<?php
/* $Id$ */
namespace MCMS\AutoLoader;

use Mammut\Log\Logger;
(defined('MAMMUT') && (basename(__FILE__) != basename($_SERVER['PHP_SELF']))) or die('ACCESS DENIED');

/**
 * MCMS non-lib class autoloader implementation.
 *
 * This loader imports
 *
 * @author Stefan Daurer <s.daurer@q-spot.org>
 * @package MCMS\System
 * @since 1.1.0.1
 */
class MMAutoLoader extends \Mammut\StrictObject implements \Mammut\AutoLoader\iAutoLoader {

	private function __construct() {
	}

	public static function loadClass($className) {
		Logger::getInstance(__CLASS__)->trace('loadClass: '.$className);
		if(!strstartswith($className, 'MCMS\\_\\'))
			return;
		$ns = explode('\\', $className);
		if(!isset($ns[2]))
			throw new \InvalidArgumentException("Missing type part");
		$basepath = false;
		$prefix = 'cls';
		$type = strtolower($ns[2]);
		switch($type) {

			case 'com':
			case 'comx':
				$basepath = ($type == 'com') ? _COMPATH_ : _COMPATHX_;
				$prefix = 'com';
			break;

			case 'mod':
			case 'modx':
				$prefix = 'mod';
				$basepath = ($type == 'mod') ? _MODPATH_ : _MODPATHX_;
				foreach($ns as $nr=>&$part) {
					if($part == '_' && $nr > 2) {
						$part = '_lib_';
						$prefix = 'cls';
					}
				}
			break;

			case 'feat':
			case 'featx':
				$basepath = ($type == 'feat' ) ? _FEATUREPATH_ : _FEATUREPATHX_;
				foreach($ns as $nr=>&$part)
					if($part == '_')
						$part = '_lib_';
			break;

			case 'plugin':
			case 'pluginx':
				$prefix = 'pin';
				$basepath = ($type == 'plugin' ) ? _PLUGINPATH_ :_PLUGINPATHX_;
				foreach($ns as $nr=>&$part)
					if(strtolower($part) == '_admin_' && $nr > 2) {
						$prefix = 'mod';
					}
					elseif($part == '_' && $nr > 2) {
						$prefix = 'cls';
						$part = '_lib_';
					}
			break;

			default:
				throw new \InvalidArgumentException("Unknown or unsupported type part '{$ns[2]}'");
		}
		$i = count($ns) - 1;
		$ns[$i] = $prefix . '.' . strtolower($ns[$i]) . '.php';
		
		unset($ns[0], $ns[1], $ns[2]);
		
		$filename = $basepath . __DS__ . strtolower(implode(__DS__, $ns));
		Logger::getInstance(__CLASS__)->trace('filename to use: '.$filename);
		if(include_exists($filename)) {
			include ($filename);
			return true;
		}
		return false;
	}
}