<?php
/* $Id$ */
namespace MCMS\Service;

(defined('MCMS') && (basename(__FILE__) != basename($_SERVER['PHP_SELF']))) or die('ACCESS DENIED');

use Mammut\DB\Sql\Expression\Parameter;
use MCMS\System;
use MCMS\Model\Website;
use MCMS\_\Plugin\Cache\MCMS\SimpleCache\SimpleCache;
use Mammut\DB\DB;

/**
 * Module data service
 *
 * @since 1.1.0.0
 * @author Stefan Daurer <s.daurer@q-spot.org>
 * @package MCMS\System\Service
 */
class ModuleSvc extends ModuleSvcBase {
	
	private static $cache;

	private static function checkCache() {
		if(empty(self::$cache))
			self::$cache = new SimpleCache(); // TODO: optimize
	}

	public static function findModules($basepath, DB &$db, $pathhead = false) {
		if (!$pathhead)
			$pathhead = $basepath;
		$modules = array();
		if (file_exists($basepath.__DS__.'_info_.php')) {
			$info = array();
			$info['id'] = str_replace(__DS__,'.',substr($basepath,strlen($pathhead)+1));
			$info['uid'] = NULL;
			$info['title'] = 'Unnamed';
			$info['version'] = false;
			$info["autor"] = false;
			$info["home"] = false;
			$info["update"] = false;
			$info['class'] = false;
			$info['dir'] = $basepath;
			$info['urlpath'] = str_replace(__DS__,'/',substr($basepath,strlen( _BASEPATH_)));
			$info['icon'] = 
				file_exists($basepath.__DS__.'_admin_'.__DS__.'images'.__DS__.'icon16.png') ?
				$info['urlpath'].'/_admin_/images/icon16.png':
				false;
			$info['acl'] = [];
			$info["needs"] = [];
			$info["entries"] = [];
			$info = array_merge($info, array_from_file($basepath.__DS__.'_info_.php','info'));
			$info['abstract'] = (isset($info['abstract'])) && $info['abstract'] == true;
			$info['noinstall'] = isset($info['noinstall']) && $info['noinstall'] === true;
			$info['setup'] =  isset($info['setup']) ? $info['setup'] : NULL;
			$info['setupi'] =  isset($info['setupi']) ? $info['setupi'] : NULL;
			$modules[] = $info;
		}
	 	
		$files = scandir($basepath);
		foreach($files as $file) {
			if (is_dir($basepath.__DS__.$file) && preg_match('#^[a-zA-Z][a-zA-Z0-9_-]*$#',$file))
  				$modules = array_merge($modules, self::findModules($basepath.__DS__.$file, $db, $pathhead));
 		}
		return $modules;
	}
	
	public static function getInstalledModuleVersion($module) {
		$db = System::getInstance()->getDB();
		$info = $db->table('installinfos')->getObject([
				'type' => 'module',
				'key' => $module
		]);
		return !empty($info) ? $info->version : NULL;
	}
	
	public static function isModuleInstalled($module) {
		$v = self::getInstalledModuleVersion($module);
		return !empty($v);
	}
}