<?php 

/**
 * SFSManager - Storage and FileSystem Manager
 * Gestore degli storage e dei filesystem presenti sul dispositivo fisico
 * 
 * @author Riccardo Di Dato
 *
 */
	
class SFSException extends CataloguedException {}

class SFSManager {
	
	private static $fslist;
		
		
	public static function getFilesystemList() {
		if(self::$fslist == null || !is_array(self::$fslist) || sizeof(self::$fslist)==0) return null;
		return self::$fslist;
	}
		
	public static function addFilesystem($fsobj) {
		if (!($fsobj instanceof FSObject)) throw new SFSException("sfs.man.notafso"); 
		if(self::$fslist == null || !is_array(self::$fslist)) self::$fslist = array();
		
		self::$fslist[]=$fsobj;
	}
		
		
		
	public static function getFSObjByPath($path){
		$memory=null;
		foreach (self::$fslist as $fso){
			if (preg_match('|^'.$fso->getMountPoint().'|',$path)){
				if ($memory!=null){
					if (preg_match('|^'.$memory->getMountPoint().'|',$fso->getMountPoint())){
						$memory=$fso;
					}
				}
				else {
					$memory=$fso;
				}
			}
		}
		return $memory;
	}
		
	public static function readFile($path){
		$fso=self::getFSObjByPath($path);
		if($fso!=null){
			return $fso->readFile($path);
		}
	}
	
	public static function writeFile($content,$file){
		$fso=self::getFSObjByPath($file);
		if($fso!=null){
			return $fso->writeFile($content,$file);
		}
	}
	
	public static function appendToFile($content,$file){
		$fso=self::getFSObjByPath($file);
		if($fso!=null){
			return $fso->appendToFile($content,$file);
		}
	}
	
	public static function copyFile($source,$destination,$sudo=false){
		$fso=self::getFSObjByPath($destination);
		if($fso!=null){
			return $fso->copyFile($source,$destination,$sudo);
		}
	}
	
	public static function moveFile($source,$destination,$sudo=false){
		$fso=self::getFSObjByPath($destination);
		if($fso!=null){
			return $fso->moveFile($source,$destination,$sudo);
		}
	}
	
	public static function touchFile($path,$sudo=false){
		$fso=self::getFSObjByPath($path);
		if($fso!=null){
			return $fso->touchFile($path,$sudo);
		}
	}
	
	public static function deleteFile($path,$sudo=false){
		$fso=self::getFSObjByPath($path);
		if($fso!=null){
			return $fso->deleteFile($path,$sudo);
		}
	}

	public static function createDirectory($path,$sudo=false){
		$fso=self::getFSObjByPath($path);
		if($fso!=null){
			return $fso->createDirectory($path,$sudo);
		}
	}
	
	public static function copyDirectory($source,$destination,$sudo=false){
		$fso=self::getFSObjByPath($destination);
		if($fso!=null){
			return $fso->copyDirectory($source,$destination,$sudo);
		}
	}
	
	public static function fileExists($path){
		$fso=self::getFSObjByPath($path);
		if($fso!=null){
			return $fso->fileExists($path);
		}
	}
	
	public static function lsDir($path){
		$fso=self::getFSObjByPath($path);
		if($fso!=null){
			return $fso->lsDir($path);
		}
	}
	
	// Accepts file array or single directory
	public static function createArchive($source,$dest){
		$fso=self::getFSObjByPath($dest);
		if($fso!=null){
			return $fso->createArchive($dest,$source);
		}
	}
	
	public static function deleteDirectory($path,$sudo=false){
		$fso=self::getFSObjByPath($path);
		if($fso!=null){
			return $fso->deleteDirectory($path,$sudo);
		}
	}
	
}
?>