<?php defined("SYSPATH") or die("No direct script access.");
/**
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2009 Bharat Mediratta
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
 */
class image_block_block_Core {
  static function get_site_list() {
    return array("random_image" => t("Random image"));
  }

  static function get($block_id, $theme) {
    $block = "";
    switch ($block_id) {
    case "random_image":
      $block = new Block();
      $block->css_id = "g-image-block";
      $block->title = t("Random image");
      $block->content = new View("image_block_block.html");

      $random = ((float)mt_rand()) / (float)mt_getrandmax();

      $items = ORM::factory("item")
        ->viewable()
        ->where("type !=", "album")
        ->where("rand_key < ", $random)
        ->orderby(array("rand_key" => "DESC"))
        ->find_all(1);

      if ($items->count() == 0) {
        // Try once more.  If this fails, just ditch the block altogether
        $items = ORM::factory("item")
          ->viewable()
          ->where("type !=", "album")
          ->where("rand_key >= ", $random)
          ->orderby(array("rand_key" => "DESC"))
          ->find_all(1);
      }

      if ($items->count() > 0) {
        $block->content->item = $items->current();
      } else {
        $block = "";
      }
      break;
    }

    return $block;
  }
}