<?php
/**
 * Class Minify_Logger 
 * @package Minify
 */

/** 
 * Message logging class
 * 
 * @package Minify
 * @author Stephen Clay <steve@mrclay.org>
 *
 * @todo lose this singleton! pass log object in Minify::serve and distribute to others
 */
class Minify_Logger {

 /**
 * Set logger object. 
 *
 * The object should have a method "log" that accepts a value as 1st argument and
 * an optional string label as the 2nd.
 *
 * @param mixed $obj or a "falsey" value to disable
 * @return null
 */
 public static function setLogger($obj = null) {
 self::$_logger = $obj
 ? $obj
 : null;
 }
 
 /**
 * Pass a message to the logger (if set)
 *
 * @param string $msg message to log
 * @return null
 */
 public static function log($msg, $label = 'Minify') {
 if (! self::$_logger) return;
 self::$_logger->log($msg, $label);
 }
 
 /**
 * @var mixed logger object (like FirePHP) or null (i.e. no logger available)
 */
 private static $_logger = null;
}