<?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\Tests\DependencyInjection;

use Symfony\Bundle\SwiftmailerBundle\DependencyInjection\SwiftmailerExtension;
use Symfony\Component\Config\FileLocator;
use Symfony\Component\DependencyInjection\Compiler\ResolveDefinitionTemplatesPass; // BC with 2.7
use Symfony\Component\DependencyInjection\Compiler\ResolveChildDefinitionsPass;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Loader\PhpFileLoader;
use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
use Symfony\Component\Routing\RequestContext;

class SwiftmailerExtensionTest extends \PHPUnit_Framework_TestCase
{
    public function testLoadWithEnvVariables()
    {
        $container = $this->loadContainerFromFile('env_variable', 'yml', array(
            'swiftmailer.mailer.default.transport.eventdispatcher' => new \Swift_Events_SimpleEventDispatcher(),
            'router.request_context' => new RequestContext(),
        ), true);

        $this->assertEquals(
            array('Symfony\Bundle\SwiftmailerBundle\DependencyInjection\SwiftmailerTransportFactory', 'createTransport'),
            $container->findDefinition('swiftmailer.transport')->getFactory()
        );
        $this->assertSame('dynamic', $container->getParameter('swiftmailer.mailer.default.transport.name'));
    }

    public function getConfigTypes()
    {
        return array(
            array('xml'),
            array('php'),
            array('yml'),
        );
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testDefaultConfig($type)
    {
        $requestContext = $this->getMockBuilder('Symfony\Component\Routing\RequestContext')->setMethods(array('getHost'))->getMock();
        $requestContext->expects($this->once())->method('getHost')->will($this->returnValue('example.org'));
        $services = array('router.request_context' => $requestContext);

        $container = $this->loadContainerFromFile('empty', $type, $services);

        $this->assertEquals('swiftmailer.mailer.default.transport', (string) $container->getAlias('swiftmailer.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.smtp', (string) $container->getAlias('swiftmailer.mailer.default.transport'));

        $this->assertEquals('localhost', $container->getParameter('swiftmailer.mailer.default.transport.smtp.host'));
        $this->assertEquals(25, $container->getParameter('swiftmailer.mailer.default.transport.smtp.port'));
        $this->assertFalse($container->hasParameter('swiftmailer.mailer.default.transport.smtp.stream_options'));

        $this->assertEquals('example.org', $container->get('swiftmailer.mailer.default.transport')->getLocalDomain());
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testMailerNullConfig($type)
    {
        $container = $this->loadContainerFromFile('null_mailer', $type);
        $this->assertEquals('swiftmailer.mailer.failover.transport', (string) $container->getAlias('swiftmailer.transport'));
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testSendmailConfig($type)
    {
        // Local domain is specified explicitly, so the request context host is ignored.
        $requestContext = $this->getMockBuilder('Symfony\Component\Routing\RequestContext')->setMethods(array('getHost'))->getMock();
        $requestContext->expects($this->any())->method('getHost')->will($this->returnValue('example.org'));
        $services = array('router.request_context' => $requestContext);

        $container = $this->loadContainerFromFile('sendmail', $type, $services);

        $this->assertEquals('swiftmailer.mailer.default.transport', (string) $container->getAlias('swiftmailer.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.sendmail', (string) $container->getAlias('swiftmailer.mailer.default.transport'));

        $this->assertEquals('local.example.org', $container->get('swiftmailer.mailer.default.transport')->getLocalDomain());
    }

    /**
     * @dataProvider getConfigTypes
     *
     * @group legacy
     */
    public function testMailConfig($type)
    {
        $container = $this->loadContainerFromFile('mail', $type);

        $this->assertEquals('swiftmailer.mailer.default.transport', (string) $container->getAlias('swiftmailer.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.spool', (string) $container->getAlias('swiftmailer.mailer.default.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.mail', (string) $container->getAlias('swiftmailer.mailer.default.transport.real'));
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testNullTransport($type)
    {
        $container = $this->loadContainerFromFile('null', $type);

        $this->assertEquals('swiftmailer.mailer.default.transport', (string) $container->getAlias('swiftmailer.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.null', (string) $container->getAlias('swiftmailer.mailer.default.transport'));
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testFull($type)
    {
        $container = $this->loadContainerFromFile('full', $type);

        $this->assertEquals('swiftmailer.mailer.default.transport', (string) $container->getAlias('swiftmailer.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.spool', (string) $container->getAlias('swiftmailer.mailer.default.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.real', (string) $container->getAlias('swiftmailer.transport.real'));
        $this->assertEquals('swiftmailer.mailer.default.transport.smtp', (string) $container->getAlias('swiftmailer.mailer.default.transport.real'));
        $this->assertTrue($container->has('swiftmailer.mailer.default.spool.memory'));
        $this->assertEquals('example.org', $container->getParameter('swiftmailer.mailer.default.transport.smtp.host'));
        $this->assertEquals('12345', $container->getParameter('swiftmailer.mailer.default.transport.smtp.port'));
        $this->assertEquals('tls', $container->getParameter('swiftmailer.mailer.default.transport.smtp.encryption'));
        $this->assertEquals('user', $container->getParameter('swiftmailer.mailer.default.transport.smtp.username'));
        $this->assertEquals('pass', $container->getParameter('swiftmailer.mailer.default.transport.smtp.password'));
        $this->assertEquals('login', $container->getParameter('swiftmailer.mailer.default.transport.smtp.auth_mode'));
        $this->assertEquals('1000', $container->getParameter('swiftmailer.mailer.default.transport.smtp.timeout'));
        $this->assertEquals('127.0.0.1', $container->getParameter('swiftmailer.mailer.default.transport.smtp.source_ip'));
        $this->assertEquals('local.example.com', $container->getParameter('swiftmailer.mailer.default.transport.smtp.local_domain'));
        $this->assertSame(array('swiftmailer.default.plugin' => array(array())), $container->getDefinition('swiftmailer.mailer.default.plugin.redirecting')->getTags());
        $this->assertSame('single@host.com', $container->getParameter('swiftmailer.mailer.default.single_address'));
        $this->assertEquals(array('/foo@.*/', '/.*@bar.com$/'), $container->getParameter('swiftmailer.mailer.default.delivery_whitelist'));
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testManyMailers($type)
    {
        $container = $this->loadContainerFromFile('many_mailers', $type);

        $this->assertEquals('swiftmailer.mailer.secondary_mailer', (string) $container->getAlias('swiftmailer.mailer'));
        $this->assertEquals('swiftmailer.mailer.secondary_mailer.transport', (string) $container->getAlias('swiftmailer.transport'));
        $this->assertEquals('swiftmailer.mailer.secondary_mailer.transport.spool', (string) $container->getAlias('swiftmailer.mailer.secondary_mailer.transport'));
        $this->assertEquals('swiftmailer.mailer.secondary_mailer.transport.spool', (string) $container->getAlias('swiftmailer.mailer.secondary_mailer.transport'));
        $this->assertEquals('example.org', $container->getParameter('swiftmailer.mailer.first_mailer.transport.smtp.host'));
        $this->assertEquals('12345', $container->getParameter('swiftmailer.mailer.first_mailer.transport.smtp.port'));
        $this->assertEquals('tls', $container->getParameter('swiftmailer.mailer.first_mailer.transport.smtp.encryption'));
        $this->assertEquals('user_first', $container->getParameter('swiftmailer.mailer.first_mailer.transport.smtp.username'));
        $this->assertEquals('pass_first', $container->getParameter('swiftmailer.mailer.first_mailer.transport.smtp.password'));
        $this->assertEquals('login', $container->getParameter('swiftmailer.mailer.first_mailer.transport.smtp.auth_mode'));
        $this->assertEquals('1000', $container->getParameter('swiftmailer.mailer.first_mailer.transport.smtp.timeout'));
        $this->assertEquals('127.0.0.1', $container->getParameter('swiftmailer.mailer.first_mailer.transport.smtp.source_ip'));
        $this->assertEquals('first.example.org', $container->getParameter('swiftmailer.mailer.first_mailer.transport.smtp.local_domain'));

        $this->assertEquals('example.org', $container->getParameter('swiftmailer.mailer.secondary_mailer.transport.smtp.host'));
        $this->assertEquals('54321', $container->getParameter('swiftmailer.mailer.secondary_mailer.transport.smtp.port'));
        $this->assertEquals('tls', $container->getParameter('swiftmailer.mailer.secondary_mailer.transport.smtp.encryption'));
        $this->assertEquals('user_secondary', $container->getParameter('swiftmailer.mailer.secondary_mailer.transport.smtp.username'));
        $this->assertEquals('pass_secondary', $container->getParameter('swiftmailer.mailer.secondary_mailer.transport.smtp.password'));
        $this->assertEquals('login', $container->getParameter('swiftmailer.mailer.secondary_mailer.transport.smtp.auth_mode'));
        $this->assertEquals('1000', $container->getParameter('swiftmailer.mailer.secondary_mailer.transport.smtp.timeout'));
        $this->assertEquals('127.0.0.1', $container->getParameter('swiftmailer.mailer.secondary_mailer.transport.smtp.source_ip'));
        $this->assertEquals('second.example.org', $container->getParameter('swiftmailer.mailer.secondary_mailer.transport.smtp.local_domain'));

        $this->assertEquals('example.org', $container->getParameter('swiftmailer.mailer.third_mailer.transport.smtp.host'));
        $this->assertEquals('12345', $container->getParameter('swiftmailer.mailer.third_mailer.transport.smtp.port'));
        $this->assertEquals('tls', $container->getParameter('swiftmailer.mailer.third_mailer.transport.smtp.encryption'));
        $this->assertEquals('user_third', $container->getParameter('swiftmailer.mailer.third_mailer.transport.smtp.username'));
        $this->assertEquals('pass_third', $container->getParameter('swiftmailer.mailer.third_mailer.transport.smtp.password'));
        $this->assertEquals('login', $container->getParameter('swiftmailer.mailer.third_mailer.transport.smtp.auth_mode'));
        $this->assertEquals('1000', $container->getParameter('swiftmailer.mailer.third_mailer.transport.smtp.timeout'));
        $this->assertEquals('127.0.0.1', $container->getParameter('swiftmailer.mailer.third_mailer.transport.smtp.source_ip'));
        $this->assertEquals('third.example.org', $container->getParameter('swiftmailer.mailer.third_mailer.transport.smtp.local_domain'));
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testUrls($type)
    {
        $container = $this->loadContainerFromFile('urls', $type);

        $this->assertEquals('example.org', $container->getParameter('swiftmailer.mailer.smtp_mailer.transport.smtp.host'));
        $this->assertEquals('23456', $container->getParameter('swiftmailer.mailer.smtp_mailer.transport.smtp.port'));
        $this->assertEquals('tls', $container->getParameter('swiftmailer.mailer.smtp_mailer.transport.smtp.encryption'));
        $this->assertEquals('user', $container->getParameter('swiftmailer.mailer.smtp_mailer.transport.smtp.username'));
        $this->assertEquals('pass', $container->getParameter('swiftmailer.mailer.smtp_mailer.transport.smtp.password'));
        $this->assertEquals('login', $container->getParameter('swiftmailer.mailer.smtp_mailer.transport.smtp.auth_mode'));
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testOneMailer($type)
    {
        $container = $this->loadContainerFromFile('one_mailer', $type);

        $this->assertEquals('swiftmailer.mailer.main_mailer.transport', (string) $container->getAlias('swiftmailer.transport'));
        $this->assertEquals('swiftmailer.mailer.main_mailer.transport.smtp', (string) $container->getAlias('swiftmailer.mailer.main_mailer.transport'));
        $this->assertEquals('swiftmailer.mailer.main_mailer.transport.smtp', (string) $container->getAlias('swiftmailer.mailer.main_mailer.transport'));
        $this->assertEquals('example.org', $container->getParameter('swiftmailer.mailer.main_mailer.transport.smtp.host'));
        $this->assertEquals('12345', $container->getParameter('swiftmailer.mailer.main_mailer.transport.smtp.port'));
        $this->assertEquals('tls', $container->getParameter('swiftmailer.mailer.main_mailer.transport.smtp.encryption'));
        $this->assertEquals('user', $container->getParameter('swiftmailer.mailer.main_mailer.transport.smtp.username'));
        $this->assertEquals('pass', $container->getParameter('swiftmailer.mailer.main_mailer.transport.smtp.password'));
        $this->assertEquals('login', $container->getParameter('swiftmailer.mailer.main_mailer.transport.smtp.auth_mode'));
        $this->assertEquals('1000', $container->getParameter('swiftmailer.mailer.main_mailer.transport.smtp.timeout'));
        $this->assertEquals('127.0.0.1', $container->getParameter('swiftmailer.mailer.main_mailer.transport.smtp.source_ip'));
        $this->assertEquals('local.example.org', $container->getParameter('swiftmailer.mailer.main_mailer.transport.smtp.local_domain'));
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testSpool($type)
    {
        $container = $this->loadContainerFromFile('spool', $type);

        $this->assertEquals('swiftmailer.mailer.default.transport', (string) $container->getAlias('swiftmailer.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.spool', (string) $container->getAlias('swiftmailer.mailer.default.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.real', (string) $container->getAlias('swiftmailer.transport.real'));
        $this->assertEquals('swiftmailer.mailer.default.transport.smtp', (string) $container->getAlias('swiftmailer.mailer.default.transport.real'));
        $this->assertTrue($container->has('swiftmailer.mailer.default.spool.file'), 'Default is file based spool');
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testMemorySpool($type)
    {
        $container = $this->loadContainerFromFile('spool_memory', $type);

        $this->assertEquals('swiftmailer.mailer.default.transport', (string) $container->getAlias('swiftmailer.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.spool', (string) $container->getAlias('swiftmailer.mailer.default.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.real', (string) $container->getAlias('swiftmailer.transport.real'));
        $this->assertEquals('swiftmailer.mailer.default.transport.smtp', (string) $container->getAlias('swiftmailer.mailer.default.transport.real'));
        $this->assertTrue($container->has('swiftmailer.mailer.default.spool.memory'), 'Memory based spool is configured');
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testServiceSpool($type)
    {
        $container = $this->loadContainerFromFile('spool_service', $type);

        $this->assertEquals('swiftmailer.mailer.default.transport', (string) $container->getAlias('swiftmailer.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.spool', (string) $container->getAlias('swiftmailer.mailer.default.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.real', (string) $container->getAlias('swiftmailer.transport.real'));
        $this->assertEquals('swiftmailer.mailer.default.transport.smtp', (string) $container->getAlias('swiftmailer.mailer.default.transport.real'));
        $this->assertEquals('custom_service_id', (string) $container->getAlias('swiftmailer.mailer.default.spool.service'));
        $this->assertTrue($container->has('swiftmailer.mailer.default.spool.service'), 'Service based spool is configured');
    }

    /**
     * @dataProvider getConfigTypes
     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
     */
    public function testInvalidServiceSpool($type)
    {
        $this->loadContainerFromFile('spool_service_invalid', $type);
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testSmtpConfig($type)
    {
        $container = $this->loadContainerFromFile('smtp', $type);

        $this->assertEquals('swiftmailer.mailer.default.transport', (string) $container->getAlias('swiftmailer.transport'));
        $this->assertEquals('swiftmailer.mailer.default.transport.smtp', (string) $container->getAlias('swiftmailer.mailer.default.transport'));

        $this->assertEquals('example.org', $container->getParameter('swiftmailer.mailer.default.transport.smtp.host'));
        $this->assertEquals('12345', $container->getParameter('swiftmailer.mailer.default.transport.smtp.port'));
        $this->assertEquals('tls', $container->getParameter('swiftmailer.mailer.default.transport.smtp.encryption'));
        $this->assertEquals('user', $container->getParameter('swiftmailer.mailer.default.transport.smtp.username'));
        $this->assertEquals('pass', $container->getParameter('swiftmailer.mailer.default.transport.smtp.password'));
        $this->assertEquals('login', $container->getParameter('swiftmailer.mailer.default.transport.smtp.auth_mode'));
        $this->assertEquals('1000', $container->getParameter('swiftmailer.mailer.default.transport.smtp.timeout'));
        $this->assertEquals('127.0.0.1', $container->getParameter('swiftmailer.mailer.default.transport.smtp.source_ip'));
        $this->assertEquals('local.example.org', $container->getParameter('swiftmailer.mailer.default.transport.smtp.local_domain'));
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testStreamOptions($type)
    {
        if (!method_exists('Swift_Transport_EsmtpTransport', 'setStreamOptions')) {
            $this->markTestSkipped('This test requires Swiftmailer 5.4.2 or later.');
        }

        $container = $this->loadContainerFromFile('stream_options', $type);
        $this->assertEquals('example.org', $container->getParameter('swiftmailer.mailer.default.transport.smtp.host'));
        $this->assertEquals('12345', $container->getParameter('swiftmailer.mailer.default.transport.smtp.port'));
        $this->assertEquals('127.0.0.1', $container->getParameter('swiftmailer.mailer.default.transport.smtp.source_ip'));
        $this->assertEquals(array('ssl' => array('verify_peer' => true, 'verify_depth' => 5, 'cafile' => '/etc/ssl/cacert.pem', 'CN_match' => 'ssl.example.com')), $container->getParameter('swiftmailer.mailer.default.transport.smtp.stream_options'));
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testRedirectionConfig($type)
    {
        $container = $this->loadContainerFromFile('redirect', $type);

        $this->assertSame(array('swiftmailer.default.plugin' => array(array())), $container->getDefinition('swiftmailer.mailer.default.plugin.redirecting')->getTags());
        $this->assertSame('single@host.com', $container->getParameter('swiftmailer.mailer.default.single_address'));
        $this->assertEquals(array('/foo@.*/', '/.*@bar.com$/'), $container->getParameter('swiftmailer.mailer.default.delivery_whitelist'));
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testSingleRedirectionConfig($type)
    {
        $container = $this->loadContainerFromFile('redirect_single', $type);

        $this->assertSame(array('swiftmailer.default.plugin' => array(array())), $container->getDefinition('swiftmailer.mailer.default.plugin.redirecting')->getTags());
        $this->assertSame('single@host.com', $container->getParameter('swiftmailer.mailer.default.single_address'));
        $this->assertSame(array('single@host.com'), $container->getParameter('swiftmailer.mailer.default.delivery_addresses'));
        $this->assertEquals(array('/foo@.*/'), $container->getParameter('swiftmailer.mailer.default.delivery_whitelist'));
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testMultiRedirectionConfig($type)
    {
        $container = $this->loadContainerFromFile('redirect_multi', $type);

        $this->assertSame(array('swiftmailer.default.plugin' => array(array())), $container->getDefinition('swiftmailer.mailer.default.plugin.redirecting')->getTags());
        $this->assertSame(array('first@host.com', 'second@host.com'), $container->getParameter('swiftmailer.mailer.default.delivery_addresses'));
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testAntifloodConfig($type)
    {
        $container = $this->loadContainerFromFile('antiflood', $type);

        $this->assertSame(array('swiftmailer.default.plugin' => array(array())), $container->getDefinition('swiftmailer.mailer.default.plugin.antiflood')->getTags());
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testSenderAddress($type)
    {
        $container = $this->loadContainerFromFile('sender_address', $type);

        $this->assertEquals('noreply@test.com', $container->getParameter('swiftmailer.mailer.default.sender_address'));
        $this->assertEquals('noreply@test.com', $container->getParameter('swiftmailer.sender_address'));
        $this->assertTrue($container->hasParameter('swiftmailer.mailer.default.sender_address'), 'The sender address is configured');
    }

    /**
     * @dataProvider getConfigTypes
     */
    public function testDisableDelivery($type)
    {
        $container = $this->loadContainerFromFile('disable_delivery', $type);

        $this->assertTrue($container->getParameter('swiftmailer.mailer.mailer_on.delivery.enabled'));
        $this->assertSame('smtp', $container->getParameter('swiftmailer.mailer.mailer_on.transport.name'));

        $this->assertFalse($container->getParameter('swiftmailer.mailer.mailer_off.delivery.enabled'));
        $this->assertSame('null', $container->getParameter('swiftmailer.mailer.mailer_off.transport.name'));
    }

    public function testDisableDeliveryWithEnvVars()
    {
        $container = $this->loadContainerFromFile('disable_delivery_env', 'yml', array(), true);

        $this->assertTrue($container->getParameter('swiftmailer.mailer.mailer_on.delivery.enabled'));
        $this->assertSame('smtp', $container->getParameter('swiftmailer.mailer.mailer_on.transport.name'));

        $this->assertFalse($container->getParameter('swiftmailer.mailer.mailer_off.delivery.enabled'));
        $this->assertSame('null', $container->getParameter('swiftmailer.mailer.mailer_off.transport.name'));
    }

    /**
     * @param string $file
     * @param string $type
     * @param array  $services
     * @param bool   $skipEnvVars
     *
     * @return ContainerBuilder
     */
    private function loadContainerFromFile($file, $type, array $services = array(), $skipEnvVars = false)
    {
        $container = new ContainerBuilder();

        if ($skipEnvVars && !method_exists($container, 'resolveEnvPlaceholders')) {
            $this->markTestSkipped('Runtime environment variables has been introduced in the Dependency Injection version 3.2.');
        }

        $container->setParameter('kernel.debug', false);
        $container->setParameter('kernel.cache_dir', '/tmp');

        foreach ($services as $id => $service) {
            $container->set($id, $service);
        }

        $container->registerExtension(new SwiftmailerExtension());
        $locator = new FileLocator(__DIR__.'/Fixtures/config/'.$type);

        switch ($type) {
            case 'xml':
                $loader = new XmlFileLoader($container, $locator);
                break;

            case 'yml':
                $loader = new YamlFileLoader($container, $locator);
                break;

            case 'php':
                $loader = new PhpFileLoader($container, $locator);
                break;
        }

        $loader->load($file.'.'.$type);

        $container->getCompilerPassConfig()->setOptimizationPasses(array(
            class_exists('Symfony\Component\DependencyInjection\Compiler\ResolveChildDefinitionsPass') ? new ResolveChildDefinitionsPass() : new ResolveDefinitionTemplatesPass(),
        ));
        $container->getCompilerPassConfig()->setRemovingPasses(array());
        $container->compile();

        return $container;
    }
}