<?php
/**
* Simple Logger Class
**/
class adsenseiLogger {
  var $file, $path, $level, $stream;
  const INFO  = 4;
  const DEBUG = 3;
  const WARN  = 2;
  const ERROR = 1;
  const FATAL = 0;

	function __construct($file, $level)
	{
		$this->file = $file;
		$this->level = $level;
		$this->path = ADSENSEI_PLUGIN_DIR . "logs/$this->file";
                $this->folder = ADSENSEI_PLUGIN_DIR . "logs";
		$this->start();
	}

	function info($string)
	{
	  return $this->check_level(self::INFO) ? true : $this->log($string);
	}

	function warn($string)
	{
	  return $this->check_level(self::WARN) ? true : $this->log($string);
	}

	function debug($string)
	{
	  return $this->check_level(self::DEBUG) ? true : $this->log($string);
	}

	function error($string)
	{
	  return $this->check_level(self::ERROR) ? true : $this->log($string);
	}

	function fatal($string)
	{
	  return $this->check_level(self::FATAL) ? true : $this->log($string);
	}

	function clear()
	{
	  $this->close();
	  $this->open("w");
	  $this->close();
	  $this->open();
	}

	private function check_level($level)
	{
	  return $this->level < $level;
	}

        /* Log - Only when Quick AdSense debug mode is enabled
         */
	private function log($string)
	{
          global $adsensei_options;
          $enabled = isset($adsensei_options['debug_mode']) ? $adsensei_options['debug_mode'] : false;
          if ($enabled)
	  $this->write("[". date('l jS F Y : h:i:sa') . "] ". $string . "\r\n");

          return false;
	}

	private function write($string)
	{
	  return fwrite($this->stream, $string);
	}

        /* Check if debug mode is enabled
         *
         * @return bool
         */
	private function start()
	{
          global $adsensei_options;
          $enabled = isset($adsensei_options['debug_mode']) ? $adsensei_options['debug_mode'] : false;
          if ($enabled)
            return $this->open();

          return false;
	}

        /* Check if directory is writable
         *
         * @return bool
         */

        function checkDir(){
            $writable = is_writable($this->folder);
            if ($writable)
                return true;

            return false;
        }

        /* Open the log file
         *
         * @return stream
         */
	private function open($mode="a")
	{
          if ($this->checkDir())
	  return $this->stream = fopen($this->path, $mode);
          //or die("Cannot write to file '$this->path', please ensure '$this->path' is writable.");
	}

	private function close()
	{
	  return fclose($this->stream);
	}

}

?>