bigbluebutton-Github/bigbluebutton-html5/imports/ui/services/unread-messages/index.js
2021-04-12 08:16:57 -03:00

56 lines
1.6 KiB
JavaScript
Executable File

import { Tracker } from 'meteor/tracker';
import Storage from '/imports/ui/services/storage/session';
const CHAT_CONFIG = Meteor.settings.public.chat;
const STORAGE_KEY = CHAT_CONFIG.storage_key;
const PUBLIC_GROUP_CHAT_ID = CHAT_CONFIG.public_group_id;
class UnreadMessagesTracker {
constructor() {
this._tracker = new Tracker.Dependency();
this._unreadChats = {
...Storage.getItem('UNREAD_CHATS'),
[PUBLIC_GROUP_CHAT_ID]: (new Date()).getTime(),
};
this.get = this.get.bind(this);
}
get(chatID) {
this._tracker.depend();
return this._unreadChats[chatID] || 0;
}
update(chatID, timestamp = 0) {
const currentValue = this.get(chatID);
if (currentValue < timestamp) {
this._unreadChats[chatID] = timestamp;
this._tracker.changed();
Storage.setItem(STORAGE_KEY, this._unreadChats);
}
return this._unreadChats[chatID];
}
getUnreadMessages(chatID, messages) {
const isPublicChat = chatID === PUBLIC_GROUP_CHAT_ID;
let unreadMessages = [];
if (messages[chatID]) {
const contextChat = messages[chatID];
const unreadTimewindows = contextChat.unreadTimeWindows;
for (const unreadTimeWindowId of unreadTimewindows) {
unreadMessages.push(isPublicChat
? contextChat?.preJoinMessages[unreadTimeWindowId] || contextChat?.posJoinMessages[unreadTimeWindowId]
: contextChat?.messageGroups[unreadTimeWindowId]);
}
}
return unreadMessages;
}
}
const UnreadTrackerSingleton = new UnreadMessagesTracker();
export default UnreadTrackerSingleton;