fix: query builder in metrics explorer picking up wrong datasource (#7676)

* fix: query builder in metrics explorer picking up wrong datasource

* chore: add UTs

---------

Co-authored-by: Srikanth Chekuri <srikanth.chekuri92@gmail.com>

frontend/src/container/MetricsExplorer/Explorer/Explorer.tsx

@@ -12,6 +12,7 @@ import DateTimeSelector from 'container/TopNav/DateTimeSelectionV2';
 import { useUpdateDashboard } from 'hooks/dashboard/useUpdateDashboard';
 import { addEmptyWidgetInDashboardJSONWithQuery } from 'hooks/dashboard/utils';
 import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
+import { useShareBuilderUrl } from 'hooks/queryBuilder/useShareBuilderUrl';
 import { useNotifications } from 'hooks/useNotifications';
 import { useSafeNavigate } from 'hooks/useSafeNavigate';
 import ErrorBoundaryFallback from 'pages/ErrorBoundaryFallback/ErrorBoundaryFallback';
@@ -57,6 +58,8 @@ function Explorer(): JSX.Element {
 		[currentQuery, updateAllQueriesOperators],
 	);
 
+	useShareBuilderUrl(exportDefaultQuery);
+
 	const handleExport = useCallback(
 		(dashboard: Dashboard | null): void => {
 			if (!dashboard) return;

frontend/src/container/MetricsExplorer/Explorer/__tests__/Explorer.test.tsx

@@ -0,0 +1,101 @@
+import { render } from '@testing-library/react';
+import { initialQueriesMap, PANEL_TYPES } from 'constants/queryBuilder';
+import ROUTES from 'constants/routes';
+import * as useOptionsMenuHooks from 'container/OptionsMenu';
+import * as useUpdateDashboardHooks from 'hooks/dashboard/useUpdateDashboard';
+import * as useQueryBuilderHooks from 'hooks/queryBuilder/useQueryBuilder';
+import { Provider } from 'react-redux';
+import { MemoryRouter } from 'react-router-dom';
+import store from 'store';
+import { DataSource } from 'types/common/queryBuilder';
+
+import Explorer from '../Explorer';
+
+jest.mock('react-router-dom', () => ({
+	...jest.requireActual('react-router-dom'),
+	useLocation: (): { pathname: string } => ({
+		pathname: `${ROUTES.METRICS_EXPLORER_EXPLORER}`,
+	}),
+}));
+jest.mock('hooks/useSafeNavigate', () => ({
+	useSafeNavigate: (): any => ({
+		safeNavigate: jest.fn(),
+	}),
+}));
+jest.mock('hooks/useNotifications', () => ({
+	useNotifications: (): any => ({
+		notifications: {
+			error: jest.fn(),
+		},
+	}),
+}));
+jest.mock('uplot', () => {
+	const paths = {
+		spline: jest.fn(),
+		bars: jest.fn(),
+	};
+	const uplotMock = jest.fn(() => ({
+		paths,
+	}));
+	return {
+		paths,
+		default: uplotMock,
+	};
+});
+jest.mock('react-redux', () => ({
+	...jest.requireActual('react-redux'),
+	useSelector: (): any => ({
+		globalTime: {
+			selectedTime: {
+				startTime: 1713734400000,
+				endTime: 1713738000000,
+			},
+			maxTime: 1713738000000,
+			minTime: 1713734400000,
+		},
+	}),
+}));
+
+jest.spyOn(useUpdateDashboardHooks, 'useUpdateDashboard').mockReturnValue({
+	mutate: jest.fn(),
+	isLoading: false,
+} as any);
+
+jest.spyOn(useOptionsMenuHooks, 'useOptionsMenu').mockReturnValue({
+	selectColumns: [],
+} as any);
+
+const mockUpdateAllQueriesOperators = jest.fn();
+const mockUseQueryBuilderData = {
+	handleRunQuery: jest.fn(),
+	stagedQuery: initialQueriesMap[DataSource.METRICS],
+	updateAllQueriesOperators: mockUpdateAllQueriesOperators,
+	currentQuery: initialQueriesMap[DataSource.METRICS],
+	resetQuery: jest.fn(),
+	redirectWithQueryBuilderData: jest.fn(),
+};
+jest.spyOn(useQueryBuilderHooks, 'useQueryBuilder').mockReturnValue({
+	mockUseQueryBuilderData,
+} as any);
+
+describe('Explorer', () => {
+	it('should render Explorer query builder with metrics datasource selected', () => {
+		jest.spyOn(useQueryBuilderHooks, 'useQueryBuilder').mockReturnValue({
+			...mockUseQueryBuilderData,
+			// Initially have a different datasource
+			stagedQuery: initialQueriesMap[DataSource.TRACES],
+		} as any);
+		render(
+			<MemoryRouter>
+				<Provider store={store}>
+					<Explorer />
+				</Provider>
+			</MemoryRouter>,
+		);
+		expect(mockUpdateAllQueriesOperators).toHaveBeenCalledWith(
+			initialQueriesMap[DataSource.METRICS],
+			PANEL_TYPES.TIME_SERIES,
+			DataSource.METRICS,
+		);
+	});
+});

frontend/src/container/MetricsExplorer/Summary/Summary.tsx

@@ -1,16 +1,19 @@
 import './Summary.styles.scss';
 
 import * as Sentry from '@sentry/react';
+import { initialQueriesMap, PANEL_TYPES } from 'constants/queryBuilder';
 import { usePageSize } from 'container/InfraMonitoringK8s/utils';
 import { useGetMetricsList } from 'hooks/metricsExplorer/useGetMetricsList';
 import { useGetMetricsTreeMap } from 'hooks/metricsExplorer/useGetMetricsTreeMap';
 import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
 import { useQueryOperations } from 'hooks/queryBuilder/useQueryBuilderOperations';
+import { useShareBuilderUrl } from 'hooks/queryBuilder/useShareBuilderUrl';
 import ErrorBoundaryFallback from 'pages/ErrorBoundaryFallback/ErrorBoundaryFallback';
 import { useCallback, useMemo, useState } from 'react';
 import { useSelector } from 'react-redux';
 import { AppState } from 'store/reducers';
 import { TagFilter } from 'types/api/queryBuilder/queryBuilderData';
+import { DataSource } from 'types/common/queryBuilder';
 import { GlobalReducer } from 'types/reducer/globalTime';
 
 import InspectModal from '../Inspect';
@@ -25,13 +28,15 @@ import {
 	getMetricsListQuery,
 } from './utils';
 
+const DEFAULT_ORDER_BY: OrderByPayload = {
+	columnName: 'samples',
+	order: 'desc',
+};
+
 function Summary(): JSX.Element {
 	const { pageSize, setPageSize } = usePageSize('metricsExplorer');
 	const [currentPage, setCurrentPage] = useState(1);
-	const [orderBy, setOrderBy] = useState<OrderByPayload>({
-		columnName: 'samples',
-		order: 'desc',
-	});
+	const [orderBy, setOrderBy] = useState<OrderByPayload>(DEFAULT_ORDER_BY);
 	const [heatmapView, setHeatmapView] = useState<TreemapViewType>(
 		TreemapViewType.TIMESERIES,
 	);
@@ -45,7 +50,31 @@ function Summary(): JSX.Element {
 		(state) => state.globalTime,
 	);
 
-	const { currentQuery } = useQueryBuilder();
+	const { currentQuery, updateAllQueriesOperators } = useQueryBuilder();
+
+	const defaultQuery = useMemo(() => {
+		const query = updateAllQueriesOperators(
+			initialQueriesMap.metrics,
+			PANEL_TYPES.LIST,
+			DataSource.METRICS,
+		);
+
+		return {
+			...query,
+			builder: {
+				...query.builder,
+				queryData: [
+					{
+						...query.builder.queryData[0],
+						orderBy: [DEFAULT_ORDER_BY],
+					},
+				],
+			},
+		};
+	}, [updateAllQueriesOperators]);
+
+	useShareBuilderUrl(defaultQuery);
+
 	const queryFilters = useMemo(
 		() =>
 			currentQuery?.builder?.queryData[0]?.filters || {

frontend/src/pages/MetricsExplorer/MetricsExplorerPage.tsx

@@ -2,12 +2,8 @@ import './MetricsExplorerPage.styles.scss';
 
 import RouteTab from 'components/RouteTab';
 import { TabRoutes } from 'components/RouteTab/types';
-import { initialQueriesMap } from 'constants/queryBuilder';
-import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
 import history from 'lib/history';
-import { useLayoutEffect, useMemo } from 'react';
 import { useLocation } from 'react-use';
-import { DataSource } from 'types/common/queryBuilder';
 
 import { Explorer, Summary } from './constants';
 
@@ -16,14 +12,6 @@ function MetricsExplorerPage(): JSX.Element {
 
 	const routes: TabRoutes[] = [Summary, Explorer];
 
-	const initialQuery = useMemo(() => initialQueriesMap[DataSource.METRICS], []);
-	const { resetQuery } = useQueryBuilder();
-
-	useLayoutEffect(() => {
-		resetQuery(initialQuery);
-		// eslint-disable-next-line react-hooks/exhaustive-deps
-	}, []);
-
 	return (
 		<div className="metrics-explorer-page">
 			<RouteTab routes={routes} activeKey={pathname} history={history} />