<?php defined("SYSPATH") or die("No direct script access.");
/**
 * 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 randimg_Core {

  static function randimg_link() {

    // Accept an "album" query parameter to allow the random image to be
    // limited to a specific album name.
    $album_id = null;
    if ( $album_name = Input::instance()->get("album") ) {
        if ( $album_item = ORM::factory("item")
                 ->where("name", "=", $album_name)
                 ->viewable()
                 ->find() )
        {
            $album_id = $album_item->id;
        }
    }

    $attempts=0;
    do {
        if ( $album_id ) {
            $item = item::random_query()
                ->where("type", "!=", "album")
                ->where("type", "!=", "movie")
                ->where("parent_id", "=", $album_id)
                ->find_all(1)
                ->current();
        } else {
            $item = item::random_query()
                ->where("type", "!=", "album")
                ->where("type", "!=", "movie")
                ->find_all(1)
                ->current();
        }
    } while ( !$item && $attempts++ < 5 );

	$randimg = new View("randimg.html");
	$randimg->item = $item;
	
    return $randimg;

  }

}