@aller/blink/src/reducers/video.ts

A library for tracking user behaviour.

import { VideoTimeEvent } from '../utils/video-event-time';
import { VIDEO_PLAY, VIDEO_STOP, PAGE_INIT } from '../actions';

export interface VideoState {
  events: VideoTimeEvent[];
}

function videoEvents(state: VideoTimeEvent[] = [], action: any) {
  switch (action.type) {
    case PAGE_INIT:
      return [];
    case VIDEO_PLAY:
      return state.concat({
        reason: action.payload.reason,
        muted: action.payload.muted,
        position: action.payload.position,
        volume: action.payload.volume,
        time: action.payload.time || new Date(),
        videoId: action.payload.videoId,
        playerId: action.payload.playerId,
        type: 'start',
      });
    case VIDEO_STOP:
      return state.concat({
        reason: action.payload.reason,
        muted: action.payload.muted,
        position: action.payload.position,
        volume: action.payload.volume,
        time: action.payload.time || new Date(),
        videoId: action.payload.videoId,
        playerId: action.payload.playerId,
        type: 'stop',
      });
    default:
      return state;
  }
}

export default function video(state: VideoState = { events: [] }, action: any) {
  const ev = state ? state.events || [] : [];

  return {
    ...state,
    events: videoEvents(ev, action),
  };
}