<?php
/**
 * 
 * @author  Benjamin Gillissen <hide@address.com>
 * 
 * 
 *	**************************************************************

	Copyright (C) 2009  Benjamin Gillissen
	
	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 at:
	http://www.gnu.org/copyleft/gpl.html

 *	**************************************************************
 */

class cookies {
	
	private static $_COOK;
	
	private static function load($cookref=NULL){
		$cookref = self::getref($cookref);
		if ( FALSE === $cookref ){
			errors::raise('Invalid Cookref, abording load', CORE_LOG_ERROR, 'COOK'); 
			return FALSE; 
		}
		if ( !isset(self::$_COOK[$cookref]) ){
			if ( $cookref == 'failsave' ){
				errors::raise('No Default CookRef specified, using failsave (nocrypt, one year)', CORE_LOG_WARNING, 'COOK');
				$conf = Array(	'cipher' => FALSE, 
								'expire' => 60*60*24*256);
			} else {
				$conf = configs::get('cookies', $cookref);
			}
			if ( FALSE !== $conf['cipher'] ){
				self::$_COOK[$cookref] = new cooky($cookref, $conf['expire'], $conf['cipher'], $conf['mode'], $conf['key']);
			} else {
				self::$_COOK[$cookref] = new cooky($cookref, $conf['expire'], FALSE);
			}
		}
		return $cookref;
	}
	
	private static function getref($cookref){
		if ( NULL === $cookref ){		//no args gived, we return default session handler
			if ( FALSE !== ( $cookref = configs::get('cookies', 'Default')) ){ 
				return $cookref;
			} else {
				return 'failsave';
			}
		} elseif ( is_array(configs::get('cookies', $cookref)) ){ return $cookref; }
		return FALSE;
	}
	
	public static function isdefined($var, $cookref=NULL){
		$cookref = self::load($cookref);
		if ( FALSE === $cookref ){ return FALSE; }
		return self::$_COOK[$cookref]->isdefined($var);	
	}
	
	public static function read($var, $cookref=NULL){
		$cookref = self::load($cookref);
		if ( FALSE === $cookref ){ return FALSE; }
		return self::$_COOK[$cookref]->read($var);
	}
	
	public static function set($var, $val, $cookref=NULL){
		$cookref = self::load($cookref);
		if ( FALSE === $cookref ){ return FALSE; }
		return self::$_COOK[$cookref]->set($var, $val);
	}
	
	public static function del($var, $cookref=NULL){
		$cookref = self::load($cookref);
		if ( CORE::isError($cookref) ){ return $cookref; }
		return self::$_COOK[$cookref]->del($var);
	}
	
	public static function clear($cookref=NULL){
		$cookref = self::load($cookref);
		if ( CORE::isError($cookref) ){ return $cookref; }
		return self::$_COOK[$cookref]->clear();	
	}
}