<?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\Component\HttpKernel\Controller;

use Psr\Container\ContainerInterface;
use Psr\Log\LoggerInterface;
use Symfony\Component\DependencyInjection\Container;
use Symfony\Component\HttpFoundation\Request;

/**
 * A controller resolver searching for a controller in a psr-11 container when using the "service:method" notation.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Maxime Steinhausser <maxime.steinhausser@gmail.com>
 */
class ContainerControllerResolver extends ControllerResolver
{
    protected $container;

    public function __construct(ContainerInterface $container, LoggerInterface $logger = null)
    {
        $this->container = $container;

        parent::__construct($logger);
    }

    /**
     * {@inheritdoc}
     */
    public function getController(Request $request)
    {
        $controller = parent::getController($request);

        if (is_array($controller) && isset($controller[0]) && is_string($controller[0]) && $this->container->has($controller[0])) {
            $controller[0] = $this->instantiateController($controller[0]);
        }

        return $controller;
    }

    /**
     * Returns a callable for the given controller.
     *
     * @param string $controller A Controller string
     *
     * @return mixed A PHP callable
     *
     * @throws \LogicException           When the name could not be parsed
     * @throws \InvalidArgumentException When the controller class does not exist
     */
    protected function createController($controller)
    {
        if (false !== strpos($controller, '::')) {
            return parent::createController($controller);
        }

        $method = null;
        if (1 == substr_count($controller, ':')) {
            // controller in the "service:method" notation
            list($controller, $method) = explode(':', $controller, 2);
        }

        if (!$this->container->has($controller)) {
            $this->throwExceptionIfControllerWasRemoved($controller);

            throw new \LogicException(sprintf('Controller not found: service "%s" does not exist.', $controller));
        }

        $service = $this->container->get($controller);
        if (null !== $method) {
            return array($service, $method);
        }

        if (!method_exists($service, '__invoke')) {
            throw new \LogicException(sprintf('Controller "%s" cannot be called without a method name. Did you forget an "__invoke" method?', $controller));
        }

        return $service;
    }

    /**
     * {@inheritdoc}
     */
    protected function instantiateController($class)
    {
        if ($this->container->has($class)) {
            return $this->container->get($class);
        }

        try {
            return parent::instantiateController($class);
        } catch (\ArgumentCountError $e) {
        } catch (\ErrorException $e) {
        } catch (\TypeError $e) {
        }

        $this->throwExceptionIfControllerWasRemoved($class, $e);

        throw $e;
    }

    /**
     * @param string                     $controller
     * @param \Exception|\Throwable|null $previous
     */
    private function throwExceptionIfControllerWasRemoved($controller, $previous = null)
    {
        if ($this->container instanceof Container && isset($this->container->getRemovedIds()[$controller])) {
            throw new \LogicException(sprintf('Controller "%s" cannot be fetched from the container because it is private. Did you forget to tag the service with "controller.service_arguments"?', $controller), 0, $previous);
        }
    }
}
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