<?php

/*

 * This file is part of the FOSUserBundle package.

 *

 * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace FOS\UserBundle\Controller;

use Symfony\Component\DependencyInjection\ContainerAware;

use Symfony\Component\HttpFoundation\RedirectResponse;

use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;

use FOS\UserBundle\Model\UserInterface;

/**

 * Controller managing the resetting of the password

 *

 * @author Thibault Duplessis <thibault.duplessis@gmail.com>

 * @author Christophe Coevoet <stof@notk.org>

 */

class ResettingController extends ContainerAware

{

    /**

     * Request reset user password: show form

     */

    public function requestAction()

    {

        return $this->container->get('templating')->renderResponse('FOSUserBundle:Resetting:request.html.'.$this->getEngine());

    }

    /**

     * Request reset user password: submit form and send email

     */

    public function sendEmailAction()

    {

        $username = $this->container->get('request')->request->get('username');

        $user = $this->container->get('fos_user.user_manager')->findUserByUsernameOrEmail($username);

        if (null === $user){

            return $this->container->get('templating')->renderResponse('FOSUserBundle:Resetting:request.html.'.$this->getEngine(), array('invalid_username' => $username));

        }

        if ($user->isPasswordRequestNonExpired($this->container->getParameter('fos_user.resetting.token_ttl'))) {

            return $this->container->get('templating')->renderResponse('FOSUserBundle:Resetting:passwordAlreadyRequested.html.'.$this->getEngine());

        }

        $user->generateConfirmationToken();

        $this->container->get('session')->set('fos_user_send_resetting_email/email', $user->getEmail());

        $this->container->get('fos_user.mailer')->sendResettingEmailMessage($user);

        $user->setPasswordRequestedAt(new \DateTime());

        $this->container->get('fos_user.user_manager')->updateUser($user);

        return new RedirectResponse($this->container->get('router')->generate('fos_user_resetting_check_email'));

    }

    /**

     * Tell the user to check his email provider

     */

    public function checkEmailAction()

    {

        $session = $this->container->get('session');

        $email = $session->get('fos_user_send_resetting_email/email');

        $session->remove('fos_user_send_resetting_email/email');

        $user = $this->container->get('fos_user.user_manager')->findUserByEmail($email);

        if (empty($user)) {

            return new RedirectResponse($this->container->get('router')->generate('fos_user_resetting_request'));

        }

        return $this->container->get('templating')->renderResponse('FOSUserBundle:Resetting:checkEmail.html.'.$this->getEngine(), array(

            'user' => $user,

        ));

    }

    /**

     * Reset user password

     */

    public function resetAction($token)

    {

        $user = $this->container->get('fos_user.user_manager')->findUserByConfirmationToken($token);

        if (null === $user){

            throw new NotFoundHttpException(sprintf('The user with "confirmation token" does not exist for value "%s"', $token));

        }

        if (!$user->isPasswordRequestNonExpired($this->container->getParameter('fos_user.resetting.token_ttl'))) {

            return new RedirectResponse($this->container->get('router')->generate('fos_user_resetting_request'));

        }

        $form = $this->container->get('fos_user.resetting.form');

        $formHandler = $this->container->get('fos_user.resetting.form.handler');

        $process = $formHandler->process($user);

        if ($process) {

            $this->authenticateUser($user);

            $this->setFlash('fos_user_success', 'resetting.flash.success');

            return new RedirectResponse($this->getRedirectionUrl($user));

        }

        return $this->container->get('templating')->renderResponse('FOSUserBundle:Resetting:reset.html.'.$this->getEngine(), array(

            'token' => $token,

            'form' => $form->createView(),

            'theme' => $this->container->getParameter('fos_user.template.theme'),

        ));

    }

    /**

     * Authenticate a user with Symfony Security

     *

     * @param UserInterface $user

     */

    protected function authenticateUser(UserInterface $user)

    {

        $providerKey = $this->container->getParameter('fos_user.firewall_name');

        $token = new UsernamePasswordToken($user, null, $providerKey, $user->getRoles());

        $this->container->get('security.context')->setToken($token);

    }

    /**

     * Generate the redirection url when the resetting is completed.

     *

     * @param UserInterface $user

     * @return string

     */

    protected function getRedirectionUrl(UserInterface $user)

    {

        return $this->container->get('router')->generate('fos_user_profile_show');

    }

    protected function setFlash($action, $value)

    {

        $this->container->get('session')->setFlash($action, $value);

    }

    protected function getEngine()

    {

        return $this->container->getParameter('fos_user.template.engine');

    }

}