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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[e-mail]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\DependencyInjection\Config;

use Symfony\Component\Config\Resource\ResourceInterface;
use Symfony\Component\Config\ResourceCheckerInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * @author Maxime Steinhausser <[e-mail]>
 */
class ContainerParametersResourceChecker implements ResourceCheckerInterface
{
    /** @var ContainerInterface */
    private $container;

    public function __construct(ContainerInterface $container)
    {
        $this->container = $container;
    }

    /**
     * {@inheritdoc}
     */
    public function supports(ResourceInterface $metadata)
    {
        return $metadata instanceof ContainerParametersResource;
    }

    /**
     * {@inheritdoc}
     */
    public function isFresh(ResourceInterface $resource, $timestamp)
    {
        foreach ($resource->getParameters() as $key => $value) {
            if (!$this->container->hasParameter($key) || $this->container->getParameter($key) !== $value) {
                return false;
            }
        }

        return true;
    }
}