app.js

require('dotenv').config()
const express = require('express')
const app = express()
const passport = require('passport');
const cookieSession = require('cookie-session')
const path = require('path');
const http = require('http');
const socketio = require('socket.io');
const formatMessage = require('./utils/messages');
require('./passport-setup');


// For an actual app you should configure this with an experation time, better keys, proxy and secure
app.use(cookieSession({
    name: 'tuto-session',
    keys: ['key1', 'key2']
}))

app.set('view engine', 'ejs')


// Auth middleware that checks if the user is logged in
const isLoggedIn = (req, res, next) => {
    if (req.user) {
        next();
    } else {
        res.sendStatus(401);
    }
}

// Initializes passport and passport sessions
app.use(passport.initialize());
app.use(passport.session());

// Example protected and unprotected routes
app.get('/', (req, res) => res.render('pages/index'))
app.get('/failed', (req, res) => res.send('You Failed to log in!'))

// In this route you can see that if the user is logged in u can acess his info in: req.user
app.get('/good', isLoggedIn, (req, res) => {
    res.render("pages/mosab", { name: req.user.displayName, pic: req.user.photos[0].value, email: req.user.emails[0].value })
})

// Auth Routes
app.get('/google', passport.authenticate('google', { scope: ['profile', 'email'] }));

app.get('/google/callback', passport.authenticate('google', { failureRedirect: '/failed' }),
    function(req, res) {
        // Successful authentication, redirect home.
        res.redirect('/good');
    }
);

app.get('/logout', (req, res) => {
    req.session = null;
    req.logout();
    res.redirect('/');
})





const {
    userJoin,
    getCurrentUser,
    userLeave,
    getRoomUsers
} = require('./utils/users');


const server = http.createServer(app);
const io = socketio(server);

// Set static folder
app.use(express.static(path.join(__dirname, 'public')));

const botName = 'ChatCord Bot';

// Run when client connects
io.on('connection', socket => {
    socket.on('joinRoom', ({ username, room }) => {
        const user = userJoin(socket.id, username, room);

        socket.join(user.room);

        // Welcome current user
        socket.emit('message', formatMessage(botName, 'Welcome to ChatCord!'));

        // Broadcast when a user connects
        socket.broadcast
            .to(user.room)
            .emit(
                'message',
                formatMessage(botName, `${user.username} has joined the chat`)
            );

        // Send users and room info
        io.to(user.room).emit('roomUsers', {
            room: user.room,
            users: getRoomUsers(user.room)
        });
    });

    // Listen for chatMessage
    socket.on('chatMessage', msg => {
        const user = getCurrentUser(socket.id);

        io.to(user.room).emit('message', formatMessage(user.username, msg));
    });

    // Runs when client disconnects
    socket.on('disconnect', () => {
        const user = userLeave(socket.id);

        if (user) {
            io.to(user.room).emit(
                'message',
                formatMessage(botName, `${user.username} has left the chat`)
            );

            // Send users and room info
            io.to(user.room).emit('roomUsers', {
                room: user.room,
                users: getRoomUsers(user.room)
            });

        }
    });
});

const PORT = process.env.PORT || 5500;

server.listen(PORT, () => console.log(`Server running on port ${PORT}`));