<?php 

class SystemException extends CoreException{}

class SystemController {
	
	private static function logMessage($level,$message,$data=null) {
		LoggingFacilityManager::getLogger("core")->log($level,$message,$data,true);
	}
	
	public static function shellExec($cmdName,$cmdParams="",$sudo=false){
		$myCmd=($sudo?"sudo ":"").$cmdName.($cmdParams!=""?" ".$cmdParams:"");
		
		self::logMessage(LoggingFacility::$LEVEL_DEBUG,"log.sysctl.tryexecute",$myCmd." 2>&1");
		
		$answers=array();
		$execReturn=null;
		exec($myCmd." 2>&1",$answers,$execReturn);
		$return=new SystemAnswer($execReturn,$answers);
		if ($return->status!=0){
			if ( is_array($return->messages) && sizeof($return->messages)>0 ){
				foreach ($return->messages as $answer){
					self::logMessage(LoggingFacility::$LEVEL_DEBUG,$answer);
				}
			}
			self::logMessage(LoggingFacility::$LEVEL_ERROR,"log.sysctl.cantexecute",$myCmd." 2>&1",true);
// 			$catParameters=array($myCmd,$return->messages[sizeof($return->messages)-1],$return);
			throw new SystemException("Error while executing command '".$myCmd."'. Last message '".$return->messages[sizeof($return->messages)-1]."'");
		}
		
		self::logMessage(LoggingFacility::$LEVEL_INFO,"log.sysctl.correctlyexecute",$myCmd." 2>&1",true);
		return $return;
	}
	
	public static function executeCustomCommand($cmdName,$cmdParams="",$sudo=false){
		$binpath = GlobalVariables::get("config")->paths->binaries;
		return self::shellExec($binpath."/".$cmdName,$cmdParams,$sudo);
	}
	
// 	public static function executeTask($cmdName,$cmdParams="",$sudo=false){
// 		$basePath = GlobalVariables::get("config")->paths->task;
// 		return self::shellExec($basePath."/".$cmdName,$cmdParams,$sudo);
// 	}
	
	public static function mountRo($path) {
		return self::executeCustomCommand("mountro",'"'.$path.'"');
	}
	
	public static function mountRw($path) {
		return self::executeCustomCommand("mountrw",'"'.$path.'"');
	}
	
	public static function cp($source,$dest,$useSudo=false){
		return self::shellExec("cp",'"'.$source.'" "'.$dest.'"',$useSudo);
	}
	
	public static function cpRec($source,$dest,$useSudo=false){
		return self::shellExec("cp",'-r "'.$source.'" "'.$dest.'"',$useSudo);
	}
	
	public static function mv($source,$dest,$useSudo=false){
		return self::shellExec("mv",'"'.$source.'" "'.$dest.'"',$useSudo);
	}
	
	public static function touch($path,$useSudo=false){
		return self::shellExec("touch",'"'.$path.'"',$useSudo);
	}
	
	public static function mkdir($path,$useSudo=false){
		return self::shellExec("mkdir",'"'.$path.'"',$useSudo);
	}
	
	public static function rm($path,$useSudo=false){
		return self::shellExec("rm",'"'.$path.'"',$useSudo);
	}
	
	public static function wget($targetPage,$destFile,$useSudo=false){
		return self::shellExec("wget",'-O "'.$destFile.'" '.$targetPage,$useSudo);
	}
	
}

class SystemAnswer {
	public $status;
	public $messages;
	
	public function __construct($status,$messages){
		$this->status=$status;
		$this->messages=$messages;
	}
}
?>