<?php

/**
 * This file is part of the Froxlor project.
 * Copyright (c) 2003-2009 the SysCP Team (see authors).
 * Copyright (c) 2010 the Froxlor Team (see authors).
 *
 * For the full copyright and license information, please view the COPYING
 * file that was distributed with this source code. You can also view the
 * COPYING file online at http://files.froxlor.org/misc/COPYING.txt
 *
 * @copyright  (c) the authors
 * @author     Michael Kaufmann <mkaufmann@nutime.de>
 * @author     Froxlor team <team@froxlor.org> (2010-)
 * @license    GPLv2 http://files.froxlor.org/misc/COPYING.txt
 * @package    Logger
 *
 * @link       http://www.nutime.de/
 * 
 * Logger - Froxlor-Base-Logger-Class
 */

class FroxlorLogger
{
	/**
	 * Userinfo
	 * @var array
	 */
	private $userinfo = array();

	/**
	 * Settings array
	 * @var settings
	 */
	private $settings = array();

	/**
	 * LogTypes Array
	 * @var logtypes
	 */
	static private $logtypes = null;

	/**
	 * Logger-Object-Array
	 * @var loggers
	 */
	static private $loggers = null;

	/**
	 * Class constructor.
	 *
	 * @param array userinfo
	 * @param array settings
	 */
	protected function __construct($userinfo, $settings) {
		$this->userinfo = $userinfo;
		$this->settings = $settings;
		self::$logtypes = array();

		if (!isset($this->settings['logger']['logtypes'])
		   && (!isset($this->settings['logger']['logtypes']) || $this->settings['logger']['logtypes'] == '')
		   && isset($this->settings['logger']['enabled'])
		   && $this->settings['logger']['enabled']
		) {
			self::$logtypes[0] = 'syslog';
			self::$logtypes[1] = 'mysql';
		}  else {
			if (isset($this->settings['logger']['logtypes'])
			   && $this->settings['logger']['logtypes'] != ''
			) {
				self::$logtypes = explode(',', $this->settings['logger']['logtypes']);
			} else {
				self::$logtypes = null;
			}
		}
	}

	/**
	 * Singleton ftw ;-)
	 *
	 */
	static public function getInstanceOf($_usernfo, $_settings)
	{
		if (!isset($_usernfo)
		   || $_usernfo == null
		) {
			$_usernfo = array();
			$_usernfo['loginname'] = 'unknown';
		}

		if (!isset(self::$loggers[$_usernfo['loginname']])) {
			self::$loggers[$_usernfo['loginname']] = new FroxlorLogger($_usernfo, $_settings);
		}

		return self::$loggers[$_usernfo['loginname']];
	}

	public function logAction ($action = USR_ACTION, $type = LOG_NOTICE, $text = null) {

		if (self::$logtypes == null) {
			return;
		}

		if ($this->settings['logger']['log_cron'] == '0'
		   && $action == CRON_ACTION
		) {
			return;
		}

		foreach (self::$logtypes as $logger) {

			switch ($logger)
			{
				case 'syslog':
					$_log = SysLogger::getInstanceOf($this->userinfo, $this->settings);
					break;
				case 'file':
					try
					{
						$_log = FileLogger::getInstanceOf($this->userinfo, $this->settings);
					}
					catch(Exception $e)
					{
						if ($action != CRON_ACTION) {
							standard_error('logerror', $e->getMessage());
						} else {
							echo "Log-Error: " . $e->getMessage();
						}
					}
					break;
				case 'mysql':
					$_log = MysqlLogger::getInstanceOf($this->userinfo, $this->settings);
					break;
				default:
					$_log = null;
					break;
			}

			if ($_log != null) {
				try {
					$_log->logAction($action, $type, $text);
				} catch(Exception $e) {
					if ($action != CRON_ACTION) {
						standard_error('logerror', $e->getMessage());
					} else {
						echo "Log-Error: " . $e->getMessage();
					}
				}
			}
		}
	}

	public function setCronLog($_cronlog = 0) {

		$_cronlog = (int)$_cronlog;

		if ($_cronlog != 0
		   && $_cronlog != 1
		) {
			$_cronlog = 0;
		}

		$stmt = Database::prepare("
			UPDATE `" . TABLE_PANEL_SETTINGS . "` SET
			`value` = :value
			WHERE `settinggroup`='logger' AND `varname`='log_cron'"
		);
		Database::pexecute($stmt, array('value' => $_cronlog));
		return true;
	}
}