<?php
/**
 * wbFile auxiliary class to handle files
 * 
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@exit0.net>
 * @copyright 2006 by http://wombat.exit0.net
 * @package wombat
 * @subpackage file
 */
 
/**
 * wbFile auxiliary class to handle files
 *
 * @version 1.0.0
 * @package wombat
 * @subpackage file
 */
class wbFile
{
   /**
    * touch file
    * 
    * @param string $file    
    * @return bool true on success
    */
    static public function touch( $file, $mkdir = true ) {
    
        if( !file_exists( $file ) ) {
            if( !self::mkDir( dirname( $file ) ) ) {
                return false;
            }
            touch( $file );
            chmod( $file, 0666 );
        }
    
        return true;
    }
    
   /**
    * mkdir
    * 
    * @param string $dir
    * @param bool $recursive    
    * @return bool true on success
    */
    static public function mkDir( $dir, $recursive = true ) {
        if( is_dir( $dir ) ) {
            return true;
        }
        mkdir( $dir, 0777, $recursive );
        return true;
    }

   /**
    * load content from file
    * 
    * @param string $file
    * @return string content of file
    */
    static public function load( $file ) {
        if( !is_file( $file ) ) {
            return false;
        }
        return file_get_contents( $file );
    }
    
   /**
    * save content to file
    * 
    * @param string $file    
    * @param string content of file
    * @return bool true on success
    */
    static public function save( $file, $content ) {
        if( !file_exists( $file ) ) {
            self::touch( $file );
        }
        return file_put_contents( $file, $content );
    }
    
   /**
    * check file age
    * 
    * @param string $file
    * @param string $age in seconds
    * @param bool $isFile
    * @return bool if file is newer
    */
    static public function isNewer( $file, $age, $isFile = false ) {
        if( !is_file( $file ) ) {
            return false;
        }
        
        if( $isFile ) {
            $minAge =   filemtime( $age );
        }
        else {
            $minAge =   time() - $age;
        }
        
        if( filemtime( $file ) > $minAge ) {
            return true;
        }
        
        return false;
    }
    
}
?>