1#@!#!123s

: / usr / share / grafana / public / app / features / annotations /

Filename : events_processing.ts

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import { concat, every, find, groupBy, head, map, partition } from 'lodash';

export function dedupAnnotations(annotations: any) {
  let dedup = [];

  // Split events by annotationId property existence
  const events = partition(annotations, 'id');

  const eventsById = groupBy(events[0], 'id');
  dedup = map(eventsById, (eventGroup) => {
    if (eventGroup.length > 1 && !every(eventGroup, isPanelAlert)) {
      // Get first non-panel alert
      return find(eventGroup, (event) => {
        return event.eventType !== 'panel-alert';
      });
    } else {
      return head(eventGroup);
    }
  });

  dedup = concat(dedup, events[1]);
  return dedup;
}

function isPanelAlert(event: { eventType: string }) {
  return event.eventType === 'panel-alert';
}