<?php
  /**
   * PHP OpenCloud library.
   * 
   * @copyright 2014 Rackspace Hosting, Inc. See LICENSE for information.
   * @license   https://www.apache.org/licenses/LICENSE-2.0
   * @author    Jamie Hannaford <jamie.hannaford@rackspace.com>
   */
  
  namespace OpenCloud\Common\Service;
  
  use Guzzle\Http\ClientInterface;
  use OpenCloud\Common\Exceptions\ServiceException;
  
  /**
   * This object is a factory for building Service objects.
   */
  class ServiceBuilder
  {
  
      /**
       * Simple factory method for creating services.
       * 
       * @param Client $client The HTTP client object
       * @param string $class  The class name of the service
       * @param array $options The options.
       * @return \OpenCloud\Common\Service\ServiceInterface
       * @throws ServiceException
       */
      public static function factory(ClientInterface $client, $class, array $options = array())
      {
          $name = isset($options['name']) ? $options['name'] : null;
          $urlType = isset($options['urlType']) ? $options['urlType'] : null;
  
          if (isset($options['region'])) {
              $region = $options['region'];
          } elseif ($client->getUser() && ($defaultRegion = $client->getUser()->getDefaultRegion())) {
              $region = $defaultRegion;
          } else {
              $region = null;
          }
  
          return new $class($client, null, $name, $region, $urlType);
      }
      
  }