route

var express = require('express');
var router = express.Router();
var User = require('../models/user');
var Facebook = require('../models/facebook');
var session = require('express-session');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var FacebookStrategy = require('passport-facebook').Strategy;

    router.get('/register', function (req, res){
        res.render('register');
    });

    router.get('/lobby', function (req, res) {
        console.log("User req "+req.user); // here I got the error user undefined
        res.render('lobby', {user: req.user});
    });

    router.get('/logfb', passport.authenticate('facebook', {scope: 'email'}));

    router.get('/logout', function (req, res) {
        req.logout();
        req.flash('success_msg', 'Zostałeś wylogowany');
        res.redirect('/');
    });


router.get('/logfb/return', passport.authenticate('facebook', {
    successRedirect: '/users/lobby',
    failureRedirect: '/',
    failureFlash: true
}));

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


    router.post('/register', function (req, res){
        var login = req.body.login;
        var email = req.body.email;
        var password = req.body.password;
        var password2 = req.body.password2;

        //Validator
        req.checkBody('login', 'Pole login jest puste').notEmpty();
        req.checkBody('email', 'Pole email jest puste').notEmpty();
        req.checkBody('password', 'Pole hasło jest puste').notEmpty();
        req.checkBody('password2', 'Pole powtórz hasło jest puste').notEmpty();
        req.checkBody('email', 'Email nie jest poprawny').isEmail();
        req.checkBody('password2', 'Hasła nie są takie same').equals(password);


        var errors = req.validationErrors();
        if (errors) {
            res.render('register', {
                errors: errors
            });
        } else {
            var newUser = new User({
                login: login,
                email: email,
                password: password
            });
            User.test(login, function (err, user) {
                if (err) throw err;
                if (user.length > 0) {
                    req.flash('error_msg', 'Nazwa użytkownka zajęta');
                    res.redirect('/users/register');
                } else {
                    User.createUser(newUser, function (err, user){
                        if (err) throw err;
                        req.flash('success_msg', 'Zarejestrowano pomyślnie');
                        res.redirect('/users/register');
                    });
                }
            });
        }
    });



//Passport strategies
passport.serializeUser(function (user, done) {
    console.log("serialize " + user); // here object user is defined and got datafrom database
    done(null, user.id);
});

passport.deserializeUser(function (id, done) {
    User.getUserById(id, function (err, user) {
        done(err, user);
    });
});

passport.use(new LocalStrategy(
    function (username, password, done) {
        User.getUserByUsername(username, function (err, user) {
            if (err) throw err;
            if (!user) {
                return done(null, false, {message: 'Błędne dane'});
            }
            User.comparePassword(password, user.password, function (err, isMatch) {
                if (err) throw err;
                if (isMatch) {
                    return done(null, user);
                } else {
                    return done(null, false, {message: 'Błędne dane'});
                }
            });
        });
    }));

passport.use(new FacebookStrategy({
        clientID: xxxxxxxxxxx,
        clientSecret: 'xxxxxxxxxxx',
        callbackURL: "http://localhost:3000/users/logfb/return"
    },
    // facebook will send back the token and profile
    function (token, refreshToken, profile, done) {
        // asynchronous
        process.nextTick(function () {
            // find the user in the database based on their facebook id
            Facebook.findOne({'facebook.id': profile.id}, function (err, user) {
                // if there is an error, stop everything and return that
                // ie an error connecting to the database
                if (err) return done(err);
                // if the user is found, then log them in
                if (user) {
                    return done(null, user); // user found, return that user
                } else {
                    // if there is no user found with that facebook id, create them
                    var newFacebook = new Facebook();
                    // set all of the facebook information in our user model
                    console.log(profile);
                    console.log("****************");
                    newFacebook.facebook.id = profile.id; // set the users facebook id
                    newFacebook.facebook.token = token; // we will save the token that facebook provides to the user
                    newFacebook.facebook.name = profile.displayName;//profile.name.givenName + ' ' + profile.name.familyName;; // look at the passport user profile to see how names are returned
                    // newFacebook.facebook.email = profile.emails[0].value; // facebook can return multiple emails so we'll take the first
                    // save our user to the database
                    newFacebook.save(function (err) {
                        if (err)
                            throw err;
                        // if successful, return the new user
                        return done(null, newFacebook);
                    });
                }
            });
        });

    }));


module.exports = router;