<?php
/**
* Joomla! Framework Website
*
* @copyright  Copyright (C) 2014 - 2017 Open Source Matters, Inc. All rights reserved.
* @license    http://www.gnu.org/licenses/gpl-2.0.txt GNU General Public License Version 2 or Later
*/

namespace Octoleo\CMS\Service;

use Joomla\DI\Container;
use Joomla\DI\ServiceProviderInterface;
use Joomla\Event\Dispatcher;
use Joomla\Event\DispatcherInterface;
use Octoleo\CMS\EventListener\ErrorSubscriber;
use Joomla\Renderer\RendererInterface;
use Psr\Log\LoggerInterface;

/**
 * Event service provider
 * source: https://github.com/joomla/framework.joomla.org/blob/master/src/Service/EventProvider.php
 */
class EventProvider implements ServiceProviderInterface
{
	/**
	 * Registers the service provider with a DI container.
	 *
	 * @param   Container  $container  The DI container.
	 *
	 * @return  void
	 */
	public function register(Container $container): void
	{
		// This service cannot be protected as it is decorated when the debug bar is available
		$container->alias(Dispatcher::class, DispatcherInterface::class)
			->share(DispatcherInterface::class, [$this, 'getDispatcherService']);

		$container->share(ErrorSubscriber::class, [$this, 'getErrorSubscriber'], true)
			->tag('event.subscriber', [ErrorSubscriber::class]);
	}

	/**
	 * Get the DispatcherInterface service
	 *
	 * @param   Container  $container  The DI container.
	 *
	 * @return  DispatcherInterface
	 */
	public function getDispatcherService(Container $container): DispatcherInterface
	{
		$dispatcher = new Dispatcher;

		foreach ($container->getTagged('event.subscriber') as $subscriber)
		{
			$dispatcher->addSubscriber($subscriber);
		}

		return $dispatcher;
	}

	/**
	 * Get the ErrorSubscriber service
	 *
	 * @param   Container  $container  The DI container.
	 *
	 * @return  ErrorSubscriber
	 */
	public function getErrorSubscriber(Container $container): ErrorSubscriber
	{
		$subscriber = new ErrorSubscriber($container->get(RendererInterface::class));
		$subscriber->setLogger($container->get(LoggerInterface::class));

		return $subscriber;
	}
}