/* jshint node: true */

var passport = require('passport'),
	LocalStrategy = require('passport-local').Strategy,
	_ = require('lodash'),
	util = require('../util'),
	config = require('../../../config.json'),
	User = require('../models/User');

var auth = {
	
	guestUser: {
		id: "guest",
		username: "guest",
		access: 0,
	},

	init: function () { 
		passport.serializeUser(auth.serializeUser);
		passport.deserializeUser(auth.deserializeUser);
		passport.use(new LocalStrategy(auth.verifyLocalUser))
	},

	login: function (req, res, next) {
		passport.authenticate("local", function(err, user, info){
			if (err || ! user) {
				return res.json({ error: err });
			}
			
			req.logIn(user, function(err) {
				if (err) { return next(err); }
				User.findAll({ where: { access: 2 }, attributes: ['id','name'] }).success(function(hosts){
					return res.json({
						status: "OK",
						user: user,
						hosts: hosts,
						returnTo: returnTo || "/profile"
					})
				})
			});
		})(req, res, next);
	},

	logout: function (req, res) {
		req.logout();
		res.redirect('/');
	},

	serializeUser: function (user, done) {
		done(null, user.id);
	},

	deserializeUser: function (id, done) {
		if (id == "guest") {
			return auth.guestUser
		}
		User.find({ id: id }, function (err, user) {
			done(err, user)
		});
	},

	verifyLocalUser: function (username, password, done) {
		if (username == "protocolsnyc" && password == "madhousenyc") {
			return done(null, auth.guestUser)
		}
		User.findByUsername(username, function(err, user){
			if (err) { return done(err); }
			if (! user) {
				return done(null, false, { error: { errors: { username: { message: 'No such username.' } }}})
			}
			if (! user.validPassword(password)) {
				return done(null, false, { error: { errors: { password: { message: 'Incorrect password.' } }}})
			}
			return done(null, user);
		});
	}

}