import { check } from 'meteor/check';
import Users from '/imports/api/slides';
import Logger from '/imports/startup/server/logger';

import setConnectionStatus from './setConnectionStatus';

const CLIENT_TYPE_HTML = 'HTML5';

export default function removeUser(meetingId, userId) {
  check(meetingId, String);
  check(userId, String);

  const selector = {
    meetingId,
    userId,
  };

  const User = Users.findOne(selector);

  if (User && User.clientType !== CLIENT_TYPE_HTML) {
    const cb = (err, numChanged) => {
      if (err) {
        return Logger.error(`Removing user from collection: ${err}`);
      }

      if (numChanged) {
        return Logger.info(`Removed user id=${userId} meeting=${meetingId}`);
      }
    };

    return Users.remove(selector, cb);
  }

  const modifier = {
    $set: {
      'user.connection_status': 'offline',
      'user.voiceUser.talking': false,
      'user.voiceUser.joined': false,
      'user.voiceUser.muted': false,
      'user.time_of_joining': 0,
      'user.listenOnly': false, //TODO make this user: {}
    },
  };

  const cb = (err, numChanged) => {
    if (err) {
      return Logger.error(`Removing user from collection: ${err}`);
    }

    if (numChanged) {
      return Logger.info(`Removed ${CLIENT_TYPE_HTML} user id=${userId} meeting=${meetingId}`);
    }
  };

  return Users.update(selector, modifier, cb);
};