bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/components-data/chat-context/adapter.jsx
2021-04-22 15:45:26 -03:00

133 lines
4.2 KiB
JavaScript

import { useContext, useEffect, useState } from 'react';
import _ from 'lodash';
import { ChatContext, ACTIONS, MESSAGE_TYPES } from './context';
import { UsersContext } from '../users-context/context';
import { makeCall } from '/imports/ui/services/api';
import ChatLogger from '/imports/ui/components/chat/chat-logger/ChatLogger';
import Auth from '/imports/ui/services/auth';
let prevUserData = {};
let currentUserData = {};
let messageQueue = [];
const CHAT_CONFIG = Meteor.settings.public.chat;
const ITENS_PER_PAGE = CHAT_CONFIG.itemsPerPage;
const TIME_BETWEEN_FETCHS = CHAT_CONFIG.timeBetweenFetchs;
const EVENT_NAME = 'bbb-group-chat-messages-subscription-has-stoppped';
const getMessagesBeforeJoinCounter = async () => {
const counter = await makeCall('chatMessageBeforeJoinCounter');
return counter;
};
const startSyncMessagesbeforeJoin = async (dispatch) => {
const chatsMessagesCount = await getMessagesBeforeJoinCounter();
const pagesPerChat = chatsMessagesCount.map(chat => ({ ...chat, pages: Math.ceil(chat.count / ITENS_PER_PAGE), syncedPages: 0 }));
const syncRoutine = async (chatsToSync) => {
if (!chatsToSync.length) return;
const pagesToFetch = [...chatsToSync].sort((a, b) => a.pages - b.pages);
const chatWithLessPages = pagesToFetch[0];
chatWithLessPages.syncedPages += 1;
const messagesFromPage = await makeCall('fetchMessagePerPage', chatWithLessPages.chatId, chatWithLessPages.syncedPages);
if (messagesFromPage.length) {
dispatch({
type: ACTIONS.ADDED,
value: messagesFromPage,
messageType: MESSAGE_TYPES.HISTORY,
});
dispatch({
type: ACTIONS.SYNC_STATUS,
value: {
chatId: chatWithLessPages.chatId,
percentage: Math.floor((chatWithLessPages.syncedPages / chatWithLessPages.pages) * 100),
},
});
}
await new Promise(r => setTimeout(r, TIME_BETWEEN_FETCHS));
syncRoutine(pagesToFetch.filter(chat => !(chat.syncedPages > chat.pages)));
};
syncRoutine(pagesPerChat);
};
const Adapter = () => {
const usingChatContext = useContext(ChatContext);
const { dispatch } = usingChatContext;
const usingUsersContext = useContext(UsersContext);
const { users } = usingUsersContext;
const [syncStarted, setSync] = useState(true);
ChatLogger.trace('chatAdapter::body::users', users[Auth.meetingID]);
useEffect(() => {
window.addEventListener(EVENT_NAME, () => {
if (prevUserData.role && prevUserData?.role !== currentUserData?.role) {
dispatch({
type: ACTIONS.CLEAR_STREAM_MESSAGES,
});
}
});
}, []);
useEffect(() => {
const connectionStatus = Meteor.status();
if (connectionStatus.connected && !syncStarted && Auth.userID) {
setSync(true);
startSyncMessagesbeforeJoin(dispatch);
}
}, [Meteor.status().connected, syncStarted, Auth.userID]);
useEffect(() => {
if (users[Auth.meetingID]) {
if (currentUserData?.role !== users[Auth.meetingID][Auth.userID].role) {
prevUserData = currentUserData;
}
currentUserData = users[Auth.meetingID][Auth.userID];
}
}, [usingUsersContext]);
useEffect(() => {
if (!Meteor.status().connected) return;
setSync(false);
dispatch({
type: ACTIONS.CLEAR_ALL,
});
const throttledDispatch = _.throttle(() => {
const dispatchedMessageQueue = [...messageQueue];
messageQueue = [];
dispatch({
type: ACTIONS.ADDED,
value: dispatchedMessageQueue,
messageType: MESSAGE_TYPES.STREAM,
});
}, 1000, { trailing: true, leading: true });
Meteor.connection._stream.socket.addEventListener('message', (msg) => {
if (msg.data.indexOf('{"msg":"added","collection":"group-chat-msg"') != -1) {
const parsedMsg = JSON.parse(msg.data);
if (parsedMsg.msg === 'added') {
const { fields } = parsedMsg;
if (fields.id === 'SYSTEM_MESSAGE-PUBLIC_CHAT_CLEAR') {
messageQueue = [];
dispatch({
type: ACTIONS.REMOVED,
});
}
messageQueue.push(fields);
throttledDispatch();
}
}
});
}, [Meteor.status().connected, Meteor.connection._lastSessionId]);
return null;
};
export default Adapter;