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25 lines
800 B
TypeScript
25 lines
800 B
TypeScript
import { DataFrame, ReducerID, reduceField, AbsoluteTimeRange, FieldType } from '@grafana/data';
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/**
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* Find the min and max time that covers all data
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*/
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export function getDataTimeRange(frames: DataFrame[]): AbsoluteTimeRange | undefined {
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const range: AbsoluteTimeRange = {
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from: Number.MAX_SAFE_INTEGER,
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to: Number.MIN_SAFE_INTEGER,
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};
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let found = false;
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const reducers = [ReducerID.min, ReducerID.max];
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for (const frame of frames) {
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for (const field of frame.fields) {
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if (field.type === FieldType.time) {
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const calcs = reduceField({ field, reducers });
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range.from = Math.min(range.from, calcs[ReducerID.min]);
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range.to = Math.max(range.to, calcs[ReducerID.max]);
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found = true;
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}
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}
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}
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return found ? range : undefined;
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}
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