// app/routes.js
module.exports = function(app, passport) {

    // 首頁 ===============================
    app.get('/', function(req, res) {
        res.render('index.ejs'); // 載入 index.ejs file
    });

    // 登入頁
    app.get('/login', function(req, res) {
		    res.render('login.ejs', { message: req.flash('loginMessage') });
    });

    // 處理登入
    app.post('/login', passport.authenticate('local-login', {
        successRedirect : '/profile', // 成功則導入profile
        failureRedirect : '/login',   // 失敗則返回登入頁
        failureFlash : true // 允許 flash 訊息
    }));
	  // FACEBOOK 登入路由 =====================
    app.get('/auth/facebook', passport.authenticate('facebook'));

    // 處理登入後的callback url
    app.get('/auth/facebook/callback',
        passport.authenticate('facebook', {
            successRedirect : '/profile',
            failureRedirect : '/'
        }));

    // 登出用
    app.get('/logout', function(req, res) {
        req.logout();
        res.redirect('/');
    });

	// 帳號綁定/聯結其他社群帳號 =============

  // 綁定本地帳戶 --------------------------------
	app.get('/connect/local', isLoggedIn, function(req, res) {
		res.render('connect-local.ejs', { message: req.flash('loginMessage') });
	});
	app.post('/connect/local', isLoggedIn, passport.authenticate('local-connect', {
		successRedirect : '/profile', // redirect to the secure profile section
		failureRedirect : '/connect/local', // redirect back to the signup page if there is an error
		failureFlash 	: true // allow flash messages
	}));

    // facebook 綁定-------------------------------


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


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

    // 註冊表單
    app.get('/signup', function(req, res) {
		    res.render('signup.ejs', { message: req.flash('signupMessage') });
    });

    // 處理註冊
    app.post('/signup', passport.authenticate('local-signup', {
        successRedirect : '/profile', // redirect to the secure profile section
        failureRedirect : '/signup', // redirect back to the signup page if there is an error
        failureFlash : true // allow flash messages
    }));

    // PROFILE =====================
    // 需要權限才能造訪的頁面我們就用 isLoggedIn function 來處理
    app.get('/profile', isLoggedIn, function(req, res) {
        res.render('profile.ejs', {
            user : req.user
        });
    });
	// 帳號解除綁定 =============================================================
	// 社群帳號, 只移除token以方便日後要重新綁定
	// 本地帳號則會移除email & password

    // 本地帳號 -----------------------------------
    app.get('/unlink/local', function(req, res) {
        var user            = req.user;
        user.local.email    = undefined;
        user.local.password = undefined;
        user.save(function(err) {
            res.redirect('/profile');
        });
    });

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


    // 登出 ==============================
    app.get('/logout', function(req, res) {
        req.logout();
        res.redirect('/');
    });
};

// 處理權限
function isLoggedIn(req, res, next) {
	  if (req.isAuthenticated())
        return next();
    res.redirect('/');
}