<?php
require_once(GALAXIA_LIBRARY.SEP.'src'.SEP.'common'.SEP.'Observer.php');
/**
 * Logging class
 * 
 * @package Galaxia
 * @license http://www.gnu.org/copyleft/gpl.html GPL
 */
class Logger extends Observer {
	/**
	 * @var string File's full path where logging info will be stored
	 * @access private 
	 */
	var $_filename;
	
	/**
	 * Constructor
	 * 
	 * @param int $filename 
	 * @return object Logger
	 * @access public 
	 */
	function Logger($filename) {
		$this->_filename = $filename;
		$fp = fopen($this->_filename,"a");
		if(!$fp) {
		  trigger_error("Logger cannot append to log file: ".$this->filename,E_USER_WARNING);
		}
		if($fp) {
		fclose($fp);
		}

	}
	
	/**
	 * Adds content to log file
	 * 
	 * @param string $event Event that triggered the notify action
	 * @param string $msg Message about the event
	 * @access public
	 * @return void 
	 */
	function notify($event,$msg) {
		// Add a line to the log file.
		$fp = fopen($this->_filename,"a");
		$date = date("[d/m/Y h:i:s]");
		$msg=trim($msg);
		fputs($fp,$date." ".$msg."\n");
		fclose($fp);
	}
}
?>