Loki: Remove`TimeSrv` dependency (#78642)

* Loki: Remove  dependency

* Update loadUnwrapOptions

public/app/plugins/datasource/loki/LanguageProvider.test.ts

@@ -407,7 +407,11 @@ describe('Query imports', () => {
           maxLines: DEFAULT_MAX_LINES_SAMPLE,
           refId: 'data-samples',
         },
-        undefined
+        // mocked default time range
+        expect.objectContaining({
+          from: 0,
+          to: 1,
+        })
       );
     });
 
@@ -428,7 +432,11 @@ describe('Query imports', () => {
           maxLines: 5,
           refId: 'data-samples',
         },
-        undefined
+        // mocked default time range
+        expect.objectContaining({
+          from: 0,
+          to: 1,
+        })
       );
     });
 

public/app/plugins/datasource/loki/LanguageProvider.ts

@@ -267,7 +267,7 @@ export default class LokiLanguageProvider extends LanguageProvider {
         refId: 'data-samples',
         maxLines: options?.maxLines || DEFAULT_MAX_LINES_SAMPLE,
       },
-      options?.timeRange
+      options?.timeRange ?? this.getDefaultTimeRange()
     );
 
     if (!series.length) {

public/app/plugins/datasource/loki/datasource.test.ts

@@ -1474,26 +1474,26 @@ describe('LokiDatasource', () => {
     });
     it('ignores invalid queries', () => {
       const spy = jest.spyOn(ds, 'query');
-      ds.getDataSamples({ expr: 'not a query', refId: 'A' });
+      ds.getDataSamples({ expr: 'not a query', refId: 'A' }, mockTimeRange);
       expect(spy).not.toHaveBeenCalled();
     });
     it('ignores metric queries', () => {
       const spy = jest.spyOn(ds, 'query');
-      ds.getDataSamples({ expr: 'count_over_time({a="b"}[1m])', refId: 'A' });
+      ds.getDataSamples({ expr: 'count_over_time({a="b"}[1m])', refId: 'A' }, mockTimeRange);
       expect(spy).not.toHaveBeenCalled();
     });
     it('uses the current interval in the request', () => {
       const spy = jest.spyOn(ds, 'query').mockImplementation(() => of({} as DataQueryResponse));
-      ds.getDataSamples({ expr: '{job="bar"}', refId: 'A' });
+      ds.getDataSamples({ expr: '{job="bar"}', refId: 'A' }, mockTimeRange);
       expect(spy).toHaveBeenCalledWith(
         expect.objectContaining({
-          range: ds.getTimeRange(),
+          range: mockTimeRange,
         })
       );
     });
     it('hides the request from the inspector', () => {
       const spy = jest.spyOn(ds, 'query').mockImplementation(() => of({} as DataQueryResponse));
-      ds.getDataSamples({ expr: '{job="bar"}', refId: 'A' });
+      ds.getDataSamples({ expr: '{job="bar"}', refId: 'A' }, mockTimeRange);
       expect(spy).toHaveBeenCalledWith(
         expect.objectContaining({
           hideFromInspector: true,
@@ -1503,7 +1503,7 @@ describe('LokiDatasource', () => {
     });
     it('sets the supporting query type in the request', () => {
       const spy = jest.spyOn(ds, 'query').mockImplementation(() => of({} as DataQueryResponse));
-      ds.getDataSamples({ expr: '{job="bar"}', refId: 'A' });
+      ds.getDataSamples({ expr: '{job="bar"}', refId: 'A' }, mockTimeRange);
       expect(spy).toHaveBeenCalledWith(
         expect.objectContaining({
           targets: [expect.objectContaining({ supportingQueryType: SupportingQueryType.DataSample })],
@@ -1828,18 +1828,18 @@ describe('makeStatsRequest', () => {
   });
 });
 
-describe('getTimeRange*()', () => {
-  it('exposes the current time range', () => {
+describe('getTimeRangeParams()', () => {
+  it('turns time range into a Loki range parameters', () => {
     const ds = createLokiDatasource();
-    const timeRange = ds.getTimeRange();
-
-    expect(timeRange.from).toBeDefined();
-    expect(timeRange.to).toBeDefined();
-  });
-
-  it('exposes time range as params', () => {
-    const ds = createLokiDatasource();
-    const params = ds.getTimeRangeParams();
+    const range = {
+      from: dateTime(1524650400000),
+      to: dateTime(1524654000000),
+      raw: {
+        from: 'now-1h',
+        to: 'now',
+      },
+    };
+    const params = ds.getTimeRangeParams(range);
 
     // Returns a very big integer, so we stringify it for the assertion
     expect(JSON.stringify(params)).toEqual('{"start":1524650400000000000,"end":1524654000000000000}');

public/app/plugins/datasource/loki/datasource.ts

@@ -45,7 +45,6 @@ import {
 import { Duration } from '@grafana/lezer-logql';
 import { BackendSrvRequest, config, DataSourceWithBackend, getTemplateSrv, TemplateSrv } from '@grafana/runtime';
 import { DataQuery } from '@grafana/schema';
-import { getTimeSrv, TimeSrv } from 'app/features/dashboard/services/TimeSrv';
 
 import { queryLogsSample, queryLogsVolume } from '../../../features/logs/logsModel';
 import { getLogLevelFromKey } from '../../../features/logs/utils';
@@ -152,8 +151,7 @@ export class LokiDatasource
 
   constructor(
     private instanceSettings: DataSourceInstanceSettings<LokiOptions>,
-    private readonly templateSrv: TemplateSrv = getTemplateSrv(),
-    private readonly timeSrv: TimeSrv = getTimeSrv()
+    private readonly templateSrv: TemplateSrv = getTemplateSrv()
   ) {
     super(instanceSettings);
 
@@ -455,21 +453,12 @@ export class LokiDatasource
     return query.expr;
   }
 
-  /**
-   * Retrieve the current time range.
-   * @returns The current time range as provided by the timeSrv.
-   */
-  getTimeRange() {
-    return this.timeSrv.timeRange();
-  }
-
   /**
    * Given a time range, returns it as Loki parameters.
    * @returns An object containing the start and end times in nanoseconds since the Unix epoch.
    */
-  getTimeRangeParams(timeRange?: TimeRange) {
-    const range = timeRange ?? this.getTimeRange();
-    return { start: range.from.valueOf() * NS_IN_MS, end: range.to.valueOf() * NS_IN_MS };
+  getTimeRangeParams(timeRange: TimeRange) {
+    return { start: timeRange.from.valueOf() * NS_IN_MS, end: timeRange.to.valueOf() * NS_IN_MS };
   }
 
   /**
@@ -734,7 +723,7 @@ export class LokiDatasource
    * Currently, it works for logs data only.
    * @returns A Promise that resolves to an array of DataFrames containing data samples.
    */
-  async getDataSamples(query: LokiQuery, timeRange?: TimeRange): Promise<DataFrame[]> {
+  async getDataSamples(query: LokiQuery, timeRange: TimeRange): Promise<DataFrame[]> {
     // Currently works only for logs sample
     if (!isLogsQuery(query.expr) || isQueryWithError(this.interpolateString(query.expr, placeHolderScopedVars))) {
       return [];
@@ -748,8 +737,7 @@ export class LokiDatasource
       supportingQueryType: SupportingQueryType.DataSample,
     };
 
-    const range = timeRange ?? this.getTimeRange();
-    const request = makeRequest(lokiLogsQuery, range, CoreApp.Unknown, REF_ID_DATA_SAMPLES, true);
+    const request = makeRequest(lokiLogsQuery, timeRange, CoreApp.Unknown, REF_ID_DATA_SAMPLES, true);
     return await lastValueFrom(this.query(request).pipe(switchMap((res) => of(res.data))));
   }
 

public/app/plugins/datasource/loki/querybuilder/components/LokiQueryBuilder.tsx

@@ -99,13 +99,14 @@ export const LokiQueryBuilder = React.memo<Props>(
     useEffect(() => {
       const onGetSampleData = async () => {
         const lokiQuery = { expr: lokiQueryModeller.renderQuery(query), refId: 'data-samples' };
-        const series = await datasource.getDataSamples(lokiQuery);
-        const sampleData = { series, state: LoadingState.Done, timeRange: getDefaultTimeRange() };
+        const range = timeRange ?? getDefaultTimeRange();
+        const series = await datasource.getDataSamples(lokiQuery, range);
+        const sampleData = { series, state: LoadingState.Done, timeRange: range };
         setSampleData(sampleData);
       };
 
       onGetSampleData().catch(console.error);
-    }, [datasource, query]);
+    }, [datasource, query, timeRange]);
 
     const lang = { grammar: logqlGrammar, name: 'logql' };
     return (

public/app/plugins/datasource/loki/querybuilder/components/UnwrapParamEditor.tsx

@@ -1,6 +1,6 @@
 import React, { useState } from 'react';
 
-import { SelectableValue, toOption } from '@grafana/data';
+import { SelectableValue, getDefaultTimeRange, toOption } from '@grafana/data';
 import { Select } from '@grafana/ui';
 
 import { getOperationParamId } from '../../../prometheus/querybuilder/shared/operationUtils';
@@ -19,6 +19,7 @@ export function UnwrapParamEditor({
   value,
   query,
   datasource,
+  timeRange,
 }: QueryBuilderOperationParamEditorProps) {
   const [state, setState] = useState<{
     options?: Array<SelectableValue<string>>;
@@ -32,7 +33,7 @@ export function UnwrapParamEditor({
         // This check is always true, we do it to make typescript happy
         if (datasource instanceof LokiDatasource) {
           setState({ isLoading: true });
-          const options = await loadUnwrapOptions(query, datasource);
+          const options = await loadUnwrapOptions(query, datasource, timeRange);
           setState({ options, isLoading: undefined });
         }
       }}
@@ -53,7 +54,8 @@ export function UnwrapParamEditor({
 
 async function loadUnwrapOptions(
   query: LokiVisualQuery,
-  datasource: LokiDatasource
+  datasource: LokiDatasource,
+  timeRange = getDefaultTimeRange()
 ): Promise<Array<SelectableValue<string>>> {
   const queryExpr = lokiQueryModeller.renderQuery(query);
   const logExpr = getLogQueryFromMetricsQuery(queryExpr);
@@ -61,7 +63,7 @@ async function loadUnwrapOptions(
     return [];
   }
 
-  const samples = await datasource.getDataSamples({ expr: logExpr, refId: 'unwrap_samples' });
+  const samples = await datasource.getDataSamples({ expr: logExpr, refId: 'unwrap_samples' }, timeRange);
   const unwrapLabels = extractUnwrapLabelKeysFromDataFrame(samples[0]);
 
   const labelOptions = unwrapLabels.map((label) => ({

public/app/plugins/datasource/prometheus/querybuilder/shared/OperationEditor.tsx

@@ -2,7 +2,7 @@ import { css, cx } from '@emotion/css';
 import React, { useEffect, useId, useState } from 'react';
 import { Draggable } from 'react-beautiful-dnd';
 
-import { DataSourceApi, GrafanaTheme2 } from '@grafana/data';
+import { DataSourceApi, GrafanaTheme2, TimeRange } from '@grafana/data';
 import { Button, Icon, InlineField, Tooltip, useTheme2, Stack } from '@grafana/ui';
 import { isConflictingFilter } from 'app/plugins/datasource/loki/querybuilder/operationUtils';
 import { LokiOperationId } from 'app/plugins/datasource/loki/querybuilder/types';
@@ -29,6 +29,7 @@ export interface Props {
   onRunQuery: () => void;
   flash?: boolean;
   highlight?: boolean;
+  timeRange?: TimeRange;
 }
 
 export function OperationEditor({
@@ -42,6 +43,7 @@ export function OperationEditor({
   datasource,
   flash,
   highlight,
+  timeRange,
 }: Props) {
   const def = queryModeller.getOperationDef(operation.id);
   const shouldFlash = useFlash(flash);
@@ -106,6 +108,7 @@ export function OperationEditor({
               onRunQuery={onRunQuery}
               query={query}
               datasource={datasource}
+              timeRange={timeRange}
             />
             {paramDef.restParam && (operation.params.length > def.params.length || paramDef.optional) && (
               <Button

public/app/plugins/datasource/prometheus/querybuilder/shared/OperationList.tsx

@@ -3,7 +3,7 @@ import React, { useState } from 'react';
 import { DragDropContext, Droppable, DropResult } from 'react-beautiful-dnd';
 import { useMountedState, usePrevious } from 'react-use';
 
-import { DataSourceApi, GrafanaTheme2 } from '@grafana/data';
+import { DataSourceApi, GrafanaTheme2, TimeRange } from '@grafana/data';
 import { Button, Cascader, CascaderOption, useStyles2, Stack } from '@grafana/ui';
 
 import { OperationEditor } from './OperationEditor';
@@ -17,6 +17,7 @@ export interface Props<T extends QueryWithOperations> {
   queryModeller: VisualQueryModeller;
   explainMode?: boolean;
   highlightedOp?: QueryBuilderOperation;
+  timeRange?: TimeRange;
 }
 
 export function OperationList<T extends QueryWithOperations>({
@@ -26,6 +27,7 @@ export function OperationList<T extends QueryWithOperations>({
   onChange,
   onRunQuery,
   highlightedOp,
+  timeRange,
 }: Props<T>) {
   const styles = useStyles2(getStyles);
   const { operations } = query;
@@ -104,6 +106,7 @@ export function OperationList<T extends QueryWithOperations>({
                         onRunQuery={onRunQuery}
                         flash={opsToHighlight[index]}
                         highlight={highlightedOp === op}
+                        timeRange={timeRange}
                       />
                     );
                   })}

public/app/plugins/datasource/prometheus/querybuilder/shared/types.ts

@@ -4,7 +4,7 @@
 
 import { ComponentType } from 'react';
 
-import { DataSourceApi, RegistryItem, SelectableValue } from '@grafana/data';
+import { DataSourceApi, RegistryItem, SelectableValue, TimeRange } from '@grafana/data';
 
 export interface QueryBuilderLabelFilter {
   label: string;
@@ -92,6 +92,7 @@ export interface QueryBuilderOperationParamEditorProps {
   operationId: string;
   query: any;
   datasource: DataSourceApi;
+  timeRange?: TimeRange;
   onChange: (index: number, value: QueryBuilderOperationParamValue) => void;
   onRunQuery: () => void;
 }