Alerting: Remove threshold as default expression for grafana-managed recording rules (#94949)

* remove threshold as default expression for grafana-managed recording rule

* fix

* remove eslint disable line

public/app/features/alerting/unified/components/expressions/Expression.tsx

@@ -20,6 +20,8 @@ import {
 import { AlertQuery, PromAlertingRuleState } from 'app/types/unified-alerting-dto';
 
 import { usePagination } from '../../hooks/usePagination';
+import { RuleFormValues } from '../../types/rule-form';
+import { isGrafanaRecordingRuleByType } from '../../utils/rules';
 import { PopupCard } from '../HoverCard';
 import { Spacer } from '../Spacer';
 import { AlertStateTag } from '../rules/AlertStateTag';
@@ -58,7 +60,9 @@ export const Expression: FC<ExpressionProps> = ({
 
   const queryType = query?.type;
 
-  const { setError, clearErrors } = useFormContext();
+  const { setError, clearErrors, watch } = useFormContext<RuleFormValues>();
+  const type = watch('type');
+  const isGrafanaRecordingRule = type ? isGrafanaRecordingRuleByType(type) : false;
 
   const onQueriesValidationError = useCallback(
     (errorMsg: string | undefined) => {
@@ -158,20 +162,25 @@ export const Expression: FC<ExpressionProps> = ({
         </div>
         {hasResults && (
           <>
-            <ExpressionResult series={series} isAlertCondition={isAlertCondition} />
+            <ExpressionResult
+              series={series}
+              isAlertCondition={isAlertCondition}
+              isRecordingRule={isGrafanaRecordingRule}
+            />
+            {!isGrafanaRecordingRule && (
+              <div className={styles.footer}>
+                <Stack direction="row" alignItems="center">
+                  <Spacer />
 
-            <div className={styles.footer}>
-              <Stack direction="row" alignItems="center">
-                <Spacer />
-
-                <PreviewSummary
-                  isCondition={Boolean(isAlertCondition)}
-                  firing={groupedByState[PromAlertingRuleState.Firing].length}
-                  normal={groupedByState[PromAlertingRuleState.Inactive].length}
-                  seriesCount={seriesCount}
-                />
-              </Stack>
-            </div>
+                  <PreviewSummary
+                    isCondition={Boolean(isAlertCondition)}
+                    firing={groupedByState[PromAlertingRuleState.Firing].length}
+                    normal={groupedByState[PromAlertingRuleState.Inactive].length}
+                    seriesCount={seriesCount}
+                  />
+                </Stack>
+              </div>
+            )}
           </>
         )}
       </div>
@@ -182,9 +191,10 @@ export const Expression: FC<ExpressionProps> = ({
 interface ExpressionResultProps {
   series: DataFrame[];
   isAlertCondition?: boolean;
+  isRecordingRule?: boolean;
 }
 export const PAGE_SIZE = 20;
-export const ExpressionResult: FC<ExpressionResultProps> = ({ series, isAlertCondition }) => {
+export const ExpressionResult: FC<ExpressionResultProps> = ({ series, isAlertCondition, isRecordingRule = false }) => {
   const { pageItems, previousPage, nextPage, numberOfPages, pageStart, pageEnd } = usePagination(series, 1, PAGE_SIZE);
   const styles = useStyles2(getStyles);
 
@@ -212,7 +222,13 @@ export const ExpressionResult: FC<ExpressionResultProps> = ({ series, isAlertCon
         !isTimeSeriesResults &&
         pageItems.map((frame, index) => (
           // There's no way to uniquely identify a frame that doesn't cause render bugs :/ (Gilles)
-          <FrameRow key={uniqueId()} frame={frame} index={pageStart + index} isAlertCondition={isAlertCondition} />
+          <FrameRow
+            key={uniqueId()}
+            frame={frame}
+            index={pageStart + index}
+            isAlertCondition={isAlertCondition}
+            isRecordingRule={isRecordingRule}
+          />
         ))}
       {emptyResults && <div className={cx(styles.expression.noData, styles.mutedText)}>No data</div>}
       {shouldShowPagination && (
@@ -353,6 +369,7 @@ const Header: FC<HeaderProps> = ({
 interface FrameProps extends Pick<ExpressionProps, 'isAlertCondition'> {
   frame: DataFrame;
   index: number;
+  isRecordingRule?: boolean;
 }
 
 const OpeningBracket = () => <span>{'{'}</span>;
@@ -361,7 +378,7 @@ const ClosingBracket = () => <span>{'}'}</span>;
 const Quote = () => <span>&quot;</span>;
 const Equals = () => <span>{'='}</span>;
 
-const FrameRow: FC<FrameProps> = ({ frame, index, isAlertCondition }) => {
+function FrameRow({ frame, index, isAlertCondition, isRecordingRule }: FrameProps) {
   const styles = useStyles2(getStyles);
 
   const name = getSeriesName(frame) || 'Series ' + index;
@@ -374,6 +391,7 @@ const FrameRow: FC<FrameProps> = ({ frame, index, isAlertCondition }) => {
   const showNormal = isAlertCondition && value === 0;
 
   const title = `${hasLabels ? '' : name}${hasLabels ? `{${formatLabels(labelsRecord)}}` : ''}`;
+  const shouldRenderSumary = !isRecordingRule;
 
   return (
     <div className={styles.expression.resultsRow}>
@@ -401,14 +419,18 @@ const FrameRow: FC<FrameProps> = ({ frame, index, isAlertCondition }) => {
           </Text>
         </div>
         <div className={styles.expression.resultValue}>{value}</div>
-        {showFiring && <AlertStateTag state={PromAlertingRuleState.Firing} size="sm" />}
-        {showNormal && <AlertStateTag state={PromAlertingRuleState.Inactive} size="sm" />}
+        {shouldRenderSumary && (
+          <>
+            {showFiring && <AlertStateTag state={PromAlertingRuleState.Firing} size="sm" />}
+            {showNormal && <AlertStateTag state={PromAlertingRuleState.Inactive} size="sm" />}
+          </>
+        )}
       </Stack>
     </div>
   );
-};
-
-const TimeseriesRow: FC<FrameProps & { index: number }> = ({ frame, index }) => {
+}
+interface TimeseriesRowProps extends Omit<FrameProps, 'isRecordingRule'> {}
+const TimeseriesRow: FC<TimeseriesRowProps & { index: number }> = ({ frame, index }) => {
   const styles = useStyles2(getStyles);
 
   const valueField = frame.fields[1]; // field 0 is "time", field 1 is "value"

public/app/features/alerting/unified/components/rule-editor/alert-rule-form/AlertRuleForm.tsx

@@ -53,6 +53,7 @@ import {
 } from '../../../utils/rule-form';
 import * as ruleId from '../../../utils/rule-id';
 import { fromRulerRule, fromRulerRuleAndRuleGroupIdentifier, stringifyIdentifier } from '../../../utils/rule-id';
+import { isGrafanaRecordingRuleByType } from '../../../utils/rules';
 import { createRelativeUrl } from '../../../utils/url';
 import { GrafanaRuleExporter } from '../../export/GrafanaRuleExporter';
 import { AlertRuleNameAndMetric } from '../AlertRuleNameInput';
@@ -102,12 +103,13 @@ export const AlertRuleForm = ({ existing, prefill }: Props) => {
     if (queryParams.has('defaults')) {
       return formValuesFromQueryParams(queryParams.get('defaults') ?? '', ruleType);
     }
+    const defaultRuleType = ruleType || RuleFormType.grafana;
 
     return {
       ...getDefaultFormValues(),
       condition: 'C',
-      queries: getDefaultQueries(),
-      type: ruleType || RuleFormType.grafana,
+      queries: getDefaultQueries(isGrafanaRecordingRuleByType(defaultRuleType)),
+      type: defaultRuleType,
       evaluateEvery: evaluateEvery,
     };
   }, [existing, prefill, queryParams, evaluateEvery, ruleType]);

public/app/features/alerting/unified/utils/rule-form.ts

@@ -497,14 +497,16 @@ export function recordingRulerRuleToRuleForm(
   };
 }
 
-export const getDefaultQueries = (): AlertQuery[] => {
+export const getDefaultQueries = (isRecordingRule = false): AlertQuery[] => {
   const dataSource = getDefaultOrFirstCompatibleDataSource();
 
   if (!dataSource) {
-    return [...getDefaultExpressions('A', 'B')];
+    const expressions = isRecordingRule ? getDefaultExpressionsForRecording('A') : getDefaultExpressions('A', 'B');
+    return [...expressions];
   }
   const relativeTimeRange = getDefaultRelativeTimeRange();
 
+  const expressions = isRecordingRule ? getDefaultExpressionsForRecording('B') : getDefaultExpressions('B', 'C');
   return [
     {
       refId: 'A',
@@ -515,7 +517,7 @@ export const getDefaultQueries = (): AlertQuery[] => {
         refId: 'A',
       },
     },
-    ...getDefaultExpressions('B', 'C'),
+    ...expressions,
   ];
 };
 
@@ -536,7 +538,6 @@ export const getDefaultRecordingRulesQueries = (
     },
   ];
 };
-
 const getDefaultExpressions = (...refIds: [string, string]): AlertQuery[] => {
   const refOne = refIds[0];
   const refTwo = refIds[1];
@@ -615,6 +616,46 @@ const getDefaultExpressions = (...refIds: [string, string]): AlertQuery[] => {
     },
   ];
 };
+const getDefaultExpressionsForRecording = (refOne: string): AlertQuery[] => {
+  const reduceExpression: ExpressionQuery = {
+    refId: refOne,
+    type: ExpressionQueryType.reduce,
+    datasource: {
+      uid: ExpressionDatasourceUID,
+      type: ExpressionDatasourceRef.type,
+    },
+    conditions: [
+      {
+        type: 'query',
+        evaluator: {
+          params: [],
+          type: EvalFunction.IsAbove,
+        },
+        operator: {
+          type: 'and',
+        },
+        query: {
+          params: [refOne],
+        },
+        reducer: {
+          params: [],
+          type: 'last',
+        },
+      },
+    ],
+    reducer: 'last',
+    expression: 'A',
+  };
+
+  return [
+    {
+      refId: refOne,
+      datasourceUid: ExpressionDatasourceUID,
+      queryType: '',
+      model: reduceExpression,
+    },
+  ];
+};
 
 const dataQueriesToGrafanaQueries = async (
   queries: DataQuery[],