<?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 pages {
	
	private static $PAGE;
	
	private static function init(){
		if ( isset(self::$PAGE) ){ return TRUE; }
		//get engine from objects conf for __CLASS__
		$eng = configs::get('pagegen', 'engine');
		if ( $eng != 'db' AND $eng != 'conf' AND $eng != 'xml' ){
			errors::raise('Missing or Invalid engine option into pagegen configuration file !', CORE_LOG_FATAL, 'PGEN');
			return FALSE;
		}
		$c = 'page_'.$eng;
		self::$PAGE = new $c();
		return TRUE;
	}
	
	public static function exists($pid){
		if ( !self::init() ){ return FALSE; }
		return self::$PAGE->exists($pid);
	}
	
	public static function listall(){
		if ( !self::init() ){ return FALSE; }
		return self::$PAGE->listall();
	}
	
	public static function get_realm($pid){
		if ( !self::init() ){ return FALSE; }
		return self::$PAGE->get_infobypid('realm', $pid);
	}
	
	public static function get_challenge($pid){
		if ( !self::init() ){ return FALSE; }
		return self::$PAGE->get_infobypid('chal', $pid);
	}
	
	public static function get_type($pid){
		if ( !self::init() ){ return FALSE; }
		return self::$PAGE->get_infobypid('type', $pid);
	}
	
	public static function get_conf($pid){
		if ( !self::init() ){ return FALSE; }
		return self::$PAGE->get_infobypid('conf', $pid);
	}
	
	public static function get_parent($pid){
		if ( !self::init() ){ return FALSE; }
		return self::$PAGE->get_infobypid('parent', $pid);
	}
	
	public static function get_args($pid){
		if ( !self::init() ){ return FALSE; }
		$r = self::$PAGE->get_infobypid('args', $pid);
		if ( empty($r) ){ return; }
		return split(';',$r);
	}
	
	public static function get_title($pid){
		if ( !self::init() ){ return FALSE; }
		return self::$PAGE->get_infobypid('title', $pid);
	}
	
	public static function get_depth($pid){
		if ( !self::init() ){ return FALSE; }
		return self::$PAGE->get_infobypid('depth', $pid);
	}
	
	public static function is_hidden($pid){
		if ( !self::init() ){ return FALSE; }
		$r = self::$PAGE->get_infobypid('hidden', $pid);
		return ( $r == 1);
	}
	
	public static function get_childs($pid){
		if ( !self::init() ){ return FALSE; }
		return self::$PAGE->get_childs($pid);
	}
	
	public static function got_childpage($pid){
		if ( !self::init() ){ return FALSE; }
		return self::$PAGE->got_childpage($pid);
	}
	
	public static function get_pathto($pid){
		$o[] = self::get_title($pid);
		$depth = self::$PAGE->get_infobypid('depth', $pid);
		while( $depth != 0 ){
			$pid = self::get_parent($pid);
			$o[] = self::get_title($pid);
			$depth = self::$PAGE->get_infobypid('depth', $pid);
		}
		krsort($o);
		return implode('/', $o);
	}
	
	public static function getby_namelvl($name, $lvl){
		if ( !self::init() ){ return FALSE; }
		return self::$PAGE->pidby_namelvl($name, $lvl);
	}

}