<?
/*-----------------------------------------------------------------------------
	The contents of this file are subject to the Mozilla Public License
	Version 1.1 (the "License"); you may not use this file except in
	compliance with the License.You may obtain a copy of the License at
	http://www.mozilla.org/MPL/MPL-1.1.html
	
	Software distributed under the License is distributed on an "AS IS"
	basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
	License for the specific language governing rights and limitations
	under the License.
	
	The Original Code is Fever Framework code.
	
	The Initial Developer of the Original Code is Romain Ecarnot.
	Portions created by Initial Developer are Copyright (C) 2006
	the Initial Developer. All Rights Reserved.
	
	Contributor(s):
	
	Unless required by applicable law or agreed to in writing, software
	distributed under the License is distributed on an "AS IS" BASIS,
	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	See the License for the specific language governing permissions and
	limitations under the License.
-----------------------------------------------------------------------------*/	

class PHPFileSystem
{
	//-------------------------------------------------------------------------
	// Private properties
	//-------------------------------------------------------------------------
	
	var $rootName = 'SSFileSystem/';
	var $xmlFS;
	
	
	//-------------------------------------------------------------------------
	// Public API
	//-------------------------------------------------------------------------
	
	function PHPFileSystem()
	{
		$this->_initFileSystem();
	}
	
	function getContent()
	{
		$this->xmlFS = '';
		$this->_getAllContent( $this->_getFullQualifiedPath( '' ) );
		
		return $this->xmlFS;
	}
	
	function isDirectory( $path )
	{
		if( is_dir( $this->_getFullQualifiedPath( $path ) ) ) return true;
		else return false;
	}
	
	function createDirectory( $path )
	{
		$newDir = $this->_getFullQualifiedPath( $path );
		
		if( !is_dir( $newDir ) )
		{
			return mkdir( $newDir, 0777 );
		}
		else return false; 
	}
	
	function deleteDirectory( $path )
	{
		$dir = $this->_getFullQualifiedPath( $path );
		return $this->_deleteAllDirectory( $dir );
	}
	
	function renameDirectory( $path, $newName ) 
	{
		$oldPath = $this->_getFullQualifiedPath( $path );
		$newPath = $this->_getFullQualifiedPath( $newName );
		
		if( !is_dir( $oldPath ) ) return false;
		else
		{
			if( rename( $oldPath, $newPath ) ) return true;
			else return false;
		} 
	}
	
	function isFile( $path )
	{
		if( is_file( $this->_getFullQualifiedPath( $path ) ) ) return true;
		else return false;
	}
	
	function deleteFile( $path ) 
	{
		$file = $this->_getFullQualifiedPath( $path );
		
		if( is_file( $file ) )
		{
			unlink( $file );
			return true;
		}
		else return false; 
	}
	
	function renameFile( $path, $newName )
	{
		$oldPath = $this->_getFullQualifiedPath( $path );
		$newPath = $this->_getFullQualifiedPath( $newName );
		
		if( !is_file( $oldPath ) ) return false;
		else
		{
			if( rename( $oldPath, $newPath ) ) return true;
			else return false;
		} 
	}
	
	function readFileContent( $path ) 
	{
		$file = $this->_getFullQualifiedPath( $path );
		
		if( !is_file( $file ) ) return 'null';
		
		$content = file_get_contents( $file );
		if( $content == FALSE ) return 'null';
		else return $content;
	}
		
	function writeToFile( $data, $path )
	{
		$file = $this->_getFullQualifiedPath( $path );
		
		if( !$handle = fopen( $file, "w" ) ) return false;
		if ( fwrite( $handle, $data ) === FALSE ) return false;
		
		fclose( $handle );
		return true; 
	}
	
	function appendToFile( $data, $path )
	{
		$file = $this->_getFullQualifiedPath( $path );
		
		if( !$handle = fopen( $file, "a" ) ) return false;
		if ( fwrite( $handle, $data ) === FALSE ) return false;
		
		fclose( $handle );
		return true; 
	}
	
	
	//-------------------------------------------------------------------------
	// Private implementation
	//-------------------------------------------------------------------------
	
	function _initFileSystem()
	{
		if( !is_dir( $this->rootName ) )
		{
			mkdir ( $this->rootName, 0777 );
		}
	}
	
	function _getFullQualifiedPath( $path )
	{
		return $this->rootName.$path;
	}
	
	function _getAllContent( $dir )
	{
		if ( substr( $dir,-1 ) != "/" ) $dir .= "/";
		
		if( is_dir( $dir ) )
		{
			if ( ( $content = opendir( $dir ) ) !== false )
			{
				$nodeName = $this->_getDirName( $dir );
				if( !$nodeName ) $nodeName = 'root';
				
				$this->xmlFS .= '<' .  $nodeName . '>';
				
				while ( ( $item = readdir( $content ) ) !== false ) 
				{
					if ( $item != "." && $item != ".." )
					{
						if ( is_dir( $dir . $item ) ) $this->_getAllContent( $dir . $item );
						else if( is_file( $dir . $item ) ) $this->xmlFS .= '<' . $item . ' type="string" />';
					}
				}
				closedir( $content );
			}
			$this->xmlFS .= '</' . $nodeName . '>';
		}
	}
	
	function _deleteAllDirectory( $dir )
	{	
		if ( substr( $dir,-1 ) != "/" ) $dir .= "/";
		if ( !is_dir( $dir ) ) return false;
	
		if ( ( $content = opendir( $dir ) ) !== false )
		{
			while ( ( $item = readdir( $content ) ) !== false ) 
			{
				if ( $item != "." && $item != ".." )
				{
					if ( is_file( $dir . $item ) || is_link( $dir . $item ) ) unlink( $dir . $item );
					else if ( is_dir( $dir . $item ) ) $this->_deleteAllDirectory( $dir . $item );
				}
			}
			closedir($content);
			
			rmdir($dir);
	
			return true;
		}
		return false;
	}
	
	function _getDirName( $dir )
	{
		$dir = trim($dir, "/" );
		$dir = strrchr( $dir, "/" );
		return trim( $dir, "/" );  
	}
}

?>