<?php
/*
	+-----------------------------------------------------------------------------+
	| ILIAS open source                                                           |
	+-----------------------------------------------------------------------------+
	| Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
	|                                                                             |
	| 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
	+-----------------------------------------------------------------------------+
*/

/** 
* Stores all mediacast relevant settings.
* 
* @author Roland Küstermann <rkuestermann@mps.de>
* @version $Id$
* 
* 
* @ingroup ModulesMediaCast
*/
class ilMediaCastSettings
{
	private static $instance = null;
	private $defaultAccess = "users";
	private $purposeSuffixes = array();
	private $mimeTypes = array();

	/**
	 * singleton contructor
	 *
	 * @access private
	 * 
	 */
	private function __construct()
	{
	 	$this->initStorage();
		$this->read();	
	}
	
	/**
	 * get singleton instance
	 *
	 * @access public
	 * @static
	 *
	 */
	public static function _getInstance()
	{
		if(self::$instance)
		{
			return self::$instance;
		}
		return self::$instance = new ilMediaCastSettings();
	}

	/**
	 * set filetypes for purposes
	 *
	 * @access public
	 * 
	 */
	public function setPurposeSuffixes($purpose_filetypes)
	{
	 	$this->purposeSuffixes = $purpose_filetypes;
	}

	/**
	 * get filetypes for purposes
	 *
	 * @access public
	 * 
	 */
	public function getPurposeSuffixes()
	{
	 	return $this->purposeSuffixes;
	}

	public function getDefaultAccess() {
	    return $this->defaultAccess;
	}
	
	public function setDefaultAccess($value) {
	    $this->defaultAccess = $value == "users" ? "users" : "public";
	}
	
	/**
	 * @return array of mimetypes
	 */
	public function getMimeTypes() {
		return $this->mimeTypes;
	}
	
	/**
	 * @param unknown_type $mimeTypes
	 */
	public function setMimeTypes(array $mimeTypes) {
		$this->mimeTypes = $mimeTypes;
	}

	
	/**
	 * save 
	 *
	 * @access public
	 */
	public function save()
	{
		foreach ($this->purposeSuffixes as $purpose => $filetypes) {
			$this->storage->set($purpose . "_types", implode(",",$filetypes));
		}
		$this->storage->set("defaultaccess",$this->defaultAccess);
		$this->storage->set("mimetypes", implode(",", $this->getMimeTypes()));
	}

	/**
	 * Read settings
	 *
	 * @access private
	 * @param
	 * 
	 */
	private function read()
	{
		foreach ($this->purposeSuffixes as $purpose => $filetypes) {
			if ($this->storage->get($purpose."_types") != false) {
				$this->purposeSuffixes[$purpose] = explode(",",$this->storage->get($purpose."_types"));
			}
		}	
		$this->setDefaultAccess($this->storage->get("defaultaccess"));
		if ($this->storage->get("mimetypes"))
			$this->setMimeTypes(explode(",", $this->storage->get("mimetypes")));	
	}
	
	/**
	 * Init storage class (ilSetting)
	 * @access private
	 * 
	 */
	private function initStorage()
	{
	 	include_once('./Services/Administration/classes/class.ilSetting.php');
	 	$this->storage = new ilSetting('mcst');
	 	include_once('./Modules/MediaCast/classes/class.ilObjMediaCast.php');
	 	$this->purposeSuffixes = array_flip(ilObjMediaCast::$purposes);
	 	       
	 	$this->purposeSuffixes["Standard"] = array("mp3","flv","mp4","m4v","mov","wmv","gif","png");
        $this->purposeSuffixes["AudioPortable"] = array("mp3");
        $this->purposeSuffixes["VideoPortable"] = array("mp4","m4v","mov");
        $this->setDefaultAccess("users");
		require_once 'Services/MediaObjects/classes/class.ilObjMediaObject.php';		        
        $mimeTypes = array_unique(array_values(ilObjMediaObject::getExt2MimeMap()));
        sort($mimeTypes);
        $this->setMimeTypes($mimeTypes);
	}
}
?>