<?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\Core\DependencyInjection\Compiler;

use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;

/**
 * Class RegisterListenersPass
 * @package Thelia\Core\DependencyInjection\Compiler
 *
 * Source code come from Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\RegisterKernelListenersPass class
 * @author Manuel Raynaud <mraynaud@openstudio.fr>
 */
class RegisterListenersPass implements CompilerPassInterface
{
    public function process(ContainerBuilder $container)
    {
        if (!$container->hasDefinition('event_dispatcher')) {
            return;
        }

        $definition = $container->getDefinition('event_dispatcher');

        foreach ($container->findTaggedServiceIds('kernel.event_listener') as $id => $events) {
            foreach ($events as $event) {
                $priority = isset($event['priority']) ? $event['priority'] : 0;

                if (!isset($event['event'])) {
                    throw new \InvalidArgumentException(sprintf('Service "%s" must define the "event" attribute on "kernel.event_listener" tags.', $id));
                }

                if (!isset($event['method'])) {
                    $event['method'] = 'on'.preg_replace(array(
                        '/(?<=\b)[a-z]/ie',
                        '/[^a-z0-9]/i'
                    ), array('strtoupper("\\0")', ''), $event['event']);
                }

                $definition->addMethodCall('addListenerService', array($event['event'], array($id, $event['method']), $priority));
            }
        }

        foreach ($container->findTaggedServiceIds('kernel.event_subscriber') as $id => $attributes) {
            // We must assume that the class value has been correctly filled, even if the service is created by a factory
            $class = $container->getDefinition($id)->getClass();

            $refClass = new \ReflectionClass($class);
            $interface = 'Symfony\Component\EventDispatcher\EventSubscriberInterface';
            if (!$refClass->implementsInterface($interface)) {
                throw new \InvalidArgumentException(sprintf('Service "%s" must implement interface "%s".', $id, $interface));
            }

            $definition->addMethodCall('addSubscriberService', array($id, $class));
        }
    }
}
