bigbluebutton-Github/bigbluebutton-html5/imports/api/meetings/server/methods/changeLayout.js

import Logger from '/imports/startup/server/logger';
import { LayoutMeetings } from '/imports/api/meetings';
import RedisPubSub from '/imports/startup/server/redis';
import { extractCredentials } from '/imports/api/common/server/helpers';
import { check } from 'meteor/check';

export default async function changeLayout(payload) {
  const REDIS_CONFIG = Meteor.settings.private.redis;
  const CHANNEL = REDIS_CONFIG.channels.toAkkaApps;
  const EVENT_NAME = 'BroadcastLayoutMsg';

  try {
    const { meetingId, requesterUserId } = extractCredentials(this.userId);

    check(meetingId, String);
    check(requesterUserId, String);

    const m = await LayoutMeetings.findOneAsync({ meetingId }) || {};
    const {
      layout,
      pushLayout,
      presentationIsOpen,
      isResizing,
      cameraPosition,
      focusedCamera,
      presentationVideoRate,
    } = m;

    const defaultPayload = {
      layout,
      pushLayout,
      presentationIsOpen,
      isResizing,
      cameraPosition,
      focusedCamera,
      presentationVideoRate,
      ...payload,
    };

    check(defaultPayload, {
      layout: String,
      pushLayout: Boolean,
      presentationIsOpen: Boolean,
      isResizing: Boolean,
      cameraPosition: Match.Maybe(String),
      focusedCamera: String,
      presentationVideoRate: Number,
    });

    RedisPubSub.publishUserMessage(CHANNEL, EVENT_NAME, meetingId, requesterUserId, defaultPayload);
  } catch (err) {
    Logger.error(`Exception while invoking method changeLayout ${err.stack}`);
  }
}