+					a: ['b'],
+					b: [],
+					x: ['y'],
+					y: [],
+				};
+				const result = buildDependencyGraph(disconnectedGraph);
+				expect(result.transitiveDescendants.a).toEqual(['b']);
+				expect(result.transitiveDescendants.b).toEqual([]);
+				expect(result.transitiveDescendants.x).toEqual(['y']);
+				expect(result.transitiveDescendants.y).toEqual([]);
+			});
+
+			it('should return empty transitiveDescendants for all leaf nodes', () => {
+				const leafOnlyGraph: VariableGraph = {
+					a: [],
+					b: [],
+					c: [],
+				};
+				const result = buildDependencyGraph(leafOnlyGraph);
+				expect(result.transitiveDescendants).toEqual({
+					a: [],
+					b: [],
+					c: [],
+				});
+			});
 		});
 
 		describe('buildDependencies', () => {

frontend/src/container/DashboardContainer/DashboardVariablesSelection/__test__/mock.ts

@@ -1,36 +1,3 @@
-/* eslint-disable sonarjs/no-duplicate-string */
-export const checkAPIInvocationMock = {
-	variablesToGetUpdated: [],
-	variableData: {
-		name: 'k8s_node_name',
-		key: '4d71d385-beaf-4434-8dbf-c62be68049fc',
-		allSelected: false,
-		customValue: '',
-		description: '',
-		id: '4d71d385-beaf-4434-8dbf-c62be68049fc',
-		modificationUUID: '77233d3c-96d7-4ccb-aa9d-11b04d563068',
-		multiSelect: false,
-		order: 6,
-		queryValue:
-			"SELECT JSONExtractString(labels, 'k8s_node_name') AS k8s_node_name\nFROM signoz_metrics.distributed_time_series_v4_1day\nWHERE metric_name = 'k8s_node_cpu_time' AND JSONExtractString(labels, 'k8s_cluster_name') = {{.k8s_cluster_name}}\nGROUP BY k8s_node_name",
-		selectedValue: 'gke-signoz-saas-si-consumer-bsc-e2sd4-a6d430fa-gvm2',
-		showALLOption: false,
-		sort: 'DISABLED',
-		textboxValue: '',
-		type: 'QUERY',
-	},
-	parentDependencyGraph: {
-		deployment_environment: [],
-		service_name: ['deployment_environment'],
-		endpoint: ['deployment_environment', 'service_name'],
-		http_status_code: ['endpoint'],
-		k8s_cluster_name: [],
-		environment: [],
-		k8s_node_name: ['k8s_cluster_name'],
-		k8s_namespace_name: ['k8s_cluster_name', 'k8s_node_name'],
-	},
-} as any;
-
 export const onUpdateVariableNodeMock = {
 	nodeToUpdate: 'deployment_environment',
 	graph: {

frontend/src/container/DashboardContainer/DashboardVariablesSelection/util.ts

@@ -1,9 +1,16 @@
 import { OptionData } from 'components/NewSelect/types';
-import { isEmpty, isNull } from 'lodash-es';
+import { SOMETHING_WENT_WRONG } from 'constants/api';
+import { textContainsVariableReference } from 'lib/dashboardVariables/variableReference';
+import { isEmpty } from 'lodash-es';
 import {
 	IDashboardVariables,
 	IDependencyData,
 } from 'providers/Dashboard/store/dashboardVariables/dashboardVariablesStoreTypes';
+import {
+	onVariableFetchComplete,
+	onVariableFetchFailure,
+	variableFetchStore,
+} from 'providers/Dashboard/store/variableFetchStore';
 import { IDashboardVariable } from 'types/api/dashboard/getAll';
 
 export function areArraysEqual(
@@ -45,30 +52,16 @@ const getDependentVariablesBasedOnVariableName = (
 	}
 
 	return variables
-		?.map((variable: any) => {
+		.map((variable) => {
 			if (variable.type === 'QUERY') {
-				// Combined pattern for all formats
-				// {{.variable_name}} - original format
-				// $variable_name - dollar prefix format
-				// [[variable_name]] - square bracket format
-				// {{variable_name}} - without dot format
-				const patterns = [
-					`\\{\\{\\s*?\\.${variableName}\\s*?\\}\\}`, // {{.var}}
-					`\\{\\{\\s*${variableName}\\s*\\}\\}`, // {{var}}
-					`\\$${variableName}\\b`, // $var
-					`\\[\\[\\s*${variableName}\\s*\\]\\]`, // [[var]]
-				];
-				const combinedRegex = new RegExp(patterns.join('|'));
-
 				const queryValue = variable.queryValue || '';
-				const dependVarReMatch = queryValue.match(combinedRegex);
-				if (dependVarReMatch !== null && dependVarReMatch.length > 0) {
+				if (textContainsVariableReference(queryValue, variableName)) {
 					return variable.name;
 				}
 			}
 			return null;
 		})
-		.filter((val: string | null) => !isNull(val));
+		.filter((val): val is string => val !== null);
 };
 export type VariableGraph = Record<string, string[]>;
 
@@ -246,10 +239,26 @@ export const buildDependencyGraph = (
 
 	const hasCycle = topologicalOrder.length !== Object.keys(dependencies)?.length;
 
+	// Pre-compute transitive descendants by walking topological order in reverse.
+	// Each node's transitive descendants = direct children + their transitive descendants.
+	const transitiveDescendants: VariableGraph = {};
+	for (let i = topologicalOrder.length - 1; i >= 0; i--) {
+		const node = topologicalOrder[i];
+		const desc = new Set<string>();
+		for (const child of adjList[node] || []) {
+			desc.add(child);
+			for (const d of transitiveDescendants[child] || []) {
+				desc.add(d);
+			}
+		}
+		transitiveDescendants[node] = Array.from(desc);
+	}
+
 	return {
 		order: topologicalOrder,
 		graph: adjList,
 		parentDependencyGraph: buildParentDependencyGraph(adjList),
+		transitiveDescendants,
 		hasCycle,
 		cycleNodes,
 	};
@@ -284,33 +293,6 @@ export const onUpdateVariableNode = (
 	});
 };
 
-export const checkAPIInvocation = (
-	variablesToGetUpdated: string[],
-	variableData: IDashboardVariable,
-	parentDependencyGraph?: VariableGraph,
-): boolean => {
-	if (isEmpty(variableData.name)) {
-		return false;
-	}
-
-	if (isEmpty(parentDependencyGraph)) {
-		return false;
-	}
-
-	// if no dependency then true
-	const haveDependency =
-		parentDependencyGraph?.[variableData.name || '']?.length > 0;
-	if (!haveDependency) {
-		return true;
-	}
-
-	// if variable is in the list and has dependency then check if its the top element in the queue then true else false
-	return (
-		variablesToGetUpdated.length > 0 &&
-		variablesToGetUpdated[0] === variableData.name
-	);
-};
-
 export const getOptionsForDynamicVariable = (
 	normalizedValues: (string | number | boolean)[],
 	relatedValues: string[],
@@ -375,3 +357,130 @@ export const getSelectValue = (
 	}
 	return selectedValue?.toString();
 };
+
+/**
+ * Merges multiple arrays of values into a single deduplicated string array.
+ */
+export function mergeUniqueStrings(
+	...arrays: (string | number | boolean)[][]
+): string[] {
+	return [...new Set(arrays.flatMap((arr) => arr.map((v) => v.toString())))];
+}
+
+function isEligibleFilterVariable(
+	variable: IDashboardVariable,
+	currentVariableId: string,
+): boolean {
+	if (variable.id === currentVariableId) {
+		return false;
+	}
+	if (variable.type !== 'DYNAMIC') {
+		return false;
+	}
+	if (!variable.dynamicVariablesAttribute) {
+		return false;
+	}
+	if (!variable.selectedValue || isEmpty(variable.selectedValue)) {
+		return false;
+	}
+	return !(variable.showALLOption && variable.allSelected);
+}
+
+function formatQueryValue(val: string): string {
+	const numValue = Number(val);
+	if (!Number.isNaN(numValue) && Number.isFinite(numValue)) {
+		return val;
+	}
+	return `'${val.replace(/'/g, "\\'")}'`;
+}
+
+function buildQueryPart(attribute: string, values: string[]): string {
+	const formatted = values.map(formatQueryValue);
+	if (formatted.length === 1) {
+		return `${attribute} = ${formatted[0]}`;
+	}
+	return `${attribute} IN [${formatted.join(', ')}]`;
+}
+
+/**
+ * Builds a filter query string from sibling dynamic variables' selected values.
+ * e.g. `k8s.namespace.name IN ['zeus', 'gene'] AND doc_op_type = 'test'`
+ */
+export function buildExistingDynamicVariableQuery(
+	existingVariables: IDashboardVariables | null,
+	currentVariableId: string,
+	hasDynamicAttribute: boolean,
+): string {
+	if (!existingVariables || !hasDynamicAttribute) {
+		return '';
+	}
+
+	const queryParts: string[] = [];
+
+	for (const variable of Object.values(existingVariables)) {
+		// Skip the current variable being processed
+		if (!isEligibleFilterVariable(variable, currentVariableId)) {
+			continue;
+		}
+
+		const rawValues = Array.isArray(variable.selectedValue)
+			? variable.selectedValue
+			: [variable.selectedValue];
+
+		// Filter out empty values and convert to strings
+		const validValues = rawValues
+			.filter(
+				(val): val is string | number | boolean =>
+					val !== null && val !== undefined && val !== '',
+			)
+			.map((val) => val.toString());
+
+		if (validValues.length > 0 && variable.dynamicVariablesAttribute) {
+			queryParts.push(
+				buildQueryPart(variable.dynamicVariablesAttribute, validValues),
+			);
+		}
+	}
+
+	return queryParts.join(' AND ');
+}
+
+function isVariableInActiveFetchState(state: string | undefined): boolean {
+	return state === 'loading' || state === 'revalidating';
+}
+
+/**
+ * Completes or fails a variable's fetch state machine transition.
+ * No-ops if the variable is not currently in an active fetch state.
+ */
+export function settleVariableFetch(
+	name: string | undefined,
+	outcome: 'complete' | 'failure',
+): void {
+	if (!name) {
+		return;
+	}
+
+	const currentState = variableFetchStore.getSnapshot().states[name];
+	if (!isVariableInActiveFetchState(currentState)) {
+		return;
+	}
+
+	if (outcome === 'complete') {
+		onVariableFetchComplete(name);
+	} else {
+		onVariableFetchFailure(name);
+	}
+}
+
+export function extractErrorMessage(
+	error: { message?: string } | null,
+): string {
+	if (!error) {
+		return SOMETHING_WENT_WRONG;
+	}
+	return (
+		error.message ||
+		'Please make sure configuration is valid and you have required setup and permissions'
+	);
+}

frontend/src/container/DashboardContainer/DashboardVariablesSelection/utils.test.ts

@@ -1,4 +1,31 @@
-import { areArraysEqual, onUpdateVariableNode, VariableGraph } from './util';
+jest.mock('providers/Dashboard/store/variableFetchStore', () => ({
+	variableFetchStore: {
+		getSnapshot: jest.fn(),
+	},
+	onVariableFetchComplete: jest.fn(),
+	onVariableFetchFailure: jest.fn(),
+}));
+
+import {
+	onVariableFetchComplete,
+	onVariableFetchFailure,
+	variableFetchStore,
+} from 'providers/Dashboard/store/variableFetchStore';
+import { IDashboardVariable } from 'types/api/dashboard/getAll';
+
+import {
+	areArraysEqual,
+	buildExistingDynamicVariableQuery,
+	extractErrorMessage,
+	mergeUniqueStrings,
+	onUpdateVariableNode,
+	settleVariableFetch,
+	VariableGraph,
+} from './util';
+
+// ────────────────────────────────────────────────────────────────
+// Existing tests
+// ────────────────────────────────────────────────────────────────
 
 describe('areArraysEqual', () => {
 	it('should return true for equal arrays with same order', () => {
@@ -149,3 +176,348 @@ describe('onUpdateVariableNode', () => {
 		expect(visited).toEqual(['namespace', 'service', 'pod']);
 	});
 });
+
+// ────────────────────────────────────────────────────────────────
+// New tests for functions added in recent commits
+// ────────────────────────────────────────────────────────────────
+
+function makeDynamicVar(
+	overrides: Partial<IDashboardVariable> & { id: string },
+): IDashboardVariable {
+	return {
+		name: overrides.id,
+		description: '',
+		type: 'DYNAMIC',
+		sort: 'DISABLED',
+		multiSelect: false,
+		showALLOption: false,
+		allSelected: false,
+		dynamicVariablesAttribute: 'attr',
+		selectedValue: 'some-value',
+		...overrides,
+	} as IDashboardVariable;
+}
+
+describe('mergeUniqueStrings', () => {
+	it('should merge two arrays and deduplicate', () => {
+		expect(mergeUniqueStrings(['a', 'b'], ['b', 'c'])).toEqual(['a', 'b', 'c']);
+	});
+
+	it('should convert numbers and booleans to strings', () => {
+		expect(mergeUniqueStrings([1, true, 'hello'], [2, false])).toEqual([
+			'1',
+			'true',
+			'hello',
+			'2',
+			'false',
+		]);
+	});
+
+	it('should deduplicate when number and its string form both appear', () => {
+		expect(mergeUniqueStrings([42], ['42'])).toEqual(['42']);
+	});
+
+	it('should handle a single array', () => {
+		expect(mergeUniqueStrings(['x', 'y', 'x'])).toEqual(['x', 'y']);
+	});
+
+	it('should handle three or more arrays', () => {
+		expect(mergeUniqueStrings(['a'], ['b'], ['c'], ['a', 'c'])).toEqual([
+			'a',
+			'b',
+			'c',
+		]);
+	});
+
+	it('should return empty array when no arrays are provided', () => {
+		expect(mergeUniqueStrings()).toEqual([]);
+	});
+
+	it('should return empty array when all input arrays are empty', () => {
+		expect(mergeUniqueStrings([], [], [])).toEqual([]);
+	});
+
+	it('should preserve order of first occurrence', () => {
+		expect(mergeUniqueStrings(['c', 'a'], ['b', 'a'])).toEqual(['c', 'a', 'b']);
+	});
+});
+
+describe('buildExistingDynamicVariableQuery', () => {
+	// --- Guard clauses ---
+	it('should return empty string when existingVariables is null', () => {
+		expect(buildExistingDynamicVariableQuery(null, 'v1', true)).toBe('');
+	});
+
+	it('should return empty string when hasDynamicAttribute is false', () => {
+		const variables = { v2: makeDynamicVar({ id: 'v2' }) };
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', false)).toBe('');
+	});
+
+	// --- Eligibility filtering ---
+	it('should skip the current variable (same id)', () => {
+		const variables = {
+			v1: makeDynamicVar({
+				id: 'v1',
+				dynamicVariablesAttribute: 'ns',
+				selectedValue: 'prod',
+			}),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe('');
+	});
+
+	it('should skip non-DYNAMIC variables', () => {
+		const variables = {
+			v2: makeDynamicVar({ id: 'v2', type: 'QUERY' as any }),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe('');
+	});
+
+	it('should skip variables without dynamicVariablesAttribute', () => {
+		const variables = {
+			v2: makeDynamicVar({
+				id: 'v2',
+				dynamicVariablesAttribute: undefined,
+				selectedValue: 'val',
+			}),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe('');
+	});
+
+	it('should skip variables with null selectedValue', () => {
+		const variables = {
+			v2: makeDynamicVar({ id: 'v2', selectedValue: null }),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe('');
+	});
+
+	it('should skip variables with empty string selectedValue', () => {
+		const variables = {
+			v2: makeDynamicVar({ id: 'v2', selectedValue: '' }),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe('');
+	});
+
+	it('should skip variables with empty array selectedValue', () => {
+		const variables = {
+			v2: makeDynamicVar({ id: 'v2', selectedValue: [] }),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe('');
+	});
+
+	it('should skip variables where showALLOption and allSelected are both true', () => {
+		const variables = {
+			v2: makeDynamicVar({
+				id: 'v2',
+				showALLOption: true,
+				allSelected: true,
+				dynamicVariablesAttribute: 'ns',
+				selectedValue: 'prod',
+			}),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe('');
+	});
+
+	it('should include variable with showALLOption true but allSelected false', () => {
+		const variables = {
+			v2: makeDynamicVar({
+				id: 'v2',
+				showALLOption: true,
+				allSelected: false,
+				dynamicVariablesAttribute: 'ns',
+				selectedValue: 'prod',
+			}),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe(
+			"ns = 'prod'",
+		);
+	});
+
+	// --- Value formatting ---
+	it('should quote string values in the query', () => {
+		const variables = {
+			v2: makeDynamicVar({
+				id: 'v2',
+				dynamicVariablesAttribute: 'k8s.namespace.name',
+				selectedValue: 'zeus',
+			}),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe(
+			"k8s.namespace.name = 'zeus'",
+		);
+	});
+
+	it('should leave numeric values unquoted', () => {
+		const variables = {
+			v2: makeDynamicVar({
+				id: 'v2',
+				dynamicVariablesAttribute: 'http.status_code',
+				selectedValue: '200',
+			}),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe(
+			'http.status_code = 200',
+		);
+	});
+
+	it('should escape single quotes in string values', () => {
+		const variables = {
+			v2: makeDynamicVar({
+				id: 'v2',
+				dynamicVariablesAttribute: 'user.name',
+				selectedValue: "O'Brien",
+			}),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe(
+			"user.name = 'O\\'Brien'",
+		);
+	});
+
+	it('should build an IN clause for array selectedValue with multiple items', () => {
+		const variables = {
+			v2: makeDynamicVar({
+				id: 'v2',
+				dynamicVariablesAttribute: 'k8s.namespace.name',
+				selectedValue: ['zeus', 'gene'],
+			}),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe(
+			"k8s.namespace.name IN ['zeus', 'gene']",
+		);
+	});
+
+	it('should handle mix of numeric and string values in IN clause', () => {
+		const variables = {
+			v2: makeDynamicVar({
+				id: 'v2',
+				dynamicVariablesAttribute: 'http.status_code',
+				selectedValue: ['200', 'unknown'],
+			}),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe(
+			"http.status_code IN [200, 'unknown']",
+		);
+	});
+
+	it('should filter out empty string values from array', () => {
+		const variables = {
+			v2: makeDynamicVar({
+				id: 'v2',
+				dynamicVariablesAttribute: 'region',
+				selectedValue: ['us-east', '', 'eu-west'],
+			}),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe(
+			"region IN ['us-east', 'eu-west']",
+		);
+	});
+
+	// --- Multiple siblings ---
+	it('should join multiple sibling variables with AND', () => {
+		const variables = {
+			v2: makeDynamicVar({
+				id: 'v2',
+				dynamicVariablesAttribute: 'k8s.namespace.name',
+				selectedValue: ['zeus', 'gene'],
+			}),
+			v3: makeDynamicVar({
+				id: 'v3',
+				dynamicVariablesAttribute: 'doc_op_type',
+				selectedValue: 'test',
+			}),
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe(
+			"k8s.namespace.name IN ['zeus', 'gene'] AND doc_op_type = 'test'",
+		);
+	});
+
+	it('should return empty string when no variables are eligible', () => {
+		const variables = {
+			v1: makeDynamicVar({ id: 'v1' }), // same as current — skipped
+			v2: makeDynamicVar({ id: 'v2', type: 'QUERY' as any }), // not DYNAMIC
+			v3: makeDynamicVar({ id: 'v3', selectedValue: null }), // no value
+		};
+		expect(buildExistingDynamicVariableQuery(variables, 'v1', true)).toBe('');
+	});
+});
+
+describe('settleVariableFetch', () => {
+	const mockGetSnapshot = variableFetchStore.getSnapshot as jest.Mock;
+	const mockComplete = onVariableFetchComplete as jest.Mock;
+	const mockFailure = onVariableFetchFailure as jest.Mock;
+
+	beforeEach(() => {
+		jest.clearAllMocks();
+	});
+
+	it('should no-op when name is undefined', () => {
+		settleVariableFetch(undefined, 'complete');
+		expect(mockGetSnapshot).not.toHaveBeenCalled();
+		expect(mockComplete).not.toHaveBeenCalled();
+		expect(mockFailure).not.toHaveBeenCalled();
+	});
+
+	it.each(['idle', 'waiting', 'error', undefined] as const)(
+		'should no-op when variable state is %s',
+		(state) => {
+			mockGetSnapshot.mockReturnValue({ states: { myVar: state } });
+			settleVariableFetch('myVar', 'complete');
+			expect(mockComplete).not.toHaveBeenCalled();
+			expect(mockFailure).not.toHaveBeenCalled();
+		},
+	);
+
+	it('should call onVariableFetchComplete when state is loading and outcome is complete', () => {
+		mockGetSnapshot.mockReturnValue({ states: { myVar: 'loading' } });
+		settleVariableFetch('myVar', 'complete');
+		expect(mockComplete).toHaveBeenCalledWith('myVar');
+		expect(mockFailure).not.toHaveBeenCalled();
+	});
+
+	it('should call onVariableFetchComplete when state is revalidating and outcome is complete', () => {
+		mockGetSnapshot.mockReturnValue({ states: { myVar: 'revalidating' } });
+		settleVariableFetch('myVar', 'complete');
+		expect(mockComplete).toHaveBeenCalledWith('myVar');
+		expect(mockFailure).not.toHaveBeenCalled();
+	});
+
+	it('should call onVariableFetchFailure when state is loading and outcome is failure', () => {
+		mockGetSnapshot.mockReturnValue({ states: { myVar: 'loading' } });
+		settleVariableFetch('myVar', 'failure');
+		expect(mockFailure).toHaveBeenCalledWith('myVar');
+		expect(mockComplete).not.toHaveBeenCalled();
+	});
+
+	it('should call onVariableFetchFailure when state is revalidating and outcome is failure', () => {
+		mockGetSnapshot.mockReturnValue({ states: { myVar: 'revalidating' } });
+		settleVariableFetch('myVar', 'failure');
+		expect(mockFailure).toHaveBeenCalledWith('myVar');
+		expect(mockComplete).not.toHaveBeenCalled();
+	});
+});
+
+describe('extractErrorMessage', () => {
+	const FALLBACK_MESSAGE =
+		'Please make sure configuration is valid and you have required setup and permissions';
+
+	it('should return SOMETHING_WENT_WRONG when error is null', () => {
+		expect(extractErrorMessage(null)).toBe('Something went wrong');
+	});
+
+	it('should return the error message when it exists', () => {
+		expect(extractErrorMessage({ message: 'Query timeout' })).toBe(
+			'Query timeout',
+		);
+	});
+
+	it('should return fallback when error object has no message property', () => {
+		expect(extractErrorMessage({})).toBe(FALLBACK_MESSAGE);
+	});
+
+	it('should return fallback when error.message is empty string', () => {
+		expect(extractErrorMessage({ message: '' })).toBe(FALLBACK_MESSAGE);
+	});
+
+	it('should return fallback when error.message is undefined', () => {
+		expect(extractErrorMessage({ message: undefined })).toBe(FALLBACK_MESSAGE);
+	});
+});

frontend/src/container/DashboardContainer/DashboardVariablesSelection/variableSelectStrategy/variableSelectStrategyTypes.ts

@@ -1,17 +1,11 @@
-import { IDashboardVariable } from 'types/api/dashboard/getAll';
+import { VariableItemProps } from '../VariableItem';
 
 export interface VariableSelectStrategy {
 	handleChange(params: {
 		value: string | string[];
-		variableData: IDashboardVariable;
+		variableData: VariableItemProps['variableData'];
+		onValueUpdate: VariableItemProps['onValueUpdate'];
 		optionsData: (string | number | boolean)[];
 		allAvailableOptionStrings: string[];
-		onValueUpdate: (
-			name: string,
-			id: string,
-			value: IDashboardVariable['selectedValue'],
-			allSelected: boolean,
-			haveCustomValuesSelected?: boolean,
-		) => void;
 	}): void;
 }

frontend/src/container/DashboardContainer/__test__/DynamicVariableDefaultBehavior.test.tsx

@@ -17,6 +17,19 @@ import { IDashboardVariable } from 'types/api/dashboard/getAll';
 
 import DynamicVariableInput from '../DashboardVariablesSelection/DynamicVariableInput';
 
+// Mock useVariableFetchState to return "fetching" state so useQuery is enabled
+jest.mock('hooks/dashboard/useVariableFetchState', () => ({
+	useVariableFetchState: (): Record<string, unknown> => ({
+		variableFetchCycleId: 0,
+		variableFetchState: 'loading',
+		isVariableSettled: false,
+		isVariableFetching: true,
+		hasVariableFetchedOnce: false,
+		isVariableWaitingForDependencies: false,
+		variableDependencyWaitMessage: '',
+	}),
+}));
+
 // Mock the getFieldValues API
 jest.mock('api/dynamicVariables/getFieldValues', () => ({
 	getFieldValues: jest.fn(),
@@ -95,7 +108,7 @@ describe('Dynamic Variable Default Behavior', () => {
 						}
 					}
 					if (queryFn) {
-						queryFn();
+						queryFn({ signal: undefined });
 					}
 				}
 			}, [enabled, variableName, dynamicVarsKey]); // Only depend on enabled/keys
@@ -234,6 +247,7 @@ describe('Dynamic Variable Default Behavior', () => {
 					'2023-01-01T00:00:00Z',
 					'2023-01-02T00:00:00Z',
 					'',
+					undefined, // signal
 				);
 			});
 
@@ -487,6 +501,7 @@ describe('Dynamic Variable Default Behavior', () => {
 					'2023-01-01T00:00:00Z',
 					'2023-01-02T00:00:00Z',
 					'',
+					undefined, // signal
 				);
 			});
 

frontend/src/container/DashboardContainer/__test__/IntegrationTests.test.tsx

@@ -49,15 +49,11 @@ const mockDashboard = {
 // Mock the dashboard provider with stable functions to prevent infinite loops
 const mockSetSelectedDashboard = jest.fn();
 const mockUpdateLocalStorageDashboardVariables = jest.fn();
-const mockSetVariablesToGetUpdated = jest.fn();
-
 jest.mock('providers/Dashboard/Dashboard', () => ({
 	useDashboard: (): any => ({
 		selectedDashboard: mockDashboard,
 		setSelectedDashboard: mockSetSelectedDashboard,
 		updateLocalStorageDashboardVariables: mockUpdateLocalStorageDashboardVariables,
-		variablesToGetUpdated: ['env'], // Stable initial value
-		setVariablesToGetUpdated: mockSetVariablesToGetUpdated,
 	}),
 }));
 

frontend/src/container/DashboardContainer/visualization/charts/BarChart/BarChart.tsx

@@ -0,0 +1,45 @@
+import { useCallback } from 'react';
+import ChartWrapper from 'container/DashboardContainer/visualization/charts/ChartWrapper/ChartWrapper';
+import BarChartTooltip from 'lib/uPlotV2/components/Tooltip/BarChartTooltip';
+import {
+	BarTooltipProps,
+	TooltipRenderArgs,
+} from 'lib/uPlotV2/components/types';
+
+import { useBarChartStacking } from '../../hooks/useBarChartStacking';
+import { BarChartProps } from '../types';
+
+export default function BarChart(props: BarChartProps): JSX.Element {
+	const { children, isStackedBarChart, config, data, ...rest } = props;
+
+	const chartData = useBarChartStacking({
+		data,
+		isStackedBarChart,
+		config,
+	});
+
+	const renderTooltip = useCallback(
+		(props: TooltipRenderArgs): React.ReactNode => {
+			const tooltipProps: BarTooltipProps = {
+				...props,
+				timezone: rest.timezone,
+				yAxisUnit: rest.yAxisUnit,
+				decimalPrecision: rest.decimalPrecision,
+				isStackedBarChart: isStackedBarChart,
+			};
+			return <BarChartTooltip {...tooltipProps} />;
+		},
+		[rest.timezone, rest.yAxisUnit, rest.decimalPrecision, isStackedBarChart],
+	);
+
+	return (
+		<ChartWrapper
+			{...rest}
+			config={config}
+			data={chartData}
+			renderTooltip={renderTooltip}
+		>
+			{children}
+		</ChartWrapper>
+	);
+}

frontend/src/container/DashboardContainer/visualization/charts/utils/__tests__/stackUtils.test.ts

@@ -0,0 +1,117 @@
+import { AlignedData } from 'uplot';
+
+import { getInitialStackedBands, stack } from '../stackUtils';
+
+describe('stackUtils', () => {
+	describe('stack', () => {
+		const neverOmit = (): boolean => false;
+
+		it('preserves time axis as first row', () => {
+			const data: AlignedData = [
+				[100, 200, 300],
+				[1, 2, 3],
+				[4, 5, 6],
+			];
+			const { data: result } = stack(data, neverOmit);
+			expect(result[0]).toEqual([100, 200, 300]);
+		});
+
+		it('stacks value series cumulatively (last = raw, first = total)', () => {
+			// Time, then 3 value series. Stack order: last series stays raw, then we add upward.
+			const data: AlignedData = [
+				[0, 1, 2],
+				[1, 2, 3], // series 1
+				[4, 5, 6], // series 2
+				[7, 8, 9], // series 3
+			];
+			const { data: result } = stack(data, neverOmit);
+			// result[1] = s1+s2+s3, result[2] = s2+s3, result[3] = s3
+			expect(result[1]).toEqual([12, 15, 18]); // 1+4+7, 2+5+8, 3+6+9
+			expect(result[2]).toEqual([11, 13, 15]); // 4+7, 5+8, 6+9
+			expect(result[3]).toEqual([7, 8, 9]);
+		});
+
+		it('treats null values as 0 when stacking', () => {
+			const data: AlignedData = [
+				[0, 1],
+				[1, null],
+				[null, 10],
+			];
+			const { data: result } = stack(data, neverOmit);
+			expect(result[1]).toEqual([1, 10]); // total
+			expect(result[2]).toEqual([0, 10]); // last series with null→0
+		});
+
+		it('copies omitted series as-is without accumulating', () => {
+			// Omit series 2 (index 2); series 1 and 3 are stacked.
+			const data: AlignedData = [
+				[0, 1],
+				[10, 20], // series 1
+				[100, 200], // series 2 - omitted
+				[1, 2], // series 3
+			];
+			const omitSeries2 = (i: number): boolean => i === 2;
+			const { data: result } = stack(data, omitSeries2);
+			// series 3 raw: [1, 2]; series 2 omitted: [100, 200] as-is; series 1 stacked with s3: [11, 22]
+			expect(result[1]).toEqual([11, 22]); // 10+1, 20+2
+			expect(result[2]).toEqual([100, 200]); // copied, not stacked
+			expect(result[3]).toEqual([1, 2]);
+		});
+
+		it('returns bands between consecutive visible series when none omitted', () => {
+			const data: AlignedData = [
+				[0, 1],
+				[1, 2],
+				[3, 4],
+				[5, 6],
+			];
+			const { bands } = stack(data, neverOmit);
+			expect(bands).toEqual([{ series: [1, 2] }, { series: [2, 3] }]);
+		});
+
+		it('returns bands only between visible series when some are omitted', () => {
+			// 4 value series; omit index 2. Visible: 1, 3, 4. Bands: [1,3], [3,4]
+			const data: AlignedData = [[0], [1], [2], [3], [4]];
+			const omitSeries2 = (i: number): boolean => i === 2;
+			const { bands } = stack(data, omitSeries2);
+			expect(bands).toEqual([{ series: [1, 3] }, { series: [3, 4] }]);
+		});
+
+		it('returns empty bands when only one value series', () => {
+			const data: AlignedData = [
+				[0, 1],
+				[1, 2],
+			];
+			const { bands } = stack(data, neverOmit);
+			expect(bands).toEqual([]);
+		});
+	});
+
+	describe('getInitialStackedBands', () => {
+		it('returns one band between each consecutive pair for seriesCount 3', () => {
+			expect(getInitialStackedBands(3)).toEqual([
+				{ series: [1, 2] },
+				{ series: [2, 3] },
+			]);
+		});
+
+		it('returns empty array for seriesCount 0 or 1', () => {
+			expect(getInitialStackedBands(0)).toEqual([]);
+			expect(getInitialStackedBands(1)).toEqual([]);
+		});
+
+		it('returns single band for seriesCount 2', () => {
+			expect(getInitialStackedBands(2)).toEqual([{ series: [1, 2] }]);
+		});
+
+		it('returns bands [1,2], [2,3], ..., [n-1, n] for seriesCount n', () => {
+			const bands = getInitialStackedBands(5);
+			expect(bands).toEqual([
+				{ series: [1, 2] },
+				{ series: [2, 3] },
+				{ series: [3, 4] },
+				{ series: [4, 5] },
+			]);
+		});
+	});
+});

frontend/src/container/DashboardContainer/visualization/charts/utils/stackSeriesUtils.ts

@@ -0,0 +1,116 @@
+import uPlot, { AlignedData } from 'uplot';
+
+/**
+ * Stack data cumulatively (top-down: first series = top, last = bottom).
+ * When `omit(seriesIndex)` returns true, that series is excluded from stacking.
+ */
+export function stackSeries(
+	data: AlignedData,
+	omit: (seriesIndex: number) => boolean,
+): { data: AlignedData; bands: uPlot.Band[] } {
+	const timeAxis = data[0];
+	const pointCount = timeAxis.length;
+	const valueSeriesCount = data.length - 1; // exclude time axis
+
+	const stackedSeries = buildStackedSeries({
+		data,
+		valueSeriesCount,
+		pointCount,
+		omit,
+	});
+	const bands = buildFillBands(valueSeriesCount + 1, omit); // +1 for 1-based series indices
+
+	return {
+		data: [timeAxis, ...stackedSeries] as AlignedData,
+		bands,
+	};
+}
+
+interface BuildStackedSeriesParams {
+	data: AlignedData;
+	valueSeriesCount: number;
+	pointCount: number;
+	omit: (seriesIndex: number) => boolean;
+}
+
+/**
+ * Accumulate from last series upward: last series = raw values, first = total.
+ * Omitted series are copied as-is (no accumulation).
+ */
+function buildStackedSeries({
+	data,
+	valueSeriesCount,
+	pointCount,
+	omit,
+}: BuildStackedSeriesParams): (number | null)[][] {
+	const stackedSeries: (number | null)[][] = Array(valueSeriesCount);
+	const cumulativeSums = Array(pointCount).fill(0) as number[];
+
+	for (let seriesIndex = valueSeriesCount; seriesIndex >= 1; seriesIndex--) {
+		const rawValues = data[seriesIndex] as (number | null)[];
+
+		if (omit(seriesIndex)) {
+			stackedSeries[seriesIndex - 1] = rawValues;
+		} else {
+			stackedSeries[seriesIndex - 1] = rawValues.map((rawValue, pointIndex) => {
+				const numericValue = rawValue == null ? 0 : Number(rawValue);
+				return (cumulativeSums[pointIndex] += numericValue);
+			});
+		}
+	}
+
+	return stackedSeries;
+}
+
+/**
+ * Bands define fill between consecutive visible series for stacked appearance.
+ * uPlot format: [upperSeriesIdx, lowerSeriesIdx].
+ */
+function buildFillBands(
+	seriesLength: number,
+	omit: (seriesIndex: number) => boolean,
+): uPlot.Band[] {
+	const bands: uPlot.Band[] = [];
+
+	for (let seriesIndex = 1; seriesIndex < seriesLength; seriesIndex++) {
+		if (omit(seriesIndex)) {
+			continue;
+		}
+		const nextVisibleSeriesIndex = findNextVisibleSeriesIndex(
+			seriesLength,
+			seriesIndex,
+			omit,
+		);
+		if (nextVisibleSeriesIndex !== -1) {
+			bands.push({ series: [seriesIndex, nextVisibleSeriesIndex] });
+		}
+	}
+
+	return bands;
+}
+
+function findNextVisibleSeriesIndex(
+	seriesLength: number,
+	afterIndex: number,
+	omit: (seriesIndex: number) => boolean,
+): number {
+	for (let i = afterIndex + 1; i < seriesLength; i++) {
+		if (!omit(i)) {
+			return i;
+		}
+	}
+	return -1;
+}
+
+/**
+ * Returns band indices for initial stacked state (no series omitted).
+ * Top-down: first series at top, band fills between consecutive series.
+ * uPlot band format: [upperSeriesIdx, lowerSeriesIdx].
+ */
+export function getInitialStackedBands(seriesCount: number): uPlot.Band[] {
+	const bands: uPlot.Band[] = [];
+	for (let seriesIndex = 1; seriesIndex < seriesCount; seriesIndex++) {
+		bands.push({ series: [seriesIndex, seriesIndex + 1] });
+	}
+	return bands;
+}

frontend/src/container/DashboardContainer/visualization/charts/utils/stackUtils.ts

@@ -0,0 +1,116 @@
+import uPlot, { AlignedData } from 'uplot';
+
+/**
+ * Stack data cumulatively (top-down: first series = top, last = bottom).
+ * When `omit(seriesIndex)` returns true, that series is excluded from stacking.
+ */
+export function stack(
+	data: AlignedData,
+	omit: (seriesIndex: number) => boolean,
+): { data: AlignedData; bands: uPlot.Band[] } {
+	const timeAxis = data[0];
+	const pointCount = timeAxis.length;
+	const valueSeriesCount = data.length - 1; // exclude time axis
+
+	const stackedSeries = buildStackedSeries({
+		data,
+		valueSeriesCount,
+		pointCount,
+		omit,
+	});
+	const bands = buildFillBands(valueSeriesCount + 1, omit); // +1 for 1-based series indices
+
+	return {
+		data: [timeAxis, ...stackedSeries] as AlignedData,
+		bands,
+	};
+}
+
+interface BuildStackedSeriesParams {
+	data: AlignedData;
+	valueSeriesCount: number;
+	pointCount: number;
+	omit: (seriesIndex: number) => boolean;
+}
+
+/**
+ * Accumulate from last series upward: last series = raw values, first = total.
+ * Omitted series are copied as-is (no accumulation).
+ */
+function buildStackedSeries({
+	data,
+	valueSeriesCount,
+	pointCount,
+	omit,
+}: BuildStackedSeriesParams): (number | null)[][] {
+	const stackedSeries: (number | null)[][] = Array(valueSeriesCount);
+	const cumulativeSums = Array(pointCount).fill(0) as number[];
+
+	for (let seriesIndex = valueSeriesCount; seriesIndex >= 1; seriesIndex--) {
+		const rawValues = data[seriesIndex] as (number | null)[];
+
+		if (omit(seriesIndex)) {
+			stackedSeries[seriesIndex - 1] = rawValues;
+		} else {
+			stackedSeries[seriesIndex - 1] = rawValues.map((rawValue, pointIndex) => {
+				const numericValue = rawValue == null ? 0 : Number(rawValue);
+				return (cumulativeSums[pointIndex] += numericValue);
+			});
+		}
+	}
+
+	return stackedSeries;
+}
+
+/**
+ * Bands define fill between consecutive visible series for stacked appearance.
+ * uPlot format: [upperSeriesIdx, lowerSeriesIdx].
+ */
+function buildFillBands(
+	seriesLength: number,
+	omit: (seriesIndex: number) => boolean,
+): uPlot.Band[] {
+	const bands: uPlot.Band[] = [];
+
+	for (let seriesIndex = 1; seriesIndex < seriesLength; seriesIndex++) {
+		if (omit(seriesIndex)) {
+			continue;
+		}
+		const nextVisibleSeriesIndex = findNextVisibleSeriesIndex(
+			seriesLength,
+			seriesIndex,
+			omit,
+		);
+		if (nextVisibleSeriesIndex !== -1) {
+			bands.push({ series: [seriesIndex, nextVisibleSeriesIndex] });
+		}
+	}
+
+	return bands;
+}
+
+function findNextVisibleSeriesIndex(
+	seriesLength: number,
+	afterIndex: number,
+	omit: (seriesIndex: number) => boolean,
+): number {
+	for (let i = afterIndex + 1; i < seriesLength; i++) {
+		if (!omit(i)) {
+			return i;
+		}
+	}
+	return -1;
+}
+
+/**
+ * Returns band indices for initial stacked state (no series omitted).
+ * Top-down: first series at top, band fills between consecutive series.
+ * uPlot band format: [upperSeriesIdx, lowerSeriesIdx].
+ */
+export function getInitialStackedBands(seriesCount: number): uPlot.Band[] {
+	const bands: uPlot.Band[] = [];
+	for (let seriesIndex = 1; seriesIndex < seriesCount; seriesIndex++) {
+		bands.push({ series: [seriesIndex, seriesIndex + 1] });
+	}
+	return bands;
+}

frontend/src/container/DashboardContainer/visualization/hooks/__tests__/useBarChartStacking.test.ts

@@ -0,0 +1,313 @@
+import { renderHook } from '@testing-library/react';
+import uPlot from 'uplot';
+
+import type { UseBarChartStackingParams } from '../useBarChartStacking';
+import { useBarChartStacking } from '../useBarChartStacking';
+
+type MockConfig = { addHook: jest.Mock };
+
+function asConfig(c: MockConfig): UseBarChartStackingParams['config'] {
+	return (c as unknown) as UseBarChartStackingParams['config'];
+}
+
+function createMockConfig(): {
+	config: MockConfig;
+	invokeSetData: (plot: uPlot) => void;
+	invokeSetSeries: (
+		plot: uPlot,
+		seriesIndex: number | null,
+		opts: Partial<uPlot.Series> & { focus?: boolean },
+	) => void;
+	removeSetData: jest.Mock;
+	removeSetSeries: jest.Mock;
+} {
+	let setDataHandler: ((plot: uPlot) => void) | null = null;
+	let setSeriesHandler:
+		| ((plot: uPlot, seriesIndex: number | null, opts: uPlot.Series) => void)
+		| null = null;
+
+	const removeSetData = jest.fn();
+	const removeSetSeries = jest.fn();
+
+	const addHook = jest.fn(
+		(
+			hookName: string,
+			handler: (plot: uPlot, ...args: unknown[]) => void,
+		): (() => void) => {
+			if (hookName === 'setData') {
+				setDataHandler = handler as (plot: uPlot) => void;
+				return removeSetData;
+			}
+			if (hookName === 'setSeries') {
+				setSeriesHandler = handler as (
+					plot: uPlot,
+					seriesIndex: number | null,
+					opts: uPlot.Series,
+				) => void;
+				return removeSetSeries;
+			}
+			return jest.fn();
+		},
+	);
+
+	const config: MockConfig = { addHook };
+
+	const invokeSetData = (plot: uPlot): void => {
+		setDataHandler?.(plot);
+	};
+
+	const invokeSetSeries = (
+		plot: uPlot,
+		seriesIndex: number | null,
+		opts: Partial<uPlot.Series> & { focus?: boolean },
+	): void => {
+		setSeriesHandler?.(plot, seriesIndex, opts as uPlot.Series);
+	};
+
+	return {
+		config,
+		invokeSetData,
+		invokeSetSeries,
+		removeSetData,
+		removeSetSeries,
+	};
+}
+
+function createMockPlot(overrides: Partial<uPlot> = {}): uPlot {
+	return ({
+		data: [
+			[0, 1, 2],
+			[1, 2, 3],
+			[4, 5, 6],
+		],
+		series: [{ show: true }, { show: true }, { show: true }],
+		delBand: jest.fn(),
+		addBand: jest.fn(),
+		setData: jest.fn(),
+		...overrides,
+	} as unknown) as uPlot;
+}
+
+describe('useBarChartStacking', () => {
+	it('returns data as-is when isStackedBarChart is false', () => {
+		const data: uPlot.AlignedData = [
+			[100, 200],
+			[1, 2],
+			[3, 4],
+		];
+		const { result } = renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: false,
+				config: null,
+			}),
+		);
+		expect(result.current).toBe(data);
+	});
+
+	it('returns data as-is when config is null and isStackedBarChart is true', () => {
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[1, 2],
+			[4, 5],
+		];
+		const { result } = renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: null,
+			}),
+		);
+		// Still returns stacked data (computed in useMemo); no hooks registered
+		expect(result.current[0]).toEqual([0, 1]);
+		expect(result.current[1]).toEqual([5, 7]); // stacked
+		expect(result.current[2]).toEqual([4, 5]);
+	});
+
+	it('returns stacked data when isStackedBarChart is true and multiple value series', () => {
+		const data: uPlot.AlignedData = [
+			[0, 1, 2],
+			[1, 2, 3],
+			[4, 5, 6],
+			[7, 8, 9],
+		];
+		const { result } = renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: null,
+			}),
+		);
+		expect(result.current[0]).toEqual([0, 1, 2]);
+		expect(result.current[1]).toEqual([12, 15, 18]); // s1+s2+s3
+		expect(result.current[2]).toEqual([11, 13, 15]); // s2+s3
+		expect(result.current[3]).toEqual([7, 8, 9]);
+	});
+
+	it('returns data as-is when only one value series (no stacking needed)', () => {
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[1, 2],
+		];
+		const { result } = renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: null,
+			}),
+		);
+		expect(result.current).toEqual(data);
+	});
+
+	it('registers setData and setSeries hooks when isStackedBarChart and config provided', () => {
+		const { config } = createMockConfig();
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[1, 2],
+			[3, 4],
+		];
+
+		renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: asConfig(config),
+			}),
+		);
+
+		expect(config.addHook).toHaveBeenCalledWith('setData', expect.any(Function));
+		expect(config.addHook).toHaveBeenCalledWith(
+			'setSeries',
+			expect.any(Function),
+		);
+	});
+
+	it('does not register hooks when isStackedBarChart is false', () => {
+		const { config } = createMockConfig();
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[1, 2],
+			[3, 4],
+		];
+
+		renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: false,
+				config: asConfig(config),
+			}),
+		);
+
+		expect(config.addHook).not.toHaveBeenCalled();
+	});
+
+	it('calls cleanup when unmounted', () => {
+		const { config, removeSetData, removeSetSeries } = createMockConfig();
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[1, 2],
+			[3, 4],
+		];
+
+		const { unmount } = renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: asConfig(config),
+			}),
+		);
+
+		unmount();
+
+		expect(removeSetData).toHaveBeenCalled();
+		expect(removeSetSeries).toHaveBeenCalled();
+	});
+
+	it('re-stacks and updates plot when setData hook is invoked', () => {
+		const { config, invokeSetData } = createMockConfig();
+		const data: uPlot.AlignedData = [
+			[0, 1, 2],
+			[1, 2, 3],
+			[4, 5, 6],
+		];
+		const plot = createMockPlot({
+			data: [
+				[0, 1, 2],
+				[5, 7, 9],
+				[4, 5, 6],
+			],
+		});
+
+		renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: asConfig(config),
+			}),
+		);
+
+		invokeSetData(plot);
+
+		expect(plot.delBand).toHaveBeenCalledWith(null);
+		expect(plot.addBand).toHaveBeenCalled();
+		expect(plot.setData).toHaveBeenCalledWith(
+			expect.arrayContaining([
+				[0, 1, 2],
+				expect.any(Array), // stacked row 1
+				expect.any(Array), // stacked row 2
+			]),
+		);
+	});
+
+	it('re-stacks when setSeries hook is invoked (e.g. legend toggle)', () => {
+		const { config, invokeSetSeries } = createMockConfig();
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[10, 20],
+			[5, 10],
+		];
+		// Plot data must match unstacked length so canApplyStacking passes
+		const plot = createMockPlot({
+			data: [
+				[0, 1],
+				[15, 30],
+				[5, 10],
+			],
+		});
+
+		renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: asConfig(config),
+			}),
+		);
+
+		invokeSetSeries(plot, 1, { show: false });
+
+		expect(plot.setData).toHaveBeenCalled();
+	});
+
+	it('does not re-stack when setSeries is called with focus option', () => {
+		const { config, invokeSetSeries } = createMockConfig();
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[1, 2],
+			[3, 4],
+		];
+		const plot = createMockPlot();
+
+		renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: asConfig(config),
+			}),
+		);
+
+		(plot.setData as jest.Mock).mockClear();
+		invokeSetSeries(plot, 1, { focus: true } as uPlot.Series);
+
+		expect(plot.setData).not.toHaveBeenCalled();
+	});
+});

frontend/src/container/DashboardContainer/visualization/hooks/useBarChartStacking.ts

@@ -0,0 +1,125 @@
+import {
+	MutableRefObject,
+	useCallback,
+	useLayoutEffect,
+	useMemo,
+	useRef,
+} from 'react';
+import { UPlotConfigBuilder } from 'lib/uPlotV2/config/UPlotConfigBuilder';
+import { has } from 'lodash-es';
+import uPlot from 'uplot';
+
+import { stackSeries } from '../charts/utils/stackSeriesUtils';
+
+/** Returns true if the series at the given index is hidden (e.g. via legend toggle). */
+function isSeriesHidden(plot: uPlot, seriesIndex: number): boolean {
+	return !plot.series[seriesIndex]?.show;
+}
+
+function canApplyStacking(
+	unstackedData: uPlot.AlignedData | null,
+	plot: uPlot,
+	isUpdating: boolean,
+): boolean {
+	return (
+		!isUpdating &&
+		!!unstackedData &&
+		!!plot.data &&
+		unstackedData[0]?.length === plot.data[0]?.length
+	);
+}
+
+function setupStackingHooks(
+	config: UPlotConfigBuilder,
+	applyStackingToChart: (plot: uPlot) => void,
+	isUpdatingRef: MutableRefObject<boolean>,
+): () => void {
+	const onDataChange = (plot: uPlot): void => {
+		if (!isUpdatingRef.current) {
+			applyStackingToChart(plot);
+		}
+	};
+
+	const onSeriesVisibilityChange = (
+		plot: uPlot,
+		_seriesIdx: number | null,
+		opts: uPlot.Series,
+	): void => {
+		if (!has(opts, 'focus')) {
+			applyStackingToChart(plot);
+		}
+	};
+
+	const removeSetDataHook = config.addHook('setData', onDataChange);
+	const removeSetSeriesHook = config.addHook(
+		'setSeries',
+		onSeriesVisibilityChange,
+	);
+
+	return (): void => {
+		removeSetDataHook?.();
+		removeSetSeriesHook?.();
+	};
+}
+
+export interface UseBarChartStackingParams {
+	data: uPlot.AlignedData;
+	isStackedBarChart?: boolean;
+	config: UPlotConfigBuilder | null;
+}
+
+/**
+ * Handles stacking for bar charts: computes initial stacked data and re-stacks
+ * when data or series visibility changes (e.g. legend toggles).
+ */
+export function useBarChartStacking({
+	data,
+	isStackedBarChart = false,
+	config,
+}: UseBarChartStackingParams): uPlot.AlignedData {
+	// Store unstacked source data so uPlot hooks can access it (hooks run outside React's render cycle)
+	const unstackedDataRef = useRef<uPlot.AlignedData | null>(null);
+	unstackedDataRef.current = isStackedBarChart ? data : null;
+
+	// Prevents re-entrant calls when we update chart data (avoids infinite loop in setData hook)
+	const isUpdatingChartRef = useRef(false);
+
+	const chartData = useMemo((): uPlot.AlignedData => {
+		if (!isStackedBarChart || !data || data.length < 2) {
+			return data;
+		}
+		const noSeriesHidden = (): boolean => false; // include all series in initial stack
+		const { data: stacked } = stackSeries(data, noSeriesHidden);
+		return stacked;
+	}, [data, isStackedBarChart]);
+
+	const applyStackingToChart = useCallback((plot: uPlot): void => {
+		const unstacked = unstackedDataRef.current;
+		if (
+			!unstacked ||
+			!canApplyStacking(unstacked, plot, isUpdatingChartRef.current)
+		) {
+			return;
+		}
+
+		const shouldExcludeSeries = (idx: number): boolean =>
+			isSeriesHidden(plot, idx);
+		const { data: stacked, bands } = stackSeries(unstacked, shouldExcludeSeries);
+
+		plot.delBand(null);
+		bands.forEach((band: uPlot.Band) => plot.addBand(band));
+
+		isUpdatingChartRef.current = true;
+		plot.setData(stacked);
+		isUpdatingChartRef.current = false;
+	}, []);
+
+	useLayoutEffect(() => {
+		if (!isStackedBarChart || !config) {
+			return undefined;
+		}
+		return setupStackingHooks(config, applyStackingToChart, isUpdatingChartRef);
+	}, [isStackedBarChart, config, applyStackingToChart]);
+
+	return chartData;
+}

frontend/src/container/DashboardContainer/visualization/panels/BarPanel/BarPanel.tsx

@@ -0,0 +1,160 @@
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import { PanelWrapperProps } from 'container/PanelWrapper/panelWrapper.types';
+import { useIsDarkMode } from 'hooks/useDarkMode';
+import { useResizeObserver } from 'hooks/useDimensions';
+import { LegendPosition } from 'lib/uPlotV2/components/types';
+import ContextMenu from 'periscope/components/ContextMenu';
+import { useDashboard } from 'providers/Dashboard/Dashboard';
+import { useTimezone } from 'providers/Timezone';
+import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
+import uPlot from 'uplot';
+import { getTimeRange } from 'utils/getTimeRange';
+
+import BarChart from '../../charts/BarChart/BarChart';
+import ChartManager from '../../components/ChartManager/ChartManager';
+import { usePanelContextMenu } from '../../hooks/usePanelContextMenu';
+import { prepareBarPanelConfig, prepareBarPanelData } from './utils';
+
+import '../Panel.styles.scss';
+
+function BarPanel(props: PanelWrapperProps): JSX.Element {
+	const {
+		panelMode,
+		queryResponse,
+		widget,
+		onDragSelect,
+		isFullViewMode,
+		onToggleModelHandler,
+	} = props;
+	const uPlotRef = useRef<uPlot | null>(null);
+	const { toScrollWidgetId, setToScrollWidgetId } = useDashboard();
+	const graphRef = useRef<HTMLDivElement>(null);
+	const [minTimeScale, setMinTimeScale] = useState<number>();
+	const [maxTimeScale, setMaxTimeScale] = useState<number>();
+	const containerDimensions = useResizeObserver(graphRef);
+
+	const isDarkMode = useIsDarkMode();
+	const { timezone } = useTimezone();
+
+	useEffect(() => {
+		if (toScrollWidgetId === widget.id) {
+			graphRef.current?.scrollIntoView({
+				behavior: 'smooth',
+				block: 'center',
+			});
+			graphRef.current?.focus();
+			setToScrollWidgetId('');
+		}
+	}, [toScrollWidgetId, setToScrollWidgetId, widget.id]);
+
+	useEffect((): void => {
+		const { startTime, endTime } = getTimeRange(queryResponse);
+
+		setMinTimeScale(startTime);
+		setMaxTimeScale(endTime);
+	}, [queryResponse]);
+
+	const {
+		coordinates,
+		popoverPosition,
+		onClose,
+		menuItemsConfig,
+		clickHandlerWithContextMenu,
+	} = usePanelContextMenu({
+		widget,
+		queryResponse,
+	});
+
+	const config = useMemo(() => {
+		return prepareBarPanelConfig({
+			widget,
+			isDarkMode,
+			currentQuery: widget.query,
+			onClick: clickHandlerWithContextMenu,
+			onDragSelect,
+			apiResponse: queryResponse?.data?.payload as MetricRangePayloadProps,
+			timezone,
+			panelMode,
+			minTimeScale: minTimeScale,
+			maxTimeScale: maxTimeScale,
+		});
+	}, [
+		widget,
+		isDarkMode,
+		queryResponse?.data?.payload,
+		clickHandlerWithContextMenu,
+		onDragSelect,
+		minTimeScale,
+		maxTimeScale,
+		timezone,
+		panelMode,
+	]);
+
+	const chartData = useMemo(() => {
+		if (!queryResponse?.data?.payload) {
+			return [];
+		}
+		return prepareBarPanelData(queryResponse?.data?.payload);
+	}, [queryResponse?.data?.payload]);
+
+	const layoutChildren = useMemo(() => {
+		if (!isFullViewMode) {
+			return null;
+		}
+		return (
+			<ChartManager
+				config={config}
+				alignedData={chartData}
+				yAxisUnit={widget.yAxisUnit}
+				onCancel={onToggleModelHandler}
+			/>
+		);
+	}, [
+		isFullViewMode,
+		config,
+		chartData,
+		widget.yAxisUnit,
+		onToggleModelHandler,
+	]);
+
+	const onPlotDestroy = useCallback(() => {
+		uPlotRef.current = null;
+	}, []);
+
+	const onPlotRef = useCallback((plot: uPlot | null): void => {
+		uPlotRef.current = plot;
+	}, []);
+
+	return (
+		<div className="panel-container" ref={graphRef}>
+			{containerDimensions.width > 0 && containerDimensions.height > 0 && (
+				<BarChart
+					config={config}
+					legendConfig={{
+						position: widget?.legendPosition ?? LegendPosition.BOTTOM,
+					}}
+					plotRef={onPlotRef}
+					onDestroy={onPlotDestroy}
+					yAxisUnit={widget.yAxisUnit}
+					decimalPrecision={widget.decimalPrecision}
+					timezone={timezone.value}
+					data={chartData as uPlot.AlignedData}
+					width={containerDimensions.width}
+					height={containerDimensions.height}
+					layoutChildren={layoutChildren}
+					isStackedBarChart={widget.stackedBarChart ?? false}
+				>
+					<ContextMenu
+						coordinates={coordinates}
+						popoverPosition={popoverPosition}
+						title={menuItemsConfig.header as string}
+						items={menuItemsConfig.items}
+						onClose={onClose}
+					/>
+				</BarChart>
+			)}
+		</div>
+	);
+}
+
+export default BarPanel;

frontend/src/container/DashboardContainer/visualization/panels/BarPanel/utils.ts

@@ -0,0 +1,118 @@
+import { Timezone } from 'components/CustomTimePicker/timezoneUtils';
+import { PANEL_TYPES } from 'constants/queryBuilder';
+import { getInitialStackedBands } from 'container/DashboardContainer/visualization/charts/utils/stackSeriesUtils';
+import { getLegend } from 'lib/dashboard/getQueryResults';
+import getLabelName from 'lib/getLabelName';
+import { OnClickPluginOpts } from 'lib/uPlotLib/plugins/onClickPlugin';
+import {
+	DrawStyle,
+	LineInterpolation,
+	LineStyle,
+	VisibilityMode,
+} from 'lib/uPlotV2/config/types';
+import { UPlotConfigBuilder } from 'lib/uPlotV2/config/UPlotConfigBuilder';
+import { get } from 'lodash-es';
+import { Widgets } from 'types/api/dashboard/getAll';
+import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+import { QueryData } from 'types/api/widgets/getQuery';
+import { AlignedData } from 'uplot';
+
+import { PanelMode } from '../types';
+import { fillMissingXAxisTimestamps, getXAxisTimestamps } from '../utils';
+import { buildBaseConfig } from '../utils/baseConfigBuilder';
+
+export function prepareBarPanelData(
+	apiResponse: MetricRangePayloadProps,
+): AlignedData {
+	const seriesList = apiResponse?.data?.result || [];
+	const timestampArr = getXAxisTimestamps(seriesList);
+	const yAxisValuesArr = fillMissingXAxisTimestamps(timestampArr, seriesList);
+	return [timestampArr, ...yAxisValuesArr];
+}
+
+export function prepareBarPanelConfig({
+	widget,
+	isDarkMode,
+	currentQuery,
+	onClick,
+	onDragSelect,
+	apiResponse,
+	timezone,
+	panelMode,
+	minTimeScale,
+	maxTimeScale,
+}: {
+	widget: Widgets;
+	isDarkMode: boolean;
+	currentQuery: Query;
+	onClick: OnClickPluginOpts['onClick'];
+	onDragSelect: (startTime: number, endTime: number) => void;
+	apiResponse: MetricRangePayloadProps;
+	timezone: Timezone;
+	panelMode: PanelMode;
+	minTimeScale?: number;
+	maxTimeScale?: number;
+}): UPlotConfigBuilder {
+	const builder = buildBaseConfig({
+		widget,
+		isDarkMode,
+		onClick,
+		onDragSelect,
+		apiResponse,
+		timezone,
+		panelMode,
+		panelType: PANEL_TYPES.BAR,
+		minTimeScale,
+		maxTimeScale,
+	});
+
+	builder.setCursor({
+		focus: {
+			prox: 1e3,
+		},
+	});
+
+	if (widget.stackedBarChart) {
+		const seriesCount = (apiResponse?.data?.result?.length ?? 0) + 1; // +1 for 1-based uPlot series indices
+		builder.setBands(getInitialStackedBands(seriesCount));
+	}
+
+	const stepIntervals: Record<string, number> = get(
+		apiResponse,
+		'data.newResult.meta.stepIntervals',
+		{},
+	);
+
+	const seriesList: QueryData[] = apiResponse?.data?.result || [];
+	seriesList.forEach((series) => {
+		const baseLabelName = getLabelName(
+			series.metric,
+			series.queryName || '', // query
+			series.legend || '',
+		);
+
+		const label = currentQuery
+			? getLegend(series, currentQuery, baseLabelName)
+			: baseLabelName;
+
+		const currentStepInterval = get(stepIntervals, series.queryName, undefined);
+
+		builder.addSeries({
+			scaleKey: 'y',
+			drawStyle: DrawStyle.Bar,
+			panelType: PANEL_TYPES.BAR,
+			label: label,
+			colorMapping: widget.customLegendColors ?? {},
+			spanGaps: false,
+			lineStyle: LineStyle.Solid,
+			lineInterpolation: LineInterpolation.Spline,
+			showPoints: VisibilityMode.Never,
+			pointSize: 5,
+			isDarkMode,
+			stepInterval: currentStepInterval,
+		});
+	});
+
+	return builder;
+}

frontend/src/container/DashboardContainer/visualization/panels/TimeSeriesPanel/utils.ts

@@ -83,7 +83,7 @@ export const prepareUPlotConfig = ({
 			drawStyle: DrawStyle.Line,
 			label: label,
 			colorMapping: widget.customLegendColors ?? {},
-			spanGaps: false,
+			spanGaps: true,
 			lineStyle: LineStyle.Solid,
 			lineInterpolation: LineInterpolation.Spline,
 			showPoints: VisibilityMode.Never,

frontend/src/container/DashboardContainer/visualization/panels/utils/__tests__/legendVisibilityUtils.test.ts

@@ -0,0 +1,270 @@
+import { LOCALSTORAGE } from 'constants/localStorage';
+
+import type { GraphVisibilityState } from '../../types';
+import {
+	getStoredSeriesVisibility,
+	updateSeriesVisibilityToLocalStorage,
+} from '../legendVisibilityUtils';
+
+describe('legendVisibilityUtils', () => {
+	const storageKey = LOCALSTORAGE.GRAPH_VISIBILITY_STATES;
+
+	beforeEach(() => {
+		localStorage.clear();
+		jest.spyOn(window.localStorage.__proto__, 'getItem');
+		jest.spyOn(window.localStorage.__proto__, 'setItem');
+	});
+
+	afterEach(() => {
+		jest.restoreAllMocks();
+	});
+
+	describe('getStoredSeriesVisibility', () => {
+		it('returns null when there is no stored visibility state', () => {
+			const result = getStoredSeriesVisibility('widget-1');
+
+			expect(result).toBeNull();
+			expect(localStorage.getItem).toHaveBeenCalledWith(storageKey);
+		});
+
+		it('returns null when widget has no stored dataIndex', () => {
+			const stored: GraphVisibilityState[] = [
+				{
+					name: 'widget-1',
+					dataIndex: [],
+				},
+			];
+
+			localStorage.setItem(storageKey, JSON.stringify(stored));
+
+			const result = getStoredSeriesVisibility('widget-1');
+
+			expect(result).toBeNull();
+		});
+
+		it('returns visibility array by index when widget state exists', () => {
+			const stored: GraphVisibilityState[] = [
+				{
+					name: 'widget-1',
+					dataIndex: [
+						{ label: 'CPU', show: true },
+						{ label: 'Memory', show: false },
+					],
+				},
+				{
+					name: 'widget-2',
+					dataIndex: [{ label: 'Errors', show: true }],
+				},
+			];
+
+			localStorage.setItem(storageKey, JSON.stringify(stored));
+
+			const result = getStoredSeriesVisibility('widget-1');
+
+			expect(result).not.toBeNull();
+			expect(result).toEqual([
+				{ label: 'CPU', show: true },
+				{ label: 'Memory', show: false },
+			]);
+		});
+
+		it('returns visibility by index including duplicate labels', () => {
+			const stored: GraphVisibilityState[] = [
+				{
+					name: 'widget-1',
+					dataIndex: [
+						{ label: 'CPU', show: true },
+						{ label: 'CPU', show: false },
+						{ label: 'Memory', show: false },
+					],
+				},
+			];
+
+			localStorage.setItem(storageKey, JSON.stringify(stored));
+
+			const result = getStoredSeriesVisibility('widget-1');
+
+			expect(result).not.toBeNull();
+			expect(result).toEqual([
+				{ label: 'CPU', show: true },
+				{ label: 'CPU', show: false },
+				{ label: 'Memory', show: false },
+			]);
+		});
+
+		it('returns null on malformed JSON in localStorage', () => {
+			localStorage.setItem(storageKey, '{invalid-json');
+
+			const result = getStoredSeriesVisibility('widget-1');
+
+			expect(result).toBeNull();
+		});
+
+		it('returns null when widget id is not found', () => {
+			const stored: GraphVisibilityState[] = [
+				{
+					name: 'another-widget',
+					dataIndex: [{ label: 'CPU', show: true }],
+				},
+			];
+
+			localStorage.setItem(storageKey, JSON.stringify(stored));
+
+			const result = getStoredSeriesVisibility('widget-1');
+
+			expect(result).toBeNull();
+		});
+	});
+
+	describe('updateSeriesVisibilityToLocalStorage', () => {
+		it('creates new visibility state when none exists', () => {
+			const seriesVisibility = [
+				{ label: 'CPU', show: true },
+				{ label: 'Memory', show: false },
+			];
+
+			updateSeriesVisibilityToLocalStorage('widget-1', seriesVisibility);
+
+			const stored = getStoredSeriesVisibility('widget-1');
+
+			expect(stored).not.toBeNull();
+			expect(stored).toEqual([
+				{ label: 'CPU', show: true },
+				{ label: 'Memory', show: false },
+			]);
+		});
+
+		it('adds a new widget entry when other widgets already exist', () => {
+			const existing: GraphVisibilityState[] = [
+				{
+					name: 'widget-existing',
+					dataIndex: [{ label: 'Errors', show: true }],
+				},
+			];
+			localStorage.setItem(storageKey, JSON.stringify(existing));
+
+			const newVisibility = [{ label: 'CPU', show: false }];
+
+			updateSeriesVisibilityToLocalStorage('widget-new', newVisibility);
+
+			const stored = getStoredSeriesVisibility('widget-new');
+
+			expect(stored).not.toBeNull();
+			expect(stored).toEqual([{ label: 'CPU', show: false }]);
+		});
+
+		it('updates existing widget visibility when entry already exists', () => {
+			const initialVisibility: GraphVisibilityState[] = [
+				{
+					name: 'widget-1',
+					dataIndex: [
+						{ label: 'CPU', show: true },
+						{ label: 'Memory', show: true },
+					],
+				},
+			];
+
+			localStorage.setItem(storageKey, JSON.stringify(initialVisibility));
+
+			const updatedVisibility = [
+				{ label: 'CPU', show: false },
+				{ label: 'Memory', show: true },
+			];
+
+			updateSeriesVisibilityToLocalStorage('widget-1', updatedVisibility);
+
+			const stored = getStoredSeriesVisibility('widget-1');
+
+			expect(stored).not.toBeNull();
+			expect(stored).toEqual([
+				{ label: 'CPU', show: false },
+				{ label: 'Memory', show: true },
+			]);
+		});
+
+		it('silently handles malformed existing JSON without throwing', () => {
+			localStorage.setItem(storageKey, '{invalid-json');
+
+			expect(() =>
+				updateSeriesVisibilityToLocalStorage('widget-1', [
+					{ label: 'CPU', show: true },
+				]),
+			).not.toThrow();
+		});
+
+		it('when existing JSON is malformed, overwrites with valid data for the widget', () => {
+			localStorage.setItem(storageKey, '{invalid-json');
+
+			updateSeriesVisibilityToLocalStorage('widget-1', [
+				{ label: 'x-axis', show: true },
+				{ label: 'CPU', show: false },
+			]);
+
+			const stored = getStoredSeriesVisibility('widget-1');
+			expect(stored).not.toBeNull();
+			expect(stored).toEqual([
+				{ label: 'x-axis', show: true },
+				{ label: 'CPU', show: false },
+			]);
+			const expected = [
+				{
+					name: 'widget-1',
+					dataIndex: [
+						{ label: 'x-axis', show: true },
+						{ label: 'CPU', show: false },
+					],
+				},
+			];
+			expect(localStorage.setItem).toHaveBeenCalledWith(
+				storageKey,
+				JSON.stringify(expected),
+			);
+		});
+
+		it('preserves other widgets when updating one widget', () => {
+			const existing: GraphVisibilityState[] = [
+				{ name: 'widget-a', dataIndex: [{ label: 'A', show: true }] },
+				{ name: 'widget-b', dataIndex: [{ label: 'B', show: false }] },
+			];
+			localStorage.setItem(storageKey, JSON.stringify(existing));
+
+			updateSeriesVisibilityToLocalStorage('widget-b', [
+				{ label: 'B', show: true },
+			]);
+
+			expect(getStoredSeriesVisibility('widget-a')).toEqual([
+				{ label: 'A', show: true },
+			]);
+			expect(getStoredSeriesVisibility('widget-b')).toEqual([
+				{ label: 'B', show: true },
+			]);
+		});
+
+		it('calls setItem with storage key and stringified visibility states', () => {
+			updateSeriesVisibilityToLocalStorage('widget-1', [
+				{ label: 'CPU', show: true },
+			]);
+
+			expect(localStorage.setItem).toHaveBeenCalledTimes(1);
+			expect(localStorage.setItem).toHaveBeenCalledWith(
+				storageKey,
+				expect.any(String),
+			);
+			const [_, value] = (localStorage.setItem as jest.Mock).mock.calls[0];
+			expect((): void => JSON.parse(value)).not.toThrow();
+			expect(JSON.parse(value)).toEqual([
+				{ name: 'widget-1', dataIndex: [{ label: 'CPU', show: true }] },
+			]);
+		});
+
+		it('stores empty dataIndex when seriesVisibility is empty', () => {
+			updateSeriesVisibilityToLocalStorage('widget-1', []);
+
+			const raw = localStorage.getItem(storageKey);
+			expect(raw).not.toBeNull();
+			const parsed = JSON.parse(raw ?? '[]');
+			expect(parsed).toEqual([{ name: 'widget-1', dataIndex: [] }]);
+			expect(getStoredSeriesVisibility('widget-1')).toBeNull();
+		});
+	});
+});

frontend/src/container/DashboardContainer/visualization/panels/utils/baseConfigBuilder.ts

@@ -88,7 +88,7 @@ export function buildBaseConfig({
 		max: undefined,
 		softMin: widget.softMin ?? undefined,
 		softMax: widget.softMax ?? undefined,
-		// thresholds,
+		thresholds: thresholdOptions,
 		logBase: widget.isLogScale ? 10 : undefined,
 		distribution: widget.isLogScale
 			? DistributionType.Logarithmic

frontend/src/container/DashboardContainer/visualization/panels/utils/legendVisibilityUtils.ts

@@ -3,13 +3,14 @@ import { LOCALSTORAGE } from 'constants/localStorage';
 import { GraphVisibilityState, SeriesVisibilityItem } from '../types';
 
 /**
- * Retrieves the visibility map for a specific widget from localStorage
+ * Retrieves the stored series visibility for a specific widget from localStorage by index.
+ * Index 0 is the x-axis (time); indices 1, 2, ... are data series (same order as uPlot plot.series).
  * @param widgetId - The unique identifier of the widget
- * @returns A Map of series labels to their visibility state, or null if not found
+ * @returns visibility[i] = show state for series at index i, or null if not found
  */
 export function getStoredSeriesVisibility(
 	widgetId: string,
-): Map<string, boolean> | null {
+): SeriesVisibilityItem[] | null {
 	try {
 		const storedData = localStorage.getItem(LOCALSTORAGE.GRAPH_VISIBILITY_STATES);
 
@@ -24,8 +25,12 @@ export function getStoredSeriesVisibility(
 			return null;
 		}
 
-		return new Map(widgetState.dataIndex.map((item) => [item.label, item.show]));
-	} catch {
+		return widgetState.dataIndex;
+	} catch (error) {
+		if (error instanceof SyntaxError) {
+			// If the stored data is malformed, remove it
+			localStorage.removeItem(LOCALSTORAGE.GRAPH_VISIBILITY_STATES);
+		}
 		// Silently handle parsing errors - fall back to default visibility
 		return null;
 	}
@@ -35,40 +40,31 @@ export function updateSeriesVisibilityToLocalStorage(
 	widgetId: string,
 	seriesVisibility: SeriesVisibilityItem[],
 ): void {
+	let visibilityStates: GraphVisibilityState[] = [];
 	try {
 		const storedData = localStorage.getItem(LOCALSTORAGE.GRAPH_VISIBILITY_STATES);
-
-		let visibilityStates: GraphVisibilityState[];
-
-		if (!storedData) {
-			visibilityStates = [
-				{
-					name: widgetId,
-					dataIndex: seriesVisibility,
-				},
-			];
-		} else {
-			visibilityStates = JSON.parse(storedData);
+		visibilityStates = JSON.parse(storedData || '[]');
+	} catch (error) {
+		if (error instanceof SyntaxError) {
+			visibilityStates = [];
 		}
-		const widgetState = visibilityStates.find((state) => state.name === widgetId);
-
-		if (!widgetState) {
-			visibilityStates = [
-				...visibilityStates,
-				{
-					name: widgetId,
-					dataIndex: seriesVisibility,
-				},
-			];
-		} else {
-			widgetState.dataIndex = seriesVisibility;
-		}
-
-		localStorage.setItem(
-			LOCALSTORAGE.GRAPH_VISIBILITY_STATES,
-			JSON.stringify(visibilityStates),
-		);
-	} catch {
-		// Silently handle parsing errors - fall back to default visibility
 	}
+	const widgetState = visibilityStates.find((state) => state.name === widgetId);
+
+	if (widgetState) {
+		widgetState.dataIndex = seriesVisibility;
+	} else {
+		visibilityStates = [
+			...visibilityStates,
+			{
+				name: widgetId,
+				dataIndex: seriesVisibility,
+			},
+		];
+	}
+
+	localStorage.setItem(
+		LOCALSTORAGE.GRAPH_VISIBILITY_STATES,
+		JSON.stringify(visibilityStates),
+	);
 }

frontend/src/container/GridCardLayout/GridCard/index.tsx

@@ -6,10 +6,12 @@ import { QueryParams } from 'constants/query';
 import { PANEL_TYPES } from 'constants/queryBuilder';
 import { populateMultipleResults } from 'container/NewWidget/LeftContainer/WidgetGraph/util';
 import { CustomTimeType } from 'container/TopNav/DateTimeSelectionV2/types';
+import { useIsPanelWaitingOnVariable } from 'hooks/dashboard/useVariableFetchState';
 import { useGetQueryRange } from 'hooks/queryBuilder/useGetQueryRange';
 import { useIntersectionObserver } from 'hooks/useIntersectionObserver';
 import { GetQueryResultsProps } from 'lib/dashboard/getQueryResults';
 import { getDashboardVariables } from 'lib/dashboardVariables/getDashboardVariables';
+import { getVariableReferencesInQuery } from 'lib/dashboardVariables/variableReference';
 import getTimeString from 'lib/getTimeString';
 import { isEqual } from 'lodash-es';
 import isEmpty from 'lodash-es/isEmpty';
@@ -53,7 +55,6 @@ function GridCardGraph({
 	customOnRowClick,
 	customTimeRangeWindowForCoRelation,
 	enableDrillDown,
-	widgetsByDynamicVariableId,
 }: GridCardGraphProps): JSX.Element {
 	const dispatch = useDispatch();
 	const [errorMessage, setErrorMessage] = useState<string>();
@@ -64,8 +65,8 @@ function GridCardGraph({
 		toScrollWidgetId,
 		setToScrollWidgetId,
 		setDashboardQueryRangeCalled,
-		variablesToGetUpdated,
 	} = useDashboard();
+
 	const { minTime, maxTime, selectedTime: globalSelectedInterval } = useSelector<
 		AppState,
 		GlobalReducer
@@ -117,10 +118,25 @@ function GridCardGraph({
 
 	const updatedQuery = widget?.query;
 
+	const referencedVariableNames = useMemo(() => {
+		if (!variables || !updatedQuery) {
+			return [];
+		}
+		const allNames = Object.values(variables)
+			.map((v) => v.name)
+			.filter((name): name is string => !!name);
+		return getVariableReferencesInQuery(updatedQuery, allNames);
+	}, [updatedQuery, variables]);
+
 	const isEmptyWidget =
 		widget?.id === PANEL_TYPES.EMPTY_WIDGET || isEmpty(widget);
 
-	const queryEnabledCondition = isVisible && !isEmptyWidget && isQueryEnabled;
+	const isPanelWaitingOnAnyVariable = useIsPanelWaitingOnVariable(
+		referencedVariableNames,
+	);
+
+	const queryEnabledCondition =
+		isVisible && !isEmptyWidget && isQueryEnabled && !isPanelWaitingOnAnyVariable;
 
 	const [requestData, setRequestData] = useState<GetQueryResultsProps>(() => {
 		if (widget.panelTypes !== PANEL_TYPES.LIST) {
@@ -177,27 +193,6 @@ function GridCardGraph({
 		[requestData.query],
 	);
 
-	// Bring back dependency on variable chaining for panels to refetch,
-	// but only for non-dynamic variables. We derive a stable token from
-	// the head of the variablesToGetUpdated queue when it's non-dynamic.
-	const nonDynamicVariableChainToken = useMemo(() => {
-		if (!variablesToGetUpdated || variablesToGetUpdated.length === 0) {
-			return undefined;
-		}
-		if (!variables) {
-			return undefined;
-		}
-		const headName = variablesToGetUpdated[0];
-		const variableObj = Object.values(variables).find(
-			(variable) => variable?.name === headName,
-		);
-		if (variableObj && variableObj.type !== 'DYNAMIC') {
-			return headName;
-		}
-		return undefined;
-		// eslint-disable-next-line react-hooks/exhaustive-deps
-	}, [variablesToGetUpdated, variables]);
-
 	const queryResponse = useGetQueryRange(
 		{
 			...requestData,
@@ -224,11 +219,7 @@ function GridCardGraph({
 				requestData,
 				variables
 					? Object.entries(variables).reduce((acc, [id, variable]) => {
-							if (
-								variable.type !== 'DYNAMIC' ||
-								(widgetsByDynamicVariableId?.[variable.id] &&
-									widgetsByDynamicVariableId?.[variable.id].includes(widget.id))
-							) {
+							if (variable.name && referencedVariableNames.includes(variable.name)) {
 								return { ...acc, [id]: variable.selectedValue };
 							}
 							return acc;
@@ -237,9 +228,6 @@ function GridCardGraph({
 				...(customTimeRange && customTimeRange.startTime && customTimeRange.endTime
 					? [customTimeRange.startTime, customTimeRange.endTime]
 					: []),
-				// Include non-dynamic variable chaining token to drive refetches
-				// only when a non-dynamic variable is at the head of the queue
-				...(nonDynamicVariableChainToken ? [nonDynamicVariableChainToken] : []),
 			],
 			retry(failureCount, error): boolean {
 				if (
@@ -252,7 +240,7 @@ function GridCardGraph({
 				return failureCount < 2;
 			},
 			keepPreviousData: true,
-			enabled: queryEnabledCondition && !nonDynamicVariableChainToken,
+			enabled: queryEnabledCondition,
 			refetchOnMount: false,
 			onError: (error) => {
 				const errorMessage =
@@ -319,7 +307,7 @@ function GridCardGraph({
 					threshold={threshold}
 					headerMenuList={menuList}
 					isFetchingResponse={
-						queryResponse.isFetching || variablesToGetUpdated.length > 0
+						queryResponse.isFetching || isPanelWaitingOnAnyVariable
 					}
 					setRequestData={setRequestData}
 					onClickHandler={onClickHandler}

frontend/src/container/GridCardLayout/GridCard/types.ts

@@ -72,7 +72,6 @@ export interface GridCardGraphProps {
 	customOnRowClick?: (record: RowData) => void;
 	customTimeRangeWindowForCoRelation?: string | undefined;
 	enableDrillDown?: boolean;
-	widgetsByDynamicVariableId?: Record<string, string[]>;
 }
 
 export interface GetGraphVisibilityStateOnLegendClickProps {

frontend/src/container/GridCardLayout/GridCardLayout.tsx

@@ -16,7 +16,6 @@ import { themeColors } from 'constants/theme';
 import { DEFAULT_ROW_NAME } from 'container/DashboardContainer/DashboardDescription/utils';
 import { useDashboardVariables } from 'hooks/dashboard/useDashboardVariables';
 import { useUpdateDashboard } from 'hooks/dashboard/useUpdateDashboard';
-import { useWidgetsByDynamicVariableId } from 'hooks/dashboard/useWidgetsByDynamicVariableId';
 import useComponentPermission from 'hooks/useComponentPermission';
 import { useIsDarkMode } from 'hooks/useDarkMode';
 import { useSafeNavigate } from 'hooks/useSafeNavigate';
@@ -102,8 +101,6 @@ function GraphLayout(props: GraphLayoutProps): JSX.Element {
 		Record<string, { widgets: Layout[]; collapsed: boolean }>
 	>({});
 
-	const widgetsByDynamicVariableId = useWidgetsByDynamicVariableId();
-
 	useEffect(() => {
 		setCurrentPanelMap(panelMap);
 	}, [panelMap]);
@@ -617,7 +614,6 @@ function GraphLayout(props: GraphLayoutProps): JSX.Element {
 									onDragSelect={onDragSelect}
 									dataAvailable={checkIfDataExists}
 									enableDrillDown={enableDrillDown}
-									widgetsByDynamicVariableId={widgetsByDynamicVariableId}
 								/>
 							</Card>
 						</CardContainer>

frontend/src/container/OnboardingQuestionaire/OnboardingQuestionaire.styles.scss

@@ -477,47 +477,67 @@
 			}
 		}
 
-		.opentelemetry-radio-container {
+		.observability-tools-radio-container {
+			display: flex;
+			flex-wrap: wrap;
+			gap: 0 12px;
 			width: 528px;
 
-			.opentelemetry-radio-group {
-				width: 100%;
+			.observability-tool-radio-item {
+				display: flex;
+				align-items: center;
+				gap: 8px;
+				height: 32px;
+				width: calc((528px - 12px) / 2);
+				flex: 0 0 calc((528px - 12px) / 2);
 
-				.opentelemetry-radio-items-wrapper {
-					display: flex;
-					flex-direction: row;
-					flex-wrap: nowrap;
-					gap: 12px;
-					width: 100%;
+				label {
+					color: var(--l1-foreground);
+					font-size: 13px;
+					cursor: pointer;
 				}
 
-				.opentelemetry-radio-item {
-					display: flex;
-					align-items: center;
-					gap: 8px;
-					height: 32px;
-					width: calc((528px - 12px) / 2);
-					min-width: 258px;
-					flex: 0 0 calc((528px - 12px) / 2);
+				button[role='radio'] {
+					&[data-state='unchecked'] {
+						border-color: var(--l3-border) !important;
+						border-width: 1px !important;
+					}
+				}
+
+				&.observability-tool-others-item {
+					.onboarding-questionaire-other-input {
+						flex: 1;
+					}
+				}
+			}
+		}
+
+		.migration-timeline-radio-container,
+		.opentelemetry-radio-container {
+			display: flex;
+			flex-wrap: wrap;
+			gap: 0 12px;
+			width: 528px;
+
+			.migration-timeline-radio-item,
+			.opentelemetry-radio-item {
+				display: flex;
+				align-items: center;
+				gap: 8px;
+				height: 32px;
+				width: calc((528px - 12px) / 2);
+				flex: 0 0 calc((528px - 12px) / 2);
+
+				label {
 					color: var(--l1-foreground);
-					font-family: Inter, sans-serif;
 					font-size: 13px;
-					font-weight: 400;
-					line-height: 1;
-					letter-spacing: -0.065px;
-					box-sizing: border-box;
+					cursor: pointer;
+				}
 
-					.ant-radio {
-						.ant-radio-inner {
-							width: 16px;
-							height: 16px;
-							border-color: var(--l3-border);
-						}
-
-						&.ant-radio-checked .ant-radio-inner {
-							border-color: var(--bg-robin-500);
-							background-color: var(--bg-robin-500);
-						}
+				button[role='radio'] {
+					&[data-state='unchecked'] {
+						border-color: var(--l3-border) !important;
+						border-width: 1px !important;
 					}
 				}
 			}
@@ -977,27 +997,6 @@
 				color: var(--bg-slate-300);
 			}
 
-			.opentelemetry-radio-container {
-				.opentelemetry-radio-group {
-					.opentelemetry-radio-items-wrapper {
-						.opentelemetry-radio-item {
-							color: var(--l1-foreground);
-
-							.ant-radio {
-								.ant-radio-inner {
-									border-color: var(--l3-border);
-								}
-
-								&.ant-radio-checked .ant-radio-inner {
-									border-color: var(--bg-robin-500);
-									background-color: var(--bg-robin-500);
-								}
-							}
-						}
-					}
-				}
-			}
-
 			.onboarding-back-button {
 				border-color: var(--text-vanilla-300);
 				color: var(--l3-foreground);

frontend/src/container/OnboardingQuestionaire/OrgQuestions/OrgQuestions.tsx

@@ -1,34 +1,27 @@
 /* eslint-disable sonarjs/cognitive-complexity */
 import { useEffect, useState } from 'react';
-import { useTranslation } from 'react-i18next';
 import { Button } from '@signozhq/button';
-import { Checkbox } from '@signozhq/checkbox';
 import { Input } from '@signozhq/input';
-import { Radio, Typography } from 'antd';
-import { RadioChangeEvent } from 'antd/es/radio';
+import {
+	RadioGroup,
+	RadioGroupItem,
+	RadioGroupLabel,
+} from '@signozhq/radio-group';
+import { Typography } from 'antd';
 import logEvent from 'api/common/logEvent';
-import editOrg from 'api/organization/editOrg';
-import { useNotifications } from 'hooks/useNotifications';
-import { ArrowRight, Loader2 } from 'lucide-react';
-import { useAppContext } from 'providers/App/App';
+import { ArrowRight } from 'lucide-react';
 
 import '../OnboardingQuestionaire.styles.scss';
 
-export interface OrgData {
-	id: string;
-	displayName: string;
-}
-
 export interface OrgDetails {
-	organisationName: string;
 	usesObservability: boolean | null;
 	observabilityTool: string | null;
 	otherTool: string | null;
 	usesOtel: boolean | null;
+	migrationTimeline: string | null;
 }
 
 interface OrgQuestionsProps {
-	currentOrgData: OrgData | null;
 	orgDetails: OrgDetails;
 	onNext: (details: OrgDetails) => void;
 }
@@ -45,19 +38,14 @@ const observabilityTools = {
 	Others: 'Others',
 };
 
-function OrgQuestions({
-	currentOrgData,
-	orgDetails,
-	onNext,
-}: OrgQuestionsProps): JSX.Element {
-	const { updateOrg } = useAppContext();
-	const { notifications } = useNotifications();
+const migrationTimelineOptions = {
+	lessThanMonth: 'Less than a month',
+	oneToThreeMonths: '1-3 months',
+	greaterThanThreeMonths: 'Greater than 3 months',
+	justExploring: 'Just exploring',
+};
 
-	const { t } = useTranslation(['organizationsettings', 'common']);
-
-	const [organisationName, setOrganisationName] = useState<string>(
-		orgDetails?.organisationName || '',
-	);
+function OrgQuestions({ orgDetails, onNext }: OrgQuestionsProps): JSX.Element {
 	const [observabilityTool, setObservabilityTool] = useState<string | null>(
 		orgDetails?.observabilityTool || null,
 	);
@@ -66,92 +54,33 @@ function OrgQuestions({
 	);
 	const [isNextDisabled, setIsNextDisabled] = useState<boolean>(true);
 
-	useEffect(() => {
-		setOrganisationName(orgDetails.organisationName);
-	}, [orgDetails.organisationName]);
-
-	const [isLoading, setIsLoading] = useState<boolean>(false);
-
 	const [usesOtel, setUsesOtel] = useState<boolean | null>(orgDetails.usesOtel);
+	const [migrationTimeline, setMigrationTimeline] = useState<string | null>(
+		orgDetails?.migrationTimeline || null,
+	);
 
-	const handleOrgNameUpdate = async (): Promise<void> => {
+	const showMigrationQuestion =
+		observabilityTool !== null && observabilityTool !== 'None';
+
+	const handleNext = (): void => {
 		const usesObservability =
 			!observabilityTool?.includes('None') && observabilityTool !== null;
 
-		/* Early bailout if orgData is not set or if the organisation name is not set or if the organisation name is empty or if the organisation name is the same as the one in the orgData */
-		if (
-			!currentOrgData ||
-			!organisationName ||
-			organisationName === '' ||
-			orgDetails.organisationName === organisationName
-		) {
-			logEvent('Org Onboarding: Answered', {
-				usesObservability,
-				observabilityTool,
-				otherTool,
-				usesOtel,
-			});
+		logEvent('Org Onboarding: Answered', {
+			usesObservability,
+			observabilityTool,
+			otherTool,
+			usesOtel,
+			migrationTimeline,
+		});
 
-			onNext({
-				organisationName,
-				usesObservability,
-				observabilityTool,
-				otherTool,
-				usesOtel,
-			});
-
-			return;
-		}
-
-		try {
-			setIsLoading(true);
-			const { statusCode, error } = await editOrg({
-				displayName: organisationName,
-				orgId: currentOrgData.id,
-			});
-			if (statusCode === 204) {
-				updateOrg(currentOrgData?.id, organisationName);
-
-				logEvent('Org Onboarding: Org Name Updated', {
-					organisationName,
-				});
-
-				logEvent('Org Onboarding: Answered', {
-					usesObservability,
-					observabilityTool,
-					otherTool,
-					usesOtel,
-				});
-
-				onNext({
-					organisationName,
-					usesObservability,
-					observabilityTool,
-					otherTool,
-					usesOtel,
-				});
-			} else {
-				logEvent('Org Onboarding: Org Name Update Failed', {
-					organisationName: orgDetails.organisationName,
-				});
-
-				notifications.error({
-					message:
-						error ||
-						t('something_went_wrong', {
-							ns: 'common',
-						}),
-				});
-			}
-			setIsLoading(false);
-		} catch (error) {
-			setIsLoading(false);
-			notifications.error({
-				message: t('something_went_wrong', {
-					ns: 'common',
-				}),
-			});
-		}
+		onNext({
+			usesObservability,
+			observabilityTool,
+			otherTool,
+			usesOtel,
+			migrationTimeline,
+		});
 	};
 
 	const isValidUsesObservability = (): boolean => {
@@ -173,22 +102,29 @@ function OrgQuestions({
 
 	useEffect(() => {
 		const isValidObservability = isValidUsesObservability();
+		const isMigrationValid = !showMigrationQuestion || migrationTimeline !== null;
 
-		if (organisationName !== '' && usesOtel !== null && isValidObservability) {
+		if (usesOtel !== null && isValidObservability && isMigrationValid) {
 			setIsNextDisabled(false);
 		} else {
 			setIsNextDisabled(true);
 		}
 		// eslint-disable-next-line react-hooks/exhaustive-deps
-	}, [organisationName, usesOtel, observabilityTool, otherTool]);
+	}, [
+		usesOtel,
+		observabilityTool,
+		otherTool,
+		migrationTimeline,
+		showMigrationQuestion,
+	]);
 
-	const createObservabilityToolHandler = (tool: string) => (
-		checked: boolean,
-	): void => {
-		if (checked) {
-			setObservabilityTool(tool);
-		} else if (observabilityTool === tool) {
-			setObservabilityTool(null);
+	const handleObservabilityToolChange = (value: string): void => {
+		setObservabilityTool(value);
+		if (value !== 'Others') {
+			setOtherTool('');
+		}
+		if (value === 'None') {
+			setMigrationTimeline(null);
 		}
 	};
 
@@ -196,10 +132,6 @@ function OrgQuestions({
 		setUsesOtel(value === 'yes');
 	};
 
-	const handleOnNext = (): void => {
-		handleOrgNameUpdate();
-	};
-
 	return (
 		<div className="questions-container">
 			<div className="onboarding-header-section">
@@ -214,40 +146,24 @@ function OrgQuestions({
 
 			<div className="questions-form-container">
 				<div className="questions-form">
-					<div className="form-group">
-						<label className="question" htmlFor="organisationName">
-							Name of your company
-						</label>
-						<Input
-							type="text"
-							name="organisationName"
-							id="organisationName"
-							placeholder="e.g. Simpsonville"
-							autoComplete="off"
-							value={organisationName}
-							onChange={(e): void => setOrganisationName(e.target.value)}
-						/>
-					</div>
-
 					<div className="form-group">
 						<label className="question" htmlFor="observabilityTool">
 							Which observability tool do you currently use?
 						</label>
-						<div className="observability-tools-checkbox-container">
+						<RadioGroup
+							value={observabilityTool || ''}
+							onValueChange={handleObservabilityToolChange}
+							className="observability-tools-radio-container"
+						>
 							{Object.entries(observabilityTools).map(([tool, label]) => {
 								if (tool === 'Others') {
 									return (
 										<div
 											key={tool}
-											className="checkbox-item observability-tool-checkbox-item observability-tool-others-item"
+											className="radio-item observability-tool-radio-item observability-tool-others-item"
 										>
-											<Checkbox
-												id={`checkbox-${tool}`}
-												checked={observabilityTool === tool}
-												onCheckedChange={createObservabilityToolHandler(tool)}
-												labelName={observabilityTool === 'Others' ? '' : label}
-											/>
-											{observabilityTool === 'Others' && (
+											<RadioGroupItem value={tool} id={`radio-${tool}`} />
+											{observabilityTool === 'Others' ? (
 												<Input
 													type="text"
 													className="onboarding-questionaire-other-input"
@@ -256,55 +172,60 @@ function OrgQuestions({
 													autoFocus
 													onChange={(e): void => setOtherTool(e.target.value)}
 												/>
+											) : (
+												<RadioGroupLabel htmlFor={`radio-${tool}`}>{label}</RadioGroupLabel>
 											)}
 										</div>
 									);
 								}
 								return (
-									<div
-										key={tool}
-										className="checkbox-item observability-tool-checkbox-item"
-									>
-										<Checkbox
-											id={`checkbox-${tool}`}
-											checked={observabilityTool === tool}
-											onCheckedChange={createObservabilityToolHandler(tool)}
-											labelName={label}
-										/>
+									<div key={tool} className="radio-item observability-tool-radio-item">
+										<RadioGroupItem value={tool} id={`radio-${tool}`} />
+										<RadioGroupLabel htmlFor={`radio-${tool}`}>{label}</RadioGroupLabel>
 									</div>
 								);
 							})}
-						</div>
+						</RadioGroup>
 					</div>
 
+					{showMigrationQuestion && (
+						<div className="form-group">
+							<div className="question">
+								What is your timeline for migrating to SigNoz?
+							</div>
+							<RadioGroup
+								value={migrationTimeline || ''}
+								onValueChange={setMigrationTimeline}
+								className="migration-timeline-radio-container"
+							>
+								{Object.entries(migrationTimelineOptions).map(([key, label]) => (
+									<div key={key} className="radio-item migration-timeline-radio-item">
+										<RadioGroupItem value={key} id={`radio-migration-${key}`} />
+										<RadioGroupLabel htmlFor={`radio-migration-${key}`}>
+											{label}
+										</RadioGroupLabel>
+									</div>
+								))}
+							</RadioGroup>
+						</div>
+					)}
+
 					<div className="form-group">
 						<div className="question">Do you already use OpenTelemetry?</div>
-						<div className="opentelemetry-radio-container">
-							<Radio.Group
-								value={((): string | undefined => {
-									if (usesOtel === true) {
-										return 'yes';
-									}
-									if (usesOtel === false) {
-										return 'no';
-									}
-									return undefined;
-								})()}
-								onChange={(e: RadioChangeEvent): void =>
-									handleOtelChange(e.target.value)
-								}
-								className="opentelemetry-radio-group"
-							>
-								<div className="opentelemetry-radio-items-wrapper">
-									<Radio value="yes" className="opentelemetry-radio-item">
-										Yes
-									</Radio>
-									<Radio value="no" className="opentelemetry-radio-item">
-										No
-									</Radio>
-								</div>
-							</Radio.Group>
-						</div>
+						<RadioGroup
+							value={usesOtel === true ? 'yes' : usesOtel === false ? 'no' : ''}
+							onValueChange={handleOtelChange}
+							className="opentelemetry-radio-container"
+						>
+							<div className="radio-item opentelemetry-radio-item">
+								<RadioGroupItem value="yes" id="radio-otel-yes" />
+								<RadioGroupLabel htmlFor="radio-otel-yes">Yes</RadioGroupLabel>
+							</div>
+							<div className="radio-item opentelemetry-radio-item">
+								<RadioGroupItem value="no" id="radio-otel-no" />
+								<RadioGroupLabel htmlFor="radio-otel-no">No</RadioGroupLabel>
+							</div>
+						</RadioGroup>
 					</div>
 				</div>
 
@@ -312,15 +233,9 @@ function OrgQuestions({
 					variant="solid"
 					color="primary"
 					className={`onboarding-next-button ${isNextDisabled ? 'disabled' : ''}`}
-					onClick={handleOnNext}
+					onClick={handleNext}
 					disabled={isNextDisabled}
-					suffixIcon={
-						isLoading ? (
-							<Loader2 className="animate-spin" size={12} />
-						) : (
-							<ArrowRight size={12} />
-						)
-					}
+					suffixIcon={<ArrowRight size={12} />}
 				>
 					Next
 				</Button>

frontend/src/container/OnboardingQuestionaire/__tests__/OnboardingQuestionaire.test.tsx

@@ -69,7 +69,7 @@ describe('OnboardingQuestionaire Component', () => {
 			render(<OnboardingQuestionaire />);
 
 			expect(screen.getByText(/welcome to signoz cloud/i)).toBeInTheDocument();
-			expect(screen.getByLabelText(/name of your company/i)).toBeInTheDocument();
+
 			expect(
 				screen.getByText(/which observability tool do you currently use/i),
 			).toBeInTheDocument();
@@ -86,15 +86,12 @@ describe('OnboardingQuestionaire Component', () => {
 			const user = userEvent.setup({ pointerEventsCheck: 0 });
 			render(<OnboardingQuestionaire />);
 
-			const orgNameInput = screen.getByLabelText(/name of your company/i);
-			await user.clear(orgNameInput);
-			await user.type(orgNameInput, 'Test Company');
-
 			const datadogCheckbox = screen.getByLabelText(/datadog/i);
 			await user.click(datadogCheckbox);
 
 			const otelYes = screen.getByRole('radio', { name: /yes/i });
 			await user.click(otelYes);
+			await user.click(screen.getByLabelText(/just exploring/i));
 
 			const nextButton = await screen.findByRole('button', { name: /next/i });
 			expect(nextButton).not.toBeDisabled();
@@ -112,15 +109,38 @@ describe('OnboardingQuestionaire Component', () => {
 			).toBeInTheDocument();
 		});
 
+		it('shows migration timeline options only when specific observability tools are selected', async () => {
+			const user = userEvent.setup({ pointerEventsCheck: 0 });
+			render(<OnboardingQuestionaire />);
+
+			// Initially not visible
+			expect(
+				screen.queryByText(/What is your timeline for migrating to SigNoz/i),
+			).not.toBeInTheDocument();
+
+			const datadogCheckbox = screen.getByLabelText(/datadog/i);
+			await user.click(datadogCheckbox);
+
+			expect(
+				await screen.findByText(/What is your timeline for migrating to SigNoz/i),
+			).toBeInTheDocument();
+
+			// Not visible when None is selected
+			const noneCheckbox = screen.getByLabelText(/none\/starting fresh/i);
+			await user.click(noneCheckbox);
+
+			expect(
+				screen.queryByText(/What is your timeline for migrating to SigNoz/i),
+			).not.toBeInTheDocument();
+		});
+
 		it('proceeds to step 2 when next is clicked', async () => {
 			const user = userEvent.setup({ pointerEventsCheck: 0 });
 			render(<OnboardingQuestionaire />);
 
-			const orgNameInput = screen.getByLabelText(/name of your company/i);
-			await user.clear(orgNameInput);
-			await user.type(orgNameInput, 'Test Company');
 			await user.click(screen.getByLabelText(/datadog/i));
 			await user.click(screen.getByRole('radio', { name: /yes/i }));
+			await user.click(screen.getByLabelText(/just exploring/i));
 
 			const nextButton = screen.getByRole('button', { name: /next/i });
 			await user.click(nextButton);
@@ -137,11 +157,10 @@ describe('OnboardingQuestionaire Component', () => {
 			render(<OnboardingQuestionaire />);
 
 			// Navigate to step 2
-			const orgNameInput = screen.getByLabelText(/name of your company/i);
-			await user.clear(orgNameInput);
-			await user.type(orgNameInput, 'Test Company');
+
 			await user.click(screen.getByLabelText(/datadog/i));
 			await user.click(screen.getByRole('radio', { name: /yes/i }));
+			await user.click(screen.getByLabelText(/just exploring/i));
 			await user.click(screen.getByRole('button', { name: /next/i }));
 
 			expect(
@@ -157,11 +176,10 @@ describe('OnboardingQuestionaire Component', () => {
 			render(<OnboardingQuestionaire />);
 
 			// Navigate to step 2
-			const orgNameInput = screen.getByLabelText(/name of your company/i);
-			await user.clear(orgNameInput);
-			await user.type(orgNameInput, 'Test Company');
+
 			await user.click(screen.getByLabelText(/datadog/i));
 			await user.click(screen.getByRole('radio', { name: /yes/i }));
+			await user.click(screen.getByLabelText(/just exploring/i));
 			await user.click(screen.getByRole('button', { name: /next/i }));
 
 			await waitFor(() => {
@@ -175,11 +193,10 @@ describe('OnboardingQuestionaire Component', () => {
 			render(<OnboardingQuestionaire />);
 
 			// Navigate to step 2
-			const orgNameInput = screen.getByLabelText(/name of your company/i);
-			await user.clear(orgNameInput);
-			await user.type(orgNameInput, 'Test Company');
+
 			await user.click(screen.getByLabelText(/datadog/i));
 			await user.click(screen.getByRole('radio', { name: /yes/i }));
+			await user.click(screen.getByLabelText(/just exploring/i));
 			await user.click(screen.getByRole('button', { name: /next/i }));
 
 			expect(
@@ -203,11 +220,10 @@ describe('OnboardingQuestionaire Component', () => {
 			render(<OnboardingQuestionaire />);
 
 			// Navigate to step 2
-			const orgNameInput = screen.getByLabelText(/name of your company/i);
-			await user.clear(orgNameInput);
-			await user.type(orgNameInput, 'Test Company');
+
 			await user.click(screen.getByLabelText(/datadog/i));
 			await user.click(screen.getByRole('radio', { name: /yes/i }));
+			await user.click(screen.getByLabelText(/just exploring/i));
 			await user.click(screen.getByRole('button', { name: /next/i }));
 
 			expect(
@@ -232,11 +248,10 @@ describe('OnboardingQuestionaire Component', () => {
 			render(<OnboardingQuestionaire />);
 
 			// Navigate through steps 1 and 2
-			const orgNameInput = screen.getByLabelText(/name of your company/i);
-			await user.clear(orgNameInput);
-			await user.type(orgNameInput, 'Test Company');
+
 			await user.click(screen.getByLabelText(/datadog/i));
 			await user.click(screen.getByRole('radio', { name: /yes/i }));
+			await user.click(screen.getByLabelText(/just exploring/i));
 			await user.click(screen.getByRole('button', { name: /next/i }));
 
 			expect(
@@ -267,11 +282,10 @@ describe('OnboardingQuestionaire Component', () => {
 			render(<OnboardingQuestionaire />);
 
 			// Navigate to step 3
-			const orgNameInput = screen.getByLabelText(/name of your company/i);
-			await user.clear(orgNameInput);
-			await user.type(orgNameInput, 'Test Company');
+
 			await user.click(screen.getByLabelText(/datadog/i));
 			await user.click(screen.getByRole('radio', { name: /yes/i }));
+			await user.click(screen.getByLabelText(/just exploring/i));
 			await user.click(screen.getByRole('button', { name: /next/i }));
 
 			expect(
@@ -290,40 +304,4 @@ describe('OnboardingQuestionaire Component', () => {
 			).toBeInTheDocument();
 		});
 	});
-
-	describe('Error Handling', () => {
-		it('handles organization update error gracefully', async () => {
-			const user = userEvent.setup({ pointerEventsCheck: 0 });
-
-			server.use(
-				rest.put(EDIT_ORG_ENDPOINT, (_, res, ctx) =>
-					res(
-						ctx.status(500),
-						ctx.json({
-							error: {
-								code: 'INTERNAL_ERROR',
-								message: 'Failed to update organization',
-							},
-						}),
-					),
-				),
-			);
-
-			render(<OnboardingQuestionaire />);
-
-			const orgNameInput = screen.getByLabelText(/name of your company/i);
-			await user.clear(orgNameInput);
-			await user.type(orgNameInput, 'Test Company');
-			await user.click(screen.getByLabelText(/datadog/i));
-			await user.click(screen.getByRole('radio', { name: /yes/i }));
-
-			const nextButton = screen.getByRole('button', { name: /next/i });
-			await user.click(nextButton);
-
-			// Component should still be functional
-			await waitFor(() => {
-				expect(nextButton).not.toBeDisabled();
-			});
-		});
-	});
 });

frontend/src/container/OnboardingQuestionaire/index.tsx

@@ -23,7 +23,7 @@ import InviteTeamMembers from './InviteTeamMembers/InviteTeamMembers';
 import OptimiseSignozNeeds, {
 	OptimiseSignozDetails,
 } from './OptimiseSignozNeeds/OptimiseSignozNeeds';
-import OrgQuestions, { OrgData, OrgDetails } from './OrgQuestions/OrgQuestions';
+import OrgQuestions, { OrgDetails } from './OrgQuestions/OrgQuestions';
 
 import './OnboardingQuestionaire.styles.scss';
 
@@ -37,11 +37,11 @@ export const showErrorNotification = (
 };
 
 const INITIAL_ORG_DETAILS: OrgDetails = {
-	organisationName: '',
 	usesObservability: true,
 	observabilityTool: '',
 	otherTool: '',
 	usesOtel: null,
+	migrationTimeline: null,
 };
 
 const INITIAL_SIGNOZ_DETAILS: SignozDetails = {
@@ -79,25 +79,11 @@ function OnboardingQuestionaire(): JSX.Element {
 		InviteTeamMembersProps[] | null
 	>(null);
 
-	const [currentOrgData, setCurrentOrgData] = useState<OrgData | null>(null);
-
 	const [
 		updatingOrgOnboardingStatus,
 		setUpdatingOrgOnboardingStatus,
 	] = useState<boolean>(false);
 
-	useEffect(() => {
-		if (org) {
-			setCurrentOrgData(org[0]);
-
-			setOrgDetails({
-				...orgDetails,
-				organisationName: org[0].displayName,
-			});
-		}
-		// eslint-disable-next-line react-hooks/exhaustive-deps
-	}, [org]);
-
 	useEffect(() => {
 		logEvent('Org Onboarding: Started', {
 			org_id: org?.[0]?.id,
@@ -175,6 +161,7 @@ function OnboardingQuestionaire(): JSX.Element {
 					? (orgDetails?.otherTool as string)
 					: (orgDetails?.observabilityTool as string),
 			where_did_you_discover_signoz: signozDetails?.discoverSignoz as string,
+			timeline_for_migrating_to_signoz: orgDetails?.migrationTimeline as string,
 			reasons_for_interest_in_signoz: signozDetails?.interestInSignoz?.includes(
 				'Others',
 			)
@@ -208,7 +195,6 @@ function OnboardingQuestionaire(): JSX.Element {
 			<div className="onboarding-questionaire-content">
 				{currentStep === 1 && (
 					<OrgQuestions
-						currentOrgData={currentOrgData}
 						orgDetails={{
 							...orgDetails,
 							usesOtel: orgDetails.usesOtel ?? null,

frontend/src/container/PanelWrapper/constants.ts

@@ -1,21 +1,22 @@
 import { PANEL_TYPES } from 'constants/queryBuilder';
+import BarPanel from 'container/DashboardContainer/visualization/panels/BarPanel/BarPanel';
 
+import TimeSeriesPanel from '../DashboardContainer/visualization/panels/TimeSeriesPanel/TimeSeriesPanel';
 import HistogramPanelWrapper from './HistogramPanelWrapper';
 import ListPanelWrapper from './ListPanelWrapper';
 import PiePanelWrapper from './PiePanelWrapper';
 import TablePanelWrapper from './TablePanelWrapper';
-import UplotPanelWrapper from './UplotPanelWrapper';
 import ValuePanelWrapper from './ValuePanelWrapper';
 
 export const PanelTypeVsPanelWrapper = {
-	[PANEL_TYPES.TIME_SERIES]: UplotPanelWrapper,
+	[PANEL_TYPES.TIME_SERIES]: TimeSeriesPanel,
 	[PANEL_TYPES.TABLE]: TablePanelWrapper,
 	[PANEL_TYPES.LIST]: ListPanelWrapper,
 	[PANEL_TYPES.VALUE]: ValuePanelWrapper,
 	[PANEL_TYPES.TRACE]: null,
 	[PANEL_TYPES.EMPTY_WIDGET]: null,
 	[PANEL_TYPES.PIE]: PiePanelWrapper,
-	[PANEL_TYPES.BAR]: UplotPanelWrapper,
+	[PANEL_TYPES.BAR]: BarPanel,
 	[PANEL_TYPES.HISTOGRAM]: HistogramPanelWrapper,
 };
 

frontend/src/container/PanelWrapper/panelWrapper.types.ts

@@ -5,16 +5,12 @@ import { PanelMode } from 'container/DashboardContainer/visualization/panels/typ
 import { WidgetGraphComponentProps } from 'container/GridCardLayout/GridCard/types';
 import { RowData } from 'lib/query/createTableColumnsFromQuery';
 import { OnClickPluginOpts } from 'lib/uPlotLib/plugins/onClickPlugin';
-import { SuccessResponse } from 'types/api';
 import { Widgets } from 'types/api/dashboard/getAll';
-import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
+import { MetricQueryRangeSuccessResponse } from 'types/api/metrics/getQueryRange';
 import { QueryData } from 'types/api/widgets/getQuery';
 
 export type PanelWrapperProps = {
-	queryResponse: UseQueryResult<
-		SuccessResponse<MetricRangePayloadProps, unknown>,
-		Error
-	>;
+	queryResponse: UseQueryResult<MetricQueryRangeSuccessResponse, Error>;
 	widget: Widgets;
 	setRequestData?: WidgetGraphComponentProps['setRequestData'];
 	isFullViewMode?: boolean;

frontend/src/hooks/dashboard/__test__/useIsPanelWaitingOnVariable.test.ts

@@ -0,0 +1,316 @@
+import { act, renderHook } from '@testing-library/react';
+import { dashboardVariablesStore } from 'providers/Dashboard/store/dashboardVariables/dashboardVariablesStore';
+import { IDashboardVariablesStoreState } from 'providers/Dashboard/store/dashboardVariables/dashboardVariablesStoreTypes';
+import {
+	VariableFetchState,
+	variableFetchStore,
+} from 'providers/Dashboard/store/variableFetchStore';
+import { IDashboardVariable } from 'types/api/dashboard/getAll';
+
+import { useIsPanelWaitingOnVariable } from '../useVariableFetchState';
+
+function makeVariable(
+	overrides: Partial<IDashboardVariable> & { id: string },
+): IDashboardVariable {
+	return {
+		name: overrides.id,
+		description: '',
+		type: 'QUERY',
+		sort: 'DISABLED',
+		multiSelect: false,
+		showALLOption: false,
+		...overrides,
+	};
+}
+
+function resetStores(): void {
+	variableFetchStore.set(() => ({
+		states: {},
+		lastUpdated: {},
+		cycleIds: {},
+	}));
+	dashboardVariablesStore.set(() => ({
+		dashboardId: '',
+		variables: {},
+		sortedVariablesArray: [],
+		dependencyData: null,
+		variableTypes: {},
+		dynamicVariableOrder: [],
+	}));
+}
+
+function setFetchStates(states: Record<string, VariableFetchState>): void {
+	variableFetchStore.set(() => ({
+		states,
+		lastUpdated: {},
+		cycleIds: {},
+	}));
+}
+
+function setDashboardVariables(
+	overrides: Partial<IDashboardVariablesStoreState>,
+): void {
+	dashboardVariablesStore.set(() => ({
+		dashboardId: '',
+		variables: {},
+		sortedVariablesArray: [],
+		dependencyData: null,
+		variableTypes: {},
+		dynamicVariableOrder: [],
+		...overrides,
+	}));
+}
+
+describe('useIsPanelWaitingOnVariable', () => {
+	beforeEach(() => {
+		resetStores();
+	});
+
+	it('should return false when variableNames is empty', () => {
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable([]));
+		expect(result.current).toBe(false);
+	});
+
+	it('should return false when all referenced variables are idle', () => {
+		setFetchStates({ a: 'idle', b: 'idle' });
+		setDashboardVariables({
+			variables: {
+				a: makeVariable({ id: 'a', selectedValue: 'val1' }),
+				b: makeVariable({ id: 'b', selectedValue: 'val2' }),
+			},
+			variableTypes: { a: 'QUERY', b: 'QUERY' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['a', 'b']));
+		expect(result.current).toBe(false);
+	});
+
+	it('should return true when a variable is loading with empty selectedValue', () => {
+		setFetchStates({ a: 'loading' });
+		setDashboardVariables({
+			variables: {
+				a: makeVariable({ id: 'a', selectedValue: undefined }),
+			},
+			variableTypes: { a: 'QUERY' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['a']));
+		expect(result.current).toBe(true);
+	});
+
+	it('should return true when a variable is waiting with empty selectedValue', () => {
+		setFetchStates({ a: 'waiting' });
+		setDashboardVariables({
+			variables: {
+				a: makeVariable({ id: 'a', selectedValue: '' }),
+			},
+			variableTypes: { a: 'QUERY' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['a']));
+		expect(result.current).toBe(true);
+	});
+
+	it('should return true when a variable is revalidating with empty selectedValue', () => {
+		setFetchStates({ a: 'revalidating' });
+		setDashboardVariables({
+			variables: {
+				a: makeVariable({ id: 'a', selectedValue: undefined }),
+			},
+			variableTypes: { a: 'QUERY' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['a']));
+		expect(result.current).toBe(true);
+	});
+
+	it('should return false when a variable is loading but has a selectedValue', () => {
+		setFetchStates({ a: 'loading' });
+		setDashboardVariables({
+			variables: {
+				a: makeVariable({ id: 'a', selectedValue: 'some-value' }),
+			},
+			variableTypes: { a: 'QUERY' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['a']));
+		expect(result.current).toBe(false);
+	});
+
+	it('should return true for DYNAMIC variable with allSelected=true that is loading', () => {
+		setFetchStates({ dyn: 'loading' });
+		setDashboardVariables({
+			variables: {
+				dyn: makeVariable({
+					id: 'dyn',
+					type: 'DYNAMIC',
+					selectedValue: 'some-val',
+					allSelected: true,
+				}),
+			},
+			variableTypes: { dyn: 'DYNAMIC' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['dyn']));
+		expect(result.current).toBe(true);
+	});
+
+	it('should return true for DYNAMIC variable with allSelected=true that is waiting', () => {
+		setFetchStates({ dyn: 'waiting' });
+		setDashboardVariables({
+			variables: {
+				dyn: makeVariable({
+					id: 'dyn',
+					type: 'DYNAMIC',
+					selectedValue: 'val',
+					allSelected: true,
+				}),
+			},
+			variableTypes: { dyn: 'DYNAMIC' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['dyn']));
+		expect(result.current).toBe(true);
+	});
+
+	it('should return false for DYNAMIC variable with allSelected=true that is idle', () => {
+		setFetchStates({ dyn: 'idle' });
+		setDashboardVariables({
+			variables: {
+				dyn: makeVariable({
+					id: 'dyn',
+					type: 'DYNAMIC',
+					selectedValue: 'val',
+					allSelected: true,
+				}),
+			},
+			variableTypes: { dyn: 'DYNAMIC' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['dyn']));
+		expect(result.current).toBe(false);
+	});
+
+	it('should return false for non-DYNAMIC variable with allSelected=false and non-empty value that is loading', () => {
+		setFetchStates({ a: 'loading' });
+		setDashboardVariables({
+			variables: {
+				a: makeVariable({
+					id: 'a',
+					selectedValue: 'val',
+					allSelected: false,
+				}),
+			},
+			variableTypes: { a: 'QUERY' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['a']));
+		expect(result.current).toBe(false);
+	});
+
+	it('should return true if any one of multiple variables is blocking', () => {
+		setFetchStates({ a: 'idle', b: 'loading' });
+		setDashboardVariables({
+			variables: {
+				a: makeVariable({ id: 'a', selectedValue: 'val' }),
+				b: makeVariable({ id: 'b', selectedValue: undefined }),
+			},
+			variableTypes: { a: 'QUERY', b: 'QUERY' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['a', 'b']));
+		expect(result.current).toBe(true);
+	});
+
+	it('should return false when variable has no entry in fetch store (treated as idle)', () => {
+		setFetchStates({}); // no state entry for 'a'
+		setDashboardVariables({
+			variables: {
+				a: makeVariable({ id: 'a', selectedValue: 'val' }),
+			},
+			variableTypes: { a: 'QUERY' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['a']));
+		expect(result.current).toBe(false);
+	});
+
+	it('should return false when variable is in error state with empty selectedValue', () => {
+		setFetchStates({ a: 'error' });
+		setDashboardVariables({
+			variables: {
+				a: makeVariable({ id: 'a', selectedValue: undefined }),
+			},
+			variableTypes: { a: 'QUERY' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['a']));
+		expect(result.current).toBe(false);
+	});
+
+	it('should react to store updates', () => {
+		setFetchStates({ a: 'loading' });
+		setDashboardVariables({
+			variables: {
+				a: makeVariable({ id: 'a', selectedValue: undefined }),
+			},
+			variableTypes: { a: 'QUERY' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['a']));
+		expect(result.current).toBe(true);
+
+		// Simulate variable fetch completing
+		act(() => {
+			variableFetchStore.update((d) => {
+				d.states.a = 'idle';
+			});
+		});
+
+		expect(result.current).toBe(false);
+	});
+
+	it('should handle DYNAMIC variable with allSelected=false and empty selectedValue as blocking', () => {
+		setFetchStates({ dyn: 'loading' });
+		setDashboardVariables({
+			variables: {
+				dyn: makeVariable({
+					id: 'dyn',
+					type: 'DYNAMIC',
+					selectedValue: undefined,
+					allSelected: false,
+				}),
+			},
+			variableTypes: { dyn: 'DYNAMIC' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['dyn']));
+		expect(result.current).toBe(true);
+	});
+
+	it('should handle variable with array selectedValue as non-blocking when loading', () => {
+		setFetchStates({ a: 'loading' });
+		setDashboardVariables({
+			variables: {
+				a: makeVariable({ id: 'a', selectedValue: ['val1', 'val2'] }),
+			},
+			variableTypes: { a: 'QUERY' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['a']));
+		expect(result.current).toBe(false);
+	});
+
+	it('should handle variable with empty array selectedValue as blocking when loading', () => {
+		setFetchStates({ a: 'loading' });
+		setDashboardVariables({
+			variables: {
+				a: makeVariable({ id: 'a', selectedValue: [] }),
+			},
+			variableTypes: { a: 'QUERY' },
+		});
+
+		const { result } = renderHook(() => useIsPanelWaitingOnVariable(['a']));
+		expect(result.current).toBe(true);
+	});
+});

frontend/src/hooks/dashboard/useVariableFetchState.ts

@@ -0,0 +1,153 @@
+import { useCallback, useMemo, useRef, useSyncExternalStore } from 'react';
+import isEmpty from 'lodash-es/isEmpty';
+import {
+	IVariableFetchStoreState,
+	VariableFetchState,
+	variableFetchStore,
+} from 'providers/Dashboard/store/variableFetchStore';
+
+import { useDashboardVariablesSelector } from './useDashboardVariables';
+
+/**
+ * Generic selector hook for the variable fetch store.
+ * Same pattern as useDashboardVariablesSelector.
+ */
+const useVariableFetchSelector = <T>(
+	selector: (state: IVariableFetchStoreState) => T,
+): T => {
+	const selectorRef = useRef(selector);
+	selectorRef.current = selector;
+
+	const getSnapshot = useCallback(
+		() => selectorRef.current(variableFetchStore.getSnapshot()),
+		[],
+	);
+
+	return useSyncExternalStore(variableFetchStore.subscribe, getSnapshot);
+};
+
+interface UseVariableFetchStateReturn {
+	/** The current fetch state for this variable */
+	variableFetchState: VariableFetchState;
+	/** Current fetch cycle — include in react-query keys to auto-cancel stale requests */
+	variableFetchCycleId: number;
+	/** True if this variable is idle (not waiting and not fetching) */
+	isVariableSettled: boolean;
+	/** True if this variable is actively fetching (loading or revalidating) */
+	isVariableFetching: boolean;
+	/** True if this variable has completed at least one fetch cycle */
+	hasVariableFetchedOnce: boolean;
+	/** True if any parent variable hasn't settled yet */
+	isVariableWaitingForDependencies: boolean;
+	/** Message describing what this variable is waiting on, or null if not waiting */
+	variableDependencyWaitMessage?: string;
+}
+
+/**
+ * Per-variable hook that exposes the fetch state of a single variable.
+ * Reusable by both variable input components and panel components.
+ *
+ * Subscribes to both variableFetchStore (for states) and
+ * dashboardVariablesStore (for parent graph) to compute derived values.
+ */
+export function useVariableFetchState(
+	variableName: string,
+): UseVariableFetchStateReturn {
+	// This variable's fetch state (loading, waiting, idle, etc.)
+	const variableFetchState = useVariableFetchSelector(
+		(s) => s.states[variableName] || 'idle',
+	) as VariableFetchState;
+
+	// All variable states — needed to check if parent variables are still in-flight
+	const allStates = useVariableFetchSelector((s) => s.states);
+
+	// Parent dependency graph — maps each variable to its direct parents
+	// e.g. { "childVariable": ["parentVariable"] } means "childVariable" depends on "parentVariable"
+	const parentGraph = useDashboardVariablesSelector(
+		(s) => s.dependencyData?.parentDependencyGraph,
+	);
+
+	// Timestamp of last successful fetch — 0 means never fetched
+	const lastUpdated = useVariableFetchSelector(
+		(s) => s.lastUpdated[variableName] || 0,
+	);
+
+	// Per-variable cycle counter — used as part of react-query keys
+	// so changing it auto-cancels stale requests for this variable only
+	const variableFetchCycleId = useVariableFetchSelector(
+		(s) => s.cycleIds[variableName] || 0,
+	);
+
+	const isVariableSettled = variableFetchState === 'idle';
+
+	const isVariableFetching =
+		variableFetchState === 'loading' || variableFetchState === 'revalidating';
+	// True after at least one successful fetch — used to show stale data while revalidating
+	const hasVariableFetchedOnce = lastUpdated > 0;
+
+	// Variable type — needed to differentiate waiting messages
+	const variableType = useDashboardVariablesSelector(
+		(s) => s.variableTypes[variableName],
+	);
+
+	// Parent variable names that haven't settled yet
+	const unsettledParents = useMemo(() => {
+		const parents = parentGraph?.[variableName] || [];
+		return parents.filter((p) => (allStates[p] || 'idle') !== 'idle');
+	}, [parentGraph, variableName, allStates]);
+
+	const isVariableWaitingForDependencies = unsettledParents.length > 0;
+
+	const variableDependencyWaitMessage = useMemo(() => {
+		if (variableFetchState !== 'waiting') {
+			return;
+		}
+
+		if (variableType === 'DYNAMIC') {
+			return 'Waiting for all query variable options to load.';
+		}
+
+		if (unsettledParents.length === 0) {
+			return;
+		}
+
+		const quoted = unsettledParents.map((p) => `"${p}"`);
+		const names =
+			quoted.length > 1
+				? `${quoted.slice(0, -1).join(', ')} and ${quoted[quoted.length - 1]}`
+				: quoted[0];
+		return `Waiting for options of ${names} to load.`;
+	}, [variableFetchState, variableType, unsettledParents]);
+
+	return {
+		variableFetchState,
+		isVariableSettled,
+		isVariableWaitingForDependencies,
+		variableDependencyWaitMessage,
+		isVariableFetching,
+		hasVariableFetchedOnce,
+		variableFetchCycleId,
+	};
+}
+
+export function useIsPanelWaitingOnVariable(variableNames: string[]): boolean {
+	const states = useVariableFetchSelector((s) => s.states);
+	const dashboardVariables = useDashboardVariablesSelector((s) => s.variables);
+	const variableTypesMap = useDashboardVariablesSelector((s) => s.variableTypes);
+
+	return variableNames.some((name) => {
+		const variableFetchState = states[name];
+		const { selectedValue, allSelected } = dashboardVariables?.[name] || {};
+
+		const isVariableInFetchingOrWaitingState =
+			variableFetchState === 'loading' ||
+			variableFetchState === 'revalidating' ||
+			variableFetchState === 'waiting';
+
+		if (variableTypesMap[name] === 'DYNAMIC' && allSelected) {
+			return isVariableInFetchingOrWaitingState;
+		}
+
+		return isEmpty(selectedValue) ? isVariableInFetchingOrWaitingState : false;
+	});
+}

frontend/src/hooks/dashboard/utils.ts

@@ -3,6 +3,7 @@ import { TelemetryFieldKey } from 'api/v5/v5';
 import { PANEL_TYPES } from 'constants/queryBuilder';
 import { convertKeysToColumnFields } from 'container/LogsExplorerList/utils';
 import { placeWidgetAtBottom } from 'container/NewWidget/utils';
+import { textContainsVariableReference } from 'lib/dashboardVariables/variableReference';
 import { isArray } from 'lodash-es';
 import {
 	Dashboard,
@@ -116,10 +117,17 @@ export const createDynamicVariableToWidgetsMap = (
 						dynamicVariables.forEach((variable) => {
 							if (
 								variable.dynamicVariablesAttribute &&
+								variable.name &&
 								filter.key?.key === variable.dynamicVariablesAttribute &&
-								((isArray(filter.value) &&
-									filter.value.includes(`$${variable.name}`)) ||
-									filter.value === `$${variable.name}`) &&
+								(isArray(filter.value)
+									? filter.value.some(
+											(v) =>
+												typeof v === 'string' &&
+												variable.name &&
+												textContainsVariableReference(v, variable.name),
+									  )
+									: typeof filter.value === 'string' &&
+									  textContainsVariableReference(filter.value, variable.name)) &&
 								!dynamicVariableToWidgetsMap[variable.id].includes(widget.id)
 							) {
 								dynamicVariableToWidgetsMap[variable.id].push(widget.id);
@@ -132,7 +140,12 @@ export const createDynamicVariableToWidgetsMap = (
 						dynamicVariables.forEach((variable) => {
 							if (
 								variable.dynamicVariablesAttribute &&
-								queryData.filter?.expression?.includes(`$${variable.name}`) &&
+								variable.name &&
+								queryData.filter?.expression &&
+								textContainsVariableReference(
+									queryData.filter.expression,
+									variable.name,
+								) &&
 								!dynamicVariableToWidgetsMap[variable.id].includes(widget.id)
 							) {
 								dynamicVariableToWidgetsMap[variable.id].push(widget.id);
@@ -149,7 +162,9 @@ export const createDynamicVariableToWidgetsMap = (
 					dynamicVariables.forEach((variable) => {
 						if (
 							variable.dynamicVariablesAttribute &&
-							promqlQuery.query?.includes(`$${variable.name}`) &&
+							variable.name &&
+							promqlQuery.query &&
+							textContainsVariableReference(promqlQuery.query, variable.name) &&
 							!dynamicVariableToWidgetsMap[variable.id].includes(widget.id)
 						) {
 							dynamicVariableToWidgetsMap[variable.id].push(widget.id);
@@ -165,7 +180,9 @@ export const createDynamicVariableToWidgetsMap = (
 					dynamicVariables.forEach((variable) => {
 						if (
 							variable.dynamicVariablesAttribute &&
-							clickhouseQuery.query?.includes(`$${variable.name}`) &&
+							variable.name &&
+							clickhouseQuery.query &&
+							textContainsVariableReference(clickhouseQuery.query, variable.name) &&
 							!dynamicVariableToWidgetsMap[variable.id].includes(widget.id)
 						) {
 							dynamicVariableToWidgetsMap[variable.id].push(widget.id);

frontend/src/hooks/queryBuilder/useGetQueryRange.ts

@@ -10,13 +10,12 @@ import {
 	GetQueryResultsProps,
 } from 'lib/dashboard/getQueryResults';
 import getStartEndRangeTime from 'lib/getStartEndRangeTime';
-import { SuccessResponse, Warning } from 'types/api';
 import APIError from 'types/api/error';
-import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
+import { MetricQueryRangeSuccessResponse } from 'types/api/metrics/getQueryRange';
 import { DataSource } from 'types/common/queryBuilder';
 
 type UseGetQueryRangeOptions = UseQueryOptions<
-	SuccessResponse<MetricRangePayloadProps> & { warning?: Warning },
+	MetricQueryRangeSuccessResponse,
 	APIError | Error
 >;
 
@@ -30,10 +29,7 @@ type UseGetQueryRange = (
 		widgetIndex: number;
 		publicDashboardId: string;
 	},
-) => UseQueryResult<
-	SuccessResponse<MetricRangePayloadProps> & { warning?: Warning },
-	Error
->;
+) => UseQueryResult<MetricQueryRangeSuccessResponse, Error>;
 
 export const useGetQueryRange: UseGetQueryRange = (
 	requestData,
@@ -145,10 +141,7 @@ export const useGetQueryRange: UseGetQueryRange = (
 		};
 	}, [options?.retry]);
 
-	return useQuery<
-		SuccessResponse<MetricRangePayloadProps> & { warning?: Warning },
-		APIError | Error
-	>({
+	return useQuery<MetricQueryRangeSuccessResponse, APIError | Error>({
 		queryFn: async ({ signal }) =>
 			GetMetricQueryRange(
 				modifiedRequestData,

frontend/src/hooks/useCopyToClipboard.ts

@@ -0,0 +1,61 @@
+import { useCallback, useEffect, useRef, useState } from 'react';
+
+const DEFAULT_COPIED_RESET_MS = 2000;
+
+export interface UseCopyToClipboardOptions {
+	/** How long (ms) to keep "copied" state before resetting. Default 2000. */
+	copiedResetMs?: number;
+}
+
+export type ID = number | string | null;
+
+export interface UseCopyToClipboardReturn {
+	/** Copy text to clipboard. Pass an optional id to track which item was copied (e.g. seriesIndex). */
+	copyToClipboard: (text: string, id?: ID) => void;
+	/** True when something was just copied and still within the reset threshold. */
+	isCopied: boolean;
+	/** The id passed to the last successful copy, or null after reset. Use to show "copied" state for a specific item (e.g. copiedId === item.seriesIndex). */
+	id: ID;
+}
+
+export function useCopyToClipboard(
+	options: UseCopyToClipboardOptions = {},
+): UseCopyToClipboardReturn {
+	const { copiedResetMs = DEFAULT_COPIED_RESET_MS } = options;
+	const [state, setState] = useState<{ isCopied: boolean; id: ID }>({
+		isCopied: false,
+		id: null,
+	});
+	const timeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+
+	useEffect(() => {
+		return (): void => {
+			if (timeoutRef.current) {
+				clearTimeout(timeoutRef.current);
+				timeoutRef.current = null;
+			}
+		};
+	}, []);
+
+	const copyToClipboard = useCallback(
+		(text: string, id?: ID): void => {
+			navigator.clipboard.writeText(text).then(() => {
+				if (timeoutRef.current) {
+					clearTimeout(timeoutRef.current);
+				}
+				setState({ isCopied: true, id: id ?? null });
+				timeoutRef.current = setTimeout(() => {
+					setState({ isCopied: false, id: null });
+					timeoutRef.current = null;
+				}, copiedResetMs);
+			});
+		},
+		[copiedResetMs],
+	);
+
+	return {
+		copyToClipboard,
+		isCopied: state.isCopied,
+		id: state.id,
+	};
+}

frontend/src/lib/dashboard/getQueryResults.ts

@@ -19,7 +19,11 @@ import { Pagination } from 'hooks/queryPagination';
 import { convertNewDataToOld } from 'lib/newQueryBuilder/convertNewDataToOld';
 import { isEmpty } from 'lodash-es';
 import { SuccessResponse, SuccessResponseV2, Warning } from 'types/api';
-import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
+import {
+	MetricQueryRangeSuccessResponse,
+	MetricRangePayloadProps,
+} from 'types/api/metrics/getQueryRange';
+import { ExecStats, MetricRangePayloadV5 } from 'types/api/v5/queryRange';
 import { IBuilderQuery, Query } from 'types/api/queryBuilder/queryBuilderData';
 import { DataSource } from 'types/common/queryBuilder';
 
@@ -205,13 +209,13 @@ export async function GetMetricQueryRange(
 		widgetIndex: number;
 		publicDashboardId: string;
 	},
-): Promise<SuccessResponse<MetricRangePayloadProps> & { warning?: Warning }> {
+): Promise<MetricQueryRangeSuccessResponse> {
 	let legendMap: Record<string, string>;
 	let response:
-		| SuccessResponse<MetricRangePayloadProps>
-		| SuccessResponseV2<MetricRangePayloadV5>
-		| (SuccessResponse<MetricRangePayloadProps> & { warning?: Warning });
+		| MetricQueryRangeSuccessResponse
+		| SuccessResponseV2<MetricRangePayloadV5>;
 	let warning: Warning | undefined;
+	let meta: ExecStats | undefined;
 
 	const panelType = props.originalGraphType || props.graphType;
 
@@ -299,6 +303,7 @@ export async function GetMetricQueryRange(
 			);
 
 			warning = response.payload.warning || undefined;
+			meta = response.payload.meta || undefined;
 		} else {
 			const v5Response = await getQueryRangeV5(
 				v5Result.queryPayload,
@@ -318,6 +323,7 @@ export async function GetMetricQueryRange(
 			);
 
 			warning = response.payload.warning || undefined;
+			meta = response.payload.meta || undefined;
 		}
 	} else {
 		const legacyResult = prepareQueryRangePayload(props);
@@ -384,6 +390,7 @@ export async function GetMetricQueryRange(
 	return {
 		...response,
 		warning,
+		meta,
 	};
 }
 

frontend/src/lib/dashboardVariables/variableReference.test.ts

@@ -0,0 +1,445 @@
+import { IBuilderQuery, Query } from 'types/api/queryBuilder/queryBuilderData';
+import { EQueryType } from 'types/common/dashboard';
+
+import {
+	buildVariableReferencePattern,
+	extractQueryTextStrings,
+	getVariableReferencesInQuery,
+	textContainsVariableReference,
+} from './variableReference';
+
+describe('buildVariableReferencePattern', () => {
+	const varName = 'deployment_environment';
+
+	it.each([
+		['{{.deployment_environment}}', '{{.var}} syntax'],
+		['{{ .deployment_environment }}', '{{.var}} with spaces'],
+		['{{deployment_environment}}', '{{var}} syntax'],
+		['{{ deployment_environment }}', '{{var}} with spaces'],
+		['$deployment_environment', '$var syntax'],
+		['[[deployment_environment]]', '[[var]] syntax'],
+		['[[ deployment_environment ]]', '[[var]] with spaces'],
+	])('matches %s (%s)', (text) => {
+		expect(buildVariableReferencePattern(varName).test(text)).toBe(true);
+	});
+
+	it('does not match partial variable names', () => {
+		const pattern = buildVariableReferencePattern('env');
+		// $env should match at word boundary, but $environment should not match $env
+		expect(pattern.test('$environment')).toBe(false);
+	});
+
+	it('matches $var at word boundary within larger text', () => {
+		const pattern = buildVariableReferencePattern('env');
+		expect(pattern.test('SELECT * WHERE x = $env')).toBe(true);
+		expect(pattern.test('$env AND y = 1')).toBe(true);
+	});
+});
+
+describe('textContainsVariableReference', () => {
+	describe('guard clauses', () => {
+		it('returns false for empty text', () => {
+			expect(textContainsVariableReference('', 'var')).toBe(false);
+		});
+
+		it('returns false for empty variable name', () => {
+			expect(textContainsVariableReference('some text', '')).toBe(false);
+		});
+	});
+
+	describe('all syntax formats', () => {
+		const varName = 'service_name';
+
+		it('detects {{.var}} format', () => {
+			const query = "SELECT * FROM table WHERE service = '{{.service_name}}'";
+			expect(textContainsVariableReference(query, varName)).toBe(true);
+		});
+
+		it('detects {{var}} format', () => {
+			const query = "SELECT * FROM table WHERE service = '{{service_name}}'";
+			expect(textContainsVariableReference(query, varName)).toBe(true);
+		});
+
+		it('detects $var format', () => {
+			const query = "SELECT * FROM table WHERE service = '$service_name'";
+			expect(textContainsVariableReference(query, varName)).toBe(true);
+		});
+
+		it('detects [[var]] format', () => {
+			const query = "SELECT * FROM table WHERE service = '[[service_name]]'";
+			expect(textContainsVariableReference(query, varName)).toBe(true);
+		});
+	});
+
+	describe('embedded in larger text', () => {
+		it('finds variable in a multi-line query', () => {
+			const query = `SELECT JSONExtractString(labels, 'k8s_node_name') AS k8s_node_name
+FROM signoz_metrics.distributed_time_series_v4_1day
+WHERE metric_name = 'k8s_node_cpu_time' AND JSONExtractString(labels, 'k8s_cluster_name') = {{.k8s_cluster_name}}
+GROUP BY k8s_node_name`;
+			expect(textContainsVariableReference(query, 'k8s_cluster_name')).toBe(true);
+			expect(textContainsVariableReference(query, 'k8s_node_name')).toBe(false); // plain text, not a variable reference
+		});
+	});
+
+	describe('no false positives', () => {
+		it('does not match substring of a longer variable name', () => {
+			expect(
+				textContainsVariableReference('$service_name_v2', 'service_name'),
+			).toBe(false);
+		});
+
+		it('does not match plain text that happens to contain the name', () => {
+			expect(
+				textContainsVariableReference(
+					'the service_name column is important',
+					'service_name',
+				),
+			).toBe(false);
+		});
+	});
+});
+
+// ---- Query text extraction & variable reference detection ----
+
+const baseQuery: Query = {
+	id: 'test-query',
+	queryType: EQueryType.QUERY_BUILDER,
+	promql: [],
+	builder: { queryData: [], queryFormulas: [], queryTraceOperator: [] },
+	clickhouse_sql: [],
+};
+
+describe('extractQueryTextStrings', () => {
+	it('returns empty array for query builder with no data', () => {
+		expect(extractQueryTextStrings(baseQuery)).toEqual([]);
+	});
+
+	it('extracts string values from query builder filter items', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.QUERY_BUILDER,
+			builder: {
+				queryData: [
+					({
+						filters: {
+							items: [
+								{ id: '1', op: '=', value: ['$service_name', 'hardcoded'] },
+								{ id: '2', op: '=', value: '$env' },
+							],
+							op: 'AND',
+						},
+					} as unknown) as IBuilderQuery,
+				],
+				queryFormulas: [],
+				queryTraceOperator: [],
+			},
+		};
+
+		const texts = extractQueryTextStrings(query);
+		expect(texts).toEqual(['$service_name', 'hardcoded', '$env']);
+	});
+
+	it('extracts filter expression from query builder', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.QUERY_BUILDER,
+			builder: {
+				queryData: [
+					({
+						filters: { items: [], op: 'AND' },
+						filter: { expression: 'env = $deployment_environment' },
+					} as unknown) as IBuilderQuery,
+				],
+				queryFormulas: [],
+				queryTraceOperator: [],
+			},
+		};
+
+		const texts = extractQueryTextStrings(query);
+		expect(texts).toEqual(['env = $deployment_environment']);
+	});
+
+	it('skips non-string filter values', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.QUERY_BUILDER,
+			builder: {
+				queryData: [
+					({
+						filters: {
+							items: [{ id: '1', op: '=', value: [42, true] }],
+							op: 'AND',
+						},
+					} as unknown) as IBuilderQuery,
+				],
+				queryFormulas: [],
+				queryTraceOperator: [],
+			},
+		};
+
+		expect(extractQueryTextStrings(query)).toEqual([]);
+	});
+
+	it('extracts promql query strings', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.PROM,
+			promql: [
+				{ name: 'A', query: 'up{env="$env"}', legend: '', disabled: false },
+				{ name: 'B', query: 'cpu{ns="$namespace"}', legend: '', disabled: false },
+			],
+		};
+
+		expect(extractQueryTextStrings(query)).toEqual([
+			'up{env="$env"}',
+			'cpu{ns="$namespace"}',
+		]);
+	});
+
+	it('extracts clickhouse sql query strings', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.CLICKHOUSE,
+			clickhouse_sql: [
+				{
+					name: 'A',
+					query: 'SELECT * WHERE env = {{.env}}',
+					legend: '',
+					disabled: false,
+				},
+			],
+		};
+
+		expect(extractQueryTextStrings(query)).toEqual([
+			'SELECT * WHERE env = {{.env}}',
+		]);
+	});
+
+	it('accumulates texts across multiple queryData entries', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.QUERY_BUILDER,
+			builder: {
+				queryData: [
+					({
+						filters: {
+							items: [{ id: '1', op: '=', value: '$env' }],
+							op: 'AND',
+						},
+					} as unknown) as IBuilderQuery,
+					({
+						filters: {
+							items: [{ id: '2', op: '=', value: ['$service_name'] }],
+							op: 'AND',
+						},
+					} as unknown) as IBuilderQuery,
+				],
+				queryFormulas: [],
+				queryTraceOperator: [],
+			},
+		};
+
+		expect(extractQueryTextStrings(query)).toEqual(['$env', '$service_name']);
+	});
+
+	it('collects both filter items and filter expression from the same queryData', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.QUERY_BUILDER,
+			builder: {
+				queryData: [
+					({
+						filters: {
+							items: [{ id: '1', op: '=', value: '$service_name' }],
+							op: 'AND',
+						},
+						filter: { expression: 'env = $deployment_environment' },
+					} as unknown) as IBuilderQuery,
+				],
+				queryFormulas: [],
+				queryTraceOperator: [],
+			},
+		};
+
+		expect(extractQueryTextStrings(query)).toEqual([
+			'$service_name',
+			'env = $deployment_environment',
+		]);
+	});
+
+	it('skips promql entries with empty query strings', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.PROM,
+			promql: [
+				{ name: 'A', query: '', legend: '', disabled: false },
+				{ name: 'B', query: 'up{env="$env"}', legend: '', disabled: false },
+			],
+		};
+
+		expect(extractQueryTextStrings(query)).toEqual(['up{env="$env"}']);
+	});
+
+	it('skips clickhouse entries with empty query strings', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.CLICKHOUSE,
+			clickhouse_sql: [
+				{ name: 'A', query: '', legend: '', disabled: false },
+				{
+					name: 'B',
+					query: 'SELECT * WHERE x = {{.env}}',
+					legend: '',
+					disabled: false,
+				},
+			],
+		};
+
+		expect(extractQueryTextStrings(query)).toEqual([
+			'SELECT * WHERE x = {{.env}}',
+		]);
+	});
+
+	it('returns empty array for unknown query type', () => {
+		const query = {
+			...baseQuery,
+			queryType: ('unknown' as unknown) as EQueryType,
+		};
+		expect(extractQueryTextStrings(query)).toEqual([]);
+	});
+});
+
+describe('getVariableReferencesInQuery', () => {
+	const variableNames = [
+		'deployment_environment',
+		'service_name',
+		'endpoint',
+		'unused_var',
+	];
+
+	it('returns empty array when query has no text', () => {
+		expect(getVariableReferencesInQuery(baseQuery, variableNames)).toEqual([]);
+	});
+
+	it('detects variables referenced in query builder filters', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.QUERY_BUILDER,
+			builder: {
+				queryData: [
+					({
+						filters: {
+							items: [
+								{ id: '1', op: '=', value: '$service_name' },
+								{ id: '2', op: 'IN', value: ['$deployment_environment'] },
+							],
+							op: 'AND',
+						},
+					} as unknown) as IBuilderQuery,
+				],
+				queryFormulas: [],
+				queryTraceOperator: [],
+			},
+		};
+
+		const result = getVariableReferencesInQuery(query, variableNames);
+		expect(result).toEqual(['deployment_environment', 'service_name']);
+	});
+
+	it('detects variables in promql queries', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.PROM,
+			promql: [
+				{
+					name: 'A',
+					query:
+						'http_requests{env="{{.deployment_environment}}", endpoint="$endpoint"}',
+					legend: '',
+					disabled: false,
+				},
+			],
+		};
+
+		const result = getVariableReferencesInQuery(query, variableNames);
+		expect(result).toEqual(['deployment_environment', 'endpoint']);
+	});
+
+	it('detects variables in clickhouse sql queries', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.CLICKHOUSE,
+			clickhouse_sql: [
+				{
+					name: 'A',
+					query: 'SELECT * FROM table WHERE service = [[service_name]]',
+					legend: '',
+					disabled: false,
+				},
+			],
+		};
+
+		const result = getVariableReferencesInQuery(query, variableNames);
+		expect(result).toEqual(['service_name']);
+	});
+
+	it('detects variables spread across multiple queryData entries', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.QUERY_BUILDER,
+			builder: {
+				queryData: [
+					({
+						filters: {
+							items: [{ id: '1', op: '=', value: '$service_name' }],
+							op: 'AND',
+						},
+					} as unknown) as IBuilderQuery,
+					({
+						filter: { expression: 'env = $deployment_environment' },
+					} as unknown) as IBuilderQuery,
+				],
+				queryFormulas: [],
+				queryTraceOperator: [],
+			},
+		};
+
+		const result = getVariableReferencesInQuery(query, variableNames);
+		expect(result).toEqual(['deployment_environment', 'service_name']);
+	});
+
+	it('returns empty array when no variables are referenced', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.PROM,
+			promql: [
+				{
+					name: 'A',
+					query: 'up{job="api"}',
+					legend: '',
+					disabled: false,
+				},
+			],
+		};
+
+		expect(getVariableReferencesInQuery(query, variableNames)).toEqual([]);
+	});
+
+	it('returns empty array when variableNames list is empty', () => {
+		const query: Query = {
+			...baseQuery,
+			queryType: EQueryType.PROM,
+			promql: [
+				{
+					name: 'A',
+					query: 'up{env="$deployment_environment"}',
+					legend: '',
+					disabled: false,
+				},
+			],
+		};
+
+		expect(getVariableReferencesInQuery(query, [])).toEqual([]);
+	});
+});

frontend/src/lib/dashboardVariables/variableReference.ts

@@ -0,0 +1,136 @@
+import { isArray } from 'lodash-es';
+import { Query, TagFilterItem } from 'types/api/queryBuilder/queryBuilderData';
+import { EQueryType } from 'types/common/dashboard';
+
+/**
+ * Builds a RegExp that matches any recognized variable reference syntax:
+ *   {{.variableName}}  — dot prefix, optional whitespace
+ *   {{variableName}}   — no dot, optional whitespace
+ *   $variableName      — dollar prefix, word-boundary terminated
+ *   [[variableName]]   — square brackets, optional whitespace
+ */
+export function buildVariableReferencePattern(variableName: string): RegExp {
+	const patterns = [
+		`\\{\\{\\s*?\\.${variableName}\\s*?\\}\\}`,
+		`\\{\\{\\s*${variableName}\\s*\\}\\}`,
+		`\\$${variableName}\\b`,
+		`\\[\\[\\s*${variableName}\\s*\\]\\]`,
+	];
+	return new RegExp(patterns.join('|'));
+}
+
+/**
+ * Returns true if `text` contains a reference to `variableName` in any of the
+ * recognized variable syntaxes.
+ */
+export function textContainsVariableReference(
+	text: string,
+	variableName: string,
+): boolean {
+	if (!text || !variableName) {
+		return false;
+	}
+	return buildVariableReferencePattern(variableName).test(text);
+}
+
+/**
+ * Extracts all text strings from a widget Query that could contain variable
+ * references. Covers:
+ * - QUERY_BUILDER: filter items' string values + filter.expression
+ * - PROM: each promql[].query
+ * - CLICKHOUSE: each clickhouse_sql[].query
+ */
+function extractQueryBuilderTexts(query: Query): string[] {
+	const texts: string[] = [];
+	const queryDataList = query.builder?.queryData;
+	if (isArray(queryDataList)) {
+		queryDataList.forEach((queryData) => {
+			// Collect string values from filter items
+			queryData.filters?.items?.forEach((filter: TagFilterItem) => {
+				if (isArray(filter.value)) {
+					filter.value.forEach((v) => {
+						if (typeof v === 'string') {
+							texts.push(v);
+						}
+					});
+				} else if (typeof filter.value === 'string') {
+					texts.push(filter.value);
+				}
+			});
+
+			// Collect filter expression
+			if (queryData.filter?.expression) {
+				texts.push(queryData.filter.expression);
+			}
+		});
+	}
+	return texts;
+}
+
+function extractPromQLTexts(query: Query): string[] {
+	const texts: string[] = [];
+	if (isArray(query.promql)) {
+		query.promql.forEach((promqlQuery) => {
+			if (promqlQuery.query) {
+				texts.push(promqlQuery.query);
+			}
+		});
+	}
+	return texts;
+}
+
+function extractClickhouseSQLTexts(query: Query): string[] {
+	const texts: string[] = [];
+	if (isArray(query.clickhouse_sql)) {
+		query.clickhouse_sql.forEach((clickhouseQuery) => {
+			if (clickhouseQuery.query) {
+				texts.push(clickhouseQuery.query);
+			}
+		});
+	}
+	return texts;
+}
+
+/**
+ * Extracts all text strings from a widget Query that could contain variable
+ * references. Covers:
+ * - QUERY_BUILDER: filter items' string values + filter.expression
+ * - PROM: each promql[].query
+ * - CLICKHOUSE: each clickhouse_sql[].query
+ */
+export function extractQueryTextStrings(query: Query): string[] {
+	if (query.queryType === EQueryType.QUERY_BUILDER) {
+		return extractQueryBuilderTexts(query);
+	}
+
+	if (query.queryType === EQueryType.PROM) {
+		return extractPromQLTexts(query);
+	}
+
+	if (query.queryType === EQueryType.CLICKHOUSE) {
+		return extractClickhouseSQLTexts(query);
+	}
+
+	return [];
+}
+
+/**
+ * Given a widget Query and an array of variable names, returns the subset of
+ * variable names that are referenced in the query text.
+ *
+ * This performs text-based detection only. Structural checks (like
+ * filter.key.key matching a variable attribute) are NOT included.
+ */
+export function getVariableReferencesInQuery(
+	query: Query,
+	variableNames: string[],
+): string[] {
+	const texts = extractQueryTextStrings(query);
+	if (texts.length === 0) {
+		return [];
+	}
+
+	return variableNames.filter((name) =>
+		texts.some((text) => textContainsVariableReference(text, name)),
+	);
+}

frontend/src/lib/uPlotV2/components/Legend/Legend.styles.scss

@@ -128,6 +128,15 @@
 		opacity: 1;
 	}
 
+	.legend-item-label-trigger {
+		display: flex;
+		align-items: center;
+		gap: 6px;
+		flex: 1;
+		min-width: 0;
+		cursor: pointer;
+	}
+
 	.legend-marker {
 		border-width: 2px;
 		border-radius: 50%;
@@ -157,10 +166,34 @@
 		text-overflow: ellipsis;
 		white-space: nowrap;
 		min-width: 0;
+		user-select: none;
+	}
+
+	.legend-copy-button {
+		display: none;
+		align-items: center;
+		justify-content: center;
+		flex-shrink: 0;
+		padding: 2px;
+		margin: 0;
+		border: none;
+		color: var(--bg-vanilla-400);
+		cursor: pointer;
+		border-radius: 4px;
+		opacity: 1;
+		transition: opacity 0.15s ease, color 0.15s ease;
+
+		&:hover {
+			color: var(--bg-vanilla-100);
+		}
 	}
 
 	&:hover {
 		background: rgba(255, 255, 255, 0.05);
+		.legend-copy-button {
+			display: flex;
+			opacity: 1;
+		}
 	}
 }
 
@@ -172,4 +205,17 @@
 			}
 		}
 	}
+
+	.legend-item {
+		&:hover {
+			background: rgba(0, 0, 0, 0.05);
+		}
+		.legend-copy-button {
+			color: var(--bg-ink-400);
+
+			&:hover {
+				color: var(--bg-ink-500);
+			}
+		}
+	}
 }

frontend/src/lib/uPlotV2/components/Legend/Legend.tsx

@@ -2,11 +2,13 @@ import { useCallback, useMemo, useRef, useState } from 'react';
 import { VirtuosoGrid } from 'react-virtuoso';
 import { Input, Tooltip as AntdTooltip } from 'antd';
 import cx from 'classnames';
+import { useCopyToClipboard } from 'hooks/useCopyToClipboard';
 import { LegendItem } from 'lib/uPlotV2/config/types';
 import useLegendsSync from 'lib/uPlotV2/hooks/useLegendsSync';
+import { Check, Copy } from 'lucide-react';
 
+import { useLegendActions } from '../../hooks/useLegendActions';
 import { LegendPosition, LegendProps } from '../types';
-import { useLegendActions } from './useLegendActions';
 
 import './Legend.styles.scss';
 
@@ -32,6 +34,7 @@ export default function Legend({
 	});
 	const legendContainerRef = useRef<HTMLDivElement | null>(null);
 	const [legendSearchQuery, setLegendSearchQuery] = useState('');
+	const { copyToClipboard, id: copiedId } = useCopyToClipboard();
 
 	const legendItems = useMemo(() => Object.values(legendItemsMap), [
 		legendItemsMap,
@@ -59,26 +62,53 @@ export default function Legend({
 		);
 	}, [position, legendSearchQuery, legendItems]);
 
+	const handleCopyLegendItem = useCallback(
+		(e: React.MouseEvent, seriesIndex: number, label: string): void => {
+			e.stopPropagation();
+			copyToClipboard(label, seriesIndex);
+		},
+		[copyToClipboard],
+	);
+
 	const renderLegendItem = useCallback(
-		(item: LegendItem): JSX.Element => (
-			<AntdTooltip key={item.seriesIndex} title={item.label}>
+		(item: LegendItem): JSX.Element => {
+			const isCopied = copiedId === item.seriesIndex;
+			return (
 				<div
+					key={item.seriesIndex}
 					data-legend-item-id={item.seriesIndex}
 					className={cx('legend-item', `legend-item-${position.toLowerCase()}`, {
 						'legend-item-off': !item.show,
 						'legend-item-focused': focusedSeriesIndex === item.seriesIndex,
 					})}
 				>
-					<div
-						className="legend-marker"
-						style={{ borderColor: String(item.color) }}
-						data-is-legend-marker={true}
-					/>
-					<span className="legend-label">{item.label}</span>
+					<AntdTooltip title={item.label}>
+						<div className="legend-item-label-trigger">
+							<div
+								className="legend-marker"
+								style={{ borderColor: String(item.color) }}
+								data-is-legend-marker={true}
+							/>
+							<span className="legend-label">{item.label}</span>
+						</div>
+					</AntdTooltip>
+					<AntdTooltip title={isCopied ? 'Copied' : 'Copy'}>
+						<button
+							type="button"
+							className="legend-copy-button"
+							onClick={(e): void =>
+								handleCopyLegendItem(e, item.seriesIndex, item.label ?? '')
+							}
+							aria-label={`Copy ${item.label}`}
+							data-testid="legend-copy"
+						>
+							{isCopied ? <Check size={12} /> : <Copy size={12} />}
+						</button>
+					</AntdTooltip>
 				</div>
-			</AntdTooltip>
-		),
-		[focusedSeriesIndex, position],
+			);
+		},
+		[copiedId, focusedSeriesIndex, handleCopyLegendItem, position],
 	);
 
 	const isEmptyState = useMemo(() => {
@@ -106,6 +136,7 @@ export default function Legend({
 						placeholder="Search..."
 						value={legendSearchQuery}
 						onChange={(e): void => setLegendSearchQuery(e.target.value)}
+						data-testid="legend-search-input"
 						className="legend-search-input"
 					/>
 				</div>

frontend/src/lib/uPlotV2/components/Tooltip/BarChartTooltip.tsx

@@ -0,0 +1,31 @@
+import { useMemo } from 'react';
+
+import { BarTooltipProps, TooltipContentItem } from '../types';
+import Tooltip from './Tooltip';
+import { buildTooltipContent } from './utils';
+
+export default function BarChartTooltip(props: BarTooltipProps): JSX.Element {
+	const content = useMemo(
+		(): TooltipContentItem[] =>
+			buildTooltipContent({
+				data: props.uPlotInstance.data,
+				series: props.uPlotInstance.series,
+				dataIndexes: props.dataIndexes,
+				activeSeriesIndex: props.seriesIndex,
+				uPlotInstance: props.uPlotInstance,
+				yAxisUnit: props.yAxisUnit ?? '',
+				decimalPrecision: props.decimalPrecision,
+				isStackedBarChart: props.isStackedBarChart,
+			}),
+		[
+			props.uPlotInstance,
+			props.seriesIndex,
+			props.dataIndexes,
+			props.yAxisUnit,
+			props.decimalPrecision,
+			props.isStackedBarChart,
+		],
+	);
+
+	return <Tooltip {...props} content={content} />;
+}

frontend/src/lib/uPlotV2/components/Tooltip/utils.ts

@@ -25,16 +25,28 @@ export function getTooltipBaseValue({
 	index,
 	dataIndex,
 	isStackedBarChart,
+	series,
 }: {
 	data: AlignedData;
 	index: number;
 	dataIndex: number;
 	isStackedBarChart?: boolean;
+	series?: Series[];
 }): number | null {
 	let baseValue = data[index][dataIndex] ?? null;
-	if (isStackedBarChart && index + 1 < data.length && baseValue !== null) {
-		const nextValue = data[index + 1][dataIndex] ?? null;
-		if (nextValue !== null) {
+	// Top-down stacking (first series at top): raw = stacked[i] - stacked[nextVisible].
+	// When series are hidden, we must use the next *visible* series, not index+1,
+	// since hidden series keep raw values and would produce negative/wrong results.
+	if (isStackedBarChart && baseValue !== null && series) {
+		let nextVisibleIdx = -1;
+		for (let j = index + 1; j < series.length; j++) {
+			if (series[j]?.show) {
+				nextVisibleIdx = j;
+				break;
+			}
+		}
+		if (nextVisibleIdx >= 1) {
+			const nextValue = data[nextVisibleIdx][dataIndex] ?? 0;
 			baseValue = baseValue - nextValue;
 		}
 	}
@@ -80,6 +92,7 @@ export function buildTooltipContent({
 			index,
 			dataIndex,
 			isStackedBarChart,
+			series,
 		});
 
 		const isActive = index === activeSeriesIndex;

frontend/src/lib/uPlotV2/components/__tests__/Legend.test.tsx

@@ -0,0 +1,280 @@
+import React from 'react';
+import {
+	fireEvent,
+	render,
+	RenderResult,
+	screen,
+	within,
+} from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { LegendItem } from 'lib/uPlotV2/config/types';
+import useLegendsSync from 'lib/uPlotV2/hooks/useLegendsSync';
+
+import { useLegendActions } from '../../hooks/useLegendActions';
+import Legend from '../Legend/Legend';
+import { LegendPosition } from '../types';
+
+const mockWriteText = jest.fn().mockResolvedValue(undefined);
+let clipboardSpy: jest.SpyInstance | undefined;
+
+jest.mock('react-virtuoso', () => ({
+	VirtuosoGrid: ({
+		data,
+		itemContent,
+		className,
+	}: {
+		data: LegendItem[];
+		itemContent: (index: number, item: LegendItem) => React.ReactNode;
+		className?: string;
+	}): JSX.Element => (
+		<div data-testid="virtuoso-grid" className={className}>
+			{data.map((item, index) => (
+				<div key={item.seriesIndex ?? index} data-testid="legend-item-wrapper">
+					{itemContent(index, item)}
+				</div>
+			))}
+		</div>
+	),
+}));
+
+jest.mock('lib/uPlotV2/hooks/useLegendsSync');
+jest.mock('lib/uPlotV2/hooks/useLegendActions');
+
+const mockUseLegendsSync = useLegendsSync as jest.MockedFunction<
+	typeof useLegendsSync
+>;
+const mockUseLegendActions = useLegendActions as jest.MockedFunction<
+	typeof useLegendActions
+>;
+
+describe('Legend', () => {
+	beforeAll(() => {
+		// JSDOM does not define navigator.clipboard; add it so we can spy on writeText
+		Object.defineProperty(navigator, 'clipboard', {
+			value: { writeText: () => Promise.resolve() },
+			writable: true,
+			configurable: true,
+		});
+	});
+
+	const baseLegendItemsMap = {
+		0: {
+			seriesIndex: 0,
+			label: 'A',
+			show: true,
+			color: '#ff0000',
+		},
+		1: {
+			seriesIndex: 1,
+			label: 'B',
+			show: false,
+			color: '#00ff00',
+		},
+		2: {
+			seriesIndex: 2,
+			label: 'C',
+			show: true,
+			color: '#0000ff',
+		},
+	};
+
+	let onLegendClick: jest.Mock;
+	let onLegendMouseMove: jest.Mock;
+	let onLegendMouseLeave: jest.Mock;
+	let onFocusSeries: jest.Mock;
+
+	beforeEach(() => {
+		onLegendClick = jest.fn();
+		onLegendMouseMove = jest.fn();
+		onLegendMouseLeave = jest.fn();
+		onFocusSeries = jest.fn();
+		mockWriteText.mockClear();
+
+		clipboardSpy = jest
+			.spyOn(navigator.clipboard, 'writeText')
+			.mockImplementation(mockWriteText);
+
+		mockUseLegendsSync.mockReturnValue({
+			legendItemsMap: baseLegendItemsMap,
+			focusedSeriesIndex: 1,
+			setFocusedSeriesIndex: jest.fn(),
+		});
+
+		mockUseLegendActions.mockReturnValue({
+			onLegendClick,
+			onLegendMouseMove,
+			onLegendMouseLeave,
+			onFocusSeries,
+		});
+	});
+
+	afterEach(() => {
+		clipboardSpy?.mockRestore();
+		jest.clearAllMocks();
+	});
+
+	const renderLegend = (position?: LegendPosition): RenderResult =>
+		render(
+			<Legend
+				position={position}
+				// config is not used directly in the component, it's consumed by the mocked hook
+				config={{} as any}
+			/>,
+		);
+
+	describe('layout and position', () => {
+		it('renders search input when legend position is RIGHT', () => {
+			renderLegend(LegendPosition.RIGHT);
+
+			expect(screen.getByTestId('legend-search-input')).toBeInTheDocument();
+		});
+
+		it('does not render search input when legend position is BOTTOM (default)', () => {
+			renderLegend();
+
+			expect(screen.queryByTestId('legend-search-input')).not.toBeInTheDocument();
+		});
+
+		it('renders the marker with the correct border color', () => {
+			renderLegend(LegendPosition.RIGHT);
+
+			const legendMarker = document.querySelector(
+				'[data-legend-item-id="0"] [data-is-legend-marker="true"]',
+			) as HTMLElement;
+
+			expect(legendMarker).toHaveStyle({
+				'border-color': '#ff0000',
+			});
+		});
+
+		it('renders all legend items in the grid by default', () => {
+			renderLegend(LegendPosition.RIGHT);
+
+			expect(screen.getByTestId('virtuoso-grid')).toBeInTheDocument();
+			expect(screen.getByText('A')).toBeInTheDocument();
+			expect(screen.getByText('B')).toBeInTheDocument();
+			expect(screen.getByText('C')).toBeInTheDocument();
+		});
+	});
+
+	describe('search behavior (RIGHT position)', () => {
+		it('filters legend items based on search query (case-insensitive)', async () => {
+			const user = userEvent.setup();
+			renderLegend(LegendPosition.RIGHT);
+
+			const searchInput = screen.getByTestId('legend-search-input');
+			await user.type(searchInput, 'A');
+
+			expect(screen.getByText('A')).toBeInTheDocument();
+			expect(screen.queryByText('B')).not.toBeInTheDocument();
+			expect(screen.queryByText('C')).not.toBeInTheDocument();
+		});
+
+		it('shows empty state when no legend items match the search query', async () => {
+			const user = userEvent.setup();
+			renderLegend(LegendPosition.RIGHT);
+
+			const searchInput = screen.getByTestId('legend-search-input');
+			await user.type(searchInput, 'network');
+
+			expect(
+				screen.getByText(/No series found matching "network"/i),
+			).toBeInTheDocument();
+			expect(screen.queryByTestId('virtuoso-grid')).not.toBeInTheDocument();
+		});
+
+		it('does not filter or show empty state when search query is empty or only whitespace', async () => {
+			const user = userEvent.setup();
+			renderLegend(LegendPosition.RIGHT);
+
+			const searchInput = screen.getByTestId('legend-search-input');
+			await user.type(searchInput, '   ');
+
+			expect(
+				screen.queryByText(/No series found matching/i),
+			).not.toBeInTheDocument();
+			expect(screen.getByText('A')).toBeInTheDocument();
+			expect(screen.getByText('B')).toBeInTheDocument();
+			expect(screen.getByText('C')).toBeInTheDocument();
+		});
+	});
+
+	describe('legend actions', () => {
+		it('calls onLegendClick when a legend item is clicked', async () => {
+			const user = userEvent.setup();
+			renderLegend(LegendPosition.RIGHT);
+
+			await user.click(screen.getByText('A'));
+
+			expect(onLegendClick).toHaveBeenCalledTimes(1);
+		});
+
+		it('calls mouseMove when the mouse moves over a legend item', async () => {
+			const user = userEvent.setup();
+			renderLegend(LegendPosition.RIGHT);
+
+			const legendItem = document.querySelector(
+				'[data-legend-item-id="0"]',
+			) as HTMLElement;
+
+			await user.hover(legendItem);
+
+			expect(onLegendMouseMove).toHaveBeenCalledTimes(1);
+		});
+
+		it('calls onLegendMouseLeave when the mouse leaves the legend container', async () => {
+			const user = userEvent.setup();
+			renderLegend(LegendPosition.RIGHT);
+
+			const container = document.querySelector('.legend-container') as HTMLElement;
+
+			await user.hover(container);
+			await user.unhover(container);
+
+			expect(onLegendMouseLeave).toHaveBeenCalledTimes(1);
+		});
+	});
+
+	describe('copy action', () => {
+		it('copies the legend label to clipboard when copy button is clicked', () => {
+			renderLegend(LegendPosition.RIGHT);
+
+			const firstLegendItem = document.querySelector(
+				'[data-legend-item-id="0"]',
+			) as HTMLElement;
+			const copyButton = within(firstLegendItem).getByTestId('legend-copy');
+
+			fireEvent.click(copyButton);
+
+			expect(mockWriteText).toHaveBeenCalledTimes(1);
+			expect(mockWriteText).toHaveBeenCalledWith('A');
+		});
+
+		it('copies the correct label when copy is clicked on a different legend item', () => {
+			renderLegend(LegendPosition.RIGHT);
+
+			const thirdLegendItem = document.querySelector(
+				'[data-legend-item-id="2"]',
+			) as HTMLElement;
+			const copyButton = within(thirdLegendItem).getByTestId('legend-copy');
+
+			fireEvent.click(copyButton);
+
+			expect(mockWriteText).toHaveBeenCalledTimes(1);
+			expect(mockWriteText).toHaveBeenCalledWith('C');
+		});
+
+		it('does not call onLegendClick when copy button is clicked', () => {
+			renderLegend(LegendPosition.RIGHT);
+
+			const firstLegendItem = document.querySelector(
+				'[data-legend-item-id="0"]',
+			) as HTMLElement;
+			const copyButton = within(firstLegendItem).getByTestId('legend-copy');
+
+			fireEvent.click(copyButton);
+
+			expect(onLegendClick).not.toHaveBeenCalled();
+		});
+	});
+});

frontend/src/lib/uPlotV2/config/UPlotAxisBuilder.ts

@@ -4,12 +4,12 @@ import uPlot, { Axis } from 'uplot';
 
 import { uPlotXAxisValuesFormat } from '../../uPlotLib/utils/constants';
 import getGridColor from '../../uPlotLib/utils/getGridColor';
+import { buildYAxisSizeCalculator } from '../utils/axis';
 import { AxisProps, ConfigBuilder } from './types';
 
 const PANEL_TYPES_WITH_X_AXIS_DATETIME_FORMAT = [
 	PANEL_TYPES.TIME_SERIES,
 	PANEL_TYPES.BAR,
-	PANEL_TYPES.PIE,
 ];
 
 /**
@@ -114,81 +114,6 @@ export class UPlotAxisBuilder extends ConfigBuilder<AxisProps, Axis> {
 			: undefined;
 	}
 
-	/**
-	 * Calculate axis size from existing size property
-	 */
-	private getExistingAxisSize(
-		self: uPlot,
-		axis: Axis,
-		values: string[] | undefined,
-		axisIdx: number,
-		cycleNum: number,
-	): number {
-		const internalSize = (axis as { _size?: number })._size;
-		if (internalSize !== undefined) {
-			return internalSize;
-		}
-
-		const existingSize = axis.size;
-		if (typeof existingSize === 'function') {
-			return existingSize(self, values ?? [], axisIdx, cycleNum);
-		}
-
-		return existingSize ?? 0;
-	}
-
-	/**
-	 * Calculate text width for longest value
-	 */
-	private calculateTextWidth(
-		self: uPlot,
-		axis: Axis,
-		values: string[] | undefined,
-	): number {
-		if (!values || values.length === 0) {
-			return 0;
-		}
-
-		// Find longest value
-		const longestVal = values.reduce(
-			(acc, val) => (val.length > acc.length ? val : acc),
-			'',
-		);
-
-		if (longestVal === '' || !axis.font?.[0]) {
-			return 0;
-		}
-
-		// eslint-disable-next-line prefer-destructuring, no-param-reassign
-		self.ctx.font = axis.font[0];
-		return self.ctx.measureText(longestVal).width / devicePixelRatio;
-	}
-
-	/**
-	 * Build Y-axis dynamic size calculator
-	 */
-	private buildYAxisSizeCalculator(): uPlot.Axis.Size {
-		return (
-			self: uPlot,
-			values: string[] | undefined,
-			axisIdx: number,
-			cycleNum: number,
-		): number => {
-			const axis = self.axes[axisIdx];
-
-			// Bail out, force convergence
-			if (cycleNum > 1) {
-				return this.getExistingAxisSize(self, axis, values, axisIdx, cycleNum);
-			}
-
-			const gap = this.props.gap ?? 5;
-			let axisSize = (axis.ticks?.size ?? 0) + gap;
-			axisSize += this.calculateTextWidth(self, axis, values);
-
-			return Math.ceil(axisSize);
-		};
-	}
-
 	/**
 	 * Build dynamic size calculator for Y-axis
 	 */
@@ -202,7 +127,7 @@ export class UPlotAxisBuilder extends ConfigBuilder<AxisProps, Axis> {
 
 		// Y-axis needs dynamic sizing based on text width
 		if (scaleKey === 'y') {
-			return this.buildYAxisSizeCalculator();
+			return buildYAxisSizeCalculator(this.props.gap ?? 5);
 		}
 
 		return undefined;

frontend/src/lib/uPlotV2/config/UPlotConfigBuilder.ts

@@ -1,3 +1,4 @@
+import { SeriesVisibilityItem } from 'container/DashboardContainer/visualization/panels/types';
 import { getStoredSeriesVisibility } from 'container/DashboardContainer/visualization/panels/utils/legendVisibilityUtils';
 import { ThresholdsDrawHookOptions } from 'lib/uPlotV2/hooks/types';
 import { thresholdsDrawHook } from 'lib/uPlotV2/hooks/useThresholdsDrawHook';
@@ -235,9 +236,9 @@ export class UPlotConfigBuilder extends ConfigBuilder<
 	}
 
 	/**
-	 * Returns stored series visibility map from localStorage when preferences source is LOCAL_STORAGE, otherwise null.
+	 * Returns stored series visibility by index from localStorage when preferences source is LOCAL_STORAGE, otherwise null.
 	 */
-	private getStoredVisibilityMap(): Map<string, boolean> | null {
+	private getStoredVisibility(): SeriesVisibilityItem[] | null {
 		if (
 			this.widgetId &&
 			this.selectionPreferencesSource === SelectionPreferencesSource.LOCAL_STORAGE
@@ -247,26 +248,111 @@ export class UPlotConfigBuilder extends ConfigBuilder<
 		return null;
 	}
 
+	/**
+	 * Derive visibility resolution state from stored preferences and current series:
+	 * - visibleStoredLabels: labels that should always be visible
+	 * - hiddenStoredLabels: labels that should always be hidden
+	 * - hasActivePreference: whether a "mix" preference applies to new labels
+	 */
+	// eslint-disable-next-line sonarjs/cognitive-complexity
+	private getVisibilityResolutionState(): {
+		visibleStoredLabels: Set<string>;
+		hiddenStoredLabels: Set<string>;
+		hasActivePreference: boolean;
+	} {
+		const seriesVisibilityState = this.getStoredVisibility();
+		if (!seriesVisibilityState || seriesVisibilityState.length === 0) {
+			return {
+				visibleStoredLabels: new Set<string>(),
+				hiddenStoredLabels: new Set<string>(),
+				hasActivePreference: false,
+			};
+		}
+
+		// Single pass over stored items to derive:
+		// - visibleStoredLabels: any label that is ever stored as visible
+		// - hiddenStoredLabels: labels that are only ever stored as hidden
+		// - hasMixPreference: there is at least one visible and one hidden entry
+		const visibleStoredLabels = new Set<string>();
+		const hiddenStoredLabels = new Set<string>();
+		let hasAnyVisible = false;
+		let hasAnyHidden = false;
+
+		for (const { label, show } of seriesVisibilityState) {
+			if (show) {
+				hasAnyVisible = true;
+				visibleStoredLabels.add(label);
+				// If a label is ever visible, it should not be treated as "only hidden"
+				if (hiddenStoredLabels.has(label)) {
+					hiddenStoredLabels.delete(label);
+				}
+			} else {
+				hasAnyHidden = true;
+				// Only track as hidden if we have not already seen it as visible
+				if (!visibleStoredLabels.has(label)) {
+					hiddenStoredLabels.add(label);
+				}
+			}
+		}
+
+		const hasMixPreference = hasAnyVisible && hasAnyHidden;
+
+		// Current series labels in this chart.
+		const currentSeriesLabels = this.series.map(
+			(s: UPlotSeriesBuilder) => s.getConfig().label ?? '',
+		);
+
+		// Check if any stored "visible" label exists in the current series list.
+		const hasVisibleIntersection =
+			visibleStoredLabels.size > 0 &&
+			currentSeriesLabels.some((label) => visibleStoredLabels.has(label));
+
+		// Active preference only when there is a mix AND at least one visible
+		// stored label is present in the current series list.
+		const hasActivePreference = hasMixPreference && hasVisibleIntersection;
+
+		// We apply stored visibility in two cases:
+		// - There is an active preference (mix + intersection), OR
+		// - There is no mix (all true or all false) – preserve legacy behavior.
+		const shouldApplyStoredVisibility = !hasMixPreference || hasActivePreference;
+
+		if (!shouldApplyStoredVisibility) {
+			return {
+				visibleStoredLabels: new Set<string>(),
+				hiddenStoredLabels: new Set<string>(),
+				hasActivePreference,
+			};
+		}
+
+		return {
+			visibleStoredLabels,
+			hiddenStoredLabels,
+			hasActivePreference,
+		};
+	}
+
 	/**
 	 * Get legend items with visibility state restored from localStorage if available
 	 */
 	getLegendItems(): Record<number, LegendItem> {
-		const visibilityMap = this.getStoredVisibilityMap();
-		const isAnySeriesHidden = !!(
-			visibilityMap && Array.from(visibilityMap.values()).some((show) => !show)
-		);
+		const {
+			visibleStoredLabels,
+			hiddenStoredLabels,
+			hasActivePreference,
+		} = this.getVisibilityResolutionState();
 
 		return this.series.reduce((acc, s: UPlotSeriesBuilder, index: number) => {
 			const seriesConfig = s.getConfig();
 			const label = seriesConfig.label ?? '';
-			const seriesIndex = index + 1; // +1 because the first series is the timestamp
-
-			const show = resolveSeriesVisibility(
-				label,
-				seriesConfig.show,
-				visibilityMap,
-				isAnySeriesHidden,
-			);
+			// +1 because uPlot series 0 is x-axis/time; data series are at 1, 2, ... (also matches stored visibility[0]=time, visibility[1]=first data, ...)
+			const seriesIndex = index + 1;
+			const show = resolveSeriesVisibility({
+				seriesShow: seriesConfig.show,
+				seriesLabel: label,
+				visibleStoredLabels,
+				hiddenStoredLabels,
+				hasActivePreference,
+			});
 
 			acc[seriesIndex] = {
 				seriesIndex,
@@ -294,22 +380,24 @@ export class UPlotConfigBuilder extends ConfigBuilder<
 			...DEFAULT_PLOT_CONFIG,
 		};
 
-		const visibilityMap = this.getStoredVisibilityMap();
-		const isAnySeriesHidden = !!(
-			visibilityMap && Array.from(visibilityMap.values()).some((show) => !show)
-		);
+		const {
+			visibleStoredLabels,
+			hiddenStoredLabels,
+			hasActivePreference,
+		} = this.getVisibilityResolutionState();
 
 		config.series = [
 			{ value: (): string => '' }, // Base series for timestamp
 			...this.series.map((s) => {
 				const series = s.getConfig();
-				const label = series.label ?? '';
-				const visible = resolveSeriesVisibility(
-					label,
-					series.show,
-					visibilityMap,
-					isAnySeriesHidden,
-				);
+				// Stored visibility[0] is x-axis/time; data series start at visibility[1]
+				const visible = resolveSeriesVisibility({
+					seriesShow: series.show,
+					seriesLabel: series.label ?? '',
+					visibleStoredLabels,
+					hiddenStoredLabels,
+					hasActivePreference,
+				});
 				return {
 					...series,
 					show: visible,

frontend/src/lib/uPlotV2/config/UPlotSeriesBuilder.ts

@@ -1,8 +1,10 @@
+import { PANEL_TYPES } from 'constants/queryBuilder';
 import { themeColors } from 'constants/theme';
 import { generateColor } from 'lib/uPlotLib/utils/generateColor';
 import uPlot, { Series } from 'uplot';
 
 import {
+	BarAlignment,
 	ConfigBuilder,
 	DrawStyle,
 	LineInterpolation,
@@ -15,20 +17,41 @@ import {
  * Builder for uPlot series configuration
  * Handles creation of series settings
  */
+
+/**
+ * Path builders are static and shared across all instances of UPlotSeriesBuilder
+ */
+let builders: PathBuilders | null = null;
 export class UPlotSeriesBuilder extends ConfigBuilder<SeriesProps, Series> {
+	constructor(props: SeriesProps) {
+		super(props);
+		const pathBuilders = uPlot.paths;
+
+		if (!builders) {
+			const linearBuilder = pathBuilders.linear;
+			const splineBuilder = pathBuilders.spline;
+			const steppedBuilder = pathBuilders.stepped;
+
+			if (!linearBuilder || !splineBuilder || !steppedBuilder) {
+				throw new Error('Required uPlot path builders are not available');
+			}
+			builders = {
+				linear: linearBuilder(),
+				spline: splineBuilder(),
+				stepBefore: steppedBuilder({ align: -1 }),
+				stepAfter: steppedBuilder({ align: 1 }),
+			};
+		}
+	}
+
 	private buildLineConfig({
-		lineColor,
-		lineWidth,
-		lineStyle,
-		lineCap,
+		resolvedLineColor,
 	}: {
-		lineColor: string;
-		lineWidth?: number;
-		lineStyle?: LineStyle;
-		lineCap?: Series.Cap;
+		resolvedLineColor: string;
 	}): Partial<Series> {
+		const { lineWidth, lineStyle, lineCap } = this.props;
 		const lineConfig: Partial<Series> = {
-			stroke: lineColor,
+			stroke: resolvedLineColor,
 			width: lineWidth ?? 2,
 		};
 
@@ -39,21 +62,27 @@ export class UPlotSeriesBuilder extends ConfigBuilder<SeriesProps, Series> {
 		if (lineCap) {
 			lineConfig.cap = lineCap;
 		}
+
+		if (this.props.panelType === PANEL_TYPES.BAR) {
+			lineConfig.fill = resolvedLineColor;
+		}
+
 		return lineConfig;
 	}
 
 	/**
 	 * Build path configuration
 	 */
-	private buildPathConfig({
-		pathBuilder,
-		drawStyle,
-		lineInterpolation,
-	}: {
-		pathBuilder?: Series.PathBuilder | null;
-		drawStyle: DrawStyle;
-		lineInterpolation?: LineInterpolation;
-	}): Partial<Series> {
+	private buildPathConfig(): Partial<Series> {
+		const {
+			pathBuilder,
+			drawStyle,
+			lineInterpolation,
+			barAlignment,
+			barMaxWidth,
+			barWidthFactor,
+			stepInterval,
+		} = this.props;
 		if (pathBuilder) {
 			return { paths: pathBuilder };
 		}
@@ -70,7 +99,14 @@ export class UPlotSeriesBuilder extends ConfigBuilder<SeriesProps, Series> {
 					idx0: number,
 					idx1: number,
 				): Series.Paths | null => {
-					const pathsBuilder = getPathBuilder(drawStyle, lineInterpolation);
+					const pathsBuilder = getPathBuilder({
+						drawStyle,
+						lineInterpolation,
+						barAlignment,
+						barMaxWidth,
+						barWidthFactor,
+						stepInterval,
+					});
 
 					return pathsBuilder(self, seriesIdx, idx0, idx1);
 				},
@@ -84,25 +120,21 @@ export class UPlotSeriesBuilder extends ConfigBuilder<SeriesProps, Series> {
 	 * Build points configuration
 	 */
 	private buildPointsConfig({
-		lineColor,
-		lineWidth,
-		pointSize,
-		pointsBuilder,
-		pointsFilter,
-		drawStyle,
-		showPoints,
+		resolvedLineColor,
 	}: {
-		lineColor: string;
-		lineWidth?: number;
-		pointSize?: number;
-		pointsBuilder: Series.Points.Show | null;
-		pointsFilter: Series.Points.Filter | null;
-		drawStyle: DrawStyle;
-		showPoints?: VisibilityMode;
+		resolvedLineColor: string;
 	}): Partial<Series.Points> {
+		const {
+			lineWidth,
+			pointSize,
+			pointsBuilder,
+			pointsFilter,
+			drawStyle,
+			showPoints,
+		} = this.props;
 		const pointsConfig: Partial<Series.Points> = {
-			stroke: lineColor,
-			fill: lineColor,
+			stroke: resolvedLineColor,
+			fill: resolvedLineColor,
 			size: !pointSize || pointSize < (lineWidth ?? 2) ? undefined : pointSize,
 			filter: pointsFilter || undefined,
 		};
@@ -136,44 +168,16 @@ export class UPlotSeriesBuilder extends ConfigBuilder<SeriesProps, Series> {
 	}
 
 	getConfig(): Series {
-		const {
-			drawStyle,
-			pathBuilder,
-			pointsBuilder,
-			pointsFilter,
-			lineInterpolation,
-			lineWidth,
-			lineStyle,
-			lineCap,
-			showPoints,
-			pointSize,
-			scaleKey,
-			label,
-			spanGaps,
-			show = true,
-		} = this.props;
+		const { scaleKey, label, spanGaps, show = true } = this.props;
 
-		const lineColor = this.getLineColor();
+		const resolvedLineColor = this.getLineColor();
 
 		const lineConfig = this.buildLineConfig({
-			lineColor,
-			lineWidth,
-			lineStyle,
-			lineCap,
-		});
-		const pathConfig = this.buildPathConfig({
-			pathBuilder,
-			drawStyle,
-			lineInterpolation,
+			resolvedLineColor,
 		});
+		const pathConfig = this.buildPathConfig();
 		const pointsConfig = this.buildPointsConfig({
-			lineColor,
-			lineWidth,
-			pointSize,
-			pointsBuilder: pointsBuilder ?? null,
-			pointsFilter: pointsFilter ?? null,
-			drawStyle,
-			showPoints,
+			resolvedLineColor,
 		});
 
 		return {
@@ -198,35 +202,40 @@ interface PathBuilders {
 	[key: string]: Series.PathBuilder;
 }
 
-let builders: PathBuilders | null = null;
-
 /**
  * Get path builder based on draw style and interpolation
  */
-function getPathBuilder(
-	style: DrawStyle,
-	lineInterpolation?: LineInterpolation,
-): Series.PathBuilder {
-	const pathBuilders = uPlot.paths;
-
+function getPathBuilder({
+	drawStyle,
+	lineInterpolation,
+	barAlignment = BarAlignment.Center,
+	barWidthFactor = 0.6,
+	barMaxWidth = 200,
+	stepInterval,
+}: {
+	drawStyle: DrawStyle;
+	lineInterpolation?: LineInterpolation;
+	barAlignment?: BarAlignment;
+	barMaxWidth?: number;
+	barWidthFactor?: number;
+	stepInterval?: number;
+}): Series.PathBuilder {
 	if (!builders) {
-		const linearBuilder = pathBuilders.linear;
-		const splineBuilder = pathBuilders.spline;
-		const steppedBuilder = pathBuilders.stepped;
-
-		if (!linearBuilder || !splineBuilder || !steppedBuilder) {
-			throw new Error('Required uPlot path builders are not available');
-		}
-
-		builders = {
-			linear: linearBuilder(),
-			spline: splineBuilder(),
-			stepBefore: steppedBuilder({ align: -1 }),
-			stepAfter: steppedBuilder({ align: 1 }),
-		};
+		throw new Error('Required uPlot path builders are not available');
 	}
 
-	if (style === DrawStyle.Line) {
+	if (drawStyle === DrawStyle.Bar) {
+		const pathBuilders = uPlot.paths;
+		return getBarPathBuilder({
+			pathBuilders,
+			barAlignment,
+			barWidthFactor,
+			barMaxWidth,
+			stepInterval,
+		});
+	}
+
+	if (drawStyle === DrawStyle.Line) {
 		if (lineInterpolation === LineInterpolation.StepBefore) {
 			return builders.stepBefore;
 		}
@@ -241,4 +250,81 @@ function getPathBuilder(
 	return builders.spline;
 }
 
+// eslint-disable-next-line sonarjs/cognitive-complexity
+function getBarPathBuilder({
+	pathBuilders,
+	barAlignment,
+	barWidthFactor,
+	barMaxWidth,
+	stepInterval,
+}: {
+	pathBuilders: typeof uPlot.paths;
+	barAlignment: BarAlignment;
+	barWidthFactor: number;
+	barMaxWidth: number;
+	stepInterval?: number;
+}): Series.PathBuilder {
+	if (!builders) {
+		throw new Error('Required uPlot path builders are not available');
+	}
+
+	const barsPathBuilderFactory = pathBuilders.bars;
+
+	// When a stepInterval is provided (in seconds), cap the maximum bar width
+	// so that a single bar never visually spans more than stepInterval worth
+	// of time on the x-scale.
+	if (
+		typeof stepInterval === 'number' &&
+		stepInterval > 0 &&
+		barsPathBuilderFactory
+	) {
+		return (
+			self: uPlot,
+			seriesIdx: number,
+			idx0: number,
+			idx1: number,
+		): Series.Paths | null => {
+			let effectiveBarMaxWidth = barMaxWidth;
+
+			const xScale = self.scales.x as uPlot.Scale | undefined;
+			if (xScale && typeof xScale.min === 'number') {
+				const start = xScale.min as number;
+				const end = start + stepInterval;
+				const startPx = self.valToPos(start, 'x');
+				const endPx = self.valToPos(end, 'x');
+				const intervalPx = Math.abs(endPx - startPx);
+
+				if (intervalPx > 0) {
+					effectiveBarMaxWidth =
+						typeof barMaxWidth === 'number'
+							? Math.min(barMaxWidth, intervalPx)
+							: intervalPx;
+				}
+			}
+
+			const barsCfgKey = `bars|${barAlignment}|${barWidthFactor}|${effectiveBarMaxWidth}`;
+			if (builders && !builders[barsCfgKey]) {
+				builders[barsCfgKey] = barsPathBuilderFactory({
+					size: [barWidthFactor, effectiveBarMaxWidth],
+					align: barAlignment,
+				});
+			}
+
+			return builders && builders[barsCfgKey]
+				? builders[barsCfgKey](self, seriesIdx, idx0, idx1)
+				: null;
+		};
+	}
+
+	const barsCfgKey = `bars|${barAlignment}|${barWidthFactor}|${barMaxWidth}`;
+	if (!builders[barsCfgKey] && barsPathBuilderFactory) {
+		builders[barsCfgKey] = barsPathBuilderFactory({
+			size: [barWidthFactor, barMaxWidth],
+			align: barAlignment,
+		});
+	}
+
+	return builders[barsCfgKey];
+}
+
 export type { SeriesProps };

frontend/src/lib/uPlotV2/config/__tests__/UPlotAxisBuilder.test.ts

@@ -0,0 +1,393 @@
+import { getToolTipValue } from 'components/Graph/yAxisConfig';
+import { PANEL_TYPES } from 'constants/queryBuilder';
+import { uPlotXAxisValuesFormat } from 'lib/uPlotLib/utils/constants';
+import type uPlot from 'uplot';
+
+import type { AxisProps } from '../types';
+import { UPlotAxisBuilder } from '../UPlotAxisBuilder';
+
+jest.mock('components/Graph/yAxisConfig', () => ({
+	getToolTipValue: jest.fn(),
+}));
+
+const createAxisProps = (overrides: Partial<AxisProps> = {}): AxisProps => ({
+	scaleKey: 'x',
+	label: 'Time',
+	isDarkMode: false,
+	show: true,
+	...overrides,
+});
+
+describe('UPlotAxisBuilder', () => {
+	beforeEach(() => {
+		jest.clearAllMocks();
+	});
+
+	it('builds basic axis config with defaults', () => {
+		const builder = new UPlotAxisBuilder(
+			createAxisProps({
+				scaleKey: 'x',
+				label: 'Time',
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.scale).toBe('x');
+		expect(config.label).toBe('Time');
+		expect(config.show).toBe(true);
+		expect(config.side).toBe(2);
+		expect(config.gap).toBe(5);
+
+		// Default grid and ticks are created
+		expect(config.grid).toEqual({
+			stroke: 'rgba(0,0,0,0.5)',
+			width: 0.2,
+			show: true,
+		});
+		expect(config.ticks).toEqual({
+			width: 0.3,
+			show: true,
+		});
+	});
+
+	it('sets config values when provided', () => {
+		const builder = new UPlotAxisBuilder(
+			createAxisProps({
+				scaleKey: 'x',
+				label: 'Time',
+				show: false,
+				side: 0,
+				gap: 10,
+				grid: {
+					stroke: '#ff0000',
+					width: 1,
+					show: false,
+				},
+				ticks: {
+					stroke: '#00ff00',
+					width: 1,
+					show: false,
+					size: 10,
+				},
+				values: ['1', '2', '3'],
+				space: 20,
+				size: 100,
+				stroke: '#0000ff',
+			}),
+		);
+		const config = builder.getConfig();
+		expect(config.scale).toBe('x');
+		expect(config.label).toBe('Time');
+		expect(config.show).toBe(false);
+		expect(config.gap).toBe(10);
+		expect(config.grid).toEqual({
+			stroke: '#ff0000',
+			width: 1,
+			show: false,
+		});
+		expect(config.ticks).toEqual({
+			stroke: '#00ff00',
+			width: 1,
+			show: false,
+			size: 10,
+		});
+		expect(config.values).toEqual(['1', '2', '3']);
+		expect(config.space).toBe(20);
+		expect(config.size).toBe(100);
+		expect(config.stroke).toBe('#0000ff');
+	});
+
+	it('merges custom grid config over defaults and respects isDarkMode and isLogScale', () => {
+		const builder = new UPlotAxisBuilder(
+			createAxisProps({
+				isDarkMode: true,
+				isLogScale: true,
+				grid: {
+					width: 1,
+				},
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.grid).toEqual({
+			// stroke falls back to theme-based default when not provided
+			stroke: 'rgba(231,233,237,0.3)',
+			// provided width overrides default
+			width: 1,
+			// show falls back to default when not provided
+			show: true,
+		});
+	});
+
+	it('uses provided ticks config when present and falls back to defaults otherwise', () => {
+		const customTicks = { width: 1, show: false };
+		const withTicks = new UPlotAxisBuilder(
+			createAxisProps({
+				ticks: customTicks,
+			}),
+		);
+		const withoutTicks = new UPlotAxisBuilder(createAxisProps());
+
+		expect(withTicks.getConfig().ticks).toBe(customTicks);
+		expect(withoutTicks.getConfig().ticks).toEqual({
+			width: 0.3,
+			show: true,
+		});
+	});
+
+	it('uses time-based X-axis values formatter for time-series like panels', () => {
+		const builder = new UPlotAxisBuilder(
+			createAxisProps({
+				scaleKey: 'x',
+				panelType: PANEL_TYPES.TIME_SERIES,
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.values).toBe(uPlotXAxisValuesFormat);
+	});
+
+	it('does not attach X-axis datetime formatter when panel type is not supported', () => {
+		const builder = new UPlotAxisBuilder(
+			createAxisProps({
+				scaleKey: 'x',
+				panelType: PANEL_TYPES.LIST, // not in PANEL_TYPES_WITH_X_AXIS_DATETIME_FORMAT
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.values).toBeUndefined();
+	});
+
+	it('builds Y-axis values formatter that delegates to getToolTipValue', () => {
+		const yBuilder = new UPlotAxisBuilder(
+			createAxisProps({
+				scaleKey: 'y',
+				yAxisUnit: 'ms',
+				decimalPrecision: 3,
+			}),
+		);
+
+		const config = yBuilder.getConfig();
+		expect(typeof config.values).toBe('function');
+
+		(getToolTipValue as jest.Mock).mockImplementation(
+			(value: string, unit?: string, precision?: unknown) =>
+				`formatted:${value}:${unit}:${precision}`,
+		);
+
+		// Simulate uPlot calling the values formatter
+		const valuesFn = (config.values as unknown) as (
+			self: uPlot,
+			vals: unknown[],
+		) => string[];
+		const result = valuesFn({} as uPlot, [1, null, 2, Number.NaN]);
+
+		expect(getToolTipValue).toHaveBeenCalledTimes(2);
+		expect(getToolTipValue).toHaveBeenNthCalledWith(1, '1', 'ms', 3);
+		expect(getToolTipValue).toHaveBeenNthCalledWith(2, '2', 'ms', 3);
+
+		// Null/NaN values should map to empty strings
+		expect(result).toEqual(['formatted:1:ms:3', '', 'formatted:2:ms:3', '']);
+	});
+
+	it('adds dynamic size calculator only for Y-axis when size is not provided', () => {
+		const yBuilder = new UPlotAxisBuilder(
+			createAxisProps({
+				scaleKey: 'y',
+			}),
+		);
+		const xBuilder = new UPlotAxisBuilder(
+			createAxisProps({
+				scaleKey: 'x',
+			}),
+		);
+
+		const yConfig = yBuilder.getConfig();
+		const xConfig = xBuilder.getConfig();
+
+		expect(typeof yConfig.size).toBe('function');
+		expect(xConfig.size).toBeUndefined();
+	});
+
+	it('uses explicit size function when provided', () => {
+		const sizeFn: uPlot.Axis.Size = jest.fn(() => 100) as uPlot.Axis.Size;
+
+		const builder = new UPlotAxisBuilder(
+			createAxisProps({
+				scaleKey: 'y',
+				size: sizeFn,
+			}),
+		);
+
+		const config = builder.getConfig();
+		expect(config.size).toBe(sizeFn);
+	});
+
+	it('builds stroke color based on stroke and isDarkMode', () => {
+		const explicitStroke = new UPlotAxisBuilder(
+			createAxisProps({
+				stroke: '#ff0000',
+			}),
+		);
+		const darkStroke = new UPlotAxisBuilder(
+			createAxisProps({
+				stroke: undefined,
+				isDarkMode: true,
+			}),
+		);
+		const lightStroke = new UPlotAxisBuilder(
+			createAxisProps({
+				stroke: undefined,
+				isDarkMode: false,
+			}),
+		);
+
+		expect(explicitStroke.getConfig().stroke).toBe('#ff0000');
+		expect(darkStroke.getConfig().stroke).toBe('white');
+		expect(lightStroke.getConfig().stroke).toBe('black');
+	});
+
+	it('uses explicit values formatter when provided', () => {
+		const customValues: uPlot.Axis.Values = jest.fn(() => ['a', 'b', 'c']);
+
+		const builder = new UPlotAxisBuilder(
+			createAxisProps({
+				scaleKey: 'y',
+				values: customValues,
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.values).toBe(customValues);
+	});
+
+	it('returns undefined values for scaleKey neither x nor y', () => {
+		const builder = new UPlotAxisBuilder(createAxisProps({ scaleKey: 'custom' }));
+
+		const config = builder.getConfig();
+
+		expect(config.values).toBeUndefined();
+	});
+
+	it('includes space in config when provided', () => {
+		const builder = new UPlotAxisBuilder(
+			createAxisProps({ scaleKey: 'y', space: 50 }),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.space).toBe(50);
+	});
+
+	it('includes PANEL_TYPES.BAR and PANEL_TYPES.TIME_SERIES in X-axis datetime formatter', () => {
+		const barBuilder = new UPlotAxisBuilder(
+			createAxisProps({
+				scaleKey: 'x',
+				panelType: PANEL_TYPES.BAR,
+			}),
+		);
+		expect(barBuilder.getConfig().values).toBe(uPlotXAxisValuesFormat);
+
+		const timeSeriesBuilder = new UPlotAxisBuilder(
+			createAxisProps({
+				scaleKey: 'x',
+				panelType: PANEL_TYPES.TIME_SERIES,
+			}),
+		);
+		expect(timeSeriesBuilder.getConfig().values).toBe(uPlotXAxisValuesFormat);
+	});
+
+	it('should return the existing size when cycleNum > 1', () => {
+		const builder = new UPlotAxisBuilder(createAxisProps({ scaleKey: 'y' }));
+
+		const config = builder.getConfig();
+		const sizeFn = config.size;
+		expect(typeof sizeFn).toBe('function');
+
+		const mockAxis = {
+			_size: 80,
+			ticks: { size: 10 },
+			font: ['12px sans-serif'],
+		};
+		const mockSelf = ({
+			axes: [mockAxis],
+			ctx: { measureText: jest.fn(() => ({ width: 60 })), font: '' },
+		} as unknown) as uPlot;
+
+		const result = (sizeFn as (
+			s: uPlot,
+			v: string[],
+			a: number,
+			c: number,
+		) => number)(
+			mockSelf,
+			['100', '200'],
+			0,
+			2, // cycleNum > 1
+		);
+
+		expect(result).toBe(80);
+	});
+
+	it('should invoke the size calculator and compute from text width when cycleNum <= 1', () => {
+		const builder = new UPlotAxisBuilder(
+			createAxisProps({ scaleKey: 'y', gap: 8 }),
+		);
+
+		const config = builder.getConfig();
+		const sizeFn = config.size;
+		expect(typeof sizeFn).toBe('function');
+
+		const mockAxis = {
+			ticks: { size: 12 },
+			font: ['12px sans-serif'],
+		};
+		const measureText = jest.fn(() => ({ width: 48 }));
+		const mockSelf = ({
+			axes: [mockAxis],
+			ctx: {
+				measureText,
+				get font() {
+					return '';
+				},
+				set font(_v: string) {
+					/* noop */
+				},
+			},
+		} as unknown) as uPlot;
+
+		const result = (sizeFn as (
+			s: uPlot,
+			v: string[],
+			a: number,
+			c: number,
+		) => number)(
+			mockSelf,
+			['10', '2000ms'],
+			0,
+			0, // cycleNum <= 1
+		);
+
+		expect(measureText).toHaveBeenCalledWith('2000ms');
+		expect(result).toBeGreaterThanOrEqual(12 + 8);
+	});
+
+	it('merge updates axis props', () => {
+		const builder = new UPlotAxisBuilder(
+			createAxisProps({ scaleKey: 'y', label: 'Original' }),
+		);
+
+		builder.merge({ label: 'Merged', yAxisUnit: 'bytes' });
+
+		const config = builder.getConfig();
+
+		expect(config.label).toBe('Merged');
+		expect(config.values).toBeDefined();
+	});
+});

frontend/src/lib/uPlotV2/config/__tests__/UPlotConfigBuilder.test.ts

@@ -0,0 +1,439 @@
+import { PANEL_TYPES } from 'constants/queryBuilder';
+import uPlot from 'uplot';
+
+import type { SeriesProps } from '../types';
+import { DrawStyle, SelectionPreferencesSource } from '../types';
+import { UPlotConfigBuilder } from '../UPlotConfigBuilder';
+
+// Mock only the real boundary that hits localStorage
+jest.mock(
+	'container/DashboardContainer/visualization/panels/utils/legendVisibilityUtils',
+	() => ({
+		getStoredSeriesVisibility: jest.fn(),
+	}),
+);
+
+const getStoredSeriesVisibilityMock = jest.requireMock(
+	'container/DashboardContainer/visualization/panels/utils/legendVisibilityUtils',
+) as {
+	getStoredSeriesVisibility: jest.Mock;
+};
+
+describe('UPlotConfigBuilder', () => {
+	beforeEach(() => {
+		jest.clearAllMocks();
+	});
+
+	const createSeriesProps = (
+		overrides: Partial<SeriesProps> = {},
+	): SeriesProps => ({
+		scaleKey: 'y',
+		label: 'Requests',
+		colorMapping: {},
+		drawStyle: DrawStyle.Line,
+		panelType: PANEL_TYPES.TIME_SERIES,
+		...overrides,
+	});
+
+	it('returns correct save selection preference flag from constructor args', () => {
+		const builder = new UPlotConfigBuilder({
+			shouldSaveSelectionPreference: true,
+		});
+
+		expect(builder.getShouldSaveSelectionPreference()).toBe(true);
+	});
+
+	it('returns widgetId from constructor args', () => {
+		const builder = new UPlotConfigBuilder({ widgetId: 'widget-123' });
+
+		expect(builder.getWidgetId()).toBe('widget-123');
+	});
+
+	it('sets tzDate from constructor and includes it in config', () => {
+		const tzDate = (ts: number): Date => new Date(ts);
+		const builder = new UPlotConfigBuilder({ tzDate });
+
+		const config = builder.getConfig();
+
+		expect(config.tzDate).toBe(tzDate);
+	});
+
+	it('does not call onDragSelect for click without drag (width === 0)', () => {
+		const onDragSelect = jest.fn();
+		const builder = new UPlotConfigBuilder({ onDragSelect });
+
+		const config = builder.getConfig();
+		const setSelectHooks = config.hooks?.setSelect ?? [];
+		expect(setSelectHooks.length).toBe(1);
+
+		const uplotInstance = ({
+			select: { left: 10, width: 0 },
+			posToVal: jest.fn(),
+		} as unknown) as uPlot;
+
+		// Simulate uPlot calling the hook
+		const setSelectHook = setSelectHooks[0];
+		setSelectHook!(uplotInstance);
+
+		expect(onDragSelect).not.toHaveBeenCalled();
+	});
+
+	it('calls onDragSelect with start and end times in milliseconds for a drag selection', () => {
+		const onDragSelect = jest.fn();
+		const builder = new UPlotConfigBuilder({ onDragSelect });
+
+		const config = builder.getConfig();
+		const setSelectHooks = config.hooks?.setSelect ?? [];
+		expect(setSelectHooks.length).toBe(1);
+
+		const posToVal = jest
+			.fn()
+			// left position
+			.mockReturnValueOnce(100)
+			// left + width
+			.mockReturnValueOnce(110);
+
+		const uplotInstance = ({
+			select: { left: 50, width: 20 },
+			posToVal,
+		} as unknown) as uPlot;
+
+		const setSelectHook = setSelectHooks[0];
+		setSelectHook!(uplotInstance);
+
+		expect(onDragSelect).toHaveBeenCalledTimes(1);
+		// 100 and 110 seconds converted to milliseconds
+		expect(onDragSelect).toHaveBeenCalledWith(100_000, 110_000);
+	});
+
+	it('adds and removes hooks via addHook, and exposes them through getConfig', () => {
+		const builder = new UPlotConfigBuilder();
+		const drawHook = jest.fn();
+
+		const remove = builder.addHook('draw', drawHook as uPlot.Hooks.Defs['draw']);
+
+		let config = builder.getConfig();
+		expect(config.hooks?.draw).toContain(drawHook);
+
+		// Remove and ensure it no longer appears in config
+		remove();
+		config = builder.getConfig();
+		expect(config.hooks?.draw ?? []).not.toContain(drawHook);
+	});
+
+	it('adds axes, scales, and series and wires them into the final config', () => {
+		const builder = new UPlotConfigBuilder();
+
+		// Add axis and scale
+		builder.addAxis({ scaleKey: 'y', label: 'Requests' });
+		builder.addScale({ scaleKey: 'y' });
+
+		// Add two series – legend indices should start from 1 (0 is the timestamp series)
+		builder.addSeries(createSeriesProps({ label: 'Requests' }));
+		builder.addSeries(createSeriesProps({ label: 'Errors' }));
+
+		const config = builder.getConfig();
+
+		// Axes
+		expect(config.axes).toHaveLength(1);
+		expect(config.axes?.[0].scale).toBe('y');
+
+		// Scales are returned as an object keyed by scaleKey
+		expect(config.scales).toBeDefined();
+		expect(Object.keys(config.scales ?? {})).toContain('y');
+
+		// Series: base timestamp + 2 data series
+		expect(config.series).toHaveLength(3);
+		// Base series (index 0) has a value formatter that returns empty string
+		const baseSeries = config.series?.[0] as { value?: () => string };
+		expect(typeof baseSeries?.value).toBe('function');
+		expect(baseSeries?.value?.()).toBe('');
+
+		// Legend items align with series and carry label and color from series config
+		const legendItems = builder.getLegendItems();
+		expect(Object.keys(legendItems)).toEqual(['1', '2']);
+		expect(legendItems[1].seriesIndex).toBe(1);
+		expect(legendItems[1].label).toBe('Requests');
+		expect(legendItems[2].label).toBe('Errors');
+	});
+
+	it('merges axis when addAxis is called twice with same scaleKey', () => {
+		const builder = new UPlotConfigBuilder();
+
+		builder.addAxis({ scaleKey: 'y', label: 'Requests' });
+		builder.addAxis({ scaleKey: 'y', label: 'Updated Label', show: false });
+
+		const config = builder.getConfig();
+
+		expect(config.axes).toHaveLength(1);
+		expect(config.axes?.[0].label).toBe('Updated Label');
+		expect(config.axes?.[0].show).toBe(false);
+	});
+
+	it('merges scale when addScale is called twice with same scaleKey', () => {
+		const builder = new UPlotConfigBuilder();
+
+		builder.addScale({ scaleKey: 'y', min: 0 });
+		builder.addScale({ scaleKey: 'y', max: 100 });
+
+		const config = builder.getConfig();
+
+		// Only one scale entry for 'y' (merge path used, no duplicate added)
+		expect(config.scales).toBeDefined();
+		const scales = config.scales ?? {};
+		expect(Object.keys(scales)).toEqual(['y']);
+		expect(scales.y?.range).toBeDefined();
+	});
+
+	it('restores visibility state from localStorage when selectionPreferencesSource is LOCAL_STORAGE', () => {
+		getStoredSeriesVisibilityMock.getStoredSeriesVisibility.mockReturnValue([
+			{ label: 'Requests', show: true },
+			{ label: 'Errors', show: false },
+		]);
+
+		const builder = new UPlotConfigBuilder({
+			widgetId: 'widget-1',
+			selectionPreferencesSource: SelectionPreferencesSource.LOCAL_STORAGE,
+		});
+
+		builder.addSeries(createSeriesProps({ label: 'Requests' }));
+		builder.addSeries(createSeriesProps({ label: 'Errors' }));
+
+		const legendItems = builder.getLegendItems();
+
+		// When any series is hidden, visibility is driven by stored label-based preferences
+		expect(legendItems[1].show).toBe(true);
+		expect(legendItems[2].show).toBe(false);
+
+		const config = builder.getConfig();
+		const [, firstSeries, secondSeries] = config.series ?? [];
+
+		expect(firstSeries?.show).toBe(true);
+		expect(secondSeries?.show).toBe(false);
+	});
+
+	it('hides new series by default when there is a mixed preference and a visible label matches current series', () => {
+		getStoredSeriesVisibilityMock.getStoredSeriesVisibility.mockReturnValue([
+			{ label: 'Requests', show: true },
+			{ label: 'Errors', show: false },
+		]);
+
+		const builder = new UPlotConfigBuilder({
+			widgetId: 'widget-1',
+			selectionPreferencesSource: SelectionPreferencesSource.LOCAL_STORAGE,
+		});
+
+		builder.addSeries(createSeriesProps({ label: 'Requests' }));
+		builder.addSeries(createSeriesProps({ label: 'Errors' }));
+		builder.addSeries(createSeriesProps({ label: 'Latency' }));
+
+		const legendItems = builder.getLegendItems();
+
+		// Stored labels: Requests (visible), Errors (hidden).
+		// New label "Latency" should be hidden because there is a mixed preference
+		// and "Requests" (a visible stored label) is present in the current series.
+		expect(legendItems[1].label).toBe('Requests');
+		expect(legendItems[1].show).toBe(true);
+		expect(legendItems[2].label).toBe('Errors');
+		expect(legendItems[2].show).toBe(false);
+		expect(legendItems[3].label).toBe('Latency');
+		expect(legendItems[3].show).toBe(false);
+
+		const config = builder.getConfig();
+		const [, firstSeries, secondSeries, thirdSeries] = config.series ?? [];
+
+		expect(firstSeries?.label).toBe('Requests');
+		expect(firstSeries?.show).toBe(true);
+		expect(secondSeries?.label).toBe('Errors');
+		expect(secondSeries?.show).toBe(false);
+		expect(thirdSeries?.label).toBe('Latency');
+		expect(thirdSeries?.show).toBe(false);
+	});
+
+	it('shows all series when there is a mixed preference but no visible stored labels match current series', () => {
+		getStoredSeriesVisibilityMock.getStoredSeriesVisibility.mockReturnValue([
+			{ label: 'StoredVisible', show: true },
+			{ label: 'StoredHidden', show: false },
+		]);
+
+		const builder = new UPlotConfigBuilder({
+			widgetId: 'widget-1',
+			selectionPreferencesSource: SelectionPreferencesSource.LOCAL_STORAGE,
+		});
+
+		// None of these labels intersect with the stored visible label "StoredVisible"
+		builder.addSeries(createSeriesProps({ label: 'CPU' }));
+		builder.addSeries(createSeriesProps({ label: 'Memory' }));
+
+		const legendItems = builder.getLegendItems();
+
+		// Mixed preference exists in storage, but since no visible labels intersect
+		// with current series, stored preferences are ignored and all are visible.
+		expect(legendItems[1].label).toBe('CPU');
+		expect(legendItems[1].show).toBe(true);
+		expect(legendItems[2].label).toBe('Memory');
+		expect(legendItems[2].show).toBe(true);
+
+		const config = builder.getConfig();
+		const [, firstSeries, secondSeries] = config.series ?? [];
+
+		expect(firstSeries?.label).toBe('CPU');
+		expect(firstSeries?.show).toBe(true);
+		expect(secondSeries?.label).toBe('Memory');
+		expect(secondSeries?.show).toBe(true);
+	});
+
+	it('treats duplicate labels as visible when any stored entry for that label is visible', () => {
+		getStoredSeriesVisibilityMock.getStoredSeriesVisibility.mockReturnValue([
+			{ label: 'CPU', show: true },
+			{ label: 'CPU', show: false },
+		]);
+
+		const builder = new UPlotConfigBuilder({
+			widgetId: 'widget-dup',
+			selectionPreferencesSource: SelectionPreferencesSource.LOCAL_STORAGE,
+		});
+
+		// Two series with the same label; both should be visible because at least
+		// one stored entry for "CPU" is visible.
+		builder.addSeries(createSeriesProps({ label: 'CPU' }));
+		builder.addSeries(createSeriesProps({ label: 'CPU' }));
+
+		const legendItems = builder.getLegendItems();
+
+		expect(legendItems[1].label).toBe('CPU');
+		expect(legendItems[1].show).toBe(true);
+		expect(legendItems[2].label).toBe('CPU');
+		expect(legendItems[2].show).toBe(true);
+
+		const config = builder.getConfig();
+		const [, firstSeries, secondSeries] = config.series ?? [];
+
+		expect(firstSeries?.label).toBe('CPU');
+		expect(firstSeries?.show).toBe(true);
+		expect(secondSeries?.label).toBe('CPU');
+		expect(secondSeries?.show).toBe(true);
+	});
+
+	it('does not attempt to read stored visibility when using in-memory preferences', () => {
+		const builder = new UPlotConfigBuilder({
+			widgetId: 'widget-1',
+			selectionPreferencesSource: SelectionPreferencesSource.IN_MEMORY,
+		});
+
+		builder.addSeries(createSeriesProps({ label: 'Requests' }));
+
+		builder.getLegendItems();
+		builder.getConfig();
+
+		expect(
+			getStoredSeriesVisibilityMock.getStoredSeriesVisibility,
+		).not.toHaveBeenCalled();
+	});
+
+	it('adds thresholds only once per scale key', () => {
+		const builder = new UPlotConfigBuilder();
+
+		const thresholdsOptions = {
+			scaleKey: 'y',
+			thresholds: [{ thresholdValue: 100 }],
+		};
+
+		builder.addThresholds(thresholdsOptions);
+		builder.addThresholds(thresholdsOptions);
+
+		const config = builder.getConfig();
+		const drawHooks = config.hooks?.draw ?? [];
+
+		// Only a single draw hook should be registered for the same scaleKey
+		expect(drawHooks.length).toBe(1);
+	});
+
+	it('adds multiple thresholds when scale key is different', () => {
+		const builder = new UPlotConfigBuilder();
+
+		const thresholdsOptions = {
+			scaleKey: 'y',
+			thresholds: [{ thresholdValue: 100 }],
+		};
+		builder.addThresholds(thresholdsOptions);
+		const thresholdsOptions2 = {
+			scaleKey: 'y2',
+			thresholds: [{ thresholdValue: 200 }],
+		};
+		builder.addThresholds(thresholdsOptions2);
+
+		const config = builder.getConfig();
+		const drawHooks = config.hooks?.draw ?? [];
+
+		// Two draw hooks should be registered for different scaleKeys
+		expect(drawHooks.length).toBe(2);
+	});
+
+	it('merges cursor configuration with defaults instead of replacing them', () => {
+		const builder = new UPlotConfigBuilder();
+
+		builder.setCursor({
+			drag: { setScale: false },
+		});
+
+		const config = builder.getConfig();
+
+		expect(config.cursor?.drag?.setScale).toBe(false);
+		// Points configuration from DEFAULT_CURSOR_CONFIG should still be present
+		expect(config.cursor?.points).toBeDefined();
+	});
+
+	it('adds plugins and includes them in config', () => {
+		const builder = new UPlotConfigBuilder();
+		const plugin: uPlot.Plugin = {
+			opts: (): void => {},
+			hooks: {},
+		};
+
+		builder.addPlugin(plugin);
+
+		const config = builder.getConfig();
+
+		expect(config.plugins).toContain(plugin);
+	});
+
+	it('sets padding, legend, focus, select, tzDate, bands and includes them in config', () => {
+		const tzDate = (ts: number): Date => new Date(ts);
+		const builder = new UPlotConfigBuilder();
+
+		const bands: uPlot.Band[] = [{ series: [1, 2], fill: (): string => '#000' }];
+
+		builder.setBands(bands);
+		builder.setPadding([10, 20, 30, 40]);
+		builder.setLegend({ show: true, live: true });
+		builder.setFocus({ alpha: 0.5 });
+		builder.setSelect({ left: 0, width: 0, top: 0, height: 0 });
+		builder.setTzDate(tzDate);
+
+		const config = builder.getConfig();
+
+		expect(config.bands).toEqual(bands);
+		expect(config.padding).toEqual([10, 20, 30, 40]);
+		expect(config.legend).toEqual({ show: true, live: true });
+		expect(config.focus).toEqual({ alpha: 0.5 });
+		expect(config.select).toEqual({ left: 0, width: 0, top: 0, height: 0 });
+		expect(config.tzDate).toBe(tzDate);
+	});
+
+	it('does not include plugins when none added', () => {
+		const builder = new UPlotConfigBuilder();
+
+		const config = builder.getConfig();
+
+		expect(config.plugins).toBeUndefined();
+	});
+
+	it('does not include bands when empty', () => {
+		const builder = new UPlotConfigBuilder();
+
+		const config = builder.getConfig();
+
+		expect(config.bands).toBeUndefined();
+	});
+});

frontend/src/lib/uPlotV2/config/__tests__/UPlotScaleBuilder.test.ts

@@ -0,0 +1,236 @@
+import type uPlot from 'uplot';
+
+import * as scaleUtils from '../../utils/scale';
+import type { ScaleProps } from '../types';
+import { DistributionType } from '../types';
+import { UPlotScaleBuilder } from '../UPlotScaleBuilder';
+
+const createScaleProps = (overrides: Partial<ScaleProps> = {}): ScaleProps => ({
+	scaleKey: 'y',
+	time: false,
+	auto: undefined,
+	min: undefined,
+	max: undefined,
+	softMin: undefined,
+	softMax: undefined,
+	distribution: DistributionType.Linear,
+	...overrides,
+});
+
+describe('UPlotScaleBuilder', () => {
+	const getFallbackMinMaxSpy = jest.spyOn(
+		scaleUtils,
+		'getFallbackMinMaxTimeStamp',
+	);
+
+	beforeEach(() => {
+		jest.clearAllMocks();
+	});
+
+	it('initializes softMin/softMax correctly when both are 0 (treated as unset)', () => {
+		const builder = new UPlotScaleBuilder(
+			createScaleProps({
+				softMin: 0,
+				softMax: 0,
+			}),
+		);
+
+		// Non-time scale so config path uses thresholds pipeline; we just care that
+		// adjustSoftLimitsWithThresholds receives null soft limits instead of 0/0.
+		const adjustSpy = jest.spyOn(scaleUtils, 'adjustSoftLimitsWithThresholds');
+
+		builder.getConfig();
+
+		expect(adjustSpy).toHaveBeenCalledWith(null, null, undefined, undefined);
+	});
+
+	it('handles time scales using explicit min/max and rounds max down to the previous minute', () => {
+		const min = 1_700_000_000; // seconds
+		const max = 1_700_000_600; // seconds
+
+		const builder = new UPlotScaleBuilder(
+			createScaleProps({
+				scaleKey: 'x',
+				time: true,
+				min,
+				max,
+			}),
+		);
+
+		const config = builder.getConfig();
+		const xScale = config.x;
+
+		expect(xScale.time).toBe(true);
+		expect(xScale.auto).toBe(false);
+		expect(Array.isArray(xScale.range)).toBe(true);
+
+		const [resolvedMin, resolvedMax] = xScale.range as [number, number];
+
+		// min is passed through
+		expect(resolvedMin).toBe(min);
+
+		// max is coerced to "endTime - 1 minute" and rounded down to minute precision
+		const oneMinuteAgoTimestamp = (max - 60) * 1000;
+		const currentDate = new Date(oneMinuteAgoTimestamp);
+		currentDate.setSeconds(0);
+		currentDate.setMilliseconds(0);
+		const expectedMax = Math.floor(currentDate.getTime() / 1000);
+
+		expect(resolvedMax).toBe(expectedMax);
+	});
+
+	it('falls back to getFallbackMinMaxTimeStamp when time scale has no min/max', () => {
+		getFallbackMinMaxSpy.mockReturnValue({
+			fallbackMin: 100,
+			fallbackMax: 200,
+		});
+
+		const builder = new UPlotScaleBuilder(
+			createScaleProps({
+				scaleKey: 'x',
+				time: true,
+				min: undefined,
+				max: undefined,
+			}),
+		);
+
+		const config = builder.getConfig();
+		const [resolvedMin, resolvedMax] = config.x.range as [number, number];
+
+		expect(getFallbackMinMaxSpy).toHaveBeenCalled();
+		expect(resolvedMin).toBe(100);
+		// max is aligned to "fallbackMax - 60 seconds" minute boundary
+		expect(resolvedMax).toBeLessThanOrEqual(200);
+		expect(resolvedMax).toBeGreaterThan(100);
+	});
+
+	it('pipes limits through soft-limit adjustment and log-scale normalization before range config', () => {
+		const adjustSpy = jest.spyOn(scaleUtils, 'adjustSoftLimitsWithThresholds');
+		const normalizeSpy = jest.spyOn(scaleUtils, 'normalizeLogScaleLimits');
+		const getRangeConfigSpy = jest.spyOn(scaleUtils, 'getRangeConfig');
+
+		const thresholds = {
+			scaleKey: 'y',
+			thresholds: [{ thresholdValue: 10 }],
+			yAxisUnit: 'ms',
+		};
+
+		const builder = new UPlotScaleBuilder(
+			createScaleProps({
+				softMin: 1,
+				softMax: 5,
+				min: 0,
+				max: 100,
+				distribution: DistributionType.Logarithmic,
+				thresholds,
+				logBase: 2,
+				padMinBy: 0.1,
+				padMaxBy: 0.2,
+			}),
+		);
+
+		builder.getConfig();
+
+		expect(adjustSpy).toHaveBeenCalledWith(1, 5, thresholds.thresholds, 'ms');
+		expect(normalizeSpy).toHaveBeenCalledWith({
+			distr: DistributionType.Logarithmic,
+			logBase: 2,
+			limits: {
+				min: 0,
+				max: 100,
+				softMin: expect.anything(),
+				softMax: expect.anything(),
+			},
+		});
+		expect(getRangeConfigSpy).toHaveBeenCalled();
+	});
+
+	it('computes distribution config for non-time scales and wires range function when range is not provided', () => {
+		const createRangeFnSpy = jest.spyOn(scaleUtils, 'createRangeFunction');
+
+		const builder = new UPlotScaleBuilder(
+			createScaleProps({
+				scaleKey: 'y',
+				time: false,
+				distribution: DistributionType.Linear,
+			}),
+		);
+
+		const config = builder.getConfig();
+		const yScale = config.y;
+
+		expect(createRangeFnSpy).toHaveBeenCalled();
+
+		// range should be a function when not provided explicitly
+		expect(typeof yScale.range).toBe('function');
+
+		// distribution config should be applied
+		expect(yScale.distr).toBeDefined();
+		expect(yScale.log).toBeDefined();
+	});
+
+	it('respects explicit range function when provided on props', () => {
+		const explicitRange: uPlot.Scale.Range = jest.fn(() => [
+			0,
+			10,
+		]) as uPlot.Scale.Range;
+
+		const builder = new UPlotScaleBuilder(
+			createScaleProps({
+				scaleKey: 'y',
+				range: explicitRange,
+			}),
+		);
+
+		const config = builder.getConfig();
+		const yScale = config.y;
+
+		expect(yScale.range).toBe(explicitRange);
+	});
+
+	it('derives auto flag when not explicitly provided, based on hasFixedRange and time', () => {
+		const getRangeConfigSpy = jest.spyOn(scaleUtils, 'getRangeConfig');
+
+		const builder = new UPlotScaleBuilder(
+			createScaleProps({
+				min: 0,
+				max: 100,
+				time: false,
+			}),
+		);
+
+		const config = builder.getConfig();
+		const yScale = config.y;
+
+		expect(getRangeConfigSpy).toHaveBeenCalled();
+		// For non-time scale with fixed min/max, hasFixedRange is true → auto should remain false
+		expect(yScale.auto).toBe(false);
+	});
+
+	it('merge updates internal min/max/soft limits while preserving other props', () => {
+		const builder = new UPlotScaleBuilder(
+			createScaleProps({
+				scaleKey: 'y',
+				min: 0,
+				max: 10,
+				softMin: 1,
+				softMax: 9,
+				time: false,
+			}),
+		);
+
+		builder.merge({
+			min: 2,
+			softMax: undefined,
+		});
+
+		expect(builder.props.min).toBe(2);
+		expect(builder.props.softMax).toBe(undefined);
+		expect(builder.props.max).toBe(10);
+		expect(builder.props.softMin).toBe(1);
+		expect(builder.props.time).toBe(false);
+		expect(builder.props.scaleKey).toBe('y');
+		expect(builder.props.distribution).toBe(DistributionType.Linear);
+		expect(builder.props.thresholds).toBe(undefined);
+	});
+});

frontend/src/lib/uPlotV2/config/__tests__/UPlotSeriesBuilder.test.ts

@@ -0,0 +1,295 @@
+import { PANEL_TYPES } from 'constants/queryBuilder';
+import { themeColors } from 'constants/theme';
+import uPlot from 'uplot';
+
+import type { SeriesProps } from '../types';
+import {
+	DrawStyle,
+	LineInterpolation,
+	LineStyle,
+	VisibilityMode,
+} from '../types';
+import { UPlotSeriesBuilder } from '../UPlotSeriesBuilder';
+
+const createBaseProps = (
+	overrides: Partial<SeriesProps> = {},
+): SeriesProps => ({
+	scaleKey: 'y',
+	label: 'Requests',
+	colorMapping: {},
+	drawStyle: DrawStyle.Line,
+	isDarkMode: false,
+	panelType: PANEL_TYPES.TIME_SERIES,
+	...overrides,
+});
+
+interface MockPath extends uPlot.Series.Paths {
+	name?: string;
+}
+
+describe('UPlotSeriesBuilder', () => {
+	it('maps basic props into uPlot series config', () => {
+		const builder = new UPlotSeriesBuilder(
+			createBaseProps({
+				label: 'Latency',
+				spanGaps: true,
+				show: false,
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.scale).toBe('y');
+		expect(config.label).toBe('Latency');
+		expect(config.spanGaps).toBe(true);
+		expect(config.show).toBe(false);
+		expect(config.pxAlign).toBe(true);
+		expect(typeof config.value).toBe('function');
+	});
+
+	it('uses explicit lineColor when provided, regardless of mapping', () => {
+		const builder = new UPlotSeriesBuilder(
+			createBaseProps({
+				lineColor: '#ff00ff',
+				colorMapping: { Requests: '#00ff00' },
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.stroke).toBe('#ff00ff');
+	});
+
+	it('falls back to theme colors when no label is provided', () => {
+		const darkBuilder = new UPlotSeriesBuilder(
+			createBaseProps({
+				label: undefined,
+				isDarkMode: true,
+				lineColor: undefined,
+			}),
+		);
+		const lightBuilder = new UPlotSeriesBuilder(
+			createBaseProps({
+				label: undefined,
+				isDarkMode: false,
+				lineColor: undefined,
+			}),
+		);
+
+		const darkConfig = darkBuilder.getConfig();
+		const lightConfig = lightBuilder.getConfig();
+
+		expect(darkConfig.stroke).toBe(themeColors.white);
+		expect(lightConfig.stroke).toBe(themeColors.black);
+	});
+
+	it('uses colorMapping when available and no explicit lineColor is provided', () => {
+		const builder = new UPlotSeriesBuilder(
+			createBaseProps({
+				label: 'Requests',
+				colorMapping: { Requests: '#123456' },
+				lineColor: undefined,
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.stroke).toBe('#123456');
+	});
+
+	it('passes through a custom pathBuilder when provided', () => {
+		const customPaths = (jest.fn() as unknown) as uPlot.Series.PathBuilder;
+
+		const builder = new UPlotSeriesBuilder(
+			createBaseProps({
+				pathBuilder: customPaths,
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.paths).toBe(customPaths);
+	});
+
+	it('does not build line paths when drawStyle is Points, but still renders points', () => {
+		const builder = new UPlotSeriesBuilder(
+			createBaseProps({
+				drawStyle: DrawStyle.Points,
+				pointSize: 4,
+				lineWidth: 2,
+				lineColor: '#aa00aa',
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(typeof config.paths).toBe('function');
+		expect(config.paths && config.paths({} as uPlot, 1, 0, 10)).toBeNull();
+
+		expect(config.points).toBeDefined();
+		expect(config.points?.stroke).toBe('#aa00aa');
+		expect(config.points?.fill).toBe('#aa00aa');
+		expect(config.points?.show).toBe(true);
+		expect(config.points?.size).toBe(4);
+	});
+
+	it('derives point size based on lineWidth and pointSize', () => {
+		const smallPointsBuilder = new UPlotSeriesBuilder(
+			createBaseProps({
+				lineWidth: 4,
+				pointSize: 2,
+			}),
+		);
+		const largePointsBuilder = new UPlotSeriesBuilder(
+			createBaseProps({
+				lineWidth: 2,
+				pointSize: 4,
+			}),
+		);
+
+		const smallConfig = smallPointsBuilder.getConfig();
+		const largeConfig = largePointsBuilder.getConfig();
+
+		expect(smallConfig.points?.size).toBeUndefined();
+		expect(largeConfig.points?.size).toBe(4);
+	});
+
+	it('uses pointsBuilder when provided instead of default visibility logic', () => {
+		const pointsBuilder: uPlot.Series.Points.Show = jest.fn(
+			() => true,
+		) as uPlot.Series.Points.Show;
+
+		const builder = new UPlotSeriesBuilder(
+			createBaseProps({
+				pointsBuilder,
+				drawStyle: DrawStyle.Line,
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.points?.show).toBe(pointsBuilder);
+	});
+
+	it('respects VisibilityMode for point visibility when no custom pointsBuilder is given', () => {
+		const neverPointsBuilder = new UPlotSeriesBuilder(
+			createBaseProps({
+				drawStyle: DrawStyle.Line,
+				showPoints: VisibilityMode.Never,
+			}),
+		);
+		const alwaysPointsBuilder = new UPlotSeriesBuilder(
+			createBaseProps({
+				drawStyle: DrawStyle.Line,
+				showPoints: VisibilityMode.Always,
+			}),
+		);
+
+		const neverConfig = neverPointsBuilder.getConfig();
+		const alwaysConfig = alwaysPointsBuilder.getConfig();
+
+		expect(neverConfig.points?.show).toBe(false);
+		expect(alwaysConfig.points?.show).toBe(true);
+	});
+
+	it('applies LineStyle.Dashed and lineCap to line config', () => {
+		const builder = new UPlotSeriesBuilder(
+			createBaseProps({
+				lineStyle: LineStyle.Dashed,
+				lineCap: 'round' as CanvasLineCap,
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.dash).toEqual([10, 10]);
+		expect(config.cap).toBe('round');
+	});
+
+	it('builds default paths for Line drawStyle and invokes the path builder', () => {
+		const builder = new UPlotSeriesBuilder(
+			createBaseProps({
+				drawStyle: DrawStyle.Line,
+				lineInterpolation: LineInterpolation.Linear,
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		const result = config.paths?.({} as uPlot, 1, 0, 10);
+		expect((result as MockPath).name).toBe('linear');
+	});
+
+	it('uses StepBefore and StepAfter interpolation for line paths', () => {
+		const stepBeforeBuilder = new UPlotSeriesBuilder(
+			createBaseProps({
+				drawStyle: DrawStyle.Line,
+				lineInterpolation: LineInterpolation.StepBefore,
+			}),
+		);
+		const stepAfterBuilder = new UPlotSeriesBuilder(
+			createBaseProps({
+				drawStyle: DrawStyle.Line,
+				lineInterpolation: LineInterpolation.StepAfter,
+			}),
+		);
+
+		const stepBeforeConfig = stepBeforeBuilder.getConfig();
+		const stepAfterConfig = stepAfterBuilder.getConfig();
+		const stepBeforePath = stepBeforeConfig.paths?.({} as uPlot, 1, 0, 5);
+		const stepAfterPath = stepAfterConfig.paths?.({} as uPlot, 1, 0, 5);
+		expect((stepBeforePath as MockPath).name).toBe('stepped-(-1)');
+		expect((stepAfterPath as MockPath).name).toBe('stepped-(1)');
+	});
+
+	it('defaults to spline interpolation when lineInterpolation is Spline or undefined', () => {
+		const splineBuilder = new UPlotSeriesBuilder(
+			createBaseProps({
+				drawStyle: DrawStyle.Line,
+				lineInterpolation: LineInterpolation.Spline,
+			}),
+		);
+		const defaultBuilder = new UPlotSeriesBuilder(
+			createBaseProps({ drawStyle: DrawStyle.Line }),
+		);
+
+		const splineConfig = splineBuilder.getConfig();
+		const defaultConfig = defaultBuilder.getConfig();
+
+		const splinePath = splineConfig.paths?.({} as uPlot, 1, 0, 10);
+		const defaultPath = defaultConfig.paths?.({} as uPlot, 1, 0, 10);
+
+		expect((splinePath as MockPath).name).toBe('spline');
+		expect((defaultPath as MockPath).name).toBe('spline');
+	});
+
+	it('uses generateColor when label has no colorMapping and no lineColor', () => {
+		const builder = new UPlotSeriesBuilder(
+			createBaseProps({
+				label: 'CustomSeries',
+				colorMapping: {},
+				lineColor: undefined,
+			}),
+		);
+
+		const config = builder.getConfig();
+		expect(config.stroke).toBe('#E64A3C');
+	});
+
+	it('passes through pointsFilter when provided', () => {
+		const pointsFilter: uPlot.Series.Points.Filter = jest.fn(
+			(_self, _seriesIdx, _show) => null,
+		);
+
+		const builder = new UPlotSeriesBuilder(
+			createBaseProps({
+				pointsFilter,
+				drawStyle: DrawStyle.Line,
+			}),
+		);
+
+		const config = builder.getConfig();
+
+		expect(config.points?.filter).toBe(pointsFilter);
+	});
+});

frontend/src/lib/uPlotV2/config/types.ts

@@ -126,7 +126,45 @@ export enum VisibilityMode {
 	Never = 'never',
 }
 
-export interface SeriesProps {
+/**
+ * Props for configuring lines
+ */
+export interface LineConfig {
+	lineColor?: string;
+	lineInterpolation?: LineInterpolation;
+	lineStyle?: LineStyle;
+	lineWidth?: number;
+	lineCap?: Series.Cap;
+}
+
+/**
+ * Alignment of bars
+ */
+export enum BarAlignment {
+	After = 1,
+	Before = -1,
+	Center = 0,
+}
+
+/**
+ * Props for configuring bars
+ */
+export interface BarConfig {
+	barAlignment?: BarAlignment;
+	barMaxWidth?: number;
+	barWidthFactor?: number;
+}
+
+/**
+ * Props for configuring points
+ */
+export interface PointsConfig {
+	pointColor?: string;
+	pointSize?: number;
+	showPoints?: VisibilityMode;
+}
+
+export interface SeriesProps extends LineConfig, PointsConfig, BarConfig {
 	scaleKey: string;
 	label?: string;
 	panelType: PANEL_TYPES;
@@ -137,20 +175,8 @@ export interface SeriesProps {
 	pointsBuilder?: Series.Points.Show;
 	show?: boolean;
 	spanGaps?: boolean;
-
 	isDarkMode?: boolean;
-
-	// Line config
-	lineColor?: string;
-	lineInterpolation?: LineInterpolation;
-	lineStyle?: LineStyle;
-	lineWidth?: number;
-	lineCap?: Series.Cap;
-
-	// Points config
-	pointColor?: string;
-	pointSize?: number;
-	showPoints?: VisibilityMode;
+	stepInterval?: number;
 }
 
 export interface LegendItem {

frontend/src/lib/uPlotV2/context/__tests__/PlotContext.test.tsx

@@ -0,0 +1,395 @@
+import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { updateSeriesVisibilityToLocalStorage } from 'container/DashboardContainer/visualization/panels/utils/legendVisibilityUtils';
+import {
+	PlotContextProvider,
+	usePlotContext,
+} from 'lib/uPlotV2/context/PlotContext';
+import type uPlot from 'uplot';
+
+jest.mock(
+	'container/DashboardContainer/visualization/panels/utils/legendVisibilityUtils',
+	() => ({
+		updateSeriesVisibilityToLocalStorage: jest.fn(),
+	}),
+);
+
+const mockUpdateSeriesVisibilityToLocalStorage = updateSeriesVisibilityToLocalStorage as jest.MockedFunction<
+	typeof updateSeriesVisibilityToLocalStorage
+>;
+
+interface MockSeries extends Partial<uPlot.Series> {
+	label?: string;
+	show?: boolean;
+}
+
+const createMockPlot = (series: MockSeries[] = []): uPlot =>
+	(({
+		series,
+		batch: jest.fn((fn: () => void) => fn()),
+		setSeries: jest.fn(),
+	} as unknown) as uPlot);
+
+interface TestComponentProps {
+	plot?: uPlot;
+	widgetId?: string;
+	shouldSaveSelectionPreference?: boolean;
+}
+
+const TestComponent = ({
+	plot,
+	widgetId,
+	shouldSaveSelectionPreference,
+}: TestComponentProps): JSX.Element => {
+	const {
+		setPlotContextInitialState,
+		syncSeriesVisibilityToLocalStorage,
+		onToggleSeriesVisibility,
+		onToggleSeriesOnOff,
+		onFocusSeries,
+	} = usePlotContext();
+	const handleInit = (): void => {
+		if (
+			!plot ||
+			!widgetId ||
+			typeof shouldSaveSelectionPreference !== 'boolean'
+		) {
+			return;
+		}
+
+		setPlotContextInitialState({
+			uPlotInstance: plot,
+			widgetId,
+			shouldSaveSelectionPreference,
+		});
+	};
+
+	return (
+		<div>
+			<button type="button" data-testid="init" onClick={handleInit}>
+				Init
+			</button>
+			<button
+				type="button"
+				data-testid="sync-visibility"
+				onClick={(): void => syncSeriesVisibilityToLocalStorage()}
+			>
+				Sync visibility
+			</button>
+			<button
+				type="button"
+				data-testid="toggle-visibility"
+				onClick={(): void => onToggleSeriesVisibility(1)}
+			>
+				Toggle visibility
+			</button>
+			<button
+				type="button"
+				data-testid="toggle-on-off-1"
+				onClick={(): void => onToggleSeriesOnOff(1)}
+			>
+				Toggle on/off 1
+			</button>
+			<button
+				type="button"
+				data-testid="toggle-on-off-5"
+				onClick={(): void => onToggleSeriesOnOff(5)}
+			>
+				Toggle on/off 5
+			</button>
+			<button
+				type="button"
+				data-testid="focus-series"
+				onClick={(): void => onFocusSeries(1)}
+			>
+				Focus series
+			</button>
+		</div>
+	);
+};
+
+describe('PlotContext', () => {
+	afterEach(() => {
+		jest.clearAllMocks();
+	});
+
+	it('throws when usePlotContext is used outside provider', () => {
+		const Consumer = (): JSX.Element => {
+			// eslint-disable-next-line react-hooks/rules-of-hooks
+			usePlotContext();
+			return <div />;
+		};
+
+		expect(() => render(<Consumer />)).toThrow(
+			'Should be used inside the context',
+		);
+	});
+
+	it('syncSeriesVisibilityToLocalStorage does nothing without plot or widgetId', async () => {
+		const user = userEvent.setup();
+
+		render(
+			<PlotContextProvider>
+				<TestComponent />
+			</PlotContextProvider>,
+		);
+
+		await user.click(screen.getByTestId('sync-visibility'));
+
+		expect(mockUpdateSeriesVisibilityToLocalStorage).not.toHaveBeenCalled();
+	});
+
+	it('syncSeriesVisibilityToLocalStorage serializes series visibility to localStorage helper', async () => {
+		const user = userEvent.setup();
+		const plot = createMockPlot([
+			{ label: 'x-axis', show: true },
+			{ label: 'CPU', show: true },
+			{ label: 'Memory', show: false },
+		]);
+
+		render(
+			<PlotContextProvider>
+				<TestComponent
+					plot={plot}
+					widgetId="widget-123"
+					shouldSaveSelectionPreference
+				/>
+			</PlotContextProvider>,
+		);
+
+		await user.click(screen.getByTestId('init'));
+		await user.click(screen.getByTestId('sync-visibility'));
+
+		expect(mockUpdateSeriesVisibilityToLocalStorage).toHaveBeenCalledTimes(1);
+		expect(mockUpdateSeriesVisibilityToLocalStorage).toHaveBeenCalledWith(
+			'widget-123',
+			[
+				{ label: 'x-axis', show: true },
+				{ label: 'CPU', show: true },
+				{ label: 'Memory', show: false },
+			],
+		);
+	});
+
+	describe('onToggleSeriesVisibility', () => {
+		it('does nothing when plot instance is not set', async () => {
+			const user = userEvent.setup();
+
+			render(
+				<PlotContextProvider>
+					<TestComponent />
+				</PlotContextProvider>,
+			);
+
+			await user.click(screen.getByTestId('toggle-visibility'));
+
+			// No errors and no calls to localStorage helper
+			expect(mockUpdateSeriesVisibilityToLocalStorage).not.toHaveBeenCalled();
+		});
+
+		it('highlights a single series and saves visibility when preferences are enabled', async () => {
+			const user = userEvent.setup();
+			const series: MockSeries[] = [
+				{ label: 'x-axis', show: true },
+				{ label: 'CPU', show: true },
+				{ label: 'Memory', show: true },
+			];
+			const plot = createMockPlot(series);
+
+			render(
+				<PlotContextProvider>
+					<TestComponent
+						plot={plot}
+						widgetId="widget-visibility"
+						shouldSaveSelectionPreference
+					/>
+				</PlotContextProvider>,
+			);
+
+			await user.click(screen.getByTestId('init'));
+			await user.click(screen.getByTestId('toggle-visibility'));
+
+			const setSeries = (plot.setSeries as jest.Mock).mock.calls;
+
+			// index 0 is skipped, so we expect calls for 1 and 2
+			expect(setSeries).toEqual([
+				[1, { show: true }],
+				[2, { show: false }],
+			]);
+
+			expect(mockUpdateSeriesVisibilityToLocalStorage).toHaveBeenCalledTimes(1);
+			expect(mockUpdateSeriesVisibilityToLocalStorage).toHaveBeenCalledWith(
+				'widget-visibility',
+				[
+					{ label: 'x-axis', show: true },
+					{ label: 'CPU', show: true },
+					{ label: 'Memory', show: true },
+				],
+			);
+		});
+
+		it('resets visibility for all series when toggling the same index again', async () => {
+			const user = userEvent.setup();
+			const series: MockSeries[] = [
+				{ label: 'x-axis', show: true },
+				{ label: 'CPU', show: true },
+				{ label: 'Memory', show: true },
+			];
+			const plot = createMockPlot(series);
+
+			render(
+				<PlotContextProvider>
+					<TestComponent
+						plot={plot}
+						widgetId="widget-reset"
+						shouldSaveSelectionPreference
+					/>
+				</PlotContextProvider>,
+			);
+
+			await user.click(screen.getByTestId('init'));
+			await user.click(screen.getByTestId('toggle-visibility'));
+
+			(plot.setSeries as jest.Mock).mockClear();
+
+			await user.click(screen.getByTestId('toggle-visibility'));
+
+			const setSeries = (plot.setSeries as jest.Mock).mock.calls;
+
+			// After reset, all non-zero series should be shown
+			expect(setSeries).toEqual([
+				[1, { show: true }],
+				[2, { show: true }],
+			]);
+		});
+	});
+
+	describe('onToggleSeriesOnOff', () => {
+		it('does nothing when plot instance is not set', async () => {
+			const user = userEvent.setup();
+
+			render(
+				<PlotContextProvider>
+					<TestComponent />
+				</PlotContextProvider>,
+			);
+
+			await user.click(screen.getByTestId('toggle-on-off-1'));
+
+			expect(mockUpdateSeriesVisibilityToLocalStorage).not.toHaveBeenCalled();
+		});
+
+		it('toggles series show flag and saves visibility when preferences are enabled', async () => {
+			const user = userEvent.setup();
+			const series: MockSeries[] = [
+				{ label: 'x-axis', show: true },
+				{ label: 'CPU', show: true },
+			];
+			const plot = createMockPlot(series);
+
+			render(
+				<PlotContextProvider>
+					<TestComponent
+						plot={plot}
+						widgetId="widget-toggle"
+						shouldSaveSelectionPreference
+					/>
+				</PlotContextProvider>,
+			);
+
+			await user.click(screen.getByTestId('init'));
+			await user.click(screen.getByTestId('toggle-on-off-1'));
+
+			expect(plot.setSeries).toHaveBeenCalledWith(1, { show: false });
+			expect(mockUpdateSeriesVisibilityToLocalStorage).toHaveBeenCalledTimes(1);
+			expect(mockUpdateSeriesVisibilityToLocalStorage).toHaveBeenCalledWith(
+				'widget-toggle',
+				expect.any(Array),
+			);
+		});
+
+		it('does not toggle when target series does not exist', async () => {
+			const user = userEvent.setup();
+			const series: MockSeries[] = [{ label: 'x-axis', show: true }];
+			const plot = createMockPlot(series);
+
+			render(
+				<PlotContextProvider>
+					<TestComponent
+						plot={plot}
+						widgetId="widget-missing-series"
+						shouldSaveSelectionPreference
+					/>
+				</PlotContextProvider>,
+			);
+
+			await user.click(screen.getByTestId('init'));
+			await user.click(screen.getByTestId('toggle-on-off-5'));
+
+			expect(plot.setSeries).not.toHaveBeenCalled();
+			expect(mockUpdateSeriesVisibilityToLocalStorage).not.toHaveBeenCalled();
+		});
+
+		it('does not persist visibility when preferences flag is disabled', async () => {
+			const user = userEvent.setup();
+			const series: MockSeries[] = [
+				{ label: 'x-axis', show: true },
+				{ label: 'CPU', show: true },
+			];
+			const plot = createMockPlot(series);
+
+			render(
+				<PlotContextProvider>
+					<TestComponent
+						plot={plot}
+						widgetId="widget-no-persist"
+						shouldSaveSelectionPreference={false}
+					/>
+				</PlotContextProvider>,
+			);
+
+			await user.click(screen.getByTestId('init'));
+			await user.click(screen.getByTestId('toggle-on-off-1'));
+
+			expect(plot.setSeries).toHaveBeenCalledWith(1, { show: false });
+			expect(mockUpdateSeriesVisibilityToLocalStorage).not.toHaveBeenCalled();
+		});
+	});
+
+	describe('onFocusSeries', () => {
+		it('does nothing when plot instance is not set', async () => {
+			const user = userEvent.setup();
+
+			render(
+				<PlotContextProvider>
+					<TestComponent />
+				</PlotContextProvider>,
+			);
+
+			await user.click(screen.getByTestId('focus-series'));
+		});
+
+		it('sets focus on the given series index', async () => {
+			const user = userEvent.setup();
+			const plot = createMockPlot([
+				{ label: 'x-axis', show: true },
+				{ label: 'CPU', show: true },
+			]);
+
+			render(
+				<PlotContextProvider>
+					<TestComponent
+						plot={plot}
+						widgetId="widget-focus"
+						shouldSaveSelectionPreference={false}
+					/>
+				</PlotContextProvider>,
+			);
+
+			await user.click(screen.getByTestId('init'));
+			await user.click(screen.getByTestId('focus-series'));
+
+			expect(plot.setSeries).toHaveBeenCalledWith(1, { focus: true }, false);
+		});
+	});
+});

frontend/src/lib/uPlotV2/hooks/__tests__/useLegendActions.test.ts

@@ -0,0 +1,201 @@
+import { renderHook } from '@testing-library/react';
+import { usePlotContext } from 'lib/uPlotV2/context/PlotContext';
+import { useLegendActions } from 'lib/uPlotV2/hooks/useLegendActions';
+
+jest.mock('lib/uPlotV2/context/PlotContext');
+
+const mockUsePlotContext = usePlotContext as jest.MockedFunction<
+	typeof usePlotContext
+>;
+
+describe('useLegendActions', () => {
+	let onToggleSeriesVisibility: jest.Mock;
+	let onToggleSeriesOnOff: jest.Mock;
+	let onFocusSeriesPlot: jest.Mock;
+	let setPlotContextInitialState: jest.Mock;
+	let syncSeriesVisibilityToLocalStorage: jest.Mock;
+	let setFocusedSeriesIndexMock: jest.Mock;
+	let cancelAnimationFrameSpy: jest.SpyInstance<void, [handle: number]>;
+
+	beforeAll(() => {
+		jest
+			.spyOn(global, 'requestAnimationFrame')
+			.mockImplementation((cb: FrameRequestCallback): number => {
+				cb(0);
+				return 1;
+			});
+
+		cancelAnimationFrameSpy = jest
+			.spyOn(global, 'cancelAnimationFrame')
+			.mockImplementation(() => {});
+	});
+
+	afterAll(() => {
+		jest.restoreAllMocks();
+	});
+
+	beforeEach(() => {
+		onToggleSeriesVisibility = jest.fn();
+		onToggleSeriesOnOff = jest.fn();
+		onFocusSeriesPlot = jest.fn();
+		setPlotContextInitialState = jest.fn();
+		syncSeriesVisibilityToLocalStorage = jest.fn();
+		setFocusedSeriesIndexMock = jest.fn();
+
+		mockUsePlotContext.mockReturnValue({
+			onToggleSeriesVisibility,
+			onToggleSeriesOnOff,
+			onFocusSeries: onFocusSeriesPlot,
+			setPlotContextInitialState,
+			syncSeriesVisibilityToLocalStorage,
+		});
+
+		cancelAnimationFrameSpy.mockClear();
+	});
+
+	const createMouseEvent = (options: {
+		legendItemId?: number;
+		isMarker?: boolean;
+	}): any => {
+		const { legendItemId, isMarker = false } = options;
+
+		return {
+			target: {
+				dataset: {
+					...(isMarker ? { isLegendMarker: 'true' } : {}),
+				},
+				closest: jest.fn(() =>
+					legendItemId !== undefined
+						? { dataset: { legendItemId: String(legendItemId) } }
+						: null,
+				),
+			},
+		};
+	};
+
+	describe('onLegendClick', () => {
+		it('toggles series visibility when clicking on legend label', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: null,
+				}),
+			);
+
+			result.current.onLegendClick(createMouseEvent({ legendItemId: 0 }));
+
+			expect(onToggleSeriesVisibility).toHaveBeenCalledTimes(1);
+			expect(onToggleSeriesVisibility).toHaveBeenCalledWith(0);
+			expect(onToggleSeriesOnOff).not.toHaveBeenCalled();
+		});
+
+		it('toggles series on/off when clicking on marker', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: null,
+				}),
+			);
+
+			result.current.onLegendClick(
+				createMouseEvent({ legendItemId: 0, isMarker: true }),
+			);
+
+			expect(onToggleSeriesOnOff).toHaveBeenCalledTimes(1);
+			expect(onToggleSeriesOnOff).toHaveBeenCalledWith(0);
+			expect(onToggleSeriesVisibility).not.toHaveBeenCalled();
+		});
+
+		it('does nothing when click target is not inside a legend item', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: null,
+				}),
+			);
+
+			result.current.onLegendClick(createMouseEvent({}));
+
+			expect(onToggleSeriesOnOff).not.toHaveBeenCalled();
+			expect(onToggleSeriesVisibility).not.toHaveBeenCalled();
+		});
+	});
+
+	describe('onFocusSeries', () => {
+		it('schedules focus update and calls plot focus handler via mouse move', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: null,
+				}),
+			);
+
+			result.current.onLegendMouseMove(createMouseEvent({ legendItemId: 0 }));
+
+			expect(setFocusedSeriesIndexMock).toHaveBeenCalledWith(0);
+			expect(onFocusSeriesPlot).toHaveBeenCalledWith(0);
+		});
+
+		it('cancels previous animation frame before scheduling new one on subsequent mouse moves', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: null,
+				}),
+			);
+
+			result.current.onLegendMouseMove(createMouseEvent({ legendItemId: 0 }));
+			result.current.onLegendMouseMove(createMouseEvent({ legendItemId: 1 }));
+
+			expect(cancelAnimationFrameSpy).toHaveBeenCalled();
+		});
+	});
+
+	describe('onLegendMouseMove', () => {
+		it('focuses new series when hovering over different legend item', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: 0,
+				}),
+			);
+
+			result.current.onLegendMouseMove(createMouseEvent({ legendItemId: 1 }));
+
+			expect(setFocusedSeriesIndexMock).toHaveBeenCalledWith(1);
+			expect(onFocusSeriesPlot).toHaveBeenCalledWith(1);
+		});
+
+		it('does nothing when hovering over already focused series', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: 1,
+				}),
+			);
+
+			result.current.onLegendMouseMove(createMouseEvent({ legendItemId: 1 }));
+
+			expect(setFocusedSeriesIndexMock).not.toHaveBeenCalled();
+			expect(onFocusSeriesPlot).not.toHaveBeenCalled();
+		});
+	});
+
+	describe('onLegendMouseLeave', () => {
+		it('cancels pending animation frame and clears focus state', async () => {
+			const { result } = renderHook(() =>
+				useLegendActions({
+					setFocusedSeriesIndex: setFocusedSeriesIndexMock,
+					focusedSeriesIndex: null,
+				}),
+			);
+
+			result.current.onLegendMouseMove(createMouseEvent({ legendItemId: 0 }));
+			result.current.onLegendMouseLeave();
+
+			expect(cancelAnimationFrameSpy).toHaveBeenCalled();
+			expect(setFocusedSeriesIndexMock).toHaveBeenCalledWith(null);
+			expect(onFocusSeriesPlot).toHaveBeenCalledWith(null);
+		});
+	});
+});

frontend/src/lib/uPlotV2/hooks/__tests__/useLegendsSync.test.ts

@@ -0,0 +1,192 @@
+import { act, cleanup, renderHook } from '@testing-library/react';
+import type { LegendItem } from 'lib/uPlotV2/config/types';
+import type { UPlotConfigBuilder } from 'lib/uPlotV2/config/UPlotConfigBuilder';
+import useLegendsSync from 'lib/uPlotV2/hooks/useLegendsSync';
+
+describe('useLegendsSync', () => {
+	let requestAnimationFrameSpy: jest.SpyInstance<
+		number,
+		[callback: FrameRequestCallback]
+	>;
+	let cancelAnimationFrameSpy: jest.SpyInstance<void, [handle: number]>;
+
+	beforeAll(() => {
+		requestAnimationFrameSpy = jest
+			.spyOn(global, 'requestAnimationFrame')
+			.mockImplementation((cb: FrameRequestCallback): number => {
+				cb(0);
+				return 1;
+			});
+
+		cancelAnimationFrameSpy = jest
+			.spyOn(global, 'cancelAnimationFrame')
+			.mockImplementation(() => {});
+	});
+
+	afterEach(() => {
+		jest.clearAllMocks();
+		cleanup();
+	});
+
+	afterAll(() => {
+		jest.restoreAllMocks();
+	});
+
+	const createMockConfig = (
+		legendItems: Record<number, LegendItem>,
+	): {
+		config: UPlotConfigBuilder;
+		invokeSetSeries: (
+			seriesIndex: number | null,
+			opts: { show?: boolean; focus?: boolean },
+			fireHook?: boolean,
+		) => void;
+	} => {
+		let setSeriesHandler:
+			| ((u: uPlot, seriesIndex: number | null, opts: uPlot.Series) => void)
+			| null = null;
+
+		const config = ({
+			getLegendItems: jest.fn(() => legendItems),
+			addHook: jest.fn(
+				(
+					hookName: string,
+					handler: (
+						u: uPlot,
+						seriesIndex: number | null,
+						opts: uPlot.Series,
+					) => void,
+				) => {
+					if (hookName === 'setSeries') {
+						setSeriesHandler = handler;
+					}
+
+					return (): void => {
+						setSeriesHandler = null;
+					};
+				},
+			),
+		} as unknown) as UPlotConfigBuilder;
+
+		const invokeSetSeries = (
+			seriesIndex: number | null,
+			opts: { show?: boolean; focus?: boolean },
+		): void => {
+			if (setSeriesHandler) {
+				setSeriesHandler({} as uPlot, seriesIndex, { ...opts });
+			}
+		};
+
+		return { config, invokeSetSeries };
+	};
+
+	it('initializes legend items from config', () => {
+		const initialItems: Record<number, LegendItem> = {
+			1: { seriesIndex: 1, label: 'CPU', show: true, color: '#f00' },
+			2: { seriesIndex: 2, label: 'Memory', show: false, color: '#0f0' },
+		};
+
+		const { config } = createMockConfig(initialItems);
+
+		const { result } = renderHook(() => useLegendsSync({ config }));
+
+		expect(config.getLegendItems).toHaveBeenCalledTimes(1);
+		expect(config.addHook).toHaveBeenCalledWith(
+			'setSeries',
+			expect.any(Function),
+		);
+
+		expect(result.current.legendItemsMap).toEqual(initialItems);
+	});
+
+	it('updates focusedSeriesIndex when a series gains focus via setSeries by default', async () => {
+		const initialItems: Record<number, LegendItem> = {
+			1: { seriesIndex: 1, label: 'CPU', show: true, color: '#f00' },
+		};
+
+		const { config, invokeSetSeries } = createMockConfig(initialItems);
+
+		const { result } = renderHook(() => useLegendsSync({ config }));
+
+		expect(result.current.focusedSeriesIndex).toBeNull();
+
+		await act(async () => {
+			invokeSetSeries(1, { focus: true });
+		});
+
+		expect(result.current.focusedSeriesIndex).toBe(1);
+	});
+
+	it('does not update focusedSeriesIndex when subscribeToFocusChange is false', () => {
+		const initialItems: Record<number, LegendItem> = {
+			1: { seriesIndex: 1, label: 'CPU', show: true, color: '#f00' },
+		};
+
+		const { config, invokeSetSeries } = createMockConfig(initialItems);
+
+		const { result } = renderHook(() =>
+			useLegendsSync({ config, subscribeToFocusChange: false }),
+		);
+
+		invokeSetSeries(1, { focus: true });
+
+		expect(result.current.focusedSeriesIndex).toBeNull();
+	});
+
+	it('updates legendItemsMap visibility when show changes for a series', async () => {
+		const initialItems: Record<number, LegendItem> = {
+			0: { seriesIndex: 0, label: 'x-axis', show: true, color: '#000' },
+			1: { seriesIndex: 1, label: 'CPU', show: true, color: '#f00' },
+		};
+
+		const { config, invokeSetSeries } = createMockConfig(initialItems);
+
+		const { result } = renderHook(() => useLegendsSync({ config }));
+
+		// Toggle visibility of series 1
+		await act(async () => {
+			invokeSetSeries(1, { show: false });
+		});
+
+		expect(result.current.legendItemsMap[1].show).toBe(false);
+	});
+
+	it('ignores visibility updates for unknown legend items or unchanged show values', () => {
+		const initialItems: Record<number, LegendItem> = {
+			1: { seriesIndex: 1, label: 'CPU', show: true, color: '#f00' },
+		};
+
+		const { config, invokeSetSeries } = createMockConfig(initialItems);
+
+		const { result } = renderHook(() => useLegendsSync({ config }));
+
+		const before = result.current.legendItemsMap;
+
+		// Unknown series index
+		invokeSetSeries(5, { show: false });
+		// Unchanged visibility for existing item
+		invokeSetSeries(1, { show: true });
+
+		const after = result.current.legendItemsMap;
+		expect(after).toEqual(before);
+	});
+
+	it('cancels pending visibility RAF on unmount', () => {
+		const initialItems: Record<number, LegendItem> = {
+			1: { seriesIndex: 1, label: 'CPU', show: true, color: '#f00' },
+		};
+
+		const { config, invokeSetSeries } = createMockConfig(initialItems);
+
+		// Override RAF to not immediately invoke callback so we can assert cancellation
+		requestAnimationFrameSpy.mockImplementationOnce(() => 42);
+
+		const { unmount } = renderHook(() => useLegendsSync({ config }));
+
+		invokeSetSeries(1, { show: false });
+
+		unmount();
+
+		expect(cancelAnimationFrameSpy).toHaveBeenCalledWith(42);
+	});
+});

frontend/src/lib/uPlotV2/utils/__tests__/axis.test.ts

@@ -0,0 +1,218 @@
+import type uPlot from 'uplot';
+import { Axis } from 'uplot';
+
+import {
+	buildYAxisSizeCalculator,
+	calculateTextWidth,
+	getExistingAxisSize,
+} from '../axis';
+
+describe('axis utils', () => {
+	describe('calculateTextWidth', () => {
+		it('returns 0 when values are undefined or empty', () => {
+			const mockSelf = ({
+				ctx: {
+					measureText: jest.fn(),
+					font: '',
+				},
+			} as unknown) as uPlot;
+
+			// internally the type is string but it is an array of strings
+			const mockAxis: Axis = { font: (['12px sans-serif'] as unknown) as string };
+
+			expect(calculateTextWidth(mockSelf, mockAxis, undefined)).toBe(0);
+			expect(calculateTextWidth(mockSelf, mockAxis, [])).toBe(0);
+		});
+
+		it('returns 0 when longest value is empty string or axis has no usable font', () => {
+			const mockSelf = ({
+				ctx: {
+					measureText: jest.fn(),
+					font: '',
+				},
+			} as unknown) as uPlot;
+
+			const axisWithoutFont: Axis = { font: '' };
+			const axisWithEmptyFontArray: Axis = { font: '' };
+
+			expect(calculateTextWidth(mockSelf, axisWithoutFont, [''])).toBe(0);
+			expect(
+				calculateTextWidth(mockSelf, axisWithEmptyFontArray, ['a', 'bb']),
+			).toBe(0);
+		});
+
+		it('measures longest value using canvas context and axis font', () => {
+			const measureText = jest.fn(() => ({ width: 100 }));
+			const mockSelf = ({
+				ctx: {
+					font: '',
+					measureText,
+				},
+			} as unknown) as uPlot;
+
+			const mockAxis: Axis = { font: (['14px Arial'] as unknown) as string };
+			const values = ['1', '1234', '12'];
+			const dpr =
+				((global as unknown) as { devicePixelRatio?: number }).devicePixelRatio ??
+				1;
+
+			const result = calculateTextWidth(mockSelf, mockAxis, values);
+
+			expect(measureText).toHaveBeenCalledWith('1234');
+			expect(mockSelf.ctx.font).toBe('14px Arial');
+			expect(result).toBe(100 / dpr);
+		});
+	});
+
+	describe('getExistingAxisSize', () => {
+		it('returns internal _size when present', () => {
+			const axis: any = {
+				_size: 42,
+				size: 10,
+			};
+
+			const result = getExistingAxisSize({
+				uplotInstance: ({} as unknown) as uPlot,
+				axis,
+				axisIdx: 0,
+				cycleNum: 0,
+			});
+
+			expect(result).toBe(42);
+		});
+
+		it('invokes size function when _size is not set', () => {
+			const sizeFn = jest.fn(() => 24);
+			const axis: Axis = { size: sizeFn };
+			const instance = ({} as unknown) as uPlot;
+
+			const result = getExistingAxisSize({
+				uplotInstance: instance,
+				axis,
+				values: ['10', '20'],
+				axisIdx: 1,
+				cycleNum: 2,
+			});
+
+			expect(sizeFn).toHaveBeenCalledWith(instance, ['10', '20'], 1, 2);
+			expect(result).toBe(24);
+		});
+
+		it('returns numeric size or 0 when neither _size nor size are provided', () => {
+			const axisWithSize: Axis = { size: 16 };
+			const axisWithoutSize: Axis = {};
+			const instance = ({} as unknown) as uPlot;
+
+			expect(
+				getExistingAxisSize({
+					uplotInstance: instance,
+					axis: axisWithSize,
+					axisIdx: 0,
+					cycleNum: 0,
+				}),
+			).toBe(16);
+
+			expect(
+				getExistingAxisSize({
+					uplotInstance: instance,
+					axis: axisWithoutSize,
+					axisIdx: 0,
+					cycleNum: 0,
+				}),
+			).toBe(0);
+		});
+	});
+
+	describe('buildYAxisSizeCalculator', () => {
+		it('delegates to getExistingAxisSize when cycleNum > 1', () => {
+			const sizeCalculator = buildYAxisSizeCalculator(5);
+
+			const axis: any = {
+				_size: 80,
+				ticks: { size: 10 },
+				font: ['12px sans-serif'],
+			};
+
+			const measureText = jest.fn(() => ({ width: 60 }));
+			const self = ({
+				axes: [axis],
+				ctx: {
+					font: '',
+					measureText,
+				},
+			} as unknown) as uPlot;
+
+			if (typeof sizeCalculator === 'number') {
+				throw new Error('Size calculator is a number');
+			}
+
+			const result = sizeCalculator(self, ['10', '20'], 0, 2);
+
+			expect(result).toBe(80);
+			expect(measureText).not.toHaveBeenCalled();
+		});
+
+		it('computes size from ticks, gap and text width when cycleNum <= 1', () => {
+			const gap = 7;
+			const sizeCalculator = buildYAxisSizeCalculator(gap);
+
+			const axis: Axis = {
+				ticks: { size: 12 },
+				font: (['12px sans-serif'] as unknown) as string,
+			};
+
+			const measureText = jest.fn(() => ({ width: 50 }));
+			const self = ({
+				axes: [axis],
+				ctx: {
+					font: '',
+					measureText,
+				},
+			} as unknown) as uPlot;
+
+			const dpr =
+				((global as unknown) as { devicePixelRatio?: number }).devicePixelRatio ??
+				1;
+			const expected = Math.ceil(12 + gap + 50 / dpr);
+
+			if (typeof sizeCalculator === 'number') {
+				throw new Error('Size calculator is a number');
+			}
+
+			const result = sizeCalculator(self, ['short', 'the-longest'], 0, 0);
+			expect(measureText).toHaveBeenCalledWith('the-longest');
+			expect(result).toBe(expected);
+		});
+
+		it('uses 0 ticks size when ticks are not defined', () => {
+			const gap = 4;
+			const sizeCalculator = buildYAxisSizeCalculator(gap);
+
+			const axis: Axis = {
+				font: (['12px sans-serif'] as unknown) as string,
+			};
+
+			const measureText = jest.fn(() => ({ width: 40 }));
+			const self = ({
+				axes: [axis],
+				ctx: {
+					font: '',
+					measureText,
+				},
+			} as unknown) as uPlot;
+
+			const dpr =
+				((global as unknown) as { devicePixelRatio?: number }).devicePixelRatio ??
+				1;
+			const expected = Math.ceil(gap + 40 / dpr);
+
+			if (typeof sizeCalculator === 'number') {
+				throw new Error('Size calculator is a number');
+			}
+
+			const result = sizeCalculator(self, ['1', '123'], 0, 1);
+
+			expect(result).toBe(expected);
+		});
+	});
+});

frontend/src/lib/uPlotV2/utils/axis.ts

@@ -0,0 +1,80 @@
+import { Axis } from 'uplot';
+
+/**
+ * Calculate text width for longest value
+ */
+export function calculateTextWidth(
+	self: uPlot,
+	axis: Axis,
+	values: string[] | undefined,
+): number {
+	if (!values || values.length === 0) {
+		return 0;
+	}
+
+	// Find longest value
+	const longestVal = values.reduce(
+		(acc, val) => (val.length > acc.length ? val : acc),
+		'',
+	);
+
+	if (longestVal === '' || !axis.font?.[0]) {
+		return 0;
+	}
+
+	self.ctx.font = axis.font[0];
+	return self.ctx.measureText(longestVal).width / devicePixelRatio;
+}
+
+export function getExistingAxisSize({
+	uplotInstance,
+	axis,
+	values,
+	axisIdx,
+	cycleNum,
+}: {
+	uplotInstance: uPlot;
+	axis: Axis;
+	values?: string[];
+	axisIdx: number;
+	cycleNum: number;
+}): number {
+	const internalSize = (axis as { _size?: number })._size;
+	if (internalSize !== undefined) {
+		return internalSize;
+	}
+
+	const existingSize = axis.size;
+	if (typeof existingSize === 'function') {
+		return existingSize(uplotInstance, values ?? [], axisIdx, cycleNum);
+	}
+
+	return existingSize ?? 0;
+}
+
+export function buildYAxisSizeCalculator(gap: number): uPlot.Axis.Size {
+	return (
+		self: uPlot,
+		values: string[] | undefined,
+		axisIdx: number,
+		cycleNum: number,
+	): number => {
+		const axis = self.axes[axisIdx];
+
+		// Bail out, force convergence
+		if (cycleNum > 1) {
+			return getExistingAxisSize({
+				uplotInstance: self,
+				axis,
+				values,
+				axisIdx,
+				cycleNum,
+			});
+		}
+
+		let axisSize = (axis.ticks?.size ?? 0) + gap;
+		axisSize += calculateTextWidth(self, axis, values);
+
+		return Math.ceil(axisSize);
+	};
+}

frontend/src/lib/uPlotV2/utils/seriesVisibility.ts

@@ -1,11 +1,44 @@
-export function resolveSeriesVisibility(
-	label: string,
-	seriesShow: boolean | undefined | null,
-	visibilityMap: Map<string, boolean> | null,
-	isAnySeriesHidden: boolean,
-): boolean {
-	if (isAnySeriesHidden) {
-		return visibilityMap?.get(label) ?? false;
+/**
+ * Resolve the visibility of a single series based on:
+ * - Stored per-series visibility (when applicable)
+ * - Whether there is an "active preference" (mix of visible/hidden that matches current series)
+ * - The series' own default show flag
+ */
+export function resolveSeriesVisibility({
+	seriesShow,
+	seriesLabel,
+	visibleStoredLabels,
+	hiddenStoredLabels,
+	hasActivePreference,
+}: {
+	seriesShow: boolean | undefined | null;
+	seriesLabel: string;
+	visibleStoredLabels: Set<string> | null;
+	hiddenStoredLabels: Set<string> | null;
+	hasActivePreference: boolean;
+}): boolean {
+	const isStoredVisible = !!visibleStoredLabels?.has(seriesLabel);
+	const isStoredHidden = !!hiddenStoredLabels?.has(seriesLabel);
+
+	// If the label is explicitly stored as visible, always show it.
+	if (isStoredVisible) {
+		return true;
 	}
+
+	// If the label is explicitly stored as hidden (and never stored as visible),
+	// always hide it.
+	if (isStoredHidden) {
+		return false;
+	}
+
+	// "Active preference" means:
+	// - There is a mix of visible/hidden in storage, AND
+	// - At least one stored *visible* label exists in the current series list.
+	// For such a preference, any new/unknown series should be hidden by default.
+	if (hasActivePreference) {
+		return false;
+	}
+
+	// Otherwise fall back to the series' own config or show by default.
 	return seriesShow ?? true;
 }

frontend/src/providers/Dashboard/Dashboard.tsx

@@ -84,8 +84,6 @@ const DashboardContext = createContext<IDashboardContext>({
 	toScrollWidgetId: '',
 	setToScrollWidgetId: () => {},
 	updateLocalStorageDashboardVariables: () => {},
-	variablesToGetUpdated: [],
-	setVariablesToGetUpdated: () => {},
 	dashboardQueryRangeCalled: false,
 	setDashboardQueryRangeCalled: () => {},
 	selectedRowWidgetId: '',
@@ -183,10 +181,6 @@ export function DashboardProvider({
 		exact: true,
 	});
 
-	const [variablesToGetUpdated, setVariablesToGetUpdated] = useState<string[]>(
-		[],
-	);
-
 	const [layouts, setLayouts] = useState<Layout[]>([]);
 
 	const [panelMap, setPanelMap] = useState<
@@ -517,8 +511,6 @@ export function DashboardProvider({
 			updatedTimeRef,
 			setToScrollWidgetId,
 			updateLocalStorageDashboardVariables,
-			variablesToGetUpdated,
-			setVariablesToGetUpdated,
 			dashboardQueryRangeCalled,
 			setDashboardQueryRangeCalled,
 			selectedRowWidgetId,
@@ -541,8 +533,6 @@ export function DashboardProvider({
 			toScrollWidgetId,
 			updateLocalStorageDashboardVariables,
 			currentDashboard,
-			variablesToGetUpdated,
-			setVariablesToGetUpdated,
 			dashboardQueryRangeCalled,
 			setDashboardQueryRangeCalled,
 			selectedRowWidgetId,

frontend/src/providers/Dashboard/store/__tests__/variableFetchStore.test.ts

@@ -0,0 +1,527 @@
+import * as dashboardVariablesStore from '../dashboardVariables/dashboardVariablesStore';
+import { IDependencyData } from '../dashboardVariables/dashboardVariablesStoreTypes';
+import {
+	enqueueDescendantsOfVariable,
+	enqueueFetchOfAllVariables,
+	initializeVariableFetchStore,
+	onVariableFetchComplete,
+	onVariableFetchFailure,
+	VariableFetchContext,
+	variableFetchStore,
+} from '../variableFetchStore';
+
+const getVariableDependencyContextSpy = jest.spyOn(
+	dashboardVariablesStore,
+	'getVariableDependencyContext',
+);
+
+function resetStore(): void {
+	variableFetchStore.set(() => ({
+		states: {},
+		lastUpdated: {},
+		cycleIds: {},
+	}));
+}
+
+function mockContext(overrides: Partial<VariableFetchContext> = {}): void {
+	getVariableDependencyContextSpy.mockReturnValue({
+		doAllVariablesHaveValuesSelected: false,
+		variableTypes: {},
+		dynamicVariableOrder: [],
+		dependencyData: null,
+		...overrides,
+	});
+}
+
+/**
+ * Helper to build a dependency data object for tests.
+ * Only the fields used by the store actions are required.
+ */
+function buildDependencyData(
+	overrides: Partial<IDependencyData> = {},
+): IDependencyData {
+	return {
+		order: [],
+		graph: {},
+		parentDependencyGraph: {},
+		transitiveDescendants: {},
+		hasCycle: false,
+		...overrides,
+	};
+}
+
+describe('variableFetchStore', () => {
+	beforeEach(() => {
+		resetStore();
+		jest.clearAllMocks();
+	});
+
+	// ==================== initializeVariableFetchStore ====================
+
+	describe('initializeVariableFetchStore', () => {
+		it('should initialize new variables to idle', () => {
+			initializeVariableFetchStore(['a', 'b', 'c']);
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states).toEqual({ a: 'idle', b: 'idle', c: 'idle' });
+		});
+
+		it('should preserve existing states for known variables', () => {
+			// Pre-set a state
+			variableFetchStore.update((d) => {
+				d.states.a = 'loading';
+			});
+
+			initializeVariableFetchStore(['a', 'b']);
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.a).toBe('loading');
+			expect(storeSnapshot.states.b).toBe('idle');
+		});
+
+		it('should clean up stale variables that no longer exist', () => {
+			variableFetchStore.update((d) => {
+				d.states.old = 'idle';
+				d.lastUpdated.old = 100;
+				d.cycleIds.old = 3;
+			});
+
+			initializeVariableFetchStore(['a']);
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.old).toBeUndefined();
+			expect(storeSnapshot.lastUpdated.old).toBeUndefined();
+			expect(storeSnapshot.cycleIds.old).toBeUndefined();
+			expect(storeSnapshot.states.a).toBe('idle');
+		});
+
+		it('should handle empty variable names array', () => {
+			variableFetchStore.update((d) => {
+				d.states.a = 'idle';
+			});
+
+			initializeVariableFetchStore([]);
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states).toEqual({});
+		});
+	});
+
+	// ==================== enqueueFetchOfAllVariables ====================
+
+	describe('enqueueFetchOfAllVariables', () => {
+		it('should no-op when dependencyData is null', () => {
+			mockContext({ dependencyData: null });
+
+			initializeVariableFetchStore(['a']);
+			enqueueFetchOfAllVariables();
+
+			expect(variableFetchStore.getSnapshot().states.a).toBe('idle');
+		});
+
+		it('should set root query variables to loading and dependent ones to waiting', () => {
+			// a is root (no parents), b depends on a
+			mockContext({
+				dependencyData: buildDependencyData({
+					order: ['a', 'b'],
+					parentDependencyGraph: { a: [], b: ['a'] },
+				}),
+				variableTypes: { a: 'QUERY', b: 'QUERY' },
+			});
+
+			initializeVariableFetchStore(['a', 'b']);
+			enqueueFetchOfAllVariables();
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.a).toBe('loading');
+			expect(storeSnapshot.states.b).toBe('waiting');
+		});
+
+		it('should set root query variables to revalidating when previously fetched', () => {
+			mockContext({
+				dependencyData: buildDependencyData({
+					order: ['a'],
+					parentDependencyGraph: { a: [] },
+				}),
+				variableTypes: { a: 'QUERY' },
+			});
+
+			// Pre-set lastUpdated so it appears previously fetched
+			variableFetchStore.update((d) => {
+				d.lastUpdated.a = 1000;
+			});
+
+			initializeVariableFetchStore(['a']);
+			enqueueFetchOfAllVariables();
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.a).toBe('revalidating');
+		});
+
+		it('should bump cycle IDs for all enqueued variables', () => {
+			mockContext({
+				dependencyData: buildDependencyData({
+					order: ['a', 'b'],
+					parentDependencyGraph: { a: [], b: ['a'] },
+				}),
+				variableTypes: { a: 'QUERY', b: 'QUERY' },
+			});
+
+			initializeVariableFetchStore(['a', 'b']);
+			enqueueFetchOfAllVariables();
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.cycleIds.a).toBe(1);
+			expect(storeSnapshot.cycleIds.b).toBe(1);
+		});
+
+		it('should set dynamic variables to waiting when not all variables have values', () => {
+			mockContext({
+				doAllVariablesHaveValuesSelected: false,
+				dependencyData: buildDependencyData({ order: [] }),
+				variableTypes: { dyn1: 'DYNAMIC' },
+				dynamicVariableOrder: ['dyn1'],
+			});
+
+			initializeVariableFetchStore(['dyn1']);
+			enqueueFetchOfAllVariables();
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.dyn1).toBe('waiting');
+		});
+
+		it('should set dynamic variables to loading when all variables have values', () => {
+			mockContext({
+				doAllVariablesHaveValuesSelected: true,
+				dependencyData: buildDependencyData({ order: [] }),
+				variableTypes: { dyn1: 'DYNAMIC' },
+				dynamicVariableOrder: ['dyn1'],
+			});
+
+			initializeVariableFetchStore(['dyn1']);
+			enqueueFetchOfAllVariables();
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.dyn1).toBe('loading');
+		});
+
+		it('should not treat non-QUERY parents as query parents', () => {
+			// b has a CUSTOM parent — shouldn't cause waiting
+			mockContext({
+				dependencyData: buildDependencyData({
+					order: ['b'],
+					parentDependencyGraph: { b: ['customVar'] },
+				}),
+				variableTypes: { b: 'QUERY', customVar: 'CUSTOM' },
+			});
+
+			initializeVariableFetchStore(['b', 'customVar']);
+			enqueueFetchOfAllVariables();
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.b).toBe('loading');
+		});
+	});
+
+	// ==================== onVariableFetchComplete ====================
+
+	describe('onVariableFetchComplete', () => {
+		it('should set the completed variable to idle with a lastUpdated timestamp', () => {
+			mockContext();
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'loading';
+			});
+
+			const before = Date.now();
+			onVariableFetchComplete('a');
+			const after = Date.now();
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.a).toBe('idle');
+			expect(storeSnapshot.lastUpdated.a).toBeGreaterThanOrEqual(before);
+			expect(storeSnapshot.lastUpdated.a).toBeLessThanOrEqual(after);
+		});
+
+		it('should unblock waiting query-type children', () => {
+			mockContext({
+				dependencyData: buildDependencyData({
+					graph: { a: ['b'] },
+				}),
+				variableTypes: { a: 'QUERY', b: 'QUERY' },
+			});
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'loading';
+				d.states.b = 'waiting';
+			});
+
+			onVariableFetchComplete('a');
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.a).toBe('idle');
+			expect(storeSnapshot.states.b).toBe('loading');
+		});
+
+		it('should not unblock non-QUERY children', () => {
+			mockContext({
+				dependencyData: buildDependencyData({
+					graph: { a: ['dyn1'] },
+				}),
+				variableTypes: { a: 'QUERY', dyn1: 'DYNAMIC' },
+			});
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'loading';
+				d.states.dyn1 = 'waiting';
+			});
+
+			onVariableFetchComplete('a');
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			// dyn1 is DYNAMIC, not QUERY, so it should remain waiting
+			expect(storeSnapshot.states.dyn1).toBe('waiting');
+		});
+
+		it('should unlock waiting dynamic variables when all query variables are settled', () => {
+			mockContext({
+				dependencyData: buildDependencyData({
+					graph: { a: [] },
+				}),
+				variableTypes: { a: 'QUERY', dyn1: 'DYNAMIC' },
+				dynamicVariableOrder: ['dyn1'],
+			});
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'loading';
+				d.states.dyn1 = 'waiting';
+			});
+
+			onVariableFetchComplete('a');
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.dyn1).toBe('loading');
+		});
+
+		it('should NOT unlock dynamic variables if a query variable is still in-flight', () => {
+			mockContext({
+				dependencyData: buildDependencyData({
+					graph: { a: ['b'] },
+				}),
+				variableTypes: { a: 'QUERY', b: 'QUERY', dyn1: 'DYNAMIC' },
+				dynamicVariableOrder: ['dyn1'],
+			});
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'loading';
+				d.states.b = 'waiting';
+				d.states.dyn1 = 'waiting';
+			});
+
+			onVariableFetchComplete('a');
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.dyn1).toBe('waiting');
+		});
+	});
+
+	// ==================== onVariableFetchFailure ====================
+
+	describe('onVariableFetchFailure', () => {
+		it('should set the failed variable to error', () => {
+			mockContext();
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'loading';
+			});
+
+			onVariableFetchFailure('a');
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.a).toBe('error');
+		});
+
+		it('should set query-type transitive descendants to idle', () => {
+			mockContext({
+				dependencyData: buildDependencyData({
+					transitiveDescendants: { a: ['b', 'c'] },
+				}),
+				variableTypes: { a: 'QUERY', b: 'QUERY', c: 'QUERY' },
+			});
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'loading';
+				d.states.b = 'waiting';
+				d.states.c = 'waiting';
+			});
+
+			onVariableFetchFailure('a');
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.a).toBe('error');
+			expect(storeSnapshot.states.b).toBe('idle');
+			expect(storeSnapshot.states.c).toBe('idle');
+		});
+
+		it('should not touch non-QUERY descendants', () => {
+			mockContext({
+				dependencyData: buildDependencyData({
+					transitiveDescendants: { a: ['dyn1'] },
+				}),
+				variableTypes: { a: 'QUERY', dyn1: 'DYNAMIC' },
+			});
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'loading';
+				d.states.dyn1 = 'waiting';
+			});
+
+			onVariableFetchFailure('a');
+
+			expect(variableFetchStore.getSnapshot().states.dyn1).toBe('waiting');
+		});
+
+		it('should unlock waiting dynamic variables when all query variables settle via error', () => {
+			mockContext({
+				dependencyData: buildDependencyData({
+					transitiveDescendants: {},
+				}),
+				variableTypes: { a: 'QUERY', dyn1: 'DYNAMIC' },
+				dynamicVariableOrder: ['dyn1'],
+			});
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'loading';
+				d.states.dyn1 = 'waiting';
+			});
+
+			onVariableFetchFailure('a');
+
+			expect(variableFetchStore.getSnapshot().states.dyn1).toBe('loading');
+		});
+	});
+
+	// ==================== enqueueDescendantsOfVariable ====================
+
+	describe('enqueueDescendantsOfVariable', () => {
+		it('should no-op when dependencyData is null', () => {
+			mockContext({ dependencyData: null });
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'idle';
+				d.states.b = 'idle';
+			});
+
+			enqueueDescendantsOfVariable('a');
+
+			expect(variableFetchStore.getSnapshot().states.b).toBe('idle');
+		});
+
+		it('should enqueue query-type descendants with all parents settled', () => {
+			mockContext({
+				dependencyData: buildDependencyData({
+					transitiveDescendants: { a: ['b'] },
+					parentDependencyGraph: { b: ['a'] },
+				}),
+				variableTypes: { a: 'QUERY', b: 'QUERY' },
+			});
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'idle';
+				d.states.b = 'idle';
+			});
+
+			enqueueDescendantsOfVariable('a');
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			expect(storeSnapshot.states.b).toBe('loading');
+			expect(storeSnapshot.cycleIds.b).toBe(1);
+		});
+
+		it('should set descendants to waiting when some parents are not settled', () => {
+			// b depends on both a and c; c is still loading
+			mockContext({
+				dependencyData: buildDependencyData({
+					transitiveDescendants: { a: ['b'] },
+					parentDependencyGraph: { b: ['a', 'c'] },
+				}),
+				variableTypes: { a: 'QUERY', b: 'QUERY', c: 'QUERY' },
+			});
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'idle';
+				d.states.b = 'idle';
+				d.states.c = 'loading';
+			});
+
+			enqueueDescendantsOfVariable('a');
+
+			expect(variableFetchStore.getSnapshot().states.b).toBe('waiting');
+		});
+
+		it('should skip non-QUERY descendants', () => {
+			mockContext({
+				dependencyData: buildDependencyData({
+					transitiveDescendants: { a: ['dyn1'] },
+					parentDependencyGraph: {},
+				}),
+				variableTypes: { a: 'QUERY', dyn1: 'DYNAMIC' },
+			});
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'idle';
+				d.states.dyn1 = 'idle';
+			});
+
+			enqueueDescendantsOfVariable('a');
+
+			// dyn1 is DYNAMIC, so it should not be touched
+			expect(variableFetchStore.getSnapshot().states.dyn1).toBe('idle');
+		});
+
+		it('should handle chain of descendants: a -> b -> c', () => {
+			// a -> b -> c, all QUERY
+			mockContext({
+				dependencyData: buildDependencyData({
+					transitiveDescendants: { a: ['b', 'c'] },
+					parentDependencyGraph: { b: ['a'], c: ['b'] },
+				}),
+				variableTypes: { a: 'QUERY', b: 'QUERY', c: 'QUERY' },
+			});
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'idle';
+				d.states.b = 'idle';
+				d.states.c = 'idle';
+			});
+
+			enqueueDescendantsOfVariable('a');
+
+			const storeSnapshot = variableFetchStore.getSnapshot();
+			// b's parent (a) is idle/settled → loading
+			expect(storeSnapshot.states.b).toBe('loading');
+			// c's parent (b) just moved to loading (not settled) → waiting
+			expect(storeSnapshot.states.c).toBe('waiting');
+		});
+
+		it('should set descendants to revalidating when previously fetched', () => {
+			mockContext({
+				dependencyData: buildDependencyData({
+					transitiveDescendants: { a: ['b'] },
+					parentDependencyGraph: { b: ['a'] },
+				}),
+				variableTypes: { a: 'QUERY', b: 'QUERY' },
+			});
+
+			variableFetchStore.update((d) => {
+				d.states.a = 'idle';
+				d.states.b = 'idle';
+				d.lastUpdated.b = 1000;
+			});
+
+			enqueueDescendantsOfVariable('a');
+
+			expect(variableFetchStore.getSnapshot().states.b).toBe('revalidating');
+		});
+	});
+});

frontend/src/providers/Dashboard/store/__tests__/variableFetchStoreUtils.test.ts

@@ -0,0 +1,196 @@
+import {
+	IVariableFetchStoreState,
+	VariableFetchState,
+} from '../variableFetchStore';
+import {
+	areAllQueryVariablesSettled,
+	isSettled,
+	resolveFetchState,
+	unlockWaitingDynamicVariables,
+} from '../variableFetchStoreUtils';
+
+describe('variableFetchStoreUtils', () => {
+	describe('isSettled', () => {
+		it('should return true for idle state', () => {
+			expect(isSettled('idle')).toBe(true);
+		});
+
+		it('should return true for error state', () => {
+			expect(isSettled('error')).toBe(true);
+		});
+
+		it('should return false for loading state', () => {
+			expect(isSettled('loading')).toBe(false);
+		});
+
+		it('should return false for revalidating state', () => {
+			expect(isSettled('revalidating')).toBe(false);
+		});
+
+		it('should return false for waiting state', () => {
+			expect(isSettled('waiting')).toBe(false);
+		});
+
+		it('should return false for undefined', () => {
+			expect(isSettled(undefined)).toBe(false);
+		});
+	});
+
+	describe('resolveFetchState', () => {
+		it('should return "loading" when variable has never been fetched', () => {
+			const draft: IVariableFetchStoreState = {
+				states: {},
+				lastUpdated: {},
+				cycleIds: {},
+			};
+
+			expect(resolveFetchState(draft, 'myVar')).toBe('loading');
+		});
+
+		it('should return "loading" when lastUpdated is 0', () => {
+			const draft: IVariableFetchStoreState = {
+				states: {},
+				lastUpdated: { myVar: 0 },
+				cycleIds: {},
+			};
+
+			expect(resolveFetchState(draft, 'myVar')).toBe('loading');
+		});
+
+		it('should return "revalidating" when variable has been fetched before', () => {
+			const draft: IVariableFetchStoreState = {
+				states: {},
+				lastUpdated: { myVar: 1000 },
+				cycleIds: {},
+			};
+
+			expect(resolveFetchState(draft, 'myVar')).toBe('revalidating');
+		});
+	});
+
+	describe('areAllQueryVariablesSettled', () => {
+		it('should return true when all query variables are idle', () => {
+			const states: Record<string, VariableFetchState> = {
+				a: 'idle',
+				b: 'idle',
+			};
+			const variableTypes = { a: 'QUERY' as const, b: 'QUERY' as const };
+
+			expect(areAllQueryVariablesSettled(states, variableTypes)).toBe(true);
+		});
+
+		it('should return true when all query variables are in error', () => {
+			const states: Record<string, VariableFetchState> = {
+				a: 'error',
+				b: 'error',
+			};
+			const variableTypes = { a: 'QUERY' as const, b: 'QUERY' as const };
+
+			expect(areAllQueryVariablesSettled(states, variableTypes)).toBe(true);
+		});
+
+		it('should return true with a mix of idle and error query variables', () => {
+			const states: Record<string, VariableFetchState> = {
+				a: 'idle',
+				b: 'error',
+			};
+			const variableTypes = { a: 'QUERY' as const, b: 'QUERY' as const };
+
+			expect(areAllQueryVariablesSettled(states, variableTypes)).toBe(true);
+		});
+
+		it('should return false when any query variable is loading', () => {
+			const states: Record<string, VariableFetchState> = {
+				a: 'idle',
+				b: 'loading',
+			};
+			const variableTypes = { a: 'QUERY' as const, b: 'QUERY' as const };
+
+			expect(areAllQueryVariablesSettled(states, variableTypes)).toBe(false);
+		});
+
+		it('should return false when any query variable is waiting', () => {
+			const states: Record<string, VariableFetchState> = {
+				a: 'idle',
+				b: 'waiting',
+			};
+			const variableTypes = { a: 'QUERY' as const, b: 'QUERY' as const };
+
+			expect(areAllQueryVariablesSettled(states, variableTypes)).toBe(false);
+		});
+
+		it('should ignore non-QUERY variable types', () => {
+			const states: Record<string, VariableFetchState> = {
+				a: 'idle',
+				dynVar: 'loading',
+			};
+			const variableTypes = {
+				a: 'QUERY' as const,
+				dynVar: 'DYNAMIC' as const,
+			};
+
+			expect(areAllQueryVariablesSettled(states, variableTypes)).toBe(true);
+		});
+
+		it('should return true when there are no QUERY variables', () => {
+			const states: Record<string, VariableFetchState> = {
+				dynVar: 'loading',
+			};
+			const variableTypes = { dynVar: 'DYNAMIC' as const };
+
+			expect(areAllQueryVariablesSettled(states, variableTypes)).toBe(true);
+		});
+	});
+
+	describe('unlockWaitingDynamicVariables', () => {
+		it('should transition waiting dynamic variables to loading when never fetched', () => {
+			const draft: IVariableFetchStoreState = {
+				states: { dyn1: 'waiting', dyn2: 'waiting' },
+				lastUpdated: {},
+				cycleIds: {},
+			};
+
+			unlockWaitingDynamicVariables(draft, ['dyn1', 'dyn2']);
+
+			expect(draft.states.dyn1).toBe('loading');
+			expect(draft.states.dyn2).toBe('loading');
+		});
+
+		it('should transition waiting dynamic variables to revalidating when previously fetched', () => {
+			const draft: IVariableFetchStoreState = {
+				states: { dyn1: 'waiting' },
+				lastUpdated: { dyn1: 1000 },
+				cycleIds: {},
+			};
+
+			unlockWaitingDynamicVariables(draft, ['dyn1']);
+
+			expect(draft.states.dyn1).toBe('revalidating');
+		});
+
+		it('should not touch dynamic variables that are not in waiting state', () => {
+			const draft: IVariableFetchStoreState = {
+				states: { dyn1: 'idle', dyn2: 'loading' },
+				lastUpdated: {},
+				cycleIds: {},
+			};
+
+			unlockWaitingDynamicVariables(draft, ['dyn1', 'dyn2']);
+
+			expect(draft.states.dyn1).toBe('idle');
+			expect(draft.states.dyn2).toBe('loading');
+		});
+
+		it('should handle empty dynamic variable order', () => {
+			const draft: IVariableFetchStoreState = {
+				states: { dyn1: 'waiting' },
+				lastUpdated: {},
+				cycleIds: {},
+			};
+
+			unlockWaitingDynamicVariables(draft, []);
+
+			expect(draft.states.dyn1).toBe('waiting');
+		});
+	});
+});

frontend/src/providers/Dashboard/store/dashboardVariables/__tests__/dashboardVariablesStore.test.ts

@@ -0,0 +1,297 @@
+import { IDashboardVariable } from 'types/api/dashboard/getAll';
+
+import {
+	dashboardVariablesStore,
+	getVariableDependencyContext,
+	setDashboardVariablesStore,
+	updateDashboardVariablesStore,
+} from '../dashboardVariablesStore';
+import { IDashboardVariables } from '../dashboardVariablesStoreTypes';
+
+function createVariable(
+	overrides: Partial<IDashboardVariable> = {},
+): IDashboardVariable {
+	return {
+		id: 'test-id',
+		name: 'test-var',
+		description: '',
+		type: 'QUERY',
+		sort: 'DISABLED',
+		showALLOption: false,
+		multiSelect: false,
+		order: 0,
+		...overrides,
+	};
+}
+
+function resetStore(): void {
+	dashboardVariablesStore.set(() => ({
+		dashboardId: '',
+		variables: {},
+		sortedVariablesArray: [],
+		dependencyData: null,
+		variableTypes: {},
+		dynamicVariableOrder: [],
+	}));
+}
+
+describe('dashboardVariablesStore', () => {
+	beforeEach(() => {
+		resetStore();
+	});
+
+	describe('setDashboardVariablesStore', () => {
+		it('should set the dashboard variables and compute derived values', () => {
+			const variables: IDashboardVariables = {
+				env: createVariable({ name: 'env', type: 'QUERY', order: 0 }),
+			};
+
+			setDashboardVariablesStore({ dashboardId: 'dash-1', variables });
+
+			const storeSnapshot = dashboardVariablesStore.getSnapshot();
+			expect(storeSnapshot.dashboardId).toBe('dash-1');
+			expect(storeSnapshot.variables).toEqual(variables);
+			expect(storeSnapshot.variableTypes).toEqual({ env: 'QUERY' });
+			expect(storeSnapshot.sortedVariablesArray).toHaveLength(1);
+		});
+	});
+
+	describe('updateDashboardVariablesStore', () => {
+		it('should update variables and recompute derived values', () => {
+			setDashboardVariablesStore({
+				dashboardId: 'dash-1',
+				variables: {
+					env: createVariable({ name: 'env', type: 'QUERY', order: 0 }),
+				},
+			});
+
+			const updatedVariables: IDashboardVariables = {
+				env: createVariable({ name: 'env', type: 'QUERY', order: 0 }),
+				dyn1: createVariable({ name: 'dyn1', type: 'DYNAMIC', order: 1 }),
+			};
+
+			updateDashboardVariablesStore({
+				dashboardId: 'dash-1',
+				variables: updatedVariables,
+			});
+
+			const storeSnapshot = dashboardVariablesStore.getSnapshot();
+			expect(storeSnapshot.variableTypes).toEqual({
+				env: 'QUERY',
+				dyn1: 'DYNAMIC',
+			});
+			expect(storeSnapshot.dynamicVariableOrder).toEqual(['dyn1']);
+		});
+
+		it('should replace dashboardId when it does not match', () => {
+			setDashboardVariablesStore({
+				dashboardId: 'dash-1',
+				variables: {
+					'not-there': createVariable({ name: 'not-there', order: 0 }),
+				},
+			});
+
+			updateDashboardVariablesStore({
+				dashboardId: 'dash-2',
+				variables: {
+					a: createVariable({ name: 'a', order: 0 }),
+				},
+			});
+
+			const storeSnapshot = dashboardVariablesStore.getSnapshot();
+			expect(storeSnapshot.dashboardId).toBe('dash-2');
+			expect(storeSnapshot.variableTypes).toEqual({
+				a: 'QUERY',
+			});
+			expect(storeSnapshot.variableTypes).not.toEqual({
+				'not-there': 'QUERY',
+			});
+		});
+	});
+
+	describe('getVariableDependencyContext', () => {
+		it('should return context with all fields', () => {
+			setDashboardVariablesStore({
+				dashboardId: 'dash-1',
+				variables: {
+					env: createVariable({
+						name: 'env',
+						type: 'QUERY',
+						order: 0,
+						selectedValue: 'prod',
+					}),
+				},
+			});
+
+			const {
+				variableTypes,
+				dynamicVariableOrder,
+				dependencyData,
+			} = getVariableDependencyContext();
+
+			expect(variableTypes).toEqual({ env: 'QUERY' });
+			expect(dynamicVariableOrder).toEqual([]);
+			expect(dependencyData).not.toBeNull();
+		});
+
+		it('should report doAllVariablesHaveValuesSelected as true when all variables have selectedValue', () => {
+			setDashboardVariablesStore({
+				dashboardId: 'dash-1',
+				variables: {
+					env: createVariable({
+						name: 'env',
+						type: 'QUERY',
+						order: 0,
+						selectedValue: 'prod',
+					}),
+					region: createVariable({
+						name: 'region',
+						type: 'CUSTOM',
+						order: 1,
+						selectedValue: 'us-east',
+					}),
+				},
+			});
+
+			const { doAllVariablesHaveValuesSelected } = getVariableDependencyContext();
+			expect(doAllVariablesHaveValuesSelected).toBe(true);
+		});
+
+		it('should report doAllVariablesHaveValuesSelected as false when some variables lack selectedValue', () => {
+			setDashboardVariablesStore({
+				dashboardId: 'dash-1',
+				variables: {
+					env: createVariable({
+						name: 'env',
+						type: 'QUERY',
+						order: 0,
+						selectedValue: 'prod',
+					}),
+					region: createVariable({
+						name: 'region',
+						type: 'CUSTOM',
+						order: 1,
+						selectedValue: undefined,
+					}),
+				},
+			});
+
+			const { doAllVariablesHaveValuesSelected } = getVariableDependencyContext();
+			expect(doAllVariablesHaveValuesSelected).toBe(false);
+		});
+
+		it('should treat DYNAMIC variable with allSelected=true and selectedValue=null as having a value', () => {
+			setDashboardVariablesStore({
+				dashboardId: 'dash-1',
+				variables: {
+					dyn1: createVariable({
+						name: 'dyn1',
+						type: 'DYNAMIC',
+						order: 0,
+						selectedValue: null as any,
+						allSelected: true,
+					}),
+					env: createVariable({
+						name: 'env',
+						type: 'QUERY',
+						order: 1,
+						selectedValue: 'prod',
+					}),
+				},
+			});
+
+			const { doAllVariablesHaveValuesSelected } = getVariableDependencyContext();
+			expect(doAllVariablesHaveValuesSelected).toBe(true);
+		});
+
+		it('should treat DYNAMIC variable with allSelected=true and selectedValue=undefined as having a value', () => {
+			setDashboardVariablesStore({
+				dashboardId: 'dash-1',
+				variables: {
+					dyn1: createVariable({
+						name: 'dyn1',
+						type: 'DYNAMIC',
+						order: 0,
+						selectedValue: undefined,
+						allSelected: true,
+					}),
+					env: createVariable({
+						name: 'env',
+						type: 'QUERY',
+						order: 1,
+						selectedValue: 'prod',
+					}),
+				},
+			});
+
+			const { doAllVariablesHaveValuesSelected } = getVariableDependencyContext();
+			expect(doAllVariablesHaveValuesSelected).toBe(true);
+		});
+
+		it('should treat DYNAMIC variable with allSelected=true and empty string selectedValue as having a value', () => {
+			setDashboardVariablesStore({
+				dashboardId: 'dash-1',
+				variables: {
+					dyn1: createVariable({
+						name: 'dyn1',
+						type: 'DYNAMIC',
+						order: 0,
+						selectedValue: '',
+						allSelected: true,
+					}),
+					env: createVariable({
+						name: 'env',
+						type: 'QUERY',
+						order: 1,
+						selectedValue: 'prod',
+					}),
+				},
+			});
+
+			const { doAllVariablesHaveValuesSelected } = getVariableDependencyContext();
+			expect(doAllVariablesHaveValuesSelected).toBe(true);
+		});
+
+		it('should treat DYNAMIC variable with allSelected=true and empty array selectedValue as having a value', () => {
+			setDashboardVariablesStore({
+				dashboardId: 'dash-1',
+				variables: {
+					dyn1: createVariable({
+						name: 'dyn1',
+						type: 'DYNAMIC',
+						order: 0,
+						selectedValue: [] as any,
+						allSelected: true,
+					}),
+					env: createVariable({
+						name: 'env',
+						type: 'QUERY',
+						order: 1,
+						selectedValue: 'prod',
+					}),
+				},
+			});
+
+			const { doAllVariablesHaveValuesSelected } = getVariableDependencyContext();
+			expect(doAllVariablesHaveValuesSelected).toBe(true);
+		});
+
+		it('should report false when a DYNAMIC variable has empty selectedValue and allSelected is not true', () => {
+			setDashboardVariablesStore({
+				dashboardId: 'dash-1',
+				variables: {
+					dyn1: createVariable({
+						name: 'dyn1',
+						type: 'DYNAMIC',
+						order: 0,
+						selectedValue: '',
+						allSelected: false,
+					}),
+				},
+			});
+
+			const { doAllVariablesHaveValuesSelected } = getVariableDependencyContext();
+			expect(doAllVariablesHaveValuesSelected).toBe(false);
+		});
+	});
+});

frontend/src/providers/Dashboard/store/dashboardVariables/__tests__/dashboardVariablesStoreUtils.test.ts

@@ -0,0 +1,369 @@
+import { IDashboardVariable } from 'types/api/dashboard/getAll';
+
+import { IDashboardVariables } from '../dashboardVariablesStoreTypes';
+import {
+	buildDynamicVariableOrder,
+	buildSortedVariablesArray,
+	buildVariableTypesMap,
+	computeDerivedValues,
+} from '../dashboardVariablesStoreUtils';
+
+const createVariable = (
+	overrides: Partial<IDashboardVariable> = {},
+): IDashboardVariable => ({
+	id: 'test-id',
+	name: 'test-var',
+	description: '',
+	type: 'QUERY',
+	sort: 'DISABLED',
+	showALLOption: false,
+	multiSelect: false,
+	order: 0,
+	...overrides,
+});
+
+describe('dashboardVariablesStoreUtils', () => {
+	describe('buildSortedVariablesArray', () => {
+		it('should sort variables by order property', () => {
+			const variables: IDashboardVariables = {
+				c: createVariable({ name: 'c', order: 3 }),
+				a: createVariable({ name: 'a', order: 1 }),
+				b: createVariable({ name: 'b', order: 2 }),
+			};
+
+			const result = buildSortedVariablesArray(variables);
+
+			expect(result.map((v) => v.name)).toEqual(['a', 'b', 'c']);
+		});
+
+		it('should return empty array for empty variables', () => {
+			const result = buildSortedVariablesArray({});
+			expect(result).toEqual([]);
+		});
+
+		it('should create copies of variables (not references)', () => {
+			const original = createVariable({ name: 'a', order: 0 });
+			const variables: IDashboardVariables = { a: original };
+
+			const result = buildSortedVariablesArray(variables);
+
+			expect(result[0]).not.toBe(original);
+			expect(result[0]).toEqual(original);
+		});
+	});
+
+	describe('buildVariableTypesMap', () => {
+		it('should create a name-to-type mapping', () => {
+			const sorted = [
+				createVariable({ name: 'env', type: 'QUERY' }),
+				createVariable({ name: 'region', type: 'CUSTOM' }),
+				createVariable({ name: 'dynVar', type: 'DYNAMIC' }),
+				createVariable({ name: 'text', type: 'TEXTBOX' }),
+			];
+
+			const result = buildVariableTypesMap(sorted);
+
+			expect(result).toEqual({
+				env: 'QUERY',
+				region: 'CUSTOM',
+				dynVar: 'DYNAMIC',
+				text: 'TEXTBOX',
+			});
+		});
+
+		it('should return empty object for empty array', () => {
+			expect(buildVariableTypesMap([])).toEqual({});
+		});
+	});
+
+	describe('buildDynamicVariableOrder', () => {
+		it('should return only DYNAMIC variable names in order', () => {
+			const sorted = [
+				createVariable({ name: 'queryVar', type: 'QUERY', order: 0 }),
+				createVariable({ name: 'dyn1', type: 'DYNAMIC', order: 1 }),
+				createVariable({ name: 'customVar', type: 'CUSTOM', order: 2 }),
+				createVariable({ name: 'dyn2', type: 'DYNAMIC', order: 3 }),
+			];
+
+			const result = buildDynamicVariableOrder(sorted);
+
+			expect(result).toEqual(['dyn1', 'dyn2']);
+		});
+
+		it('should return empty array when no DYNAMIC variables exist', () => {
+			const sorted = [
+				createVariable({ name: 'a', type: 'QUERY' }),
+				createVariable({ name: 'b', type: 'CUSTOM' }),
+			];
+
+			expect(buildDynamicVariableOrder(sorted)).toEqual([]);
+		});
+
+		it('should return empty array for empty input', () => {
+			expect(buildDynamicVariableOrder([])).toEqual([]);
+		});
+	});
+
+	describe('computeDerivedValues', () => {
+		it('should compute all derived values from variables', () => {
+			const variables: IDashboardVariables = {
+				env: createVariable({
+					name: 'env',
+					type: 'QUERY',
+					order: 0,
+				}),
+				dyn1: createVariable({
+					name: 'dyn1',
+					type: 'DYNAMIC',
+					order: 1,
+				}),
+			};
+
+			const result = computeDerivedValues(variables);
+
+			expect(result.sortedVariablesArray).toHaveLength(2);
+			expect(result.sortedVariablesArray[0].name).toBe('env');
+			expect(result.sortedVariablesArray[1].name).toBe('dyn1');
+
+			expect(result.variableTypes).toEqual({
+				env: 'QUERY',
+				dyn1: 'DYNAMIC',
+			});
+
+			expect(result.dynamicVariableOrder).toEqual(['dyn1']);
+
+			// dependencyData should exist since there are variables
+			expect(result.dependencyData).not.toBeNull();
+		});
+
+		it('should return null dependencyData for empty variables', () => {
+			const result = computeDerivedValues({});
+
+			expect(result.sortedVariablesArray).toEqual([]);
+			expect(result.dependencyData).toBeNull();
+			expect(result.variableTypes).toEqual({});
+			expect(result.dynamicVariableOrder).toEqual([]);
+		});
+
+		it('should handle all four variable types together', () => {
+			const variables: IDashboardVariables = {
+				queryVar: createVariable({
+					name: 'queryVar',
+					type: 'QUERY',
+					order: 0,
+				}),
+				customVar: createVariable({
+					name: 'customVar',
+					type: 'CUSTOM',
+					order: 1,
+				}),
+				dynVar: createVariable({
+					name: 'dynVar',
+					type: 'DYNAMIC',
+					order: 2,
+				}),
+				textVar: createVariable({
+					name: 'textVar',
+					type: 'TEXTBOX',
+					order: 3,
+				}),
+			};
+
+			const result = computeDerivedValues(variables);
+
+			expect(result.sortedVariablesArray).toHaveLength(4);
+			expect(result.sortedVariablesArray.map((v) => v.name)).toEqual([
+				'queryVar',
+				'customVar',
+				'dynVar',
+				'textVar',
+			]);
+
+			expect(result.variableTypes).toEqual({
+				queryVar: 'QUERY',
+				customVar: 'CUSTOM',
+				dynVar: 'DYNAMIC',
+				textVar: 'TEXTBOX',
+			});
+
+			expect(result.dynamicVariableOrder).toEqual(['dynVar']);
+			expect(result.dependencyData).not.toBeNull();
+		});
+
+		it('should sort variables by order regardless of insertion order', () => {
+			const variables: IDashboardVariables = {
+				z: createVariable({ name: 'z', type: 'QUERY', order: 4 }),
+				a: createVariable({ name: 'a', type: 'CUSTOM', order: 0 }),
+				m: createVariable({ name: 'm', type: 'DYNAMIC', order: 2 }),
+				b: createVariable({ name: 'b', type: 'TEXTBOX', order: 1 }),
+				x: createVariable({ name: 'x', type: 'QUERY', order: 3 }),
+			};
+
+			const result = computeDerivedValues(variables);
+
+			expect(result.sortedVariablesArray.map((v) => v.name)).toEqual([
+				'a',
+				'b',
+				'm',
+				'x',
+				'z',
+			]);
+		});
+
+		it('should include multiple dynamic variables in order', () => {
+			const variables: IDashboardVariables = {
+				dyn3: createVariable({ name: 'dyn3', type: 'DYNAMIC', order: 5 }),
+				query1: createVariable({ name: 'query1', type: 'QUERY', order: 0 }),
+				dyn1: createVariable({ name: 'dyn1', type: 'DYNAMIC', order: 1 }),
+				custom1: createVariable({ name: 'custom1', type: 'CUSTOM', order: 2 }),
+				dyn2: createVariable({ name: 'dyn2', type: 'DYNAMIC', order: 3 }),
+			};
+
+			const result = computeDerivedValues(variables);
+
+			expect(result.dynamicVariableOrder).toEqual(['dyn1', 'dyn2', 'dyn3']);
+		});
+
+		it('should build dependency data with query variable order for dependent queries', () => {
+			const variables: IDashboardVariables = {
+				env: createVariable({
+					name: 'env',
+					type: 'QUERY',
+					order: 0,
+					queryValue: 'SELECT DISTINCT env FROM table',
+				}),
+				service: createVariable({
+					name: 'service',
+					type: 'QUERY',
+					order: 1,
+					queryValue: 'SELECT DISTINCT service FROM table WHERE env={{.env}}',
+				}),
+			};
+
+			const result = computeDerivedValues(variables);
+
+			const { dependencyData } = result;
+			expect(dependencyData).not.toBeNull();
+			// env should appear in the dependency order (it's a root QUERY variable)
+			expect(dependencyData?.order).toContain('env');
+			// service depends on env, so it should also be in the order
+			expect(dependencyData?.order).toContain('service');
+			// env comes before service in topological order
+			const envIdx = dependencyData?.order.indexOf('env') ?? -1;
+			const svcIdx = dependencyData?.order.indexOf('service') ?? -1;
+			expect(envIdx).toBeLessThan(svcIdx);
+		});
+
+		it('should not include non-QUERY variables in dependency order', () => {
+			const variables: IDashboardVariables = {
+				env: createVariable({
+					name: 'env',
+					type: 'QUERY',
+					order: 0,
+					queryValue: 'SELECT DISTINCT env FROM table',
+				}),
+				customVar: createVariable({
+					name: 'customVar',
+					type: 'CUSTOM',
+					order: 1,
+				}),
+				dynVar: createVariable({
+					name: 'dynVar',
+					type: 'DYNAMIC',
+					order: 2,
+				}),
+				textVar: createVariable({
+					name: 'textVar',
+					type: 'TEXTBOX',
+					order: 3,
+				}),
+			};
+
+			const result = computeDerivedValues(variables);
+
+			expect(result.dependencyData).not.toBeNull();
+			// Only QUERY variables should be in the dependency order
+			result.dependencyData?.order.forEach((name) => {
+				expect(result.variableTypes[name]).toBe('QUERY');
+			});
+		});
+
+		it('should produce transitive descendants in dependency data', () => {
+			const variables: IDashboardVariables = {
+				region: createVariable({
+					name: 'region',
+					type: 'QUERY',
+					order: 0,
+					queryValue: 'SELECT region FROM table',
+				}),
+				cluster: createVariable({
+					name: 'cluster',
+					type: 'QUERY',
+					order: 1,
+					queryValue: 'SELECT cluster FROM table WHERE region={{.region}}',
+				}),
+				host: createVariable({
+					name: 'host',
+					type: 'QUERY',
+					order: 2,
+					queryValue: 'SELECT host FROM table WHERE cluster={{.cluster}}',
+				}),
+			};
+
+			const result = computeDerivedValues(variables);
+
+			const { dependencyData: depData } = result;
+			expect(depData).not.toBeNull();
+			expect(depData?.transitiveDescendants).toBeDefined();
+			// region's transitive descendants should include cluster and host
+			expect(depData?.transitiveDescendants['region']).toEqual(
+				expect.arrayContaining(['cluster', 'host']),
+			);
+		});
+
+		it('should handle a single variable', () => {
+			const variables: IDashboardVariables = {
+				solo: createVariable({
+					name: 'solo',
+					type: 'QUERY',
+					order: 0,
+				}),
+			};
+
+			const result = computeDerivedValues(variables);
+
+			expect(result.sortedVariablesArray).toHaveLength(1);
+			expect(result.variableTypes).toEqual({ solo: 'QUERY' });
+			expect(result.dynamicVariableOrder).toEqual([]);
+			expect(result.dependencyData).not.toBeNull();
+			expect(result.dependencyData?.order).toEqual(['solo']);
+		});
+
+		it('should handle only non-QUERY variables', () => {
+			const variables: IDashboardVariables = {
+				custom1: createVariable({
+					name: 'custom1',
+					type: 'CUSTOM',
+					order: 0,
+				}),
+				text1: createVariable({
+					name: 'text1',
+					type: 'TEXTBOX',
+					order: 1,
+				}),
+				dyn1: createVariable({
+					name: 'dyn1',
+					type: 'DYNAMIC',
+					order: 2,
+				}),
+			};
+
+			const result = computeDerivedValues(variables);
+
+			expect(result.sortedVariablesArray).toHaveLength(3);
+			// No QUERY variables, so dependency order should be empty
+			expect(result.dependencyData?.order).toEqual([]);
+			expect(result.dynamicVariableOrder).toEqual(['dyn1']);
+		});
+	});
+});

frontend/src/providers/Dashboard/store/dashboardVariables/dashboardVariablesStore.ts

@@ -1,4 +1,7 @@
+import { isEmpty, isUndefined } from 'lodash-es';
+
 import createStore from '../store';
+import { VariableFetchContext } from '../variableFetchStore';
 import { IDashboardVariablesStoreState } from './dashboardVariablesStoreTypes';
 import {
 	computeDerivedValues,
@@ -10,6 +13,8 @@ const initialState: IDashboardVariablesStoreState = {
 	variables: {},
 	sortedVariablesArray: [],
 	dependencyData: null,
+	variableTypes: {},
+	dynamicVariableOrder: [],
 };
 
 export const dashboardVariablesStore = createStore<IDashboardVariablesStoreState>(
@@ -55,3 +60,38 @@ export function updateDashboardVariablesStore({
 		updateDerivedValues(draft);
 	});
 }
+
+/**
+ * Read current store snapshot as VariableFetchContext.
+ * Used by components to pass context to variableFetchStore actions
+ * without creating a circular import.
+ */
+export function getVariableDependencyContext(): VariableFetchContext {
+	const state = dashboardVariablesStore.getSnapshot();
+
+	// If every variable already has a selectedValue (e.g. persisted from
+	// localStorage/URL), dynamic variables can start in parallel.
+	// Otherwise they wait for query vars to settle first.
+	const doAllVariablesHaveValuesSelected = Object.values(state.variables).every(
+		(variable) => {
+			if (
+				variable.type === 'DYNAMIC' &&
+				(variable.selectedValue === null || isEmpty(variable.selectedValue)) &&
+				variable.allSelected === true
+			) {
+				return true;
+			}
+
+			return (
+				!isUndefined(variable.selectedValue) && !isEmpty(variable.selectedValue)
+			);
+		},
+	);
+
+	return {
+		doAllVariablesHaveValuesSelected,
+		variableTypes: state.variableTypes,
+		dynamicVariableOrder: state.dynamicVariableOrder,
+		dependencyData: state.dependencyData,
+	};
+}

frontend/src/providers/Dashboard/store/dashboardVariables/dashboardVariablesStoreTypes.ts

@@ -1,11 +1,18 @@
-import { IDashboardVariable } from 'types/api/dashboard/getAll';
+import {
+	IDashboardVariable,
+	TVariableQueryType,
+} from 'types/api/dashboard/getAll';
 
 export type VariableGraph = Record<string, string[]>;
 
 export interface IDependencyData {
 	order: string[];
+	// Direct children for each variable
 	graph: VariableGraph;
+	// Direct parents for each variable
 	parentDependencyGraph: VariableGraph;
+	// Pre-computed transitive descendants for each node (all reachable nodes, not just direct children)
+	transitiveDescendants: VariableGraph;
 	hasCycle: boolean;
 	cycleNodes?: string[];
 }
@@ -24,6 +31,12 @@ export interface IDashboardVariablesStoreState {
 
 	// Derived: dependency data for QUERY variables
 	dependencyData: IDependencyData | null;
+
+	// Derived: variable name → type mapping
+	variableTypes: Record<string, TVariableQueryType>;
+
+	// Derived: display-ordered list of dynamic variable names
+	dynamicVariableOrder: string[];
 }
 
 export interface IUseDashboardVariablesReturn {

frontend/src/providers/Dashboard/store/dashboardVariables/dashboardVariablesStoreUtils.ts

@@ -2,9 +2,11 @@ import {
 	buildDependencies,
 	buildDependencyGraph,
 } from 'container/DashboardContainer/DashboardVariablesSelection/util';
-import { IDashboardVariable } from 'types/api/dashboard/getAll';
+import {
+	IDashboardVariable,
+	TVariableQueryType,
+} from 'types/api/dashboard/getAll';
 
-import { initializeVariableFetchStore } from '../variableFetchStore';
 import {
 	IDashboardVariables,
 	IDashboardVariablesStoreState,
@@ -44,6 +46,7 @@ export function buildDependencyData(
 		order,
 		graph,
 		parentDependencyGraph,
+		transitiveDescendants,
 		hasCycle,
 		cycleNodes,
 	} = buildDependencyGraph(dependencies);
@@ -58,49 +61,62 @@ export function buildDependencyData(
 		order: queryVariableOrder,
 		graph,
 		parentDependencyGraph,
+		transitiveDescendants,
 		hasCycle,
 		cycleNodes,
 	};
 }
 
 /**
- * Initialize the variable fetch store with the computed dependency data
+ * Build a variable name → type mapping from sorted variables array
  */
-function initializeFetchStore(
+export function buildVariableTypesMap(
 	sortedVariablesArray: IDashboardVariable[],
-	dependencyData: IDependencyData | null,
-): void {
-	if (dependencyData) {
-		const allVariableNames = sortedVariablesArray
-			.map((v) => v.name)
-			.filter((name): name is string => !!name);
+): Record<string, TVariableQueryType> {
+	const types: Record<string, TVariableQueryType> = {};
+	sortedVariablesArray.forEach((v) => {
+		if (v.name) {
+			types[v.name] = v.type;
+		}
+	});
+	return types;
+}
 
-		initializeVariableFetchStore(
-			allVariableNames,
-			dependencyData.graph,
-			dependencyData.parentDependencyGraph,
-		);
-	}
+/**
+ * Build display-ordered list of dynamic variable names
+ */
+export function buildDynamicVariableOrder(
+	sortedVariablesArray: IDashboardVariable[],
+): string[] {
+	return sortedVariablesArray
+		.filter((v) => v.type === 'DYNAMIC' && v.name)
+		.map((v) => v.name as string);
 }
 
 /**
  * Compute derived values from variables
  * This is a composition of buildSortedVariablesArray and buildDependencyData
- * Also initializes the variable fetch store with the new dependency data
  */
 export function computeDerivedValues(
 	variables: IDashboardVariablesStoreState['variables'],
 ): Pick<
 	IDashboardVariablesStoreState,
-	'sortedVariablesArray' | 'dependencyData'
+	| 'sortedVariablesArray'
+	| 'dependencyData'
+	| 'variableTypes'
+	| 'dynamicVariableOrder'
 > {
 	const sortedVariablesArray = buildSortedVariablesArray(variables);
 	const dependencyData = buildDependencyData(sortedVariablesArray);
+	const variableTypes = buildVariableTypesMap(sortedVariablesArray);
+	const dynamicVariableOrder = buildDynamicVariableOrder(sortedVariablesArray);
 
-	// Initialize the variable fetch store when dependency data is computed
-	initializeFetchStore(sortedVariablesArray, dependencyData);
-
-	return { sortedVariablesArray, dependencyData };
+	return {
+		sortedVariablesArray,
+		dependencyData,
+		variableTypes,
+		dynamicVariableOrder,
+	};
 }
 
 /**
@@ -112,7 +128,8 @@ export function updateDerivedValues(
 ): void {
 	draft.sortedVariablesArray = buildSortedVariablesArray(draft.variables);
 	draft.dependencyData = buildDependencyData(draft.sortedVariablesArray);
-
-	// Initialize the variable fetch store when dependency data is updated
-	initializeFetchStore(draft.sortedVariablesArray, draft.dependencyData);
+	draft.variableTypes = buildVariableTypesMap(draft.sortedVariablesArray);
+	draft.dynamicVariableOrder = buildDynamicVariableOrder(
+		draft.sortedVariablesArray,
+	);
 }

frontend/src/providers/Dashboard/store/variableFetchStore.ts

@@ -1,6 +1,12 @@
-import { VariableGraph } from 'container/DashboardContainer/DashboardVariablesSelection/util';
-
+import { getVariableDependencyContext } from './dashboardVariables/dashboardVariablesStore';
+import { IDashboardVariablesStoreState } from './dashboardVariables/dashboardVariablesStoreTypes';
 import createStore from './store';
+import {
+	areAllQueryVariablesSettled,
+	isSettled,
+	resolveFetchState,
+	unlockWaitingDynamicVariables,
+} from './variableFetchStoreUtils';
 
 // Fetch state for each variable
 export type VariableFetchState =
@@ -14,19 +20,29 @@ export interface IVariableFetchStoreState {
 	// Per-variable fetch state
 	states: Record<string, VariableFetchState>;
 
-	// Dependency graphs (set once when variables change)
-	dependencyGraph: VariableGraph; // variable -> children that depend on it
-	parentGraph: VariableGraph; // variable -> parents it depends on
-
-	// Track last update timestamp per variable to trigger re-fetches
+	// Track last update timestamp per variable
 	lastUpdated: Record<string, number>;
+
+	// Per-variable cycle counter — bumped when a variable needs to refetch.
+	// Used in react-query keys to auto-cancel stale requests for that variable only.
+	cycleIds: Record<string, number>;
 }
 
+/**
+ * Context from dashboardVariablesStore needed by fetch actions.
+ * Passed as parameter to avoid circular imports.
+ */
+export type VariableFetchContext = Pick<
+	IDashboardVariablesStoreState,
+	'variableTypes' | 'dynamicVariableOrder' | 'dependencyData'
+> & {
+	doAllVariablesHaveValuesSelected: boolean;
+};
+
 const initialState: IVariableFetchStoreState = {
 	states: {},
-	dependencyGraph: {},
-	parentGraph: {},
 	lastUpdated: {},
+	cycleIds: {},
 };
 
 export const variableFetchStore = createStore<IVariableFetchStoreState>(
@@ -36,22 +52,183 @@ export const variableFetchStore = createStore<IVariableFetchStoreState>(
 // ============== Actions ==============
 
 /**
- * Initialize the store with dependency graphs and set initial states
+ * Initialize the store with variable names.
+ * Called when dashboard variables change — sets up state entries.
  */
-export function initializeVariableFetchStore(
-	variableNames: string[],
-	dependencyGraph: VariableGraph,
-	parentGraph: VariableGraph,
-): void {
+export function initializeVariableFetchStore(variableNames: string[]): void {
 	variableFetchStore.update((draft) => {
-		draft.dependencyGraph = dependencyGraph;
-		draft.parentGraph = parentGraph;
-
-		// Initialize all variables to idle, preserving existing ready states
+		// Initialize all variables to idle, preserving existing states
 		variableNames.forEach((name) => {
 			if (!draft.states[name]) {
 				draft.states[name] = 'idle';
 			}
 		});
+
+		// Clean up stale entries for variables that no longer exist
+		const nameSet = new Set(variableNames);
+		Object.keys(draft.states).forEach((name) => {
+			if (!nameSet.has(name)) {
+				delete draft.states[name];
+				delete draft.lastUpdated[name];
+				delete draft.cycleIds[name];
+			}
+		});
+	});
+}
+
+/**
+ * Start a full fetch cycle for all fetchable variables.
+ * Called on: initial load, time range change, or dependency graph change.
+ *
+ * Query variables with no query-type parents start immediately.
+ * Query variables with query-type parents get 'waiting'.
+ * Dynamic variables start immediately if all variables already have
+ * selectedValues (e.g. persisted from localStorage/URL). Otherwise they
+ * wait for all query variables to settle first.
+ */
+export function enqueueFetchOfAllVariables(): void {
+	const {
+		doAllVariablesHaveValuesSelected,
+		dependencyData,
+		variableTypes,
+		dynamicVariableOrder,
+	} = getVariableDependencyContext();
+	if (!dependencyData) {
+		return;
+	}
+
+	const { order: queryVariableOrder, parentDependencyGraph } = dependencyData;
+
+	variableFetchStore.update((draft) => {
+		// Query variables: root ones start immediately, dependent ones wait
+		queryVariableOrder.forEach((name) => {
+			draft.cycleIds[name] = (draft.cycleIds[name] || 0) + 1;
+			const parents = parentDependencyGraph[name] || [];
+			const hasQueryParents = parents.some((p) => variableTypes[p] === 'QUERY');
+			if (hasQueryParents) {
+				draft.states[name] = 'waiting';
+			} else {
+				draft.states[name] = resolveFetchState(draft, name);
+			}
+		});
+
+		// Dynamic variables: start immediately if query variables have values,
+		// otherwise wait for query variables to settle first
+		dynamicVariableOrder.forEach((name) => {
+			draft.cycleIds[name] = (draft.cycleIds[name] || 0) + 1;
+			draft.states[name] = doAllVariablesHaveValuesSelected
+				? resolveFetchState(draft, name)
+				: 'waiting';
+		});
+	});
+}
+
+/**
+ * Mark a variable as completed. Unblocks waiting query-type children.
+ * If all query variables are now settled, unlocks any waiting dynamic variables.
+ */
+export function onVariableFetchComplete(name: string): void {
+	const {
+		dependencyData,
+		variableTypes,
+		dynamicVariableOrder,
+	} = getVariableDependencyContext();
+
+	variableFetchStore.update((draft) => {
+		draft.states[name] = 'idle';
+		draft.lastUpdated[name] = Date.now();
+
+		if (!dependencyData) {
+			return;
+		}
+
+		const { graph } = dependencyData;
+
+		// Unblock waiting query-type children
+		const children = graph[name] || [];
+		children.forEach((child) => {
+			if (variableTypes[child] === 'QUERY' && draft.states[child] === 'waiting') {
+				draft.states[child] = resolveFetchState(draft, child);
+			}
+		});
+
+		// If all query variables are settled, unlock any waiting dynamic variables
+		if (
+			variableTypes[name] === 'QUERY' &&
+			areAllQueryVariablesSettled(draft.states, variableTypes)
+		) {
+			unlockWaitingDynamicVariables(draft, dynamicVariableOrder);
+		}
+	});
+}
+
+/**
+ * Mark a variable as errored. Sets query-type descendants to idle
+ * (they can't proceed without this parent).
+ * If all query variables are now settled, unlocks any waiting dynamic variables.
+ */
+export function onVariableFetchFailure(name: string): void {
+	const {
+		dependencyData,
+		variableTypes,
+		dynamicVariableOrder,
+	} = getVariableDependencyContext();
+
+	variableFetchStore.update((draft) => {
+		draft.states[name] = 'error';
+
+		if (!dependencyData) {
+			return;
+		}
+
+		// Set query-type descendants to idle (can't fetch without parent)
+		const descendants = dependencyData.transitiveDescendants[name] || [];
+		descendants.forEach((desc) => {
+			if (variableTypes[desc] === 'QUERY') {
+				draft.states[desc] = 'idle';
+			}
+		});
+
+		// If all query variables are settled (error counts), unlock any waiting dynamic variables
+		if (
+			variableTypes[name] === 'QUERY' &&
+			areAllQueryVariablesSettled(draft.states, variableTypes)
+		) {
+			unlockWaitingDynamicVariables(draft, dynamicVariableOrder);
+		}
+	});
+}
+
+/**
+ * Cascade a value change to query-type descendants.
+ * Called when a user changes a variable's value (not from a fetch cycle).
+ *
+ * Direct children whose parents are all settled start immediately.
+ * Deeper descendants wait until their parents complete (BFS order
+ * ensures parents are set before children within a single update).
+ */
+export function enqueueDescendantsOfVariable(name: string): void {
+	const { dependencyData, variableTypes } = getVariableDependencyContext();
+	if (!dependencyData) {
+		return;
+	}
+
+	const { parentDependencyGraph } = dependencyData;
+
+	variableFetchStore.update((draft) => {
+		const descendants = dependencyData.transitiveDescendants[name] || [];
+		const queryDescendants = descendants.filter(
+			(desc) => variableTypes[desc] === 'QUERY',
+		);
+
+		queryDescendants.forEach((desc) => {
+			draft.cycleIds[desc] = (draft.cycleIds[desc] || 0) + 1;
+			const parents = parentDependencyGraph[desc] || [];
+			const allParentsSettled = parents.every((p) => isSettled(draft.states[p]));
+
+			draft.states[desc] = allParentsSettled
+				? resolveFetchState(draft, desc)
+				: 'waiting';
+		});
 	});
 }

frontend/src/providers/Dashboard/store/variableFetchStoreUtils.ts

@@ -0,0 +1,46 @@
+import { TVariableQueryType } from 'types/api/dashboard/getAll';
+
+import {
+	IVariableFetchStoreState,
+	VariableFetchState,
+} from './variableFetchStore';
+
+export function isSettled(state: VariableFetchState | undefined): boolean {
+	return state === 'idle' || state === 'error';
+}
+
+/**
+ * Resolve the next fetch state based on whether the variable has been fetched before.
+ */
+export function resolveFetchState(
+	draft: IVariableFetchStoreState,
+	name: string,
+): VariableFetchState {
+	return (draft.lastUpdated[name] || 0) > 0 ? 'revalidating' : 'loading';
+}
+
+/**
+ * Check if all query variables are settled (idle or error).
+ */
+export function areAllQueryVariablesSettled(
+	states: Record<string, VariableFetchState>,
+	variableTypes: Record<string, TVariableQueryType>,
+): boolean {
+	return Object.entries(variableTypes)
+		.filter(([, type]) => type === 'QUERY')
+		.every(([name]) => isSettled(states[name]));
+}
+
+/**
+ * Transition waiting dynamic variables to loading/revalidating if in 'waiting' state.
+ */
+export function unlockWaitingDynamicVariables(
+	draft: IVariableFetchStoreState,
+	dynamicVariableOrder: string[],
+): void {
+	dynamicVariableOrder.forEach((dynName) => {
+		if (draft.states[dynName] === 'waiting') {
+			draft.states[dynName] = resolveFetchState(draft, dynName);
+		}
+	});
+}

frontend/src/providers/Dashboard/types.ts

@@ -47,8 +47,6 @@ export interface IDashboardContext {
 		allSelected: boolean,
 		isDynamic?: boolean,
 	) => void;
-	variablesToGetUpdated: string[];
-	setVariablesToGetUpdated: React.Dispatch<React.SetStateAction<string[]>>;
 	dashboardQueryRangeCalled: boolean;
 	setDashboardQueryRangeCalled: (value: boolean) => void;
 	selectedRowWidgetId: string | null;

frontend/src/types/api/metrics/getQueryRange.ts

@@ -1,13 +1,14 @@
 import { PANEL_TYPES } from 'constants/queryBuilder';
 import { EQueryType } from 'types/common/dashboard';
 
-import { Warning } from '..';
+import { SuccessResponse, Warning } from '..';
 import {
 	IBuilderFormula,
 	IBuilderQuery,
 	IClickHouseQuery,
 	IPromQLQuery,
 } from '../queryBuilder/queryBuilderData';
+import { ExecStats } from '../v5/queryRange';
 import { QueryData, QueryDataV3 } from '../widgets/getQuery';
 
 export type QueryRangePayload = {
@@ -35,8 +36,15 @@ export interface MetricRangePayloadProps {
 		newResult: MetricRangePayloadV3;
 		warnings?: string[];
 	};
+	meta?: ExecStats;
 }
 
+/** Query range success response including optional warning and meta */
+export type MetricQueryRangeSuccessResponse = SuccessResponse<
+	MetricRangePayloadProps,
+	unknown
+> & { warning?: Warning; meta?: ExecStats };
+
 export interface MetricRangePayloadV3 {
 	data: {
 		result: QueryDataV3[];
@@ -44,4 +52,5 @@ export interface MetricRangePayloadV3 {
 		warnings?: string[];
 	};
 	warning?: Warning;
+	meta?: ExecStats;
 }

frontend/src/types/api/onboarding/types.ts

@@ -7,4 +7,5 @@ export interface UpdateProfileProps {
 	number_of_services: number;
 	number_of_hosts: number;
 	where_did_you_discover_signoz: string;
+	timeline_for_migrating_to_signoz: string;
 }

frontend/src/types/api/v5/queryRange.ts

@@ -334,6 +334,7 @@ export interface ExecStats {
 	rowsScanned: number;
 	bytesScanned: number;
 	durationMs: number;
+	stepIntervals: Record<string, number>;
 }
 
 export interface Label {

frontend/yarn.lock

@@ -4073,6 +4073,16 @@
     "@radix-ui/react-primitive" "1.0.3"
     "@radix-ui/react-slot" "1.0.2"
 
+"@radix-ui/react-collection@1.1.7":
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/@radix-ui/react-collection/-/react-collection-1.1.7.tgz#d05c25ca9ac4695cc19ba91f42f686e3ea2d9aec"
+  integrity sha512-Fh9rGN0MoI4ZFUNyfFVNU4y9LUz93u9/0K+yLgA2bwRojxM8JU1DyvvMBabnZPBgMWREAJvU2jjVzq+LrFUglw==
+  dependencies:
+    "@radix-ui/react-compose-refs" "1.1.2"
+    "@radix-ui/react-context" "1.1.2"
+    "@radix-ui/react-primitive" "2.1.3"
+    "@radix-ui/react-slot" "1.2.3"
+
 "@radix-ui/react-compose-refs@1.0.0":
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/@radix-ui/react-compose-refs/-/react-compose-refs-1.0.0.tgz#37595b1f16ec7f228d698590e78eeed18ff218ae"
@@ -4159,6 +4169,11 @@
   dependencies:
     "@babel/runtime" "^7.13.10"
 
+"@radix-ui/react-direction@1.1.1":
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/@radix-ui/react-direction/-/react-direction-1.1.1.tgz#39e5a5769e676c753204b792fbe6cf508e550a14"
+  integrity sha512-1UEWRX6jnOA2y4H5WczZ44gOOjTEmlqv1uNW4GAJEO5+bauCBhv8snY65Iw5/VOS/ghKN9gr2KjnLKxrsvoMVw==
+
 "@radix-ui/react-dismissable-layer@1.0.0":
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/@radix-ui/react-dismissable-layer/-/react-dismissable-layer-1.0.0.tgz#35b7826fa262fd84370faef310e627161dffa76b"
@@ -4387,6 +4402,22 @@
   dependencies:
     "@radix-ui/react-slot" "1.2.4"
 
+"@radix-ui/react-radio-group@^1.3.4":
+  version "1.3.8"
+  resolved "https://registry.yarnpkg.com/@radix-ui/react-radio-group/-/react-radio-group-1.3.8.tgz#93f102b5b948d602c2f2adb1bc5c347cbaf64bd9"
+  integrity sha512-VBKYIYImA5zsxACdisNQ3BjCBfmbGH3kQlnFVqlWU4tXwjy7cGX8ta80BcrO+WJXIn5iBylEH3K6ZTlee//lgQ==
+  dependencies:
+    "@radix-ui/primitive" "1.1.3"
+    "@radix-ui/react-compose-refs" "1.1.2"
+    "@radix-ui/react-context" "1.1.2"
+    "@radix-ui/react-direction" "1.1.1"
+    "@radix-ui/react-presence" "1.1.5"
+    "@radix-ui/react-primitive" "2.1.3"
+    "@radix-ui/react-roving-focus" "1.1.11"
+    "@radix-ui/react-use-controllable-state" "1.2.2"
+    "@radix-ui/react-use-previous" "1.1.1"
+    "@radix-ui/react-use-size" "1.1.1"
+
 "@radix-ui/react-roving-focus@1.0.4":
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/@radix-ui/react-roving-focus/-/react-roving-focus-1.0.4.tgz#e90c4a6a5f6ac09d3b8c1f5b5e81aab2f0db1974"
@@ -4403,6 +4434,21 @@
     "@radix-ui/react-use-callback-ref" "1.0.1"
     "@radix-ui/react-use-controllable-state" "1.0.1"
 
+"@radix-ui/react-roving-focus@1.1.11":
+  version "1.1.11"
+  resolved "https://registry.yarnpkg.com/@radix-ui/react-roving-focus/-/react-roving-focus-1.1.11.tgz#ef54384b7361afc6480dcf9907ef2fedb5080fd9"
+  integrity sha512-7A6S9jSgm/S+7MdtNDSb+IU859vQqJ/QAtcYQcfFC6W8RS4IxIZDldLR0xqCFZ6DCyrQLjLPsxtTNch5jVA4lA==
+  dependencies:
+    "@radix-ui/primitive" "1.1.3"
+    "@radix-ui/react-collection" "1.1.7"
+    "@radix-ui/react-compose-refs" "1.1.2"
+    "@radix-ui/react-context" "1.1.2"
+    "@radix-ui/react-direction" "1.1.1"
+    "@radix-ui/react-id" "1.1.1"
+    "@radix-ui/react-primitive" "2.1.3"
+    "@radix-ui/react-use-callback-ref" "1.1.1"
+    "@radix-ui/react-use-controllable-state" "1.2.2"
+
 "@radix-ui/react-slot@1.0.0":
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/@radix-ui/react-slot/-/react-slot-1.0.0.tgz#7fa805b99891dea1e862d8f8fbe07f4d6d0fd698"
@@ -5075,6 +5121,20 @@
     tailwind-merge "^2.5.2"
     tailwindcss-animate "^1.0.7"
 
+"@signozhq/radio-group@0.0.2":
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/@signozhq/radio-group/-/radio-group-0.0.2.tgz#4b13567bfee2645226f2cf41f261bbb288e1be4b"
+  integrity sha512-ahykmA5hPujOC964CFveMlQ12tWSyut2CUiFRqT1QxRkOLS2R44Qn2hh2psqJJ18JMX/24ZYCAIh9Bdd5XW+7g==
+  dependencies:
+    "@radix-ui/react-icons" "^1.3.0"
+    "@radix-ui/react-radio-group" "^1.3.4"
+    "@radix-ui/react-slot" "^1.1.0"
+    class-variance-authority "^0.7.0"
+    clsx "^2.1.1"
+    lucide-react "^0.445.0"
+    tailwind-merge "^2.5.2"
+    tailwindcss-animate "^1.0.7"
+
 "@signozhq/resizable@0.0.0":
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/@signozhq/resizable/-/resizable-0.0.0.tgz#a517818b9f9bcdaeafc55ae134be86522bc90e9f"

pkg/emailing/config.go

@@ -10,6 +10,27 @@ type Config struct {
 
 type Templates struct {
 	Directory string `mapstructure:"directory"`
+	Format    Format `mapstructure:"format"`
+}
+
+type Format struct {
+	Header Header `mapstructure:"header"`
+	Help   Help   `mapstructure:"help"`
+	Footer Footer `mapstructure:"footer"`
+}
+
+type Header struct {
+	Enabled bool   `mapstructure:"enabled"`
+	LogoURL string `mapstructure:"logo_url"`
+}
+
+type Help struct {
+	Enabled bool   `mapstructure:"enabled"`
+	Email   string `mapstructure:"email"`
+}
+
+type Footer struct {
+	Enabled bool `mapstructure:"enabled"`
 }
 
 type SMTP struct {
@@ -45,6 +66,19 @@ func newConfig() factory.Config {
 		Enabled: false,
 		Templates: Templates{
 			Directory: "/root/templates",
+			Format: Format{
+				Header: Header{
+					Enabled: false,
+					LogoURL: "",
+				},
+				Help: Help{
+					Enabled: false,
+					Email:   "",
+				},
+				Footer: Footer{
+					Enabled: false,
+				},
+			},
 		},
 		SMTP: SMTP{
 			Address: "localhost:25",

pkg/emailing/smtpemailing/provider.go

@@ -15,6 +15,7 @@ type provider struct {
 	settings factory.ScopedProviderSettings
 	store    emailtypes.TemplateStore
 	client   *client.Client
+	config   emailing.Config
 }
 
 func NewFactory() factory.ProviderFactory[emailing.Emailing, emailing.Config] {
@@ -55,7 +56,12 @@ func New(ctx context.Context, providerSettings factory.ProviderSettings, config
 		return nil, err
 	}
 
-	return &provider{settings: settings, store: store, client: client}, nil
+	return &provider{
+		settings: settings,
+		store:    store,
+		client:   client,
+		config:   config,
+	}, nil
 }
 
 func (provider *provider) SendHTML(ctx context.Context, to string, subject string, templateName emailtypes.TemplateName, data map[string]any) error {
@@ -69,8 +75,19 @@ func (provider *provider) SendHTML(ctx context.Context, to string, subject strin
 		return err
 	}
 
+	// if no data is provided, create an empty map to prevent a panic when we add the format, to, and subject data
+	if data == nil {
+		data = make(map[string]any)
+	}
+
+	// the following are overridden if provided in the data map
+	data["format"] = provider.config.Templates.Format
+	data["to"] = to
+	data["subject"] = subject
+
 	content, err := emailtypes.NewContent(template, data)
 	if err != nil {
+		provider.settings.Logger().ErrorContext(ctx, "failed to create email content", "error", err)
 		return err
 	}