bigbluebutton-Github/bigbluebutton-html5/imports/api/voice-users/server/handlers/leftVoiceUser.js

import { check } from 'meteor/check';

import removeVoiceUser from '/imports/api/voice-users/server/modifiers/removeVoiceUser';
import removeUser from '/imports/api/users/server/modifiers/removeUser';
import Users from '/imports/api/users';

export default function handleVoiceUpdate({ body }, meetingId) {
  const voiceUser = body;

  check(meetingId, String);
  check(voiceUser, {
    voiceConf: String,
    intId: String,
    voiceUserId: String,
  });

  const {
    intId,
    voiceUserId,
  } = voiceUser;

  const isDialInUser = (userId, meetingID) => !!Users.findOne({ meetingId: meetingID, userId, clientType: 'dial-in-user' });

  // if the user is dial-in, leaving voice also means leaving userlist
  if (isDialInUser(voiceUserId, meetingId)) removeUser(meetingId, intId);

  return removeVoiceUser(meetingId, voiceUser);
}