var passport = require('passport'),
    LocalStrategy = require('passport-local').Strategy,
    bcrypt = require('bcrypt');

passport.serializeUser(function(user, done) {
    done(null, user[0].id);
});

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

passport.use(new LocalStrategy(
    function(username, password, done) {
        User.findByUsername(username).done(function(err, user) {
            if (err) {
                return done(null, err);
            }
            if (!user || user.length < 1) {
                return done(null, false, {
                    message: 'Incorrect User'
                });
            }
            bcrypt.compare(password, user[0].password, function(err, res) {
                if (!res) return done(null, false, {
                    message: 'Invalid Password'
                });
                return done(null, user);
            });
        });
    }));

module.exports = {
    express: {
        customMiddleware: function(app) {
            console.log('express midleware for passport');
            app.use(passport.initialize());
            app.use(passport.session());
        }
    }
};