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reducer.ts
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reducer.ts
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import { createAction, createReducer } from '@reduxjs/toolkit';
import { DataQuery, getDefaultRelativeTimeRange, getNextRefId, rangeUtil, RelativeTimeRange } from '@grafana/data';
import { findDataSourceFromExpressionRecursive } from 'app/features/alerting/unified/utils/dataSourceFromExpression';
import { dataSource as expressionDatasource } from 'app/features/expressions/ExpressionDatasource';
import { isExpressionQuery } from 'app/features/expressions/guards';
import { ExpressionDatasourceUID, ExpressionQuery, ExpressionQueryType } from 'app/features/expressions/types';
import { defaultCondition } from 'app/features/expressions/utils/expressionTypes';
import { AlertQuery } from 'app/types/unified-alerting-dto';
import { getDefaultOrFirstCompatibleDataSource } from '../../../utils/datasource';
import { queriesWithUpdatedReferences, refIdExists } from '../util';
export interface QueriesAndExpressionsState {
queries: AlertQuery[];
}
const findDataSourceFromExpression = (
queries: AlertQuery[],
expression: string | undefined
): AlertQuery | null | undefined => {
const firstReference = queries.find((alertQuery) => alertQuery.refId === expression);
const dataSource = firstReference && findDataSourceFromExpressionRecursive(queries, firstReference);
return dataSource;
};
const initialState: QueriesAndExpressionsState = {
queries: [],
};
export const duplicateQuery = createAction<AlertQuery>('duplicateQuery');
export const addNewDataQuery = createAction('addNewDataQuery');
export const setDataQueries = createAction<AlertQuery[]>('setDataQueries');
export const addNewExpression = createAction<ExpressionQueryType>('addNewExpression');
export const removeExpression = createAction<string>('removeExpression');
export const removeExpressions = createAction('removeExpressions');
export const addExpressions = createAction<AlertQuery[]>('addExpressions');
export const updateExpression = createAction<ExpressionQuery>('updateExpression');
export const updateExpressionRefId = createAction<{ oldRefId: string; newRefId: string }>('updateExpressionRefId');
export const rewireExpressions = createAction<{ oldRefId: string; newRefId: string }>('rewireExpressions');
export const updateExpressionType = createAction<{ refId: string; type: ExpressionQueryType }>('updateExpressionType');
export const updateExpressionTimeRange = createAction('updateExpressionTimeRange');
export const updateMaxDataPoints = createAction<{ refId: string; maxDataPoints: number }>('updateMaxDataPoints');
export const updateMinInterval = createAction<{ refId: string; minInterval: string }>('updateMinInterval');
export const setRecordingRulesQueries = createAction<{ recordingRuleQueries: AlertQuery[]; expression: string }>(
'setRecordingRulesQueries'
);
export const queriesAndExpressionsReducer = createReducer(initialState, (builder) => {
// data queries actions
builder
.addCase(duplicateQuery, (state, { payload }) => {
state.queries = addQuery(state.queries, payload);
})
.addCase(addNewDataQuery, (state) => {
const datasource = getDefaultOrFirstCompatibleDataSource();
if (!datasource) {
return;
}
state.queries = addQuery(state.queries, {
datasourceUid: datasource.uid,
model: {
refId: '',
datasource: {
type: datasource.type,
uid: datasource.uid,
},
},
});
})
.addCase(setDataQueries, (state, { payload }) => {
const expressionQueries = state.queries.filter((query) => isExpressionQuery(query.model));
state.queries = [...payload, ...expressionQueries];
})
.addCase(setRecordingRulesQueries, (state, { payload }) => {
const query = payload.recordingRuleQueries[0];
const recordingRuleQuery = {
...query,
...{ expr: payload.expression, model: query?.model },
};
state.queries = [recordingRuleQuery];
})
.addCase(updateMaxDataPoints, (state, action) => {
state.queries = state.queries.map((query) => {
return query.refId === action.payload.refId
? {
...query,
model: {
...query.model,
maxDataPoints: action.payload.maxDataPoints,
},
}
: query;
});
})
.addCase(updateMinInterval, (state, action) => {
state.queries = state.queries.map((query) => {
return query.refId === action.payload.refId
? {
...query,
model: {
...query.model,
intervalMs: action.payload.minInterval ? rangeUtil.intervalToMs(action.payload.minInterval) : undefined,
},
}
: query;
});
});
// expressions actions
builder
.addCase(addNewExpression, (state, { payload }) => {
state.queries = addQuery(state.queries, {
datasourceUid: ExpressionDatasourceUID,
model: expressionDatasource.newQuery({
type: payload,
conditions: [{ ...defaultCondition, query: { params: [] } }],
expression: '',
}),
});
})
.addCase(removeExpression, (state, { payload }) => {
state.queries = state.queries.filter((query) => query.refId !== payload);
})
.addCase(removeExpressions, (state) => {
state.queries = state.queries.filter((query) => !isExpressionQuery(query.model));
})
.addCase(addExpressions, (state, { payload }) => {
state.queries = [...state.queries, ...payload];
})
.addCase(updateExpression, (state, { payload }) => {
state.queries = state.queries.map((query) => {
const dataSourceAlertQuery = findDataSourceFromExpression(state.queries, payload.expression);
const relativeTimeRange = dataSourceAlertQuery
? dataSourceAlertQuery.relativeTimeRange
: getDefaultRelativeTimeRange();
if (query.refId === payload.refId) {
query.model = payload;
if (payload.type === ExpressionQueryType.resample) {
query.relativeTimeRange = relativeTimeRange;
}
}
return query;
});
})
.addCase(updateExpressionTimeRange, (state) => {
const newState = state.queries.map((query) => {
// It's an expression , let's update the relativeTimeRange with its dataSource relativeTimeRange
if (query.datasourceUid === ExpressionDatasourceUID) {
const dataSource = findDataSourceFromExpression(state.queries, query.model.expression);
const relativeTimeRange = dataSource ? dataSource.relativeTimeRange : getDefaultRelativeTimeRange();
query.relativeTimeRange = relativeTimeRange;
}
return query;
});
state.queries = newState;
})
.addCase(updateExpressionRefId, (state, { payload }) => {
const { newRefId, oldRefId } = payload;
// if the new refId already exists we just refuse to update the state
const newRefIdExists = refIdExists(state.queries, newRefId);
if (newRefIdExists) {
return;
}
const updatedQueries = queriesWithUpdatedReferences(state.queries, oldRefId, newRefId);
state.queries = updatedQueries.map((query) => {
if (query.refId === oldRefId) {
return {
...query,
refId: newRefId,
model: {
...query.model,
refId: newRefId,
},
};
}
return query;
});
})
.addCase(rewireExpressions, (state, { payload }) => {
state.queries = queriesWithUpdatedReferences(state.queries, payload.oldRefId, payload.newRefId);
})
.addCase(updateExpressionType, (state, action) => {
state.queries = state.queries.map((query) => {
return query.refId === action.payload.refId
? {
...query,
model: {
...expressionDatasource.newQuery({
type: action.payload.type,
conditions: [{ ...defaultCondition, query: { params: [] } }],
expression: '',
}),
refId: action.payload.refId,
},
}
: query;
});
});
});
const addQuery = (
queries: AlertQuery[],
queryToAdd: Pick<AlertQuery, 'model' | 'datasourceUid' | 'relativeTimeRange'>
): AlertQuery[] => {
const refId = getNextRefId(queries);
const query: AlertQuery = {
...queryToAdd,
refId,
queryType: '',
model: {
...queryToAdd.model,
hide: false,
refId,
},
relativeTimeRange: queryToAdd.relativeTimeRange ?? defaultTimeRange(queryToAdd.model),
};
return [...queries, query];
};
const defaultTimeRange = (model: DataQuery): RelativeTimeRange | undefined => {
if (isExpressionQuery(model)) {
return;
}
return getDefaultRelativeTimeRange();
};