Loki: Use getNormalizedLokiQuery to get queryType (#70237)

* Loki: Use getNormalizedLokiQuery to get queryType

* Simplify

* Remove unused import

* Refactor, improve and add tests

* Update

public/app/plugins/datasource/loki/components/LokiOptionFields.tsx

@@ -8,6 +8,7 @@ import { SelectableValue } from '@grafana/data';
 import { config } from '@grafana/runtime';
 import { InlineFormLabel, RadioButtonGroup, InlineField, Input, Select } from '@grafana/ui';
 
+import { getLokiQueryType } from '../queryUtils';
 import { LokiQuery, LokiQueryType } from '../types';
 
 export interface LokiOptionFieldsProps {
@@ -51,7 +52,7 @@ export const RESOLUTION_OPTIONS: Array<SelectableValue<number>> = [DEFAULT_RESOL
 export function LokiOptionFields(props: LokiOptionFieldsProps) {
   const { lineLimitValue, resolution, onRunQuery, runOnBlur, onChange } = props;
   const query = props.query ?? {};
-  let queryType = query.queryType ?? (query.instant ? LokiQueryType.Instant : LokiQueryType.Range);
+  const queryType = getLokiQueryType(query);
 
   function onChangeQueryLimit(value: string) {
     const nextQuery = { ...query, maxLines: preprocessMaxLines(value) };

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

@@ -1,6 +1,6 @@
 import {
   getHighlighterExpressionsFromQuery,
-  getNormalizedLokiQuery,
+  getLokiQueryType,
   isLogsQuery,
   isQueryWithLabelFormat,
   isQueryWithParser,
@@ -11,6 +11,7 @@ import {
   requestSupportsSplitting,
   isQueryWithDistinct,
   isQueryWithRangeVariable,
+  getNormalizedLokiQuery,
 } from './queryUtils';
 import { LokiQuery, LokiQueryType } from './types';
 
@@ -116,50 +117,69 @@ describe('getHighlighterExpressionsFromQuery', () => {
 });
 
 describe('getNormalizedLokiQuery', () => {
-  function expectNormalized(inputProps: Object, outputQueryType: LokiQueryType) {
-    const input: LokiQuery = { refId: 'A', expr: 'test1', ...inputProps };
+  it('removes deprecated instant property', () => {
+    const input: LokiQuery = { refId: 'A', expr: 'test1', instant: true };
     const output = getNormalizedLokiQuery(input);
-    expect(output).toStrictEqual({ refId: 'A', expr: 'test1', queryType: outputQueryType });
+    expect(output).toStrictEqual({ refId: 'A', expr: 'test1', queryType: LokiQueryType.Instant });
+  });
+
+  it('removes deprecated range property', () => {
+    const input: LokiQuery = { refId: 'A', expr: 'test1', range: true };
+    const output = getNormalizedLokiQuery(input);
+    expect(output).toStrictEqual({ refId: 'A', expr: 'test1', queryType: LokiQueryType.Range });
+  });
+
+  it('removes deprecated range and instant properties if query with queryType', () => {
+    const input: LokiQuery = { refId: 'A', expr: 'test1', range: true, instant: false, queryType: LokiQueryType.Range };
+    const output = getNormalizedLokiQuery(input);
+    expect(output).toStrictEqual({ refId: 'A', expr: 'test1', queryType: LokiQueryType.Range });
+  });
+});
+describe('getLokiQueryType', () => {
+  function expectCorrectQueryType(inputProps: Object, outputQueryType: LokiQueryType) {
+    const input: LokiQuery = { refId: 'A', expr: 'test1', ...inputProps };
+    const output = getLokiQueryType(input);
+    expect(output).toStrictEqual(outputQueryType);
   }
 
   it('handles no props case', () => {
-    expectNormalized({}, LokiQueryType.Range);
+    expectCorrectQueryType({}, LokiQueryType.Range);
   });
 
   it('handles old-style instant case', () => {
-    expectNormalized({ instant: true, range: false }, LokiQueryType.Instant);
+    expectCorrectQueryType({ instant: true, range: false }, LokiQueryType.Instant);
   });
 
   it('handles old-style range case', () => {
-    expectNormalized({ instant: false, range: true }, LokiQueryType.Range);
+    expectCorrectQueryType({ instant: false, range: true }, LokiQueryType.Range);
   });
 
   it('handles new+old style instant', () => {
-    expectNormalized({ instant: true, range: false, queryType: LokiQueryType.Range }, LokiQueryType.Range);
+    expectCorrectQueryType({ instant: true, range: false, queryType: LokiQueryType.Range }, LokiQueryType.Range);
   });
 
   it('handles new+old style range', () => {
-    expectNormalized({ instant: false, range: true, queryType: LokiQueryType.Instant }, LokiQueryType.Instant);
+    expectCorrectQueryType({ instant: false, range: true, queryType: LokiQueryType.Instant }, LokiQueryType.Instant);
   });
 
   it('handles new<>old conflict (new wins), range', () => {
-    expectNormalized({ instant: false, range: true, queryType: LokiQueryType.Range }, LokiQueryType.Range);
+    expectCorrectQueryType({ instant: false, range: true, queryType: LokiQueryType.Range }, LokiQueryType.Range);
   });
 
   it('handles new<>old conflict (new wins), instant', () => {
-    expectNormalized({ instant: true, range: false, queryType: LokiQueryType.Instant }, LokiQueryType.Instant);
+    expectCorrectQueryType({ instant: true, range: false, queryType: LokiQueryType.Instant }, LokiQueryType.Instant);
   });
 
   it('handles invalid new, range', () => {
-    expectNormalized({ queryType: 'invalid' }, LokiQueryType.Range);
+    expectCorrectQueryType({ queryType: 'invalid' }, LokiQueryType.Range);
   });
 
   it('handles invalid new, when old-range exists, use old', () => {
-    expectNormalized({ instant: false, range: true, queryType: 'invalid' }, LokiQueryType.Range);
+    expectCorrectQueryType({ instant: false, range: true, queryType: 'invalid' }, LokiQueryType.Range);
   });
 
   it('handles invalid new, when old-instant exists, use old', () => {
-    expectNormalized({ instant: true, range: false, queryType: 'invalid' }, LokiQueryType.Instant);
+    expectCorrectQueryType({ instant: true, range: false, queryType: 'invalid' }, LokiQueryType.Instant);
   });
 });
 

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

@@ -84,32 +84,32 @@ export function getHighlighterExpressionsFromQuery(input: string): string[] {
   return results;
 }
 
-// we are migrating from `.instant` and `.range` to `.queryType`
-// this function returns a new query object that:
-// - has `.queryType`
-// - does not have `.instant`
-// - does not have `.range`
 export function getNormalizedLokiQuery(query: LokiQuery): LokiQuery {
-  //  if queryType field contains invalid data we behave as if the queryType is empty
+  const queryType = getLokiQueryType(query);
+  // instant and range are deprecated, we want to remove them
+  const { instant, range, ...rest } = query;
+  return { ...rest, queryType };
+}
+
+export function getLokiQueryType(query: LokiQuery): LokiQueryType {
+  // we are migrating from `.instant` and `.range` to `.queryType`
+  // this function returns the correct query type
   const { queryType } = query;
   const hasValidQueryType =
     queryType === LokiQueryType.Range || queryType === LokiQueryType.Instant || queryType === LokiQueryType.Stream;
 
   // if queryType exists, it is respected
   if (hasValidQueryType) {
-    const { instant, range, ...rest } = query;
-    return rest;
+    return queryType;
   }
 
   // if no queryType, and instant===true, it's instant
   if (query.instant === true) {
-    const { instant, range, ...rest } = query;
-    return { ...rest, queryType: LokiQueryType.Instant };
+    return LokiQueryType.Instant;
   }
 
   // otherwise it is range
-  const { instant, range, ...rest } = query;
-  return { ...rest, queryType: LokiQueryType.Range };
+  return LokiQueryType.Range;
 }
 
 const tagsToObscure = ['String', 'Identifier', 'LineComment', 'Number'];

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

@@ -8,7 +8,7 @@ import { AutoSizeInput, RadioButtonGroup, Select } from '@grafana/ui';
 import { QueryOptionGroup } from 'app/plugins/datasource/prometheus/querybuilder/shared/QueryOptionGroup';
 
 import { preprocessMaxLines, queryTypeOptions, RESOLUTION_OPTIONS } from '../../components/LokiOptionFields';
-import { isLogsQuery } from '../../queryUtils';
+import { getLokiQueryType, isLogsQuery } from '../../queryUtils';
 import { LokiQuery, LokiQueryType, QueryStats } from '../../types';
 
 export interface Props {
@@ -67,7 +67,7 @@ export const LokiQueryBuilderOptions = React.memo<Props>(
       onRunQuery();
     }
 
-    const queryType = query.queryType ?? (query.instant ? LokiQueryType.Instant : LokiQueryType.Range);
+    const queryType = getLokiQueryType(query);
     const isLogQuery = isLogsQuery(query.expr);
 
     const isValidStep = useMemo(() => {