<?php
/*************************************************************************************/
/*                                                                                   */
/*      Thelia	                                                                     */
/*                                                                                   */
/*      Copyright (c) OpenStudio                                                     */
/*      email : info@thelia.net                                                      */
/*      web : http://www.thelia.net                                                  */
/*                                                                                   */
/*      This program is free software; you can redistribute it and/or modify         */
/*      it under the terms of the GNU General Public License as published by         */
/*      the Free Software Foundation; either version 3 of the License                */
/*                                                                                   */
/*      This program is distributed in the hope that it will be useful,              */
/*      but WITHOUT ANY WARRANTY; without even the implied warranty of               */
/*      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                */
/*      GNU General Public License for more details.                                 */
/*                                                                                   */
/*      You should have received a copy of the GNU General Public License            */
/*	    along with this program. If not, see <http://www.gnu.org/licenses/>.         */
/*                                                                                   */
/*************************************************************************************/
namespace Thelia\Controller\Admin;

use Thelia\Controller\BaseController;
use Symfony\Component\HttpFoundation\Response;
use Thelia\Core\Security\Exception\AuthorizationException;
use Thelia\Model\ConfigQuery;
use Symfony\Component\HttpKernel\HttpKernelInterface;
use Thelia\Core\Security\Exception\AuthenticationException;
use Thelia\Tools\URL;
use Thelia\Tools\Redirect;

class BaseAdminController extends BaseController
{
    const TEMPLATE_404 = "404";

    public function processTemplateAction($template)
    {
        try {
            if (! empty($template)) {
                // If we have a view in the URL, render this view
                return $this->render($template);
            } elseif (null != $view = $this->getRequest()->get('view')) {
                return $this->render($view);
            }
        } catch (\Exception $ex) {
            // Nothing special
        }

        return $this->pageNotFound();
    }

    /**
     * Return a 404 error
     *
     * @return \Symfony\Component\HttpFoundation\Response
     */
    protected function pageNotFound()
    {
        return new Response($this->renderRaw(self::TEMPLATE_404), 404);
    }

    /**
     * Return a general error page
     *
     * @return \Symfony\Component\HttpFoundation\Response
     */
    protected function errorPage($message)
    {
        return $this->render('general_error', array(
                "error_message" => $message)
        );
    }

    /**
     * Check current admin user authorisations. An ADMIN role is assumed.
     *
     * @param unknown $permissions a single permission or an array of permissions.
     *
     * @throws AuthenticationException if permissions are not granted ti the current user.
     */
    protected function checkAuth($permissions)
    {
        if (! $this->getSecurityContext()->isGranted(array("ADMIN"), is_array($permissions) ? $permissions : array($permissions))) {
            throw new AuthorizationException("Sorry, you're not allowed to perform this action");
        }
    }

    /**
     * @return a ParserInterfac instance parser
     */
    protected function getParser()
    {
        $parser = $this->container->get("thelia.parser");

        // Define the template thant shoud be used
        $parser->setTemplate(ConfigQuery::read('base_admin_template', 'admin/default'));

        return $parser;
    }

    /**
     * Forwards the request to another controller.
     *
     * @param string $controller The controller name (a string like BlogBundle:Post:index)
     * @param array  $path       An array of path parameters
     * @param array  $query      An array of query parameters
     *
     * @return Response A Response instance
     */
    protected function forward($controller, array $path = array(), array $query = array())
    {
        $path['_controller'] = $controller;
        $subRequest = $this->container->get('request')->duplicate($query, null, $path);

        return $this->container->get('http_kernel')->handle($subRequest, HttpKernelInterface::SUB_REQUEST);
    }

    /**
     * Render the given template, and returns the result as an Http Response.
     *
     * @param $templateName the complete template name, with extension
     * @param  array                                      $args the template arguments
     * @return \Symfony\Component\HttpFoundation\Response
     */
    protected function render($templateName, $args = array())
    {
        $response = new Response();

        return $response->setContent($this->renderRaw($templateName, $args));
    }

    /**
     * Render the given template, and returns the result as a string.
     *
     * @param $templateName the complete template name, with extension
     * @param  array                                      $args the template arguments
     * @return \Symfony\Component\HttpFoundation\Response
     */
    protected function renderRaw($templateName, $args = array())
    {
        // Add the template standard extension
        $templateName .= '.html';

        $session = $this->getSession();

        $args = array_merge($args, array(
            'locale' => $session->getLocale(),
            'lang'   => $session->getLang()
        ));

        try {
            $data = $this->getParser()->render($templateName, $args);

            return $data;
        } catch (AuthenticationException $ex) {

            // User is not authenticated, and templates requires authentication -> redirect to login page
            // We user login_tpl as a path, not a template.

            Redirect::exec(URL::absoluteUrl($ex->getLoginTemplate()));
        }
    }
}