'use strict';

/**
 * Module dependencies.
 */
var _ = require('lodash'),
	errorHandler = require('../errors'),
	mongoose = require('mongoose'),
	passport = require('passport'),
	User = mongoose.model('User');

/**
 * Signup
 */
exports.signup = function(req, res) {
	// For security measurement we remove the roles from the req.body object
	delete req.body.roles;

	// Init Variables
	var user = new User(req.body);
	var message = null;

	// Add missing user fields
	user.provider = 'local';
	user.displayName = user.firstName + ' ' + user.lastName;

	// Then save the user 
	user.save(function(err) {
		if (err) {
			return res.status(400).send({
				message: errorHandler.getErrorMessage(err)
			});
		} else {
			// Remove sensitive data before login
			user.password = undefined;
			user.salt = undefined;

			req.login(user, function(err) {
				if (err) {
					res.status(400).send(err);
				} else {
					res.jsonp(user);
				}
			});
		}
	});
};

/**
 * Signin after passport authentication
 */
exports.signin = function(req, res, next) {
	passport.authenticate('local', function(err, user, info) {
		if (err || !user) {
			res.status(400).send(info);
		} else {
			// Remove sensitive data before login
			user.password = undefined;
			user.salt = undefined;

			req.login(user, function(err) {
				if (err) {
					res.status(400).send(err);
				} else {
					res.jsonp(user);
				}
			});
		}
	})(req, res, next);
};

/**
 * Signout
 */
exports.signout = function(req, res) {
	req.logout();
	res.redirect('/');
};

/**
 * OAuth callback
 */
exports.oauthCallback = function(strategy) {
	return function(req, res, next) {
		passport.authenticate(strategy, function(err, user, redirectURL) {
			if (err || !user) {
				return res.redirect('/#!/signin');
			}
			req.login(user, function(err) {
				if (err) {
					return res.redirect('/#!/signin');
				}

				return res.redirect(redirectURL || '/');
			});
		})(req, res, next);
	};
};