feat: connector line ux

Add the TimelineV3 component to the sticky header of the waterfall's
right panel so timeline tick marks are visible. Add horizontal padding
to both the timeline header and span duration bars to prevent label
overflow/clipping at the edges.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.devenv/docker/clickhouse/compose.yaml

@@ -1,22 +1,4 @@
 services:
-  init-clickhouse:
-    image: clickhouse/clickhouse-server:25.5.6
-    container_name: init-clickhouse
-    command:
-      - bash
-      - -c
-      - |
-        version="v0.0.1"
-        node_os=$$(uname -s | tr '[:upper:]' '[:lower:]')
-        node_arch=$$(uname -m | sed s/aarch64/arm64/ | sed s/x86_64/amd64/)
-        echo "Fetching histogram-binary for $${node_os}/$${node_arch}"
-        cd /tmp
-        wget -O histogram-quantile.tar.gz "https://github.com/SigNoz/signoz/releases/download/histogram-quantile%2F$${version}/histogram-quantile_$${node_os}_$${node_arch}.tar.gz"
-        tar -xvzf histogram-quantile.tar.gz
-        mv histogram-quantile /var/lib/clickhouse/user_scripts/histogramQuantile
-    restart: on-failure
-    volumes:
-      - ${PWD}/fs/tmp/var/lib/clickhouse/user_scripts/:/var/lib/clickhouse/user_scripts/
   clickhouse:
     image: clickhouse/clickhouse-server:25.5.6
     container_name: clickhouse
@@ -25,7 +7,6 @@ services:
       - ${PWD}/fs/etc/clickhouse-server/users.d/users.xml:/etc/clickhouse-server/users.d/users.xml
       - ${PWD}/fs/tmp/var/lib/clickhouse/:/var/lib/clickhouse/
       - ${PWD}/fs/tmp/var/lib/clickhouse/user_scripts/:/var/lib/clickhouse/user_scripts/
-      - ${PWD}/../../../deploy/common/clickhouse/custom-function.xml:/etc/clickhouse-server/custom-function.xml
     ports:
       - '127.0.0.1:8123:8123'
       - '127.0.0.1:9000:9000'
@@ -41,10 +22,7 @@ services:
       timeout: 5s
       retries: 3
     depends_on:
-      init-clickhouse:
-        condition: service_completed_successfully
-      zookeeper:
-        condition: service_healthy
+      - zookeeper
     environment:
       - CLICKHOUSE_SKIP_USER_SETUP=1
   zookeeper:

.devenv/docker/clickhouse/fs/etc/clickhouse-server/config.d/config.xml

@@ -44,6 +44,4 @@
         <shard>01</shard>
         <replica>01</replica>
     </macros>
-    <user_defined_executable_functions_config>*function.xml</user_defined_executable_functions_config>
-    <user_scripts_path>/var/lib/clickhouse/user_scripts/</user_scripts_path>
 </clickhouse>

.github/CODEOWNERS

@@ -127,15 +127,12 @@
 /frontend/src/pages/DashboardsListPage/ @SigNoz/pulse-frontend
 /frontend/src/container/ListOfDashboard/ @SigNoz/pulse-frontend
 
-# Dashboard Widget Page
-/frontend/src/pages/DashboardWidget/ @SigNoz/pulse-frontend
-/frontend/src/container/NewWidget/ @SigNoz/pulse-frontend
-
 ## Dashboard Page
 
 /frontend/src/pages/DashboardPage/ @SigNoz/pulse-frontend
 /frontend/src/container/DashboardContainer/ @SigNoz/pulse-frontend
 /frontend/src/container/GridCardLayout/ @SigNoz/pulse-frontend
+/frontend/src/container/NewWidget/ @SigNoz/pulse-frontend
 
 ## Public Dashboard Page
 

deploy/docker-swarm/docker-compose.ha.yaml

@@ -190,7 +190,7 @@ services:
       # - ../common/clickhouse/storage.xml:/etc/clickhouse-server/config.d/storage.xml
   signoz:
     !!merge <<: *db-depend
-    image: signoz/signoz:v0.115.0
+    image: signoz/signoz:v0.114.1
     ports:
       - "8080:8080" # signoz port
     #   - "6060:6060"     # pprof port

deploy/docker-swarm/docker-compose.yaml

@@ -117,7 +117,7 @@ services:
       # - ../common/clickhouse/storage.xml:/etc/clickhouse-server/config.d/storage.xml
   signoz:
     !!merge <<: *db-depend
-    image: signoz/signoz:v0.115.0
+    image: signoz/signoz:v0.114.1
     ports:
       - "8080:8080" # signoz port
     volumes:

deploy/docker/docker-compose.ha.yaml

@@ -181,7 +181,7 @@ services:
       # - ../common/clickhouse/storage.xml:/etc/clickhouse-server/config.d/storage.xml
   signoz:
     !!merge <<: *db-depend
-    image: signoz/signoz:${VERSION:-v0.115.0}
+    image: signoz/signoz:${VERSION:-v0.114.1}
     container_name: signoz
     ports:
       - "8080:8080" # signoz port

deploy/docker/docker-compose.yaml

@@ -109,7 +109,7 @@ services:
       # - ../common/clickhouse/storage.xml:/etc/clickhouse-server/config.d/storage.xml
   signoz:
     !!merge <<: *db-depend
-    image: signoz/signoz:${VERSION:-v0.115.0}
+    image: signoz/signoz:${VERSION:-v0.114.1}
     container_name: signoz
     ports:
       - "8080:8080" # signoz port

docs/api/openapi.yml

@@ -1768,19 +1768,19 @@ components:
         createdAt:
           format: date-time
           type: string
-        expiresAt:
+        expires_at:
           minimum: 0
           type: integer
         id:
           type: string
         key:
           type: string
-        lastObservedAt:
+        last_used:
           format: date-time
           type: string
         name:
           type: string
-        serviceAccountId:
+        service_account_id:
           type: string
         updatedAt:
           format: date-time
@@ -1788,9 +1788,9 @@ components:
       required:
       - id
       - key
-      - expiresAt
-      - lastObservedAt
-      - serviceAccountId
+      - expires_at
+      - last_used
+      - service_account_id
       type: object
     ServiceaccounttypesGettableFactorAPIKeyWithKey:
       properties:
@@ -1804,14 +1804,14 @@ components:
       type: object
     ServiceaccounttypesPostableFactorAPIKey:
       properties:
-        expiresAt:
+        expires_at:
           minimum: 0
           type: integer
         name:
           type: string
       required:
       - name
-      - expiresAt
+      - expires_at
       type: object
     ServiceaccounttypesPostableServiceAccount:
       properties:
@@ -1833,16 +1833,13 @@ components:
         createdAt:
           format: date-time
           type: string
-        deletedAt:
-          format: date-time
-          type: string
         email:
           type: string
         id:
           type: string
         name:
           type: string
-        orgId:
+        orgID:
           type: string
         roles:
           items:
@@ -1859,19 +1856,18 @@ components:
       - email
       - roles
       - status
-      - orgId
-      - deletedAt
+      - orgID
       type: object
     ServiceaccounttypesUpdatableFactorAPIKey:
       properties:
-        expiresAt:
+        expires_at:
           minimum: 0
           type: integer
         name:
           type: string
       required:
       - name
-      - expiresAt
+      - expires_at
       type: object
     ServiceaccounttypesUpdatableServiceAccount:
       properties:

ee/authz/openfgaschema/base.fga

@@ -2,45 +2,39 @@ module base
 
 type organisation 
   relations
-    define read: [user, serviceaccount, role#assignee]
-    define update: [user, serviceaccount, role#assignee]
+    define read: [user, role#assignee]
+    define update: [user, role#assignee]
 
 type user
   relations
-    define read: [user, serviceaccount, role#assignee]
-    define update: [user, serviceaccount, role#assignee]
-    define delete: [user, serviceaccount, role#assignee]
-
-type serviceaccount 
-  relations
-    define read: [user, serviceaccount, role#assignee]
-    define update: [user, serviceaccount, role#assignee]
-    define delete: [user, serviceaccount, role#assignee]  
+    define read: [user, role#assignee]
+    define update: [user, role#assignee]
+    define delete: [user, role#assignee]
 
 type anonymous
 
 type role 
   relations
-    define assignee: [user, serviceaccount, anonymous]
+    define assignee: [user, anonymous]
 
-    define read: [user, serviceaccount, role#assignee]
-    define update: [user, serviceaccount, role#assignee]
-    define delete: [user, serviceaccount, role#assignee]
+    define read: [user, role#assignee]
+    define update: [user, role#assignee]
+    define delete: [user, role#assignee]
 
 type metaresources
   relations
-    define create: [user, serviceaccount, role#assignee]
-    define list: [user, serviceaccount, role#assignee]
+    define create: [user, role#assignee]
+    define list: [user, role#assignee]
 
 type metaresource
   relations
-      define read: [user, serviceaccount, anonymous, role#assignee]
-      define update: [user, serviceaccount, role#assignee]
-      define delete: [user, serviceaccount, role#assignee]
+      define read: [user, anonymous, role#assignee]
+      define update: [user, role#assignee]
+      define delete: [user, role#assignee]
 
-      define block: [user, serviceaccount, role#assignee]
+      define block: [user, role#assignee]
 
 
 type telemetryresource
   relations
-      define read: [user, serviceaccount, role#assignee]
+      define read: [user, role#assignee]

frontend/src/AppRoutes/Private.tsx

@@ -1,6 +1,6 @@
 import { ReactChild, useCallback, useEffect, useMemo, useState } from 'react';
 import { useQuery } from 'react-query';
-import { matchPath, Redirect, useLocation } from 'react-router-dom';
+import { matchPath, useLocation } from 'react-router-dom';
 import getLocalStorageApi from 'api/browser/localstorage/get';
 import setLocalStorageApi from 'api/browser/localstorage/set';
 import getAll from 'api/v1/user/get';
@@ -128,7 +128,6 @@ function PrivateRoute({ children }: PrivateRouteProps): JSX.Element {
 			isAdmin &&
 			(path === ROUTES.SETTINGS ||
 				path === ROUTES.ORG_SETTINGS ||
-				path === ROUTES.MEMBERS_SETTINGS ||
 				path === ROUTES.BILLING ||
 				path === ROUTES.MY_SETTINGS);
 
@@ -237,7 +236,13 @@ function PrivateRoute({ children }: PrivateRouteProps): JSX.Element {
 	useEffect(() => {
 		// if it is an old route navigate to the new route
 		if (isOldRoute) {
-			// this will be handled by the redirect component below
+			const redirectUrl = oldNewRoutesMapping[pathname];
+
+			const newLocation = {
+				...location,
+				pathname: redirectUrl,
+			};
+			history.replace(newLocation);
 			return;
 		}
 
@@ -291,19 +296,6 @@ function PrivateRoute({ children }: PrivateRouteProps): JSX.Element {
 		}
 	}, [isLoggedInState, pathname, user, isOldRoute, currentRoute, location]);
 
-	if (isOldRoute) {
-		const redirectUrl = oldNewRoutesMapping[pathname];
-		return (
-			<Redirect
-				to={{
-					pathname: redirectUrl,
-					search: location.search,
-					hash: location.hash,
-				}}
-			/>
-		);
-	}
-
 	// NOTE: disabling this rule as there is no need to have div
 	return <>{children}</>;
 }

frontend/src/AppRoutes/index.tsx

@@ -29,6 +29,7 @@ import posthog from 'posthog-js';
 import { useAppContext } from 'providers/App/App';
 import { IUser } from 'providers/App/types';
 import { CmdKProvider } from 'providers/cmdKProvider';
+import { DashboardProvider } from 'providers/Dashboard/Dashboard';
 import { ErrorModalProvider } from 'providers/ErrorModalProvider';
 import { PreferenceContextProvider } from 'providers/preferences/context/PreferenceContextProvider';
 import { QueryBuilderProvider } from 'providers/QueryBuilder';
@@ -320,19 +321,6 @@ function App(): JSX.Element {
 					// Session Replay
 					replaysSessionSampleRate: 0.1, // This sets the sample rate at 10%. You may want to change it to 100% while in development and then sample at a lower rate in production.
 					replaysOnErrorSampleRate: 1.0, // If you're not already sampling the entire session, change the sample rate to 100% when sampling sessions where errors occur.
-					beforeSend(event) {
-						const sessionReplayUrl = posthog.get_session_replay_url?.({
-							withTimestamp: true,
-						});
-						if (sessionReplayUrl) {
-							// eslint-disable-next-line no-param-reassign
-							event.contexts = {
-								...event.contexts,
-								posthog: { session_replay_url: sessionReplayUrl },
-							};
-						}
-						return event;
-					},
 				});
 
 				setIsSentryInitialized(true);
@@ -383,26 +371,28 @@ function App(): JSX.Element {
 									<PrivateRoute>
 										<ResourceProvider>
 											<QueryBuilderProvider>
-												<KeyboardHotkeysProvider>
-													<AppLayout>
-														<PreferenceContextProvider>
-															<Suspense fallback={<Spinner size="large" tip="Loading..." />}>
-																<Switch>
-																	{routes.map(({ path, component, exact }) => (
-																		<Route
-																			key={`${path}`}
-																			exact={exact}
-																			path={path}
-																			component={component}
-																		/>
-																	))}
-																	<Route exact path="/" component={Home} />
-																	<Route path="*" component={NotFound} />
-																</Switch>
-															</Suspense>
-														</PreferenceContextProvider>
-													</AppLayout>
-												</KeyboardHotkeysProvider>
+												<DashboardProvider>
+													<KeyboardHotkeysProvider>
+														<AppLayout>
+															<PreferenceContextProvider>
+																<Suspense fallback={<Spinner size="large" tip="Loading..." />}>
+																	<Switch>
+																		{routes.map(({ path, component, exact }) => (
+																			<Route
+																				key={`${path}`}
+																				exact={exact}
+																				path={path}
+																				component={component}
+																			/>
+																		))}
+																		<Route exact path="/" component={Home} />
+																		<Route path="*" component={NotFound} />
+																	</Switch>
+																</Suspense>
+															</PreferenceContextProvider>
+														</AppLayout>
+													</KeyboardHotkeysProvider>
+												</DashboardProvider>
 											</QueryBuilderProvider>
 										</ResourceProvider>
 									</PrivateRoute>

frontend/src/api/generated/services/sigNoz.schemas.ts

@@ -2100,7 +2100,7 @@ export interface ServiceaccounttypesFactorAPIKeyDTO {
 	 * @type integer
 	 * @minimum 0
 	 */
-	expiresAt: number;
+	expires_at: number;
 	/**
 	 * @type string
 	 */
@@ -2113,7 +2113,7 @@ export interface ServiceaccounttypesFactorAPIKeyDTO {
 	 * @type string
 	 * @format date-time
 	 */
-	lastObservedAt: Date;
+	last_used: Date;
 	/**
 	 * @type string
 	 */
@@ -2121,7 +2121,7 @@ export interface ServiceaccounttypesFactorAPIKeyDTO {
 	/**
 	 * @type string
 	 */
-	serviceAccountId: string;
+	service_account_id: string;
 	/**
 	 * @type string
 	 * @format date-time
@@ -2145,7 +2145,7 @@ export interface ServiceaccounttypesPostableFactorAPIKeyDTO {
 	 * @type integer
 	 * @minimum 0
 	 */
-	expiresAt: number;
+	expires_at: number;
 	/**
 	 * @type string
 	 */
@@ -2173,11 +2173,6 @@ export interface ServiceaccounttypesServiceAccountDTO {
 	 * @format date-time
 	 */
 	createdAt?: Date;
-	/**
-	 * @type string
-	 * @format date-time
-	 */
-	deletedAt: Date;
 	/**
 	 * @type string
 	 */
@@ -2193,7 +2188,7 @@ export interface ServiceaccounttypesServiceAccountDTO {
 	/**
 	 * @type string
 	 */
-	orgId: string;
+	orgID: string;
 	/**
 	 * @type array
 	 */
@@ -2214,7 +2209,7 @@ export interface ServiceaccounttypesUpdatableFactorAPIKeyDTO {
 	 * @type integer
 	 * @minimum 0
 	 */
-	expiresAt: number;
+	expires_at: number;
 	/**
 	 * @type string
 	 */

frontend/src/components/TimelineV3/TimelineV3.styles.scss

@@ -0,0 +1,4 @@
+.timeline-v3-container {
+	// flex: 1;
+	overflow: visible;
+}

frontend/src/components/TimelineV3/TimelineV3.tsx

@@ -0,0 +1,87 @@
+import { useEffect, useState } from 'react';
+import { useMeasure } from 'react-use';
+import { useIsDarkMode } from 'hooks/useDarkMode';
+
+import {
+	getIntervals,
+	getMinimumIntervalsBasedOnWidth,
+	Interval,
+} from './utils';
+
+import './TimelineV3.styles.scss';
+
+interface ITimelineV3Props {
+	startTimestamp: number;
+	endTimestamp: number;
+	timelineHeight: number;
+	offsetTimestamp: number;
+}
+
+function TimelineV3(props: ITimelineV3Props): JSX.Element {
+	const {
+		startTimestamp,
+		endTimestamp,
+		timelineHeight,
+		offsetTimestamp,
+	} = props;
+	const [intervals, setIntervals] = useState<Interval[]>([]);
+	const [ref, { width }] = useMeasure<HTMLDivElement>();
+	const isDarkMode = useIsDarkMode();
+
+	useEffect(() => {
+		const spread = endTimestamp - startTimestamp;
+		if (spread < 0) {
+			return;
+		}
+
+		const minIntervals = getMinimumIntervalsBasedOnWidth(width);
+		const intervalisedSpread = (spread / minIntervals) * 1.0;
+		const intervals = getIntervals(intervalisedSpread, spread, offsetTimestamp);
+
+		setIntervals(intervals);
+	}, [startTimestamp, endTimestamp, width, offsetTimestamp]);
+
+	if (endTimestamp < startTimestamp) {
+		console.error(
+			'endTimestamp cannot be less than startTimestamp',
+			startTimestamp,
+			endTimestamp,
+		);
+		return <div />;
+	}
+
+	const strokeColor = isDarkMode ? ' rgb(192,193,195,0.8)' : 'black';
+
+	return (
+		<div ref={ref as never} className="timeline-v3-container">
+			<svg
+				width={width}
+				height={timelineHeight * 2.5}
+				xmlns="http://www.w3.org/2000/svg"
+				overflow="visible"
+			>
+				{intervals &&
+					intervals.length > 0 &&
+					intervals.map((interval, index) => (
+						<g
+							transform={`translate(${(interval.percentage * width) / 100},0)`}
+							key={`${interval.percentage + interval.label + index}`}
+							textAnchor="middle"
+							fontSize="0.6rem"
+						>
+							<text
+								x={index === intervals.length - 1 ? -10 : 0}
+								y={timelineHeight * 2}
+								fill={strokeColor}
+							>
+								{interval.label}
+							</text>
+							<line y1={0} y2={timelineHeight} stroke={strokeColor} strokeWidth="1" />
+						</g>
+					))}
+			</svg>
+		</div>
+	);
+}
+
+export default TimelineV3;

frontend/src/components/TimelineV3/utils.ts

@@ -0,0 +1,93 @@
+import {
+	IIntervalUnit,
+	Interval,
+	INTERVAL_UNITS,
+	resolveTimeFromInterval,
+} from 'components/TimelineV2/utils';
+import { toFixed } from 'utils/toFixed';
+
+export type { Interval };
+
+/** Fewer intervals than TimelineV2 for a cleaner flamegraph ruler. */
+export function getMinimumIntervalsBasedOnWidth(width: number): number {
+	if (width < 640) {
+		return 3;
+	}
+	if (width < 768) {
+		return 4;
+	}
+	if (width < 1024) {
+		return 5;
+	}
+	return 6;
+}
+
+/**
+ * Computes timeline intervals with offset-aware labels.
+ * Labels reflect absolute time from trace start (offsetTimestamp + elapsed),
+ * so when zoomed into a window, the first tick shows e.g. "50ms" not "0ms".
+ */
+export function getIntervals(
+	intervalSpread: number,
+	baseSpread: number,
+	offsetTimestamp: number,
+): Interval[] {
+	const integerPartString = intervalSpread.toString().split('.')[0];
+	const integerPartLength = integerPartString.length;
+
+	const intervalSpreadNormalized =
+		intervalSpread < 1.0
+			? intervalSpread
+			: Math.floor(Number(integerPartString) / 10 ** (integerPartLength - 1)) *
+			  10 ** (integerPartLength - 1);
+
+	// Unit must suit both: (1) tick granularity (intervalSpread) and (2) label magnitude
+	// (offsetTimestamp). When zoomed deep into a trace, labels show offsetTimestamp + elapsed,
+	// so we must pick a unit where that value is readable (e.g. "500.00s" not "500000.00ms").
+	const valueForUnitSelection = Math.max(offsetTimestamp, intervalSpread);
+	let intervalUnit: IIntervalUnit = INTERVAL_UNITS[0];
+	for (let idx = INTERVAL_UNITS.length - 1; idx >= 0; idx -= 1) {
+		const standardInterval = INTERVAL_UNITS[idx];
+		if (valueForUnitSelection * standardInterval.multiplier >= 1) {
+			intervalUnit = INTERVAL_UNITS[idx];
+			break;
+		}
+	}
+
+	const intervals: Interval[] = [
+		{
+			label: `${toFixed(
+				resolveTimeFromInterval(offsetTimestamp, intervalUnit),
+				2,
+			)}${intervalUnit.name}`,
+			percentage: 0,
+		},
+	];
+
+	let tempBaseSpread = baseSpread;
+	let elapsedIntervals = 0;
+
+	while (tempBaseSpread && intervals.length < 20) {
+		let intervalTime: number;
+
+		if (tempBaseSpread <= 1.5 * intervalSpreadNormalized) {
+			intervalTime = elapsedIntervals + tempBaseSpread;
+			tempBaseSpread = 0;
+		} else {
+			intervalTime = elapsedIntervals + intervalSpreadNormalized;
+			tempBaseSpread -= intervalSpreadNormalized;
+		}
+
+		elapsedIntervals = intervalTime;
+		const labelTime = offsetTimestamp + intervalTime;
+
+		intervals.push({
+			label: `${toFixed(resolveTimeFromInterval(labelTime, intervalUnit), 2)}${
+				intervalUnit.name
+			}`,
+			percentage: (intervalTime / baseSpread) * 100,
+		});
+	}
+
+	return intervals;
+}

frontend/src/constants/theme.ts

@@ -33,6 +33,125 @@ const themeColors = {
 		purple: '#800080',
 		cyan: '#00FFFF',
 	},
+	traceDetailColorsV3: {
+		// Blues
+		dodgerBlue: '#2F80ED',
+		royalBlue: '#3366E6',
+		steelBlue: '#4682B4',
+
+		// Teals / Cyans
+		turquoise: '#00CEC9',
+		lagoon: '#1ABC9C',
+		cyanBright: '#22A6F2',
+
+		// Greens
+		emeraldGreen: '#27AE60',
+		mediumSeaGreen: '#3CB371',
+		limeGreen: '#A3E635',
+
+		// Yellows / Golds
+		festivalYellow: '#F2C94C',
+		sunflower: '#FFD93D',
+		warmAmber: '#FFCA28',
+
+		// Purples / Violets
+		mediumPurple: '#BB6BD9',
+		royalPurple: '#9B51E0',
+		orchid: '#DA77F2',
+
+		// Accent
+		neonViolet: '#C77DFF',
+		electricPurple: '#6C5CE7',
+		arcticBlue: '#48DBFB',
+
+		// Blues extended
+		blue1: '#1F63E0',
+		blue2: '#3A7AED',
+		blue3: '#5A9DF5',
+		blue4: '#2874A6',
+		blue5: '#2E86C1',
+		blue6: '#3498DB',
+
+		// Cyans
+		cyan1: '#00B0AA',
+		cyan2: '#33D6C2',
+		cyan3: '#66E9DA',
+
+		// Greens extended
+		green1: '#1E8449',
+		green2: '#2ECC71',
+		green3: '#58D68D',
+		green4: '#229954',
+		green5: '#27AE60',
+		green6: '#52BE80',
+
+		// Forest
+		forest1: '#27AE60',
+		forest2: '#2ECC71',
+		forest3: '#58D68D',
+
+		// Lime
+		lime1: '#A3E635',
+		lime2: '#B9F18D',
+		lime3: '#D4FFB0',
+
+		// Teals
+		teal1: '#009688',
+		teal2: '#1ABC9C',
+		teal3: '#48C9B0',
+		teal4: '#1ABC9C',
+		teal5: '#48C9B0',
+		teal6: '#76D7C4',
+
+		// Yellows
+		yellow1: '#F1C40F',
+		yellow2: '#F7DC6F',
+		yellow3: '#F9E79F',
+
+		// Gold
+		gold1: '#F39C12',
+		gold2: '#F1C40F',
+		gold3: '#F7DC6F',
+		gold4: '#B7950B',
+		gold5: '#F1C40F',
+		gold6: '#F4D03F',
+
+		// Mustard
+		mustard1: '#F1C40F',
+		mustard2: '#F7DC6F',
+		mustard3: '#F9E79F',
+
+		// Aqua
+		aqua1: '#00BFFF',
+		aqua2: '#1E90FF',
+		aqua3: '#63B8FF',
+
+		// Purple extended
+		purple1: '#8E44AD',
+		purple2: '#9B59B6',
+		purple3: '#BB8FCE',
+
+		violet1: '#8E44AD',
+		violet2: '#9B59B6',
+		violet3: '#BB8FCE',
+		violet4: '#7D3C98',
+		violet5: '#8E44AD',
+		violet6: '#9B59B6',
+
+		// Lavender
+		lavender1: '#9B59B6',
+		lavender2: '#AF7AC5',
+		lavender3: '#C39BD3',
+
+		// Oranges (safe ones, not red-ish)
+		orange4: '#D35400',
+		orange5: '#E67E22',
+		orange6: '#EB984E',
+
+		coral1: '#E67E22',
+		coral2: '#F39C12',
+		coral3: '#F5B041',
+	},
 	chartcolors: {
 		// Blues (3)
 		dodgerBlue: '#2F80ED',

frontend/src/container/CustomDomainSettings/CustomDomainEditModal.tsx

@@ -30,15 +30,14 @@ export default function CustomDomainEditModal({
 	onClearError,
 	onSubmit,
 }: CustomDomainEditModalProps): JSX.Element {
-	const initialSubdomain = customDomainSubdomain ?? '';
-	const [value, setValue] = useState(initialSubdomain);
+	const [value, setValue] = useState(customDomainSubdomain ?? '');
 	const [validationError, setValidationError] = useState<string | null>(null);
 
 	useEffect(() => {
 		if (isOpen) {
-			setValue(initialSubdomain);
+			setValue(customDomainSubdomain ?? '');
 		}
-	}, [isOpen, initialSubdomain]);
+	}, [isOpen, customDomainSubdomain]);
 
 	const handleClose = (): void => {
 		setValidationError(null);
@@ -59,11 +58,6 @@ export default function CustomDomainEditModal({
 	};
 
 	const handleSubmit = (): void => {
-		if (value === initialSubdomain) {
-			setValidationError('Input is unchanged');
-			return;
-		}
-
 		if (!value) {
 			setValidationError('This field is required');
 			return;
@@ -90,7 +84,7 @@ export default function CustomDomainEditModal({
 
 	const hasError = Boolean(errorMessage);
 
-	const statusIcon = ((): JSX.Element | null => {
+	const statusIcon = ((): JSX.Element => {
 		if (isLoading) {
 			return (
 				<LoaderCircle size={16} className="animate-spin edit-modal-status-icon" />
@@ -101,9 +95,7 @@ export default function CustomDomainEditModal({
 			return <CircleAlert size={16} color={Color.BG_CHERRY_500} />;
 		}
 
-		return value && value.length >= 3 ? (
-			<CircleCheck size={16} color={Color.BG_FOREST_500} />
-		) : null;
+		return <CircleCheck size={16} color={Color.BG_FOREST_500} />;
 	})();
 
 	return (
@@ -197,7 +189,7 @@ export default function CustomDomainEditModal({
 							color="primary"
 							className="edit-modal-apply-btn"
 							onClick={handleSubmit}
-							disabled={isLoading || value === initialSubdomain}
+							disabled={isLoading}
 							loading={isLoading}
 						>
 							Apply Changes

frontend/src/container/CustomDomainSettings/CustomDomainSettings.styles.scss

@@ -81,10 +81,6 @@
 		padding-left: 26px;
 	}
 
-	.custom-domain-card-meta-row.workspace-name-hidden {
-		padding-left: 0;
-	}
-
 	.custom-domain-card-meta-timezone {
 		display: inline-flex;
 		align-items: center;
@@ -121,6 +117,32 @@
 		background: var(--l2-border);
 		margin: 0;
 	}
+
+	.custom-domain-card-bottom {
+		display: flex;
+		align-items: center;
+		gap: var(--spacing-5);
+		padding: var(--padding-3);
+	}
+
+	.custom-domain-card-license {
+		color: var(--l1-foreground);
+		font-size: var(--paragraph-base-400-font-size);
+		line-height: var(--line-height-20);
+		letter-spacing: -0.07px;
+	}
+
+	.custom-domain-plan-badge {
+		display: inline-flex;
+		align-items: center;
+		padding: 0 2px;
+		border-radius: 2px;
+		background: var(--l2-background);
+		color: var(--l2-foreground);
+		font-family: 'SF Mono', 'Fira Code', monospace;
+		font-size: var(--paragraph-base-400-font-size);
+		line-height: var(--line-height-20);
+	}
 }
 
 .workspace-url-trigger {

frontend/src/container/CustomDomainSettings/CustomDomainSettings.tsx

@@ -69,9 +69,8 @@ function DomainUpdateToast({
 }
 
 export default function CustomDomainSettings(): JSX.Element {
-	const { org } = useAppContext();
+	const { org, activeLicense } = useAppContext();
 	const { timezone } = useTimezone();
-
 	const [isEditModalOpen, setIsEditModalOpen] = useState(false);
 	const [isPollingEnabled, setIsPollingEnabled] = useState(false);
 	const [hosts, setHosts] = useState<ZeustypesHostDTO[] | null>(null);
@@ -176,8 +175,7 @@ export default function CustomDomainSettings(): JSX.Element {
 		[hosts, activeHost],
 	);
 
-	const workspaceName =
-		org?.[0]?.displayName || customDomainSubdomain || activeHost?.name;
+	const planName = activeLicense?.plan?.name;
 
 	if (isLoadingHosts) {
 		return (
@@ -193,97 +191,105 @@ export default function CustomDomainSettings(): JSX.Element {
 
 	return (
 		<>
-			<div className="custom-domain-card-top">
-				<div className="custom-domain-card-info">
-					{!!workspaceName && (
+			<div className="custom-domain-card">
+				<div className="custom-domain-card-top">
+					<div className="custom-domain-card-info">
 						<div className="custom-domain-card-name-row">
 							<span className="beacon" />
-							<span className="custom-domain-card-org-name">{workspaceName}</span>
+							<span className="custom-domain-card-org-name">
+								{org?.[0]?.displayName ? org?.[0]?.displayName : customDomainSubdomain}
+							</span>
 						</div>
-					)}
 
-					<div
-						className={`custom-domain-card-meta-row ${
-							!workspaceName ? 'workspace-name-hidden' : ''
-						}`}
-					>
-						<Dropdown
-							trigger={['click']}
-							dropdownRender={(): JSX.Element => (
-								<div className="workspace-url-dropdown">
-									<span className="workspace-url-dropdown-header">
-										All Workspace URLs
-									</span>
-									<div className="workspace-url-dropdown-divider" />
-									{sortedHosts.map((host) => {
-										const isActive = host.name === activeHost?.name;
-										return (
-											<a
-												key={host.name}
-												href={host.url}
-												target="_blank"
-												rel="noopener noreferrer"
-												className={`workspace-url-dropdown-item${
-													isActive ? ' workspace-url-dropdown-item--active' : ''
-												}`}
-											>
-												<span className="workspace-url-dropdown-item-label">
-													{stripProtocol(host.url ?? '')}
-												</span>
-												{isActive ? (
-													<Check size={14} className="workspace-url-dropdown-item-check" />
-												) : (
-													<ExternalLink
-														size={12}
-														className="workspace-url-dropdown-item-external"
-													/>
-												)}
-											</a>
-										);
-									})}
-								</div>
-							)}
-						>
-							<Button
-								type="button"
-								size="xs"
-								className="workspace-url-trigger"
-								disabled={isFetchingHosts}
+						<div className="custom-domain-card-meta-row">
+							<Dropdown
+								trigger={['click']}
+								dropdownRender={(): JSX.Element => (
+									<div className="workspace-url-dropdown">
+										<span className="workspace-url-dropdown-header">
+											All Workspace URLs
+										</span>
+										<div className="workspace-url-dropdown-divider" />
+										{sortedHosts.map((host) => {
+											const isActive = host.name === activeHost?.name;
+											return (
+												<a
+													key={host.name}
+													href={host.url}
+													target="_blank"
+													rel="noopener noreferrer"
+													className={`workspace-url-dropdown-item${
+														isActive ? ' workspace-url-dropdown-item--active' : ''
+													}`}
+												>
+													<span className="workspace-url-dropdown-item-label">
+														{stripProtocol(host.url ?? '')}
+													</span>
+													{isActive ? (
+														<Check size={14} className="workspace-url-dropdown-item-check" />
+													) : (
+														<ExternalLink
+															size={12}
+															className="workspace-url-dropdown-item-external"
+														/>
+													)}
+												</a>
+											);
+										})}
+									</div>
+								)}
 							>
-								<Link2 size={12} />
-								<span>{stripProtocol(activeHost?.url ?? '')}</span>
-								<ChevronDown size={12} />
-							</Button>
-						</Dropdown>
-						<span className="custom-domain-card-meta-timezone">
-							<Clock size={11} />
-							{timezone.offset}
-						</span>
+								<Button
+									type="button"
+									size="xs"
+									className="workspace-url-trigger"
+									disabled={isFetchingHosts}
+								>
+									<Link2 size={12} />
+									<span>{stripProtocol(activeHost?.url ?? '')}</span>
+									<ChevronDown size={12} />
+								</Button>
+							</Dropdown>
+							<span className="custom-domain-card-meta-timezone">
+								<Clock size={11} />
+								{timezone.offset}
+							</span>
+						</div>
 					</div>
+
+					<Button
+						variant="solid"
+						size="sm"
+						className="custom-domain-edit-button"
+						prefixIcon={<FilePenLine size={12} />}
+						disabled={isFetchingHosts || isPollingEnabled}
+						onClick={(): void => setIsEditModalOpen(true)}
+					>
+						Edit workspace link
+					</Button>
 				</div>
 
-				<Button
-					variant="solid"
-					size="sm"
-					className="custom-domain-edit-button"
-					prefixIcon={<FilePenLine size={12} />}
-					disabled={isFetchingHosts || isPollingEnabled}
-					onClick={(): void => setIsEditModalOpen(true)}
-				>
-					Edit workspace link
-				</Button>
-			</div>
+				{isPollingEnabled && (
+					<Callout
+						type="info"
+						showIcon
+						className="custom-domain-callout"
+						size="small"
+						icon={<SolidAlertCircle size={13} color="primary" />}
+						message={`Updating your URL to ⎯ ${customDomainSubdomain}.${dnsSuffix}. This may take a few mins.`}
+					/>
+				)}
 
-			{isPollingEnabled && (
-				<Callout
-					type="info"
-					showIcon
-					className="custom-domain-callout"
-					size="small"
-					icon={<SolidAlertCircle size={13} color="primary" />}
-					message={`Updating your URL to ⎯ ${customDomainSubdomain}.${dnsSuffix}. This may take a few mins.`}
-				/>
-			)}
+				<div className="custom-domain-card-divider" />
+
+				<div className="custom-domain-card-bottom">
+					<span className="beacon" />
+					<span className="custom-domain-card-license">
+						{planName && <code className="custom-domain-plan-badge">{planName}</code>}{' '}
+						license is currently active
+					</span>
+				</div>
+			</div>
 
 			<CustomDomainEditModal
 				isOpen={isEditModalOpen}

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

@@ -239,87 +239,4 @@ describe('CustomDomainSettings', () => {
 		const { container } = render(toastRenderer('test-id'));
 		expect(container).toHaveTextContent(/myteam\.test\.cloud/i);
 	});
-
-	describe('Workspace Name rendering', () => {
-		it('renders org displayName when available from appContext', async () => {
-			server.use(
-				rest.get(ZEUS_HOSTS_ENDPOINT, (_, res, ctx) =>
-					res(ctx.status(200), ctx.json(mockHostsResponse)),
-				),
-			);
-
-			render(<CustomDomainSettings />, undefined, {
-				appContextOverrides: {
-					org: [{ id: 'xyz', displayName: 'My Org Name', createdAt: 0 }],
-				},
-			});
-
-			expect(await screen.findByText('My Org Name')).toBeInTheDocument();
-		});
-
-		it('falls back to customDomainSubdomain when org displayName is missing', async () => {
-			server.use(
-				rest.get(ZEUS_HOSTS_ENDPOINT, (_, res, ctx) =>
-					res(ctx.status(200), ctx.json(mockHostsResponse)),
-				),
-			);
-
-			render(<CustomDomainSettings />, undefined, {
-				appContextOverrides: { org: [] },
-			});
-
-			expect(await screen.findByText('custom-host')).toBeInTheDocument();
-		});
-
-		it('falls back to activeHost.name when neither org name nor custom domain exists', async () => {
-			const onlyDefaultHostResponse = {
-				...mockHostsResponse,
-				data: {
-					...mockHostsResponse.data,
-					hosts: mockHostsResponse.data.hosts
-						? [mockHostsResponse.data.hosts[0]]
-						: [],
-				},
-			};
-
-			server.use(
-				rest.get(ZEUS_HOSTS_ENDPOINT, (_, res, ctx) =>
-					res(ctx.status(200), ctx.json(onlyDefaultHostResponse)),
-				),
-			);
-
-			render(<CustomDomainSettings />, undefined, {
-				appContextOverrides: { org: [] },
-			});
-
-			// 'accepted-starfish' is the default host's name
-			expect(await screen.findByText('accepted-starfish')).toBeInTheDocument();
-		});
-
-		it('does not render the card name row if workspaceName is totally falsy', async () => {
-			const emptyHostsResponse = {
-				...mockHostsResponse,
-				data: {
-					...mockHostsResponse.data,
-					hosts: [],
-				},
-			};
-
-			server.use(
-				rest.get(ZEUS_HOSTS_ENDPOINT, (_, res, ctx) =>
-					res(ctx.status(200), ctx.json(emptyHostsResponse)),
-				),
-			);
-
-			const { container } = render(<CustomDomainSettings />, undefined, {
-				appContextOverrides: { org: [] },
-			});
-
-			await screen.findByRole('button', { name: /edit workspace link/i });
-
-			expect(
-				container.querySelector('.custom-domain-card-name-row'),
-			).not.toBeInTheDocument();
-		});
-	});
 });

frontend/src/container/DashboardContainer/DashboardDescription/__tests__/DashboardDescription.test.tsx

@@ -34,6 +34,11 @@ const mockSafeNavigate = jest.fn();
 jest.mock('react-router-dom', () => ({
 	...jest.requireActual('react-router-dom'),
 	useLocation: jest.fn(),
+	useRouteMatch: jest.fn().mockReturnValue({
+		params: {
+			dashboardId: 4,
+		},
+	}),
 }));
 
 jest.mock(
@@ -64,7 +69,7 @@ describe('Dashboard landing page actions header tests', () => {
 		(useLocation as jest.Mock).mockReturnValue(mockLocation);
 		const { getByTestId } = render(
 			<MemoryRouter initialEntries={[DASHBOARD_PATH]}>
-				<DashboardProvider dashboardId="4">
+				<DashboardProvider>
 					<DashboardDescription
 						handle={{
 							active: false,
@@ -105,7 +110,7 @@ describe('Dashboard landing page actions header tests', () => {
 		);
 		const { getByTestId } = render(
 			<MemoryRouter initialEntries={[DASHBOARD_PATH]}>
-				<DashboardProvider dashboardId="4">
+				<DashboardProvider>
 					<DashboardDescription
 						handle={{
 							active: false,
@@ -144,7 +149,7 @@ describe('Dashboard landing page actions header tests', () => {
 
 		const { getByText } = render(
 			<MemoryRouter initialEntries={[DASHBOARD_PATH]}>
-				<DashboardProvider dashboardId="4">
+				<DashboardProvider>
 					<DashboardDescription
 						handle={{
 							active: false,
@@ -193,6 +198,9 @@ describe('Dashboard landing page actions header tests', () => {
 			setPanelMap: jest.fn(),
 			setLayouts: jest.fn(),
 			setSelectedDashboard: jest.fn(),
+			updatedTimeRef: { current: null },
+			toScrollWidgetId: '',
+			setToScrollWidgetId: jest.fn(),
 			updateLocalStorageDashboardVariables: jest.fn(),
 			dashboardQueryRangeCalled: false,
 			setDashboardQueryRangeCalled: jest.fn(),

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

@@ -9,6 +9,7 @@ import {
 } from 'hooks/dashboard/useDashboardVariables';
 import useVariablesFromUrl from 'hooks/dashboard/useVariablesFromUrl';
 import { useDashboard } from 'providers/Dashboard/Dashboard';
+import { initializeDefaultVariables } from 'providers/Dashboard/initializeDefaultVariables';
 import { updateDashboardVariablesStore } from 'providers/Dashboard/store/dashboardVariables/dashboardVariablesStore';
 import {
 	enqueueDescendantsOfVariable,
@@ -29,7 +30,7 @@ function DashboardVariableSelection(): JSX.Element | null {
 		updateLocalStorageDashboardVariables,
 	} = useDashboard();
 
-	const { updateUrlVariable } = useVariablesFromUrl();
+	const { updateUrlVariable, getUrlVariables } = useVariablesFromUrl();
 
 	const { dashboardVariables } = useDashboardVariables();
 	const dashboardId = useDashboardVariablesSelector(
@@ -49,6 +50,15 @@ function DashboardVariableSelection(): JSX.Element | null {
 		(state) => state.globalTime,
 	);
 
+	useEffect(() => {
+		// Initialize variables with default values if not in URL
+		initializeDefaultVariables(
+			dashboardVariables,
+			getUrlVariables,
+			updateUrlVariable,
+		);
+	}, [getUrlVariables, updateUrlVariable, dashboardVariables]);
+
 	// Memoize the order key to avoid unnecessary triggers
 	const variableOrderKey = useMemo(() => {
 		const queryVariableOrderKey = dependencyData?.order?.join(',') ?? '';

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

@@ -1,9 +1,9 @@
 import { renderHook } from '@testing-library/react';
-import { useScrollToWidgetIdStore } from 'providers/Dashboard/helpers/scrollToWidgetIdHelper';
+import { useDashboard } from 'providers/Dashboard/Dashboard';
 
 import { useScrollWidgetIntoView } from '../useScrollWidgetIntoView';
 
-jest.mock('providers/Dashboard/helpers/scrollToWidgetIdHelper');
+jest.mock('providers/Dashboard/Dashboard');
 
 type MockHTMLElement = {
 	scrollIntoView: jest.Mock;
@@ -18,35 +18,25 @@ function createMockElement(): MockHTMLElement {
 }
 
 describe('useScrollWidgetIntoView', () => {
-	const mockedUseScrollToWidgetIdStore = useScrollToWidgetIdStore as jest.MockedFunction<
-		typeof useScrollToWidgetIdStore
+	const mockedUseDashboard = useDashboard as jest.MockedFunction<
+		typeof useDashboard
 	>;
 
-	let mockElement: MockHTMLElement;
-	let ref: React.RefObject<HTMLDivElement>;
-	let setToScrollWidgetId: jest.Mock;
-
-	function mockStore(toScrollWidgetId: string): void {
-		const storeState = { toScrollWidgetId, setToScrollWidgetId };
-		mockedUseScrollToWidgetIdStore.mockImplementation(
-			(selector) =>
-				selector(
-					(storeState as unknown) as Parameters<typeof selector>[0],
-				) as ReturnType<typeof useScrollToWidgetIdStore>,
-		);
-	}
-
 	beforeEach(() => {
 		jest.clearAllMocks();
-		mockElement = createMockElement();
-		ref = ({
-			current: mockElement,
-		} as unknown) as React.RefObject<HTMLDivElement>;
-		setToScrollWidgetId = jest.fn();
 	});
 
 	it('scrolls into view and focuses when toScrollWidgetId matches widget id', () => {
-		mockStore('widget-id');
+		const setToScrollWidgetId = jest.fn();
+		const mockElement = createMockElement();
+		const ref = ({
+			current: mockElement,
+		} as unknown) as React.RefObject<HTMLDivElement>;
+
+		mockedUseDashboard.mockReturnValue(({
+			toScrollWidgetId: 'widget-id',
+			setToScrollWidgetId,
+		} as unknown) as ReturnType<typeof useDashboard>);
 
 		renderHook(() => useScrollWidgetIntoView('widget-id', ref));
 
@@ -59,7 +49,16 @@ describe('useScrollWidgetIntoView', () => {
 	});
 
 	it('does nothing when toScrollWidgetId does not match widget id', () => {
-		mockStore('other-widget');
+		const setToScrollWidgetId = jest.fn();
+		const mockElement = createMockElement();
+		const ref = ({
+			current: mockElement,
+		} as unknown) as React.RefObject<HTMLDivElement>;
+
+		mockedUseDashboard.mockReturnValue(({
+			toScrollWidgetId: 'other-widget',
+			setToScrollWidgetId,
+		} as unknown) as ReturnType<typeof useDashboard>);
 
 		renderHook(() => useScrollWidgetIntoView('widget-id', ref));
 

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

@@ -1,5 +1,5 @@
 import { RefObject, useEffect } from 'react';
-import { useScrollToWidgetIdStore } from 'providers/Dashboard/helpers/scrollToWidgetIdHelper';
+import { useDashboard } from 'providers/Dashboard/Dashboard';
 
 /**
  * Scrolls the given widget container into view when the dashboard
@@ -11,10 +11,7 @@ export function useScrollWidgetIntoView<T extends HTMLElement>(
 	widgetId: string,
 	widgetContainerRef: RefObject<T>,
 ): void {
-	const toScrollWidgetId = useScrollToWidgetIdStore((s) => s.toScrollWidgetId);
-	const setToScrollWidgetId = useScrollToWidgetIdStore(
-		(s) => s.setToScrollWidgetId,
-	);
+	const { toScrollWidgetId, setToScrollWidgetId } = useDashboard();
 
 	useEffect(() => {
 		if (toScrollWidgetId === widgetId) {

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

@@ -1,4 +1,5 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import { useScrollWidgetIntoView } from 'container/DashboardContainer/visualization/hooks/useScrollWidgetIntoView';
 import { PanelWrapperProps } from 'container/PanelWrapper/panelWrapper.types';
 import { useIsDarkMode } from 'hooks/useDarkMode';
 import { useResizeObserver } from 'hooks/useDimensions';
@@ -33,6 +34,8 @@ function BarPanel(props: PanelWrapperProps): JSX.Element {
 	const isDarkMode = useIsDarkMode();
 	const { timezone } = useTimezone();
 
+	useScrollWidgetIntoView(widget.id, graphRef);
+
 	useEffect((): void => {
 		const { startTime, endTime } = getTimeRange(queryResponse);
 

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

@@ -1,4 +1,5 @@
 import { useMemo, useRef } from 'react';
+import { useScrollWidgetIntoView } from 'container/DashboardContainer/visualization/hooks/useScrollWidgetIntoView';
 import { PanelWrapperProps } from 'container/PanelWrapper/panelWrapper.types';
 import { useIsDarkMode } from 'hooks/useDarkMode';
 import { useResizeObserver } from 'hooks/useDimensions';
@@ -31,6 +32,8 @@ function HistogramPanel(props: PanelWrapperProps): JSX.Element {
 	const isDarkMode = useIsDarkMode();
 	const { timezone } = useTimezone();
 
+	useScrollWidgetIntoView(widget.id, graphRef);
+
 	const config = useMemo(() => {
 		return prepareHistogramPanelConfig({
 			widget,

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

@@ -2,6 +2,7 @@ import { useEffect, useMemo, useRef, useState } from 'react';
 import TimeSeries from 'container/DashboardContainer/visualization/charts/TimeSeries/TimeSeries';
 import ChartManager from 'container/DashboardContainer/visualization/components/ChartManager/ChartManager';
 import { usePanelContextMenu } from 'container/DashboardContainer/visualization/hooks/usePanelContextMenu';
+import { useScrollWidgetIntoView } from 'container/DashboardContainer/visualization/hooks/useScrollWidgetIntoView';
 import { PanelWrapperProps } from 'container/PanelWrapper/panelWrapper.types';
 import { useIsDarkMode } from 'hooks/useDarkMode';
 import { useResizeObserver } from 'hooks/useDimensions';
@@ -32,6 +33,8 @@ function TimeSeriesPanel(props: PanelWrapperProps): JSX.Element {
 	const isDarkMode = useIsDarkMode();
 	const { timezone } = useTimezone();
 
+	useScrollWidgetIntoView(widget.id, graphRef);
+
 	useEffect((): void => {
 		const { startTime, endTime } = getTimeRange(queryResponse);
 

frontend/src/container/GeneralSettings/GeneralSettings.tsx

@@ -10,7 +10,6 @@ import setRetentionApi from 'api/settings/setRetention';
 import setRetentionApiV2 from 'api/settings/setRetentionV2';
 import TextToolTip from 'components/TextToolTip';
 import CustomDomainSettings from 'container/CustomDomainSettings';
-import LicenseKeyRow from 'container/GeneralSettings/LicenseKeyRow/LicenseKeyRow';
 import GeneralSettingsCloud from 'container/GeneralSettingsCloud';
 import useComponentPermission from 'hooks/useComponentPermission';
 import { useGetTenantLicense } from 'hooks/useGetTenantLicense';
@@ -82,7 +81,7 @@ function GeneralSettings({
 		logsTtlValuesPayload,
 	);
 
-	const { user, activeLicense } = useAppContext();
+	const { user } = useAppContext();
 
 	const [setRetentionPermission] = useComponentPermission(
 		['set_retention_period'],
@@ -681,15 +680,7 @@ function GeneralSettings({
 				</span>
 			</div>
 
-			{(showCustomDomainSettings || activeLicense?.key) && (
-				<div className="custom-domain-card">
-					{showCustomDomainSettings && <CustomDomainSettings />}
-					{showCustomDomainSettings && activeLicense?.key && (
-						<div className="custom-domain-card-divider" />
-					)}
-					{activeLicense?.key && <LicenseKeyRow />}
-				</div>
-			)}
+			{showCustomDomainSettings && <CustomDomainSettings />}
 
 			<div className="retention-controls-container">
 				<div className="retention-controls-header">

frontend/src/container/GeneralSettings/LicenseKeyRow/LicenseKeyRow.styles.scss

@@ -1,65 +0,0 @@
-.license-key-row {
-	display: flex;
-	align-items: center;
-	justify-content: space-between;
-	padding: var(--padding-2) var(--padding-3);
-	gap: var(--spacing-5);
-
-	&__left {
-		display: inline-flex;
-		align-items: center;
-		gap: 12px;
-		color: var(--l2-foreground);
-
-		svg {
-			flex-shrink: 0;
-		}
-	}
-
-	&__label {
-		color: var(--l2-foreground);
-		font-size: var(--paragraph-base-400-font-size);
-		line-height: var(--line-height-20);
-		letter-spacing: -0.07px;
-		flex-shrink: 0;
-	}
-
-	&__value {
-		display: inline-flex;
-		align-items: stretch;
-	}
-
-	&__code {
-		display: inline-flex;
-		align-items: center;
-		padding: 1px 2px;
-		border-radius: 2px 0 0 2px;
-		background: var(--l3-background);
-		border: 1px solid var(--l2-border);
-		color: var(--l2-foreground);
-		font-family: 'SF Mono', 'Fira Code', 'Fira Mono', monospace;
-		font-size: var(--paragraph-base-400-font-size);
-		line-height: var(--line-height-20);
-		white-space: nowrap;
-		margin-right: -1px;
-	}
-
-	&__copy-btn {
-		display: inline-flex;
-		align-items: center;
-		justify-content: center;
-		width: 26px;
-		padding: 1px 2px;
-		border-radius: 0 2px 2px 0;
-		background: var(--l3-background);
-		border: 1px solid var(--l2-border);
-		color: var(--l2-foreground);
-		cursor: pointer;
-		flex-shrink: 0;
-		height: 24px;
-
-		&:hover {
-			background: var(--l3-background-hover);
-		}
-	}
-}

frontend/src/container/GeneralSettings/LicenseKeyRow/LicenseKeyRow.tsx

@@ -1,48 +0,0 @@
-import { useCopyToClipboard } from 'react-use';
-import { Button } from '@signozhq/button';
-import { Copy, KeyRound } from '@signozhq/icons';
-import { toast } from '@signozhq/sonner';
-import { useAppContext } from 'providers/App/App';
-import { getMaskedKey } from 'utils/maskedKey';
-
-import './LicenseKeyRow.styles.scss';
-
-function LicenseKeyRow(): JSX.Element | null {
-	const { activeLicense } = useAppContext();
-	const [, copyToClipboard] = useCopyToClipboard();
-
-	if (!activeLicense?.key) {
-		return null;
-	}
-
-	const handleCopyLicenseKey = (text: string): void => {
-		copyToClipboard(text);
-		toast.success('License key copied to clipboard.', { richColors: true });
-	};
-
-	return (
-		<div className="license-key-row">
-			<span className="license-key-row__left">
-				<KeyRound size={14} />
-				<span className="license-key-row__label">SigNoz License Key</span>
-			</span>
-			<span className="license-key-row__value">
-				<code className="license-key-row__code">
-					{getMaskedKey(activeLicense.key)}
-				</code>
-				<Button
-					type="button"
-					size="xs"
-					aria-label="Copy license key"
-					data-testid="license-key-row-copy-btn"
-					className="license-key-row__copy-btn"
-					onClick={(): void => handleCopyLicenseKey(activeLicense.key)}
-				>
-					<Copy size={12} />
-				</Button>
-			</span>
-		</div>
-	);
-}
-
-export default LicenseKeyRow;

frontend/src/container/GeneralSettings/LicenseKeyRow/__tests__/LicenseKeyRow.test.tsx

@@ -1,61 +0,0 @@
-import { render, screen, userEvent, waitFor } from 'tests/test-utils';
-
-import LicenseKeyRow from '../LicenseKeyRow';
-
-const mockCopyToClipboard = jest.fn();
-
-jest.mock('react-use', () => ({
-	__esModule: true,
-	useCopyToClipboard: (): [unknown, jest.Mock] => [null, mockCopyToClipboard],
-}));
-
-const mockToastSuccess = jest.fn();
-
-jest.mock('@signozhq/sonner', () => ({
-	toast: {
-		success: (...args: unknown[]): unknown => mockToastSuccess(...args),
-	},
-}));
-
-describe('LicenseKeyRow', () => {
-	afterEach(() => {
-		jest.clearAllMocks();
-	});
-
-	it('renders nothing when activeLicense key is absent', () => {
-		const { container } = render(<LicenseKeyRow />, undefined, {
-			appContextOverrides: { activeLicense: null },
-		});
-
-		expect(container).toBeEmptyDOMElement();
-	});
-
-	it('renders label and masked key when activeLicense key exists', () => {
-		render(<LicenseKeyRow />, undefined, {
-			appContextOverrides: {
-				activeLicense: { key: 'abcdefghij' } as any,
-			},
-		});
-
-		expect(screen.getByText('SigNoz License Key')).toBeInTheDocument();
-		expect(screen.getByText('ab·······ij')).toBeInTheDocument();
-	});
-
-	it('calls copyToClipboard and shows success toast when clipboard is available', async () => {
-		const user = userEvent.setup({ pointerEventsCheck: 0 });
-
-		render(<LicenseKeyRow />);
-
-		await user.click(screen.getByRole('button', { name: /copy license key/i }));
-
-		await waitFor(() => {
-			expect(mockCopyToClipboard).toHaveBeenCalledWith('test-key');
-			expect(mockToastSuccess).toHaveBeenCalledWith(
-				'License key copied to clipboard.',
-				{
-					richColors: true,
-				},
-			);
-		});
-	});
-});

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

@@ -5,7 +5,6 @@ import logEvent from 'api/common/logEvent';
 import { DEFAULT_ENTITY_VERSION, ENTITY_VERSION_V5 } from 'constants/app';
 import { QueryParams } from 'constants/query';
 import { PANEL_TYPES } from 'constants/queryBuilder';
-import { useScrollWidgetIntoView } from 'container/DashboardContainer/visualization/hooks/useScrollWidgetIntoView';
 import { populateMultipleResults } from 'container/NewWidget/LeftContainer/WidgetGraph/util';
 import { CustomTimeType } from 'container/TopNav/DateTimeSelectionV2/types';
 import { useIsPanelWaitingOnVariable } from 'hooks/dashboard/useVariableFetchState';
@@ -68,7 +67,11 @@ function GridCardGraph({
 	const [isInternalServerError, setIsInternalServerError] = useState<boolean>(
 		false,
 	);
-	const { setDashboardQueryRangeCalled } = useDashboard();
+	const {
+		toScrollWidgetId,
+		setToScrollWidgetId,
+		setDashboardQueryRangeCalled,
+	} = useDashboard();
 
 	const {
 		minTime,
@@ -106,11 +109,20 @@ function GridCardGraph({
 		// eslint-disable-next-line react-hooks/exhaustive-deps
 	}, []);
 
-	const widgetContainerRef = useRef<HTMLDivElement>(null);
+	const graphRef = useRef<HTMLDivElement>(null);
 
-	const isVisible = useIntersectionObserver(widgetContainerRef, undefined, true);
+	const isVisible = useIntersectionObserver(graphRef, undefined, true);
 
-	useScrollWidgetIntoView(widget?.id || '', widgetContainerRef);
+	useEffect(() => {
+		if (toScrollWidgetId === widget.id) {
+			graphRef.current?.scrollIntoView({
+				behavior: 'smooth',
+				block: 'center',
+			});
+			graphRef.current?.focus();
+			setToScrollWidgetId('');
+		}
+	}, [toScrollWidgetId, setToScrollWidgetId, widget.id]);
 
 	const updatedQuery = widget?.query;
 
@@ -294,7 +306,7 @@ function GridCardGraph({
 			: headerMenuList;
 
 	return (
-		<div style={{ height: '100%', width: '100%' }} ref={widgetContainerRef}>
+		<div style={{ height: '100%', width: '100%' }} ref={graphRef}>
 			{isEmptyLayout ? (
 				<EmptyWidget />
 			) : (

frontend/src/container/LogsExplorerChart/__tests__/frequencyGraphColor.test.ts

@@ -4,8 +4,8 @@ import { getColorsForSeverityLabels, isRedLike } from '../utils';
 
 describe('getColorsForSeverityLabels', () => {
 	it('should return slate for blank labels', () => {
-		expect(getColorsForSeverityLabels('', 0)).toBe(Color.BG_VANILLA_400);
-		expect(getColorsForSeverityLabels('   ', 0)).toBe(Color.BG_VANILLA_400);
+		expect(getColorsForSeverityLabels('', 0)).toBe(Color.BG_SLATE_300);
+		expect(getColorsForSeverityLabels('   ', 0)).toBe(Color.BG_SLATE_300);
 	});
 
 	it('should return correct colors for known severity variants', () => {

frontend/src/container/LogsExplorerChart/utils.ts

@@ -79,7 +79,7 @@ export function getColorsForSeverityLabels(
 	const trimmed = label.trim();
 
 	if (!trimmed) {
-		return Color.BG_VANILLA_400; // Default color for empty labels
+		return Color.BG_SLATE_300;
 	}
 
 	const variantColor = SEVERITY_VARIANT_COLORS[trimmed];
@@ -119,6 +119,6 @@ export function getColorsForSeverityLabels(
 
 	return (
 		SAFE_FALLBACK_COLORS[index % SAFE_FALLBACK_COLORS.length] ||
-		Color.BG_VANILLA_400
+		Color.BG_SLATE_400
 	);
 }

frontend/src/container/LogsPanelTable/__tests__/LogsPanelComponent.test.tsx

@@ -5,6 +5,7 @@ import NewWidget from 'container/NewWidget';
 import { logsPaginationQueryRangeSuccessResponse } from 'mocks-server/__mockdata__/logs_query_range';
 import { server } from 'mocks-server/server';
 import { rest } from 'msw';
+import { DashboardProvider } from 'providers/Dashboard/Dashboard';
 import { PreferenceContextProvider } from 'providers/preferences/context/PreferenceContextProvider';
 import i18n from 'ReactI18';
 import { act, fireEvent, render, screen, waitFor } from 'tests/test-utils';
@@ -103,13 +104,15 @@ describe('LogsPanelComponent', () => {
 	const renderComponent = async (): Promise<void> => {
 		render(
 			<I18nextProvider i18n={i18n}>
-				<PreferenceContextProvider>
-					<NewWidget
-						dashboardId=""
-						selectedDashboard={undefined}
-						selectedGraph={PANEL_TYPES.LIST}
-					/>
-				</PreferenceContextProvider>
+				<DashboardProvider>
+					<PreferenceContextProvider>
+						<NewWidget
+							selectedGraph={PANEL_TYPES.LIST}
+							fillSpans={undefined}
+							yAxisUnit={undefined}
+						/>
+					</PreferenceContextProvider>
+				</DashboardProvider>
 			</I18nextProvider>,
 		);
 

frontend/src/container/MySettings/LicenseSection/LicenseSection.tsx

@@ -4,7 +4,6 @@ import { Typography } from 'antd';
 import { useNotifications } from 'hooks/useNotifications';
 import { Copy } from 'lucide-react';
 import { useAppContext } from 'providers/App/App';
-import { getMaskedKey } from 'utils/maskedKey';
 
 import './LicenseSection.styles.scss';
 
@@ -13,6 +12,15 @@ function LicenseSection(): JSX.Element | null {
 	const { notifications } = useNotifications();
 	const [, handleCopyToClipboard] = useCopyToClipboard();
 
+	const getMaskedKey = (key: string): string => {
+		if (!key || key.length < 4) {
+			return key || 'N/A';
+		}
+		return `${key.substring(0, 2)}********${key
+			.substring(key.length - 2)
+			.trim()}`;
+	};
+
 	const handleCopyKey = (text: string): void => {
 		handleCopyToClipboard(text);
 		notifications.success({

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

@@ -271,7 +271,7 @@ describe('MySettings Flows', () => {
 				},
 			});
 
-			expect(within(container).getByText('ab·······cd')).toBeInTheDocument();
+			expect(within(container).getByText('ab********cd')).toBeInTheDocument();
 		});
 
 		it('Should not mask license key if it is too short', () => {

frontend/src/container/NewWidget/LeftContainer/QuerySection/index.tsx

@@ -8,15 +8,28 @@ import { QueryBuilderV2 } from 'components/QueryBuilderV2/QueryBuilderV2';
 import TextToolTip from 'components/TextToolTip';
 import { PANEL_TYPES } from 'constants/queryBuilder';
 import { QBShortcuts } from 'constants/shortcuts/QBShortcuts';
-import { PANEL_TYPE_TO_QUERY_TYPES } from 'container/NewWidget/utils';
+import {
+	getDefaultWidgetData,
+	PANEL_TYPE_TO_QUERY_TYPES,
+} from 'container/NewWidget/utils';
 import RunQueryBtn from 'container/QueryBuilder/components/RunQueryBtn/RunQueryBtn';
+// import { QueryBuilder } from 'container/QueryBuilder';
 import { QueryBuilderProps } from 'container/QueryBuilder/QueryBuilder.interfaces';
 import { useKeyboardHotkeys } from 'hooks/hotkeys/useKeyboardHotkeys';
 import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
 import { useShareBuilderUrl } from 'hooks/queryBuilder/useShareBuilderUrl';
 import { useIsDarkMode } from 'hooks/useDarkMode';
+import useUrlQuery from 'hooks/useUrlQuery';
+import { defaultTo, isUndefined } from 'lodash-es';
 import { Atom, Terminal } from 'lucide-react';
+import { useDashboard } from 'providers/Dashboard/Dashboard';
+import {
+	getNextWidgets,
+	getPreviousWidgets,
+	getSelectedWidgetIndex,
+} from 'providers/Dashboard/util';
 import { Widgets } from 'types/api/dashboard/getAll';
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
 import { EQueryType } from 'types/common/dashboard';
 
 import ClickHouseQueryContainer from './QueryBuilder/clickHouse';
@@ -27,25 +40,77 @@ function QuerySection({
 	selectedGraph,
 	queryRangeKey,
 	isLoadingQueries,
-	selectedWidget,
-	dashboardVersion,
-	dashboardId,
-	dashboardName,
-	isNewPanel,
 }: QueryProps): JSX.Element {
 	const {
 		currentQuery,
 		handleRunQuery: handleRunQueryFromQueryBuilder,
 		redirectWithQueryBuilderData,
 	} = useQueryBuilder();
+	const urlQuery = useUrlQuery();
 	const { registerShortcut, deregisterShortcut } = useKeyboardHotkeys();
 
+	const { selectedDashboard, setSelectedDashboard } = useDashboard();
+
 	const isDarkMode = useIsDarkMode();
 
+	const { widgets } = selectedDashboard?.data || {};
+
+	const getWidget = useCallback(() => {
+		const widgetId = urlQuery.get('widgetId');
+		return defaultTo(
+			widgets?.find((e) => e.id === widgetId),
+			getDefaultWidgetData(widgetId || '', selectedGraph),
+		);
+	}, [urlQuery, widgets, selectedGraph]);
+
+	const selectedWidget = getWidget() as Widgets;
+
 	const { query } = selectedWidget;
 
 	useShareBuilderUrl({ defaultValue: query });
 
+	const handleStageQuery = useCallback(
+		(query: Query): void => {
+			if (selectedDashboard === undefined) {
+				return;
+			}
+
+			const selectedWidgetIndex = getSelectedWidgetIndex(
+				selectedDashboard,
+				selectedWidget.id,
+			);
+
+			const previousWidgets = getPreviousWidgets(
+				selectedDashboard,
+				selectedWidgetIndex,
+			);
+
+			const nextWidgets = getNextWidgets(selectedDashboard, selectedWidgetIndex);
+
+			setSelectedDashboard({
+				...selectedDashboard,
+				data: {
+					...selectedDashboard?.data,
+					widgets: [
+						...previousWidgets,
+						{
+							...selectedWidget,
+							query,
+						},
+						...nextWidgets,
+					],
+				},
+			});
+			handleRunQueryFromQueryBuilder();
+		},
+		[
+			selectedDashboard,
+			selectedWidget,
+			setSelectedDashboard,
+			handleRunQueryFromQueryBuilder,
+		],
+	);
+
 	const handleQueryCategoryChange = useCallback(
 		(qCategory: string): void => {
 			const currentQueryType = qCategory as EQueryType;
@@ -58,16 +123,19 @@ function QuerySection({
 	);
 
 	const handleRunQuery = (): void => {
+		const widgetId = urlQuery.get('widgetId');
+		const isNewPanel = isUndefined(widgets?.find((e) => e.id === widgetId));
+
 		logEvent('Panel Edit: Stage and run query', {
 			dataSource: currentQuery.builder?.queryData?.[0]?.dataSource,
 			panelType: selectedWidget.panelTypes,
 			queryType: currentQuery.queryType,
 			widgetId: selectedWidget.id,
-			dashboardId,
-			dashboardName,
+			dashboardId: selectedDashboard?.id,
+			dashboardName: selectedDashboard?.data.title,
 			isNewPanel,
 		});
-		handleRunQueryFromQueryBuilder();
+		handleStageQuery(currentQuery);
 	};
 
 	const filterConfigs: QueryBuilderProps['filterConfigs'] = useMemo(() => {
@@ -96,7 +164,7 @@ function QuerySection({
 							panelType={selectedGraph}
 							filterConfigs={filterConfigs}
 							showTraceOperator={selectedGraph !== PANEL_TYPES.LIST}
-							version={dashboardVersion || 'v3'}
+							version={selectedDashboard?.data?.version || 'v3'}
 							isListViewPanel={selectedGraph === PANEL_TYPES.LIST}
 							queryComponents={queryComponents}
 							signalSourceChangeEnabled
@@ -136,7 +204,7 @@ function QuerySection({
 		queryComponents,
 		selectedGraph,
 		filterConfigs,
-		dashboardVersion,
+		selectedDashboard?.data?.version,
 		isDarkMode,
 	]);
 
@@ -193,11 +261,6 @@ interface QueryProps {
 	selectedGraph: PANEL_TYPES;
 	queryRangeKey?: QueryKey;
 	isLoadingQueries?: boolean;
-	selectedWidget: Widgets;
-	dashboardVersion?: string;
-	dashboardId?: string;
-	dashboardName?: string;
-	isNewPanel?: boolean;
 }
 
 export default QuerySection;

frontend/src/container/NewWidget/LeftContainer/index.tsx

@@ -30,8 +30,6 @@ function LeftContainer({
 	setRequestData,
 	setQueryResponse,
 	enableDrillDown = false,
-	selectedDashboard,
-	isNewPanel = false,
 }: WidgetGraphProps): JSX.Element {
 	const { stagedQuery } = useQueryBuilder();
 
@@ -77,11 +75,6 @@ function LeftContainer({
 					selectedGraph={selectedGraph}
 					queryRangeKey={queryRangeKey}
 					isLoadingQueries={queryResponse.isFetching}
-					selectedWidget={selectedWidget}
-					dashboardVersion={ENTITY_VERSION_V5}
-					dashboardId={selectedDashboard?.id}
-					dashboardName={selectedDashboard?.data.title}
-					isNewPanel={isNewPanel}
 				/>
 				{selectedGraph === PANEL_TYPES.LIST && (
 					<ExplorerColumnsRenderer

frontend/src/container/NewWidget/RightContainer/__tests__/RightContainer.test.tsx

@@ -8,6 +8,7 @@ import userEvent from '@testing-library/user-event';
 import { PANEL_TYPES } from 'constants/queryBuilder';
 import { AppContext } from 'providers/App/App';
 import { IAppContext } from 'providers/App/types';
+import { DashboardProvider } from 'providers/Dashboard/Dashboard';
 import { ErrorModalProvider } from 'providers/ErrorModalProvider';
 import { QueryBuilderProvider } from 'providers/QueryBuilder';
 import configureStore from 'redux-mock-store';
@@ -95,7 +96,9 @@ const render = (ui: React.ReactElement): ReturnType<typeof rtlRender> =>
 				<Provider store={createMockStore()}>
 					<AppContext.Provider value={createMockAppContext() as IAppContext}>
 						<ErrorModalProvider>
-							<QueryBuilderProvider>{ui}</QueryBuilderProvider>
+							<DashboardProvider>
+								<QueryBuilderProvider>{ui}</QueryBuilderProvider>
+							</DashboardProvider>
 						</ErrorModalProvider>
 					</AppContext.Provider>
 				</Provider>

frontend/src/container/NewWidget/__test__/NewWidget.test.tsx

@@ -310,12 +310,12 @@ describe('Stacking bar in new panel', () => {
 
 		const { container, getByText } = render(
 			<I18nextProvider i18n={i18n}>
-				<DashboardProvider dashboardId="">
+				<DashboardProvider>
 					<PreferenceContextProvider>
 						<NewWidget
-							dashboardId=""
-							selectedDashboard={undefined}
 							selectedGraph={PANEL_TYPES.BAR}
+							fillSpans={undefined}
+							yAxisUnit={undefined}
 						/>
 					</PreferenceContextProvider>
 				</DashboardProvider>
@@ -356,11 +356,11 @@ describe('when switching to BAR panel type', () => {
 
 	it('should preserve saved stacking value of true', async () => {
 		const { getByTestId, getByText, container } = render(
-			<DashboardProvider dashboardId="">
+			<DashboardProvider>
 				<NewWidget
-					dashboardId=""
-					selectedDashboard={undefined}
 					selectedGraph={PANEL_TYPES.BAR}
+					fillSpans={undefined}
+					yAxisUnit={undefined}
 				/>
 			</DashboardProvider>,
 		);

frontend/src/container/NewWidget/index.tsx

@@ -4,7 +4,7 @@ import { useTranslation } from 'react-i18next';
 import { UseQueryResult } from 'react-query';
 // eslint-disable-next-line no-restricted-imports
 import { useSelector } from 'react-redux';
-import { generatePath } from 'react-router-dom';
+import { generatePath, useParams } from 'react-router-dom';
 import { WarningOutlined } from '@ant-design/icons';
 import { Button, Flex, Modal, Space, Typography } from 'antd';
 import logEvent from 'api/common/logEvent';
@@ -32,7 +32,8 @@ import { GetQueryResultsProps } from 'lib/dashboard/getQueryResults';
 import { getDashboardVariables } from 'lib/dashboardVariables/getDashboardVariables';
 import { cloneDeep, defaultTo, isEmpty, isUndefined } from 'lodash-es';
 import { Check, X } from 'lucide-react';
-import { useScrollToWidgetIdStore } from 'providers/Dashboard/helpers/scrollToWidgetIdHelper';
+import { DashboardWidgetPageParams } from 'pages/DashboardWidget';
+import { useDashboard } from 'providers/Dashboard/Dashboard';
 import {
 	clearSelectedRowWidgetId,
 	getSelectedRowWidgetId,
@@ -81,15 +82,16 @@ import {
 import './NewWidget.styles.scss';
 
 function NewWidget({
-	selectedDashboard,
-	dashboardId,
 	selectedGraph,
 	enableDrillDown = false,
 }: NewWidgetProps): JSX.Element {
 	const { safeNavigate } = useSafeNavigate();
-	const setToScrollWidgetId = useScrollToWidgetIdStore(
-		(s) => s.setToScrollWidgetId,
-	);
+	const {
+		selectedDashboard,
+		setSelectedDashboard,
+		setToScrollWidgetId,
+		columnWidths,
+	} = useDashboard();
 
 	const { dashboardVariables } = useDashboardVariables();
 
@@ -134,6 +136,8 @@ function NewWidget({
 
 	const query = useUrlQuery();
 
+	const { dashboardId } = useParams<DashboardWidgetPageParams>();
+
 	const [isNewDashboard, setIsNewDashboard] = useState<boolean>(false);
 
 	const logEventCalledRef = useRef(false);
@@ -279,10 +283,11 @@ function NewWidget({
 				isLogScale,
 				legendPosition,
 				customLegendColors,
-				columnWidths: selectedWidget.columnWidths,
+				columnWidths: columnWidths?.[selectedWidget?.id],
 				contextLinks,
 			};
 		});
+		// eslint-disable-next-line react-hooks/exhaustive-deps
 	}, [
 		columnUnits,
 		currentQuery,
@@ -305,8 +310,8 @@ function NewWidget({
 		isLogScale,
 		legendPosition,
 		customLegendColors,
+		columnWidths,
 		contextLinks,
-		selectedWidget.columnWidths,
 	]);
 
 	const closeModal = (): void => {
@@ -439,19 +444,6 @@ function NewWidget({
 		globalSelectedInterval,
 	]);
 
-	const navigateToDashboardPage = useCallback(() => {
-		const params = new URLSearchParams();
-
-		const urlVariablesQueryString = query.get(QueryParams.variables);
-		if (urlVariablesQueryString) {
-			params.set(QueryParams.variables, urlVariablesQueryString);
-		}
-
-		const search = params.toString() ? `?${params.toString()}` : '';
-
-		safeNavigate(generatePath(ROUTES.DASHBOARD, { dashboardId }) + search);
-	}, [dashboardId, query, safeNavigate]);
-
 	const onClickSaveHandler = useCallback(() => {
 		if (!selectedDashboard) {
 			return;
@@ -565,9 +557,12 @@ function NewWidget({
 		};
 
 		updateDashboardMutation.mutateAsync(dashboard, {
-			onSuccess: () => {
+			onSuccess: (updatedDashboard) => {
+				setSelectedDashboard(updatedDashboard.data);
 				setToScrollWidgetId(selectedWidget?.id || '');
-				navigateToDashboardPage();
+				safeNavigate({
+					pathname: generatePath(ROUTES.DASHBOARD, { dashboardId }),
+				});
 			},
 		});
 	}, [
@@ -582,8 +577,9 @@ function NewWidget({
 		preWidgets,
 		updateDashboardMutation,
 		widgets,
+		setSelectedDashboard,
 		setToScrollWidgetId,
-		navigateToDashboardPage,
+		safeNavigate,
 		dashboardId,
 	]);
 
@@ -592,12 +588,12 @@ function NewWidget({
 			setDiscardModal(true);
 			return;
 		}
-		navigateToDashboardPage();
-	}, [isQueryModified, navigateToDashboardPage]);
+		safeNavigate(generatePath(ROUTES.DASHBOARD, { dashboardId }));
+	}, [dashboardId, isQueryModified, safeNavigate]);
 
 	const discardChanges = useCallback(() => {
-		navigateToDashboardPage();
-	}, [navigateToDashboardPage]);
+		safeNavigate(generatePath(ROUTES.DASHBOARD, { dashboardId }));
+	}, [dashboardId, safeNavigate]);
 
 	const setGraphHandler = (type: PANEL_TYPES): void => {
 		setIsLoadingPanelData(true);
@@ -631,25 +627,22 @@ function NewWidget({
 		// eslint-disable-next-line react-hooks/exhaustive-deps
 	}, [query]);
 
-	const isNewPanel = useMemo(() => {
-		const widgetId = query.get('widgetId');
-		const selectedWidget = widgets?.find((e) => e.id === widgetId);
-		return isUndefined(selectedWidget);
-	}, [query, widgets]);
-
 	const onSaveDashboard = useCallback((): void => {
+		const widgetId = query.get('widgetId');
+		const selectWidget = widgets?.find((e) => e.id === widgetId);
+
 		logEvent('Panel Edit: Save changes', {
 			panelType: selectedWidget.panelTypes,
 			dashboardId: selectedDashboard?.id,
 			widgetId: selectedWidget.id,
 			dashboardName: selectedDashboard?.data.title,
 			queryType: currentQuery.queryType,
-			isNewPanel,
+			isNewPanel: isUndefined(selectWidget),
 			dataSource: currentQuery?.builder?.queryData?.[0]?.dataSource,
 		});
 		setSaveModal(true);
 		// eslint-disable-next-line react-hooks/exhaustive-deps
-	}, [isNewPanel]);
+	}, []);
 
 	const isNewTraceLogsAvailable =
 		currentQuery.queryType === EQueryType.QUERY_BUILDER &&
@@ -739,14 +732,12 @@ function NewWidget({
 		}
 		const widgetId = query.get('widgetId') || '';
 		const graphType = query.get('graphType') || '';
-		const variables = query.get(QueryParams.variables) || '';
 		const queryParams = {
 			[QueryParams.expandedWidgetId]: widgetId,
 			[QueryParams.graphType]: graphType,
 			[QueryParams.compositeQuery]: encodeURIComponent(
 				JSON.stringify(currentQuery),
 			),
-			[QueryParams.variables]: variables,
 		};
 
 		const updatedSearch = createQueryParams(queryParams);
@@ -827,8 +818,6 @@ function NewWidget({
 								isLoadingPanelData={isLoadingPanelData}
 								setQueryResponse={setQueryResponse}
 								enableDrillDown={enableDrillDown}
-								selectedDashboard={selectedDashboard}
-								isNewPanel={isNewPanel}
 							/>
 						)}
 					</OverlayScrollbar>

frontend/src/container/NewWidget/types.ts

@@ -2,7 +2,6 @@ import { Dispatch, SetStateAction } from 'react';
 import { UseQueryResult } from 'react-query';
 import { PANEL_TYPES } from 'constants/queryBuilder';
 import { GetQueryResultsProps } from 'lib/dashboard/getQueryResults';
-import { IDashboardContext } from 'providers/Dashboard/types';
 import { SuccessResponse, Warning } from 'types/api';
 import { Widgets } from 'types/api/dashboard/getAll';
 import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
@@ -10,9 +9,9 @@ import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
 import { timePreferance } from './RightContainer/timeItems';
 
 export interface NewWidgetProps {
-	dashboardId: string;
-	selectedDashboard: IDashboardContext['selectedDashboard'];
 	selectedGraph: PANEL_TYPES;
+	yAxisUnit: Widgets['yAxisUnit'];
+	fillSpans: Widgets['fillSpans'];
 	enableDrillDown?: boolean;
 }
 
@@ -35,8 +34,6 @@ export interface WidgetGraphProps {
 		>
 	>;
 	enableDrillDown?: boolean;
-	selectedDashboard: IDashboardContext['selectedDashboard'];
-	isNewPanel?: boolean;
 }
 
 export type WidgetGraphContainerProps = {

frontend/src/container/PanelWrapper/HistogramPanelWrapper.tsx

@@ -0,0 +1,180 @@
+import { useCallback, useEffect, useMemo, useRef } from 'react';
+import { ToggleGraphProps } from 'components/Graph/types';
+import Uplot from 'components/Uplot';
+import GraphManager from 'container/GridCardLayout/GridCard/FullView/GraphManager';
+import { getLocalStorageGraphVisibilityState } from 'container/GridCardLayout/GridCard/utils';
+import { getUplotClickData } from 'container/QueryTable/Drilldown/drilldownUtils';
+import useGraphContextMenu from 'container/QueryTable/Drilldown/useGraphContextMenu';
+import { useIsDarkMode } from 'hooks/useDarkMode';
+import { useResizeObserver } from 'hooks/useDimensions';
+import { getUplotHistogramChartOptions } from 'lib/uPlotLib/getUplotHistogramChartOptions';
+import _noop from 'lodash-es/noop';
+import { ContextMenu, useCoordinates } from 'periscope/components/ContextMenu';
+import { useDashboard } from 'providers/Dashboard/Dashboard';
+
+import { buildHistogramData } from './histogram';
+import { PanelWrapperProps } from './panelWrapper.types';
+
+function HistogramPanelWrapper({
+	queryResponse,
+	widget,
+	setGraphVisibility,
+	graphVisibility,
+	isFullViewMode,
+	onToggleModelHandler,
+	onClickHandler,
+	enableDrillDown = false,
+}: PanelWrapperProps): JSX.Element {
+	const graphRef = useRef<HTMLDivElement>(null);
+	const legendScrollPositionRef = useRef<number>(0);
+	const { toScrollWidgetId, setToScrollWidgetId } = useDashboard();
+	const isDarkMode = useIsDarkMode();
+	const containerDimensions = useResizeObserver(graphRef);
+	const {
+		coordinates,
+		popoverPosition,
+		clickedData,
+		onClose,
+		onClick,
+		subMenu,
+		setSubMenu,
+	} = useCoordinates();
+	const { menuItemsConfig } = useGraphContextMenu({
+		widgetId: widget.id || '',
+		query: widget.query,
+		graphData: clickedData,
+		onClose,
+		coordinates,
+		subMenu,
+		setSubMenu,
+		contextLinks: widget.contextLinks,
+		panelType: widget.panelTypes,
+		queryRange: queryResponse,
+	});
+
+	const clickHandlerWithContextMenu = useCallback(
+		(...args: any[]) => {
+			const [
+				,
+				,
+				,
+				,
+				metric,
+				queryData,
+				absoluteMouseX,
+				absoluteMouseY,
+				,
+				focusedSeries,
+			] = args;
+			const data = getUplotClickData({
+				metric,
+				queryData,
+				absoluteMouseX,
+				absoluteMouseY,
+				focusedSeries,
+			});
+			if (data && data?.record?.queryName) {
+				onClick(data.coord, { ...data.record, label: data.label });
+			}
+		},
+		[onClick],
+	);
+
+	const histogramData = buildHistogramData(
+		queryResponse.data?.payload.data.result,
+		widget?.bucketWidth,
+		widget?.bucketCount,
+		widget?.mergeAllActiveQueries,
+	);
+
+	useEffect(() => {
+		if (toScrollWidgetId === widget.id) {
+			graphRef.current?.scrollIntoView({
+				behavior: 'smooth',
+				block: 'center',
+			});
+			graphRef.current?.focus();
+			setToScrollWidgetId('');
+		}
+	}, [toScrollWidgetId, setToScrollWidgetId, widget.id]);
+	const lineChartRef = useRef<ToggleGraphProps>();
+
+	useEffect(() => {
+		const {
+			graphVisibilityStates: localStoredVisibilityState,
+		} = getLocalStorageGraphVisibilityState({
+			apiResponse: queryResponse.data?.payload.data.result || [],
+			name: widget.id,
+		});
+		if (setGraphVisibility) {
+			setGraphVisibility(localStoredVisibilityState);
+		}
+	}, [
+		queryResponse?.data?.payload?.data?.result,
+		setGraphVisibility,
+		widget.id,
+	]);
+
+	const histogramOptions = useMemo(
+		() =>
+			getUplotHistogramChartOptions({
+				id: widget.id,
+				dimensions: containerDimensions,
+				isDarkMode,
+				apiResponse: queryResponse.data?.payload,
+				histogramData,
+				panelType: widget.panelTypes,
+				setGraphsVisibilityStates: setGraphVisibility,
+				graphsVisibilityStates: graphVisibility,
+				mergeAllQueries: widget.mergeAllActiveQueries,
+				onClickHandler: enableDrillDown
+					? clickHandlerWithContextMenu
+					: onClickHandler ?? _noop,
+				legendScrollPosition: legendScrollPositionRef.current,
+				setLegendScrollPosition: (position: number) => {
+					legendScrollPositionRef.current = position;
+				},
+			}),
+		[
+			containerDimensions,
+			graphVisibility,
+			histogramData,
+			isDarkMode,
+			queryResponse.data?.payload,
+			setGraphVisibility,
+			widget.id,
+			widget.mergeAllActiveQueries,
+			widget.panelTypes,
+			clickHandlerWithContextMenu,
+			enableDrillDown,
+			onClickHandler,
+		],
+	);
+
+	return (
+		<div style={{ height: '100%', width: '100%' }} ref={graphRef}>
+			<Uplot options={histogramOptions} data={histogramData} ref={lineChartRef} />
+			<ContextMenu
+				coordinates={coordinates}
+				popoverPosition={popoverPosition}
+				title={menuItemsConfig.header as string}
+				items={menuItemsConfig.items}
+				onClose={onClose}
+			/>
+			{isFullViewMode && setGraphVisibility && !widget.mergeAllActiveQueries && (
+				<GraphManager
+					data={histogramData}
+					name={widget.id}
+					options={histogramOptions}
+					yAxisUnit={widget.yAxisUnit}
+					onToggleModelHandler={onToggleModelHandler}
+					setGraphsVisibilityStates={setGraphVisibility}
+					graphsVisibilityStates={graphVisibility}
+					lineChartRef={lineChartRef}
+				/>
+			)}
+		</div>
+	);
+}
+
+export default HistogramPanelWrapper;

frontend/src/container/PanelWrapper/UplotPanelWrapper.styles.scss

@@ -0,0 +1,4 @@
+.info-text {
+	margin-top: 8px;
+	padding: 8px;
+}

frontend/src/container/PanelWrapper/UplotPanelWrapper.tsx

@@ -0,0 +1,318 @@
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import { Alert } from 'antd';
+import { ToggleGraphProps } from 'components/Graph/types';
+import Uplot from 'components/Uplot';
+import { PANEL_TYPES } from 'constants/queryBuilder';
+import GraphManager from 'container/GridCardLayout/GridCard/FullView/GraphManager';
+import { getLocalStorageGraphVisibilityState } from 'container/GridCardLayout/GridCard/utils';
+import { getUplotClickData } from 'container/QueryTable/Drilldown/drilldownUtils';
+import useGraphContextMenu from 'container/QueryTable/Drilldown/useGraphContextMenu';
+import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
+import { useIsDarkMode } from 'hooks/useDarkMode';
+import { useResizeObserver } from 'hooks/useDimensions';
+import { getUPlotChartOptions } from 'lib/uPlotLib/getUplotChartOptions';
+import { getUPlotChartData } from 'lib/uPlotLib/utils/getUplotChartData';
+import { cloneDeep, isEqual, isUndefined } from 'lodash-es';
+import _noop from 'lodash-es/noop';
+import { ContextMenu, useCoordinates } from 'periscope/components/ContextMenu';
+import { useDashboard } from 'providers/Dashboard/Dashboard';
+import { useTimezone } from 'providers/Timezone';
+import { DataSource } from 'types/common/queryBuilder';
+import uPlot from 'uplot';
+import { getSortedSeriesData } from 'utils/getSortedSeriesData';
+import { getTimeRange } from 'utils/getTimeRange';
+
+import { PanelWrapperProps } from './panelWrapper.types';
+import { getTimeRangeFromStepInterval, isApmMetric } from './utils';
+
+import './UplotPanelWrapper.styles.scss';
+
+function UplotPanelWrapper({
+	queryResponse,
+	widget,
+	isFullViewMode,
+	setGraphVisibility,
+	graphVisibility,
+	onToggleModelHandler,
+	onClickHandler,
+	onDragSelect,
+	selectedGraph,
+	customTooltipElement,
+	customSeries,
+	enableDrillDown = false,
+}: PanelWrapperProps): JSX.Element {
+	const { toScrollWidgetId, setToScrollWidgetId } = useDashboard();
+	const isDarkMode = useIsDarkMode();
+	const lineChartRef = useRef<ToggleGraphProps>();
+	const graphRef = useRef<HTMLDivElement>(null);
+	const legendScrollPositionRef = useRef<{
+		scrollTop: number;
+		scrollLeft: number;
+	}>({
+		scrollTop: 0,
+		scrollLeft: 0,
+	});
+	const [minTimeScale, setMinTimeScale] = useState<number>();
+	const [maxTimeScale, setMaxTimeScale] = useState<number>();
+	const { currentQuery } = useQueryBuilder();
+
+	const [hiddenGraph, setHiddenGraph] = useState<{ [key: string]: boolean }>();
+
+	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 containerDimensions = useResizeObserver(graphRef);
+
+	const {
+		coordinates,
+		popoverPosition,
+		clickedData,
+		onClose,
+		onClick,
+		subMenu,
+		setSubMenu,
+	} = useCoordinates();
+	const { menuItemsConfig } = useGraphContextMenu({
+		widgetId: widget.id || '',
+		query: widget.query,
+		graphData: clickedData,
+		onClose,
+		coordinates,
+		subMenu,
+		setSubMenu,
+		contextLinks: widget.contextLinks,
+		panelType: widget.panelTypes,
+		queryRange: queryResponse,
+	});
+
+	useEffect(() => {
+		const {
+			graphVisibilityStates: localStoredVisibilityState,
+		} = getLocalStorageGraphVisibilityState({
+			apiResponse: queryResponse.data?.payload.data.result || [],
+			name: widget.id,
+		});
+		if (setGraphVisibility) {
+			setGraphVisibility(localStoredVisibilityState);
+		}
+	}, [
+		queryResponse?.data?.payload?.data?.result,
+		setGraphVisibility,
+		widget.id,
+	]);
+
+	if (queryResponse.data && widget.panelTypes === PANEL_TYPES.BAR) {
+		const sortedSeriesData = getSortedSeriesData(
+			queryResponse.data?.payload.data.result,
+		);
+		queryResponse.data.payload.data.result = sortedSeriesData;
+	}
+
+	const stackedBarChart = useMemo(
+		() =>
+			(selectedGraph
+				? selectedGraph === PANEL_TYPES.BAR
+				: widget?.panelTypes === PANEL_TYPES.BAR) && widget?.stackedBarChart,
+		[selectedGraph, widget?.panelTypes, widget?.stackedBarChart],
+	);
+
+	const chartData = useMemo(
+		() =>
+			getUPlotChartData(
+				queryResponse?.data?.payload,
+				widget.fillSpans,
+				stackedBarChart,
+				hiddenGraph,
+			),
+		[
+			queryResponse?.data?.payload,
+			widget.fillSpans,
+			stackedBarChart,
+			hiddenGraph,
+		],
+	);
+
+	useEffect(() => {
+		if (widget.panelTypes === PANEL_TYPES.BAR && stackedBarChart) {
+			const graphV = cloneDeep(graphVisibility)?.slice(1);
+			const isSomeSelectedLegend = graphV?.some((v) => v === false);
+			if (isSomeSelectedLegend) {
+				const hiddenIndex = graphV?.findIndex((v) => v === true);
+				if (!isUndefined(hiddenIndex) && hiddenIndex !== -1) {
+					const updatedHiddenGraph = { [hiddenIndex]: true };
+					if (!isEqual(hiddenGraph, updatedHiddenGraph)) {
+						setHiddenGraph(updatedHiddenGraph);
+					}
+				}
+			}
+		}
+	}, [graphVisibility, hiddenGraph, widget.panelTypes, stackedBarChart]);
+
+	const { timezone } = useTimezone();
+
+	const clickHandlerWithContextMenu = useCallback(
+		(...args: any[]) => {
+			const [
+				xValue,
+				,
+				,
+				,
+				metric,
+				queryData,
+				absoluteMouseX,
+				absoluteMouseY,
+				axesData,
+				focusedSeries,
+			] = args;
+			const data = getUplotClickData({
+				metric,
+				queryData,
+				absoluteMouseX,
+				absoluteMouseY,
+				focusedSeries,
+			});
+			// Compute time range if needed and if axes data is available
+			let timeRange;
+			if (axesData && queryData?.queryName) {
+				// Get the compositeQuery from the response params
+				const compositeQuery = (queryResponse?.data?.params as any)?.compositeQuery;
+
+				if (compositeQuery?.queries) {
+					// Find the specific query by name from the queries array
+					const specificQuery = compositeQuery.queries.find(
+						(query: any) => query.spec?.name === queryData.queryName,
+					);
+
+					// Use the stepInterval from the specific query, fallback to default
+					const stepInterval = specificQuery?.spec?.stepInterval || 60;
+					timeRange = getTimeRangeFromStepInterval(
+						stepInterval,
+						metric?.clickedTimestamp || xValue, // Use the clicked timestamp if available, otherwise use the click position timestamp
+						specificQuery?.spec?.signal === DataSource.METRICS &&
+							isApmMetric(specificQuery?.spec?.aggregations[0]?.metricName),
+					);
+				}
+			}
+
+			if (data && data?.record?.queryName) {
+				onClick(data.coord, { ...data.record, label: data.label, timeRange });
+			}
+		},
+		[onClick, queryResponse],
+	);
+
+	const options = useMemo(
+		() =>
+			getUPlotChartOptions({
+				id: widget?.id,
+				apiResponse: queryResponse.data?.payload,
+				dimensions: containerDimensions,
+				isDarkMode,
+				onDragSelect,
+				yAxisUnit: widget?.yAxisUnit,
+				onClickHandler: enableDrillDown
+					? clickHandlerWithContextMenu
+					: onClickHandler ?? _noop,
+				thresholds: widget.thresholds,
+				minTimeScale,
+				maxTimeScale,
+				softMax: widget.softMax === undefined ? null : widget.softMax,
+				softMin: widget.softMin === undefined ? null : widget.softMin,
+				graphsVisibilityStates: graphVisibility,
+				setGraphsVisibilityStates: setGraphVisibility,
+				panelType: selectedGraph || widget.panelTypes,
+				currentQuery,
+				stackBarChart: stackedBarChart,
+				hiddenGraph,
+				setHiddenGraph,
+				customTooltipElement,
+				tzDate: (timestamp: number) =>
+					uPlot.tzDate(new Date(timestamp * 1e3), timezone.value),
+				timezone: timezone.value,
+				customSeries,
+				isLogScale: widget?.isLogScale,
+				colorMapping: widget?.customLegendColors,
+				enhancedLegend: true, // Enable enhanced legend
+				legendPosition: widget?.legendPosition,
+				query: widget?.query || currentQuery,
+				legendScrollPosition: legendScrollPositionRef.current,
+				setLegendScrollPosition: (position: {
+					scrollTop: number;
+					scrollLeft: number;
+				}) => {
+					legendScrollPositionRef.current = position;
+				},
+				decimalPrecision: widget.decimalPrecision,
+			}),
+		[
+			queryResponse.data?.payload,
+			containerDimensions,
+			isDarkMode,
+			onDragSelect,
+			clickHandlerWithContextMenu,
+			minTimeScale,
+			maxTimeScale,
+			graphVisibility,
+			setGraphVisibility,
+			selectedGraph,
+			currentQuery,
+			hiddenGraph,
+			customTooltipElement,
+			timezone.value,
+			customSeries,
+			enableDrillDown,
+			onClickHandler,
+			widget,
+			stackedBarChart,
+		],
+	);
+
+	return (
+		<div style={{ height: '100%', width: '100%' }} ref={graphRef}>
+			<Uplot options={options} data={chartData} ref={lineChartRef} />
+			<ContextMenu
+				coordinates={coordinates}
+				popoverPosition={popoverPosition}
+				title={menuItemsConfig.header as string}
+				items={menuItemsConfig.items}
+				onClose={onClose}
+			/>
+			{stackedBarChart && isFullViewMode && (
+				<Alert
+					message="Selecting multiple legends is currently not supported in case of stacked bar charts"
+					type="info"
+					className="info-text"
+				/>
+			)}
+			{isFullViewMode && setGraphVisibility && !stackedBarChart && (
+				<GraphManager
+					data={chartData}
+					name={widget.id}
+					options={options}
+					yAxisUnit={widget.yAxisUnit}
+					onToggleModelHandler={onToggleModelHandler}
+					setGraphsVisibilityStates={setGraphVisibility}
+					graphsVisibilityStates={graphVisibility}
+					lineChartRef={lineChartRef}
+				/>
+			)}
+		</div>
+	);
+}
+
+export default UplotPanelWrapper;

frontend/src/container/SideNav/config.ts

@@ -38,7 +38,6 @@ export const routeConfig: Record<string, QueryParams[]> = {
 	[ROUTES.MY_SETTINGS]: [QueryParams.resourceAttributes],
 	[ROUTES.NOT_FOUND]: [QueryParams.resourceAttributes],
 	[ROUTES.ORG_SETTINGS]: [QueryParams.resourceAttributes],
-	[ROUTES.MEMBERS_SETTINGS]: [QueryParams.resourceAttributes],
 	[ROUTES.PASSWORD_RESET]: [QueryParams.resourceAttributes],
 	[ROUTES.SETTINGS]: [QueryParams.resourceAttributes],
 	[ROUTES.SIGN_UP]: [QueryParams.resourceAttributes],

frontend/src/hooks/dashboard/__test__/useTransformDashboardVariables.test.tsx

@@ -1,339 +0,0 @@
-import { renderHook } from '@testing-library/react';
-import { useDashboardVariablesFromLocalStorage } from 'hooks/dashboard/useDashboardFromLocalStorage';
-import { useTransformDashboardVariables } from 'hooks/dashboard/useTransformDashboardVariables';
-import useVariablesFromUrl from 'hooks/dashboard/useVariablesFromUrl';
-import { Dashboard, IDashboardVariable } from 'types/api/dashboard/getAll';
-
-jest.mock('hooks/dashboard/useDashboardFromLocalStorage');
-jest.mock('hooks/dashboard/useVariablesFromUrl');
-
-const mockUseDashboardVariablesFromLocalStorage = useDashboardVariablesFromLocalStorage as jest.MockedFunction<
-	typeof useDashboardVariablesFromLocalStorage
->;
-const mockUseVariablesFromUrl = useVariablesFromUrl as jest.MockedFunction<
-	typeof useVariablesFromUrl
->;
-
-const makeVariable = (
-	overrides: Partial<IDashboardVariable> = {},
-): IDashboardVariable => ({
-	id: 'existing-id',
-	name: 'env',
-	description: '',
-	type: 'QUERY',
-	sort: 'DISABLED',
-	multiSelect: false,
-	showALLOption: false,
-	selectedValue: 'prod',
-	...overrides,
-});
-
-const makeDashboard = (
-	variables: Record<string, IDashboardVariable>,
-): Dashboard => ({
-	id: 'dash-1',
-	createdAt: '',
-	updatedAt: '',
-	createdBy: '',
-	updatedBy: '',
-	data: {
-		title: 'Test',
-		variables,
-	},
-});
-
-const setupHook = (
-	currentDashboard: Record<string, any> = {},
-	urlVariables: Record<string, any> = {},
-): ReturnType<typeof useTransformDashboardVariables> => {
-	mockUseDashboardVariablesFromLocalStorage.mockReturnValue({
-		currentDashboard,
-		updateLocalStorageDashboardVariables: jest.fn(),
-	});
-	mockUseVariablesFromUrl.mockReturnValue({
-		getUrlVariables: () => urlVariables,
-		setUrlVariables: jest.fn(),
-		updateUrlVariable: jest.fn(),
-	});
-
-	const { result } = renderHook(() => useTransformDashboardVariables('dash-1'));
-	return result.current;
-};
-
-describe('useTransformDashboardVariables', () => {
-	beforeEach(() => jest.clearAllMocks());
-
-	describe('order assignment', () => {
-		it('assigns order starting from 0 to variables that have none', () => {
-			const { transformDashboardVariables } = setupHook();
-			const dashboard = makeDashboard({
-				v1: makeVariable({ id: 'id1', name: 'v1', order: undefined }),
-				v2: makeVariable({ id: 'id2', name: 'v2', order: undefined }),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			const orders = Object.values(result.data.variables).map((v) => v.order);
-			expect(orders).toContain(0);
-			expect(orders).toContain(1);
-		});
-
-		it('preserves existing order values', () => {
-			const { transformDashboardVariables } = setupHook();
-			const dashboard = makeDashboard({
-				v1: makeVariable({ id: 'id1', name: 'v1', order: 5 }),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.order).toBe(5);
-		});
-
-		it('assigns unique orders across multiple variables that all lack an order', () => {
-			const { transformDashboardVariables } = setupHook();
-			const dashboard = makeDashboard({
-				v1: makeVariable({ id: 'id1', name: 'v1', order: undefined }),
-				v2: makeVariable({ id: 'id2', name: 'v2', order: undefined }),
-				v3: makeVariable({ id: 'id3', name: 'v3', order: undefined }),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			const orders = Object.values(result.data.variables).map((v) => v.order);
-			// All three newly assigned orders must be distinct
-			expect(new Set(orders).size).toBe(3);
-		});
-	});
-
-	describe('ID assignment', () => {
-		it('assigns a UUID to variables that have no id', () => {
-			const { transformDashboardVariables } = setupHook();
-			const variable = makeVariable({ name: 'v1' });
-			(variable as any).id = undefined;
-			const dashboard = makeDashboard({ v1: variable });
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.id).toMatch(
-				/^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i,
-			);
-		});
-
-		it('preserves existing IDs', () => {
-			const { transformDashboardVariables } = setupHook();
-			const dashboard = makeDashboard({
-				v1: makeVariable({ id: 'keep-me', name: 'v1' }),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.id).toBe('keep-me');
-		});
-	});
-
-	describe('TEXTBOX backward compatibility', () => {
-		it('copies textboxValue to defaultValue when defaultValue is missing', () => {
-			const { transformDashboardVariables } = setupHook();
-			const dashboard = makeDashboard({
-				v1: makeVariable({
-					id: 'id1',
-					name: 'v1',
-					type: 'TEXTBOX',
-					textboxValue: 'hello',
-					defaultValue: undefined,
-					order: undefined,
-				}),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.defaultValue).toBe('hello');
-		});
-
-		it('does not overwrite an existing defaultValue', () => {
-			const { transformDashboardVariables } = setupHook();
-			const dashboard = makeDashboard({
-				v1: makeVariable({
-					id: 'id1',
-					name: 'v1',
-					type: 'TEXTBOX',
-					textboxValue: 'old',
-					defaultValue: 'keep',
-					order: undefined,
-				}),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.defaultValue).toBe('keep');
-		});
-	});
-
-	describe('localStorage merge', () => {
-		it('applies localStorage selectedValue over DB value', () => {
-			const { transformDashboardVariables } = setupHook({
-				env: { selectedValue: 'staging', allSelected: false },
-			});
-			const dashboard = makeDashboard({
-				v1: makeVariable({ id: 'id1', name: 'env', selectedValue: 'prod' }),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.selectedValue).toBe('staging');
-		});
-
-		it('applies localStorage allSelected over DB value', () => {
-			const { transformDashboardVariables } = setupHook({
-				env: { selectedValue: undefined, allSelected: true },
-			});
-			const dashboard = makeDashboard({
-				v1: makeVariable({
-					id: 'id1',
-					name: 'env',
-					allSelected: false,
-					showALLOption: true,
-				}),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.allSelected).toBe(true);
-		});
-	});
-
-	describe('URL variable override', () => {
-		it('sets allSelected=true when URL value is __ALL__', () => {
-			const { transformDashboardVariables } = setupHook(
-				{ env: { selectedValue: 'prod', allSelected: false } },
-				{ env: '__ALL__' },
-			);
-			const dashboard = makeDashboard({
-				v1: makeVariable({
-					id: 'id1',
-					name: 'env',
-					showALLOption: true,
-					allSelected: false,
-				}),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.allSelected).toBe(true);
-		});
-
-		it('sets selectedValue from URL and clears allSelected when showALLOption is true', () => {
-			const { transformDashboardVariables } = setupHook(
-				{ env: { selectedValue: undefined, allSelected: true } },
-				{ env: 'dev' },
-			);
-			const dashboard = makeDashboard({
-				v1: makeVariable({
-					id: 'id1',
-					name: 'env',
-					showALLOption: true,
-					allSelected: true,
-					multiSelect: false,
-				}),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.selectedValue).toBe('dev');
-			expect(result.data.variables.v1.allSelected).toBe(false);
-		});
-
-		it('does not set allSelected=false when showALLOption is false', () => {
-			const { transformDashboardVariables } = setupHook(
-				{ env: { selectedValue: undefined, allSelected: true } },
-				{ env: 'dev' },
-			);
-			const dashboard = makeDashboard({
-				v1: makeVariable({
-					id: 'id1',
-					name: 'env',
-					showALLOption: false,
-					allSelected: true,
-					multiSelect: false,
-				}),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.selectedValue).toBe('dev');
-			expect(result.data.variables.v1.allSelected).toBe(true);
-		});
-
-		it('normalizes array URL value to single value for single-select variable', () => {
-			const { transformDashboardVariables } = setupHook(
-				{},
-				{ env: ['prod', 'dev'] },
-			);
-			const dashboard = makeDashboard({
-				v1: makeVariable({
-					id: 'id1',
-					name: 'env',
-					multiSelect: false,
-				}),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.selectedValue).toBe('prod');
-		});
-
-		it('wraps single URL value in array for multi-select variable', () => {
-			const { transformDashboardVariables } = setupHook({}, { env: 'prod' });
-			const dashboard = makeDashboard({
-				v1: makeVariable({
-					id: 'id1',
-					name: 'env',
-					multiSelect: true,
-				}),
-			});
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.selectedValue).toEqual(['prod']);
-		});
-
-		it('looks up URL variable by variable id when name is absent', () => {
-			const { transformDashboardVariables } = setupHook(
-				{},
-				{ 'var-uuid': 'fallback' },
-			);
-			const variable = makeVariable({ id: 'var-uuid', multiSelect: false });
-			delete variable.name;
-			const dashboard = makeDashboard({ v1: variable });
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables.v1.selectedValue).toBe('fallback');
-		});
-	});
-
-	describe('edge cases', () => {
-		it('returns data unchanged when there are no variables', () => {
-			const { transformDashboardVariables } = setupHook();
-			const dashboard = makeDashboard({});
-
-			const result = transformDashboardVariables(dashboard);
-
-			expect(result.data.variables).toEqual({});
-		});
-
-		it('does not mutate the original dashboard', () => {
-			const { transformDashboardVariables } = setupHook({
-				env: { selectedValue: 'staging', allSelected: false },
-			});
-			const dashboard = makeDashboard({
-				v1: makeVariable({ id: 'id1', name: 'env', selectedValue: 'prod' }),
-			});
-			const originalValue = dashboard.data.variables.v1.selectedValue;
-
-			transformDashboardVariables(dashboard);
-
-			expect(dashboard.data.variables.v1.selectedValue).toBe(originalValue);
-		});
-	});
-});

frontend/src/hooks/dashboard/useDashboardFromLocalStorage.tsx

@@ -15,7 +15,7 @@ interface DashboardLocalStorageVariables {
 	[id: string]: LocalStoreDashboardVariables;
 }
 
-export interface UseDashboardVariablesFromLocalStorageReturn {
+interface UseDashboardVariablesFromLocalStorageReturn {
 	currentDashboard: LocalStoreDashboardVariables;
 	updateLocalStorageDashboardVariables: (
 		id: string,

frontend/src/hooks/dashboard/useTransformDashboardVariables.ts

@@ -1,128 +0,0 @@
-import { ALL_SELECTED_VALUE } from 'components/NewSelect/utils';
-import {
-	useDashboardVariablesFromLocalStorage,
-	UseDashboardVariablesFromLocalStorageReturn,
-} from 'hooks/dashboard/useDashboardFromLocalStorage';
-import useVariablesFromUrl, {
-	UseVariablesFromUrlReturn,
-} from 'hooks/dashboard/useVariablesFromUrl';
-import { isEmpty } from 'lodash-es';
-import { normalizeUrlValueForVariable } from 'providers/Dashboard/normalizeUrlValue';
-import { Dashboard, IDashboardVariable } from 'types/api/dashboard/getAll';
-import { v4 as generateUUID } from 'uuid';
-
-export function useTransformDashboardVariables(
-	dashboardId: string,
-): Pick<UseVariablesFromUrlReturn, 'getUrlVariables' | 'updateUrlVariable'> &
-	UseDashboardVariablesFromLocalStorageReturn & {
-		transformDashboardVariables: (data: Dashboard) => Dashboard;
-	} {
-	const {
-		currentDashboard,
-		updateLocalStorageDashboardVariables,
-	} = useDashboardVariablesFromLocalStorage(dashboardId);
-	const { getUrlVariables, updateUrlVariable } = useVariablesFromUrl();
-
-	const mergeDBWithLocalStorage = (
-		data: Dashboard,
-		localStorageVariables: any,
-	): Dashboard => {
-		const updatedData = data;
-		if (data && localStorageVariables) {
-			const updatedVariables = data.data.variables;
-			const variablesFromUrl = getUrlVariables();
-			Object.keys(data.data.variables).forEach((variable) => {
-				const variableData = data.data.variables[variable];
-
-				// values from url
-				const urlVariable = variableData?.name
-					? variablesFromUrl[variableData?.name] || variablesFromUrl[variableData.id]
-					: variablesFromUrl[variableData.id];
-
-				let updatedVariable = {
-					...data.data.variables[variable],
-					...localStorageVariables[variableData.name as any],
-				};
-
-				// respect the url variable if it is set, override the others
-				if (!isEmpty(urlVariable)) {
-					if (urlVariable === ALL_SELECTED_VALUE) {
-						updatedVariable = {
-							...updatedVariable,
-							allSelected: true,
-						};
-					} else {
-						// Normalize URL value to match variable's multiSelect configuration
-						const normalizedValue = normalizeUrlValueForVariable(
-							urlVariable,
-							variableData,
-						);
-
-						updatedVariable = {
-							...updatedVariable,
-							selectedValue: normalizedValue,
-							// Only set allSelected to false if showALLOption is available
-							...(updatedVariable?.showALLOption && { allSelected: false }),
-						};
-					}
-				}
-
-				updatedVariables[variable] = updatedVariable;
-			});
-			updatedData.data.variables = updatedVariables;
-		}
-		return updatedData;
-	};
-
-	// As we do not have order and ID's in the variables object, we have to process variables to add order and ID if they do not exist in the variables object
-	// eslint-disable-next-line sonarjs/cognitive-complexity
-	const transformDashboardVariables = (data: Dashboard): Dashboard => {
-		if (data && data.data && data.data.variables) {
-			const clonedDashboardData = mergeDBWithLocalStorage(
-				JSON.parse(JSON.stringify(data)),
-				currentDashboard,
-			);
-			const { variables } = clonedDashboardData.data;
-			const existingOrders: Set<number> = new Set();
-
-			for (const key in variables) {
-				// eslint-disable-next-line no-prototype-builtins
-				if (variables.hasOwnProperty(key)) {
-					const variable: IDashboardVariable = variables[key];
-
-					// Check if 'order' property doesn't exist or is undefined
-					if (variable.order === undefined) {
-						// Find a unique order starting from 0
-						let order = 0;
-						while (existingOrders.has(order)) {
-							order += 1;
-						}
-
-						variable.order = order;
-						existingOrders.add(order);
-						// ! BWC - Specific case for backward compatibility where textboxValue was used instead of defaultValue
-						if (variable.type === 'TEXTBOX' && !variable.defaultValue) {
-							variable.defaultValue = variable.textboxValue || '';
-						}
-					}
-
-					if (variable.id === undefined) {
-						variable.id = generateUUID();
-					}
-				}
-			}
-
-			return clonedDashboardData;
-		}
-
-		return data;
-	};
-
-	return {
-		transformDashboardVariables,
-		getUrlVariables,
-		updateUrlVariable,
-		currentDashboard,
-		updateLocalStorageDashboardVariables,
-	};
-}

frontend/src/hooks/dashboard/useUpdateDashboard.tsx

@@ -1,5 +1,6 @@
 import { useMutation, UseMutationResult } from 'react-query';
 import update from 'api/v1/dashboards/id/update';
+import dayjs from 'dayjs';
 import { useDashboard } from 'providers/Dashboard/Dashboard';
 import { useErrorModal } from 'providers/ErrorModalProvider';
 import { SuccessResponseV2 } from 'types/api';
@@ -8,12 +9,12 @@ import { Props } from 'types/api/dashboard/update';
 import APIError from 'types/api/error';
 
 export const useUpdateDashboard = (): UseUpdateDashboard => {
-	const { setSelectedDashboard } = useDashboard();
+	const { updatedTimeRef } = useDashboard();
 	const { showErrorModal } = useErrorModal();
 	return useMutation(update, {
 		onSuccess: (data) => {
 			if (data.data) {
-				setSelectedDashboard(data.data);
+				updatedTimeRef.current = dayjs(data.data.updatedAt);
 			}
 		},
 		onError: (error) => {

frontend/src/hooks/dashboard/useVariablesFromUrl.tsx

@@ -11,7 +11,7 @@ export interface LocalStoreDashboardVariables {
 		| IDashboardVariable['selectedValue'];
 }
 
-export interface UseVariablesFromUrlReturn {
+interface UseVariablesFromUrlReturn {
 	getUrlVariables: () => LocalStoreDashboardVariables;
 	setUrlVariables: (variables: LocalStoreDashboardVariables) => void;
 	updateUrlVariable: (

frontend/src/hooks/queryBuilder/useCreateAlerts.tsx

@@ -107,6 +107,7 @@ const useCreateAlerts = (widget?: Widgets, caller?: string): VoidFunction => {
 		queryRangeMutation,
 		dashboardVariables,
 		dashboardDynamicVariables,
+		selectedDashboard?.data.version,
 		widget,
 	]);
 };

frontend/src/hooks/trace/useGetTraceFlamegraph.tsx

@@ -16,7 +16,7 @@ const useGetTraceFlamegraph = (
 		queryKey: [
 			REACT_QUERY_KEY.GET_TRACE_V2_FLAMEGRAPH,
 			props.traceId,
-			props.selectedSpanId,
+			// props.selectedSpanId,
 		],
 		enabled: !!props.traceId,
 		keepPreviousData: true,

frontend/src/hooks/useAuthZ/permissions.type.ts

@@ -23,10 +23,10 @@ export default {
 		relations: {
 			assignee: ['role'],
 			create: ['metaresources'],
-			delete: ['user', 'serviceaccount', 'role', 'organization', 'metaresource'],
+			delete: ['user', 'role', 'organization', 'metaresource'],
 			list: ['metaresources'],
-			read: ['user', 'serviceaccount', 'role', 'organization', 'metaresource'],
-			update: ['user', 'serviceaccount', 'role', 'organization', 'metaresource'],
+			read: ['user', 'role', 'organization', 'metaresource'],
+			update: ['user', 'role', 'organization', 'metaresource'],
 		},
 	},
 } as const;

frontend/src/lib/uPlotLib/utils/generateColor.ts

@@ -7,6 +7,23 @@ export function hashFn(str: string): number {
 	return hash >>> 0;
 }
 
+export function colorToRgb(color: string): string {
+	// Handle hex colors
+	const hexMatch = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(color);
+	if (hexMatch) {
+		return `${parseInt(hexMatch[1], 16)}, ${parseInt(
+			hexMatch[2],
+			16,
+		)}, ${parseInt(hexMatch[3], 16)}`;
+	}
+	// Handle rgb() colors
+	const rgbMatch = /^rgb\((\d+),\s*(\d+),\s*(\d+)\)$/.exec(color);
+	if (rgbMatch) {
+		return `${rgbMatch[1]}, ${rgbMatch[2]}, ${rgbMatch[3]}`;
+	}
+	return '136, 136, 136';
+}
+
 export function generateColor(
 	key: string,
 	colorMap: Record<string, string>,

frontend/src/pages/DashboardPage/index.tsx

@@ -1,16 +1,3 @@
-import { useParams } from 'react-router-dom';
-import { DashboardProvider } from 'providers/Dashboard/Dashboard';
-
 import DashboardPage from './DashboardPage';
 
-function DashboardPageWithProvider(): JSX.Element {
-	const { dashboardId } = useParams<{ dashboardId: string }>();
-
-	return (
-		<DashboardProvider dashboardId={dashboardId}>
-			<DashboardPage />
-		</DashboardProvider>
-	);
-}
-
-export default DashboardPageWithProvider;
+export default DashboardPage;

frontend/src/pages/DashboardWidget/__tests__/DashboardWidget.test.tsx

@@ -1,146 +0,0 @@
-import { Route } from 'react-router-dom';
-import { PANEL_TYPES } from 'constants/queryBuilder';
-import { rest, server } from 'mocks-server/server';
-import { render, screen, waitFor } from 'tests/test-utils';
-
-import DashboardWidget from '../index';
-
-const DASHBOARD_ID = 'dash-1';
-const WIDGET_ID = 'widget-abc';
-
-const mockDashboardResponse = {
-	status: 'success',
-	data: {
-		id: DASHBOARD_ID,
-		createdAt: '2024-01-01T00:00:00Z',
-		createdBy: 'test',
-		updatedAt: '2024-01-01T00:00:00Z',
-		updatedBy: 'test',
-		isLocked: false,
-		data: {
-			collapsableRowsMigrated: true,
-			description: '',
-			name: '',
-			panelMap: {},
-			tags: [],
-			title: 'Test Dashboard',
-			uploadedGrafana: false,
-			uuid: '',
-			version: '',
-			variables: {},
-			widgets: [],
-			layout: [],
-		},
-	},
-};
-
-const mockSafeNavigate = jest.fn();
-
-jest.mock('hooks/useSafeNavigate', () => ({
-	useSafeNavigate: (): { safeNavigate: jest.Mock } => ({
-		safeNavigate: mockSafeNavigate,
-	}),
-}));
-
-jest.mock('container/NewWidget', () => ({
-	__esModule: true,
-	default: (): JSX.Element => <div data-testid="new-widget">NewWidget</div>,
-}));
-
-// nuqs's useQueryState doesn't read from MemoryRouter, so we mock it to return
-// controlled values via the `mockQueryState` map below.
-const mockQueryState: Record<string, string | null> = {};
-
-jest.mock('nuqs', () => ({
-	...jest.requireActual('nuqs'),
-	useQueryState: (key: string): [string | null, jest.Mock] => [
-		mockQueryState[key] ?? null,
-		jest.fn(),
-	],
-}));
-
-// Wrap component in a Route so useParams can resolve dashboardId
-function renderAtRoute(
-	queryState: Record<string, string | null> = {},
-): ReturnType<typeof render> {
-	Object.assign(mockQueryState, queryState);
-	return render(
-		<Route path="/dashboard/:dashboardId/new">
-			<DashboardWidget />
-		</Route>,
-		undefined,
-		{ initialRoute: `/dashboard/${DASHBOARD_ID}/new` },
-	);
-}
-
-beforeEach(() => {
-	mockSafeNavigate.mockClear();
-	Object.keys(mockQueryState).forEach((k) => delete mockQueryState[k]);
-});
-
-describe('DashboardWidget', () => {
-	it('redirects to dashboard when widgetId is missing', async () => {
-		renderAtRoute({ graphType: PANEL_TYPES.TIME_SERIES });
-
-		await waitFor(() => {
-			expect(mockSafeNavigate).toHaveBeenCalled();
-		});
-
-		const [navigatedTo] = mockSafeNavigate.mock.calls[0];
-		expect(navigatedTo).toContain(`/dashboard/${DASHBOARD_ID}`);
-	});
-
-	it('redirects to dashboard when graphType is missing', async () => {
-		renderAtRoute({ widgetId: WIDGET_ID });
-
-		await waitFor(() => {
-			expect(mockSafeNavigate).toHaveBeenCalled();
-		});
-
-		const [navigatedTo] = mockSafeNavigate.mock.calls[0];
-		expect(navigatedTo).toContain(`/dashboard/${DASHBOARD_ID}`);
-	});
-
-	it('shows spinner while dashboard is loading', () => {
-		server.use(
-			rest.get(
-				`http://localhost/api/v1/dashboards/${DASHBOARD_ID}`,
-				(_req, res, ctx) => res(ctx.delay('infinite')),
-			),
-		);
-
-		renderAtRoute({ widgetId: WIDGET_ID, graphType: PANEL_TYPES.TIME_SERIES });
-
-		expect(screen.getByRole('img', { name: 'loading' })).toBeInTheDocument();
-	});
-
-	it('shows error message when dashboard fetch fails', async () => {
-		server.use(
-			rest.get(
-				`http://localhost/api/v1/dashboards/${DASHBOARD_ID}`,
-				(_req, res, ctx) => res(ctx.status(500), ctx.json({ status: 'error' })),
-			),
-		);
-
-		renderAtRoute({ widgetId: WIDGET_ID, graphType: PANEL_TYPES.TIME_SERIES });
-
-		await waitFor(() => {
-			expect(screen.getByText('Something went wrong')).toBeInTheDocument();
-		});
-	});
-
-	it('renders NewWidget when dashboard loads successfully', async () => {
-		server.use(
-			rest.get(
-				`http://localhost/api/v1/dashboards/${DASHBOARD_ID}`,
-				(_req, res, ctx) => res(ctx.status(200), ctx.json(mockDashboardResponse)),
-			),
-		);
-
-		renderAtRoute({ widgetId: WIDGET_ID, graphType: PANEL_TYPES.TIME_SERIES });
-
-		await waitFor(() => {
-			expect(screen.getByTestId('new-widget')).toBeInTheDocument();
-		});
-	});
-});

frontend/src/pages/DashboardWidget/index.tsx

@@ -1,98 +1,50 @@
 import { useEffect, useState } from 'react';
-import { useQuery } from 'react-query';
-import { generatePath, useParams } from 'react-router-dom';
+import { generatePath, useLocation, useParams } from 'react-router-dom';
 import { Card, Typography } from 'antd';
-import getDashboard from 'api/v1/dashboards/id/get';
 import Spinner from 'components/Spinner';
 import { SOMETHING_WENT_WRONG } from 'constants/api';
 import { PANEL_TYPES } from 'constants/queryBuilder';
-import { DASHBOARD_CACHE_TIME } from 'constants/queryCacheTime';
-import { REACT_QUERY_KEY } from 'constants/reactQueryKeys';
 import ROUTES from 'constants/routes';
 import NewWidget from 'container/NewWidget';
 import { isDrilldownEnabled } from 'container/QueryTable/Drilldown/drilldownUtils';
-import { useTransformDashboardVariables } from 'hooks/dashboard/useTransformDashboardVariables';
 import { useSafeNavigate } from 'hooks/useSafeNavigate';
-import { parseAsStringEnum, useQueryState } from 'nuqs';
-import { setDashboardVariablesStore } from 'providers/Dashboard/store/dashboardVariables/dashboardVariablesStore';
-import { Dashboard } from 'types/api/dashboard/getAll';
+import useUrlQuery from 'hooks/useUrlQuery';
+import { useDashboard } from 'providers/Dashboard/Dashboard';
+import { Widgets } from 'types/api/dashboard/getAll';
 
 function DashboardWidget(): JSX.Element | null {
-	const { dashboardId } = useParams<{
-		dashboardId: string;
-	}>();
-	const [widgetId] = useQueryState('widgetId');
-	const [graphType] = useQueryState(
-		'graphType',
-		parseAsStringEnum<PANEL_TYPES>(Object.values(PANEL_TYPES)),
-	);
-
+	const { search } = useLocation();
+	const { dashboardId } = useParams<DashboardWidgetPageParams>();
 	const { safeNavigate } = useSafeNavigate();
 
+	const [selectedGraph, setSelectedGraph] = useState<PANEL_TYPES>();
+
+	const { selectedDashboard, dashboardResponse } = useDashboard();
+
+	const params = useUrlQuery();
+
+	const widgetId = params.get('widgetId');
+	const { data } = selectedDashboard || {};
+	const { widgets } = data || {};
+
+	const selectedWidget = widgets?.find((e) => e.id === widgetId) as Widgets;
+
 	useEffect(() => {
-		if (!graphType || !widgetId) {
+		const params = new URLSearchParams(search);
+		const graphType = params.get('graphType') as PANEL_TYPES | null;
+
+		if (graphType === null) {
 			safeNavigate(generatePath(ROUTES.DASHBOARD, { dashboardId }));
-		} else if (!dashboardId) {
-			safeNavigate(ROUTES.HOME);
+		} else {
+			setSelectedGraph(graphType);
 		}
-	}, [graphType, widgetId, dashboardId, safeNavigate]);
+	}, [dashboardId, safeNavigate, search]);
 
-	if (!widgetId || !graphType) {
-		return null;
-	}
-
-	return (
-		<DashboardWidgetInternal
-			dashboardId={dashboardId}
-			widgetId={widgetId}
-			graphType={graphType}
-		/>
-	);
-}
-
-function DashboardWidgetInternal({
-	dashboardId,
-	widgetId,
-	graphType,
-}: {
-	dashboardId: string;
-	widgetId: string;
-	graphType: PANEL_TYPES;
-}): JSX.Element | null {
-	const [selectedDashboard, setSelectedDashboard] = useState<
-		Dashboard | undefined
-	>(undefined);
-
-	const { transformDashboardVariables } = useTransformDashboardVariables(
-		dashboardId,
-	);
-
-	const {
-		isFetching: isFetchingDashboardResponse,
-		isError: isErrorDashboardResponse,
-	} = useQuery([REACT_QUERY_KEY.DASHBOARD_BY_ID, dashboardId, widgetId], {
-		enabled: true,
-		queryFn: async () =>
-			await getDashboard({
-				id: dashboardId,
-			}),
-		refetchOnWindowFocus: false,
-		cacheTime: DASHBOARD_CACHE_TIME,
-		onSuccess: (response) => {
-			const updatedDashboardData = transformDashboardVariables(response.data);
-			setSelectedDashboard(updatedDashboardData);
-			setDashboardVariablesStore({
-				dashboardId,
-				variables: updatedDashboardData.data.variables,
-			});
-		},
-	});
-
-	if (isFetchingDashboardResponse) {
+	if (selectedGraph === undefined || dashboardResponse.isLoading) {
 		return <Spinner tip="Loading.." />;
 	}
 
-	if (isErrorDashboardResponse) {
+	if (dashboardResponse.isError) {
 		return (
 			<Card>
 				<Typography>{SOMETHING_WENT_WRONG}</Typography>
@@ -102,11 +54,16 @@ function DashboardWidgetInternal({
 
 	return (
 		<NewWidget
-			dashboardId={dashboardId}
-			selectedGraph={graphType}
+			yAxisUnit={selectedWidget?.yAxisUnit}
+			selectedGraph={selectedGraph}
+			fillSpans={selectedWidget?.fillSpans}
 			enableDrillDown={isDrilldownEnabled()}
-			selectedDashboard={selectedDashboard}
 		/>
 	);
 }
+
+export interface DashboardWidgetPageParams {
+	dashboardId: string;
+}
+
 export default DashboardWidget;

frontend/src/pages/DashboardsListPage/__tests__/DashboardListPage.test.tsx

@@ -8,6 +8,7 @@ import {
 } from 'mocks-server/__mockdata__/dashboards';
 import { server } from 'mocks-server/server';
 import { rest } from 'msw';
+import { DashboardProvider } from 'providers/Dashboard/Dashboard';
 import { fireEvent, render, waitFor } from 'tests/test-utils';
 
 jest.mock('container/DashboardContainer/DashboardDescription/utils', () => ({
@@ -18,6 +19,11 @@ jest.mock('container/DashboardContainer/DashboardDescription/utils', () => ({
 jest.mock('react-router-dom', () => ({
 	...jest.requireActual('react-router-dom'),
 	useLocation: jest.fn(),
+	useRouteMatch: jest.fn().mockReturnValue({
+		params: {
+			dashboardId: 4,
+		},
+	}),
 }));
 
 const mockWindowOpen = jest.fn();
@@ -41,7 +47,9 @@ describe('dashboard list page', () => {
 			<MemoryRouter
 				initialEntries={['/dashbords?columnKey=asgard&order=stones&page=1']}
 			>
-				<DashboardsList />
+				<DashboardProvider>
+					<DashboardsList />
+				</DashboardProvider>
 			</MemoryRouter>,
 		);
 
@@ -63,7 +71,9 @@ describe('dashboard list page', () => {
 			<MemoryRouter
 				initialEntries={['/dashbords?columnKey=createdAt&order=descend&page=1']}
 			>
-				<DashboardsList />
+				<DashboardProvider>
+					<DashboardsList />
+				</DashboardProvider>
 			</MemoryRouter>,
 		);
 
@@ -82,7 +92,9 @@ describe('dashboard list page', () => {
 					'/dashbords?columnKey=createdAt&order=descend&page=1&search=tho',
 				]}
 			>
-				<DashboardsList />
+				<DashboardProvider>
+					<DashboardsList />
+				</DashboardProvider>
 			</MemoryRouter>,
 		);
 
@@ -123,7 +135,9 @@ describe('dashboard list page', () => {
 					'/dashbords?columnKey=createdAt&order=descend&page=1&search=tho',
 				]}
 			>
-				<DashboardsList />
+				<DashboardProvider>
+					<DashboardsList />
+				</DashboardProvider>
 			</MemoryRouter>,
 		);
 
@@ -150,7 +164,9 @@ describe('dashboard list page', () => {
 					'/dashbords?columnKey=createdAt&order=descend&page=1&search=tho',
 				]}
 			>
-				<DashboardsList />
+				<DashboardProvider>
+					<DashboardsList />
+				</DashboardProvider>
 			</MemoryRouter>,
 		);
 
@@ -180,7 +196,9 @@ describe('dashboard list page', () => {
 					'/dashbords?columnKey=createdAt&order=descend&page=1&search=tho',
 				]}
 			>
-				<DashboardsList />
+				<DashboardProvider>
+					<DashboardsList />
+				</DashboardProvider>
 			</MemoryRouter>,
 		);
 

frontend/src/pages/Settings/Settings.tsx

@@ -63,7 +63,6 @@ function SettingsPage(): JSX.Element {
 						isAdmin &&
 						(item.key === ROUTES.BILLING ||
 							item.key === ROUTES.ORG_SETTINGS ||
-							item.key === ROUTES.MEMBERS_SETTINGS ||
 							item.key === ROUTES.MY_SETTINGS ||
 							item.key === ROUTES.SHORTCUTS)
 					),

frontend/src/pages/Settings/utils.ts

@@ -36,7 +36,6 @@ export const getRoutes = (
 	if (isWorkspaceBlocked && isAdmin) {
 		settings.push(
 			...organizationSettings(t),
-			...membersSettings(t),
 			...mySettings(t),
 			...billingSettings(t),
 			...keyboardShortcuts(t),

frontend/src/pages/TraceDetailV2/index.tsx

@@ -4,19 +4,11 @@ import ROUTES from 'constants/routes';
 import history from 'lib/history';
 import { Compass, Cone, TowerControl } from 'lucide-react';
 
-import TraceDetailsV2 from './TraceDetailV2';
+import TraceDetailsV3 from '../TraceDetailsV3';
 
 import './TraceDetailV2.styles.scss';
 
-interface INewTraceDetailProps {
-	items: {
-		label: JSX.Element;
-		key: string;
-		children: JSX.Element;
-	}[];
-}
-
-function NewTraceDetail(props: INewTraceDetailProps): JSX.Element {
+function NewTraceDetail(props: any): JSX.Element {
 	const { items } = props;
 	return (
 		<div className="traces-module-container">
@@ -50,7 +42,7 @@ export default function TraceDetailsPage(): JSX.Element {
 				</div>
 			),
 			key: 'trace-details',
-			children: <TraceDetailsV2 />,
+			children: <TraceDetailsV3 />,
 		},
 		{
 			label: (

frontend/src/pages/TraceDetailsV3/SpanHoverCard/SpanHoverCard.styles.scss

@@ -0,0 +1,28 @@
+.span-hover-card-popover {
+	.ant-popover-inner {
+		background-color: rgba(30, 30, 30, 0.95);
+		padding: 8px 12px;
+		border-radius: 4px;
+		box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
+		border: none;
+	}
+
+	.ant-popover-inner-content {
+		padding: 0;
+	}
+}
+
+.span-hover-card-content {
+	font-family: Inter, sans-serif;
+	font-size: 12px;
+	color: #fff;
+
+	&__name {
+		font-weight: 600;
+		margin-bottom: 4px;
+	}
+
+	&__row {
+		line-height: 1.5;
+	}
+}

frontend/src/pages/TraceDetailsV3/SpanHoverCard/SpanHoverCard.tsx

@@ -0,0 +1,94 @@
+import { ReactNode } from 'react';
+import { Popover } from 'antd';
+import { themeColors } from 'constants/theme';
+import { convertTimeToRelevantUnit } from 'container/TraceDetail/utils';
+import { generateColor } from 'lib/uPlotLib/utils/generateColor';
+import { Span } from 'types/api/trace/getTraceV2';
+import { toFixed } from 'utils/toFixed';
+
+import './SpanHoverCard.styles.scss';
+
+interface ITraceMetadata {
+	startTime: number;
+	endTime: number;
+}
+
+export interface SpanTooltipContentProps {
+	spanName: string;
+	color: string;
+	hasError: boolean;
+	relativeStartMs: number;
+	durationMs: number;
+}
+
+export function SpanTooltipContent({
+	spanName,
+	color,
+	hasError,
+	relativeStartMs,
+	durationMs,
+}: SpanTooltipContentProps): JSX.Element {
+	const { time: formattedDuration, timeUnitName } = convertTimeToRelevantUnit(
+		durationMs,
+	);
+
+	return (
+		<div className="span-hover-card-content">
+			<div className="span-hover-card-content__name" style={{ color }}>
+				{spanName}
+			</div>
+			<div className="span-hover-card-content__row">
+				Status: {hasError ? 'error' : 'ok'}
+			</div>
+			<div className="span-hover-card-content__row">
+				Start: {toFixed(relativeStartMs, 2)} ms
+			</div>
+			<div className="span-hover-card-content__row">
+				Duration: {toFixed(formattedDuration, 2)} {timeUnitName}
+			</div>
+		</div>
+	);
+}
+
+interface SpanHoverCardProps {
+	span: Span;
+	traceMetadata: ITraceMetadata;
+	children: ReactNode;
+}
+
+function SpanHoverCard({
+	span,
+	traceMetadata,
+	children,
+}: SpanHoverCardProps): JSX.Element {
+	const durationMs = span.durationNano / 1e6;
+	const relativeStartMs = span.timestamp - traceMetadata.startTime;
+
+	let color = generateColor(span.serviceName, themeColors.traceDetailColorsV3);
+	if (span.hasError) {
+		color = 'var(--bg-cherry-500)';
+	}
+
+	return (
+		<Popover
+			mouseEnterDelay={0.2}
+			content={
+				<SpanTooltipContent
+					spanName={span.name}
+					color={color}
+					hasError={span.hasError}
+					relativeStartMs={relativeStartMs}
+					durationMs={durationMs}
+				/>
+			}
+			trigger="hover"
+			rootClassName="span-hover-card-popover"
+			autoAdjustOverflow
+			arrow={false}
+		>
+			{children}
+		</Popover>
+	);
+}
+
+export default SpanHoverCard;

frontend/src/pages/TraceDetailsV3/TraceDetailsHeader/TraceDetailsHeader.styles.scss

@@ -0,0 +1,91 @@
+.trace-details-header {
+	display: flex;
+	align-items: center;
+	padding: 0px 16px;
+
+	.previous-btn {
+		display: flex;
+		height: 30px;
+		padding: 6px 8px;
+		align-items: center;
+		gap: 4px;
+		border: 1px solid var(--bg-slate-300);
+		background: var(--bg-slate-500);
+		border-radius: 4px;
+		box-shadow: none;
+	}
+
+	.trace-name {
+		display: flex;
+		padding: 6px 8px;
+		margin-left: 6px;
+		align-items: center;
+		gap: 4px;
+		border: 1px solid var(--bg-slate-300);
+		border-radius: 4px 0px 0px 4px;
+		background: var(--bg-slate-500);
+
+		.drafting {
+			color: white;
+		}
+
+		.trace-id {
+			color: #fff;
+			font-family: Inter;
+			font-size: 13px;
+			font-style: normal;
+			font-weight: 400;
+			line-height: 18px;
+			letter-spacing: -0.07px;
+		}
+	}
+
+	.trace-id-value {
+		display: flex;
+		padding: 6px 8px;
+		justify-content: center;
+		align-items: center;
+		gap: 10px;
+		background: var(--bg-slate-400);
+		color: var(--Vanilla-400, #c0c1c3);
+		font-family: Inter;
+		font-size: 13px;
+		font-style: normal;
+		font-weight: 400;
+		line-height: 18px;
+		letter-spacing: -0.07px;
+		border: 1px solid var(--bg-slate-300);
+		border-left: unset;
+		border-radius: 0px 4px 4px 0px;
+	}
+}
+
+.lightMode {
+	.trace-details-header {
+		.previous-btn {
+			border: 1px solid var(--bg-vanilla-300);
+			background: var(--bg-vanilla-200);
+		}
+
+		.trace-name {
+			border: 1px solid var(--bg-vanilla-300);
+			background: var(--bg-vanilla-200);
+			border-right: none;
+
+			.drafting {
+				color: var(--bg-ink-100);
+			}
+
+			.trace-id {
+				color: var(--bg-ink-100);
+			}
+		}
+
+		.trace-id-value {
+			background: var(--bg-vanilla-300);
+			color: var(--bg-ink-400);
+			border: 1px solid var(--bg-vanilla-300);
+		}
+	}
+}
+// TODO: move to new css module name system

frontend/src/pages/TraceDetailsV3/TraceDetailsHeader/TraceDetailsHeader.tsx

@@ -0,0 +1,38 @@
+import { useCallback } from 'react';
+import { useParams } from 'react-router-dom';
+import { Button, Typography } from 'antd';
+import ROUTES from 'constants/routes';
+import history from 'lib/history';
+import { ArrowLeft } from 'lucide-react';
+import { TraceDetailV2URLProps } from 'types/api/trace/getTraceV2';
+
+import './TraceDetailsHeader.styles.scss';
+
+function TraceDetailsHeader(): JSX.Element {
+	const { id: traceID } = useParams<TraceDetailV2URLProps>();
+
+	const handlePreviousBtnClick = useCallback((): void => {
+		const isSpaNavigate =
+			document.referrer &&
+			new URL(document.referrer).origin === window.location.origin;
+		if (isSpaNavigate) {
+			history.goBack();
+		} else {
+			history.push(ROUTES.TRACES_EXPLORER);
+		}
+	}, []);
+
+	return (
+		<div className="trace-details-header">
+			<Button className="previous-btn" onClick={handlePreviousBtnClick}>
+				<ArrowLeft size={14} />
+			</Button>
+			<div className="trace-name">
+				<Typography.Text className="trace-id">Trace ID</Typography.Text>
+			</div>
+			<Typography.Text className="trace-id-value">{traceID}</Typography.Text>
+		</div>
+	);
+}
+
+export default TraceDetailsHeader;

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/FlamegraphCanvas.tsx

@@ -0,0 +1,234 @@
+import React, { useCallback, useEffect, useRef, useState } from 'react';
+import { createPortal } from 'react-dom';
+import TimelineV3 from 'components/TimelineV3/TimelineV3';
+import { useIsDarkMode } from 'hooks/useDarkMode';
+
+import { SpanTooltipContent } from '../SpanHoverCard/SpanHoverCard';
+import { DEFAULT_ROW_HEIGHT } from './constants';
+import { useCanvasSetup } from './hooks/useCanvasSetup';
+import { useFlamegraphDrag } from './hooks/useFlamegraphDrag';
+import { useFlamegraphDraw } from './hooks/useFlamegraphDraw';
+import { useFlamegraphHover } from './hooks/useFlamegraphHover';
+import { useFlamegraphZoom } from './hooks/useFlamegraphZoom';
+import { useScrollToSpan } from './hooks/useScrollToSpan';
+import { useVisualLayoutWorker } from './hooks/useVisualLayoutWorker';
+import { FlamegraphCanvasProps, SpanRect } from './types';
+
+function FlamegraphCanvas(props: FlamegraphCanvasProps): JSX.Element {
+	const { spans, traceMetadata, firstSpanAtFetchLevel, onSpanClick } = props;
+
+	const isDarkMode = useIsDarkMode(); //TODO: see if can be removed or use a new hook
+	const canvasRef = useRef<HTMLCanvasElement>(null);
+	const containerRef = useRef<HTMLDivElement>(null);
+	const spanRectsRef = useRef<SpanRect[]>([]);
+
+	const [viewStartTs, setViewStartTs] = useState<number>(
+		traceMetadata.startTime,
+	);
+	const [viewEndTs, setViewEndTs] = useState<number>(traceMetadata.endTime);
+	const [scrollTop, setScrollTop] = useState<number>(0);
+	const [rowHeight, setRowHeight] = useState<number>(DEFAULT_ROW_HEIGHT);
+
+	// Mutable refs for zoom and drag hooks to read during rAF / mouse callbacks
+	const viewStartRef = useRef(viewStartTs);
+	const viewEndRef = useRef(viewEndTs);
+	const rowHeightRef = useRef(rowHeight);
+	const scrollTopRef = useRef(scrollTop);
+
+	useEffect(() => {
+		viewStartRef.current = viewStartTs;
+	}, [viewStartTs]);
+
+	useEffect(() => {
+		viewEndRef.current = viewEndTs;
+	}, [viewEndTs]);
+
+	useEffect(() => {
+		rowHeightRef.current = rowHeight;
+	}, [rowHeight]);
+
+	useEffect(() => {
+		scrollTopRef.current = scrollTop;
+	}, [scrollTop]);
+
+	useEffect(() => {
+		//TODO: see if this can be removed as once loaded the view start and end ts will not change
+		setViewStartTs(traceMetadata.startTime);
+		setViewEndTs(traceMetadata.endTime);
+		viewStartRef.current = traceMetadata.startTime;
+		viewEndRef.current = traceMetadata.endTime;
+	}, [traceMetadata.startTime, traceMetadata.endTime]);
+
+	const { layout, isComputing: _isComputing } = useVisualLayoutWorker(spans);
+
+	const totalHeight = layout.totalVisualRows * rowHeight;
+
+	const { isOverFlamegraphRef } = useFlamegraphZoom({
+		canvasRef,
+		traceMetadata,
+		viewStartRef,
+		viewEndRef,
+		rowHeightRef,
+		setViewStartTs,
+		setViewEndTs,
+		setRowHeight,
+	});
+
+	const {
+		handleMouseDown,
+		handleMouseMove: handleDragMouseMove,
+		handleMouseUp,
+		handleDragMouseLeave,
+		suppressClickRef,
+		isDraggingRef,
+	} = useFlamegraphDrag({
+		canvasRef,
+		containerRef,
+		traceMetadata,
+		viewStartRef,
+		viewEndRef,
+		setViewStartTs,
+		setViewEndTs,
+		scrollTopRef,
+		setScrollTop,
+		totalHeight,
+	});
+
+	const {
+		hoveredSpanId,
+		handleHoverMouseMove,
+		handleHoverMouseLeave,
+		handleClick,
+		tooltipContent,
+	} = useFlamegraphHover({
+		canvasRef,
+		spanRectsRef,
+		traceMetadata,
+		viewStartTs,
+		viewEndTs,
+		isDraggingRef,
+		suppressClickRef,
+		onSpanClick,
+		isDarkMode,
+	});
+
+	const { drawFlamegraph } = useFlamegraphDraw({
+		canvasRef,
+		containerRef,
+		spans: layout.visualRows,
+		connectors: layout.connectors,
+		viewStartTs,
+		viewEndTs,
+		scrollTop,
+		rowHeight,
+		selectedSpanId: firstSpanAtFetchLevel || undefined,
+		hoveredSpanId: hoveredSpanId ?? '',
+		isDarkMode,
+		spanRectsRef,
+	});
+
+	useScrollToSpan({
+		firstSpanAtFetchLevel,
+		spans: layout.visualRows,
+		traceMetadata,
+		containerRef,
+		viewStartRef,
+		viewEndRef,
+		scrollTopRef,
+		rowHeight,
+		setViewStartTs,
+		setViewEndTs,
+		setScrollTop,
+	});
+
+	useCanvasSetup(canvasRef, containerRef, drawFlamegraph);
+
+	const handleMouseMove = useCallback(
+		(e: React.MouseEvent): void => {
+			handleDragMouseMove(e);
+			handleHoverMouseMove(e);
+		},
+		[handleDragMouseMove, handleHoverMouseMove],
+	);
+
+	const handleMouseLeave = useCallback((): void => {
+		isOverFlamegraphRef.current = false;
+		handleDragMouseLeave();
+		handleHoverMouseLeave();
+	}, [isOverFlamegraphRef, handleDragMouseLeave, handleHoverMouseLeave]);
+
+	const tooltipElement = tooltipContent
+		? createPortal(
+				<div
+					className="span-hover-card-popover"
+					style={{
+						position: 'fixed',
+						left: Math.min(tooltipContent.clientX + 15, window.innerWidth - 220),
+						top: Math.min(tooltipContent.clientY + 15, window.innerHeight - 100),
+						zIndex: 1000,
+						backgroundColor: 'rgba(30, 30, 30, 0.95)',
+						padding: '8px 12px',
+						borderRadius: 4,
+						boxShadow: '0 2px 8px rgba(0,0,0,0.3)',
+						pointerEvents: 'none',
+					}}
+				>
+					{/* TODO: passing each content is too much, we should use the tooltipContent object directly */}
+					<SpanTooltipContent
+						spanName={tooltipContent.spanName}
+						color={tooltipContent.spanColor}
+						hasError={tooltipContent.status === 'error'}
+						relativeStartMs={tooltipContent.startMs}
+						durationMs={tooltipContent.durationMs}
+					/>
+				</div>,
+				document.body,
+		  )
+		: null;
+
+	return (
+		<div
+			style={{
+				display: 'flex',
+				flexDirection: 'column',
+				height: '100%',
+				padding: '0 15px',
+			}}
+		>
+			{tooltipElement}
+			<TimelineV3
+				startTimestamp={viewStartTs}
+				endTimestamp={viewEndTs}
+				offsetTimestamp={viewStartTs - traceMetadata.startTime}
+				timelineHeight={10}
+			/>
+			<div
+				ref={containerRef}
+				style={{
+					flex: 1,
+					overflow: 'hidden',
+					position: 'relative',
+				}}
+				onMouseEnter={(): void => {
+					isOverFlamegraphRef.current = true;
+				}}
+				onMouseLeave={handleMouseLeave}
+			>
+				<canvas
+					ref={canvasRef}
+					style={{
+						display: 'block',
+						width: '100%',
+						cursor: 'grab',
+					}}
+					onMouseDown={handleMouseDown}
+					onMouseMove={handleMouseMove}
+					onMouseUp={handleMouseUp}
+					onClick={handleClick}
+				/>
+			</div>
+		</div>
+	);
+}
+
+export default FlamegraphCanvas;

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/TraceFlamegraph.tsx

@@ -0,0 +1,107 @@
+import { useCallback, useEffect, useMemo, useState } from 'react';
+import { useHistory, useLocation, useParams } from 'react-router-dom';
+import useGetTraceFlamegraph from 'hooks/trace/useGetTraceFlamegraph';
+import useUrlQuery from 'hooks/useUrlQuery';
+import { TraceDetailFlamegraphURLProps } from 'types/api/trace/getTraceFlamegraph';
+
+import FlamegraphCanvas from './FlamegraphCanvas';
+
+//TODO: analyse if this is needed or not and move to separate file if needed else delete this enum.
+enum TraceFlamegraphState {
+	LOADING = 'LOADING',
+	SUCCESS = 'SUCCESS',
+	NO_DATA = 'NO_DATA',
+	ERROR = 'ERROR',
+	FETCHING_WITH_OLD_DATA = 'FETCHING_WITH_OLD_DATA',
+}
+
+function TraceFlamegraph(): JSX.Element {
+	const { id: traceId } = useParams<TraceDetailFlamegraphURLProps>();
+	const urlQuery = useUrlQuery();
+	const history = useHistory();
+	const { search } = useLocation();
+	const [firstSpanAtFetchLevel, setFirstSpanAtFetchLevel] = useState<string>(
+		urlQuery.get('spanId') || '',
+	);
+
+	useEffect(() => {
+		setFirstSpanAtFetchLevel(urlQuery.get('spanId') || '');
+	}, [urlQuery]);
+
+	const handleSpanClick = useCallback(
+		(spanId: string): void => {
+			setFirstSpanAtFetchLevel(spanId);
+			const searchParams = new URLSearchParams(search);
+			//tood: use from query params constants
+			if (searchParams.get('spanId') !== spanId) {
+				searchParams.set('spanId', spanId);
+				history.replace({ search: searchParams.toString() });
+			}
+		},
+		[history, search],
+	);
+
+	const { data, isFetching, error } = useGetTraceFlamegraph({
+		traceId,
+		// selectedSpanId: firstSpanAtFetchLevel,
+	});
+
+	const flamegraphState = useMemo(() => {
+		if (isFetching) {
+			if (data?.payload?.spans && data.payload.spans.length > 0) {
+				return TraceFlamegraphState.FETCHING_WITH_OLD_DATA;
+			}
+			return TraceFlamegraphState.LOADING;
+		}
+		if (error) {
+			return TraceFlamegraphState.ERROR;
+		}
+		if (data?.payload?.spans && data.payload.spans.length === 0) {
+			return TraceFlamegraphState.NO_DATA;
+		}
+		return TraceFlamegraphState.SUCCESS;
+	}, [error, isFetching, data]);
+
+	const spans = useMemo(() => data?.payload?.spans || [], [
+		data?.payload?.spans,
+	]);
+
+	const content = useMemo(() => {
+		switch (flamegraphState) {
+			case TraceFlamegraphState.LOADING:
+				return <div>Loading...</div>;
+			case TraceFlamegraphState.ERROR:
+				return <div>Error loading flamegraph</div>;
+			case TraceFlamegraphState.NO_DATA:
+				return <div>No data found for trace {traceId}</div>;
+			case TraceFlamegraphState.SUCCESS:
+			case TraceFlamegraphState.FETCHING_WITH_OLD_DATA:
+				return (
+					<FlamegraphCanvas
+						spans={spans}
+						firstSpanAtFetchLevel={firstSpanAtFetchLevel}
+						setFirstSpanAtFetchLevel={setFirstSpanAtFetchLevel}
+						onSpanClick={handleSpanClick}
+						traceMetadata={{
+							startTime: data?.payload?.startTimestampMillis || 0,
+							endTime: data?.payload?.endTimestampMillis || 0,
+						}}
+					/>
+				);
+			default:
+				return <div>Fetching the trace...</div>;
+		}
+	}, [
+		data?.payload?.endTimestampMillis,
+		data?.payload?.startTimestampMillis,
+		firstSpanAtFetchLevel,
+		flamegraphState,
+		spans,
+		traceId,
+		handleSpanClick,
+	]);
+
+	return <>{content}</>;
+}
+
+export default TraceFlamegraph;

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/computeVisualLayout.test.ts

@@ -0,0 +1,475 @@
+import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+
+import { computeVisualLayout } from '../computeVisualLayout';
+
+function makeSpan(
+	overrides: Partial<FlamegraphSpan> & {
+		spanId: string;
+		timestamp: number;
+		durationNano: number;
+	},
+): FlamegraphSpan {
+	return {
+		parentSpanId: '',
+		traceId: 'trace-1',
+		hasError: false,
+		serviceName: 'svc',
+		name: 'op',
+		level: 0,
+		event: [],
+		...overrides,
+	};
+}
+
+describe('computeVisualLayout', () => {
+	it('should handle empty input', () => {
+		const layout = computeVisualLayout([]);
+		expect(layout.totalVisualRows).toBe(0);
+		expect(layout.visualRows).toEqual([]);
+	});
+
+	it('should handle single root, no children — 1 visual row', () => {
+		const root = makeSpan({
+			spanId: 'root',
+			timestamp: 0,
+			durationNano: 100e6,
+		});
+		const layout = computeVisualLayout([[root]]);
+		expect(layout.totalVisualRows).toBe(1);
+		expect(layout.visualRows[0]).toEqual([root]);
+		expect(layout.spanToVisualRow['root']).toBe(0);
+	});
+
+	it('should keep non-overlapping siblings on the same row (compact)', () => {
+		const root = makeSpan({
+			spanId: 'root',
+			timestamp: 0,
+			durationNano: 500e6,
+		});
+		const a = makeSpan({
+			spanId: 'a',
+			parentSpanId: 'root',
+			timestamp: 0,
+			durationNano: 100e6,
+		});
+		const b = makeSpan({
+			spanId: 'b',
+			parentSpanId: 'root',
+			timestamp: 200,
+			durationNano: 100e6,
+		});
+		const c = makeSpan({
+			spanId: 'c',
+			parentSpanId: 'root',
+			timestamp: 400,
+			durationNano: 100e6,
+		});
+
+		const layout = computeVisualLayout([[root], [a, b, c]]);
+
+		// root on row 0, all children on row 1
+		expect(layout.totalVisualRows).toBe(2);
+		expect(layout.spanToVisualRow['root']).toBe(0);
+		expect(layout.spanToVisualRow['a']).toBe(1);
+		expect(layout.spanToVisualRow['b']).toBe(1);
+		expect(layout.spanToVisualRow['c']).toBe(1);
+	});
+
+	it('should pack non-overlapping siblings into shared lanes (greedy packing)', () => {
+		const root = makeSpan({
+			spanId: 'root',
+			timestamp: 0,
+			durationNano: 300e6,
+		});
+		// A and B overlap; C does not overlap with either
+		const a = makeSpan({
+			spanId: 'a',
+			parentSpanId: 'root',
+			timestamp: 0,
+			durationNano: 100e6, // ends at 100ms
+		});
+		const b = makeSpan({
+			spanId: 'b',
+			parentSpanId: 'root',
+			timestamp: 50,
+			durationNano: 100e6, // starts at 50ms < 100ms end of A → overlap → lane 1
+		});
+		const c = makeSpan({
+			spanId: 'c',
+			parentSpanId: 'root',
+			timestamp: 200,
+			durationNano: 100e6, // 200 >= 100, fits lane 0 with A
+		});
+
+		const layout = computeVisualLayout([[root], [a, b, c]]);
+
+		// root on row 0, C placed first (latest) → row 1, B doesn't overlap C → row 1, A overlaps B → row 2
+		expect(layout.totalVisualRows).toBe(3);
+		expect(layout.spanToVisualRow['root']).toBe(0);
+		expect(layout.spanToVisualRow['c']).toBe(1);
+		expect(layout.spanToVisualRow['b']).toBe(1);
+		expect(layout.spanToVisualRow['a']).toBe(2);
+	});
+
+	it('should handle full overlap — all siblings get own row', () => {
+		const root = makeSpan({
+			spanId: 'root',
+			timestamp: 0,
+			durationNano: 200e6,
+		});
+		const a = makeSpan({
+			spanId: 'a',
+			parentSpanId: 'root',
+			timestamp: 0,
+			durationNano: 200e6,
+		});
+		const b = makeSpan({
+			spanId: 'b',
+			parentSpanId: 'root',
+			timestamp: 0,
+			durationNano: 200e6,
+		});
+
+		const layout = computeVisualLayout([[root], [a, b]]);
+
+		expect(layout.totalVisualRows).toBe(3);
+		expect(layout.spanToVisualRow['a']).toBe(1);
+		expect(layout.spanToVisualRow['b']).toBe(2);
+	});
+
+	it('should stack children correctly below overlapping parents', () => {
+		const root = makeSpan({
+			spanId: 'root',
+			timestamp: 0,
+			durationNano: 300e6,
+		});
+		const a = makeSpan({
+			spanId: 'a',
+			parentSpanId: 'root',
+			timestamp: 0,
+			durationNano: 200e6,
+		});
+		const b = makeSpan({
+			spanId: 'b',
+			parentSpanId: 'root',
+			timestamp: 50,
+			durationNano: 200e6,
+		});
+		// Child of A
+		const childA = makeSpan({
+			spanId: 'childA',
+			parentSpanId: 'a',
+			timestamp: 10,
+			durationNano: 50e6,
+		});
+		// Child of B
+		const childB = makeSpan({
+			spanId: 'childB',
+			parentSpanId: 'b',
+			timestamp: 60,
+			durationNano: 50e6,
+		});
+
+		const layout = computeVisualLayout([[root], [a, b], [childA, childB]]);
+
+		// DFS processes b's subtree first (latest):
+		// root → row 0
+		// b → row 1 (parentRow 0 + 1)
+		// childB → row 2 (parentRow 1 + 1)
+		// a → try row 1 (parentRow 0 + 1), overlaps b → try row 2, overlaps childB → row 3
+		// childA → row 4 (parentRow 3 + 1)
+		expect(layout.spanToVisualRow['root']).toBe(0);
+		expect(layout.spanToVisualRow['b']).toBe(1);
+		expect(layout.spanToVisualRow['childB']).toBe(2);
+		expect(layout.spanToVisualRow['a']).toBe(3);
+		expect(layout.spanToVisualRow['childA']).toBe(4);
+		expect(layout.totalVisualRows).toBe(5);
+	});
+
+	it('should handle multiple roots as a sibling group', () => {
+		// Two overlapping roots
+		const r1 = makeSpan({
+			spanId: 'r1',
+			timestamp: 0,
+			durationNano: 100e6,
+		});
+		const r2 = makeSpan({
+			spanId: 'r2',
+			timestamp: 50,
+			durationNano: 100e6,
+		});
+
+		const layout = computeVisualLayout([[r1, r2]]);
+
+		expect(layout.spanToVisualRow['r1']).toBe(0);
+		expect(layout.spanToVisualRow['r2']).toBe(1);
+		expect(layout.totalVisualRows).toBe(2);
+	});
+
+	it('should produce compact layout for deep nesting without overlap', () => {
+		const root = makeSpan({
+			spanId: 'root',
+			timestamp: 0,
+			durationNano: 1000e6,
+		});
+		const child = makeSpan({
+			spanId: 'child',
+			parentSpanId: 'root',
+			timestamp: 10,
+			durationNano: 500e6,
+		});
+		const grandchild = makeSpan({
+			spanId: 'grandchild',
+			parentSpanId: 'child',
+			timestamp: 20,
+			durationNano: 200e6,
+		});
+
+		const layout = computeVisualLayout([[root], [child], [grandchild]]);
+
+		// No overlap at any level → visual rows == tree depth
+		expect(layout.totalVisualRows).toBe(3);
+		expect(layout.spanToVisualRow['root']).toBe(0);
+		expect(layout.spanToVisualRow['child']).toBe(1);
+		expect(layout.spanToVisualRow['grandchild']).toBe(2);
+	});
+
+	it('should pack many sequential siblings into 1 row (no diagonal staircase)', () => {
+		const root = makeSpan({
+			spanId: 'root',
+			timestamp: 0,
+			durationNano: 500e6,
+		});
+		// 6 sequential children — like checkoutservice/PlaceOrder scenario
+		const spans = [
+			makeSpan({
+				spanId: 's1',
+				parentSpanId: 'root',
+				timestamp: 3,
+				durationNano: 30e6,
+			}),
+			makeSpan({
+				spanId: 's2',
+				parentSpanId: 'root',
+				timestamp: 35,
+				durationNano: 4e6,
+			}),
+			makeSpan({
+				spanId: 's3',
+				parentSpanId: 'root',
+				timestamp: 39,
+				durationNano: 1e6,
+			}),
+			makeSpan({
+				spanId: 's4',
+				parentSpanId: 'root',
+				timestamp: 40,
+				durationNano: 4e6,
+			}),
+			makeSpan({
+				spanId: 's5',
+				parentSpanId: 'root',
+				timestamp: 44,
+				durationNano: 5e6,
+			}),
+			makeSpan({
+				spanId: 's6',
+				parentSpanId: 'root',
+				timestamp: 49,
+				durationNano: 1e6,
+			}),
+		];
+
+		const layout = computeVisualLayout([[root], spans]);
+
+		// All 6 sequential siblings should share 1 row
+		expect(layout.totalVisualRows).toBe(2);
+		expect(layout.spanToVisualRow['root']).toBe(0);
+		for (const span of spans) {
+			expect(layout.spanToVisualRow[span.spanId]).toBe(1);
+		}
+	});
+
+	it('should keep children below parents even with misparented spans', () => {
+		// Simulates the dd_sig2 bug: /route spans have parentSpanId pointing
+		// to the wrong ancestor, but they are at level 2 in the spans[][] input.
+		// Level-based packing must place them below level 1 regardless.
+		const httpGet = makeSpan({
+			spanId: 'http-get',
+			timestamp: 0,
+			durationNano: 500e6,
+		});
+		const route = makeSpan({
+			spanId: 'route',
+			parentSpanId: 'some-wrong-ancestor', // misparented!
+			timestamp: 10,
+			durationNano: 200e6,
+		});
+
+		const layout = computeVisualLayout([[httpGet], [route]]);
+
+		// httpGet at level 0 → row 0, route at level 1 → row 1
+		expect(layout.spanToVisualRow['http-get']).toBe(0);
+		expect(layout.spanToVisualRow['route']).toBe(1);
+		expect(layout.totalVisualRows).toBe(2);
+	});
+
+	it('should keep parent-child pairs adjacent when sibling subtrees overlap', () => {
+		// Multiple overlapping parents each with a child — the subtree-unit
+		// guarantee means every parent→child gap should be exactly 1.
+		const root = makeSpan({
+			spanId: 'root',
+			timestamp: 0,
+			durationNano: 500e6,
+		});
+		// Three overlapping HTTP GET children of root, each with its own /route child
+		const get1 = makeSpan({
+			spanId: 'get1',
+			parentSpanId: 'root',
+			timestamp: 0,
+			durationNano: 200e6,
+		});
+		const route1 = makeSpan({
+			spanId: 'route1',
+			parentSpanId: 'get1',
+			timestamp: 10,
+			durationNano: 180e6,
+		});
+		const get2 = makeSpan({
+			spanId: 'get2',
+			parentSpanId: 'root',
+			timestamp: 50,
+			durationNano: 200e6,
+		});
+		const route2 = makeSpan({
+			spanId: 'route2',
+			parentSpanId: 'get2',
+			timestamp: 60,
+			durationNano: 180e6,
+		});
+		const get3 = makeSpan({
+			spanId: 'get3',
+			parentSpanId: 'root',
+			timestamp: 100,
+			durationNano: 200e6,
+		});
+		const route3 = makeSpan({
+			spanId: 'route3',
+			parentSpanId: 'get3',
+			timestamp: 110,
+			durationNano: 180e6,
+		});
+
+		const layout = computeVisualLayout([
+			[root],
+			[get1, get2, get3],
+			[route1, route2, route3],
+		]);
+
+		// Each parent-child pair should have a gap of exactly 1
+		const get1Row = layout.spanToVisualRow['get1'];
+		const route1Row = layout.spanToVisualRow['route1'];
+		const get2Row = layout.spanToVisualRow['get2'];
+		const route2Row = layout.spanToVisualRow['route2'];
+		const get3Row = layout.spanToVisualRow['get3'];
+		const route3Row = layout.spanToVisualRow['route3'];
+
+		expect(route1Row - get1Row).toBe(1);
+		expect(route2Row - get2Row).toBe(1);
+		expect(route3Row - get3Row).toBe(1);
+	});
+
+	it('should handle mixed levels — overlap at level 2 but not level 1', () => {
+		const root = makeSpan({
+			spanId: 'root',
+			timestamp: 0,
+			durationNano: 1000e6,
+		});
+		// Non-overlapping children
+		const a = makeSpan({
+			spanId: 'a',
+			parentSpanId: 'root',
+			timestamp: 0,
+			durationNano: 400e6,
+		});
+		const b = makeSpan({
+			spanId: 'b',
+			parentSpanId: 'root',
+			timestamp: 500,
+			durationNano: 400e6,
+		});
+		// Overlapping grandchildren under A
+		const ga1 = makeSpan({
+			spanId: 'ga1',
+			parentSpanId: 'a',
+			timestamp: 0,
+			durationNano: 200e6,
+		});
+		const ga2 = makeSpan({
+			spanId: 'ga2',
+			parentSpanId: 'a',
+			timestamp: 100,
+			durationNano: 200e6,
+		});
+
+		const layout = computeVisualLayout([[root], [a, b], [ga1, ga2]]);
+
+		// root → row 0
+		// a, b → row 1 (no overlap, share row)
+		// ga1 → row 2, ga2 → row 3 (overlap, expanded)
+		// b has no children, so nothing after ga2
+		expect(layout.spanToVisualRow['root']).toBe(0);
+		expect(layout.spanToVisualRow['a']).toBe(1);
+		expect(layout.spanToVisualRow['b']).toBe(1);
+		expect(layout.spanToVisualRow['ga2']).toBe(2);
+		expect(layout.spanToVisualRow['ga1']).toBe(3);
+		expect(layout.totalVisualRows).toBe(4);
+	});
+
+	it('should not place a span where it covers an existing connector point (Check 2)', () => {
+		// Scenario: root has 3 leaf children. Sorted latest-first: C(200), B(100), A(80).
+		//
+		// C placed at row 1 [200, 400].
+		// B overlaps C → placed at row 2 [100, 300]. Connector from row 0→2 at x=100
+		//   passes through row 1, recording connector point at (row 1, x=100).
+		// A [80, 110] does NOT overlap C's span [200, 400] at row 1 (110 < 200),
+		//   so without connector reservation A would fit at row 1.
+		//   But A's span [80, 110) contains the connector point x=100 at row 1.
+		//   Check 2 prevents this placement, pushing A further down.
+		const root = makeSpan({
+			spanId: 'root',
+			timestamp: 0,
+			durationNano: 500e6,
+		});
+		const c = makeSpan({
+			spanId: 'c',
+			parentSpanId: 'root',
+			timestamp: 200,
+			durationNano: 200e6, // [200, 400]
+		});
+		const b = makeSpan({
+			spanId: 'b',
+			parentSpanId: 'root',
+			timestamp: 100,
+			durationNano: 200e6, // [100, 300]
+		});
+		const a = makeSpan({
+			spanId: 'a',
+			parentSpanId: 'root',
+			timestamp: 80,
+			durationNano: 30e6, // [80, 110]
+		});
+
+		const layout = computeVisualLayout([[root], [a, b, c]]);
+
+		expect(layout.spanToVisualRow['root']).toBe(0);
+		expect(layout.spanToVisualRow['c']).toBe(1); // latest, placed first
+		expect(layout.spanToVisualRow['b']).toBe(2); // overlaps C → row 2
+
+		// A would fit at row 1 by span overlap alone, but connector point at
+		// (row 1, x=100) falls within A's span [80, 110). Check 2 pushes A down.
+		const aRow = layout.spanToVisualRow['a']!;
+		expect(aRow).toBeGreaterThan(1); // must NOT be at row 1
+		expect(aRow).toBe(3); // next free row after B at row 2 (A overlaps B)
+	});
+});

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/drawUtils.test.ts

@@ -0,0 +1,525 @@
+import { DASHED_BORDER_LINE_DASH, MIN_WIDTH_FOR_NAME } from '../constants';
+import type { FlamegraphRowMetrics } from '../utils';
+import { getFlamegraphRowMetrics } from '../utils';
+import { drawEventDot, drawSpanBar } from '../utils';
+import { MOCK_SPAN } from './testUtils';
+
+jest.mock('container/TraceDetail/utils', () => ({
+	convertTimeToRelevantUnit: (): { time: number; timeUnitName: string } => ({
+		time: 50,
+		timeUnitName: 'ms',
+	}),
+}));
+
+/** Minimal 2D context for createStripePattern's internal canvas (jsdom getContext often returns null) */
+const mockPatternCanvasCtx = {
+	beginPath: jest.fn(),
+	moveTo: jest.fn(),
+	lineTo: jest.fn(),
+	stroke: jest.fn(),
+	globalAlpha: 1,
+};
+
+const originalCreateElement = document.createElement.bind(document);
+document.createElement = function (
+	tagName: string,
+): ReturnType<typeof originalCreateElement> {
+	const el = originalCreateElement(tagName);
+	if (tagName.toLowerCase() === 'canvas') {
+		(el as HTMLCanvasElement).getContext = (() =>
+			mockPatternCanvasCtx as unknown) as HTMLCanvasElement['getContext'];
+	}
+	return el;
+};
+
+function createMockCtx(): jest.Mocked<CanvasRenderingContext2D> {
+	return ({
+		beginPath: jest.fn(),
+		roundRect: jest.fn(),
+		fill: jest.fn(),
+		stroke: jest.fn(),
+		save: jest.fn(),
+		restore: jest.fn(),
+		translate: jest.fn(),
+		rotate: jest.fn(),
+		fillRect: jest.fn(),
+		strokeRect: jest.fn(),
+		setLineDash: jest.fn(),
+		measureText: jest.fn(
+			(text: string) => ({ width: text.length * 6 } as TextMetrics),
+		),
+		createPattern: jest.fn(() => ({} as CanvasPattern)),
+		clip: jest.fn(),
+		rect: jest.fn(),
+		fillText: jest.fn(),
+		font: '',
+		fillStyle: '',
+		strokeStyle: '',
+		textAlign: '',
+		textBaseline: '',
+		lineWidth: 0,
+		globalAlpha: 1,
+	} as unknown) as jest.Mocked<CanvasRenderingContext2D>;
+}
+
+const METRICS: FlamegraphRowMetrics = getFlamegraphRowMetrics(24);
+
+describe('Canvas Draw Utils', () => {
+	describe('drawSpanBar', () => {
+		it('draws rect + fill for normal span (no selected/hovered)', () => {
+			const ctx = createMockCtx();
+			const spanRectsArray: {
+				span: typeof MOCK_SPAN;
+				x: number;
+				y: number;
+				width: number;
+				height: number;
+				level: number;
+			}[] = [];
+
+			drawSpanBar({
+				ctx,
+				span: { ...MOCK_SPAN, event: [] },
+				x: 10,
+				y: 0,
+				width: 100,
+				levelIndex: 0,
+				spanRectsArray,
+				color: '#1890ff',
+				isDarkMode: false,
+				metrics: METRICS,
+			});
+
+			expect(ctx.beginPath).toHaveBeenCalled();
+			expect(ctx.roundRect).toHaveBeenCalledWith(10, 1, 100, 22, 2);
+			expect(ctx.fill).toHaveBeenCalled();
+			expect(ctx.stroke).not.toHaveBeenCalled();
+			expect(spanRectsArray).toHaveLength(1);
+			expect(spanRectsArray[0]).toMatchObject({
+				x: 10,
+				y: 1,
+				width: 100,
+				height: 22,
+				level: 0,
+			});
+		});
+
+		it('uses stripe pattern + dashed stroke + 2px when selected', () => {
+			const ctx = createMockCtx();
+			const spanRectsArray: {
+				span: typeof MOCK_SPAN;
+				x: number;
+				y: number;
+				width: number;
+				height: number;
+				level: number;
+			}[] = [];
+
+			drawSpanBar({
+				ctx,
+				span: { ...MOCK_SPAN, spanId: 'sel', event: [] },
+				x: 20,
+				y: 0,
+				width: 80,
+				levelIndex: 1,
+				spanRectsArray,
+				color: '#2F80ED',
+				isDarkMode: false,
+				metrics: METRICS,
+				selectedSpanId: 'sel',
+			});
+
+			expect(ctx.createPattern).toHaveBeenCalled();
+			expect(ctx.setLineDash).toHaveBeenCalledWith(DASHED_BORDER_LINE_DASH);
+			expect(ctx.strokeStyle).toBe('#2F80ED');
+			expect(ctx.lineWidth).toBe(2);
+			expect(ctx.stroke).toHaveBeenCalled();
+			expect(ctx.setLineDash).toHaveBeenLastCalledWith([]);
+		});
+
+		it('uses stripe pattern + solid stroke + 1px when hovered (not selected)', () => {
+			const ctx = createMockCtx();
+			const spanRectsArray: {
+				span: typeof MOCK_SPAN;
+				x: number;
+				y: number;
+				width: number;
+				height: number;
+				level: number;
+			}[] = [];
+
+			drawSpanBar({
+				ctx,
+				span: { ...MOCK_SPAN, spanId: 'hov', event: [] },
+				x: 30,
+				y: 0,
+				width: 60,
+				levelIndex: 0,
+				spanRectsArray,
+				color: '#2F80ED',
+				isDarkMode: false,
+				metrics: METRICS,
+				hoveredSpanId: 'hov',
+			});
+
+			expect(ctx.createPattern).toHaveBeenCalled();
+			expect(ctx.setLineDash).not.toHaveBeenCalled();
+			expect(ctx.lineWidth).toBe(1);
+			expect(ctx.stroke).toHaveBeenCalled();
+		});
+
+		it('pushes spanRectsArray with correct dimensions', () => {
+			const ctx = createMockCtx();
+			const spanRectsArray: {
+				span: typeof MOCK_SPAN;
+				x: number;
+				y: number;
+				width: number;
+				height: number;
+				level: number;
+			}[] = [];
+
+			drawSpanBar({
+				ctx,
+				span: { ...MOCK_SPAN, spanId: 'rect-test', event: [] },
+				x: 5,
+				y: 24,
+				width: 200,
+				levelIndex: 2,
+				spanRectsArray,
+				color: '#000',
+				isDarkMode: false,
+				metrics: METRICS,
+			});
+
+			expect(spanRectsArray[0]).toMatchObject({
+				x: 5,
+				y: 25,
+				width: 200,
+				height: 22,
+				level: 2,
+			});
+			expect(spanRectsArray[0].span.spanId).toBe('rect-test');
+		});
+	});
+
+	describe('drawSpanLabel (via drawSpanBar)', () => {
+		it('skips label when width < MIN_WIDTH_FOR_NAME', () => {
+			const ctx = createMockCtx();
+			const spanRectsArray: {
+				span: typeof MOCK_SPAN;
+				x: number;
+				y: number;
+				width: number;
+				height: number;
+				level: number;
+			}[] = [];
+
+			drawSpanBar({
+				ctx,
+				span: { ...MOCK_SPAN, name: 'long-span-name', event: [] },
+				x: 0,
+				y: 0,
+				width: MIN_WIDTH_FOR_NAME - 1,
+				levelIndex: 0,
+				spanRectsArray,
+				color: '#000',
+				isDarkMode: false,
+				metrics: METRICS,
+			});
+
+			expect(ctx.clip).not.toHaveBeenCalled();
+			expect(ctx.fillText).not.toHaveBeenCalled();
+		});
+
+		it('draws name only when width >= MIN_WIDTH_FOR_NAME but < MIN_WIDTH_FOR_NAME_AND_DURATION', () => {
+			const ctx = createMockCtx();
+			ctx.measureText = jest.fn(
+				(t: string) => ({ width: t.length * 6 } as TextMetrics),
+			);
+
+			drawSpanBar({
+				ctx,
+				span: { ...MOCK_SPAN, name: 'foo', event: [] },
+				x: 0,
+				y: 0,
+				width: 50,
+				levelIndex: 0,
+				spanRectsArray: [],
+				color: '#000',
+				isDarkMode: false,
+				metrics: METRICS,
+			});
+
+			expect(ctx.clip).toHaveBeenCalled();
+			expect(ctx.fillText).toHaveBeenCalled();
+			expect(ctx.textAlign).toBe('left');
+		});
+
+		it('draws name + duration when width >= MIN_WIDTH_FOR_NAME_AND_DURATION', () => {
+			const ctx = createMockCtx();
+			ctx.measureText = jest.fn(
+				(t: string) => ({ width: t.length * 6 } as TextMetrics),
+			);
+
+			drawSpanBar({
+				ctx,
+				span: { ...MOCK_SPAN, name: 'my-span', event: [] },
+				x: 0,
+				y: 0,
+				width: 100,
+				levelIndex: 0,
+				spanRectsArray: [],
+				color: '#000',
+				isDarkMode: false,
+				metrics: METRICS,
+			});
+
+			expect(ctx.fillText).toHaveBeenCalledTimes(2);
+			expect(ctx.fillText).toHaveBeenCalledWith(
+				'50ms',
+				expect.any(Number),
+				expect.any(Number),
+			);
+			expect(ctx.fillText).toHaveBeenCalledWith(
+				'my-span',
+				expect.any(Number),
+				expect.any(Number),
+			);
+		});
+	});
+
+	describe('truncateText (via drawSpanBar)', () => {
+		it('uses full text when it fits', () => {
+			const ctx = createMockCtx();
+			ctx.measureText = jest.fn(
+				(t: string) => ({ width: t.length * 4 } as TextMetrics),
+			);
+
+			drawSpanBar({
+				ctx,
+				span: { ...MOCK_SPAN, name: 'short', event: [] },
+				x: 0,
+				y: 0,
+				width: 100,
+				levelIndex: 0,
+				spanRectsArray: [],
+				color: '#000',
+				isDarkMode: false,
+				metrics: METRICS,
+			});
+
+			expect(ctx.fillText).toHaveBeenCalledWith(
+				'short',
+				expect.any(Number),
+				expect.any(Number),
+			);
+		});
+
+		it('truncates text when it exceeds available width', () => {
+			const ctx = createMockCtx();
+			ctx.measureText = jest.fn(
+				(t: string) =>
+					({
+						width: t.includes('...') ? 24 : t.length * 10,
+					} as TextMetrics),
+			);
+
+			drawSpanBar({
+				ctx,
+				span: { ...MOCK_SPAN, name: 'very-long-span-name', event: [] },
+				x: 0,
+				y: 0,
+				width: 50,
+				levelIndex: 0,
+				spanRectsArray: [],
+				color: '#000',
+				isDarkMode: false,
+				metrics: METRICS,
+			});
+
+			const fillTextCalls = (ctx.fillText as jest.Mock).mock.calls;
+			const nameArg = fillTextCalls.find((c) => c[0] !== '50ms')?.[0];
+			expect(nameArg).toBeDefined();
+			expect(nameArg).toMatch(/\.\.\.$/);
+		});
+	});
+
+	describe('drawEventDot', () => {
+		it('uses error styling when isError is true', () => {
+			const ctx = createMockCtx();
+
+			drawEventDot({
+				ctx,
+				x: 50,
+				y: 11,
+				isError: true,
+				isDarkMode: false,
+				eventDotSize: 6,
+			});
+
+			expect(ctx.save).toHaveBeenCalled();
+			expect(ctx.translate).toHaveBeenCalledWith(50, 11);
+			expect(ctx.rotate).toHaveBeenCalledWith(Math.PI / 4);
+			expect(ctx.fillStyle).toBe('rgb(220, 38, 38)');
+			expect(ctx.strokeStyle).toBe('rgb(153, 27, 27)');
+			expect(ctx.fillRect).toHaveBeenCalledWith(-3, -3, 6, 6);
+			expect(ctx.strokeRect).toHaveBeenCalledWith(-3, -3, 6, 6);
+			expect(ctx.restore).toHaveBeenCalled();
+		});
+
+		it('uses normal styling when isError is false', () => {
+			const ctx = createMockCtx();
+
+			drawEventDot({
+				ctx,
+				x: 0,
+				y: 0,
+				isError: false,
+				isDarkMode: false,
+				eventDotSize: 6,
+			});
+
+			expect(ctx.fillStyle).toBe('rgb(6, 182, 212)');
+			expect(ctx.strokeStyle).toBe('rgb(8, 145, 178)');
+		});
+
+		it('uses dark mode colors for error', () => {
+			const ctx = createMockCtx();
+
+			drawEventDot({
+				ctx,
+				x: 0,
+				y: 0,
+				isError: true,
+				isDarkMode: true,
+				eventDotSize: 6,
+			});
+
+			expect(ctx.fillStyle).toBe('rgb(239, 68, 68)');
+			expect(ctx.strokeStyle).toBe('rgb(185, 28, 28)');
+		});
+
+		it('uses dark mode colors for non-error', () => {
+			const ctx = createMockCtx();
+
+			drawEventDot({
+				ctx,
+				x: 0,
+				y: 0,
+				isError: false,
+				isDarkMode: true,
+				eventDotSize: 6,
+			});
+
+			expect(ctx.fillStyle).toBe('rgb(14, 165, 233)');
+			expect(ctx.strokeStyle).toBe('rgb(2, 132, 199)');
+		});
+
+		it('calls save, translate, rotate, restore', () => {
+			const ctx = createMockCtx();
+
+			drawEventDot({
+				ctx,
+				x: 10,
+				y: 20,
+				isError: false,
+				isDarkMode: false,
+				eventDotSize: 4,
+			});
+
+			expect(ctx.save).toHaveBeenCalled();
+			expect(ctx.translate).toHaveBeenCalledWith(10, 20);
+			expect(ctx.rotate).toHaveBeenCalledWith(Math.PI / 4);
+			expect(ctx.restore).toHaveBeenCalled();
+		});
+	});
+
+	describe('createStripePattern (via drawSpanBar)', () => {
+		it('uses pattern when createPattern returns non-null', () => {
+			const ctx = createMockCtx();
+			const mockPattern = {} as CanvasPattern;
+			(ctx.createPattern as jest.Mock).mockReturnValue(mockPattern);
+
+			drawSpanBar({
+				ctx,
+				span: { ...MOCK_SPAN, spanId: 'p', event: [] },
+				x: 0,
+				y: 0,
+				width: MIN_WIDTH_FOR_NAME - 1,
+				levelIndex: 0,
+				spanRectsArray: [],
+				color: '#000',
+				isDarkMode: false,
+				metrics: METRICS,
+				hoveredSpanId: 'p',
+			});
+
+			expect(ctx.createPattern).toHaveBeenCalled();
+			expect(ctx.fillStyle).toBe(mockPattern);
+			expect(ctx.fill).toHaveBeenCalled();
+		});
+
+		it('skips fill when createPattern returns null', () => {
+			const ctx = createMockCtx();
+			(ctx.createPattern as jest.Mock).mockReturnValue(null);
+
+			drawSpanBar({
+				ctx,
+				span: { ...MOCK_SPAN, spanId: 'p', event: [] },
+				x: 0,
+				y: 0,
+				width: MIN_WIDTH_FOR_NAME - 1,
+				levelIndex: 0,
+				spanRectsArray: [],
+				color: '#000',
+				isDarkMode: false,
+				metrics: METRICS,
+				selectedSpanId: 'p',
+			});
+
+			expect(ctx.fill).not.toHaveBeenCalled();
+			expect(ctx.stroke).toHaveBeenCalled();
+		});
+	});
+
+	describe('drawSpanBar with events', () => {
+		it('draws event dots for each span event', () => {
+			const ctx = createMockCtx();
+			const spanWithEvents = {
+				...MOCK_SPAN,
+				event: [
+					{
+						name: 'e1',
+						timeUnixNano: 1_010_000_000,
+						attributeMap: {},
+						isError: false,
+					},
+					{
+						name: 'e2',
+						timeUnixNano: 1_025_000_000,
+						attributeMap: {},
+						isError: true,
+					},
+				],
+			};
+
+			drawSpanBar({
+				ctx,
+				span: spanWithEvents,
+				x: 0,
+				y: 0,
+				width: 100,
+				levelIndex: 0,
+				spanRectsArray: [],
+				color: '#000',
+				isDarkMode: false,
+				metrics: METRICS,
+			});
+
+			expect(ctx.save).toHaveBeenCalledTimes(3);
+			expect(ctx.translate).toHaveBeenCalledTimes(2);
+			expect(ctx.fillRect).toHaveBeenCalledTimes(2);
+		});
+	});
+});

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/testUtils.ts

@@ -0,0 +1,54 @@
+import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+
+/** Minimal FlamegraphSpan for unit tests */
+export const MOCK_SPAN: FlamegraphSpan = {
+	timestamp: 1000,
+	durationNano: 50_000_000, // 50ms
+	spanId: 'span-1',
+	parentSpanId: '',
+	traceId: 'trace-1',
+	hasError: false,
+	serviceName: 'test-service',
+	name: 'test-span',
+	level: 0,
+	event: [],
+};
+
+/** Nested spans structure for findSpanById tests */
+export const MOCK_SPANS: FlamegraphSpan[][] = [
+	[
+		{
+			...MOCK_SPAN,
+			spanId: 'root',
+			parentSpanId: '',
+			level: 0,
+		},
+	],
+	[
+		{
+			...MOCK_SPAN,
+			spanId: 'child-a',
+			parentSpanId: 'root',
+			level: 1,
+		},
+		{
+			...MOCK_SPAN,
+			spanId: 'child-b',
+			parentSpanId: 'root',
+			level: 1,
+		},
+	],
+	[
+		{
+			...MOCK_SPAN,
+			spanId: 'grandchild',
+			parentSpanId: 'child-a',
+			level: 2,
+		},
+	],
+];
+
+export const MOCK_TRACE_METADATA = {
+	startTime: 0,
+	endTime: 1000,
+};

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/useFlamegraphDrag.test.ts

@@ -0,0 +1,196 @@
+import React from 'react';
+import { act, renderHook } from '@testing-library/react';
+
+import { useFlamegraphDrag } from '../hooks/useFlamegraphDrag';
+import { MOCK_TRACE_METADATA } from './testUtils';
+
+function createMockCanvas(): HTMLCanvasElement {
+	const canvas = document.createElement('canvas');
+	canvas.getBoundingClientRect = jest.fn(
+		(): DOMRect =>
+			({
+				left: 0,
+				top: 0,
+				width: 800,
+				height: 400,
+				x: 0,
+				y: 0,
+				bottom: 400,
+				right: 800,
+				toJSON: (): Record<string, unknown> => ({}),
+			} as DOMRect),
+	);
+	return canvas;
+}
+
+function createMockContainer(): HTMLDivElement {
+	const div = document.createElement('div');
+	Object.defineProperty(div, 'clientHeight', { value: 400 });
+	return div;
+}
+
+const defaultArgs = {
+	canvasRef: { current: createMockCanvas() },
+	containerRef: { current: createMockContainer() },
+	traceMetadata: MOCK_TRACE_METADATA,
+	viewStartRef: { current: 0 },
+	viewEndRef: { current: 1000 },
+	setViewStartTs: jest.fn(),
+	setViewEndTs: jest.fn(),
+	scrollTopRef: { current: 0 },
+	setScrollTop: jest.fn(),
+	totalHeight: 1000,
+};
+
+describe('useFlamegraphDrag', () => {
+	beforeEach(() => {
+		jest.clearAllMocks();
+		defaultArgs.viewStartRef.current = 0;
+		defaultArgs.viewEndRef.current = 1000;
+		defaultArgs.scrollTopRef.current = 0;
+	});
+
+	it('starts drag state on mousedown', () => {
+		const { result } = renderHook(() => useFlamegraphDrag(defaultArgs));
+
+		act(() => {
+			result.current.handleMouseDown(({
+				button: 0,
+				clientX: 100,
+				clientY: 50,
+				preventDefault: jest.fn(),
+			} as unknown) as React.MouseEvent);
+		});
+
+		expect(result.current.isDraggingRef.current).toBe(true);
+	});
+
+	it('ignores non-left button mousedown', () => {
+		const { result } = renderHook(() => useFlamegraphDrag(defaultArgs));
+
+		act(() => {
+			result.current.handleMouseDown(({
+				button: 1,
+				clientX: 100,
+				clientY: 50,
+				preventDefault: jest.fn(),
+			} as unknown) as React.MouseEvent);
+		});
+
+		expect(result.current.isDraggingRef.current).toBe(false);
+	});
+
+	it('updates pan/scroll on mousemove', () => {
+		const { result } = renderHook(() => useFlamegraphDrag(defaultArgs));
+
+		act(() => {
+			result.current.handleMouseDown(({
+				button: 0,
+				clientX: 100,
+				clientY: 50,
+				preventDefault: jest.fn(),
+			} as unknown) as React.MouseEvent);
+		});
+
+		act(() => {
+			result.current.handleMouseMove(({
+				clientX: 150,
+				clientY: 100,
+			} as unknown) as React.MouseEvent);
+		});
+
+		expect(defaultArgs.setViewStartTs).toHaveBeenCalled();
+		expect(defaultArgs.setViewEndTs).toHaveBeenCalled();
+		expect(defaultArgs.setScrollTop).toHaveBeenCalled();
+	});
+
+	it('does not set suppressClickRef when movement is below threshold', () => {
+		const { result } = renderHook(() => useFlamegraphDrag(defaultArgs));
+
+		act(() => {
+			result.current.handleMouseDown(({
+				button: 0,
+				clientX: 100,
+				clientY: 50,
+				preventDefault: jest.fn(),
+			} as unknown) as React.MouseEvent);
+		});
+
+		act(() => {
+			result.current.handleMouseMove(({
+				clientX: 102,
+				clientY: 51,
+			} as unknown) as React.MouseEvent);
+		});
+
+		act(() => {
+			result.current.handleMouseUp();
+		});
+
+		expect(result.current.suppressClickRef.current).toBe(false);
+	});
+
+	it('sets suppressClickRef when drag exceeds threshold', () => {
+		const { result } = renderHook(() => useFlamegraphDrag(defaultArgs));
+
+		act(() => {
+			result.current.handleMouseDown(({
+				button: 0,
+				clientX: 100,
+				clientY: 50,
+				preventDefault: jest.fn(),
+			} as unknown) as React.MouseEvent);
+		});
+
+		act(() => {
+			result.current.handleMouseMove(({
+				clientX: 150,
+				clientY: 100,
+			} as unknown) as React.MouseEvent);
+		});
+
+		act(() => {
+			result.current.handleMouseUp();
+		});
+
+		expect(result.current.suppressClickRef.current).toBe(true);
+	});
+
+	it('resets drag state on mouseup', () => {
+		const { result } = renderHook(() => useFlamegraphDrag(defaultArgs));
+
+		act(() => {
+			result.current.handleMouseDown(({
+				button: 0,
+				clientX: 100,
+				clientY: 50,
+				preventDefault: jest.fn(),
+			} as unknown) as React.MouseEvent);
+		});
+
+		act(() => {
+			result.current.handleMouseUp();
+		});
+
+		expect(result.current.isDraggingRef.current).toBe(false);
+	});
+
+	it('cancels drag on mouseleave', () => {
+		const { result } = renderHook(() => useFlamegraphDrag(defaultArgs));
+
+		act(() => {
+			result.current.handleMouseDown(({
+				button: 0,
+				clientX: 100,
+				clientY: 50,
+				preventDefault: jest.fn(),
+			} as unknown) as React.MouseEvent);
+		});
+
+		act(() => {
+			result.current.handleDragMouseLeave();
+		});
+
+		expect(result.current.isDraggingRef.current).toBe(false);
+	});
+});

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/useFlamegraphHover.test.ts

@@ -0,0 +1,174 @@
+import type React from 'react';
+import { act, renderHook } from '@testing-library/react';
+
+import { useFlamegraphHover } from '../hooks/useFlamegraphHover';
+import type { SpanRect } from '../types';
+import { MOCK_SPAN, MOCK_TRACE_METADATA } from './testUtils';
+
+function createMockCanvas(): HTMLCanvasElement {
+	const canvas = document.createElement('canvas');
+	canvas.width = 800;
+	canvas.height = 400;
+	canvas.getBoundingClientRect = jest.fn(
+		(): DOMRect =>
+			({
+				left: 0,
+				top: 0,
+				width: 800,
+				height: 400,
+				x: 0,
+				y: 0,
+				bottom: 400,
+				right: 800,
+				toJSON: (): Record<string, unknown> => ({}),
+			} as DOMRect),
+	);
+	return canvas;
+}
+
+const spanRect: SpanRect = {
+	span: { ...MOCK_SPAN, spanId: 'hover-span', name: 'test-span' },
+	x: 100,
+	y: 50,
+	width: 200,
+	height: 22,
+	level: 0,
+};
+
+const defaultArgs = {
+	canvasRef: { current: createMockCanvas() },
+	spanRectsRef: { current: [spanRect] },
+	traceMetadata: MOCK_TRACE_METADATA,
+	viewStartTs: MOCK_TRACE_METADATA.startTime,
+	viewEndTs: MOCK_TRACE_METADATA.endTime,
+	isDraggingRef: { current: false },
+	suppressClickRef: { current: false },
+	onSpanClick: jest.fn(),
+	isDarkMode: false,
+};
+
+describe('useFlamegraphHover', () => {
+	beforeEach(() => {
+		Object.defineProperty(window, 'devicePixelRatio', {
+			configurable: true,
+			value: 1,
+		});
+		jest.clearAllMocks();
+		defaultArgs.spanRectsRef.current = [spanRect];
+		defaultArgs.isDraggingRef.current = false;
+		defaultArgs.suppressClickRef.current = false;
+	});
+
+	it('sets hoveredSpanId and tooltipContent when hovering on span', () => {
+		const { result } = renderHook(() => useFlamegraphHover(defaultArgs));
+
+		act(() => {
+			result.current.handleHoverMouseMove({
+				clientX: 150,
+				clientY: 61,
+			} as React.MouseEvent);
+		});
+
+		expect(result.current.hoveredSpanId).toBe('hover-span');
+		expect(result.current.tooltipContent).not.toBeNull();
+		expect(result.current.tooltipContent?.spanName).toBe('test-span');
+		expect(result.current.tooltipContent?.clientX).toBe(150);
+		expect(result.current.tooltipContent?.clientY).toBe(61);
+	});
+
+	it('clears hover when moving to empty area', () => {
+		const { result } = renderHook(() => useFlamegraphHover(defaultArgs));
+
+		act(() => {
+			result.current.handleHoverMouseMove({
+				clientX: 150,
+				clientY: 61,
+			} as React.MouseEvent);
+		});
+
+		expect(result.current.hoveredSpanId).toBe('hover-span');
+
+		act(() => {
+			result.current.handleHoverMouseMove({
+				clientX: 10,
+				clientY: 10,
+			} as React.MouseEvent);
+		});
+
+		expect(result.current.hoveredSpanId).toBeNull();
+		expect(result.current.tooltipContent).toBeNull();
+	});
+
+	it('clears hover on mouse leave', () => {
+		const { result } = renderHook(() => useFlamegraphHover(defaultArgs));
+
+		act(() => {
+			result.current.handleHoverMouseMove({
+				clientX: 150,
+				clientY: 61,
+			} as React.MouseEvent);
+		});
+
+		act(() => {
+			result.current.handleHoverMouseLeave();
+		});
+
+		expect(result.current.hoveredSpanId).toBeNull();
+		expect(result.current.tooltipContent).toBeNull();
+	});
+
+	it('suppresses click when suppressClickRef is set', () => {
+		const { result } = renderHook(() => useFlamegraphHover(defaultArgs));
+		defaultArgs.suppressClickRef.current = true;
+
+		act(() => {
+			result.current.handleClick({
+				clientX: 150,
+				clientY: 61,
+			} as React.MouseEvent);
+		});
+
+		expect(defaultArgs.onSpanClick).not.toHaveBeenCalled();
+	});
+
+	it('calls onSpanClick when clicking on span', () => {
+		const { result } = renderHook(() => useFlamegraphHover(defaultArgs));
+
+		act(() => {
+			result.current.handleClick({
+				clientX: 150,
+				clientY: 61,
+			} as React.MouseEvent);
+		});
+
+		expect(defaultArgs.onSpanClick).toHaveBeenCalledWith('hover-span');
+	});
+
+	it('uses clientX/clientY for tooltip positioning', () => {
+		const { result } = renderHook(() => useFlamegraphHover(defaultArgs));
+
+		act(() => {
+			result.current.handleHoverMouseMove({
+				clientX: 200,
+				clientY: 60,
+			} as React.MouseEvent);
+		});
+
+		expect(result.current.tooltipContent?.clientX).toBe(200);
+		expect(result.current.tooltipContent?.clientY).toBe(60);
+	});
+
+	it('does not update hover during drag', () => {
+		const { result } = renderHook(() => useFlamegraphHover(defaultArgs));
+		defaultArgs.isDraggingRef.current = true;
+
+		act(() => {
+			result.current.handleHoverMouseMove({
+				clientX: 150,
+				clientY: 61,
+			} as React.MouseEvent);
+		});
+
+		expect(result.current.hoveredSpanId).toBeNull();
+	});
+});

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/useFlamegraphZoom.test.ts

@@ -0,0 +1,279 @@
+import { act, renderHook } from '@testing-library/react';
+
+import { DEFAULT_ROW_HEIGHT, MIN_VISIBLE_SPAN_MS } from '../constants';
+import { useFlamegraphZoom } from '../hooks/useFlamegraphZoom';
+import { MOCK_TRACE_METADATA } from './testUtils';
+
+function createMockCanvas(): HTMLCanvasElement {
+	const canvas = document.createElement('canvas');
+	canvas.width = 800;
+	canvas.height = 400;
+	canvas.getBoundingClientRect = jest.fn(
+		(): DOMRect =>
+			({
+				left: 0,
+				top: 0,
+				width: 800,
+				height: 400,
+				x: 0,
+				y: 0,
+				bottom: 400,
+				right: 800,
+				toJSON: (): Record<string, unknown> => ({}),
+			} as DOMRect),
+	);
+	return canvas;
+}
+
+describe('useFlamegraphZoom', () => {
+	const traceMetadata = { ...MOCK_TRACE_METADATA };
+
+	beforeEach(() => {
+		Object.defineProperty(window, 'devicePixelRatio', {
+			configurable: true,
+			value: 1,
+		});
+	});
+
+	it('handleResetZoom restores traceMetadata.startTime/endTime', () => {
+		const setViewStartTs = jest.fn();
+		const setViewEndTs = jest.fn();
+		const setRowHeight = jest.fn();
+		const viewStartRef = { current: 100 };
+		const viewEndRef = { current: 500 };
+		const rowHeightRef = { current: 30 };
+		const canvasRef = { current: createMockCanvas() };
+
+		const { result } = renderHook(() =>
+			useFlamegraphZoom({
+				canvasRef,
+				traceMetadata,
+				viewStartRef,
+				viewEndRef,
+				rowHeightRef,
+				setViewStartTs,
+				setViewEndTs,
+				setRowHeight,
+			}),
+		);
+
+		act(() => {
+			result.current.handleResetZoom();
+		});
+
+		expect(setViewStartTs).toHaveBeenCalledWith(traceMetadata.startTime);
+		expect(setViewEndTs).toHaveBeenCalledWith(traceMetadata.endTime);
+		expect(setRowHeight).toHaveBeenCalledWith(DEFAULT_ROW_HEIGHT);
+		expect(viewStartRef.current).toBe(traceMetadata.startTime);
+		expect(viewEndRef.current).toBe(traceMetadata.endTime);
+		expect(rowHeightRef.current).toBe(DEFAULT_ROW_HEIGHT);
+	});
+
+	it('wheel zoom in decreases visible time range', async () => {
+		const setViewStartTs = jest.fn();
+		const setViewEndTs = jest.fn();
+		const setRowHeight = jest.fn();
+		const viewStartRef = { current: traceMetadata.startTime };
+		const viewEndRef = { current: traceMetadata.endTime };
+		const rowHeightRef = { current: DEFAULT_ROW_HEIGHT };
+		const canvas = createMockCanvas();
+		const canvasRef = { current: canvas };
+
+		renderHook(() =>
+			useFlamegraphZoom({
+				canvasRef,
+				traceMetadata,
+				viewStartRef,
+				viewEndRef,
+				rowHeightRef,
+				setViewStartTs,
+				setViewEndTs,
+				setRowHeight,
+			}),
+		);
+
+		const initialSpan = viewEndRef.current - viewStartRef.current;
+
+		await act(async () => {
+			canvas.dispatchEvent(
+				new WheelEvent('wheel', {
+					clientX: 400,
+					deltaY: -100,
+					bubbles: true,
+				}),
+			);
+		});
+
+		await act(async () => {
+			await new Promise((r) => requestAnimationFrame(r));
+		});
+
+		expect(setViewStartTs).toHaveBeenCalled();
+		expect(setViewEndTs).toHaveBeenCalled();
+		const [newStart] = setViewStartTs.mock.calls[0] ?? [];
+		const [newEnd] = setViewEndTs.mock.calls[0] ?? [];
+		if (newStart != null && newEnd != null) {
+			const newSpan = newEnd - newStart;
+			expect(newSpan).toBeLessThan(initialSpan);
+		}
+	});
+
+	it('wheel zoom out increases visible time range', async () => {
+		const setViewStartTs = jest.fn();
+		const setViewEndTs = jest.fn();
+		const setRowHeight = jest.fn();
+		const halfSpan = (traceMetadata.endTime - traceMetadata.startTime) / 2;
+		const viewStartRef = { current: traceMetadata.startTime + halfSpan * 0.25 };
+		const viewEndRef = { current: traceMetadata.startTime + halfSpan * 0.75 };
+		const rowHeightRef = { current: DEFAULT_ROW_HEIGHT };
+		const canvas = createMockCanvas();
+		const canvasRef = { current: canvas };
+
+		renderHook(() =>
+			useFlamegraphZoom({
+				canvasRef,
+				traceMetadata,
+				viewStartRef,
+				viewEndRef,
+				rowHeightRef,
+				setViewStartTs,
+				setViewEndTs,
+				setRowHeight,
+			}),
+		);
+
+		const initialSpan = viewEndRef.current - viewStartRef.current;
+
+		await act(async () => {
+			canvas.dispatchEvent(
+				new WheelEvent('wheel', {
+					clientX: 400,
+					deltaY: 100,
+					bubbles: true,
+				}),
+			);
+		});
+
+		await act(async () => {
+			await new Promise((r) => requestAnimationFrame(r));
+		});
+
+		expect(setViewStartTs).toHaveBeenCalled();
+		expect(setViewEndTs).toHaveBeenCalled();
+		const [newStart] = setViewStartTs.mock.calls[0] ?? [];
+		const [newEnd] = setViewEndTs.mock.calls[0] ?? [];
+		if (newStart != null && newEnd != null) {
+			const newSpan = newEnd - newStart;
+			expect(newSpan).toBeGreaterThanOrEqual(initialSpan);
+		}
+	});
+
+	it('clamps zoom to MIN_VISIBLE_SPAN_MS', async () => {
+		const setViewStartTs = jest.fn();
+		const setViewEndTs = jest.fn();
+		const setRowHeight = jest.fn();
+		const viewStartRef = { current: traceMetadata.startTime };
+		const viewEndRef = { current: traceMetadata.startTime + 100 };
+		const rowHeightRef = { current: DEFAULT_ROW_HEIGHT };
+		const canvas = createMockCanvas();
+		const canvasRef = { current: canvas };
+
+		renderHook(() =>
+			useFlamegraphZoom({
+				canvasRef,
+				traceMetadata,
+				viewStartRef,
+				viewEndRef,
+				rowHeightRef,
+				setViewStartTs,
+				setViewEndTs,
+				setRowHeight,
+			}),
+		);
+
+		await act(async () => {
+			canvas.dispatchEvent(
+				new WheelEvent('wheel', {
+					clientX: 400,
+					deltaY: 10000,
+					bubbles: true,
+				}),
+			);
+		});
+
+		await act(async () => {
+			await new Promise((r) => requestAnimationFrame(r));
+		});
+
+		const [newStart] = setViewStartTs.mock.calls[0] ?? [];
+		const [newEnd] = setViewEndTs.mock.calls[0] ?? [];
+		if (newStart != null && newEnd != null) {
+			const newSpan = newEnd - newStart;
+			expect(newSpan).toBeGreaterThanOrEqual(MIN_VISIBLE_SPAN_MS);
+		}
+	});
+
+	it('clamps viewStart/viewEnd to trace bounds', async () => {
+		const setViewStartTs = jest.fn();
+		const setViewEndTs = jest.fn();
+		const setRowHeight = jest.fn();
+		const viewStartRef = { current: traceMetadata.startTime };
+		const viewEndRef = { current: traceMetadata.endTime };
+		const rowHeightRef = { current: DEFAULT_ROW_HEIGHT };
+		const canvas = createMockCanvas();
+		const canvasRef = { current: canvas };
+
+		renderHook(() =>
+			useFlamegraphZoom({
+				canvasRef,
+				traceMetadata,
+				viewStartRef,
+				viewEndRef,
+				rowHeightRef,
+				setViewStartTs,
+				setViewEndTs,
+				setRowHeight,
+			}),
+		);
+
+		await act(async () => {
+			canvas.dispatchEvent(
+				new WheelEvent('wheel', {
+					clientX: 400,
+					deltaY: -5000,
+					bubbles: true,
+				}),
+			);
+		});
+
+		await act(async () => {
+			await new Promise((r) => requestAnimationFrame(r));
+		});
+
+		const [newStart] = setViewStartTs.mock.calls[0] ?? [];
+		const [newEnd] = setViewEndTs.mock.calls[0] ?? [];
+		if (newStart != null && newEnd != null) {
+			expect(newStart).toBeGreaterThanOrEqual(traceMetadata.startTime);
+			expect(newEnd).toBeLessThanOrEqual(traceMetadata.endTime);
+		}
+	});
+
+	it('returns isOverFlamegraphRef', () => {
+		const canvasRef = { current: createMockCanvas() };
+		const { result } = renderHook(() =>
+			useFlamegraphZoom({
+				canvasRef,
+				traceMetadata,
+				viewStartRef: { current: 0 },
+				viewEndRef: { current: 1000 },
+				rowHeightRef: { current: 24 },
+				setViewStartTs: jest.fn(),
+				setViewEndTs: jest.fn(),
+				setRowHeight: jest.fn(),
+			}),
+		);
+
+		expect(result.current.isOverFlamegraphRef).toBeDefined();
+		expect(result.current.isOverFlamegraphRef.current).toBe(false);
+	});
+});

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/useScrollToSpan.test.tsx

@@ -0,0 +1,212 @@
+import type { Dispatch, SetStateAction } from 'react';
+import { useRef } from 'react';
+import { act, render, waitFor } from '@testing-library/react';
+
+import { useScrollToSpan } from '../hooks/useScrollToSpan';
+import { MOCK_SPANS, MOCK_TRACE_METADATA } from './testUtils';
+
+function TestWrapper({
+	firstSpanAtFetchLevel,
+	spans,
+	traceMetadata,
+	setViewStartTs,
+	setViewEndTs,
+	setScrollTop,
+}: {
+	firstSpanAtFetchLevel: string;
+	spans: typeof MOCK_SPANS;
+	traceMetadata: typeof MOCK_TRACE_METADATA;
+	setViewStartTs: Dispatch<SetStateAction<number>>;
+	setViewEndTs: Dispatch<SetStateAction<number>>;
+	setScrollTop: Dispatch<SetStateAction<number>>;
+}): JSX.Element {
+	const containerRef = useRef<HTMLDivElement>(null);
+	const viewStartRef = useRef(traceMetadata.startTime);
+	const viewEndRef = useRef(traceMetadata.endTime);
+	const scrollTopRef = useRef(0);
+
+	useScrollToSpan({
+		firstSpanAtFetchLevel,
+		spans,
+		traceMetadata,
+		containerRef,
+		viewStartRef,
+		viewEndRef,
+		scrollTopRef,
+		rowHeight: 24,
+		setViewStartTs,
+		setViewEndTs,
+		setScrollTop,
+	});
+
+	return <div ref={containerRef} data-testid="container" />;
+}
+
+describe('useScrollToSpan', () => {
+	beforeEach(() => {
+		Object.defineProperty(HTMLElement.prototype, 'clientHeight', {
+			configurable: true,
+			value: 400,
+		});
+	});
+
+	it('does not update when firstSpanAtFetchLevel is empty', async () => {
+		const setViewStartTs = jest.fn();
+		const setViewEndTs = jest.fn();
+		const setScrollTop = jest.fn();
+
+		render(
+			<TestWrapper
+				firstSpanAtFetchLevel=""
+				spans={MOCK_SPANS}
+				traceMetadata={MOCK_TRACE_METADATA}
+				setViewStartTs={setViewStartTs}
+				setViewEndTs={setViewEndTs}
+				setScrollTop={setScrollTop}
+			/>,
+		);
+
+		await waitFor(() => {
+			expect(setViewStartTs).not.toHaveBeenCalled();
+			expect(setViewEndTs).not.toHaveBeenCalled();
+			expect(setScrollTop).not.toHaveBeenCalled();
+		});
+	});
+
+	it('does not update when spans are empty', async () => {
+		const setViewStartTs = jest.fn();
+		const setViewEndTs = jest.fn();
+		const setScrollTop = jest.fn();
+
+		render(
+			<TestWrapper
+				firstSpanAtFetchLevel="root"
+				spans={[]}
+				traceMetadata={MOCK_TRACE_METADATA}
+				setViewStartTs={setViewStartTs}
+				setViewEndTs={setViewEndTs}
+				setScrollTop={setScrollTop}
+			/>,
+		);
+
+		await waitFor(() => {
+			expect(setViewStartTs).not.toHaveBeenCalled();
+			expect(setViewEndTs).not.toHaveBeenCalled();
+			expect(setScrollTop).not.toHaveBeenCalled();
+		});
+	});
+
+	it('does not update when target span not found', async () => {
+		const setViewStartTs = jest.fn();
+		const setViewEndTs = jest.fn();
+		const setScrollTop = jest.fn();
+
+		render(
+			<TestWrapper
+				firstSpanAtFetchLevel="nonexistent"
+				spans={MOCK_SPANS}
+				traceMetadata={MOCK_TRACE_METADATA}
+				setViewStartTs={setViewStartTs}
+				setViewEndTs={setViewEndTs}
+				setScrollTop={setScrollTop}
+			/>,
+		);
+
+		await waitFor(() => {
+			expect(setViewStartTs).not.toHaveBeenCalled();
+			expect(setViewEndTs).not.toHaveBeenCalled();
+			expect(setScrollTop).not.toHaveBeenCalled();
+		});
+	});
+
+	it('calls setters when target span found', async () => {
+		const setViewStartTs = jest.fn();
+		const setViewEndTs = jest.fn();
+		const setScrollTop = jest.fn();
+
+		const { getByTestId } = render(
+			<TestWrapper
+				firstSpanAtFetchLevel="grandchild"
+				spans={MOCK_SPANS}
+				traceMetadata={MOCK_TRACE_METADATA}
+				setViewStartTs={setViewStartTs}
+				setViewEndTs={setViewEndTs}
+				setScrollTop={setScrollTop}
+			/>,
+		);
+
+		expect(getByTestId('container')).toBeInTheDocument();
+
+		await waitFor(() => {
+			expect(setViewStartTs).toHaveBeenCalled();
+			expect(setViewEndTs).toHaveBeenCalled();
+			expect(setScrollTop).toHaveBeenCalled();
+		});
+
+		const [viewStart] = setViewStartTs.mock.calls[0];
+		const [viewEnd] = setViewEndTs.mock.calls[0];
+		const [scrollTop] = setScrollTop.mock.calls[0];
+
+		expect(viewEnd - viewStart).toBeGreaterThan(0);
+		expect(viewStart).toBeGreaterThanOrEqual(MOCK_TRACE_METADATA.startTime);
+		expect(viewEnd).toBeLessThanOrEqual(MOCK_TRACE_METADATA.endTime);
+		expect(scrollTop).toBeGreaterThanOrEqual(0);
+	});
+
+	it('centers span vertically (scrollTop centers span row)', async () => {
+		const setScrollTop = jest.fn();
+
+		await act(async () => {
+			render(
+				<TestWrapper
+					firstSpanAtFetchLevel="grandchild"
+					spans={MOCK_SPANS}
+					traceMetadata={MOCK_TRACE_METADATA}
+					setViewStartTs={jest.fn()}
+					setViewEndTs={jest.fn()}
+					setScrollTop={setScrollTop}
+				/>,
+			);
+		});
+
+		await waitFor(() => expect(setScrollTop).toHaveBeenCalled());
+
+		const [scrollTop] = setScrollTop.mock.calls[0];
+		const levelIndex = 2;
+		const rowHeight = 24;
+		const viewportHeight = 400;
+		const expectedCenter =
+			levelIndex * rowHeight - viewportHeight / 2 + rowHeight / 2;
+		expect(scrollTop).toBeCloseTo(Math.max(0, expectedCenter), -1);
+	});
+
+	it('zooms horizontally to span with 2x duration padding', async () => {
+		const setViewStartTs = jest.fn();
+		const setViewEndTs = jest.fn();
+
+		await act(async () => {
+			render(
+				<TestWrapper
+					firstSpanAtFetchLevel="root"
+					spans={MOCK_SPANS}
+					traceMetadata={MOCK_TRACE_METADATA}
+					setViewStartTs={setViewStartTs}
+					setViewEndTs={setViewEndTs}
+					setScrollTop={jest.fn()}
+				/>,
+			);
+		});
+
+		await waitFor(() => {
+			expect(setViewStartTs).toHaveBeenCalled();
+			expect(setViewEndTs).toHaveBeenCalled();
+		});
+
+		const [viewStart] = setViewStartTs.mock.calls[0];
+		const [viewEnd] = setViewEndTs.mock.calls[0];
+		const visibleWindow = viewEnd - viewStart;
+		const rootSpan = MOCK_SPANS[0][0];
+		const spanDurationMs = rootSpan.durationNano / 1e6;
+		expect(visibleWindow).toBeGreaterThanOrEqual(Math.max(spanDurationMs * 2, 5));
+	});
+});

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/utils.math.test.ts

@@ -0,0 +1,135 @@
+import {
+	clamp,
+	findSpanById,
+	formatDuration,
+	getFlamegraphRowMetrics,
+} from '../utils';
+import { MOCK_SPANS } from './testUtils';
+
+jest.mock('container/TraceDetail/utils', () => ({
+	convertTimeToRelevantUnit: (
+		valueMs: number,
+	): { time: number; timeUnitName: string } => {
+		if (valueMs === 0) {
+			return { time: 0, timeUnitName: 'ms' };
+		}
+		if (valueMs < 1) {
+			return { time: valueMs, timeUnitName: 'ms' };
+		}
+		if (valueMs < 1000) {
+			return { time: valueMs, timeUnitName: 'ms' };
+		}
+		if (valueMs < 60_000) {
+			return { time: valueMs / 1000, timeUnitName: 's' };
+		}
+		if (valueMs < 3_600_000) {
+			return { time: valueMs / 60_000, timeUnitName: 'm' };
+		}
+		return { time: valueMs / 3_600_000, timeUnitName: 'hr' };
+	},
+}));
+
+describe('Pure Math and Data Utils', () => {
+	describe('clamp', () => {
+		it('returns value when within range', () => {
+			expect(clamp(5, 0, 10)).toBe(5);
+			expect(clamp(-3, -5, 5)).toBe(-3);
+		});
+
+		it('returns min when value is below min', () => {
+			expect(clamp(-1, 0, 10)).toBe(0);
+			expect(clamp(2, 5, 10)).toBe(5);
+		});
+
+		it('returns max when value is above max', () => {
+			expect(clamp(11, 0, 10)).toBe(10);
+			expect(clamp(100, 0, 50)).toBe(50);
+		});
+
+		it('handles min === max', () => {
+			expect(clamp(5, 7, 7)).toBe(7);
+			expect(clamp(7, 7, 7)).toBe(7);
+		});
+	});
+
+	describe('findSpanById', () => {
+		it('finds span in first level', () => {
+			const result = findSpanById(MOCK_SPANS, 'root');
+			expect(result).not.toBeNull();
+			expect(result?.span.spanId).toBe('root');
+			expect(result?.levelIndex).toBe(0);
+		});
+
+		it('finds span in nested level', () => {
+			const result = findSpanById(MOCK_SPANS, 'grandchild');
+			expect(result).not.toBeNull();
+			expect(result?.span.spanId).toBe('grandchild');
+			expect(result?.levelIndex).toBe(2);
+		});
+
+		it('returns null when span not found', () => {
+			expect(findSpanById(MOCK_SPANS, 'nonexistent')).toBeNull();
+		});
+
+		it('handles empty spans', () => {
+			expect(findSpanById([], 'root')).toBeNull();
+			expect(findSpanById([[], []], 'root')).toBeNull();
+		});
+	});
+
+	describe('getFlamegraphRowMetrics', () => {
+		it('computes normal row height metrics (24px)', () => {
+			const m = getFlamegraphRowMetrics(24);
+			expect(m.ROW_HEIGHT).toBe(24);
+			expect(m.SPAN_BAR_HEIGHT).toBe(22);
+			expect(m.SPAN_BAR_Y_OFFSET).toBe(1);
+			expect(m.EVENT_DOT_SIZE).toBe(6);
+		});
+
+		it('clamps span bar height to max for large row heights', () => {
+			const m = getFlamegraphRowMetrics(100);
+			expect(m.SPAN_BAR_HEIGHT).toBe(22);
+			expect(m.SPAN_BAR_Y_OFFSET).toBe(39);
+		});
+
+		it('clamps span bar height to min for small row heights', () => {
+			const m = getFlamegraphRowMetrics(6);
+			expect(m.SPAN_BAR_HEIGHT).toBe(8);
+			// spanBarYOffset = floor((6-8)/2) = -1 when bar exceeds row height
+			expect(m.SPAN_BAR_Y_OFFSET).toBe(-1);
+		});
+
+		it('clamps event dot size within min/max', () => {
+			const mSmall = getFlamegraphRowMetrics(6);
+			expect(mSmall.EVENT_DOT_SIZE).toBe(4);
+
+			const mLarge = getFlamegraphRowMetrics(24);
+			expect(mLarge.EVENT_DOT_SIZE).toBe(6);
+		});
+	});
+
+	describe('formatDuration', () => {
+		it('formats nanos as ms', () => {
+			// 1e6 nanos = 1ms
+			expect(formatDuration(1_000_000)).toBe('1ms');
+		});
+
+		it('formats larger durations as s/m/hr', () => {
+			// 2e9 nanos = 2000ms = 2s
+			expect(formatDuration(2_000_000_000)).toBe('2s');
+		});
+
+		it('formats zero duration', () => {
+			expect(formatDuration(0)).toBe('0ms');
+		});
+
+		it('formats very small values', () => {
+			// 1000 nanos = 0.001ms → mock returns { time: 0.001, timeUnitName: 'ms' }
+			expect(formatDuration(1000)).toBe('0ms');
+		});
+
+		it('formats decimal seconds correctly', () => {
+			expect(formatDuration(1_500_000_000)).toBe('1.5s');
+		});
+	});
+});

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/__tests__/utils.presentation.test.ts

@@ -0,0 +1,67 @@
+import { getSpanColor } from '../utils';
+import { MOCK_SPAN } from './testUtils';
+
+const mockGenerateColor = jest.fn();
+
+jest.mock('lib/uPlotLib/utils/generateColor', () => ({
+	generateColor: (key: string, colorMap: Record<string, string>): string =>
+		mockGenerateColor(key, colorMap),
+}));
+
+describe('Presentation / Styling Utils', () => {
+	beforeEach(() => {
+		jest.clearAllMocks();
+		mockGenerateColor.mockReturnValue('#2F80ED');
+	});
+
+	describe('getSpanColor', () => {
+		it('uses generated service color for normal span', () => {
+			mockGenerateColor.mockReturnValue('#1890ff');
+
+			const color = getSpanColor({
+				span: { ...MOCK_SPAN, hasError: false },
+				isDarkMode: false,
+			});
+
+			expect(mockGenerateColor).toHaveBeenCalledWith(
+				MOCK_SPAN.serviceName,
+				expect.any(Object),
+			);
+			expect(color).toBe('#1890ff');
+		});
+
+		it('overrides with error color in light mode when span has error', () => {
+			mockGenerateColor.mockReturnValue('#1890ff');
+
+			const color = getSpanColor({
+				span: { ...MOCK_SPAN, hasError: true },
+				isDarkMode: false,
+			});
+
+			expect(color).toBe('rgb(220, 38, 38)');
+		});
+
+		it('overrides with error color in dark mode when span has error', () => {
+			mockGenerateColor.mockReturnValue('#1890ff');
+
+			const color = getSpanColor({
+				span: { ...MOCK_SPAN, hasError: true },
+				isDarkMode: true,
+			});
+
+			expect(color).toBe('rgb(239, 68, 68)');
+		});
+
+		it('passes serviceName to generateColor', () => {
+			getSpanColor({
+				span: { ...MOCK_SPAN, serviceName: 'my-service' },
+				isDarkMode: false,
+			});
+
+			expect(mockGenerateColor).toHaveBeenCalledWith(
+				'my-service',
+				expect.any(Object),
+			);
+		});
+	});
+});

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/computeVisualLayout.ts

@@ -0,0 +1,370 @@
+/* eslint-disable sonarjs/cognitive-complexity */
+import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+
+export interface ConnectorLine {
+	parentRow: number;
+	childRow: number;
+	timestampMs: number;
+	serviceName: string;
+}
+
+export interface VisualLayout {
+	visualRows: FlamegraphSpan[][];
+	spanToVisualRow: Record<string, number>;
+	connectors: ConnectorLine[];
+	totalVisualRows: number;
+}
+
+/**
+ * Computes an overlap-safe visual layout for flamegraph spans using DFS ordering.
+ *
+ * Builds a parent→children tree from parentSpanId, then traverses in DFS pre-order.
+ * Each span is placed at parentRow+1 if free, otherwise scans upward row-by-row
+ * until finding a non-overlapping row. This keeps children visually close to their
+ * parents and avoids the BFS problem where distant siblings push children far down.
+ */
+export function computeVisualLayout(spans: FlamegraphSpan[][]): VisualLayout {
+	const spanToVisualRow = new Map<string, number>();
+	const visualRowsMap = new Map<number, FlamegraphSpan[]>();
+	let maxRow = -1;
+
+	// Per-row interval list for overlap detection
+	// Each entry: [startTime, endTime]
+	const rowIntervals = new Map<number, Array<[number, number]>>();
+
+	// function hasOverlap(row: number, startTime: number, endTime: number): boolean {
+	// 	const intervals = rowIntervals.get(row);
+	// 	if (!intervals) {
+	// 		return false;
+	// 	}
+	// 	for (const [s, e] of intervals) {
+	// 		if (startTime < e && endTime > s) {
+	// 			return true;
+	// 		}
+	// 	}
+	// 	return false;
+	// }
+
+	function addToRow(row: number, span: FlamegraphSpan): void {
+		spanToVisualRow.set(span.spanId, row);
+		let arr = visualRowsMap.get(row);
+		if (!arr) {
+			arr = [];
+			visualRowsMap.set(row, arr);
+		}
+		arr.push(span);
+
+		const startTime = span.timestamp;
+		const endTime = span.timestamp + span.durationNano / 1e6;
+		let intervals = rowIntervals.get(row);
+		if (!intervals) {
+			intervals = [];
+			rowIntervals.set(row, intervals);
+		}
+		intervals.push([startTime, endTime]);
+
+		if (row > maxRow) {
+			maxRow = row;
+		}
+	}
+
+	// Flatten all spans and build lookup + children map
+	const spanMap = new Map<string, FlamegraphSpan>();
+	const childrenMap = new Map<string, FlamegraphSpan[]>();
+	const allSpans: FlamegraphSpan[] = [];
+
+	for (const level of spans) {
+		for (const span of level) {
+			allSpans.push(span);
+			spanMap.set(span.spanId, span);
+		}
+	}
+
+	// Extract parentSpanId — the field may be missing at runtime when the API
+	// returns `references` instead.  Fall back to the first CHILD_OF reference.
+	function getParentId(span: FlamegraphSpan): string {
+		if (span.parentSpanId) {
+			return span.parentSpanId;
+		}
+		// eslint-disable-next-line @typescript-eslint/no-explicit-any
+		const refs = (span as any).references as
+			| Array<{ spanId?: string; refType?: string }>
+			| undefined;
+		if (refs) {
+			for (const ref of refs) {
+				if (ref.refType === 'CHILD_OF' && ref.spanId) {
+					return ref.spanId;
+				}
+			}
+		}
+		return '';
+	}
+
+	// Build children map and identify roots
+	const roots: FlamegraphSpan[] = [];
+
+	for (const span of allSpans) {
+		const parentId = getParentId(span);
+		if (!parentId || !spanMap.has(parentId)) {
+			roots.push(span);
+		} else {
+			let children = childrenMap.get(parentId);
+			if (!children) {
+				children = [];
+				childrenMap.set(parentId, children);
+			}
+			children.push(span);
+		}
+	}
+
+	// Sort children by timestamp for deterministic ordering
+	for (const [, children] of childrenMap) {
+		children.sort((a, b) => b.timestamp - a.timestamp);
+	}
+
+	// --- Subtree-unit placement ---
+	// Compute each subtree's layout in isolation, then place as a unit
+	// to guarantee parent-child adjacency within subtrees.
+
+	interface ShapeEntry {
+		span: FlamegraphSpan;
+		relativeRow: number;
+	}
+
+	function hasOverlapIn(
+		intervals: Map<number, Array<[number, number]>>,
+		row: number,
+		startTime: number,
+		endTime: number,
+	): boolean {
+		const rowIntervals = intervals.get(row);
+		if (!rowIntervals) {
+			return false;
+		}
+		for (const [s, e] of rowIntervals) {
+			if (startTime < e && endTime > s) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	function addIntervalTo(
+		intervals: Map<number, Array<[number, number]>>,
+		row: number,
+		startTime: number,
+		endTime: number,
+	): void {
+		let arr = intervals.get(row);
+		if (!arr) {
+			arr = [];
+			intervals.set(row, arr);
+		}
+		arr.push([startTime, endTime]);
+	}
+
+	function hasConnectorConflict(
+		intervals: Map<number, Array<[number, number]>>,
+		row: number,
+		point: number,
+	): boolean {
+		const rowIntervals = intervals.get(row);
+		if (!rowIntervals) {
+			return false;
+		}
+		for (const [s, e] of rowIntervals) {
+			if (point >= s && point < e) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	function hasPointInSpan(
+		connectorPoints: Map<number, number[]>,
+		row: number,
+		startTime: number,
+		endTime: number,
+	): boolean {
+		const points = connectorPoints.get(row);
+		if (!points) {
+			return false;
+		}
+		for (const p of points) {
+			if (p >= startTime && p < endTime) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	function addConnectorPoint(
+		connectorPoints: Map<number, number[]>,
+		row: number,
+		point: number,
+	): void {
+		let arr = connectorPoints.get(row);
+		if (!arr) {
+			arr = [];
+			connectorPoints.set(row, arr);
+		}
+		arr.push(point);
+	}
+
+	function computeSubtreeShape(rootSpan: FlamegraphSpan): ShapeEntry[] {
+		const localIntervals = new Map<number, Array<[number, number]>>();
+		const localConnectorPoints = new Map<number, number[]>();
+		const shape: ShapeEntry[] = [];
+
+		// Place root span at relative row 0
+		const rootStart = rootSpan.timestamp;
+		const rootEnd = rootSpan.timestamp + rootSpan.durationNano / 1e6;
+		shape.push({ span: rootSpan, relativeRow: 0 });
+		addIntervalTo(localIntervals, 0, rootStart, rootEnd);
+
+		const children = childrenMap.get(rootSpan.spanId);
+		if (children) {
+			for (const child of children) {
+				const childShape = computeSubtreeShape(child);
+				const connectorX = child.timestamp;
+				const offset = findPlacement(
+					childShape,
+					1,
+					localIntervals,
+					localConnectorPoints,
+					connectorX,
+				);
+
+				// Record connector points for intermediate rows (1 to offset-1)
+				for (let r = 1; r < offset; r++) {
+					addConnectorPoint(localConnectorPoints, r, connectorX);
+				}
+
+				// Place child shape into local state at offset
+				for (const entry of childShape) {
+					const actualRow = entry.relativeRow + offset;
+					shape.push({ span: entry.span, relativeRow: actualRow });
+					const s = entry.span.timestamp;
+					const e = entry.span.timestamp + entry.span.durationNano / 1e6;
+					addIntervalTo(localIntervals, actualRow, s, e);
+				}
+			}
+		}
+
+		return shape;
+	}
+
+	function findPlacement(
+		shape: ShapeEntry[],
+		minOffset: number,
+		intervals: Map<number, Array<[number, number]>>,
+		connectorPoints?: Map<number, number[]>,
+		connectorX?: number,
+	): number {
+		// Track the first offset that passes Checks 1 & 2 as a fallback.
+		// Check 3 (connector vs span) is monotonically failing: once it fails
+		// at offset K, all offsets > K also fail (more intermediate rows).
+		// If we can't satisfy Check 3, fall back to the best offset without it.
+		let fallbackOffset = -1;
+
+		for (let offset = minOffset; ; offset++) {
+			let passesSpanChecks = true;
+
+			// Check 1: span vs span (existing)
+			for (const entry of shape) {
+				const targetRow = entry.relativeRow + offset;
+				const s = entry.span.timestamp;
+				const e = entry.span.timestamp + entry.span.durationNano / 1e6;
+				if (hasOverlapIn(intervals, targetRow, s, e)) {
+					passesSpanChecks = false;
+					break;
+				}
+			}
+
+			// Check 2: span vs existing connector points
+			if (passesSpanChecks && connectorPoints) {
+				for (const entry of shape) {
+					const targetRow = entry.relativeRow + offset;
+					const s = entry.span.timestamp;
+					const e = entry.span.timestamp + entry.span.durationNano / 1e6;
+					if (hasPointInSpan(connectorPoints, targetRow, s, e)) {
+						passesSpanChecks = false;
+						break;
+					}
+				}
+			}
+
+			if (!passesSpanChecks) {
+				continue;
+			}
+
+			// This offset passes Checks 1 & 2 — record as fallback
+			if (fallbackOffset === -1) {
+				fallbackOffset = offset;
+			}
+
+			// Check 3: new connector vs existing spans
+			if (connectorX !== undefined) {
+				let connectorClear = true;
+				for (let r = 1; r < offset; r++) {
+					if (hasConnectorConflict(intervals, r, connectorX)) {
+						connectorClear = false;
+						break;
+					}
+				}
+				if (!connectorClear) {
+					// Check 3 will fail for all larger offsets too.
+					// Fall back to the first offset that passed Checks 1 & 2.
+					return fallbackOffset;
+				}
+			}
+
+			return offset;
+		}
+	}
+
+	// Process roots sorted by timestamp
+	roots.sort((a, b) => a.timestamp - b.timestamp);
+	for (const root of roots) {
+		const shape = computeSubtreeShape(root);
+		const offset = findPlacement(shape, 0, rowIntervals);
+		for (const entry of shape) {
+			addToRow(entry.relativeRow + offset, entry.span);
+		}
+	}
+
+	// Build the visualRows array
+	const totalVisualRows = maxRow + 1;
+	const visualRows: FlamegraphSpan[][] = [];
+	for (let i = 0; i < totalVisualRows; i++) {
+		visualRows.push(visualRowsMap.get(i) || []);
+	}
+
+	// Build connector lines for parent-child pairs with row gap > 1
+	const connectors: ConnectorLine[] = [];
+	for (const [parentId, children] of childrenMap) {
+		const parentRow = spanToVisualRow.get(parentId);
+		if (parentRow === undefined) {
+			continue;
+		}
+		for (const child of children) {
+			const childRow = spanToVisualRow.get(child.spanId);
+			if (childRow === undefined || childRow - parentRow <= 1) {
+				continue;
+			}
+			connectors.push({
+				parentRow,
+				childRow,
+				timestampMs: child.timestamp,
+				serviceName: child.serviceName,
+			});
+		}
+	}
+
+	return {
+		visualRows,
+		spanToVisualRow: Object.fromEntries(spanToVisualRow),
+		connectors,
+		totalVisualRows,
+	};
+}

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/constants.ts

@@ -0,0 +1,36 @@
+export const ROW_HEIGHT = 24;
+export const SPAN_BAR_HEIGHT = 22;
+export const SPAN_BAR_Y_OFFSET = Math.floor((ROW_HEIGHT - SPAN_BAR_HEIGHT) / 2);
+export const EVENT_DOT_SIZE = 6;
+
+// Span bar sizing relative to row height (used by getFlamegraphRowMetrics)
+export const SPAN_BAR_HEIGHT_RATIO = SPAN_BAR_HEIGHT / ROW_HEIGHT;
+export const MIN_SPAN_BAR_HEIGHT = 8;
+export const MAX_SPAN_BAR_HEIGHT = SPAN_BAR_HEIGHT;
+
+// Event dot sizing relative to span bar height
+export const EVENT_DOT_SIZE_RATIO = EVENT_DOT_SIZE / SPAN_BAR_HEIGHT;
+export const MIN_EVENT_DOT_SIZE = 4;
+export const MAX_EVENT_DOT_SIZE = EVENT_DOT_SIZE;
+
+export const LABEL_FONT = '11px Inter, sans-serif';
+export const LABEL_PADDING_X = 8;
+export const MIN_WIDTH_FOR_NAME = 30;
+export const MIN_WIDTH_FOR_NAME_AND_DURATION = 80;
+
+// Dynamic row height (vertical zoom) -- disabled for now (MIN === MAX)
+export const MIN_ROW_HEIGHT = 24;
+export const MAX_ROW_HEIGHT = 24;
+export const DEFAULT_ROW_HEIGHT = MIN_ROW_HEIGHT;
+
+// Zoom intensity -- how fast zoom reacts to wheel/pinch delta
+export const PINCH_ZOOM_INTENSITY_H = 0.01;
+export const SCROLL_ZOOM_INTENSITY_H = 0.0015;
+export const PINCH_ZOOM_INTENSITY_V = 0.008;
+export const SCROLL_ZOOM_INTENSITY_V = 0.001;
+
+// Minimum visible time span in ms (prevents zooming to sub-pixel)
+export const MIN_VISIBLE_SPAN_MS = 5;
+
+// Selected span style (dashed border)
+export const DASHED_BORDER_LINE_DASH = [4, 2];

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/hooks/useCanvasSetup.ts

@@ -0,0 +1,55 @@
+import { RefObject, useCallback, useEffect } from 'react';
+
+export function useCanvasSetup(
+	canvasRef: RefObject<HTMLCanvasElement>,
+	containerRef: RefObject<HTMLDivElement>,
+	onDraw: () => void,
+): void {
+	const updateCanvasSize = useCallback(() => {
+		const canvas = canvasRef.current;
+		const container = containerRef.current;
+		if (!canvas || !container) {
+			return;
+		}
+
+		const dpr = window.devicePixelRatio || 1;
+		const rect = container.getBoundingClientRect();
+		const viewportHeight = container.clientHeight;
+
+		canvas.style.width = `${rect.width}px`;
+		canvas.style.height = `${viewportHeight}px`;
+
+		const newWidth = Math.floor(rect.width * dpr);
+		const newHeight = Math.floor(viewportHeight * dpr);
+
+		if (canvas.width !== newWidth || canvas.height !== newHeight) {
+			canvas.width = newWidth;
+			canvas.height = newHeight;
+			onDraw();
+		}
+	}, [canvasRef, containerRef, onDraw]);
+
+	useEffect(() => {
+		const container = containerRef.current;
+		if (!container) {
+			return (): void => {};
+		}
+
+		const resizeObserver = new ResizeObserver(updateCanvasSize);
+		resizeObserver.observe(container);
+		updateCanvasSize();
+
+		// when dpr changes, update the canvas size
+		const dprQuery = window.matchMedia('(resolution: 1dppx)');
+		dprQuery.addEventListener('change', updateCanvasSize);
+
+		return (): void => {
+			resizeObserver.disconnect();
+			dprQuery.removeEventListener('change', updateCanvasSize);
+		};
+	}, [containerRef, updateCanvasSize]);
+
+	useEffect(() => {
+		onDraw();
+	}, [onDraw]);
+}

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/hooks/useFlamegraphDrag.ts

@@ -0,0 +1,178 @@
+import {
+	Dispatch,
+	MouseEvent as ReactMouseEvent,
+	MutableRefObject,
+	RefObject,
+	SetStateAction,
+	useCallback,
+	useRef,
+} from 'react';
+
+import { ITraceMetadata } from '../types';
+import { clamp } from '../utils';
+
+interface UseFlamegraphDragArgs {
+	canvasRef: RefObject<HTMLCanvasElement>;
+	containerRef: RefObject<HTMLDivElement>;
+	traceMetadata: ITraceMetadata;
+	viewStartRef: MutableRefObject<number>;
+	viewEndRef: MutableRefObject<number>;
+	setViewStartTs: Dispatch<SetStateAction<number>>;
+	setViewEndTs: Dispatch<SetStateAction<number>>;
+	scrollTopRef: MutableRefObject<number>;
+	setScrollTop: Dispatch<SetStateAction<number>>;
+	totalHeight: number;
+}
+
+interface UseFlamegraphDragResult {
+	handleMouseDown: (e: ReactMouseEvent) => void;
+	handleMouseMove: (e: ReactMouseEvent) => void;
+	handleMouseUp: () => void;
+	handleDragMouseLeave: () => void;
+	suppressClickRef: MutableRefObject<boolean>;
+	isDraggingRef: MutableRefObject<boolean>;
+}
+
+const DRAG_THRESHOLD = 5;
+
+export function useFlamegraphDrag(
+	args: UseFlamegraphDragArgs,
+): UseFlamegraphDragResult {
+	const {
+		canvasRef,
+		containerRef,
+		traceMetadata,
+		viewStartRef,
+		viewEndRef,
+		setViewStartTs,
+		setViewEndTs,
+		scrollTopRef,
+		setScrollTop,
+		totalHeight,
+	} = args;
+
+	const isDraggingRef = useRef(false);
+	const dragStartRef = useRef<{ x: number; y: number } | null>(null);
+	const dragDistanceRef = useRef(0);
+	const suppressClickRef = useRef(false);
+
+	const clampScrollTop = useCallback(
+		(next: number): number => {
+			const container = containerRef.current;
+			if (!container) {
+				return 0;
+			}
+			const viewportHeight = container.clientHeight;
+			const maxScroll = Math.max(0, totalHeight - viewportHeight);
+			return clamp(next, 0, maxScroll);
+		},
+		[containerRef, totalHeight],
+	);
+
+	const handleMouseDown = useCallback(
+		(event: ReactMouseEvent): void => {
+			if (event.button !== 0) {
+				return;
+			}
+			event.preventDefault();
+
+			isDraggingRef.current = true;
+			dragStartRef.current = { x: event.clientX, y: event.clientY };
+			dragDistanceRef.current = 0;
+
+			const canvas = canvasRef.current;
+			if (canvas) {
+				canvas.style.cursor = 'grabbing';
+			}
+		},
+		[canvasRef],
+	);
+
+	const handleMouseMove = useCallback(
+		(event: ReactMouseEvent): void => {
+			if (!isDraggingRef.current || !dragStartRef.current) {
+				return;
+			}
+
+			const canvas = canvasRef.current;
+			if (!canvas) {
+				return;
+			}
+
+			const rect = canvas.getBoundingClientRect();
+			const deltaX = event.clientX - dragStartRef.current.x;
+			const deltaY = event.clientY - dragStartRef.current.y;
+
+			dragDistanceRef.current = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
+
+			// --- Horizontal pan ---
+			const timeSpan = viewEndRef.current - viewStartRef.current;
+			const deltaTime = (deltaX / rect.width) * timeSpan;
+
+			const newStart = viewStartRef.current - deltaTime;
+			const clampedStart = clamp(
+				newStart,
+				traceMetadata.startTime,
+				traceMetadata.endTime - timeSpan,
+			);
+			const clampedEnd = clampedStart + timeSpan;
+
+			viewStartRef.current = clampedStart;
+			viewEndRef.current = clampedEnd;
+			setViewStartTs(clampedStart);
+			setViewEndTs(clampedEnd);
+
+			// --- Vertical scroll pan ---
+			const nextScrollTop = clampScrollTop(scrollTopRef.current - deltaY);
+			scrollTopRef.current = nextScrollTop;
+			setScrollTop(nextScrollTop);
+
+			dragStartRef.current = { x: event.clientX, y: event.clientY };
+		},
+		[
+			canvasRef,
+			traceMetadata,
+			viewStartRef,
+			viewEndRef,
+			setViewStartTs,
+			setViewEndTs,
+			scrollTopRef,
+			setScrollTop,
+			clampScrollTop,
+		],
+	);
+
+	const handleMouseUp = useCallback((): void => {
+		const wasDrag = dragDistanceRef.current > DRAG_THRESHOLD;
+		suppressClickRef.current = wasDrag;
+
+		isDraggingRef.current = false;
+		dragStartRef.current = null;
+		dragDistanceRef.current = 0;
+
+		const canvas = canvasRef.current;
+		if (canvas) {
+			canvas.style.cursor = 'grab';
+		}
+	}, [canvasRef]);
+
+	const handleDragMouseLeave = useCallback((): void => {
+		isDraggingRef.current = false;
+		dragStartRef.current = null;
+		dragDistanceRef.current = 0;
+
+		const canvas = canvasRef.current;
+		if (canvas) {
+			canvas.style.cursor = 'grab';
+		}
+	}, [canvasRef]);
+
+	return {
+		handleMouseDown,
+		handleMouseMove,
+		handleMouseUp,
+		handleDragMouseLeave,
+		suppressClickRef,
+		isDraggingRef,
+	};
+}

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/hooks/useFlamegraphDraw.ts

@@ -0,0 +1,302 @@
+import React, { RefObject, useCallback, useRef } from 'react';
+import { themeColors } from 'constants/theme';
+import { generateColor } from 'lib/uPlotLib/utils/generateColor';
+import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+
+import { ConnectorLine } from '../computeVisualLayout';
+import { SpanRect } from '../types';
+import {
+	clamp,
+	drawSpanBar,
+	FlamegraphRowMetrics,
+	getFlamegraphRowMetrics,
+	getSpanColor,
+} from '../utils';
+
+interface UseFlamegraphDrawArgs {
+	canvasRef: RefObject<HTMLCanvasElement>;
+	containerRef: RefObject<HTMLDivElement>;
+	spans: FlamegraphSpan[][];
+	connectors: ConnectorLine[];
+	viewStartTs: number;
+	viewEndTs: number;
+	scrollTop: number;
+	rowHeight: number;
+	selectedSpanId: string | undefined;
+	hoveredSpanId: string;
+	isDarkMode: boolean;
+	spanRectsRef?: React.MutableRefObject<SpanRect[]>;
+}
+
+interface UseFlamegraphDrawResult {
+	drawFlamegraph: () => void;
+	spanRectsRef: RefObject<SpanRect[]>;
+}
+
+const OVERSCAN_ROWS = 4;
+
+interface DrawLevelArgs {
+	ctx: CanvasRenderingContext2D;
+	levelSpans: FlamegraphSpan[];
+	levelIndex: number;
+	y: number;
+	viewStartTs: number;
+	timeSpan: number;
+	cssWidth: number;
+	selectedSpanId: string | undefined;
+	hoveredSpanId: string;
+	isDarkMode: boolean;
+	spanRectsArray: SpanRect[];
+	metrics: FlamegraphRowMetrics;
+}
+
+function drawLevel(args: DrawLevelArgs): void {
+	const {
+		ctx,
+		levelSpans,
+		levelIndex,
+		y,
+		viewStartTs,
+		timeSpan,
+		cssWidth,
+		selectedSpanId,
+		hoveredSpanId,
+		isDarkMode,
+		spanRectsArray,
+		metrics,
+	} = args;
+
+	const viewEndTs = viewStartTs + timeSpan;
+
+	for (let i = 0; i < levelSpans.length; i++) {
+		const span = levelSpans[i];
+		const spanStartMs = span.timestamp;
+		const spanEndMs = span.timestamp + span.durationNano / 1e6;
+
+		// Time culling -- skip spans entirely outside the visible time window
+		if (spanEndMs < viewStartTs || spanStartMs > viewEndTs) {
+			continue;
+		}
+
+		const leftOffset = ((spanStartMs - viewStartTs) / timeSpan) * cssWidth;
+		const rightEdge = ((spanEndMs - viewStartTs) / timeSpan) * cssWidth;
+		let width = rightEdge - leftOffset;
+
+		// Clamp to visible x-range
+		if (leftOffset < 0) {
+			width += leftOffset;
+			if (width <= 0) {
+				continue;
+			}
+		}
+		if (rightEdge > cssWidth) {
+			width = cssWidth - Math.max(0, leftOffset);
+			if (width <= 0) {
+				continue;
+			}
+		}
+
+		// Minimum 1px width so tiny spans remain visible
+		width = clamp(width, 1, Infinity);
+
+		const color = getSpanColor({ span, isDarkMode });
+
+		drawSpanBar({
+			ctx,
+			span,
+			x: Math.max(0, leftOffset),
+			y,
+			width,
+			levelIndex,
+			spanRectsArray,
+			color,
+			isDarkMode,
+			metrics,
+			selectedSpanId,
+			hoveredSpanId,
+		});
+	}
+}
+
+interface DrawConnectorLinesArgs {
+	ctx: CanvasRenderingContext2D;
+	connectors: ConnectorLine[];
+	scrollTop: number;
+	viewStartTs: number;
+	timeSpan: number;
+	cssWidth: number;
+	viewportHeight: number;
+	metrics: FlamegraphRowMetrics;
+}
+
+function drawConnectorLines(args: DrawConnectorLinesArgs): void {
+	const {
+		ctx,
+		connectors,
+		scrollTop,
+		viewStartTs,
+		timeSpan,
+		cssWidth,
+		viewportHeight,
+		metrics,
+	} = args;
+
+	ctx.save();
+	ctx.lineWidth = 1;
+	ctx.globalAlpha = 0.6;
+
+	for (const conn of connectors) {
+		const xFrac = (conn.timestampMs - viewStartTs) / timeSpan;
+		if (xFrac < -0.01 || xFrac > 1.01) {
+			continue;
+		}
+
+		const parentY =
+			conn.parentRow * metrics.ROW_HEIGHT -
+			scrollTop +
+			metrics.SPAN_BAR_Y_OFFSET +
+			metrics.SPAN_BAR_HEIGHT;
+		const childY =
+			conn.childRow * metrics.ROW_HEIGHT - scrollTop + metrics.SPAN_BAR_Y_OFFSET;
+
+		// Skip if entirely outside viewport
+		if (parentY > viewportHeight || childY < 0) {
+			continue;
+		}
+
+		const color = generateColor(
+			conn.serviceName,
+			themeColors.traceDetailColorsV3,
+		);
+		ctx.strokeStyle = color;
+
+		const x = clamp(xFrac * cssWidth, 0, cssWidth);
+		ctx.beginPath();
+		ctx.moveTo(x, parentY);
+		ctx.lineTo(x, childY);
+		ctx.stroke();
+	}
+
+	ctx.restore();
+}
+
+export function useFlamegraphDraw(
+	args: UseFlamegraphDrawArgs,
+): UseFlamegraphDrawResult {
+	const {
+		canvasRef,
+		containerRef,
+		spans,
+		connectors,
+		viewStartTs,
+		viewEndTs,
+		scrollTop,
+		rowHeight,
+		selectedSpanId,
+		hoveredSpanId,
+		isDarkMode,
+		spanRectsRef: spanRectsRefProp,
+	} = args;
+
+	const spanRectsRefInternal = useRef<SpanRect[]>([]);
+	const spanRectsRef = spanRectsRefProp ?? spanRectsRefInternal;
+
+	const drawFlamegraph = useCallback(() => {
+		const canvas = canvasRef.current;
+		const container = containerRef.current;
+		if (!canvas || !container) {
+			return;
+		}
+
+		const ctx = canvas.getContext('2d');
+		if (!ctx) {
+			return;
+		}
+
+		const dpr = window.devicePixelRatio || 1;
+		ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
+
+		const timeSpan = viewEndTs - viewStartTs;
+		if (timeSpan <= 0) {
+			return;
+		}
+
+		const cssWidth = canvas.width / dpr;
+		const metrics = getFlamegraphRowMetrics(rowHeight);
+
+		// ---- Vertical clipping window ----
+		const viewportHeight = container.clientHeight;
+
+		//starts drawing OVERSCAN_ROWS(4) rows above the visible area.
+		const firstLevel = Math.max(
+			0,
+			Math.floor(scrollTop / metrics.ROW_HEIGHT) - OVERSCAN_ROWS,
+		);
+		// adds 2*OVERSCAN_ROWS extra rows above and below the visible area.
+		const visibleLevelCount =
+			Math.ceil(viewportHeight / metrics.ROW_HEIGHT) + 2 * OVERSCAN_ROWS;
+
+		const lastLevel = Math.min(spans.length - 1, firstLevel + visibleLevelCount);
+
+		ctx.clearRect(0, 0, cssWidth, viewportHeight);
+
+		// ---- Draw connector lines (behind span bars) ----
+		drawConnectorLines({
+			ctx,
+			connectors,
+			scrollTop,
+			viewStartTs,
+			timeSpan,
+			cssWidth,
+			viewportHeight,
+			metrics,
+		});
+
+		const spanRectsArray: SpanRect[] = [];
+
+		// ---- Draw only visible levels ----
+		for (let levelIndex = firstLevel; levelIndex <= lastLevel; levelIndex++) {
+			const levelSpans = spans[levelIndex];
+			if (!levelSpans) {
+				continue;
+			}
+
+			drawLevel({
+				ctx,
+				levelSpans,
+				levelIndex,
+				y: levelIndex * metrics.ROW_HEIGHT - scrollTop,
+				viewStartTs,
+				timeSpan,
+				cssWidth,
+				selectedSpanId,
+				hoveredSpanId,
+				isDarkMode,
+				spanRectsArray,
+				metrics,
+			});
+		}
+
+		spanRectsRef.current = spanRectsArray;
+	}, [
+		canvasRef,
+		containerRef,
+		spanRectsRef,
+		spans,
+		connectors,
+		viewStartTs,
+		viewEndTs,
+		scrollTop,
+		rowHeight,
+		selectedSpanId,
+		hoveredSpanId,
+		isDarkMode,
+	]);
+
+	// TODO: spanRectsRef is a flat array — hover scans all visible rects O(N).
+	// Upgrade to per-level buckets: spanRects[levelIndex] = [...] so hover can
+	// compute level from mouseY / ROW_HEIGHT and scan only that row.
+	// Further: binary search within a level by x (spans are sorted by start time)
+	// to reduce hover cost from O(N) to O(log N).
+	return { drawFlamegraph, spanRectsRef };
+}

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/hooks/useFlamegraphHover.ts

@@ -0,0 +1,216 @@
+import {
+	Dispatch,
+	MouseEvent as ReactMouseEvent,
+	MutableRefObject,
+	RefObject,
+	SetStateAction,
+	useCallback,
+	useState,
+} from 'react';
+import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+
+import { SpanRect } from '../types';
+import { ITraceMetadata } from '../types';
+import { getSpanColor } from '../utils';
+
+function getCanvasPointer(
+	canvas: HTMLCanvasElement,
+	clientX: number,
+	clientY: number,
+): { cssX: number; cssY: number } | null {
+	const rect = canvas.getBoundingClientRect();
+	const dpr = window.devicePixelRatio || 1;
+	const cssWidth = canvas.width / dpr;
+	const cssHeight = canvas.height / dpr;
+	const cssX = (clientX - rect.left) * (cssWidth / rect.width);
+	const cssY = (clientY - rect.top) * (cssHeight / rect.height);
+	return { cssX, cssY };
+}
+
+function findSpanAtPosition(
+	cssX: number,
+	cssY: number,
+	spanRects: SpanRect[],
+): FlamegraphSpan | null {
+	for (let i = spanRects.length - 1; i >= 0; i--) {
+		const r = spanRects[i];
+		if (
+			cssX >= r.x &&
+			cssX <= r.x + r.width &&
+			cssY >= r.y &&
+			cssY <= r.y + r.height
+		) {
+			return r.span;
+		}
+	}
+	return null;
+}
+
+export interface TooltipContent {
+	serviceName: string;
+	spanName: string;
+	status: 'ok' | 'warning' | 'error';
+	startMs: number;
+	durationMs: number;
+	clientX: number;
+	clientY: number;
+	spanColor: string;
+}
+
+interface UseFlamegraphHoverArgs {
+	canvasRef: RefObject<HTMLCanvasElement>;
+	spanRectsRef: MutableRefObject<SpanRect[]>;
+	traceMetadata: ITraceMetadata;
+	viewStartTs: number;
+	viewEndTs: number;
+	isDraggingRef: MutableRefObject<boolean>;
+	suppressClickRef: MutableRefObject<boolean>;
+	onSpanClick: (spanId: string) => void;
+	isDarkMode: boolean;
+}
+
+interface UseFlamegraphHoverResult {
+	hoveredSpanId: string | null;
+	setHoveredSpanId: Dispatch<SetStateAction<string | null>>;
+	handleHoverMouseMove: (e: ReactMouseEvent) => void;
+	handleHoverMouseLeave: () => void;
+	handleClick: (e: ReactMouseEvent) => void;
+	tooltipContent: TooltipContent | null;
+}
+
+export function useFlamegraphHover(
+	args: UseFlamegraphHoverArgs,
+): UseFlamegraphHoverResult {
+	const {
+		canvasRef,
+		spanRectsRef,
+		traceMetadata,
+		viewStartTs,
+		viewEndTs,
+		isDraggingRef,
+		suppressClickRef,
+		onSpanClick,
+		isDarkMode,
+	} = args;
+
+	const [hoveredSpanId, setHoveredSpanId] = useState<string | null>(null);
+	const [tooltipContent, setTooltipContent] = useState<TooltipContent | null>(
+		null,
+	);
+
+	const isZoomed =
+		viewStartTs !== traceMetadata.startTime ||
+		viewEndTs !== traceMetadata.endTime;
+
+	const updateCursor = useCallback(
+		(canvas: HTMLCanvasElement, span: FlamegraphSpan | null): void => {
+			if (span) {
+				canvas.style.cursor = 'pointer';
+			} else if (isZoomed) {
+				canvas.style.cursor = 'grab';
+			} else {
+				canvas.style.cursor = 'default';
+			}
+		},
+		[isZoomed],
+	);
+
+	const handleHoverMouseMove = useCallback(
+		(e: ReactMouseEvent): void => {
+			if (isDraggingRef.current) {
+				return;
+			}
+
+			const canvas = canvasRef.current;
+			if (!canvas) {
+				return;
+			}
+
+			const pointer = getCanvasPointer(canvas, e.clientX, e.clientY);
+			if (!pointer) {
+				return;
+			}
+
+			const span = findSpanAtPosition(
+				pointer.cssX,
+				pointer.cssY,
+				spanRectsRef.current,
+			);
+
+			if (span) {
+				setHoveredSpanId(span.spanId);
+				setTooltipContent({
+					serviceName: span.serviceName || '',
+					spanName: span.name || 'unknown',
+					status: span.hasError ? 'error' : 'ok',
+					startMs: span.timestamp - traceMetadata.startTime,
+					durationMs: span.durationNano / 1e6,
+					clientX: e.clientX,
+					clientY: e.clientY,
+					spanColor: getSpanColor({ span, isDarkMode }),
+				});
+				updateCursor(canvas, span);
+			} else {
+				setHoveredSpanId(null);
+				setTooltipContent(null);
+				updateCursor(canvas, null);
+			}
+		},
+		[
+			canvasRef,
+			spanRectsRef,
+			traceMetadata.startTime,
+			isDraggingRef,
+			updateCursor,
+			isDarkMode,
+		],
+	);
+
+	const handleHoverMouseLeave = useCallback((): void => {
+		setHoveredSpanId(null);
+		setTooltipContent(null);
+
+		const canvas = canvasRef.current;
+		if (canvas) {
+			updateCursor(canvas, null);
+		}
+	}, [canvasRef, updateCursor]);
+
+	const handleClick = useCallback(
+		(e: ReactMouseEvent): void => {
+			if (suppressClickRef.current) {
+				return;
+			}
+
+			const canvas = canvasRef.current;
+			if (!canvas) {
+				return;
+			}
+
+			const pointer = getCanvasPointer(canvas, e.clientX, e.clientY);
+			if (!pointer) {
+				return;
+			}
+
+			const span = findSpanAtPosition(
+				pointer.cssX,
+				pointer.cssY,
+				spanRectsRef.current,
+			);
+
+			if (span) {
+				onSpanClick(span.spanId);
+			}
+		},
+		[canvasRef, spanRectsRef, suppressClickRef, onSpanClick],
+	);
+
+	return {
+		hoveredSpanId,
+		setHoveredSpanId,
+		handleHoverMouseMove,
+		handleHoverMouseLeave,
+		handleClick,
+		tooltipContent,
+	};
+}

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/hooks/useFlamegraphZoom.ts

@@ -0,0 +1,224 @@
+import {
+	Dispatch,
+	MutableRefObject,
+	RefObject,
+	SetStateAction,
+	useCallback,
+	useEffect,
+	useRef,
+} from 'react';
+
+import {
+	DEFAULT_ROW_HEIGHT,
+	MAX_ROW_HEIGHT,
+	MIN_ROW_HEIGHT,
+	MIN_VISIBLE_SPAN_MS,
+	PINCH_ZOOM_INTENSITY_H,
+	PINCH_ZOOM_INTENSITY_V,
+	SCROLL_ZOOM_INTENSITY_H,
+	SCROLL_ZOOM_INTENSITY_V,
+} from '../constants';
+import { ITraceMetadata } from '../types';
+import { clamp } from '../utils';
+
+interface UseFlamegraphZoomArgs {
+	canvasRef: RefObject<HTMLCanvasElement>;
+	traceMetadata: ITraceMetadata;
+	viewStartRef: MutableRefObject<number>;
+	viewEndRef: MutableRefObject<number>;
+	rowHeightRef: MutableRefObject<number>;
+	setViewStartTs: Dispatch<SetStateAction<number>>;
+	setViewEndTs: Dispatch<SetStateAction<number>>;
+	setRowHeight: Dispatch<SetStateAction<number>>;
+}
+
+interface UseFlamegraphZoomResult {
+	handleResetZoom: () => void;
+	isOverFlamegraphRef: MutableRefObject<boolean>;
+}
+
+function getCanvasPointer(
+	canvasRef: RefObject<HTMLCanvasElement>,
+	clientX: number,
+): { cssX: number; cssWidth: number } | null {
+	const canvas = canvasRef.current;
+	if (!canvas) {
+		return null;
+	}
+
+	const rect = canvas.getBoundingClientRect();
+	const dpr = window.devicePixelRatio || 1;
+	const cssWidth = canvas.width / dpr;
+	const cssX = (clientX - rect.left) * (cssWidth / rect.width);
+
+	return { cssX, cssWidth };
+}
+
+export function useFlamegraphZoom(
+	args: UseFlamegraphZoomArgs,
+): UseFlamegraphZoomResult {
+	const {
+		canvasRef,
+		traceMetadata,
+		viewStartRef,
+		viewEndRef,
+		rowHeightRef,
+		setViewStartTs,
+		setViewEndTs,
+		setRowHeight,
+	} = args;
+
+	const isOverFlamegraphRef = useRef(false);
+	const wheelDeltaRef = useRef(0);
+	const rafRef = useRef<number | null>(null);
+	const lastCursorXRef = useRef(0);
+	const lastCssWidthRef = useRef(1);
+	const lastIsPinchRef = useRef(false);
+	const lastWheelClientXRef = useRef<number | null>(null);
+
+	// Prevent browser zoom when pinching over the flamegraph
+	useEffect(() => {
+		const onWheel = (e: WheelEvent): void => {
+			if (isOverFlamegraphRef.current && e.ctrlKey) {
+				e.preventDefault();
+			}
+		};
+
+		window.addEventListener('wheel', onWheel, { passive: false, capture: true });
+
+		return (): void => {
+			window.removeEventListener('wheel', onWheel, {
+				capture: true,
+			} as EventListenerOptions);
+		};
+	}, []);
+
+	const applyWheelZoom = useCallback(() => {
+		rafRef.current = null;
+
+		const cssWidth = lastCssWidthRef.current || 1;
+		const cursorX = lastCursorXRef.current;
+		const fullSpanMs = traceMetadata.endTime - traceMetadata.startTime;
+
+		const oldStart = viewStartRef.current;
+		const oldEnd = viewEndRef.current;
+		const oldSpan = oldEnd - oldStart;
+
+		const deltaY = wheelDeltaRef.current;
+		wheelDeltaRef.current = 0;
+		if (deltaY === 0) {
+			return;
+		}
+
+		const zoomH = lastIsPinchRef.current
+			? PINCH_ZOOM_INTENSITY_H
+			: SCROLL_ZOOM_INTENSITY_H;
+		const zoomV = lastIsPinchRef.current
+			? PINCH_ZOOM_INTENSITY_V
+			: SCROLL_ZOOM_INTENSITY_V;
+
+		const factorH = Math.exp(deltaY * zoomH);
+		const factorV = Math.exp(deltaY * zoomV);
+
+		// --- Horizontal zoom ---
+		const desiredSpan = oldSpan * factorH;
+		const minSpanMs = Math.max(
+			MIN_VISIBLE_SPAN_MS,
+			oldSpan / Math.max(cssWidth, 1),
+		);
+		const clampedSpan = clamp(desiredSpan, minSpanMs, fullSpanMs);
+
+		const cursorRatio = clamp(cursorX / cssWidth, 0, 1);
+		const anchorTs = oldStart + cursorRatio * oldSpan;
+
+		let nextStart = anchorTs - cursorRatio * clampedSpan;
+		nextStart = clamp(
+			nextStart,
+			traceMetadata.startTime,
+			traceMetadata.endTime - clampedSpan,
+		);
+		const nextEnd = nextStart + clampedSpan;
+
+		// --- Vertical zoom (row height) ---
+		const desiredRow = rowHeightRef.current * (1 / factorV);
+		const nextRow = clamp(desiredRow, MIN_ROW_HEIGHT, MAX_ROW_HEIGHT);
+
+		// Write refs immediately so rapid wheel events read fresh values
+		viewStartRef.current = nextStart;
+		viewEndRef.current = nextEnd;
+		rowHeightRef.current = nextRow;
+
+		setViewStartTs(nextStart);
+		setViewEndTs(nextEnd);
+		setRowHeight(nextRow);
+	}, [
+		traceMetadata,
+		viewStartRef,
+		viewEndRef,
+		rowHeightRef,
+		setViewStartTs,
+		setViewEndTs,
+		setRowHeight,
+	]);
+
+	// Native wheel listener on the canvas (passive: false for reliable preventDefault)
+	useEffect(() => {
+		const canvas = canvasRef.current;
+		if (!canvas) {
+			return (): void => {};
+		}
+
+		const onWheel = (e: WheelEvent): void => {
+			e.preventDefault();
+
+			const pointer = getCanvasPointer(canvasRef, e.clientX);
+			if (!pointer) {
+				return;
+			}
+
+			// Flush accumulated delta if cursor moved significantly
+			if (lastWheelClientXRef.current !== null) {
+				const moved = Math.abs(e.clientX - lastWheelClientXRef.current);
+				if (moved > 6) {
+					wheelDeltaRef.current = 0;
+				}
+			}
+			lastWheelClientXRef.current = e.clientX;
+
+			lastIsPinchRef.current = e.ctrlKey;
+			lastCssWidthRef.current = pointer.cssWidth;
+			lastCursorXRef.current = pointer.cssX;
+			wheelDeltaRef.current += e.deltaY;
+
+			if (rafRef.current == null) {
+				rafRef.current = requestAnimationFrame(applyWheelZoom);
+			}
+		};
+
+		canvas.addEventListener('wheel', onWheel, { passive: false });
+
+		return (): void => {
+			canvas.removeEventListener('wheel', onWheel);
+		};
+	}, [canvasRef, applyWheelZoom]);
+
+	const handleResetZoom = useCallback(() => {
+		viewStartRef.current = traceMetadata.startTime;
+		viewEndRef.current = traceMetadata.endTime;
+		rowHeightRef.current = DEFAULT_ROW_HEIGHT;
+
+		setViewStartTs(traceMetadata.startTime);
+		setViewEndTs(traceMetadata.endTime);
+		setRowHeight(DEFAULT_ROW_HEIGHT);
+	}, [
+		traceMetadata,
+		viewStartRef,
+		viewEndRef,
+		rowHeightRef,
+		setViewStartTs,
+		setViewEndTs,
+		setRowHeight,
+	]);
+
+	return { handleResetZoom, isOverFlamegraphRef };
+}

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/hooks/useScrollToSpan.ts

@@ -0,0 +1,118 @@
+import {
+	Dispatch,
+	MutableRefObject,
+	RefObject,
+	SetStateAction,
+	useEffect,
+} from 'react';
+import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+
+import { MIN_VISIBLE_SPAN_MS } from '../constants';
+import { ITraceMetadata } from '../types';
+import { clamp, findSpanById, getFlamegraphRowMetrics } from '../utils';
+
+interface UseScrollToSpanArgs {
+	firstSpanAtFetchLevel: string;
+	spans: FlamegraphSpan[][];
+	traceMetadata: ITraceMetadata;
+	containerRef: RefObject<HTMLDivElement>;
+	viewStartRef: MutableRefObject<number>;
+	viewEndRef: MutableRefObject<number>;
+	scrollTopRef: MutableRefObject<number>;
+	rowHeight: number;
+	setViewStartTs: Dispatch<SetStateAction<number>>;
+	setViewEndTs: Dispatch<SetStateAction<number>>;
+	setScrollTop: Dispatch<SetStateAction<number>>;
+}
+
+/**
+ * When firstSpanAtFetchLevel (from URL spanId) changes, scroll and zoom the
+ * flamegraph so the selected span is centered in view.
+ */
+export function useScrollToSpan(args: UseScrollToSpanArgs): void {
+	const {
+		firstSpanAtFetchLevel,
+		spans,
+		traceMetadata,
+		containerRef,
+		viewStartRef,
+		viewEndRef,
+		scrollTopRef,
+		rowHeight,
+		setViewStartTs,
+		setViewEndTs,
+		setScrollTop,
+	} = args;
+
+	useEffect(() => {
+		if (!firstSpanAtFetchLevel || spans.length === 0) {
+			return;
+		}
+
+		const result = findSpanById(spans, firstSpanAtFetchLevel);
+		if (!result) {
+			return;
+		}
+
+		const { span, levelIndex } = result;
+		const container = containerRef.current;
+		if (!container) {
+			return;
+		}
+
+		const metrics = getFlamegraphRowMetrics(rowHeight);
+		const viewportHeight = container.clientHeight;
+		const totalHeight = spans.length * metrics.ROW_HEIGHT;
+		const maxScroll = Math.max(0, totalHeight - viewportHeight);
+
+		// Vertical: center the span's row in the viewport
+		const targetScrollTop = clamp(
+			levelIndex * metrics.ROW_HEIGHT -
+				viewportHeight / 2 +
+				metrics.ROW_HEIGHT / 2,
+			0,
+			maxScroll,
+		);
+
+		// Horizontal: zoom to span with padding (2x span duration), center it
+		const spanStartMs = span.timestamp;
+		const spanEndMs = span.timestamp + span.durationNano / 1e6;
+		const spanDurationMs = spanEndMs - spanStartMs;
+		const spanCenterMs = (spanStartMs + spanEndMs) / 2;
+
+		const visibleWindowMs = Math.max(spanDurationMs * 2, MIN_VISIBLE_SPAN_MS);
+		const fullSpanMs = traceMetadata.endTime - traceMetadata.startTime;
+		const clampedWindow = clamp(visibleWindowMs, MIN_VISIBLE_SPAN_MS, fullSpanMs);
+
+		let targetViewStart = spanCenterMs - clampedWindow / 2;
+		let targetViewEnd = spanCenterMs + clampedWindow / 2;
+
+		targetViewStart = clamp(
+			targetViewStart,
+			traceMetadata.startTime,
+			traceMetadata.endTime - clampedWindow,
+		);
+		targetViewEnd = targetViewStart + clampedWindow;
+
+		// Apply immediately (instant jump)
+		viewStartRef.current = targetViewStart;
+		viewEndRef.current = targetViewEnd;
+		scrollTopRef.current = targetScrollTop;
+
+		setViewStartTs(targetViewStart);
+		setViewEndTs(targetViewEnd);
+		setScrollTop(targetScrollTop);
+	}, [
+		firstSpanAtFetchLevel,
+		spans,
+		traceMetadata,
+		containerRef,
+		viewStartRef,
+		viewEndRef,
+		scrollTopRef,
+		rowHeight,
+		setViewStartTs,
+		setViewEndTs,
+		setScrollTop,
+	]);
+}

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/hooks/useVisualLayoutWorker.ts

@@ -0,0 +1,98 @@
+import { useEffect, useRef, useState } from 'react';
+import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+
+import { computeVisualLayout, VisualLayout } from '../computeVisualLayout';
+import { LayoutWorkerResponse } from '../visualLayoutWorkerTypes';
+
+const EMPTY_LAYOUT: VisualLayout = {
+	visualRows: [],
+	spanToVisualRow: {},
+	connectors: [],
+	totalVisualRows: 0,
+};
+
+function computeLayoutOrEmpty(spans: FlamegraphSpan[][]): VisualLayout {
+	return spans.length ? computeVisualLayout(spans) : EMPTY_LAYOUT;
+}
+
+function createLayoutWorker(): Worker {
+	return new Worker(new URL('../visualLayout.worker.ts', import.meta.url), {
+		type: 'module',
+	});
+}
+
+export function useVisualLayoutWorker(
+	spans: FlamegraphSpan[][],
+): { layout: VisualLayout; isComputing: boolean } {
+	const [layout, setLayout] = useState<VisualLayout>(EMPTY_LAYOUT);
+	const [isComputing, setIsComputing] = useState(false);
+	const workerRef = useRef<Worker | null>(null);
+	const requestIdRef = useRef(0);
+	const fallbackRef = useRef(typeof Worker === 'undefined');
+
+	// Effect: post message to worker when spans change
+	useEffect(() => {
+		if (fallbackRef.current) {
+			setLayout(computeLayoutOrEmpty(spans));
+			return;
+		}
+
+		if (!workerRef.current) {
+			try {
+				workerRef.current = createLayoutWorker();
+			} catch {
+				fallbackRef.current = true;
+				setLayout(computeLayoutOrEmpty(spans));
+				return;
+			}
+		}
+
+		if (!spans.length) {
+			setLayout(EMPTY_LAYOUT);
+			return;
+		}
+
+		const currentId = ++requestIdRef.current;
+		setIsComputing(true);
+
+		const worker = workerRef.current;
+
+		const onMessage = (e: MessageEvent<LayoutWorkerResponse>): void => {
+			if (e.data.requestId !== requestIdRef.current) {
+				return;
+			}
+			if (e.data.type === 'result') {
+				setLayout(e.data.layout);
+			} else {
+				setLayout(computeVisualLayout(spans));
+			}
+			setIsComputing(false);
+		};
+
+		const onError = (): void => {
+			if (requestIdRef.current === currentId) {
+				setLayout(computeVisualLayout(spans));
+				setIsComputing(false);
+			}
+		};
+
+		worker.addEventListener('message', onMessage);
+		worker.addEventListener('error', onError);
+		worker.postMessage({ type: 'compute', requestId: currentId, spans });
+
+		return (): void => {
+			worker.removeEventListener('message', onMessage);
+			worker.removeEventListener('error', onError);
+		};
+	}, [spans]);
+
+	// Cleanup worker on unmount
+	useEffect(
+		() => (): void => {
+			workerRef.current?.terminate();
+		},
+		[],
+	);
+
+	return { layout, isComputing };
+}

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/types.ts

@@ -0,0 +1,24 @@
+import { Dispatch, SetStateAction } from 'react';
+import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+
+export interface ITraceMetadata {
+	startTime: number;
+	endTime: number;
+}
+
+export interface FlamegraphCanvasProps {
+	spans: FlamegraphSpan[][];
+	firstSpanAtFetchLevel: string;
+	setFirstSpanAtFetchLevel: Dispatch<SetStateAction<string>>;
+	onSpanClick: (spanId: string) => void;
+	traceMetadata: ITraceMetadata;
+}
+
+export interface SpanRect {
+	span: FlamegraphSpan;
+	x: number;
+	y: number;
+	width: number;
+	height: number;
+	level: number;
+}

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/utils.ts

@@ -0,0 +1,355 @@
+import { themeColors } from 'constants/theme';
+import { convertTimeToRelevantUnit } from 'container/TraceDetail/utils';
+import { generateColor } from 'lib/uPlotLib/utils/generateColor';
+import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+
+import {
+	DASHED_BORDER_LINE_DASH,
+	EVENT_DOT_SIZE_RATIO,
+	LABEL_FONT,
+	LABEL_PADDING_X,
+	MAX_EVENT_DOT_SIZE,
+	MAX_SPAN_BAR_HEIGHT,
+	MIN_EVENT_DOT_SIZE,
+	MIN_SPAN_BAR_HEIGHT,
+	MIN_WIDTH_FOR_NAME,
+	MIN_WIDTH_FOR_NAME_AND_DURATION,
+	SPAN_BAR_HEIGHT_RATIO,
+} from './constants';
+import { SpanRect } from './types';
+
+export function clamp(v: number, min: number, max: number): number {
+	return Math.max(min, Math.min(max, v));
+}
+
+/** Create diagonal stripe pattern for selected/hovered span (repeating-linear-gradient -45deg style). */
+function createStripePattern(
+	ctx: CanvasRenderingContext2D,
+	color: string,
+): CanvasPattern | null {
+	const size = 20;
+	const patternCanvas = document.createElement('canvas');
+	patternCanvas.width = size;
+	patternCanvas.height = size;
+	const pCtx = patternCanvas.getContext('2d');
+	if (!pCtx) {
+		return null;
+	}
+
+	// Diagonal stripes at -45deg: 10px transparent, 10px colored (0.04 opacity), repeat
+	pCtx.globalAlpha = 0.04;
+	pCtx.strokeStyle = color;
+	pCtx.lineWidth = 10;
+	pCtx.lineCap = 'butt';
+	for (let i = -size; i < size * 2; i += size) {
+		pCtx.beginPath();
+		pCtx.moveTo(i + size, 0);
+		pCtx.lineTo(i, size);
+		pCtx.stroke();
+	}
+	pCtx.globalAlpha = 1;
+
+	return ctx.createPattern(patternCanvas, 'repeat');
+}
+
+export function findSpanById(
+	spans: FlamegraphSpan[][],
+	spanId: string,
+): { span: FlamegraphSpan; levelIndex: number } | null {
+	for (let levelIndex = 0; levelIndex < spans.length; levelIndex++) {
+		const span = spans[levelIndex]?.find((s) => s.spanId === spanId);
+		if (span) {
+			return { span, levelIndex };
+		}
+	}
+	return null;
+}
+
+export interface FlamegraphRowMetrics {
+	ROW_HEIGHT: number;
+	SPAN_BAR_HEIGHT: number;
+	SPAN_BAR_Y_OFFSET: number;
+	EVENT_DOT_SIZE: number;
+}
+
+export function getFlamegraphRowMetrics(
+	rowHeight: number,
+): FlamegraphRowMetrics {
+	const spanBarHeight = clamp(
+		Math.round(rowHeight * SPAN_BAR_HEIGHT_RATIO),
+		MIN_SPAN_BAR_HEIGHT,
+		MAX_SPAN_BAR_HEIGHT,
+	);
+	const spanBarYOffset = Math.floor((rowHeight - spanBarHeight) / 2);
+	const eventDotSize = clamp(
+		Math.round(spanBarHeight * EVENT_DOT_SIZE_RATIO),
+		MIN_EVENT_DOT_SIZE,
+		MAX_EVENT_DOT_SIZE,
+	);
+
+	return {
+		ROW_HEIGHT: rowHeight,
+		SPAN_BAR_HEIGHT: spanBarHeight,
+		SPAN_BAR_Y_OFFSET: spanBarYOffset,
+		EVENT_DOT_SIZE: eventDotSize,
+	};
+}
+
+interface GetSpanColorArgs {
+	span: FlamegraphSpan;
+	isDarkMode: boolean;
+}
+
+export function getSpanColor(args: GetSpanColorArgs): string {
+	const { span, isDarkMode } = args;
+	let color = generateColor(span.serviceName, themeColors.traceDetailColorsV3);
+
+	if (span.hasError) {
+		color = isDarkMode ? 'rgb(239, 68, 68)' : 'rgb(220, 38, 38)';
+	}
+
+	return color;
+}
+
+interface DrawEventDotArgs {
+	ctx: CanvasRenderingContext2D;
+	x: number;
+	y: number;
+	isError: boolean;
+	isDarkMode: boolean;
+	eventDotSize: number;
+}
+
+export function drawEventDot(args: DrawEventDotArgs): void {
+	const { ctx, x, y, isError, isDarkMode, eventDotSize } = args;
+
+	ctx.save();
+	ctx.translate(x, y);
+	ctx.rotate(Math.PI / 4);
+
+	if (isError) {
+		ctx.fillStyle = isDarkMode ? 'rgb(239, 68, 68)' : 'rgb(220, 38, 38)';
+		ctx.strokeStyle = isDarkMode ? 'rgb(185, 28, 28)' : 'rgb(153, 27, 27)';
+	} else {
+		ctx.fillStyle = isDarkMode ? 'rgb(14, 165, 233)' : 'rgb(6, 182, 212)';
+		ctx.strokeStyle = isDarkMode ? 'rgb(2, 132, 199)' : 'rgb(8, 145, 178)';
+	}
+
+	ctx.lineWidth = 1;
+	const half = eventDotSize / 2;
+	ctx.fillRect(-half, -half, eventDotSize, eventDotSize);
+	ctx.strokeRect(-half, -half, eventDotSize, eventDotSize);
+	ctx.restore();
+}
+
+interface DrawSpanBarArgs {
+	ctx: CanvasRenderingContext2D;
+	span: FlamegraphSpan;
+	x: number;
+	y: number;
+	width: number;
+	levelIndex: number;
+	spanRectsArray: SpanRect[];
+	color: string;
+	isDarkMode: boolean;
+	metrics: FlamegraphRowMetrics;
+	selectedSpanId?: string | null;
+	hoveredSpanId?: string | null;
+}
+
+export function drawSpanBar(args: DrawSpanBarArgs): void {
+	const {
+		ctx,
+		span,
+		x,
+		y,
+		width,
+		levelIndex,
+		spanRectsArray,
+		color,
+		isDarkMode,
+		metrics,
+		selectedSpanId,
+		hoveredSpanId,
+	} = args;
+
+	const spanY = y + metrics.SPAN_BAR_Y_OFFSET;
+	const isSelected = selectedSpanId === span.spanId;
+	const isHovered = hoveredSpanId === span.spanId;
+	const isSelectedOrHovered = isSelected || isHovered;
+
+	ctx.beginPath();
+	ctx.roundRect(x, spanY, width, metrics.SPAN_BAR_HEIGHT, 2);
+
+	if (isSelectedOrHovered) {
+		// Diagonal stripe pattern (repeating-linear-gradient -45deg style) + border in span color
+		const pattern = createStripePattern(ctx, color);
+		if (pattern) {
+			ctx.fillStyle = pattern;
+			ctx.fill();
+		}
+		if (isSelected) {
+			ctx.setLineDash(DASHED_BORDER_LINE_DASH);
+		}
+		ctx.strokeStyle = color;
+		ctx.lineWidth = isSelected ? 2 : 1;
+		ctx.stroke();
+		if (isSelected) {
+			ctx.setLineDash([]);
+		}
+	} else {
+		ctx.fillStyle = color;
+		ctx.fill();
+	}
+
+	spanRectsArray.push({
+		span,
+		x,
+		y: spanY,
+		width,
+		height: metrics.SPAN_BAR_HEIGHT,
+		level: levelIndex,
+	});
+
+	span.event?.forEach((event) => {
+		const spanDurationMs = span.durationNano / 1e6;
+		if (spanDurationMs <= 0) {
+			return;
+		}
+
+		const eventTimeMs = event.timeUnixNano / 1e6;
+		const eventOffsetPercent =
+			((eventTimeMs - span.timestamp) / spanDurationMs) * 100;
+		const clampedOffset = clamp(eventOffsetPercent, 1, 99);
+		const eventX = x + (clampedOffset / 100) * width;
+		const eventY = spanY + metrics.SPAN_BAR_HEIGHT / 2;
+
+		drawEventDot({
+			ctx,
+			x: eventX,
+			y: eventY,
+			isError: event.isError,
+			isDarkMode,
+			eventDotSize: metrics.EVENT_DOT_SIZE,
+		});
+	});
+
+	drawSpanLabel({
+		ctx,
+		span,
+		x,
+		y: spanY,
+		width,
+		color,
+		isSelectedOrHovered,
+		isDarkMode,
+		spanBarHeight: metrics.SPAN_BAR_HEIGHT,
+	});
+}
+
+export function formatDuration(durationNano: number): string {
+	const durationMs = durationNano / 1e6;
+	const { time, timeUnitName } = convertTimeToRelevantUnit(durationMs);
+	return `${parseFloat(time.toFixed(2))}${timeUnitName}`;
+}
+
+interface DrawSpanLabelArgs {
+	ctx: CanvasRenderingContext2D;
+	span: FlamegraphSpan;
+	x: number;
+	y: number;
+	width: number;
+	color: string;
+	isSelectedOrHovered: boolean;
+	isDarkMode: boolean;
+	spanBarHeight: number;
+}
+
+function drawSpanLabel(args: DrawSpanLabelArgs): void {
+	const {
+		ctx,
+		span,
+		x,
+		y,
+		width,
+		color,
+		isSelectedOrHovered,
+		isDarkMode,
+		spanBarHeight,
+	} = args;
+
+	if (width < MIN_WIDTH_FOR_NAME) {
+		return;
+	}
+
+	const name = span.name;
+
+	ctx.save();
+
+	// Clip text to span bar bounds
+	ctx.beginPath();
+	ctx.rect(x, y, width, spanBarHeight);
+	ctx.clip();
+
+	ctx.font = LABEL_FONT;
+	ctx.fillStyle = isSelectedOrHovered
+		? color
+		: isDarkMode
+		? 'rgba(0, 0, 0, 0.9)'
+		: 'rgba(255, 255, 255, 0.9)';
+	ctx.textBaseline = 'middle';
+
+	const textY = y + spanBarHeight / 2;
+	const leftX = x + LABEL_PADDING_X;
+	const rightX = x + width - LABEL_PADDING_X;
+	const availableWidth = width - LABEL_PADDING_X * 2;
+
+	if (width >= MIN_WIDTH_FOR_NAME_AND_DURATION) {
+		const duration = formatDuration(span.durationNano);
+		const durationWidth = ctx.measureText(duration).width;
+		const minGap = 6;
+		const nameSpace = availableWidth - durationWidth - minGap;
+
+		// Duration right-aligned
+		ctx.textAlign = 'right';
+		ctx.fillText(duration, rightX, textY);
+
+		// Name left-aligned, truncated to fit remaining space
+		if (nameSpace > 20) {
+			ctx.textAlign = 'left';
+			ctx.fillText(truncateText(ctx, name, nameSpace), leftX, textY);
+		}
+	} else {
+		// Name only, truncated to fit
+		ctx.textAlign = 'left';
+		ctx.fillText(truncateText(ctx, name, availableWidth), leftX, textY);
+	}
+
+	ctx.restore();
+}
+
+function truncateText(
+	ctx: CanvasRenderingContext2D,
+	text: string,
+	maxWidth: number,
+): string {
+	const ellipsis = '...';
+	const ellipsisWidth = ctx.measureText(ellipsis).width;
+
+	if (ctx.measureText(text).width <= maxWidth) {
+		return text;
+	}
+
+	let lo = 0;
+	let hi = text.length;
+	while (lo < hi) {
+		const mid = Math.ceil((lo + hi) / 2);
+		if (ctx.measureText(text.slice(0, mid)).width + ellipsisWidth <= maxWidth) {
+			lo = mid;
+		} else {
+			hi = mid - 1;
+		}
+	}
+
+	return lo > 0 ? `${text.slice(0, lo)}${ellipsis}` : ellipsis;
+}

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/visualLayout.worker.ts

@@ -0,0 +1,26 @@
+/// <reference lib="webworker" />
+import { computeVisualLayout } from './computeVisualLayout';
+import {
+	LayoutWorkerRequest,
+	LayoutWorkerResponse,
+} from './visualLayoutWorkerTypes';
+
+self.onmessage = (event: MessageEvent<LayoutWorkerRequest>): void => {
+	const { requestId, spans } = event.data;
+	try {
+		const layout = computeVisualLayout(spans);
+		const response: LayoutWorkerResponse = {
+			type: 'result',
+			requestId,
+			layout,
+		};
+		self.postMessage(response);
+	} catch (err) {
+		const response: LayoutWorkerResponse = {
+			type: 'error',
+			requestId,
+			message: String(err),
+		};
+		self.postMessage(response);
+	}
+};

frontend/src/pages/TraceDetailsV3/TraceFlamegraph/visualLayoutWorkerTypes.ts

@@ -0,0 +1,13 @@
+import { FlamegraphSpan } from 'types/api/trace/getTraceFlamegraph';
+
+import { VisualLayout } from './computeVisualLayout';
+
+export interface LayoutWorkerRequest {
+	type: 'compute';
+	requestId: number;
+	spans: FlamegraphSpan[][];
+}
+
+export type LayoutWorkerResponse =
+	| { type: 'result'; requestId: number; layout: VisualLayout }
+	| { type: 'error'; requestId: number; message: string };

frontend/src/pages/TraceDetailsV3/TraceWaterfall/AddSpanToFunnelModal/AddSpanToFunnelModal.styles.scss

@@ -0,0 +1,297 @@
+// Modal base styles
+.add-span-to-funnel-modal {
+	&__loading-spinner {
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		height: 400px;
+	}
+	&-container {
+		.ant-modal {
+			&-content,
+			&-header {
+				background: var(--bg-ink-500);
+			}
+
+			&-header {
+				border-bottom: none;
+
+				.ant-modal-title {
+					color: var(--bg-vanilla-100);
+				}
+			}
+
+			&-body {
+				padding: 14px 16px !important;
+				padding-bottom: 0 !important;
+				border-bottom-left-radius: 0;
+				border-bottom-right-radius: 0;
+			}
+
+			&-footer {
+				margin-top: 0;
+				background: var(--bg-ink-400);
+				border-top: 1px solid var(--bg-slate-500);
+				padding: 16px !important;
+				.add-span-to-funnel-modal {
+					&__save-button {
+						display: flex;
+						align-items: center;
+						justify-content: center;
+						gap: 4px;
+						color: var(--bg-vanilla-100);
+						font-size: 12px;
+						font-weight: 500;
+						line-height: 24px;
+						width: 135px;
+
+						.ant-btn-icon {
+							display: flex;
+						}
+						&:disabled {
+							color: var(--bg-vanilla-400);
+							.ant-btn-icon {
+								svg {
+									stroke: var(--bg-vanilla-400);
+								}
+							}
+						}
+					}
+					&__discard-button {
+						background: var(--bg-slate-500);
+					}
+				}
+				.ant-btn {
+					border-radius: 2px;
+					padding: 4px 8px;
+					margin: 0 !important;
+					border: none;
+					box-shadow: none;
+				}
+			}
+		}
+	}
+}
+
+// Main modal styles
+.add-span-to-funnel-modal {
+	// Common button styles
+	%button-base {
+		display: flex;
+		align-items: center;
+		font-family: Inter;
+	}
+
+	// Details view styles
+	&--details {
+		.traces-funnel-details {
+			height: unset;
+
+			&__steps-config {
+				width: unset;
+				border: none;
+			}
+
+			.funnel-step-wrapper {
+				gap: 15px;
+			}
+
+			.steps-content {
+				max-height: 500px;
+			}
+		}
+	}
+
+	// Search section
+	&__search {
+		display: flex;
+		gap: 12px;
+		margin-bottom: 14px;
+		align-items: center;
+
+		&-input {
+			flex: 1;
+			padding: 6px 8px;
+			background: var(--bg-ink-300);
+
+			.ant-input-prefix {
+				height: 18px;
+				margin-inline-end: 6px;
+				svg {
+					opacity: 0.4;
+				}
+			}
+
+			&,
+			input {
+				font-family: Inter;
+				font-size: 14px;
+				line-height: 18px;
+				letter-spacing: -0.07px;
+				font-weight: 400;
+				background: var(--bg-ink-300);
+			}
+
+			input::placeholder {
+				color: var(--bg-vanilla-400);
+				opacity: 0.4;
+			}
+		}
+	}
+
+	// Create button
+	&__create-button {
+		@extend %button-base;
+		width: 153px;
+		padding: 4px 8px;
+		justify-content: center;
+		gap: 4px;
+		flex-shrink: 0;
+		border-radius: 2px;
+		background: var(--bg-slate-500);
+		border: none;
+		box-shadow: none;
+		color: var(--bg-vanilla-400);
+		font-size: 12px;
+		font-weight: 500;
+		line-height: 24px;
+	}
+	.funnel-item {
+		padding: 8px 8px 12px 16px;
+		&,
+		&:first-child {
+			border-radius: 6px;
+		}
+
+		&__header {
+			line-height: 20px;
+		}
+		&__details {
+			line-height: 18px;
+		}
+	}
+
+	// List section
+	&__list {
+		max-height: 400px;
+		overflow-y: scroll;
+		.funnels-empty {
+			&__content {
+				padding: 0;
+			}
+		}
+
+		.funnels-list {
+			gap: 8px;
+
+			.funnel-item {
+				padding: 8px 16px 12px;
+
+				&__details {
+					margin-top: 8px;
+				}
+			}
+		}
+	}
+
+	&__spinner {
+		height: 400px;
+	}
+
+	// Back button
+	&__back-button {
+		@extend %button-base;
+		gap: 6px;
+		color: var(--bg-vanilla-400);
+		font-size: 14px;
+		line-height: 20px;
+		margin-bottom: 14px;
+	}
+
+	// Details section
+	&__details {
+		display: flex;
+		flex-direction: column;
+		gap: 24px;
+
+		.funnel-configuration__steps {
+			padding: 0;
+
+			.funnel-step {
+				&__content .filters__service-and-span .ant-select {
+					width: 170px;
+				}
+
+				&__footer .error {
+					width: 25%;
+				}
+			}
+
+			.inter-step-config {
+				width: calc(100% - 104px);
+			}
+		}
+		.funnel-item__actions-popover {
+			display: none;
+		}
+	}
+}
+
+// Light mode styles
+.lightMode {
+	.add-span-to-funnel-modal-container {
+		.ant-modal {
+			&-content,
+			&-header {
+				background: var(--bg-vanilla-100);
+			}
+
+			&-title {
+				color: var(--bg-ink-500);
+			}
+
+			&-footer {
+				border-top-color: var(--bg-vanilla-300);
+				background: var(--bg-vanilla-100);
+				.add-span-to-funnel-modal__discard-button {
+					background: var(--bg-vanilla-200);
+					color: var(--bg-ink-500);
+				}
+			}
+		}
+	}
+
+	.add-span-to-funnel-modal {
+		&__search-input {
+			background: var(--bg-vanilla-100);
+			border: 1px solid var(--bg-vanilla-300);
+			color: var(--bg-ink-500);
+
+			input {
+				color: var(--bg-ink-500);
+				background: var(--bg-vanilla-100);
+
+				&::placeholder {
+					color: var(--bg-ink-400);
+				}
+			}
+		}
+
+		&__create-button {
+			background: var(--bg-vanilla-300);
+			color: var(--bg-ink-400);
+		}
+
+		&__back-button {
+			color: var(--bg-ink-500);
+
+			&:hover {
+				color: var(--bg-ink-400);
+			}
+		}
+
+		&__details h3 {
+			color: var(--bg-ink-500);
+		}
+	}
+}

frontend/src/pages/TraceDetailsV3/TraceWaterfall/AddSpanToFunnelModal/AddSpanToFunnelModal.tsx

@@ -0,0 +1,294 @@
+import { ChangeEvent, useEffect, useMemo, useState } from 'react';
+import { LoadingOutlined } from '@ant-design/icons';
+import { Button, Input, Spin } from 'antd';
+import cx from 'classnames';
+import OverlayScrollbar from 'components/OverlayScrollbar/OverlayScrollbar';
+import SignozModal from 'components/SignozModal/SignozModal';
+import {
+	useFunnelDetails,
+	useFunnelsList,
+} from 'hooks/TracesFunnels/useFunnels';
+import { isEqual } from 'lodash-es';
+import { ArrowLeft, Check, Plus, Search } from 'lucide-react';
+import FunnelConfiguration from 'pages/TracesFunnelDetails/components/FunnelConfiguration/FunnelConfiguration';
+import { TracesFunnelsContentRenderer } from 'pages/TracesFunnels';
+import CreateFunnel from 'pages/TracesFunnels/components/CreateFunnel/CreateFunnel';
+import { FunnelListItem } from 'pages/TracesFunnels/components/FunnelsList/FunnelsList';
+import {
+	FunnelProvider,
+	useFunnelContext,
+} from 'pages/TracesFunnels/FunnelContext';
+import { filterFunnelsByQuery } from 'pages/TracesFunnels/utils';
+import { Span } from 'types/api/trace/getTraceV2';
+import { FunnelData } from 'types/api/traceFunnels';
+
+import './AddSpanToFunnelModal.styles.scss';
+
+enum ModalView {
+	LIST = 'list',
+	DETAILS = 'details',
+}
+
+function FunnelDetailsView({
+	funnel,
+	span,
+	triggerAutoSave,
+	showNotifications,
+	onChangesDetected,
+	triggerDiscard,
+}: {
+	funnel: FunnelData;
+	span: Span;
+	triggerAutoSave: boolean;
+	showNotifications: boolean;
+	onChangesDetected: (hasChanges: boolean) => void;
+	triggerDiscard: boolean;
+}): JSX.Element {
+	const { handleRestoreSteps, steps } = useFunnelContext();
+
+	// Track changes between current steps and original steps
+	useEffect(() => {
+		const hasChanges = !isEqual(steps, funnel.steps);
+		if (onChangesDetected) {
+			onChangesDetected(hasChanges);
+		}
+	}, [steps, funnel.steps, onChangesDetected]);
+
+	// Handle discard when triggered from parent
+	useEffect(() => {
+		if (triggerDiscard && funnel.steps) {
+			handleRestoreSteps(funnel.steps);
+		}
+	}, [triggerDiscard, funnel.steps, handleRestoreSteps]);
+
+	return (
+		<div className="add-span-to-funnel-modal__details">
+			<FunnelListItem
+				funnel={funnel}
+				shouldRedirectToTracesListOnDeleteSuccess={false}
+				isSpanDetailsPage
+			/>
+			<FunnelConfiguration
+				funnel={funnel}
+				isTraceDetailsPage
+				span={span}
+				triggerAutoSave={triggerAutoSave}
+				showNotifications={showNotifications}
+			/>
+		</div>
+	);
+}
+
+interface AddSpanToFunnelModalProps {
+	isOpen: boolean;
+	onClose: () => void;
+	span: Span;
+}
+
+function AddSpanToFunnelModal({
+	isOpen,
+	onClose,
+	span,
+}: AddSpanToFunnelModalProps): JSX.Element {
+	const [activeView, setActiveView] = useState<ModalView>(ModalView.LIST);
+	const [searchQuery, setSearchQuery] = useState<string>('');
+	const [selectedFunnelId, setSelectedFunnelId] = useState<string | undefined>(
+		undefined,
+	);
+	const [isCreateModalOpen, setIsCreateModalOpen] = useState<boolean>(false);
+	const [triggerSave, setTriggerSave] = useState<boolean>(false);
+	const [isUnsavedChanges, setIsUnsavedChanges] = useState<boolean>(false);
+	const [triggerDiscard, setTriggerDiscard] = useState<boolean>(false);
+	const [isCreatedFromSpan, setIsCreatedFromSpan] = useState<boolean>(false);
+
+	const handleSearch = (e: ChangeEvent<HTMLInputElement>): void => {
+		setSearchQuery(e.target.value);
+	};
+
+	const { data, isLoading, isError, isFetching } = useFunnelsList();
+
+	const filteredData = useMemo(
+		() =>
+			filterFunnelsByQuery(data?.payload || [], searchQuery).sort(
+				(a, b) =>
+					new Date(b.created_at).getTime() - new Date(a.created_at).getTime(),
+			),
+		[data?.payload, searchQuery],
+	);
+
+	const {
+		data: funnelDetails,
+		isLoading: isFunnelDetailsLoading,
+		isFetching: isFunnelDetailsFetching,
+	} = useFunnelDetails({
+		funnelId: selectedFunnelId,
+	});
+
+	const handleFunnelClick = (funnel: FunnelData): void => {
+		setSelectedFunnelId(funnel.funnel_id);
+		setActiveView(ModalView.DETAILS);
+		setIsCreatedFromSpan(false);
+	};
+
+	const handleBack = (): void => {
+		setActiveView(ModalView.LIST);
+		setSelectedFunnelId(undefined);
+		setIsUnsavedChanges(false);
+		setTriggerSave(false);
+		setIsCreatedFromSpan(false);
+	};
+
+	const handleCreateNewClick = (): void => {
+		setIsCreateModalOpen(true);
+	};
+
+	const handleSaveFunnel = (): void => {
+		setTriggerSave(true);
+		// Reset trigger after a brief moment to allow the save to be processed
+		setTimeout(() => {
+			setTriggerSave(false);
+			onClose();
+		}, 100);
+	};
+
+	const handleDiscard = (): void => {
+		setTriggerDiscard(true);
+		// Reset trigger after a brief moment
+		setTimeout(() => {
+			setTriggerDiscard(false);
+			onClose();
+		}, 100);
+	};
+
+	const renderListView = (): JSX.Element => (
+		<div className="add-span-to-funnel-modal">
+			{!!filteredData?.length && (
+				<div className="add-span-to-funnel-modal__search">
+					<Input
+						className="add-span-to-funnel-modal__search-input"
+						placeholder="Search by name, description, or tags..."
+						prefix={<Search size={12} />}
+						value={searchQuery}
+						onChange={handleSearch}
+					/>
+				</div>
+			)}
+			<div className="add-span-to-funnel-modal__list">
+				<OverlayScrollbar>
+					<TracesFunnelsContentRenderer
+						isError={isError}
+						isLoading={isLoading || isFetching}
+						data={filteredData || []}
+						onCreateFunnel={handleCreateNewClick}
+						onFunnelClick={(funnel: FunnelData): void => handleFunnelClick(funnel)}
+						shouldRedirectToTracesListOnDeleteSuccess={false}
+					/>
+				</OverlayScrollbar>
+			</div>
+			<CreateFunnel
+				isOpen={isCreateModalOpen}
+				onClose={(funnelId): void => {
+					if (funnelId) {
+						setSelectedFunnelId(funnelId);
+						setActiveView(ModalView.DETAILS);
+						setIsCreatedFromSpan(true);
+					}
+					setIsCreateModalOpen(false);
+				}}
+				redirectToDetails={false}
+			/>
+		</div>
+	);
+
+	const renderDetailsView = ({ span }: { span: Span }): JSX.Element => (
+		<div className="add-span-to-funnel-modal add-span-to-funnel-modal--details">
+			<Button
+				type="text"
+				className="add-span-to-funnel-modal__back-button"
+				onClick={handleBack}
+			>
+				<ArrowLeft size={14} />
+				All funnels
+			</Button>
+			<div className="traces-funnel-details">
+				<div className="traces-funnel-details__steps-config">
+					<Spin
+						className="add-span-to-funnel-modal__loading-spinner"
+						spinning={isFunnelDetailsLoading || isFunnelDetailsFetching}
+						indicator={<LoadingOutlined spin />}
+					>
+						{selectedFunnelId && funnelDetails?.payload && (
+							<FunnelProvider
+								funnelId={selectedFunnelId}
+								hasSingleStep={isCreatedFromSpan}
+							>
+								<FunnelDetailsView
+									funnel={funnelDetails.payload}
+									span={span}
+									triggerAutoSave={triggerSave}
+									showNotifications
+									onChangesDetected={setIsUnsavedChanges}
+									triggerDiscard={triggerDiscard}
+								/>
+							</FunnelProvider>
+						)}
+					</Spin>
+				</div>
+			</div>
+		</div>
+	);
+
+	return (
+		<SignozModal
+			open={isOpen}
+			onCancel={onClose}
+			width={570}
+			title="Add span to funnel"
+			className={cx('add-span-to-funnel-modal-container', {
+				'add-span-to-funnel-modal-container--details':
+					activeView === ModalView.DETAILS,
+			})}
+			footer={
+				activeView === ModalView.DETAILS
+					? [
+							<Button
+								type="default"
+								key="discard"
+								onClick={handleDiscard}
+								className="add-span-to-funnel-modal__discard-button"
+								disabled={!isUnsavedChanges}
+							>
+								Discard
+							</Button>,
+							<Button
+								key="save"
+								type="primary"
+								className="add-span-to-funnel-modal__save-button"
+								onClick={handleSaveFunnel}
+								disabled={!isUnsavedChanges}
+								icon={<Check size={14} color="var(--bg-vanilla-100)" />}
+							>
+								Save Funnel
+							</Button>,
+					  ]
+					: [
+							<Button
+								key="create"
+								type="default"
+								className="add-span-to-funnel-modal__create-button"
+								onClick={handleCreateNewClick}
+								icon={<Plus size={14} />}
+							>
+								Create new funnel
+							</Button>,
+					  ]
+			}
+		>
+			{activeView === ModalView.LIST
+				? renderListView()
+				: renderDetailsView({ span })}
+		</SignozModal>
+	);
+}
+
+export default AddSpanToFunnelModal;

frontend/src/pages/TraceDetailsV3/TraceWaterfall/SpanLineActionButtons/SpanLineActionButtons.styles.scss

@@ -0,0 +1,39 @@
+.span-line-action-buttons {
+	display: flex;
+	position: absolute;
+	transform: translate(-50%, -50%);
+	top: 50%;
+	right: 0;
+	cursor: pointer;
+	border-radius: 2px;
+	border: 1px solid var(--bg-slate-400);
+	background: var(--bg-ink-400);
+
+	.ant-btn-default {
+		border: none;
+		box-shadow: none;
+		padding: 9px;
+		justify-content: center;
+		align-items: center;
+		display: flex;
+
+		&.active-tab {
+			background-color: var(--bg-slate-400);
+		}
+	}
+
+	.copy-span-btn {
+		border-color: var(--bg-slate-400) !important;
+	}
+}
+
+.lightMode {
+	.span-line-action-buttons {
+		border: 1px solid var(--bg-vanilla-400);
+		background: var(--bg-vanilla-400);
+
+		.copy-span-btn {
+			border-color: var(--bg-vanilla-400) !important;
+		}
+	}
+}

frontend/src/pages/TraceDetailsV3/TraceWaterfall/SpanLineActionButtons/__tests__/SpanLineActionButtons.test.tsx

@@ -0,0 +1,134 @@
+import { fireEvent, screen } from '@testing-library/react';
+import { useCopySpanLink } from 'hooks/trace/useCopySpanLink';
+import { render } from 'tests/test-utils';
+import { Span } from 'types/api/trace/getTraceV2';
+
+import SpanLineActionButtons from '../index';
+
+// Mock the useCopySpanLink hook
+jest.mock('hooks/trace/useCopySpanLink');
+
+const mockSpan: Span = {
+	spanId: 'test-span-id',
+	name: 'test-span',
+	serviceName: 'test-service',
+	durationNano: 1000,
+	timestamp: 1234567890,
+	rootSpanId: 'test-root-span-id',
+	parentSpanId: 'test-parent-span-id',
+	traceId: 'test-trace-id',
+	hasError: false,
+	kind: 0,
+	references: [],
+	tagMap: {},
+	event: [],
+	rootName: 'test-root-name',
+	statusMessage: 'test-status-message',
+	statusCodeString: 'test-status-code-string',
+	spanKind: 'test-span-kind',
+	hasChildren: false,
+	hasSibling: false,
+	subTreeNodeCount: 0,
+	level: 0,
+};
+
+describe('SpanLineActionButtons', () => {
+	beforeEach(() => {
+		// Clear mock before each test
+		jest.clearAllMocks();
+	});
+
+	it('renders copy link button with correct icon', () => {
+		(useCopySpanLink as jest.Mock).mockReturnValue({
+			onSpanCopy: jest.fn(),
+		});
+
+		render(<SpanLineActionButtons span={mockSpan} />);
+
+		// Check if the button is rendered
+		const copyButton = screen.getByRole('button');
+		expect(copyButton).toBeInTheDocument();
+
+		// Check if the link icon is rendered
+		const linkIcon = screen.getByRole('img', { hidden: true });
+		expect(linkIcon).toHaveClass('anticon anticon-link');
+	});
+
+	it('calls onSpanCopy when copy button is clicked', () => {
+		const mockOnSpanCopy = jest.fn();
+		(useCopySpanLink as jest.Mock).mockReturnValue({
+			onSpanCopy: mockOnSpanCopy,
+		});
+
+		render(<SpanLineActionButtons span={mockSpan} />);
+
+		// Click the copy button
+		const copyButton = screen.getByRole('button');
+		fireEvent.click(copyButton);
+
+		// Verify the copy function was called
+		expect(mockOnSpanCopy).toHaveBeenCalledTimes(1);
+	});
+
+	it('applies correct styling classes', () => {
+		(useCopySpanLink as jest.Mock).mockReturnValue({
+			onSpanCopy: jest.fn(),
+		});
+
+		render(<SpanLineActionButtons span={mockSpan} />);
+
+		// Check if the main container has the correct class
+		const container = screen
+			.getByRole('button')
+			.closest('.span-line-action-buttons');
+		expect(container).toHaveClass('span-line-action-buttons');
+
+		// Check if the button has the correct class
+		const copyButton = screen.getByRole('button');
+		expect(copyButton).toHaveClass('copy-span-btn');
+	});
+
+	it('copies span link to clipboard when copy button is clicked', () => {
+		const mockSetCopy = jest.fn();
+		const mockUrlQuery = {
+			delete: jest.fn(),
+			set: jest.fn(),
+			toString: jest.fn().mockReturnValue('spanId=test-span-id'),
+		};
+		const mockPathname = '/test-path';
+		const mockLocation = {
+			origin: 'http://localhost:3000',
+		};
+
+		// Mock window.location
+		Object.defineProperty(window, 'location', {
+			value: mockLocation,
+			writable: true,
+		});
+
+		// Mock useCopySpanLink hook
+		(useCopySpanLink as jest.Mock).mockReturnValue({
+			onSpanCopy: (event: React.MouseEvent) => {
+				event.preventDefault();
+				event.stopPropagation();
+				mockUrlQuery.delete('spanId');
+				mockUrlQuery.set('spanId', mockSpan.spanId);
+				const link = `${
+					window.location.origin
+				}${mockPathname}?${mockUrlQuery.toString()}`;
+				mockSetCopy(link);
+			},
+		});
+
+		render(<SpanLineActionButtons span={mockSpan} />);
+
+		// Click the copy button
+		const copyButton = screen.getByRole('button');
+		fireEvent.click(copyButton);
+
+		// Verify the copy function was called with correct link
+		expect(mockSetCopy).toHaveBeenCalledWith(
+			'http://localhost:3000/test-path?spanId=test-span-id',
+		);
+	});
+});

frontend/src/pages/TraceDetailsV3/TraceWaterfall/SpanLineActionButtons/index.tsx

@@ -0,0 +1,28 @@
+import { LinkOutlined } from '@ant-design/icons';
+import { Button, Tooltip } from 'antd';
+import { useCopySpanLink } from 'hooks/trace/useCopySpanLink';
+import { Span } from 'types/api/trace/getTraceV2';
+
+import './SpanLineActionButtons.styles.scss';
+
+export interface SpanLineActionButtonsProps {
+	span: Span;
+}
+export default function SpanLineActionButtons({
+	span,
+}: SpanLineActionButtonsProps): JSX.Element {
+	const { onSpanCopy } = useCopySpanLink(span);
+
+	return (
+		<div className="span-line-action-buttons">
+			<Tooltip title="Copy Span Link">
+				<Button
+					size="small"
+					icon={<LinkOutlined size={14} />}
+					onClick={onSpanCopy}
+					className="copy-span-btn"
+				/>
+			</Tooltip>
+		</div>
+	);
+}

frontend/src/pages/TraceDetailsV3/TraceWaterfall/TraceWaterfall.styles.scss

@@ -0,0 +1,9 @@
+.trace-waterfall {
+	height: calc(70vh - 236px);
+
+	.loading-skeleton {
+		justify-content: center;
+		align-items: center;
+		padding: 20px;
+	}
+}

frontend/src/pages/TraceDetailsV3/TraceWaterfall/TraceWaterfall.tsx

@@ -0,0 +1,144 @@
+import { Dispatch, SetStateAction, useMemo } from 'react';
+import { Skeleton } from 'antd';
+import { AxiosError } from 'axios';
+import Spinner from 'components/Spinner';
+import { ErrorResponse, SuccessResponse } from 'types/api';
+import { GetTraceV2SuccessResponse, Span } from 'types/api/trace/getTraceV2';
+
+import { TraceWaterfallStates } from './constants';
+import Error from './TraceWaterfallStates/Error/Error';
+import NoData from './TraceWaterfallStates/NoData/NoData';
+import Success from './TraceWaterfallStates/Success/Success';
+
+import './TraceWaterfall.styles.scss';
+
+export interface IInterestedSpan {
+	spanId: string;
+	isUncollapsed: boolean;
+}
+
+interface ITraceWaterfallProps {
+	traceId: string;
+	uncollapsedNodes: string[];
+	traceData:
+		| SuccessResponse<GetTraceV2SuccessResponse, unknown>
+		| ErrorResponse
+		| undefined;
+	isFetchingTraceData: boolean;
+	errorFetchingTraceData: unknown;
+	interestedSpanId: IInterestedSpan;
+	setInterestedSpanId: Dispatch<SetStateAction<IInterestedSpan>>;
+	setTraceFlamegraphStatsWidth: Dispatch<SetStateAction<number>>;
+	selectedSpan: Span | undefined;
+	setSelectedSpan: Dispatch<SetStateAction<Span | undefined>>;
+	hoveredSpanId: string | null;
+	setHoveredSpanId: Dispatch<SetStateAction<string | null>>;
+}
+
+function TraceWaterfall(props: ITraceWaterfallProps): JSX.Element {
+	const {
+		traceData,
+		isFetchingTraceData,
+		errorFetchingTraceData,
+		interestedSpanId,
+		traceId,
+		uncollapsedNodes,
+		setInterestedSpanId,
+		setTraceFlamegraphStatsWidth,
+		setSelectedSpan,
+		selectedSpan,
+		hoveredSpanId,
+		setHoveredSpanId,
+	} = props;
+	// get the current state of trace waterfall based on the API lifecycle
+	const traceWaterfallState = useMemo(() => {
+		if (isFetchingTraceData) {
+			if (
+				traceData &&
+				traceData.payload &&
+				traceData.payload.spans &&
+				traceData.payload.spans.length > 0
+			) {
+				return TraceWaterfallStates.FETCHING_WITH_OLD_DATA_PRESENT;
+			}
+			return TraceWaterfallStates.LOADING;
+		}
+		if (errorFetchingTraceData) {
+			return TraceWaterfallStates.ERROR;
+		}
+		if (
+			traceData &&
+			traceData.payload &&
+			traceData.payload.spans &&
+			traceData.payload.spans.length === 0
+		) {
+			return TraceWaterfallStates.NO_DATA;
+		}
+
+		return TraceWaterfallStates.SUCCESS;
+	}, [errorFetchingTraceData, isFetchingTraceData, traceData]);
+
+	// capture the spans from the response, since we do not need to do any manipulation on the same we will keep this as a simple constant [ memoized ]
+	const spans = useMemo(() => traceData?.payload?.spans || [], [
+		traceData?.payload?.spans,
+	]);
+
+	// get the content based on the current state of the trace waterfall
+	const getContent = useMemo(() => {
+		switch (traceWaterfallState) {
+			case TraceWaterfallStates.LOADING:
+				return (
+					<div className="loading-skeleton">
+						<Skeleton active paragraph={{ rows: 6 }} />
+					</div>
+				);
+			case TraceWaterfallStates.ERROR:
+				return <Error error={errorFetchingTraceData as AxiosError} />;
+			case TraceWaterfallStates.NO_DATA:
+				return <NoData id={traceId} />;
+			case TraceWaterfallStates.SUCCESS:
+			case TraceWaterfallStates.FETCHING_WITH_OLD_DATA_PRESENT:
+				return (
+					<Success
+						spans={spans}
+						traceMetadata={{
+							traceId,
+							startTime: traceData?.payload?.startTimestampMillis || 0,
+							endTime: traceData?.payload?.endTimestampMillis || 0,
+							hasMissingSpans: traceData?.payload?.hasMissingSpans || false,
+						}}
+						interestedSpanId={interestedSpanId || ''}
+						uncollapsedNodes={uncollapsedNodes}
+						setInterestedSpanId={setInterestedSpanId}
+						setTraceFlamegraphStatsWidth={setTraceFlamegraphStatsWidth}
+						selectedSpan={selectedSpan}
+						setSelectedSpan={setSelectedSpan}
+						hoveredSpanId={hoveredSpanId}
+						setHoveredSpanId={setHoveredSpanId}
+					/>
+				);
+			default:
+				return <Spinner tip="Fetching the trace!" />;
+		}
+	}, [
+		errorFetchingTraceData,
+		interestedSpanId,
+		selectedSpan,
+		setInterestedSpanId,
+		setSelectedSpan,
+		setTraceFlamegraphStatsWidth,
+		spans,
+		traceData?.payload?.endTimestampMillis,
+		traceData?.payload?.hasMissingSpans,
+		traceData?.payload?.startTimestampMillis,
+		traceId,
+		traceWaterfallState,
+		uncollapsedNodes,
+		hoveredSpanId,
+		setHoveredSpanId,
+	]);
+
+	return <div className="trace-waterfall">{getContent}</div>;
+}
+
+export default TraceWaterfall;

frontend/src/pages/TraceDetailsV3/TraceWaterfall/TraceWaterfallStates/Error/Error.styles.scss

@@ -0,0 +1,30 @@
+.error-waterfall {
+	display: flex;
+	padding: 12px;
+	margin: 20px;
+	gap: 12px;
+	align-items: flex-start;
+	border-radius: 4px;
+	background: var(--bg-cherry-500);
+
+	.text {
+		color: var(--bg-vanilla-100);
+		font-family: Inter;
+		font-size: 14px;
+		font-style: normal;
+		font-weight: 400;
+		line-height: 20px; /* 142.857% */
+		letter-spacing: -0.07px;
+		flex-shrink: 0;
+	}
+
+	.value {
+		color: var(--bg-vanilla-100);
+		font-family: Inter;
+		font-size: 14px;
+		font-style: normal;
+		font-weight: 400;
+		line-height: 20px; /* 142.857% */
+		letter-spacing: -0.07px;
+	}
+}

frontend/src/pages/TraceDetailsV3/TraceWaterfall/TraceWaterfallStates/Error/Error.tsx

@@ -0,0 +1,25 @@
+import { Tooltip, Typography } from 'antd';
+import { AxiosError } from 'axios';
+
+import './Error.styles.scss';
+
+interface IErrorProps {
+	error: AxiosError;
+}
+
+function Error(props: IErrorProps): JSX.Element {
+	const { error } = props;
+
+	return (
+		<div className="error-waterfall">
+			<Typography.Text className="text">Something went wrong!</Typography.Text>
+			<Tooltip title={error?.message}>
+				<Typography.Text className="value" ellipsis>
+					{error?.message}
+				</Typography.Text>
+			</Tooltip>
+		</div>
+	);
+}
+
+export default Error;