chore: added frontend changes for properly displaying a - when host name not exists

conf/example.yaml

@@ -285,6 +285,7 @@ flagger:
   config:
     boolean:
       use_span_metrics: true
+      interpolation_enabled: false
       kafka_span_eval: false
     string:
     float:

frontend/__mocks__/uplotMock.ts

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

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

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

frontend/src/api/dynamicVariables/getFieldValues.ts

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

frontend/src/components/NewSelect/CustomMultiSelect.tsx

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

frontend/src/components/NewSelect/CustomSelect.tsx

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

frontend/src/components/NewSelect/types.ts

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

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

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

frontend/src/container/DashboardContainer/visualization/panels/types.ts

@@ -14,11 +14,6 @@ export interface GraphVisibilityState {
 	dataIndex: SeriesVisibilityItem[];
 }
 
-export interface SeriesVisibilityState {
-	labels: string[];
-	visibility: boolean[];
-}
-
 /**
  * Context in which a panel is rendered. Used to vary behavior (e.g. persistence,
  * interactions) per context.

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

@@ -1,271 +0,0 @@
-import { LOCALSTORAGE } from 'constants/localStorage';
-
-import type { GraphVisibilityState } from '../../types';
-import {
-	getStoredSeriesVisibility,
-	updateSeriesVisibilityToLocalStorage,
-} from '../legendVisibilityUtils';
-
-describe('legendVisibilityUtils', () => {
-	const storageKey = LOCALSTORAGE.GRAPH_VISIBILITY_STATES;
-
-	beforeEach(() => {
-		localStorage.clear();
-		jest.spyOn(window.localStorage.__proto__, 'getItem');
-		jest.spyOn(window.localStorage.__proto__, 'setItem');
-	});
-
-	afterEach(() => {
-		jest.restoreAllMocks();
-	});
-
-	describe('getStoredSeriesVisibility', () => {
-		it('returns null when there is no stored visibility state', () => {
-			const result = getStoredSeriesVisibility('widget-1');
-
-			expect(result).toBeNull();
-			expect(localStorage.getItem).toHaveBeenCalledWith(storageKey);
-		});
-
-		it('returns null when widget has no stored dataIndex', () => {
-			const stored: GraphVisibilityState[] = [
-				{
-					name: 'widget-1',
-					dataIndex: [],
-				},
-			];
-
-			localStorage.setItem(storageKey, JSON.stringify(stored));
-
-			const result = getStoredSeriesVisibility('widget-1');
-
-			expect(result).toBeNull();
-		});
-
-		it('returns visibility array by index when widget state exists', () => {
-			const stored: GraphVisibilityState[] = [
-				{
-					name: 'widget-1',
-					dataIndex: [
-						{ label: 'CPU', show: true },
-						{ label: 'Memory', show: false },
-					],
-				},
-				{
-					name: 'widget-2',
-					dataIndex: [{ label: 'Errors', show: true }],
-				},
-			];
-
-			localStorage.setItem(storageKey, JSON.stringify(stored));
-
-			const result = getStoredSeriesVisibility('widget-1');
-
-			expect(result).not.toBeNull();
-			expect(result).toEqual({
-				labels: ['CPU', 'Memory'],
-				visibility: [true, false],
-			});
-		});
-
-		it('returns visibility by index including duplicate labels', () => {
-			const stored: GraphVisibilityState[] = [
-				{
-					name: 'widget-1',
-					dataIndex: [
-						{ label: 'CPU', show: true },
-						{ label: 'CPU', show: false },
-						{ label: 'Memory', show: false },
-					],
-				},
-			];
-
-			localStorage.setItem(storageKey, JSON.stringify(stored));
-
-			const result = getStoredSeriesVisibility('widget-1');
-
-			expect(result).not.toBeNull();
-			expect(result).toEqual({
-				labels: ['CPU', 'CPU', 'Memory'],
-				visibility: [true, false, false],
-			});
-		});
-
-		it('returns null on malformed JSON in localStorage', () => {
-			localStorage.setItem(storageKey, '{invalid-json');
-
-			const result = getStoredSeriesVisibility('widget-1');
-
-			expect(result).toBeNull();
-		});
-
-		it('returns null when widget id is not found', () => {
-			const stored: GraphVisibilityState[] = [
-				{
-					name: 'another-widget',
-					dataIndex: [{ label: 'CPU', show: true }],
-				},
-			];
-
-			localStorage.setItem(storageKey, JSON.stringify(stored));
-
-			const result = getStoredSeriesVisibility('widget-1');
-
-			expect(result).toBeNull();
-		});
-	});
-
-	describe('updateSeriesVisibilityToLocalStorage', () => {
-		it('creates new visibility state when none exists', () => {
-			const seriesVisibility = [
-				{ label: 'CPU', show: true },
-				{ label: 'Memory', show: false },
-			];
-
-			updateSeriesVisibilityToLocalStorage('widget-1', seriesVisibility);
-
-			const stored = getStoredSeriesVisibility('widget-1');
-
-			expect(stored).not.toBeNull();
-			expect(stored).toEqual({
-				labels: ['CPU', 'Memory'],
-				visibility: [true, false],
-			});
-		});
-
-		it('adds a new widget entry when other widgets already exist', () => {
-			const existing: GraphVisibilityState[] = [
-				{
-					name: 'widget-existing',
-					dataIndex: [{ label: 'Errors', show: true }],
-				},
-			];
-			localStorage.setItem(storageKey, JSON.stringify(existing));
-
-			const newVisibility = [{ label: 'CPU', show: false }];
-
-			updateSeriesVisibilityToLocalStorage('widget-new', newVisibility);
-
-			const stored = getStoredSeriesVisibility('widget-new');
-
-			expect(stored).not.toBeNull();
-			expect(stored).toEqual({ labels: ['CPU'], visibility: [false] });
-		});
-
-		it('updates existing widget visibility when entry already exists', () => {
-			const initialVisibility: GraphVisibilityState[] = [
-				{
-					name: 'widget-1',
-					dataIndex: [
-						{ label: 'CPU', show: true },
-						{ label: 'Memory', show: true },
-					],
-				},
-			];
-
-			localStorage.setItem(storageKey, JSON.stringify(initialVisibility));
-
-			const updatedVisibility = [
-				{ label: 'CPU', show: false },
-				{ label: 'Memory', show: true },
-			];
-
-			updateSeriesVisibilityToLocalStorage('widget-1', updatedVisibility);
-
-			const stored = getStoredSeriesVisibility('widget-1');
-
-			expect(stored).not.toBeNull();
-			expect(stored).toEqual({
-				labels: ['CPU', 'Memory'],
-				visibility: [false, true],
-			});
-		});
-
-		it('silently handles malformed existing JSON without throwing', () => {
-			localStorage.setItem(storageKey, '{invalid-json');
-
-			expect(() =>
-				updateSeriesVisibilityToLocalStorage('widget-1', [
-					{ label: 'CPU', show: true },
-				]),
-			).not.toThrow();
-		});
-
-		it('when existing JSON is malformed, overwrites with valid data for the widget', () => {
-			localStorage.setItem(storageKey, '{invalid-json');
-
-			updateSeriesVisibilityToLocalStorage('widget-1', [
-				{ label: 'x-axis', show: true },
-				{ label: 'CPU', show: false },
-			]);
-
-			const stored = getStoredSeriesVisibility('widget-1');
-			expect(stored).not.toBeNull();
-			expect(stored).toEqual({
-				labels: ['x-axis', 'CPU'],
-				visibility: [true, false],
-			});
-			const expected = [
-				{
-					name: 'widget-1',
-					dataIndex: [
-						{ label: 'x-axis', show: true },
-						{ label: 'CPU', show: false },
-					],
-				},
-			];
-			expect(localStorage.setItem).toHaveBeenCalledWith(
-				storageKey,
-				JSON.stringify(expected),
-			);
-		});
-
-		it('preserves other widgets when updating one widget', () => {
-			const existing: GraphVisibilityState[] = [
-				{ name: 'widget-a', dataIndex: [{ label: 'A', show: true }] },
-				{ name: 'widget-b', dataIndex: [{ label: 'B', show: false }] },
-			];
-			localStorage.setItem(storageKey, JSON.stringify(existing));
-
-			updateSeriesVisibilityToLocalStorage('widget-b', [
-				{ label: 'B', show: true },
-			]);
-
-			expect(getStoredSeriesVisibility('widget-a')).toEqual({
-				labels: ['A'],
-				visibility: [true],
-			});
-			expect(getStoredSeriesVisibility('widget-b')).toEqual({
-				labels: ['B'],
-				visibility: [true],
-			});
-		});
-
-		it('calls setItem with storage key and stringified visibility states', () => {
-			updateSeriesVisibilityToLocalStorage('widget-1', [
-				{ label: 'CPU', show: true },
-			]);
-
-			expect(localStorage.setItem).toHaveBeenCalledTimes(1);
-			expect(localStorage.setItem).toHaveBeenCalledWith(
-				storageKey,
-				expect.any(String),
-			);
-			const [_, value] = (localStorage.setItem as jest.Mock).mock.calls[0];
-			expect((): void => JSON.parse(value)).not.toThrow();
-			expect(JSON.parse(value)).toEqual([
-				{ name: 'widget-1', dataIndex: [{ label: 'CPU', show: true }] },
-			]);
-		});
-
-		it('stores empty dataIndex when seriesVisibility is empty', () => {
-			updateSeriesVisibilityToLocalStorage('widget-1', []);
-
-			const raw = localStorage.getItem(storageKey);
-			expect(raw).not.toBeNull();
-			const parsed = JSON.parse(raw ?? '[]');
-			expect(parsed).toEqual([{ name: 'widget-1', dataIndex: [] }]);
-			expect(getStoredSeriesVisibility('widget-1')).toBeNull();
-		});
-	});
-});

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

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

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

@@ -1,20 +1,15 @@
 import { LOCALSTORAGE } from 'constants/localStorage';
 
-import {
-	GraphVisibilityState,
-	SeriesVisibilityItem,
-	SeriesVisibilityState,
-} from '../types';
+import { GraphVisibilityState, SeriesVisibilityItem } from '../types';
 
 /**
- * Retrieves the stored series visibility for a specific widget from localStorage by index.
- * Index 0 is the x-axis (time); indices 1, 2, ... are data series (same order as uPlot plot.series).
+ * Retrieves the visibility map for a specific widget from localStorage
  * @param widgetId - The unique identifier of the widget
- * @returns visibility[i] = show state for series at index i, or null if not found
+ * @returns A Map of series labels to their visibility state, or null if not found
  */
 export function getStoredSeriesVisibility(
 	widgetId: string,
-): SeriesVisibilityState | null {
+): Map<string, boolean> | null {
 	try {
 		const storedData = localStorage.getItem(LOCALSTORAGE.GRAPH_VISIBILITY_STATES);
 
@@ -29,15 +24,8 @@ export function getStoredSeriesVisibility(
 			return null;
 		}
 
-		return {
-			labels: widgetState.dataIndex.map((item) => item.label),
-			visibility: widgetState.dataIndex.map((item) => item.show),
-		};
-	} catch (error) {
-		if (error instanceof SyntaxError) {
-			// If the stored data is malformed, remove it
-			localStorage.removeItem(LOCALSTORAGE.GRAPH_VISIBILITY_STATES);
-		}
+		return new Map(widgetState.dataIndex.map((item) => [item.label, item.show]));
+	} catch {
 		// Silently handle parsing errors - fall back to default visibility
 		return null;
 	}
@@ -47,31 +35,40 @@ export function updateSeriesVisibilityToLocalStorage(
 	widgetId: string,
 	seriesVisibility: SeriesVisibilityItem[],
 ): void {
-	let visibilityStates: GraphVisibilityState[] = [];
 	try {
 		const storedData = localStorage.getItem(LOCALSTORAGE.GRAPH_VISIBILITY_STATES);
-		visibilityStates = JSON.parse(storedData || '[]');
-	} catch (error) {
-		if (error instanceof SyntaxError) {
-			visibilityStates = [];
+
+		let visibilityStates: GraphVisibilityState[];
+
+		if (!storedData) {
+			visibilityStates = [
+				{
+					name: widgetId,
+					dataIndex: seriesVisibility,
+				},
+			];
+		} else {
+			visibilityStates = JSON.parse(storedData);
 		}
-	}
-	const widgetState = visibilityStates.find((state) => state.name === widgetId);
+		const widgetState = visibilityStates.find((state) => state.name === widgetId);
 
-	if (widgetState) {
-		widgetState.dataIndex = seriesVisibility;
-	} else {
-		visibilityStates = [
-			...visibilityStates,
-			{
-				name: widgetId,
-				dataIndex: seriesVisibility,
-			},
-		];
-	}
+		if (!widgetState) {
+			visibilityStates = [
+				...visibilityStates,
+				{
+					name: widgetId,
+					dataIndex: seriesVisibility,
+				},
+			];
+		} else {
+			widgetState.dataIndex = seriesVisibility;
+		}
 
-	localStorage.setItem(
-		LOCALSTORAGE.GRAPH_VISIBILITY_STATES,
-		JSON.stringify(visibilityStates),
-	);
+		localStorage.setItem(
+			LOCALSTORAGE.GRAPH_VISIBILITY_STATES,
+			JSON.stringify(visibilityStates),
+		);
+	} catch {
+		// Silently handle parsing errors - fall back to default visibility
+	}
 }

frontend/src/container/InfraMonitoringHosts/HostsListTable.tsx

@@ -178,7 +178,9 @@ export default function HostsListTable({
 				indicator: <Spin indicator={<LoadingOutlined size={14} spin />} />,
 			}}
 			tableLayout="fixed"
-			rowKey={(record): string => record.hostName}
+			rowKey={(record): string =>
+				(record as HostRowData & { key: string }).key ?? record.hostName
+			}
 			onChange={handleTableChange}
 			onRow={(record): { onClick: () => void; className: string } => ({
 				onClick: (): void => handleRowClick(record),

frontend/src/container/InfraMonitoringHosts/InfraMonitoring.styles.scss

@@ -126,7 +126,8 @@
 				background: var(--bg-ink-500);
 			}
 
-			.ant-table-cell:has(.hostname-column-value) {
+			.ant-table-cell:has(.hostname-column-value),
+			.ant-table-cell:has(.hostname-cell-missing) {
 				background: var(--bg-ink-400);
 			}
 
@@ -139,6 +140,23 @@
 				letter-spacing: -0.07px;
 			}
 
+			.hostname-cell-missing {
+				display: flex;
+				align-items: center;
+				gap: 4px;
+			}
+
+			.hostname-cell-placeholder {
+				color: var(--Vanilla-400, #c0c1c3);
+			}
+
+			.hostname-cell-warning-icon {
+				display: inline-flex;
+				align-items: center;
+				margin-left: 4px;
+				cursor: help;
+			}
+
 			.status-cell {
 				.active-tag {
 					color: var(--bg-forest-500);
@@ -357,7 +375,8 @@
 				color: var(--bg-ink-500);
 			}
 
-			.ant-table-cell:has(.hostname-column-value) {
+			.ant-table-cell:has(.hostname-column-value),
+			.ant-table-cell:has(.hostname-cell-missing) {
 				background: var(--bg-vanilla-100);
 			}
 
@@ -365,6 +384,10 @@
 				color: var(--bg-ink-300);
 			}
 
+			.hostname-cell-placeholder {
+				color: var(--text-ink-300);
+			}
+
 			.ant-table-tbody > tr:hover > td {
 				background: rgba(0, 0, 0, 0.04);
 			}

frontend/src/container/InfraMonitoringHosts/__tests__/utilts.test.tsx

@@ -1,13 +1,24 @@
-import { render } from '@testing-library/react';
+import { render, screen } from '@testing-library/react';
+import { HostData, TimeSeries } from 'api/infraMonitoring/getHostLists';
 
-import { formatDataForTable, GetHostsQuickFiltersConfig } from '../utils';
+import {
+	formatDataForTable,
+	GetHostsQuickFiltersConfig,
+	HostnameCell,
+} from '../utils';
 
 const PROGRESS_BAR_CLASS = '.progress-bar';
 
+const emptyTimeSeries: TimeSeries = {
+	labels: {},
+	labelsArray: [],
+	values: [],
+};
+
 describe('InfraMonitoringHosts utils', () => {
 	describe('formatDataForTable', () => {
 		it('should format host data correctly', () => {
-			const mockData = [
+			const mockData: HostData[] = [
 				{
 					hostName: 'test-host',
 					active: true,
@@ -16,8 +27,12 @@ describe('InfraMonitoringHosts utils', () => {
 					wait: 0.05,
 					load15: 2.5,
 					os: 'linux',
+					cpuTimeSeries: emptyTimeSeries,
+					memoryTimeSeries: emptyTimeSeries,
+					waitTimeSeries: emptyTimeSeries,
+					load15TimeSeries: emptyTimeSeries,
 				},
-			] as any;
+			];
 
 			const result = formatDataForTable(mockData);
 
@@ -46,7 +61,7 @@ describe('InfraMonitoringHosts utils', () => {
 		});
 
 		it('should handle inactive hosts', () => {
-			const mockData = [
+			const mockData: HostData[] = [
 				{
 					hostName: 'test-host',
 					active: false,
@@ -55,12 +70,12 @@ describe('InfraMonitoringHosts utils', () => {
 					wait: 0.02,
 					load15: 1.2,
 					os: 'linux',
-					cpuTimeSeries: [],
-					memoryTimeSeries: [],
-					waitTimeSeries: [],
-					load15TimeSeries: [],
+					cpuTimeSeries: emptyTimeSeries,
+					memoryTimeSeries: emptyTimeSeries,
+					waitTimeSeries: emptyTimeSeries,
+					load15TimeSeries: emptyTimeSeries,
 				},
-			] as any;
+			];
 
 			const result = formatDataForTable(mockData);
 
@@ -68,6 +83,65 @@ describe('InfraMonitoringHosts utils', () => {
 			expect(inactiveTag.container.textContent).toBe('INACTIVE');
 			expect(inactiveTag.container.querySelector('.inactive')).toBeTruthy();
 		});
+
+		it('should set hostName to empty string when host has no hostname', () => {
+			const mockData: HostData[] = [
+				{
+					hostName: '',
+					active: true,
+					cpu: 0.5,
+					memory: 0.4,
+					wait: 0.01,
+					load15: 1.0,
+					os: 'linux',
+					cpuTimeSeries: emptyTimeSeries,
+					memoryTimeSeries: emptyTimeSeries,
+					waitTimeSeries: emptyTimeSeries,
+					load15TimeSeries: emptyTimeSeries,
+				},
+			];
+
+			const result = formatDataForTable(mockData);
+			expect(result[0].hostName).toBe('');
+			expect(result[0].key).toBe('-0');
+		});
+	});
+
+	describe('HostnameCell', () => {
+		it('should render hostname when present (case A: no icon)', () => {
+			const { container } = render(<HostnameCell hostName="gke-prod-1" />);
+			expect(container.querySelector('.hostname-column-value')).toBeTruthy();
+			expect(container.textContent).toBe('gke-prod-1');
+			expect(container.querySelector('.hostname-cell-missing')).toBeFalsy();
+			expect(container.querySelector('.hostname-cell-warning-icon')).toBeFalsy();
+		});
+
+		it('should render placeholder and icon when hostName is empty (case B)', () => {
+			const { container } = render(<HostnameCell hostName="" />);
+			expect(screen.getByText('-')).toBeTruthy();
+			expect(container.querySelector('.hostname-cell-missing')).toBeTruthy();
+			const iconWrapper = container.querySelector('.hostname-cell-warning-icon');
+			expect(iconWrapper).toBeTruthy();
+			expect(iconWrapper?.getAttribute('aria-label')).toBe(
+				'Missing host.name metadata',
+			);
+			expect(iconWrapper?.getAttribute('tabindex')).toBe('0');
+			// Tooltip with "Learn how to configure →" link is shown on hover/focus
+		});
+
+		it('should render placeholder and icon when hostName is whitespace only (case C)', () => {
+			const { container } = render(<HostnameCell hostName="   " />);
+			expect(screen.getByText('-')).toBeTruthy();
+			expect(container.querySelector('.hostname-cell-missing')).toBeTruthy();
+			expect(container.querySelector('.hostname-cell-warning-icon')).toBeTruthy();
+		});
+
+		it('should render placeholder and icon when hostName is undefined (case D)', () => {
+			const { container } = render(<HostnameCell hostName={undefined} />);
+			expect(screen.getByText('-')).toBeTruthy();
+			expect(container.querySelector('.hostname-cell-missing')).toBeTruthy();
+			expect(container.querySelector('.hostname-cell-warning-icon')).toBeTruthy();
+		});
 	});
 
 	describe('GetHostsQuickFiltersConfig', () => {

frontend/src/container/InfraMonitoringHosts/utils.tsx

@@ -1,7 +1,7 @@
 import { Dispatch, SetStateAction } from 'react';
 import { InfoCircleOutlined } from '@ant-design/icons';
 import { Color } from '@signozhq/design-tokens';
-import { Progress, TabsProps, Tag, Tooltip } from 'antd';
+import { Progress, TabsProps, Tag, Tooltip, Typography } from 'antd';
 import { ColumnType } from 'antd/es/table';
 import {
 	HostData,
@@ -14,6 +14,7 @@ import {
 } from 'components/QuickFilters/types';
 import TabLabel from 'components/TabLabel';
 import { PANEL_TYPES } from 'constants/queryBuilder';
+import { TriangleAlert } from 'lucide-react';
 import { ErrorResponse, SuccessResponse } from 'types/api';
 import { DataTypes } from 'types/api/queryBuilder/queryAutocompleteResponse';
 import { TagFilter } from 'types/api/queryBuilder/queryBuilderData';
@@ -24,6 +25,7 @@ import HostsList from './HostsList';
 import './InfraMonitoring.styles.scss';
 
 export interface HostRowData {
+	key?: string;
 	hostName: string;
 	cpu: React.ReactNode;
 	memory: React.ReactNode;
@@ -32,6 +34,59 @@ export interface HostRowData {
 	active: React.ReactNode;
 }
 
+const HOSTNAME_DOCS_URL =
+	'https://signoz.io/docs/logs-management/guides/set-resource-attributes-for-logs/';
+
+export function HostnameCell({
+	hostName,
+}: {
+	hostName?: string | null;
+}): React.ReactElement {
+	const isEmpty = !hostName || !hostName.trim();
+	if (!isEmpty) {
+		return <div className="hostname-column-value">{hostName}</div>;
+	}
+	return (
+		<div className="hostname-cell-missing">
+			<Typography.Text type="secondary" className="hostname-cell-placeholder">
+				-
+			</Typography.Text>
+			<Tooltip
+				title={
+					<div>
+						Missing host.name metadata.
+						<br />
+						<a
+							href={HOSTNAME_DOCS_URL}
+							target="_blank"
+							rel="noopener noreferrer"
+							onClick={(e): void => e.stopPropagation()}
+						>
+							Learn how to configure →
+						</a>
+					</div>
+				}
+				trigger={['hover', 'focus']}
+			>
+				<span
+					className="hostname-cell-warning-icon"
+					tabIndex={0}
+					role="img"
+					aria-label="Missing host.name metadata"
+					onClick={(e): void => e.stopPropagation()}
+					onKeyDown={(e): void => {
+						if (e.key === 'Enter' || e.key === ' ') {
+							e.stopPropagation();
+						}
+					}}
+				>
+					<TriangleAlert size={14} color={Color.BG_CHERRY_500} />
+				</span>
+			</Tooltip>
+		</div>
+	);
+}
+
 export interface HostsListTableProps {
 	isLoading: boolean;
 	isError: boolean;
@@ -75,8 +130,8 @@ export const getHostsListColumns = (): ColumnType<HostRowData>[] => [
 		dataIndex: 'hostName',
 		key: 'hostName',
 		width: 250,
-		render: (value: string): React.ReactNode => (
-			<div className="hostname-column-value">{value}</div>
+		render: (value: string | undefined): React.ReactNode => (
+			<HostnameCell hostName={value ?? ''} />
 		),
 	},
 	{

frontend/src/container/PanelWrapper/constants.ts

@@ -1,6 +1,5 @@
 import { PANEL_TYPES } from 'constants/queryBuilder';
 
-import TimeSeriesPanel from '../DashboardContainer/visualization/panels/TimeSeriesPanel/TimeSeriesPanel';
 import HistogramPanelWrapper from './HistogramPanelWrapper';
 import ListPanelWrapper from './ListPanelWrapper';
 import PiePanelWrapper from './PiePanelWrapper';
@@ -9,7 +8,7 @@ import UplotPanelWrapper from './UplotPanelWrapper';
 import ValuePanelWrapper from './ValuePanelWrapper';
 
 export const PanelTypeVsPanelWrapper = {
-	[PANEL_TYPES.TIME_SERIES]: TimeSeriesPanel,
+	[PANEL_TYPES.TIME_SERIES]: UplotPanelWrapper,
 	[PANEL_TYPES.TABLE]: TablePanelWrapper,
 	[PANEL_TYPES.LIST]: ListPanelWrapper,
 	[PANEL_TYPES.VALUE]: ValuePanelWrapper,

frontend/src/hooks/useCopyToClipboard.ts

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

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

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

frontend/src/lib/dashboardVariables/variableReference.ts

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

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

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

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

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

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

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

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

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

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

@@ -1,4 +1,3 @@
-import { SeriesVisibilityState } from 'container/DashboardContainer/visualization/panels/types';
 import { getStoredSeriesVisibility } from 'container/DashboardContainer/visualization/panels/utils/legendVisibilityUtils';
 import { ThresholdsDrawHookOptions } from 'lib/uPlotV2/hooks/types';
 import { thresholdsDrawHook } from 'lib/uPlotV2/hooks/useThresholdsDrawHook';
@@ -236,9 +235,9 @@ export class UPlotConfigBuilder extends ConfigBuilder<
 	}
 
 	/**
-	 * Returns stored series visibility by index from localStorage when preferences source is LOCAL_STORAGE, otherwise null.
+	 * Returns stored series visibility map from localStorage when preferences source is LOCAL_STORAGE, otherwise null.
 	 */
-	private getStoredVisibility(): SeriesVisibilityState | null {
+	private getStoredVisibilityMap(): Map<string, boolean> | null {
 		if (
 			this.widgetId &&
 			this.selectionPreferencesSource === SelectionPreferencesSource.LOCAL_STORAGE
@@ -252,23 +251,22 @@ export class UPlotConfigBuilder extends ConfigBuilder<
 	 * Get legend items with visibility state restored from localStorage if available
 	 */
 	getLegendItems(): Record<number, LegendItem> {
-		const seriesVisibilityState = this.getStoredVisibility();
-		const isAnySeriesHidden = !!seriesVisibilityState?.visibility?.some(
-			(show) => !show,
+		const visibilityMap = this.getStoredVisibilityMap();
+		const isAnySeriesHidden = !!(
+			visibilityMap && Array.from(visibilityMap.values()).some((show) => !show)
 		);
 
 		return this.series.reduce((acc, s: UPlotSeriesBuilder, index: number) => {
 			const seriesConfig = s.getConfig();
 			const label = seriesConfig.label ?? '';
-			// +1 because uPlot series 0 is x-axis/time; data series are at 1, 2, ... (also matches stored visibility[0]=time, visibility[1]=first data, ...)
-			const seriesIndex = index + 1;
-			const show = resolveSeriesVisibility({
-				seriesIndex,
-				seriesShow: seriesConfig.show,
-				seriesLabel: label,
-				seriesVisibilityState,
+			const seriesIndex = index + 1; // +1 because the first series is the timestamp
+
+			const show = resolveSeriesVisibility(
+				label,
+				seriesConfig.show,
+				visibilityMap,
 				isAnySeriesHidden,
-			});
+			);
 
 			acc[seriesIndex] = {
 				seriesIndex,
@@ -296,23 +294,22 @@ export class UPlotConfigBuilder extends ConfigBuilder<
 			...DEFAULT_PLOT_CONFIG,
 		};
 
-		const seriesVisibilityState = this.getStoredVisibility();
-		const isAnySeriesHidden = !!seriesVisibilityState?.visibility?.some(
-			(show) => !show,
+		const visibilityMap = this.getStoredVisibilityMap();
+		const isAnySeriesHidden = !!(
+			visibilityMap && Array.from(visibilityMap.values()).some((show) => !show)
 		);
 
 		config.series = [
 			{ value: (): string => '' }, // Base series for timestamp
-			...this.series.map((s, index) => {
+			...this.series.map((s) => {
 				const series = s.getConfig();
-				// Stored visibility[0] is x-axis/time; data series start at visibility[1]
-				const visible = resolveSeriesVisibility({
-					seriesIndex: index + 1,
-					seriesShow: series.show,
-					seriesLabel: series.label ?? '',
-					seriesVisibilityState,
+				const label = series.label ?? '';
+				const visible = resolveSeriesVisibility(
+					label,
+					series.show,
+					visibilityMap,
 					isAnySeriesHidden,
-				});
+				);
 				return {
 					...series,
 					show: visible,

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

@@ -15,33 +15,7 @@ import {
  * Builder for uPlot series configuration
  * Handles creation of series settings
  */
-
-/**
- * Path builders are static and shared across all instances of UPlotSeriesBuilder
- */
-let builders: PathBuilders | null = null;
 export class UPlotSeriesBuilder extends ConfigBuilder<SeriesProps, Series> {
-	constructor(props: SeriesProps) {
-		super(props);
-		const pathBuilders = uPlot.paths;
-
-		if (!builders) {
-			const linearBuilder = pathBuilders.linear;
-			const splineBuilder = pathBuilders.spline;
-			const steppedBuilder = pathBuilders.stepped;
-
-			if (!linearBuilder || !splineBuilder || !steppedBuilder) {
-				throw new Error('Required uPlot path builders are not available');
-			}
-			builders = {
-				linear: linearBuilder(),
-				spline: splineBuilder(),
-				stepBefore: steppedBuilder({ align: -1 }),
-				stepAfter: steppedBuilder({ align: 1 }),
-			};
-		}
-	}
-
 	private buildLineConfig({
 		lineColor,
 		lineWidth,
@@ -224,6 +198,8 @@ interface PathBuilders {
 	[key: string]: Series.PathBuilder;
 }
 
+let builders: PathBuilders | null = null;
+
 /**
  * Get path builder based on draw style and interpolation
  */
@@ -231,8 +207,23 @@ function getPathBuilder(
 	style: DrawStyle,
 	lineInterpolation?: LineInterpolation,
 ): Series.PathBuilder {
+	const pathBuilders = uPlot.paths;
+
 	if (!builders) {
-		throw new Error('Required uPlot path builders are not available');
+		const linearBuilder = pathBuilders.linear;
+		const splineBuilder = pathBuilders.spline;
+		const steppedBuilder = pathBuilders.stepped;
+
+		if (!linearBuilder || !splineBuilder || !steppedBuilder) {
+			throw new Error('Required uPlot path builders are not available');
+		}
+
+		builders = {
+			linear: linearBuilder(),
+			spline: splineBuilder(),
+			stepBefore: steppedBuilder({ align: -1 }),
+			stepAfter: steppedBuilder({ align: 1 }),
+		};
 	}
 
 	if (style === DrawStyle.Line) {

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

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

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

@@ -1,337 +0,0 @@
-import { PANEL_TYPES } from 'constants/queryBuilder';
-import uPlot from 'uplot';
-
-import type { SeriesProps } from '../types';
-import { DrawStyle, SelectionPreferencesSource } from '../types';
-import { UPlotConfigBuilder } from '../UPlotConfigBuilder';
-
-// Mock only the real boundary that hits localStorage
-jest.mock(
-	'container/DashboardContainer/visualization/panels/utils/legendVisibilityUtils',
-	() => ({
-		getStoredSeriesVisibility: jest.fn(),
-	}),
-);
-
-const getStoredSeriesVisibilityMock = jest.requireMock(
-	'container/DashboardContainer/visualization/panels/utils/legendVisibilityUtils',
-) as {
-	getStoredSeriesVisibility: jest.Mock;
-};
-
-describe('UPlotConfigBuilder', () => {
-	beforeEach(() => {
-		jest.clearAllMocks();
-	});
-
-	const createSeriesProps = (
-		overrides: Partial<SeriesProps> = {},
-	): SeriesProps => ({
-		scaleKey: 'y',
-		label: 'Requests',
-		colorMapping: {},
-		drawStyle: DrawStyle.Line,
-		panelType: PANEL_TYPES.TIME_SERIES,
-		...overrides,
-	});
-
-	it('returns correct save selection preference flag from constructor args', () => {
-		const builder = new UPlotConfigBuilder({
-			shouldSaveSelectionPreference: true,
-		});
-
-		expect(builder.getShouldSaveSelectionPreference()).toBe(true);
-	});
-
-	it('returns widgetId from constructor args', () => {
-		const builder = new UPlotConfigBuilder({ widgetId: 'widget-123' });
-
-		expect(builder.getWidgetId()).toBe('widget-123');
-	});
-
-	it('sets tzDate from constructor and includes it in config', () => {
-		const tzDate = (ts: number): Date => new Date(ts);
-		const builder = new UPlotConfigBuilder({ tzDate });
-
-		const config = builder.getConfig();
-
-		expect(config.tzDate).toBe(tzDate);
-	});
-
-	it('does not call onDragSelect for click without drag (width === 0)', () => {
-		const onDragSelect = jest.fn();
-		const builder = new UPlotConfigBuilder({ onDragSelect });
-
-		const config = builder.getConfig();
-		const setSelectHooks = config.hooks?.setSelect ?? [];
-		expect(setSelectHooks.length).toBe(1);
-
-		const uplotInstance = ({
-			select: { left: 10, width: 0 },
-			posToVal: jest.fn(),
-		} as unknown) as uPlot;
-
-		// Simulate uPlot calling the hook
-		const setSelectHook = setSelectHooks[0];
-		setSelectHook!(uplotInstance);
-
-		expect(onDragSelect).not.toHaveBeenCalled();
-	});
-
-	it('calls onDragSelect with start and end times in milliseconds for a drag selection', () => {
-		const onDragSelect = jest.fn();
-		const builder = new UPlotConfigBuilder({ onDragSelect });
-
-		const config = builder.getConfig();
-		const setSelectHooks = config.hooks?.setSelect ?? [];
-		expect(setSelectHooks.length).toBe(1);
-
-		const posToVal = jest
-			.fn()
-			// left position
-			.mockReturnValueOnce(100)
-			// left + width
-			.mockReturnValueOnce(110);
-
-		const uplotInstance = ({
-			select: { left: 50, width: 20 },
-			posToVal,
-		} as unknown) as uPlot;
-
-		const setSelectHook = setSelectHooks[0];
-		setSelectHook!(uplotInstance);
-
-		expect(onDragSelect).toHaveBeenCalledTimes(1);
-		// 100 and 110 seconds converted to milliseconds
-		expect(onDragSelect).toHaveBeenCalledWith(100_000, 110_000);
-	});
-
-	it('adds and removes hooks via addHook, and exposes them through getConfig', () => {
-		const builder = new UPlotConfigBuilder();
-		const drawHook = jest.fn();
-
-		const remove = builder.addHook('draw', drawHook as uPlot.Hooks.Defs['draw']);
-
-		let config = builder.getConfig();
-		expect(config.hooks?.draw).toContain(drawHook);
-
-		// Remove and ensure it no longer appears in config
-		remove();
-		config = builder.getConfig();
-		expect(config.hooks?.draw ?? []).not.toContain(drawHook);
-	});
-
-	it('adds axes, scales, and series and wires them into the final config', () => {
-		const builder = new UPlotConfigBuilder();
-
-		// Add axis and scale
-		builder.addAxis({ scaleKey: 'y', label: 'Requests' });
-		builder.addScale({ scaleKey: 'y' });
-
-		// Add two series – legend indices should start from 1 (0 is the timestamp series)
-		builder.addSeries(createSeriesProps({ label: 'Requests' }));
-		builder.addSeries(createSeriesProps({ label: 'Errors' }));
-
-		const config = builder.getConfig();
-
-		// Axes
-		expect(config.axes).toHaveLength(1);
-		expect(config.axes?.[0].scale).toBe('y');
-
-		// Scales are returned as an object keyed by scaleKey
-		expect(config.scales).toBeDefined();
-		expect(Object.keys(config.scales ?? {})).toContain('y');
-
-		// Series: base timestamp + 2 data series
-		expect(config.series).toHaveLength(3);
-		// Base series (index 0) has a value formatter that returns empty string
-		const baseSeries = config.series?.[0] as { value?: () => string };
-		expect(typeof baseSeries?.value).toBe('function');
-		expect(baseSeries?.value?.()).toBe('');
-
-		// Legend items align with series and carry label and color from series config
-		const legendItems = builder.getLegendItems();
-		expect(Object.keys(legendItems)).toEqual(['1', '2']);
-		expect(legendItems[1].seriesIndex).toBe(1);
-		expect(legendItems[1].label).toBe('Requests');
-		expect(legendItems[2].label).toBe('Errors');
-	});
-
-	it('merges axis when addAxis is called twice with same scaleKey', () => {
-		const builder = new UPlotConfigBuilder();
-
-		builder.addAxis({ scaleKey: 'y', label: 'Requests' });
-		builder.addAxis({ scaleKey: 'y', label: 'Updated Label', show: false });
-
-		const config = builder.getConfig();
-
-		expect(config.axes).toHaveLength(1);
-		expect(config.axes?.[0].label).toBe('Updated Label');
-		expect(config.axes?.[0].show).toBe(false);
-	});
-
-	it('merges scale when addScale is called twice with same scaleKey', () => {
-		const builder = new UPlotConfigBuilder();
-
-		builder.addScale({ scaleKey: 'y', min: 0 });
-		builder.addScale({ scaleKey: 'y', max: 100 });
-
-		const config = builder.getConfig();
-
-		// Only one scale entry for 'y' (merge path used, no duplicate added)
-		expect(config.scales).toBeDefined();
-		const scales = config.scales ?? {};
-		expect(Object.keys(scales)).toEqual(['y']);
-		expect(scales.y?.range).toBeDefined();
-	});
-
-	it('restores visibility state from localStorage when selectionPreferencesSource is LOCAL_STORAGE', () => {
-		// Index 0 = x-axis/time; indices 1,2 = data series (Requests, Errors). resolveSeriesVisibility matches by seriesIndex + seriesLabel.
-		getStoredSeriesVisibilityMock.getStoredSeriesVisibility.mockReturnValue({
-			labels: ['x-axis', 'Requests', 'Errors'],
-			visibility: [true, true, false],
-		});
-
-		const builder = new UPlotConfigBuilder({
-			widgetId: 'widget-1',
-			selectionPreferencesSource: SelectionPreferencesSource.LOCAL_STORAGE,
-		});
-
-		builder.addSeries(createSeriesProps({ label: 'Requests' }));
-		builder.addSeries(createSeriesProps({ label: 'Errors' }));
-
-		const legendItems = builder.getLegendItems();
-
-		// When any series is hidden, legend visibility is driven by the stored map
-		expect(legendItems[1].show).toBe(true);
-		expect(legendItems[2].show).toBe(false);
-
-		const config = builder.getConfig();
-		const [, firstSeries, secondSeries] = config.series ?? [];
-
-		expect(firstSeries?.show).toBe(true);
-		expect(secondSeries?.show).toBe(false);
-	});
-
-	it('does not attempt to read stored visibility when using in-memory preferences', () => {
-		const builder = new UPlotConfigBuilder({
-			widgetId: 'widget-1',
-			selectionPreferencesSource: SelectionPreferencesSource.IN_MEMORY,
-		});
-
-		builder.addSeries(createSeriesProps({ label: 'Requests' }));
-
-		builder.getLegendItems();
-		builder.getConfig();
-
-		expect(
-			getStoredSeriesVisibilityMock.getStoredSeriesVisibility,
-		).not.toHaveBeenCalled();
-	});
-
-	it('adds thresholds only once per scale key', () => {
-		const builder = new UPlotConfigBuilder();
-
-		const thresholdsOptions = {
-			scaleKey: 'y',
-			thresholds: [{ thresholdValue: 100 }],
-		};
-
-		builder.addThresholds(thresholdsOptions);
-		builder.addThresholds(thresholdsOptions);
-
-		const config = builder.getConfig();
-		const drawHooks = config.hooks?.draw ?? [];
-
-		// Only a single draw hook should be registered for the same scaleKey
-		expect(drawHooks.length).toBe(1);
-	});
-
-	it('adds multiple thresholds when scale key is different', () => {
-		const builder = new UPlotConfigBuilder();
-
-		const thresholdsOptions = {
-			scaleKey: 'y',
-			thresholds: [{ thresholdValue: 100 }],
-		};
-		builder.addThresholds(thresholdsOptions);
-		const thresholdsOptions2 = {
-			scaleKey: 'y2',
-			thresholds: [{ thresholdValue: 200 }],
-		};
-		builder.addThresholds(thresholdsOptions2);
-
-		const config = builder.getConfig();
-		const drawHooks = config.hooks?.draw ?? [];
-
-		// Two draw hooks should be registered for different scaleKeys
-		expect(drawHooks.length).toBe(2);
-	});
-
-	it('merges cursor configuration with defaults instead of replacing them', () => {
-		const builder = new UPlotConfigBuilder();
-
-		builder.setCursor({
-			drag: { setScale: false },
-		});
-
-		const config = builder.getConfig();
-
-		expect(config.cursor?.drag?.setScale).toBe(false);
-		// Points configuration from DEFAULT_CURSOR_CONFIG should still be present
-		expect(config.cursor?.points).toBeDefined();
-	});
-
-	it('adds plugins and includes them in config', () => {
-		const builder = new UPlotConfigBuilder();
-		const plugin: uPlot.Plugin = {
-			opts: (): void => {},
-			hooks: {},
-		};
-
-		builder.addPlugin(plugin);
-
-		const config = builder.getConfig();
-
-		expect(config.plugins).toContain(plugin);
-	});
-
-	it('sets padding, legend, focus, select, tzDate, bands and includes them in config', () => {
-		const tzDate = (ts: number): Date => new Date(ts);
-		const builder = new UPlotConfigBuilder();
-
-		const bands: uPlot.Band[] = [{ series: [1, 2], fill: (): string => '#000' }];
-
-		builder.setBands(bands);
-		builder.setPadding([10, 20, 30, 40]);
-		builder.setLegend({ show: true, live: true });
-		builder.setFocus({ alpha: 0.5 });
-		builder.setSelect({ left: 0, width: 0, top: 0, height: 0 });
-		builder.setTzDate(tzDate);
-
-		const config = builder.getConfig();
-
-		expect(config.bands).toEqual(bands);
-		expect(config.padding).toEqual([10, 20, 30, 40]);
-		expect(config.legend).toEqual({ show: true, live: true });
-		expect(config.focus).toEqual({ alpha: 0.5 });
-		expect(config.select).toEqual({ left: 0, width: 0, top: 0, height: 0 });
-		expect(config.tzDate).toBe(tzDate);
-	});
-
-	it('does not include plugins when none added', () => {
-		const builder = new UPlotConfigBuilder();
-
-		const config = builder.getConfig();
-
-		expect(config.plugins).toBeUndefined();
-	});
-
-	it('does not include bands when empty', () => {
-		const builder = new UPlotConfigBuilder();
-
-		const config = builder.getConfig();
-
-		expect(config.bands).toBeUndefined();
-	});
-});

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

@@ -1,25 +1,11 @@
-import { SeriesVisibilityState } from 'container/DashboardContainer/visualization/panels/types';
-
-export function resolveSeriesVisibility({
-	seriesIndex,
-	seriesShow,
-	seriesLabel,
-	seriesVisibilityState,
-	isAnySeriesHidden,
-}: {
-	seriesIndex: number;
-	seriesShow: boolean | undefined | null;
-	seriesLabel: string;
-	seriesVisibilityState: SeriesVisibilityState | null;
-	isAnySeriesHidden: boolean;
-}): boolean {
-	if (
-		isAnySeriesHidden &&
-		seriesVisibilityState?.visibility &&
-		seriesVisibilityState.labels.length > seriesIndex &&
-		seriesVisibilityState.labels[seriesIndex] === seriesLabel
-	) {
-		return seriesVisibilityState.visibility[seriesIndex] ?? false;
+export function resolveSeriesVisibility(
+	label: string,
+	seriesShow: boolean | undefined | null,
+	visibilityMap: Map<string, boolean> | null,
+	isAnySeriesHidden: boolean,
+): boolean {
+	if (isAnySeriesHidden) {
+		return visibilityMap?.get(label) ?? false;
 	}
 	return seriesShow ?? true;
 }

pkg/flagger/registry.go

@@ -3,8 +3,9 @@ package flagger
 import "github.com/SigNoz/signoz/pkg/types/featuretypes"
 
 var (
-	FeatureUseSpanMetrics = featuretypes.MustNewName("use_span_metrics")
-	FeatureKafkaSpanEval  = featuretypes.MustNewName("kafka_span_eval")
+	FeatureUseSpanMetrics       = featuretypes.MustNewName("use_span_metrics")
+	FeatureInterpolationEnabled = featuretypes.MustNewName("interpolation_enabled")
+	FeatureKafkaSpanEval        = featuretypes.MustNewName("kafka_span_eval")
 )
 
 func MustNewRegistry() featuretypes.Registry {
@@ -17,6 +18,14 @@ func MustNewRegistry() featuretypes.Registry {
 			DefaultVariant: featuretypes.MustNewName("disabled"),
 			Variants:       featuretypes.NewBooleanVariants(),
 		},
+		&featuretypes.Feature{
+			Name:           FeatureInterpolationEnabled,
+			Kind:           featuretypes.KindBoolean,
+			Stage:          featuretypes.StageExperimental,
+			Description:    "Controls whether to enable interpolation",
+			DefaultVariant: featuretypes.MustNewName("disabled"),
+			Variants:       featuretypes.NewBooleanVariants(),
+		},
 		&featuretypes.Feature{
 			Name:           FeatureKafkaSpanEval,
 			Kind:           featuretypes.KindBoolean,

pkg/querybuilder/where_clause_visitor.go

@@ -483,22 +483,6 @@ func (v *filterExpressionVisitor) VisitComparison(ctx *grammar.ComparisonContext
 		value1 := v.Visit(values[0])
 		value2 := v.Visit(values[1])
 
-		switch value1.(type) {
-		case float64:
-			if _, ok := value2.(float64); !ok {
-				v.errors = append(v.errors, fmt.Sprintf("value type mismatch for key %s: expected number for both operands", keys[0].Name))
-				return ""
-			}
-		case string:
-			if _, ok := value2.(string); !ok {
-				v.errors = append(v.errors, fmt.Sprintf("value type mismatch for key %s: expected string for both operands", keys[0].Name))
-				return ""
-			}
-		default:
-			v.errors = append(v.errors, fmt.Sprintf("value type mismatch for key %s: operands must be number or string", keys[0].Name))
-			return ""
-		}
-
 		var conds []string
 		for _, key := range keys {
 			condition, err := v.conditionBuilder.ConditionFor(context.Background(), key, op, []any{value1, value2}, v.builder, v.startNs, v.endNs)
@@ -871,7 +855,7 @@ func (v *filterExpressionVisitor) VisitKey(ctx *grammar.KeyContext) any {
 	// 1. either user meant key ( this is already handled above in fieldKeysForName )
 	// 2. or user meant `attribute.key` we look up in the map for all possible field keys with name 'attribute.key'
 
-	// Note:
+	// Note: 
 	// If user only wants to search `attribute.key`, then they have to use `attribute.attribute.key`
 	// If user only wants to search `key`, then they have to use `key`
 	// If user wants to search both, they can use `attribute.key` and we will resolve the ambiguity

pkg/signoz/config.go

@@ -375,6 +375,13 @@ func mergeAndEnsureBackwardCompatibility(ctx context.Context, logger *slog.Logge
 		config.Flagger.Config.Boolean[flagger.FeatureKafkaSpanEval.String()] = os.Getenv("KAFKA_SPAN_EVAL") == "true"
 	}
 
+	if os.Getenv("INTERPOLATION_ENABLED") != "" {
+		logger.WarnContext(ctx, "[Deprecated] env INTERPOLATION_ENABLED is deprecated and scheduled for removal. Please use SIGNOZ_FLAGGER_CONFIG_BOOLEAN_INTERPOLATION__ENABLED instead.")
+		if config.Flagger.Config.Boolean == nil {
+			config.Flagger.Config.Boolean = make(map[string]bool)
+		}
+		config.Flagger.Config.Boolean[flagger.FeatureInterpolationEnabled.String()] = os.Getenv("INTERPOLATION_ENABLED") == "true"
+	}
 }
 
 func (config Config) Collect(_ context.Context, _ valuer.UUID) (map[string]any, error) {

pkg/telemetrymeter/statement_builder.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"log/slog"
 
-	"github.com/SigNoz/signoz/pkg/errors"
 	"github.com/SigNoz/signoz/pkg/factory"
 	"github.com/SigNoz/signoz/pkg/querybuilder"
 	"github.com/SigNoz/signoz/pkg/telemetrymetrics"
@@ -92,9 +91,8 @@ func (b *meterQueryStatementBuilder) buildPipelineStatement(
 		}
 
 		// spatial_aggregation_cte
-		if frag, args, err := b.buildSpatialAggregationCTE(ctx, start, end, query, keys); err != nil {
-			return nil, err
-		} else if frag != "" {
+		frag, args := b.buildSpatialAggregationCTE(ctx, start, end, query, keys)
+		if frag != "" {
 			cteFragments = append(cteFragments, frag)
 			cteArgs = append(cteArgs, args)
 		}
@@ -130,10 +128,7 @@ func (b *meterQueryStatementBuilder) buildTemporalAggDeltaFastPath(
 	}
 
 	tbl := WhichSamplesTableToUse(start, end, query.Aggregations[0].Type, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
-	aggCol, err := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, query.Aggregations[0].Temporality, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
-	if err != nil {
-		return "", []any{}, err
-	}
+	aggCol := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, query.Aggregations[0].Temporality, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
 	if query.Aggregations[0].TimeAggregation == metrictypes.TimeAggregationRate {
 		aggCol = fmt.Sprintf("%s/%d", aggCol, stepSec)
 	}
@@ -213,11 +208,8 @@ func (b *meterQueryStatementBuilder) buildTemporalAggDelta(
 	}
 
 	tbl := WhichSamplesTableToUse(start, end, query.Aggregations[0].Type, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
-	aggCol, err := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, query.Aggregations[0].Temporality,
+	aggCol := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, query.Aggregations[0].Temporality,
 		query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
-	if err != nil {
-		return "", nil, err
-	}
 	if query.Aggregations[0].TimeAggregation == metrictypes.TimeAggregationRate {
 		aggCol = fmt.Sprintf("%s/%d", aggCol, stepSec)
 	}
@@ -286,10 +278,7 @@ func (b *meterQueryStatementBuilder) buildTemporalAggCumulativeOrUnspecified(
 	}
 
 	tbl := WhichSamplesTableToUse(start, end, query.Aggregations[0].Type, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
-	aggCol, err := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, query.Aggregations[0].Temporality, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
-	if err != nil {
-		return "", nil, err
-	}
+	aggCol := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, query.Aggregations[0].Temporality, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
 	baseSb.SelectMore(fmt.Sprintf("%s AS per_series_value", aggCol))
 
 	baseSb.From(fmt.Sprintf("%s.%s AS points", DBName, tbl))
@@ -326,23 +315,25 @@ func (b *meterQueryStatementBuilder) buildTemporalAggCumulativeOrUnspecified(
 
 	switch query.Aggregations[0].TimeAggregation {
 	case metrictypes.TimeAggregationRate:
+		rateExpr := fmt.Sprintf(telemetrymetrics.RateWithoutNegative, start, start)
 		wrapped := sqlbuilder.NewSelectBuilder()
 		wrapped.Select("ts")
 		for _, g := range query.GroupBy {
 			wrapped.SelectMore(fmt.Sprintf("`%s`", g.TelemetryFieldKey.Name))
 		}
-		wrapped.SelectMore(fmt.Sprintf("%s AS per_series_value", telemetrymetrics.RateTmpl))
+		wrapped.SelectMore(fmt.Sprintf("%s AS per_series_value", rateExpr))
 		wrapped.From(fmt.Sprintf("(%s) WINDOW rate_window AS (PARTITION BY fingerprint ORDER BY fingerprint, ts)", innerQuery))
 		q, args := wrapped.BuildWithFlavor(sqlbuilder.ClickHouse, innerArgs...)
 		return fmt.Sprintf("__temporal_aggregation_cte AS (%s)", q), args, nil
 
 	case metrictypes.TimeAggregationIncrease:
+		incExpr := fmt.Sprintf(telemetrymetrics.IncreaseWithoutNegative, start, start)
 		wrapped := sqlbuilder.NewSelectBuilder()
 		wrapped.Select("ts")
 		for _, g := range query.GroupBy {
 			wrapped.SelectMore(fmt.Sprintf("`%s`", g.TelemetryFieldKey.Name))
 		}
-		wrapped.SelectMore(fmt.Sprintf("%s AS per_series_value", telemetrymetrics.IncreaseTmpl))
+		wrapped.SelectMore(fmt.Sprintf("%s AS per_series_value", incExpr))
 		wrapped.From(fmt.Sprintf("(%s) WINDOW rate_window AS (PARTITION BY fingerprint ORDER BY fingerprint, ts)", innerQuery))
 		q, args := wrapped.BuildWithFlavor(sqlbuilder.ClickHouse, innerArgs...)
 		return fmt.Sprintf("__temporal_aggregation_cte AS (%s)", q), args, nil
@@ -357,15 +348,7 @@ func (b *meterQueryStatementBuilder) buildSpatialAggregationCTE(
 	_ uint64,
 	query qbtypes.QueryBuilderQuery[qbtypes.MetricAggregation],
 	_ map[string][]*telemetrytypes.TelemetryFieldKey,
-) (string, []any, error) {
-
-	if query.Aggregations[0].SpaceAggregation.IsZero() {
-		return "", []any{}, errors.Newf(
-			errors.TypeInvalidInput,
-			errors.CodeInvalidInput,
-			"invalid space aggregation, should be one of the following: [`sum`, `avg`, `min`, `max`, `count`]",
-		)
-	}
+) (string, []any) {
 	sb := sqlbuilder.NewSelectBuilder()
 
 	sb.Select("ts")
@@ -382,5 +365,5 @@ func (b *meterQueryStatementBuilder) buildSpatialAggregationCTE(
 	sb.GroupBy(querybuilder.GroupByKeys(query.GroupBy)...)
 
 	q, args := sb.BuildWithFlavor(sqlbuilder.ClickHouse)
-	return fmt.Sprintf("__spatial_aggregation_cte AS (%s)", q), args, nil
+	return fmt.Sprintf("__spatial_aggregation_cte AS (%s)", q), args
 }

pkg/telemetrymeter/tables.go

@@ -3,7 +3,6 @@ package telemetrymeter
 import (
 	"time"
 
-	"github.com/SigNoz/signoz/pkg/errors"
 	"github.com/SigNoz/signoz/pkg/types/metrictypes"
 )
 
@@ -64,7 +63,7 @@ func AggregationColumnForSamplesTable(
 	temporality metrictypes.Temporality,
 	timeAggregation metrictypes.TimeAggregation,
 	tableHints *metrictypes.MetricTableHints,
-) (string, error) {
+) string {
 	tableName := WhichSamplesTableToUse(start, end, metricType, timeAggregation, tableHints)
 	var aggregationColumn string
 	switch temporality {
@@ -191,13 +190,5 @@ func AggregationColumnForSamplesTable(
 		}
 
 	}
-
-	if aggregationColumn == "" {
-		return "", errors.Newf(
-			errors.TypeInvalidInput,
-			errors.CodeInvalidInput,
-			"invalid time aggregation, should be one of the following: [`latest`, `sum`, `avg`, `min`, `max`, `count`, `rate`, `increase`]",
-		)
-	}
-	return aggregationColumn, nil
+	return aggregationColumn
 }

pkg/telemetrymetrics/condition_builder.go

@@ -29,7 +29,13 @@ func (c *conditionBuilder) conditionFor(
 	sb *sqlbuilder.SelectBuilder,
 ) (string, error) {
 
-	if operator.IsStringSearchOperator() {
+	switch operator {
+	case qbtypes.FilterOperatorContains,
+		qbtypes.FilterOperatorNotContains,
+		qbtypes.FilterOperatorILike,
+		qbtypes.FilterOperatorNotILike,
+		qbtypes.FilterOperatorLike,
+		qbtypes.FilterOperatorNotLike:
 		value = querybuilder.FormatValueForContains(value)
 	}
 
@@ -38,18 +44,6 @@ func (c *conditionBuilder) conditionFor(
 		return "", err
 	}
 
-	// todo(srikanthccv): use the same data type collision handling when metrics schemas are updated
-	switch v := value.(type) {
-	case float64:
-		tblFieldName = fmt.Sprintf("toFloat64OrNull(%s)", tblFieldName)
-	case []any:
-		if len(v) > 0 && (operator == qbtypes.FilterOperatorBetween || operator == qbtypes.FilterOperatorNotBetween) {
-			if _, ok := v[0].(float64); ok {
-				tblFieldName = fmt.Sprintf("toFloat64OrNull(%s)", tblFieldName)
-			}
-		}
-	}
-
 	switch operator {
 	case qbtypes.FilterOperatorEqual:
 		return sb.E(tblFieldName, value), nil

pkg/telemetrymetrics/statement_builder.go

@@ -5,27 +5,67 @@ import (
 	"fmt"
 	"log/slog"
 
-	"github.com/SigNoz/signoz/pkg/errors"
 	"github.com/SigNoz/signoz/pkg/factory"
 	"github.com/SigNoz/signoz/pkg/flagger"
 	"github.com/SigNoz/signoz/pkg/querybuilder"
+	"github.com/SigNoz/signoz/pkg/types/featuretypes"
 	"github.com/SigNoz/signoz/pkg/types/metrictypes"
 	qbtypes "github.com/SigNoz/signoz/pkg/types/querybuildertypes/querybuildertypesv5"
 	"github.com/SigNoz/signoz/pkg/types/telemetrytypes"
+	"github.com/SigNoz/signoz/pkg/valuer"
 	"github.com/huandu/go-sqlbuilder"
 	"golang.org/x/exp/slices"
 )
 
 const (
-	RateTmpl = `multiIf(row_number() OVER rate_window = 1, nan, (per_series_value - lagInFrame(per_series_value, 1) OVER rate_window) < 0, per_series_value / (ts - lagInFrame(ts, 1) OVER rate_window), (per_series_value - lagInFrame(per_series_value, 1) OVER rate_window) / (ts - lagInFrame(ts, 1) OVER rate_window))`
+	RateWithoutNegative     = `If((per_series_value - lagInFrame(per_series_value, 1, 0) OVER rate_window) < 0, per_series_value / (ts - lagInFrame(ts, 1, toDateTime(fromUnixTimestamp64Milli(%d))) OVER rate_window), (per_series_value - lagInFrame(per_series_value, 1, 0) OVER rate_window) / (ts - lagInFrame(ts, 1, toDateTime(fromUnixTimestamp64Milli(%d))) OVER rate_window))`
+	IncreaseWithoutNegative = `If((per_series_value - lagInFrame(per_series_value, 1, 0) OVER rate_window) < 0, per_series_value, ((per_series_value - lagInFrame(per_series_value, 1, 0) OVER rate_window) / (ts - lagInFrame(ts, 1, toDateTime(fromUnixTimestamp64Milli(%d))) OVER rate_window)) * (ts - lagInFrame(ts, 1, toDateTime(fromUnixTimestamp64Milli(%d))) OVER rate_window))`
 
-	IncreaseTmpl = `multiIf(row_number() OVER rate_window = 1, nan, (per_series_value - lagInFrame(per_series_value, 1) OVER rate_window) < 0, per_series_value, per_series_value - lagInFrame(per_series_value, 1) OVER rate_window)`
+	RateWithoutNegativeMultiTemporality     = `IF(LOWER(temporality) LIKE LOWER('delta'), %s, IF((%s - lagInFrame(%s, 1, 0) OVER rate_window) < 0, %s / (ts - lagInFrame(ts, 1, toDateTime(fromUnixTimestamp64Milli(%d))) OVER rate_window), (%s - lagInFrame(%s, 1, 0) OVER rate_window) / (ts - lagInFrame(ts, 1, toDateTime(fromUnixTimestamp64Milli(%d))) OVER rate_window))) AS per_series_value`
+	IncreaseWithoutNegativeMultiTemporality = `IF(LOWER(temporality) LIKE LOWER('delta'), %s, IF((%s - lagInFrame(%s, 1, 0) OVER rate_window) < 0, %s, ((%s - lagInFrame(%s, 1, 0) OVER rate_window) / (ts - lagInFrame(ts, 1, toDateTime(fromUnixTimestamp64Milli(%d))) OVER rate_window)) * (ts - lagInFrame(ts, 1, toDateTime(fromUnixTimestamp64Milli(%d))) OVER rate_window))) AS per_series_value`
+	OthersMultiTemporality                  = `IF(LOWER(temporality) LIKE LOWER('delta'), %s, %s) AS per_series_value`
 
-	RateWithoutNegativeMultiTemporality = `IF(LOWER(temporality) LIKE LOWER('delta'), %s, multiIf(row_number() OVER rate_window = 1, nan, (%s - lagInFrame(%s, 1) OVER rate_window) < 0, %s / (ts - lagInFrame(ts, 1) OVER rate_window), (%s - lagInFrame(%s, 1) OVER rate_window) / (ts - lagInFrame(ts, 1) OVER rate_window))) AS per_series_value`
+	RateWithInterpolation = `
+		CASE 
+			WHEN row_number() OVER rate_window = 1 THEN 
+				-- First row: try to interpolate using next value
+				CASE 
+					WHEN leadInFrame(per_series_value, 1) OVER rate_window IS NOT NULL THEN
+						-- Assume linear growth to next point
+						(leadInFrame(per_series_value, 1) OVER rate_window - per_series_value) / 
+						(leadInFrame(ts, 1) OVER rate_window - ts)
+					ELSE 
+						0  -- No next value either, can't interpolate
+				END
+			WHEN (per_series_value - lagInFrame(per_series_value, 1) OVER rate_window) < 0 THEN
+				-- Counter reset detected
+				per_series_value / (ts - lagInFrame(ts, 1) OVER rate_window)
+			ELSE 
+				-- Normal case: calculate rate
+				(per_series_value - lagInFrame(per_series_value, 1) OVER rate_window) / 
+				(ts - lagInFrame(ts, 1) OVER rate_window)
+		END`
 
-	IncreaseWithoutNegativeMultiTemporality = `IF(LOWER(temporality) LIKE LOWER('delta'), %s, multiIf(row_number() OVER rate_window = 1, nan, (%s - lagInFrame(%s, 1) OVER rate_window) < 0, %s, (%s - lagInFrame(%s, 1) OVER rate_window))) AS per_series_value`
-
-	OthersMultiTemporality = `IF(LOWER(temporality) LIKE LOWER('delta'), %s, %s) AS per_series_value`
+	IncreaseWithInterpolation = `
+		CASE 
+			WHEN row_number() OVER rate_window = 1 THEN 
+				-- First row: try to interpolate using next value
+				CASE 
+					WHEN leadInFrame(per_series_value, 1) OVER rate_window IS NOT NULL THEN
+						-- Calculate the interpolated increase for this interval
+						((leadInFrame(per_series_value, 1) OVER rate_window - per_series_value) / 
+						 (leadInFrame(ts, 1) OVER rate_window - ts)) * 
+						(leadInFrame(ts, 1) OVER rate_window - ts)
+					ELSE 
+						0  -- No next value either, can't interpolate
+				END
+			WHEN (per_series_value - lagInFrame(per_series_value, 1) OVER rate_window) < 0 THEN
+				-- Counter reset detected: the increase is the current value
+				per_series_value
+			ELSE 
+				-- Normal case: calculate increase
+				(per_series_value - lagInFrame(per_series_value, 1) OVER rate_window)
+		END`
 )
 
 type MetricQueryStatementBuilder struct {
@@ -218,9 +258,8 @@ func (b *MetricQueryStatementBuilder) buildPipelineStatement(
 
 	if b.CanShortCircuitDelta(query) {
 		// spatial_aggregation_cte directly for certain delta queries
-		if frag, args, err := b.buildTemporalAggDeltaFastPath(start, end, query, timeSeriesCTE, timeSeriesCTEArgs); err != nil {
-			return nil, err
-		} else if frag != "" {
+		frag, args := b.buildTemporalAggDeltaFastPath(start, end, query, timeSeriesCTE, timeSeriesCTEArgs)
+		if frag != "" {
 			cteFragments = append(cteFragments, frag)
 			cteArgs = append(cteArgs, args)
 		}
@@ -234,9 +273,8 @@ func (b *MetricQueryStatementBuilder) buildPipelineStatement(
 		}
 
 		// spatial_aggregation_cte
-		if frag, args, err := b.buildSpatialAggregationCTE(ctx, start, end, query, keys); err != nil {
-			return nil, err
-		} else if frag != "" {
+		frag, args := b.buildSpatialAggregationCTE(ctx, start, end, query, keys)
+		if frag != "" {
 			cteFragments = append(cteFragments, frag)
 			cteArgs = append(cteArgs, args)
 		}
@@ -256,7 +294,7 @@ func (b *MetricQueryStatementBuilder) buildTemporalAggDeltaFastPath(
 	query qbtypes.QueryBuilderQuery[qbtypes.MetricAggregation],
 	timeSeriesCTE string,
 	timeSeriesCTEArgs []any,
-) (string, []any, error) {
+) (string, []any) {
 	stepSec := int64(query.StepInterval.Seconds())
 
 	sb := sqlbuilder.NewSelectBuilder()
@@ -269,13 +307,10 @@ func (b *MetricQueryStatementBuilder) buildTemporalAggDeltaFastPath(
 		sb.SelectMore(fmt.Sprintf("`%s`", g.TelemetryFieldKey.Name))
 	}
 
-	aggCol, err := AggregationColumnForSamplesTable(
+	aggCol := AggregationColumnForSamplesTable(
 		start, end, query.Aggregations[0].Type, query.Aggregations[0].Temporality,
 		query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints,
 	)
-	if err != nil {
-		return "", []any{}, err
-	}
 	if query.Aggregations[0].TimeAggregation == metrictypes.TimeAggregationRate {
 		aggCol = fmt.Sprintf("%s/%d", aggCol, stepSec)
 	}
@@ -299,7 +334,7 @@ func (b *MetricQueryStatementBuilder) buildTemporalAggDeltaFastPath(
 	sb.GroupBy(querybuilder.GroupByKeys(query.GroupBy)...)
 
 	q, args := sb.BuildWithFlavor(sqlbuilder.ClickHouse, timeSeriesCTEArgs...)
-	return fmt.Sprintf("__spatial_aggregation_cte AS (%s)", q), args, nil
+	return fmt.Sprintf("__spatial_aggregation_cte AS (%s)", q), args
 }
 
 func (b *MetricQueryStatementBuilder) buildTimeSeriesCTE(
@@ -402,10 +437,7 @@ func (b *MetricQueryStatementBuilder) buildTemporalAggDelta(
 		sb.SelectMore(fmt.Sprintf("`%s`", g.TelemetryFieldKey.Name))
 	}
 
-	aggCol, err := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, query.Aggregations[0].Temporality, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
-	if err != nil {
-		return "", []any{}, err
-	}
+	aggCol := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, query.Aggregations[0].Temporality, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
 	if query.Aggregations[0].TimeAggregation == metrictypes.TimeAggregationRate {
 		aggCol = fmt.Sprintf("%s/%d", aggCol, stepSec)
 	}
@@ -429,7 +461,7 @@ func (b *MetricQueryStatementBuilder) buildTemporalAggDelta(
 }
 
 func (b *MetricQueryStatementBuilder) buildTemporalAggCumulativeOrUnspecified(
-	_ context.Context,
+	ctx context.Context,
 	start, end uint64,
 	query qbtypes.QueryBuilderQuery[qbtypes.MetricAggregation],
 	timeSeriesCTE string,
@@ -447,10 +479,7 @@ func (b *MetricQueryStatementBuilder) buildTemporalAggCumulativeOrUnspecified(
 		baseSb.SelectMore(fmt.Sprintf("`%s`", g.TelemetryFieldKey.Name))
 	}
 
-	aggCol, err := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, query.Aggregations[0].Temporality, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
-	if err != nil {
-		return "", []any{}, err
-	}
+	aggCol := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, query.Aggregations[0].Temporality, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
 	baseSb.SelectMore(fmt.Sprintf("%s AS per_series_value", aggCol))
 
 	tbl := WhichSamplesTableToUse(start, end, query.Aggregations[0].Type, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
@@ -467,25 +496,36 @@ func (b *MetricQueryStatementBuilder) buildTemporalAggCumulativeOrUnspecified(
 
 	innerQuery, innerArgs := baseSb.BuildWithFlavor(sqlbuilder.ClickHouse, timeSeriesCTEArgs...)
 
+	// ! TODO (balanikaran) Get OrgID via function parameter instead of valuer.GenerateUUID()
+	interpolationEnabled := b.flagger.BooleanOrEmpty(ctx, flagger.FeatureInterpolationEnabled, featuretypes.NewFlaggerEvaluationContext(valuer.GenerateUUID()))
+
 	switch query.Aggregations[0].TimeAggregation {
 	case metrictypes.TimeAggregationRate:
+		rateExpr := fmt.Sprintf(RateWithoutNegative, start, start)
+		if interpolationEnabled {
+			rateExpr = RateWithInterpolation
+		}
 		wrapped := sqlbuilder.NewSelectBuilder()
 		wrapped.Select("ts")
 		for _, g := range query.GroupBy {
 			wrapped.SelectMore(fmt.Sprintf("`%s`", g.TelemetryFieldKey.Name))
 		}
-		wrapped.SelectMore(fmt.Sprintf("%s AS per_series_value", RateTmpl))
+		wrapped.SelectMore(fmt.Sprintf("%s AS per_series_value", rateExpr))
 		wrapped.From(fmt.Sprintf("(%s) WINDOW rate_window AS (PARTITION BY fingerprint ORDER BY fingerprint, ts)", innerQuery))
 		q, args := wrapped.BuildWithFlavor(sqlbuilder.ClickHouse, innerArgs...)
 		return fmt.Sprintf("__temporal_aggregation_cte AS (%s)", q), args, nil
 
 	case metrictypes.TimeAggregationIncrease:
+		incExpr := fmt.Sprintf(IncreaseWithoutNegative, start, start)
+		if interpolationEnabled {
+			incExpr = IncreaseWithInterpolation
+		}
 		wrapped := sqlbuilder.NewSelectBuilder()
 		wrapped.Select("ts")
 		for _, g := range query.GroupBy {
 			wrapped.SelectMore(fmt.Sprintf("`%s`", g.TelemetryFieldKey.Name))
 		}
-		wrapped.SelectMore(fmt.Sprintf("%s AS per_series_value", IncreaseTmpl))
+		wrapped.SelectMore(fmt.Sprintf("%s AS per_series_value", incExpr))
 		wrapped.From(fmt.Sprintf("(%s) WINDOW rate_window AS (PARTITION BY fingerprint ORDER BY fingerprint, ts)", innerQuery))
 		q, args := wrapped.BuildWithFlavor(sqlbuilder.ClickHouse, innerArgs...)
 		return fmt.Sprintf("__temporal_aggregation_cte AS (%s)", q), args, nil
@@ -494,6 +534,7 @@ func (b *MetricQueryStatementBuilder) buildTemporalAggCumulativeOrUnspecified(
 	}
 }
 
+// because RateInterpolation is not enabled anywhere due to some gaps in the logic wrt cache handling, it hasn't been considered for the multi temporality
 func (b *MetricQueryStatementBuilder) buildTemporalAggForMultipleTemporalities(
 	_ context.Context,
 	start, end uint64,
@@ -512,32 +553,18 @@ func (b *MetricQueryStatementBuilder) buildTemporalAggForMultipleTemporalities(
 		sb.SelectMore(fmt.Sprintf("`%s`", g.TelemetryFieldKey.Name))
 	}
 
-	aggForDeltaTemporality, err := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, metrictypes.Delta, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
-	if err != nil {
-		return "", []any{}, err
-	}
-	aggForCumulativeTemporality, err := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, metrictypes.Cumulative, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
-	if err != nil {
-		return "", []any{}, err
-	}
+	aggForDeltaTemporality := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, metrictypes.Delta, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
+	aggForCumulativeTemporality := AggregationColumnForSamplesTable(start, end, query.Aggregations[0].Type, metrictypes.Cumulative, query.Aggregations[0].TimeAggregation, query.Aggregations[0].TableHints)
 	if query.Aggregations[0].TimeAggregation == metrictypes.TimeAggregationRate {
 		aggForDeltaTemporality = fmt.Sprintf("%s/%d", aggForDeltaTemporality, stepSec)
 	}
 
 	switch query.Aggregations[0].TimeAggregation {
 	case metrictypes.TimeAggregationRate:
-		rateExpr := fmt.Sprintf(RateWithoutNegativeMultiTemporality,
-			aggForDeltaTemporality,
-			aggForCumulativeTemporality, aggForCumulativeTemporality, aggForCumulativeTemporality,
-			aggForCumulativeTemporality, aggForCumulativeTemporality,
-		)
+		rateExpr := fmt.Sprintf(RateWithoutNegativeMultiTemporality, aggForDeltaTemporality, aggForCumulativeTemporality, aggForCumulativeTemporality, aggForCumulativeTemporality, start, aggForCumulativeTemporality, aggForCumulativeTemporality, start)
 		sb.SelectMore(rateExpr)
 	case metrictypes.TimeAggregationIncrease:
-		increaseExpr := fmt.Sprintf(IncreaseWithoutNegativeMultiTemporality,
-			aggForDeltaTemporality,
-			aggForCumulativeTemporality, aggForCumulativeTemporality, aggForCumulativeTemporality,
-			aggForCumulativeTemporality, aggForCumulativeTemporality,
-		)
+		increaseExpr := fmt.Sprintf(IncreaseWithoutNegativeMultiTemporality, aggForDeltaTemporality, aggForCumulativeTemporality, aggForCumulativeTemporality, aggForCumulativeTemporality, aggForCumulativeTemporality, aggForCumulativeTemporality, start, start)
 		sb.SelectMore(increaseExpr)
 	default:
 		expr := fmt.Sprintf(OthersMultiTemporality, aggForDeltaTemporality, aggForCumulativeTemporality)
@@ -565,14 +592,7 @@ func (b *MetricQueryStatementBuilder) buildSpatialAggregationCTE(
 	_ uint64,
 	query qbtypes.QueryBuilderQuery[qbtypes.MetricAggregation],
 	_ map[string][]*telemetrytypes.TelemetryFieldKey,
-) (string, []any, error) {
-	if query.Aggregations[0].SpaceAggregation.IsZero() {
-		return "", []any{}, errors.Newf(
-			errors.TypeInvalidInput,
-			errors.CodeInvalidInput,
-			"invalid space aggregation, should be one of the following: [`sum`, `avg`, `min`, `max`, `count`, `p50`, `p75`, `p90`, `p95`, `p99`]",
-		)
-	}
+) (string, []any) {
 	sb := sqlbuilder.NewSelectBuilder()
 
 	sb.Select("ts")
@@ -589,7 +609,7 @@ func (b *MetricQueryStatementBuilder) buildSpatialAggregationCTE(
 	sb.GroupBy(querybuilder.GroupByKeys(query.GroupBy)...)
 
 	q, args := sb.BuildWithFlavor(sqlbuilder.ClickHouse)
-	return fmt.Sprintf("__spatial_aggregation_cte AS (%s)", q), args, nil
+	return fmt.Sprintf("__spatial_aggregation_cte AS (%s)", q), args
 }
 
 func (b *MetricQueryStatementBuilder) BuildFinalSelect(

pkg/telemetrymetrics/tables.go

@@ -3,7 +3,6 @@ package telemetrymetrics
 import (
 	"time"
 
-	"github.com/SigNoz/signoz/pkg/errors"
 	"github.com/SigNoz/signoz/pkg/types/metrictypes"
 )
 
@@ -169,7 +168,7 @@ func AggregationColumnForSamplesTable(
 	temporality metrictypes.Temporality,
 	timeAggregation metrictypes.TimeAggregation,
 	tableHints *metrictypes.MetricTableHints,
-) (string, error) {
+) string {
 	tableName := WhichSamplesTableToUse(start, end, metricType, timeAggregation, tableHints)
 	var aggregationColumn string
 	switch temporality {
@@ -299,12 +298,5 @@ func AggregationColumnForSamplesTable(
 			}
 		}
 	}
-	if aggregationColumn == "" {
-		return "", errors.Newf(
-			errors.TypeInvalidInput,
-			errors.CodeInvalidInput,
-			"invalid time aggregation, should be one of the following: [`latest`, `sum`, `avg`, `min`, `max`, `count`, `rate`, `increase`]",
-		)
-	}
-	return aggregationColumn, nil
+	return aggregationColumn
 }

pkg/telemetrytraces/condition_builder.go

@@ -35,7 +35,13 @@ func (c *conditionBuilder) conditionFor(
 	sb *sqlbuilder.SelectBuilder,
 ) (string, error) {
 
-	if operator.IsStringSearchOperator() {
+	switch operator {
+	case qbtypes.FilterOperatorContains,
+		qbtypes.FilterOperatorNotContains,
+		qbtypes.FilterOperatorILike,
+		qbtypes.FilterOperatorNotILike,
+		qbtypes.FilterOperatorLike,
+		qbtypes.FilterOperatorNotLike:
 		value = querybuilder.FormatValueForContains(value)
 	}
 

pkg/types/querybuildertypes/querybuildertypesv5/builder_elements.go

@@ -152,9 +152,7 @@ func (f FilterOperator) IsStringSearchOperator() bool {
 		FilterOperatorILike,
 		FilterOperatorNotILike,
 		FilterOperatorLike,
-		FilterOperatorNotLike,
-		FilterOperatorRegexp,
-		FilterOperatorNotRegexp:
+		FilterOperatorNotLike:
 		return true
 	default:
 		return false

pkg/types/querybuildertypes/querybuildertypesv5/qb.go

@@ -12,7 +12,6 @@ import (
 var (
 	ErrColumnNotFound      = errors.Newf(errors.TypeNotFound, errors.CodeNotFound, "field not found")
 	ErrBetweenValues       = errors.Newf(errors.TypeInvalidInput, errors.CodeInvalidInput, "(not) between operator requires two values")
-	ErrBetweenValuesType   = errors.Newf(errors.TypeInvalidInput, errors.CodeInvalidInput, "(not) between operator requires two values of the number type")
 	ErrInValues            = errors.Newf(errors.TypeInvalidInput, errors.CodeInvalidInput, "(not) in operator requires a list of values")
 	ErrUnsupportedOperator = errors.Newf(errors.TypeInvalidInput, errors.CodeInvalidInput, "unsupported operator")
 )

pkg/types/querybuildertypes/querybuildertypesv5/validation.go

@@ -179,6 +179,14 @@ func (q *QueryBuilderQuery[T]) validateAggregations() error {
 					aggId,
 				)
 			}
+			// Validate metric-specific aggregations
+			if err := validateMetricAggregation(v); err != nil {
+				aggId := fmt.Sprintf("aggregation #%d", i+1)
+				if q.Name != "" {
+					aggId = fmt.Sprintf("aggregation #%d in query '%s'", i+1, q.Name)
+				}
+				return wrapValidationError(err, aggId, "invalid metric %s: %s")
+			}
 		case TraceAggregation:
 			if v.Expression == "" {
 				aggId := fmt.Sprintf("aggregation #%d", i+1)
@@ -795,3 +803,85 @@ func validateQueryEnvelope(envelope QueryEnvelope, requestType RequestType) erro
 		)
 	}
 }
+
+// validateMetricAggregation validates metric-specific aggregation parameters
+func validateMetricAggregation(agg MetricAggregation) error {
+	// we can't decide anything here without known temporality
+	if agg.Temporality == metrictypes.Unknown {
+		return nil
+	}
+
+	// Validate that rate/increase are only used with appropriate temporalities
+	if agg.TimeAggregation == metrictypes.TimeAggregationRate || agg.TimeAggregation == metrictypes.TimeAggregationIncrease {
+		// For gauge metrics (Unspecified temporality), rate/increase doesn't make sense
+		if agg.Temporality == metrictypes.Unspecified {
+			return errors.NewInvalidInputf(
+				errors.CodeInvalidInput,
+				"rate/increase aggregation cannot be used with gauge metrics (unspecified temporality)",
+			)
+		}
+	}
+
+	// Validate percentile aggregations are only used with histogram types
+	if agg.SpaceAggregation.IsPercentile() {
+		if agg.Type != metrictypes.HistogramType && agg.Type != metrictypes.ExpHistogramType && agg.Type != metrictypes.SummaryType {
+			return errors.NewInvalidInputf(
+				errors.CodeInvalidInput,
+				"percentile aggregation can only be used with histogram or summary metric types",
+			)
+		}
+	}
+
+	// Validate time aggregation values
+	validTimeAggregations := []metrictypes.TimeAggregation{
+		metrictypes.TimeAggregationUnspecified,
+		metrictypes.TimeAggregationLatest,
+		metrictypes.TimeAggregationSum,
+		metrictypes.TimeAggregationAvg,
+		metrictypes.TimeAggregationMin,
+		metrictypes.TimeAggregationMax,
+		metrictypes.TimeAggregationCount,
+		metrictypes.TimeAggregationCountDistinct,
+		metrictypes.TimeAggregationRate,
+		metrictypes.TimeAggregationIncrease,
+	}
+
+	validTimeAgg := slices.Contains(validTimeAggregations, agg.TimeAggregation)
+	if !validTimeAgg {
+		return errors.NewInvalidInputf(
+			errors.CodeInvalidInput,
+			"invalid time aggregation: %s",
+			agg.TimeAggregation.StringValue(),
+		).WithAdditional(
+			"Valid time aggregations: latest, sum, avg, min, max, count, count_distinct, rate, increase",
+		)
+	}
+
+	// Validate space aggregation values
+	validSpaceAggregations := []metrictypes.SpaceAggregation{
+		metrictypes.SpaceAggregationUnspecified,
+		metrictypes.SpaceAggregationSum,
+		metrictypes.SpaceAggregationAvg,
+		metrictypes.SpaceAggregationMin,
+		metrictypes.SpaceAggregationMax,
+		metrictypes.SpaceAggregationCount,
+		metrictypes.SpaceAggregationPercentile50,
+		metrictypes.SpaceAggregationPercentile75,
+		metrictypes.SpaceAggregationPercentile90,
+		metrictypes.SpaceAggregationPercentile95,
+		metrictypes.SpaceAggregationPercentile99,
+	}
+
+	validSpaceAgg := slices.Contains(validSpaceAggregations, agg.SpaceAggregation)
+	if !validSpaceAgg {
+		return errors.NewInvalidInputf(
+			errors.CodeInvalidInput,
+			"invalid space aggregation: %s",
+			agg.SpaceAggregation.StringValue(),
+		).WithAdditional(
+			"Valid space aggregations: sum, avg, min, max, count, p50, p75, p90, p95, p99",
+		)
+	}
+
+	return nil
+}

tests/integration/src/querier/05_metrics_rate_cumulative_counter.py

@@ -54,17 +54,17 @@ def test_rate_with_steady_values_and_reset(
 
     data = response.json()
     result_values = sorted(get_series_values(data, "A"), key=lambda x: x["timestamp"])
-    assert len(result_values) >= 58
+    assert len(result_values) >= 59
     # the counter reset happened at 31st minute
     assert (
-        result_values[29]["value"] == 0.0167
+        result_values[30]["value"] == 0.0167
     )  # i.e 2/120 i.e 29th to 31st minute changes
     assert (
-        result_values[30]["value"] == 0.133
+        result_values[31]["value"] == 0.133
     )  # i.e 10/60 i.e 31st to 32nd minute changes
     count_of_steady_rate = sum(1 for v in result_values if v["value"] == 0.0833)
     assert (
-        count_of_steady_rate >= 55
+        count_of_steady_rate >= 56
     )  # 59 - (1 reset + 1 high rate + 1 at the beginning)
     # All rates should be non-negative (stale periods = 0 rate)
     for v in result_values:

tests/integration/src/querier/07_metrics_multi_temporality.py

@@ -21,13 +21,8 @@ from fixtures.querier import (
 from fixtures.utils import get_testdata_file_path
 
 MULTI_TEMPORALITY_FILE = get_testdata_file_path("multi_temporality_counters_1h.jsonl")
-MULTI_TEMPORALITY_FILE_10h = get_testdata_file_path(
-    "multi_temporality_counters_10h.jsonl"
-)
-MULTI_TEMPORALITY_FILE_24h = get_testdata_file_path(
-    "multi_temporality_counters_24h.jsonl"
-)
-
+MULTI_TEMPORALITY_FILE_10h = get_testdata_file_path("multi_temporality_counters_10h.jsonl")
+MULTI_TEMPORALITY_FILE_24h = get_testdata_file_path("multi_temporality_counters_24h.jsonl")
 
 @pytest.mark.parametrize(
     "time_aggregation, expected_value_at_31st_minute, expected_value_at_32nd_minute, steady_value",
@@ -44,7 +39,7 @@ def test_with_steady_values_and_reset(
     time_aggregation: str,
     expected_value_at_31st_minute: float,
     expected_value_at_32nd_minute: float,
-    steady_value: float,
+    steady_value: float
 ) -> None:
     now = datetime.now(tz=timezone.utc).replace(second=0, microsecond=0)
     start_ms = int((now - timedelta(minutes=65)).timestamp() * 1000)
@@ -72,24 +67,24 @@ def test_with_steady_values_and_reset(
 
     data = response.json()
     result_values = sorted(get_series_values(data, "A"), key=lambda x: x["timestamp"])
-    assert len(result_values) >= 58
+    assert len(result_values) >= 59
     # the counter reset happened at 31st minute
-    # we skip the rate value for the first data point without previous value
-    assert result_values[29]["value"] == expected_value_at_31st_minute
-    assert result_values[30]["value"] == expected_value_at_32nd_minute
     assert (
-        result_values[38]["value"] == steady_value
-    )  # 38th minute is when cumulative shifts to delta
+        result_values[30]["value"] == expected_value_at_31st_minute
+    )
+    assert (
+        result_values[31]["value"] == expected_value_at_32nd_minute
+    )
+    assert (
+        result_values[39]["value"] == steady_value
+    ) # 39th minute is when cumulative shifts to delta
     count_of_steady_rate = sum(1 for v in result_values if v["value"] == steady_value)
     assert (
-        count_of_steady_rate >= 55
+        count_of_steady_rate >= 56
     )  # 59 - (1 reset + 1 high rate + 1 at the beginning)
     # All rates should be non-negative (stale periods = 0 rate)
     for v in result_values:
-        assert (
-            v["value"] >= 0
-        ), f"{time_aggregation} should not be negative: {v['value']}"
-
+        assert v["value"] >= 0, f"{time_aggregation} should not be negative: {v['value']}"
 
 @pytest.mark.parametrize(
     "time_aggregation, stable_health_value, stable_products_value, stable_checkout_value, spike_checkout_value, stable_orders_value, spike_users_value",
@@ -166,26 +161,20 @@ def test_group_by_endpoint(
     assert (
         len(health_values) >= 58
     ), f"Expected >= 58 values for /health, got {len(health_values)}"
-    count_steady_health = sum(
-        1 for v in health_values if v["value"] == stable_health_value
-    )
+    count_steady_health = sum(1 for v in health_values if v["value"] == stable_health_value) 
     assert (
         count_steady_health >= 57
     ), f"Expected >= 57 steady rate values ({stable_health_value}) for /health, got {count_steady_health}"
     # all /health rates should be state except possibly first/last due to boundaries
     for v in health_values[1:-1]:
-        assert (
-            v["value"] == stable_health_value
-        ), f"Expected /health rate {stable_health_value}, got {v['value']}"
+        assert v["value"] == stable_health_value, f"Expected /health rate {stable_health_value}, got {v['value']}"
 
     # /products: 51 data points with 10-minute gap (t20-t29 missing), steady +20/min
     products_values = endpoint_values["/products"]
     assert (
         len(products_values) >= 49
     ), f"Expected >= 49 values for /products, got {len(products_values)}"
-    count_steady_products = sum(
-        1 for v in products_values if v["value"] == stable_products_value
-    )
+    count_steady_products = sum(1 for v in products_values if v["value"] == stable_products_value)
 
     # most values should be stable, some boundary values differ due to 10-min gap
     assert (
@@ -193,9 +182,7 @@ def test_group_by_endpoint(
     ), f"Expected >= 46 steady rate values ({stable_products_value}) for /products, got {count_steady_products}"
 
     # check that non-stable values are due to gap averaging (should be lower)
-    gap_boundary_values = [
-        v["value"] for v in products_values if v["value"] != stable_products_value
-    ]
+    gap_boundary_values = [v["value"] for v in products_values if v["value"] != stable_products_value]
     for val in gap_boundary_values:
         assert (
             0 < val < stable_products_value
@@ -206,16 +193,12 @@ def test_group_by_endpoint(
     assert (
         len(checkout_values) >= 59
     ), f"Expected >= 59 values for /checkout, got {len(checkout_values)}"
-    count_steady_checkout = sum(
-        1 for v in checkout_values if v["value"] == stable_checkout_value
-    )
+    count_steady_checkout = sum(1 for v in checkout_values if v["value"] == stable_checkout_value)
     assert (
         count_steady_checkout >= 53
     ), f"Expected >= 53 steady {time_aggregation} values ({stable_checkout_value}) for /checkout, got {count_steady_checkout}"
     # check that spike values exist (traffic spike +50/min at t40-t44)
-    count_spike_checkout = sum(
-        1 for v in checkout_values if v["value"] == spike_checkout_value
-    )
+    count_spike_checkout = sum(1 for v in checkout_values if v["value"] == spike_checkout_value)
     assert (
         count_spike_checkout >= 4
     ), f"Expected >= 4 spike {time_aggregation} values ({spike_checkout_value}) for /checkout, got {count_spike_checkout}"
@@ -237,16 +220,12 @@ def test_group_by_endpoint(
     assert (
         len(orders_values) >= 58
     ), f"Expected >= 58 values for /orders, got {len(orders_values)}"
-    count_steady_orders = sum(
-        1 for v in orders_values if v["value"] == stable_orders_value
-    )
+    count_steady_orders = sum(1 for v in orders_values if v["value"] == stable_orders_value)
     assert (
         count_steady_orders >= 55
     ), f"Expected >= 55 steady {time_aggregation} values ({stable_orders_value}) for /orders, got {count_steady_orders}"
     # check for counter reset effects - there should be some non-standard values
-    non_standard_orders = [
-        v["value"] for v in orders_values if v["value"] != stable_orders_value
-    ]
+    non_standard_orders = [v["value"] for v in orders_values if v["value"] != stable_orders_value]
     assert (
         len(non_standard_orders) >= 2
     ), f"Expected >= 2 non-standard values due to counter reset, got {non_standard_orders}"
@@ -273,7 +252,6 @@ def test_group_by_endpoint(
         count_increment_rate >= 8
     ), f"Expected >= 8 increment {time_aggregation} values ({spike_users_value}) for /users, got {count_increment_rate}"
 
-
 @pytest.mark.parametrize(
     "time_aggregation, expected_value_at_30th_minute, expected_value_at_31st_minute, value_at_switch",
     [
@@ -289,7 +267,7 @@ def test_for_service_with_switch(
     time_aggregation: str,
     expected_value_at_30th_minute: float,
     expected_value_at_31st_minute: float,
-    value_at_switch: float,
+    value_at_switch: float
 ) -> None:
     now = datetime.now(tz=timezone.utc).replace(second=0, microsecond=0)
     start_ms = int((now - timedelta(minutes=65)).timestamp() * 1000)
@@ -317,19 +295,22 @@ def test_for_service_with_switch(
 
     data = response.json()
     result_values = sorted(get_series_values(data, "A"), key=lambda x: x["timestamp"])
-    assert len(result_values) >= 59
-    assert result_values[29]["value"] == expected_value_at_30th_minute  # 0.183
-    assert result_values[30]["value"] == expected_value_at_31st_minute  # 0.183
-    assert result_values[37]["value"] == value_at_switch  # 0.25
+    assert len(result_values) >= 60
     assert (
-        result_values[38]["value"] == value_at_switch  # 0.25
-    )  # 39th minute is when cumulative shifts to delta
+        result_values[30]["value"] == expected_value_at_30th_minute #0.183
+    ) 
+    assert (
+        result_values[31]["value"] == expected_value_at_31st_minute # 0.183
+    )
+    assert (
+        result_values[38]["value"] == value_at_switch # 0.25
+    ) 
+    assert (
+        result_values[39]["value"] == value_at_switch # 0.25
+    ) # 39th minute is when cumulative shifts to delta
     # All rates should be non-negative (stale periods = 0 rate)
     for v in result_values:
-        assert (
-            v["value"] >= 0
-        ), f"{time_aggregation} should not be negative: {v['value']}"
-
+        assert v["value"] >= 0, f"{time_aggregation} should not be negative: {v['value']}"
 
 @pytest.mark.parametrize(
     "time_aggregation, expected_value",
@@ -374,7 +355,6 @@ def test_for_week_long_time_range(
     for value in result_values[1:]:
         assert value["value"] == expected_value
 
-
 @pytest.mark.parametrize(
     "time_aggregation, expected_value",
     [