module.exports = (app) => {

	var isAdmin = (req, res, next) => {
		if ((req.isAuthenticated()) && (req.user.role == "admin")) {
			return next();
		} else {
			res.redirect('/');
		}
	}

	var db = require('../index.js').database;
    var passport = require('passport');
    var local_strategy = require('passport-local').Strategy;
    var User = require('../models/User.js'); //USER MODEL

    passport.serializeUser((user, done) => {
        done(null, user.id);
    });

    passport.deserializeUser((id, done) => {
        User.findById(id, (err, user) => {
            done(err, user);
        });
    });

    //LOGIN STRATEGY
    passport.use('login_strategy', new local_strategy({
        usernameField: 'email', //THE FIELDS IN THE FORM
        passwordField: 'password',
        passReqToCallback: true,
    }, (req, email, password, done) => {
        User.findOne({
            'email': email,
        }, (err, user) => {
            if(err) return done(err);
            if(!user) return done(null, false); //USER DOESNT EXIST
            if(!user.compareHash(password)) return done(null, false); //USER EXISTS, PASSWORD DIDNT MATCH

            return done(null, user);
        })
    }));

    //REGISTER STRATEGY
    passport.use('register_strategy', new local_strategy({
        usernameField: 'email', //THE FIELDS IN THE FORM
        passwordField: 'password',
        passReqToCallback: true,
    }, (req, email, password, done) => {
        //process.nextTick(() => {
            User.findOne({
                'email': email,
            }, (err, user) => {

                if(err) return done(err);
                if(user) return done(null, false); //USER ALREADY EXISTS

                var user = new User();
                user.email = email;
                user.password = user.generateHash(password);
                user.role = req.body.role;

                //console.log(req.body)
                //console.log(user);

                user.save((err) => {
                    if(err) throw err;
                    return done(null, user);
                })
            });
        //})
    }));

    app.get('/login', (req, res) => {
        res.render('login.ejs', {

        });
    });

    app.post('/login', passport.authenticate('login_strategy'), (req, res) => {
		if(req.user.role == 'admin'){
			res.redirect('/client_overview');
		} else {
			db.collection('clients').find({'name': req.user.role }).toArray((err, clients) => {
				res.redirect('campaign_overview_client/' + clients[0]._id);
			});
		}
    });

    app.get('/register', (req, res) => {
        res.render('register.ejs', {

        });
    });

    app.post('/register', passport.authenticate('register_strategy'), (req, res) => {
        res.redirect('/login');
    });

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