<?php

$islandora_module_path = drupal_get_path('module', 'fedora_repository');

//do this until we expost these in a module or library
@include_once 'sites/all/libraries/tuque/Datastream.php';
@include_once 'sites/all/libraries/tuque/FedoraApi.php';
@include_once 'sites/all/libraries/tuque/FedoraApiSerializer.php';
@include_once 'sites/all/libraries/tuque/Object.php';
@include_once 'sites/all/libraries/tuque/RepositoryConnection.php';
@include_once 'sites/all/libraries/tuque/Cache.php';
@include_once 'sites/all/libraries/tuque/RepositoryException.php';
@include_once 'sites/all/libraries/tuque/Repository.php';
@include_once 'sites/all/libraries/tuque/FedoraRelationships.php';

@include_once "$islandora_module_path/libraries/tuque/Datastream.php";
@include_once "$islandora_module_path/libraries/tuque/FedoraApi.php";
@include_once "$islandora_module_path/libraries/tuque/FedoraApiSerializer.php";
@include_once "$islandora_module_path/libraries/tuque/Object.php";
@include_once "$islandora_module_path/libraries/tuque/RepositoryConnection.php";
@include_once "$islandora_module_path/libraries/tuque/Cache.php";
@include_once "$islandora_module_path/libraries/tuque/RepositoryException.php";
@include_once "$islandora_module_path/libraries/tuque/Repository.php";
@include_once "$islandora_module_path/libraries/tuque/FedoraRelationships.php";

class IslandoraTuque {

  /**
   * Connection to the repository
   *
   * @var RepositoryConnection
   */
  public $connection = NULL;

  /**
   * The Fedora API we are using
   *
   * @var FedoraAPI
   */
  public $api = NULL;

  /**
   * The cache we use to connect.
   *
   * @var SimpleCache
   */
  public $cache = NULL;

  /**
   * The repository object.
   *
   * @var FedoraRepository
   */
  public $repository = NULL;

  function __construct($user = NULL, $url = NULL) {
    if(!isset($user)) {
      global $user;
    }
    
    if(!isset($user) || $user->uid == 0){
      $user_string = 'anonymous';
      $pass_string = 'anonymous';
    } else {
      $user_string = $user->name;
      $pass_string = $user->pass;
    }

    if (!isset($url)) {
      $url = variable_get('islandora_base_url', 'http://localhost:8080/fedora');
    }

    if(self::exists()) {
      $this->connection = new RepositoryConnection($url, $user_string, $pass_string);
      $this->connection->reuseConnection = TRUE;
      $this->api = new FedoraApi($this->connection);
      $this->cache = new SimpleCache();
      $this->repository = new FedoraRepository($this->api, $this->cache);
    }
 }
 
  static function exists() {
    return class_exists('RepositoryConnection');
  }

  static function getError() {
    $islandora_doc_link = l(t('Islandora documentation'), 'https://wiki.duraspace.org/display/ISLANDORA/Islandora');
    $tuque_link = l(t('Tuque Fedora API'), 'http://github.com/islandora/tuque');
    $message = t('Islandora requires the !tuque_url. Please install in /sites/all/libraries/tuque before continuing. See the !islandora_url.', array( '!tuque_url' => $tuque_link, '!islandora_url' => $islandora_doc_link));
    drupal_set_message($message, 'error', FALSE);
  }
}

function islandora_object_load($object_id) {
    static $islandora_tuque = NULL;

    if(!$islandora_tuque) {
      $islandora_tuque = new IslandoraTuque(); 
    }

    if(IslandoraTuque::exists()) {
      try {
        $fedora_object = $islandora_tuque->repository->getObject($object_id);
      } catch (Exception $e) {
        return NULL;
      }
      return $fedora_object;
    }
    else {
      IslandoraTuque::getError();
      return NULL;
    }
  }