Chat is working

server/chat/index.js

@@ -1,7 +1,105 @@
-const express = require('express');
-const router = express.Router();
+const { request } = require('express');
+const jwt = require('jsonwebtoken');
 
-//basic route management
-//TODO: import the routes
+const chat = io => {
+	io.on('connection', socket => {
+		//middleware
+		socket.use((request, next) => {
+			//verify request format
+			if (!['open chat', 'message'].includes(request[0])) {
+				return next(`Invalid request to the chat server ${request[0]}`);
+			}
+			return next();
+		});
 
-module.exports = router;
+		socket.use((request, next) => {
+			//authenticate the jwt
+			return jwt.verify(request[1].accessToken, process.env.SECRET_ACCESS, (err, user) => {
+				if (err) {
+					return next(err);
+				}
+
+				const room = socket.user?.room; //save room, if any
+				socket.user = user;
+				socket.user.room = room;
+
+				return next();
+			});
+		});
+
+		//handle errors
+		socket.on('error', err => {
+			console.log('socket error:', err);
+			socket.emit(err);
+		});
+
+		//from here, handles all normal messages
+		socket.on('open chat', message => {
+			//handle rooms - only in a room if you've opened chat
+			const newlyOpened = !socket.user.room;
+			socket.user.room = socket.user.room || 'general'; //default to general
+
+			if (!newlyOpened) {
+				return;
+			}
+
+			socket.join(socket.user.room);
+
+			//broadcast to this room
+			socket.broadcast.to(socket.user.room).emit('message', { emphasis: true, text: `${socket.user.username} entered chat` });
+		});
+
+		socket.on('message', message => {
+			//server commands begin with a '/'
+			if (message.text.startsWith('/')) {
+				return executeCommand(socket, message.text);
+			}
+
+			//broadcast to this room
+			socket.broadcast.to(socket.user.room).emit('message', { username: socket.user.username, text: message.text });
+		});
+
+		socket.on('disconnect', reason => {
+			//broadcast to this room
+			if (!socket.user) {
+				return;
+			}
+
+			socket.broadcast.to(socket.user.room || '.error').emit('message', { emphasis: true, text: `${socket.user.username} left chat` });
+		});
+	});
+};
+
+//handle commands
+const executeCommand = (socket, command) => {
+	switch(command.split(' ')[0]) {
+		case '/room':
+			const room = command.split(' ')[1];
+
+			if (!room) {
+				socket.emit('no room argument');
+				break;
+			}
+
+			//broadcast to the old room
+			socket.broadcast.to(socket.user.room).emit('message', { emphasis: true, text: `${socket.user.username} left chat` });
+
+			socket.leave(socket.user.room);
+			socket.user.room = room;
+			socket.join(socket.user.room);
+
+			//broadcast to the new room
+			socket.broadcast.to(socket.user.room).emit('message', { emphasis: true, text: `${socket.user.username} entered chat` });
+			socket.emit('message', { emphasis: true, text: `Entered room ${socket.user.room}` });
+			break;
+
+		default:
+			socket.emit('message', { emphasis: true, text: 'Unknown command' });
+	}
+};
+
+module.exports = chat;
+
+//TODO: record messages in a database
+//TODO: handle message backlog on connection
+//TODO: add banning and muting controls

server/server.js

@@ -5,6 +5,11 @@ require('dotenv').config();
 const express = require('express');
 const app = express();
 const server = require('http').Server(app);
+const io = require('socket.io')(server, {
+	cors: {
+		origin: '*'
+	}
+});
 const bodyParser = require('body-parser');
 const cors = require('cors');
 
@@ -15,8 +20,8 @@ app.use(cors());
 //database connection
 const database = require('./database');
 
-//access the news
-app.use('/chat', require('./chat'));
+//access the chat
+require('./chat')(io.of('/chat'));
 
 //error on access
 app.get('*', (req, res) => {