<?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\Routing\Loader;

use Symfony\Component\Routing\RouteCollection;

@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', ObjectRouteLoader::class, ObjectLoader::class), E_USER_DEPRECATED);

/**
 * A route loader that calls a method on an object to load the routes.
 *
 * @author Ryan Weaver <ryan@knpuniversity.com>
 *
 * @deprecated since Symfony 4.4, use ObjectLoader instead.
 */
abstract class ObjectRouteLoader extends ObjectLoader
{
    /**
     * Returns the object that the method will be called on to load routes.
     *
     * For example, if your application uses a service container,
     * the $id may be a service id.
     *
     * @param string $id
     *
     * @return object
     */
    abstract protected function getServiceObject($id);

    /**
     * Calls the service that will load the routes.
     *
     * @param string      $resource Some value that will resolve to a callable
     * @param string|null $type     The resource type
     *
     * @return RouteCollection
     */
    public function load($resource, $type = null)
    {
        if (!preg_match('/^[^\:]+(?:::?(?:[^\:]+))?$/', $resource)) {
            throw new \InvalidArgumentException(sprintf('Invalid resource "%s" passed to the "service" route loader: use the format "service::method" or "service" if your service has an "__invoke" method.', $resource));
        }

        if (1 === substr_count($resource, ':')) {
            $resource = str_replace(':', '::', $resource);
            @trigger_error(sprintf('Referencing service route loaders with a single colon is deprecated since Symfony 4.1. Use %s instead.', $resource), E_USER_DEPRECATED);
        }

        return parent::load($resource, $type);
    }

    /**
     * {@inheritdoc}
     */
    public function supports($resource, $type = null)
    {
        return 'service' === $type;
    }

    /**
     * {@inheritdoc}
     */
    protected function getObject(string $id)
    {
        return $this->getServiceObject($id);
    }
}