<?php
/*
Author: 		Riccardo Di Dato
Creation Date:	04/feb/2013
*/

abstract class LoggingFacility {
	
	public static $LEVEL_ERROR = 1;
	public static $LEVEL_WARNING = 2;
	public static $LEVEL_INFO = 3;
	public static $LEVEL_DEBUG = 4; 
	
	private $myname;
	private $useDate;
	private $mylevel;
	private $catalogManager;
	
	public function __construct($name,$catalogMan,$prependDate=false) {
		$this->myname = $name;
		$this->useDate = $prependDate;
		$this->mylevel = self::$LEVEL_ERROR;
		$this->catalogManager = $catalogMan; 
	}
	
	
	public function setLoggingLevel($level) {
		if ($level < self::$LEVEL_ERROR) $this->mylevel = self::$LEVEL_ERROR;
		else if ($level > self::$LEVEL_DEBUG) $this->mylevel = self::$LEVEL_DEBUG;
		else $this->mylevel = $level;
	}
	
	
	public function log($level, $message, $data = null,$usecatalog = false) {
		if($level <= $this->mylevel) {
			if(!is_array($data)) $data = array($data);
			if($usecatalog) $finalMessage = $this->catalogManager->getCatalog($message,$data);
			else $finalMessage = $message; 
			if($this->useDate) {
				$formattedDate = strftime("%d/%m/%Y %H:%M:%S",time());
				$finalMessage = $this->myname . " " . $this->getIndicationForLevel($level)
								 . " - " . $formattedDate . " > " . $finalMessage;  
			}
			else {
				$finalMessage = $this->myname . " " . $this->getIndicationForLevel($level)
								 . " > " . $finalMessage;  
			}
			
			$this->writelog($level,$finalMessage,$data);
		}
	}
	
	protected abstract function writelog($level,$message,&$data);
	protected abstract function getIndicationForLevel($level);
	
	public function getName() {
		return $this->myname;
	}
}

?>