<?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\SwiftmailerBundle\DependencyInjection;

use Symfony\Component\HttpKernel\DependencyInjection\Extension;

use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;

use Symfony\Component\DependencyInjection\ContainerBuilder;

use Symfony\Component\DependencyInjection\Reference;

use Symfony\Component\Config\FileLocator;

/**

 * SwiftmailerExtension is an extension for the SwiftMailer library.

 *

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

 */

class SwiftmailerExtension extends Extension

{

    /**

     * Loads the Swift Mailer configuration.

     *

     * Usage example:

     *

     *      <swiftmailer:config transport="gmail">

     *        <swiftmailer:username>fabien</swift:username>

     *        <swiftmailer:password>xxxxx</swift:password>

     *        <swiftmailer:spool path="/path/to/spool/" />

     *      </swiftmailer:config>

     *

     * @param array            $configs   An array of configuration settings

     * @param ContainerBuilder $container A ContainerBuilder instance

     */

    public function load(array $configs, ContainerBuilder $container)

    {

        $loader = new XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));

        $loader->load('swiftmailer.xml');

        $container->setAlias('mailer', 'swiftmailer.mailer');

        $configuration = new Configuration($container->getParameter('kernel.debug'));

        $config = $this->processConfiguration($configuration, $configs);

        if (null === $config['transport']) {

            $transport = 'null';

        } elseif ('gmail' === $config['transport']) {

            $config['encryption'] = 'ssl';

            $config['auth_mode'] = 'login';

            $config['host'] = 'smtp.gmail.com';

            $transport = 'smtp';

        } else {

            $transport = $config['transport'];

        }

        if (isset($config['disable_delivery']) && $config['disable_delivery']) {

            $transport = 'null';

        }

        if ('smtp' === $transport) {

            $loader->load('smtp.xml');

        }

        if (in_array($transport, array('smtp', 'mail', 'sendmail', 'null'))) {

            // built-in transport

            $transport = 'swiftmailer.transport.'.$transport;

        }

        $container->setAlias('swiftmailer.transport', $transport);

        if (false === $config['port']) {

            $config['port'] = 'ssl' === $config['encryption'] ? 465 : 25;

        }

        foreach (array('encryption', 'port', 'host', 'username', 'password', 'auth_mode') as $key) {

            $container->setParameter('swiftmailer.transport.smtp.'.$key, $config[$key]);

        }

        // spool?

        if (isset($config['spool'])) {

            $type = $config['spool']['type'];

            $loader->load('spool.xml');

            if ($type === 'file') {

                $loader->load('spool_file.xml');

            }

            $container->setAlias('swiftmailer.transport.real', $transport);

            $container->setAlias('swiftmailer.transport', 'swiftmailer.transport.spool');

            $container->setAlias('swiftmailer.spool', 'swiftmailer.spool.'.$type);

            foreach (array('path') as $key) {

                $container->setParameter('swiftmailer.spool.'.$type.'.'.$key, $config['spool'][$key]);

            }

        }

        $container->setParameter('swiftmailer.spool.enabled', isset($config['spool']));

        // antiflood?

        if (isset($config['antiflood'])) {

            $container->setParameter('swiftmailer.plugin.antiflood.threshold', $config['antiflood']['threshold']);

            $container->setParameter('swiftmailer.plugin.antiflood.sleep', $config['antiflood']['sleep']);

            $container->getDefinition('swiftmailer.plugin.antiflood')->addTag('swiftmailer.plugin');

        }

        if ($config['logging']) {

            $container->getDefinition('swiftmailer.plugin.messagelogger')->addTag('swiftmailer.plugin');

            $container->findDefinition('swiftmailer.data_collector')->addTag('data_collector', array('template' => 'SwiftmailerBundle:Collector:swiftmailer', 'id' => 'swiftmailer'));

        }

        if (isset($config['sender_address']) && $config['sender_address']) {

            $container->setParameter('swiftmailer.sender_address', $config['sender_address']);

            $container->getDefinition('swiftmailer.plugin.impersonate')->addTag('swiftmailer.plugin');

        } else {

            $container->setParameter('swiftmailer.sender_address', null);

        }

        if (isset($config['delivery_address']) && $config['delivery_address']) {

            $container->setParameter('swiftmailer.single_address', $config['delivery_address']);

            $container->getDefinition('swiftmailer.plugin.redirecting')->addTag('swiftmailer.plugin');

        } else {

            $container->setParameter('swiftmailer.single_address', null);

        }

    }

    /**

     * Returns the base path for the XSD files.

     *

     * @return string The XSD base path

     */

    public function getXsdValidationBasePath()

    {

        return __DIR__.'/../Resources/config/schema';

    }

    /**

     * Returns the namespace to be used for this extension (XML namespace).

     *

     * @return string The XML namespace

     */

    public function getNamespace()

    {

        return 'http://symfony.com/schema/dic/swiftmailer';

    }

}