<?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 Doctrine\Bundle\DoctrineCacheBundle\DependencyInjection\Definition;

use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\Reference;

/**
 * MongoDB definition.
 *
 * @author Fabio B. Silva <fabio.bat.silva@gmail.com>
 */
class MongodbDefinition extends CacheDefinition
{
    /**
     * {@inheritDoc}
     */
    public function configure($name, array $config, Definition $service, ContainerBuilder $container)
    {
        $memcacheConf = $config['mongodb'];
        $collRef      = $this->getCollectionReference($name, $memcacheConf, $container);

        $service->setArguments(array($collRef));
    }

    /**
     * @param string                                                    $name
     * @param array                                                     $config
     * @param \Symfony\Component\DependencyInjection\ContainerBuilder   $container
     *
     * @return \Symfony\Component\DependencyInjection\Reference
     */
    private function getCollectionReference($name, array $config, ContainerBuilder $container)
    {
        if (isset($config['collection_id'])) {
            return new Reference($config['collection_id']);
        }

        $databaseName   = $config['database_name'];
        $collectionName = $config['collection_name'];
        $collClass      = '%doctrine_cache.mongodb.collection.class%';
        $collId         = sprintf('doctrine_cache.services.%s.collection', $name);
        $collDef        = new Definition($collClass, array($databaseName, $collectionName));
        $connRef        = $this->getConnectionReference($name, $config, $container);

        $definition = $container->setDefinition($collId, $collDef)->setPublic(false);

        if (method_exists($definition, 'setFactory')) {
            $definition->setFactory(array($connRef, 'selectCollection'));

            return new Reference($collId);
        }

        $definition
            ->setFactoryService($connRef)
            ->setFactoryMethod('selectCollection')
        ;

        return new Reference($collId);
    }

    /**
     * @param string                                                    $name
     * @param array                                                     $config
     * @param \Symfony\Component\DependencyInjection\ContainerBuilder   $container
     *
     * @return \Symfony\Component\DependencyInjection\Reference
     */
    private function getConnectionReference($name, array $config, ContainerBuilder $container)
    {
        if (isset($config['connection_id'])) {
            return new Reference($config['connection_id']);
        }

        $server         = $config['server'];
        $connClass      = '%doctrine_cache.mongodb.connection.class%';
        $connId         = sprintf('doctrine_cache.services.%s.connection', $name);
        $connDef        = new Definition($connClass, array($server));

        $connDef->setPublic(false);
        $connDef->addMethodCall('connect');

        $container->setDefinition($connId, $connDef);

        return new Reference($connId);
    }
}