module.exports = function (app, passport) {

    // show the index page
    app.get('/', function (req, res) {
        res.render('index.ejs');
    });

    // USERSPAGE SECTION =========================
    app.get('/userspage', isLoggedIn, function (req, res) {
        res.render('userspage.ejs', {
            user: req.user,
            message: req.flash('進入使用者操作畫面')
        });
    });

    // LOGOUT SECTION==============================
    app.get('/logout', function (req, res) {
        req.logout();
        res.redirect('/index.ejs');
    });



    // LOGIN ===============================
    // show the login form
    app.get('/login', function (req, res) {
        res.render('login.ejs', {
            message: req.flash('登入訊息')
        });
    });

    // process the login form
    app.post('/login', passport.authenticate('local-login', {
        successRedirect: '/userspage',
        failureRedirect: '/login',
        failureFlash: true
    }));

    // SIGNUP =================================
    // show the signup form
    app.get('/signup', function (req, res) {
        res.render('signup.ejs', {
            message: req.flash('註冊訊息')
        });
    });


    // process the signup form
    app.post('/signup', passport.authenticate('local-signup', {
        successRedirect: '/userspage',
        failureRedirect: '/signup',
        failureFlash: true
    }));

    // facebook -------------------------------


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


    app.get('/auth/facebook/callback',
        passport.authenticate('facebook', {
            successRedirect: '/userspage',
            failureRedirect: '/signup'
        }));

    // twitter --------------------------------


    app.get('/auth/twitter', passport.authenticate('twitter', {
        scope: 'email'
    }));


    app.get('/auth/twitter/callback',
        passport.authenticate('twitter', {
            successRedirect: '/userspage',
            failureRedirect: '/signup'
        }));


    // google ---------------------------------


    app.get('/auth/google', passport.authenticate('google', {
        scope: ['userspage', 'email']
    }));


    app.get('/auth/google/callback',
        passport.authenticate('google', {
            successRedirect: '/userspage',
            failureRedirect: '/signup'
        }));

    // AUTH -----------------------------------

    // locally --------------------------------
    app.get('/connect/local', function (req, res) {
        res.render('connect-local.ejs', {
            message: req.flash('登入訊息')
        });
    });
    app.post('/connect/local', passport.authenticate('local-signup', {
        successRedirect: '/userspage',
        failureRedirect: '/signup',
        failureFlash: true
    }));

    // facebook -------------------------------


    app.get('/connect/facebook', passport.authorize('facebook', {
        scope: 'email'
    }));


    app.get('/connect/facebook/callback',
        passport.authorize('facebook', {
            successRedirect: '/userspage',
            failureRedirect: '/signup'
        }));

    // twitter --------------------------------


    app.get('/connect/twitter', passport.authorize('twitter', {
        scope: 'email'
    }));


    app.get('/connect/twitter/callback',
        passport.authorize('twitter', {
            successRedirect: '/userspage',
            failureRedirect: '/signup'
        }));


    // google ---------------------------------


    app.get('/connect/google', passport.authorize('google', {
        scope: ['userspage', 'email']
    }));


    app.get('/connect/google/callback',
        passport.authorize('google', {
            successRedirect: '/userspage',
            failureRedirect: '/signup'
        }));


    // 連結用戶===================================


    // local -----------------------------------
    app.get('/unlink/local', isLoggedIn, function (req, res) {
        var user = req.user;
        user.local.email = undefined;
        user.local.password = undefined;
        user.local.username = undefined;
        user.local.birthday = undefined;
        user.local.sex = undefined;
        user.save(function (err) {
            res.redirect('/userspage');
        });
    });

    // facebook -------------------------------
    app.get('/unlink/facebook', isLoggedIn, function (req, res) {
        var user = req.user;
        user.facebook.token = undefined;
        user.save(function (err) {
            res.redirect('/userspage');
        });
    });

    // // twitter --------------------------------
    app.get('/unlink/twitter', isLoggedIn, function (req, res) {
        var user = req.user;
        user.twitter.token = undefined;
        user.save(function (err) {
            res.redirect('/userspage');
        });
    });

    // google ---------------------------------
    app.get('/unlink/google', isLoggedIn, function (req, res) {
        var user = req.user;
        user.google.token = undefined;
        user.save(function (err) {
            res.redirect('/userspage');
        });
    });


};


function isLoggedIn(req, res, next) {


    if (req.isAuthenticated())
        return next();


    res.redirect('/');
}