bigbluebutton-Github/bigbluebutton-html5/imports/api/group-chat-msg/server/methods/chatMessageBeforeJoinCounter.js

import { Meteor } from 'meteor/meteor';
import { check } from 'meteor/check';
import GroupChat from '/imports/api/group-chat';
import { GroupChatMsg } from '/imports/api/group-chat-msg';
import Users from '/imports/api/users';
import { extractCredentials } from '/imports/api/common/server/helpers';

const CHAT_CONFIG = Meteor.settings.public.chat;
const PUBLIC_CHAT_TYPE = CHAT_CONFIG.type_public;

export default function chatMessageBeforeJoinCounter() {
  const { meetingId, requesterUserId } = extractCredentials(this.userId);

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

  const groupChats = GroupChat.find({
    $or: [
      { meetingId, access: PUBLIC_CHAT_TYPE },
      { meetingId, users: { $all: [requesterUserId] } },
    ],
  }).fetch();

  const User = Users.findOne({ userId: requesterUserId, meetingId });

  const chatIdWithCounter = groupChats.map((groupChat) => {
    const msgCount = GroupChatMsg.find({
      meetingId,
      chatId: groupChat.chatId,
      timestamp: { $lt: User.authTokenValidatedTime },
    }).count();
    return {
      chatId: groupChat.chatId,
      count: msgCount,
    };
  }).filter((chat) => chat.count);
  return chatIdWithCounter;
}