<?php
//2006-03-08 (Fairiz Azizi <fi_drupal@gofigo.org>)
//           modified gallery_1.module from
//           http://drupal.org/project/comments/add/45159
//           to comply with Gallery 2.1
//           see http://fisheye.gallery2.org/viewrep/gallery/gallery2/upgrade/index.php
//           revision 1.23.2.1 notes

/**
* Implementation of hook_help
*/
function gallery_help($section) {
        switch($section) {
  case 'admin/modules#description':
          return t('Integration with Gallery2.1 (%gallery_url)', array('%gallery_url' => 'http://gallery.menalto.com/'));
        }
}

/**
* Implementation of hook_menu
*/
function gallery_menu($may_cache) {
        $items = array();

        if ($may_cache) {
                $items[] = array('path' => 'gallery',
                                                                                 'title' => t('gallery'),
                                                                                 'callback' => 'gallery_page',
                                                                                 'access' => user_access('access gallery'),
                                                                                 'type' => MENU_NORMAL_ITEM);
        }

        return $items;
}

/**
 * Implementation of hook_perm().
 */
function gallery_perm() {
  return array('access gallery');
}

/**
 * Implementation of hook_settings
 */
function gallery_settings() {
  $form['gallery_dir'] = array(
    '#type' => 'textfield',
    '#title' => t('Location of Gallery2'),
    '#default_value' => variable_get('gallery_dir', 'gallery2/'),
    '#description' => t('Path to your gallery2 directory, relative to the root directory of your drupal installation. Please include a trailing slash ("/").'),
    );
  $form['gallery_drupal_dir'] = array(
    '#type' => 'textfield',
    '#title' => t('Location of Drupal'),
    '#default_value' => variable_get('gallery_drupal_dir', '/'),
    '#description' => t('Path to your drupal directory, relative to the root of your website. Please include a trailing slash ("/").'),
    );
  $form['gallery_error_mode'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Error logging'),
    '#default_value' => variable_get('gallery_error_mode', array(1)),
    '#options' => array(1 => t('Watchdog'), 2 => t('Output to the browser')),
    '#description' => t('Choose where errors are displayed'),
    );

  return $form;
}

/**
* Implementation of hook_user
*/
function gallery_user($op, &$edit, &$user, $category = NULL) {
        switch ($op) {
  case 'login':
          /* _gallery_init() will try to create the user, if necessary */
          list ($success, $ret) = _gallery_init();
          if (!$success) {
                  gallery_error(t('Unable to log in to Gallery'), $ret);
                  return;
          }
          break;

  case 'insert':
          list ($success, $ret) = _gallery_init();
          if (!$success) {
                  gallery_error(t('Unable to initialize embedded Gallery'), $ret);
                  return;
          }

          $ret = GalleryEmbed::createUser($user->uid,
                  array('username' => $user->name,
                  'email' => $user->mail,
                  'fullname' => $user->name,
                  'language' => $user->language,
                  'hashedpassword' => $user->pass,
                  'hashmethod' => 'md5'
                  ));

                if ($ret) {
                  gallery_error(t('Error creating Gallery user'), $ret);
                  return;
        }
          GalleryEmbed::done();
          break;

  case 'update':
          list ($success, $ret) = _gallery_init();
          if (!$success) {
                  gallery_error(t('Unable to initialize embedded Gallery'), $ret);
                  return;
          }

          // on update we can't be sure how much info $edit will contain.
          $name = ($edit['name']) ? $edit['name'] : $user->name;
          $language = ($edit['language']) ? $edit['language'] : $user->language;
          $pass = ($edit['pass']) ? md5($edit['pass']) : $user->pass;
          $email = ($edit['email']) ? $edit['mail'] : $user->mail;
          $ret = GalleryEmbed::updateUser($user->uid,
                  array('username' => $name,
                  'fullname' => $name,
                  'email' => $mail,
                  'language' => $language,
                  'hashedpassword' => $pass,
                  'hashmethod' => 'md5'));
                if ($ret) {
                  // try to create user then.
                  $ret = GalleryEmbed::createUser($user->uid,
                          array('username' => $name,
                          'fullname' => $name,
                          'email' => $mail,
                          'language' => $language,
                          'hashedpassword' => $pass,
                          'hashmethod' => 'md5'
                          ));
                        if ($ret) {
                          gallery_error(t('Error updating Gallery user'), $ret);
                          return;
          }
        }
          GalleryEmbed::done();
          break;

  case 'delete':
          list ($success, $ret) = _gallery_init();
          if (!$success) {
                  gallery_error(t('Unable to initialize embedded Gallery'), $ret);
                  return;
          }

          $ret = GalleryEmbed::deleteUser($user->uid);
          if ($ret) {
                  gallery_error(t('Error deleting Gallery user'), $ret);
        }
          GalleryEmbed::done();
          break;
        }
}

/**
 * Implementation of hook_block
 *
 * - gallery navigation block (recommended)
 * - gallery imageblock (random, most viewed, etc)
 */
function gallery_block($op = 'list', $delta = 0, $edit = array()) {
  $typeMap = array('randomImage' => t('Random Image'),
                   'recentImage' => t('Newest Image'),
                   'viewedImage' => t('Most Viewed Image'),
                   'randomAlbum' => t('Random Album'),
                   'recentAlbum' => t('Newest Album'),
                   'viewedAlbum' => t('Most Viewed Album'),
                   'dailyImage' => t('Picture of the Day'),
                   'weeklyImage' => t('Picture of the Week'),
                   'monthlyImage' => t('Picture of the Month'),
                   'dailyAlbum' => t('Album of the Day'),
                   'weeklyAlbum' => t('Album of the Week'),
                   'monthlyAlbum' => t('Album of the Month'));

  switch ($op) {
    case 'list':
      $blocks[0]['info'] = t('Gallery Block');
      return $blocks;

    case 'configure':
      $form['gallery_block_block_'. $delta] = array(
        '#type' => 'checkboxes',
        '#title' => t('Image type'),
        '#default_value' => variable_get('gallery_block_block_' . $delta, array('randomImage')),
        '#options' => $typeMap,
        '#description' => t("Pick the type of image you'd like to see"),
        );
      $form['gallery_block_show_'. $delta] = array(
        '#type' => 'checkboxes',
        '#title' => t('Image data'),
        '#default_value' => variable_get('gallery_block_show_' . $delta, array('title', 'heading')),
        '#options' => array('title' => 'Title', 'date' => 'Date',  'views' => 'View Count', 'owner' => 'Item owner', 'heading' => 'Heading', 'fullSize' => 'Full Size'),
        '#description' => t("Choose the item metadata you'd like to display")
        );
      return $form;
    case 'save':
      // if no image types selected, assume randomImage
      if (count($edit['gallery_block_block_' . $delta])) {
        variable_set('gallery_block_block_' . $delta, $edit['gallery_block_block_' . $delta]);
      }
      else {
        variable_set('gallery_block_block_' . $delta, array('randomImage'));
      }
      variable_set('gallery_block_show_' . $delta, $edit['gallery_block_show_' . $delta]);
      break;

    case 'view':
      list ($success, $ret) = _gallery_init(true);
      if (!$success) {
        gallery_error(t('Unable to initialize embedded Gallery'), $ret);
        return;
      }

      $params['blocks'] = implode('|', variable_get('gallery_block_block_' . $delta, array('randomImage')));
      $params['show'] = implode('|', variable_get('gallery_block_show_' . $delta, array()));

      // TODO: parameterize this
      $params['maxSize'] = 150;

      $block = array();
      list($ret, $content, $head) = GalleryEmbed::getImageBlock($params);
      if ($ret) {
                gallery_error(t('Unable to get Gallery image block'), $ret);
                return;
      } else {
        if ($content) {
                if (count(variable_get('gallery_block_block_' . $delta, 'randomImage')) > 1) {
                $block['subject'] = t('Gallery');
                }
                else {
                $block['subject'] = $typeMap[$params['blocks']];
                }
                $block['content'] = '<center>'. $content . '</center>';
        }
        if ($head) {
                drupal_set_html_head($head);
        }
      }

      $ret = GalleryEmbed::done();
      if ($ret) {
                gallery_error(t('Unable to complete Gallery request'), $ret);
                return;
      }
      return $block;
  }
}

/**
* implementation of hook_search
*/
function gallery_search($op = 'search', $keys = null) {
        switch ($op) {
  case 'name':
          return t('gallery');
  case 'search':
          $find = array();

          list ($success, $ret) = _gallery_init(true);
          if (!$success) {
                  gallery_error(t('Unable to initialize embedded Gallery'), $ret);
                  return;
          }

          list ($ret, $results) = GalleryEmbed::searchScan($keys, 20);
          if (!$ret) {
                  $urlGenerator =& $GLOBALS['gallery']->getUrlGenerator();
                  foreach ($results as $name => $module) {
                          if (count($module['results']) > 0) {
                                  foreach ($module['results'] as $result) {
                                          $excerpt = array();
                                          foreach ($result['fields'] as $field) {
                                                  $words = search_keywords_split($keys);
                                                  foreach ($words as $word) {
                                                          if (preg_match("/$word/", $field['value'])) {
                                                                  $excerpt[] = $field['key'] .': '.search_excerpt($keys, $field['value']);
                                                          }
                                                  }
                                          }
                                          $find[] = array('title' => $result['fields'][0]['value'],
                                                  'link'  => $urlGenerator->generateUrl(array('itemId' => $result['itemId'])),
                                                  'type'  => $module['name'],
                                                  'snippet' => implode('<br />', $excerpt));
                                  }
                          }
                  }
          }
          return $find;
        }
}

/**
* Main gallery display page
*/
function gallery_page() {
        list ($success, $ret) = _gallery_init(true);
        if (!$success) {
                gallery_error(t('Unable to initialize embedded Gallery'), $ret);
                print theme('page', 'You need to <a href="/admin/settings/gallery">configure your embedded Gallery</a>');
                return;
        }

        /* Pass any excess path info to G2 */
        $path = substr($_GET['q'], 7 /* length of 'gallery/' */);
        if (!empty($path)) {
                $_GET[GALLERY_FORM_VARIABLE_PREFIX . 'path'] = $path;
        }

        $result = GalleryEmbed::handleRequest();
        if (!$result['isDone']) {
                list($title, $css, $javascript) = GalleryEmbed::parseHead($result['headHtml']);
                if (!empty($javascript)) {
                        drupal_set_html_head(implode("\n",$javascript));
                }
                drupal_set_html_head(implode("\n",$css));
                drupal_set_title($title);
                print theme('page', $result['bodyHtml']);
        }
}

/**
* fetch a galleryEmbed object
*/
function _gallery_init($full = false) {

        global $user, $base_url;

        $galleryDir = variable_get('gallery_dir', 'gallery2/');
        $embedUri = $base_url . '/index.php?q=gallery';
        //$embedUri = $base_url . '/gallery';     //possible with clean url enabled
        $g2Uri = '/'.$galleryDir;

        require_once($galleryDir . 'embed.php');

        if ($user->uid==0 && module_exist('locale'))
        {
                $result = db_query('SELECT locale, name FROM {locales_meta} WHERE isdefault = 1');
                $row = db_fetch_object($result);
                $lang = $row->locale;
        } else {
                $lang = $user->language;
                if(empty($lang))
                {
                        $result = db_query('SELECT locale, name FROM {locales_meta} WHERE isdefault = 1');
                        $row = db_fetch_object($result);
                        $lang = $row->locale;
                }
        }

        $params = array('embedUri' => $embedUri,
                        'g2Uri' => $g2Uri,
                        'loginRedirect' => url('user/login'),
                        'activeUserId' => $user->uid,
                        'activeLanguage' => $lang,
                        'fullInit' => $full);

        $ret = GalleryEmbed::init($params);

  if ($ret) {
        if ($ret->getErrorCode() & ERROR_MISSING_OBJECT) {
                // Our user mapping is missing.  Make a mapping, or create a new user.
                $g2_user = null;
                // Get the G2 user that matches the Drupal username
                list ($ret, $g2_user) = GalleryCoreApi::fetchUserByUsername($user->name);
      if ($ret) {
                  if ($ret && !($ret->getErrorCode() & ERROR_MISSING_OBJECT)) {
                        return array(false, $ret);
                }
        }

                if (!isset($g2_user)) {
                        // No G2 user with a matching username.  If this is the admin user, we're going to
                        // try a little harder and match it to the oldest admin in G2.
                        if ($user->uid == 1) {
                                list ($ret, $admin_group_id) =
                                        GalleryCoreApi::getPluginParameter('module', 'core', 'id.adminGroup');
                                if ($ret) {
                                        return array(false, $ret);
                        }

                                list ($ret, $g2_users) = GalleryCoreApi::fetchUsersForGroup($admin_group_id);
                                if ($ret) {
                                        return array(false, $ret);
                        }

                                $keys = array_keys($g2_users);
                                $g2_user_name = $users[$keys[0]];
                                list ($ret, $g2_user) = GalleryCoreApi::fetchUserByUsername($g2_user_name);
                                if ($ret) {
                                        return array(false, $ret);
                        }
                        }
                }

                if (isset($g2_user)) {
                        $ret = GalleryEmbed::addExternalIdMapEntry($user->uid, $g2_user->getId(), 'GalleryUser');
                        if ($ret) {
                                return array(false, $ret);
                }
                } else {
                        // No matching G2 user found -- create one.
                        $ret = GalleryEmbed::createUser($user->uid, array('username' => $user->name,
                                'email' => $user->mail,
                                'fullname' => $user->name,
                                'language' => $user->language,
                                'hashedpassword' => $user->pass,
                                'hashmethod' => 'md5'));
                        if ($ret) {
                                return array(false, $ret);
                }
                }
        }
        }

        return array(true, null);
}

function gallery_error($message, $ret) {
        $error_mode = variable_get('gallery_error_mode', array());
        if (in_array(2, $error_mode)) {
                drupal_set_message($message);
        }

        if (isset($ret)) {
                $full_message = $message . '<br/>' . $ret->getAsHtml();
        } else {
                $full_message = $message;
        }

        if (in_array(1, $error_mode)) {
                watchdog('gallery', $full_message, WATCHDOG_ERROR);
        }
}
?>