All files / src/model event-util.ts

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'use strict';
 
import { Event } from './event';
 
export const eventMerge = (events: Array<Event>) => {
    const eventTypes = events.map((event) => {
        const eventType = event.payload.eventType || event.eventType;
        return eventType;
    });
 
    const reduce = (result: any, entry: any): any => {
        entry.eventType = undefined;
        return { ...result, ...entry };
    };
 
    const history = (events.reduceRight(reduce) as any);
    delete history.eventType;
    history.eventTypes = eventTypes;
    return history;
};