OmarElGabry/chat.io

'use strict';

var express         = require('express');
var router         = express.Router();
var passport     = require('passport');

var User = require('../models/user');
var Room = require('../models/room');

// Home page
router.get('/', function(req, res, next) {
    // If user is already logged in, then redirect to rooms page
    if(req.isAuthenticated()){
        res.redirect('/rooms');
    }
    else{
        res.render('login', {
            success: req.flash('success')[0],
            errors: req.flash('error'), 
            showRegisterForm: req.flash('showRegisterForm')[0]
        });
    }
});

// Login
router.post('/login', passport.authenticate('local', { 
    successRedirect: '/rooms', 
    failureRedirect: '/',
    failureFlash: true
}));

// Register via username and password
router.post('/register', function(req, res, next) {

    var credentials = {'username': req.body.username, 'password': req.body.password };

    if(credentials.username === '' || credentials.password === ''){
        req.flash('error', 'Missing credentials');
        req.flash('showRegisterForm', true);
        res.redirect('/');
    }else{

        // Check if the username already exists for non-social account
        User.findOne({'username': new RegExp('^' + req.body.username + '$', 'i'), 'socialId': null}, function(err, user){
            if(err) throw err;
            if(user){
                req.flash('error', 'Username already exists.');
                req.flash('showRegisterForm', true);
                res.redirect('/');
            }else{
                User.create(credentials, function(err, newUser){
                    if(err) throw err;
                    req.flash('success', 'Your account has been created. Please log in.');
                    res.redirect('/');
                });
            }
        });
    }
});

// Social Authentication routes
// 1. Login via Facebook
router.get('/auth/facebook', passport.authenticate('facebook'));
router.get('/auth/facebook/callback', passport.authenticate('facebook', {
        successRedirect: '/rooms',
        failureRedirect: '/',
        failureFlash: true
}));

// 2. Login via Twitter
router.get('/auth/twitter', passport.authenticate('twitter'));
router.get('/auth/twitter/callback', passport.authenticate('twitter', {
        successRedirect: '/rooms',
        failureRedirect: '/',
        failureFlash: true
}));

// Rooms
router.get('/rooms', [User.isAuthenticated, function(req, res, next) {
    Room.find(function(err, rooms){
        if(err) throw err;
        res.render('rooms', { rooms });
    });
}]);

// Chat Room 
router.get('/chat/:id', [User.isAuthenticated, function(req, res, next) {
    var roomId = req.params.id;
    Room.findById(roomId, function(err, room){
        if(err) throw err;
        if(!room){
            return next(); 
        }
        res.render('chatroom', { user: req.user, room: room });
    });
    
}]);

// Logout
router.get('/logout', function(req, res, next) {
    // remove the req.user property and clear the login session
    req.logout();

    // destroy session data
    req.session = null;

    // redirect to homepage
    res.redirect('/');
});

module.exports = router;