<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

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

 * file that was distributed with this source code.

 */

namespace Symfony\Bundle\FrameworkBundle\Controller;

use Symfony\Component\HttpKernel\Log\LoggerInterface;

use Symfony\Component\HttpKernel\Controller\ControllerResolver as BaseControllerResolver;

use Symfony\Component\DependencyInjection\ContainerInterface;

use Symfony\Bundle\FrameworkBundle\Controller\ControllerNameParser;

use Symfony\Component\DependencyInjection\ContainerAwareInterface;

/**

 * ControllerResolver.

 *

 * @author Fabien Potencier <fabien@symfony.com>

 */

class ControllerResolver extends BaseControllerResolver

{

    protected $container;

    protected $parser;

    /**

     * Constructor.

     *

     * @param ContainerInterface   $container A ContainerInterface instance

     * @param ControllerNameParser $parser    A ControllerNameParser instance

     * @param LoggerInterface      $logger    A LoggerInterface instance

     */

    public function __construct(ContainerInterface $container, ControllerNameParser $parser, LoggerInterface $logger = null)

    {

        $this->container = $container;

        $this->parser = $parser;

        parent::__construct($logger);

    }

    /**

     * Returns a callable for the given controller.

     *

     * @param string $controller A Controller string

     *

     * @return mixed A PHP callable

     */

    protected function createController($controller)

    {

        if (false === strpos($controller, '::')) {

            $count = substr_count($controller, ':');

            if (2 == $count) {

                // controller in the a:b:c notation then

                $controller = $this->parser->parse($controller);

            } elseif (1 == $count) {

                // controller in the service:method notation

                list($service, $method) = explode(':', $controller);

                return array($this->container->get($service), $method);

            } else {

                throw new \LogicException(sprintf('Unable to parse the controller name "%s".', $controller));

            }

        }

        list($class, $method) = explode('::', $controller);

        if (!class_exists($class)) {

            throw new \InvalidArgumentException(sprintf('Class "%s" does not exist.', $class));

        }

        $controller = new $class();

        if ($controller instanceof ContainerAwareInterface) {

            $controller->setContainer($this->container);

        }

        return array($controller, $method);

    }

}