<?php
/**
 * AgileBill - Open Billing Software
 *
 * This body of work is free software; you can redistribute it and/or
 * modify it under the terms of the Open AgileBill License
 * License as published at http://www.agileco.com/agilebill/license1-4.txt
 *
 * Originally authored by Tony Landis, AgileBill LLC
 *
 * Recent modifications by Deon George
 *
 * @author Deon George <deonATleenooksDOTnet>
 * @copyright 2009 Deon George
 * @link http://osb.leenooks.net
 *
 * @link http://www.agileco.com/
 * @copyright 2004-2008 Agileco, LLC.
 * @license http://www.agileco.com/agilebill/license1-4.txt
 * @author Tony Landis <tony@agileco.com>
 * @package AgileBill
 * @subpackage Module:Task
 */

/**
 * The main AgileBill Task Class
 *
 * @package AgileBill
 * @subpackage Module:Task
 */
class task extends OSB_module {
	/**
	 * Run all scheduled tasks
	 */
	public function run_all() {
		# Ensure that tasks complete and dont hang on running=1
		set_time_limit(2*60*60);

		# Loop through the tasks:
		global $VAR;

		$db = &DB();
		$result = $db->Execute(sqlSelect($db,'task','*','(running=0 OR running IS NULL) AND status=1'));
		if ($result && $result->RecordCount() > 0) {
			include_once(PATH_INCLUDES.'cron/cron.inc.php');
			$cron = new cron;

			while (! $result->EOF) {
				$_r  = false;
				$_s  = (int) $result->fields['date_start'];
				$_e  = (int) $result->fields['date_expire'];
				$_l  = (int) $result->fields['date_run'];
				$_c  = sprintf('%s %s %s %s %s',
					$result->fields['int_min'],
					$result->fields['int_hour'],
					$result->fields['int_month_day'],
					$result->fields['int_month'],
					$result->fields['int_week_day']);
				$_n = (int) time();
				if (! $_l > 0)
					$_l = $_n-86400*365;

				# Verify it has not expired:
				if ($_s <= $_n || $_s == '' || $_s == '0') {
					# Verify it is past the start date:
					if ($_e >= $_n || $_e == '' || $_e == '0') {
						# Verify that it is time to run:
						if ($cron->due($_l,$_n,$_c)) {
							# Run the task:
							$this->id = $result->fields['id'];
							$this->run($VAR);
						}
					}
				}
				$result->MoveNext();
			}
		}
	}

	/**
	 * Run a task
	 *
	 * @uses task_log
	 */
	public function run($VAR) {  
		global $VAR,$C_auth,$_ENV,$_SERVER,$_COOKIE,$C_list;

		$noauth = false;
		$debug_out = false;
		if (isset($_ENV['S']) ||
			(isset($_ENV['SESSIONNAME']) && $_ENV['SESSIONNAME'] == 'Console') ||
			(isset($_SERVER['SESSIONNAME']) && $_SERVER['SESSIONNAME'] == 'Console') ||
			(isset($_SERVER['CLIENTNAME']) && $_SERVER['CLIENTNAME'] == 'Console') ||
			empty($_COOKIE)) {
			$debug_out = true;
			$noauth = true;

		} elseif($C_auth->auth_method_by_name('task','run')) {
			$noauth = true;

		} else {
			$noauth = false;
		}

		if (isset($this->id))
			$id = $this->id;
		elseif (isset($VAR['id']))
			$id = $VAR['id'];
		else
			return;

		# Get task details
		$db = &DB();
		$result = $db->Execute(sqlSelect($db,'task','*',array('id'=>$id)));

		if (! $result || $result->RecordCount() == 0)
			return;

		$type = $result->fields['type'];
		$cmd  = $result->fields['command'];
		$log  = $result->fields['log'];

		# Record task running
		$db->Execute(sqlUpdate($db,'task',array('running'=>1),array('id'=>$id)));

		# Run task
		switch ($type) {
			case 0:
				# Internal function:
				global $C_method;
				$arr = explode(":",$cmd);

				if ($noauth) {
					# run from console, no auth req
					$C_method->exe_noauth($arr[0],$arr[1]);
				} else {
					# run from web, auth required
					$C_method->exe($arr[0],$arr[1]);
				}

				if ($C_method->result)
					$result = 1;
				else
					$result = 0;

				@$message = $C_method->error;
				break;

			case 1:
				$message = `$cmd`;
				$result = 1;
				break;

			default:
				printf('ERROR: Unknown task type [%s]',$type);
		}

		# Update last run date & flip run toggle		 
		$db->Execute(sqlUpdate($db,'task',array('running'=>0,'date_run'=>time()),array('id'=>$id)));

		# Store task log if required
		if ($log && $C_list->is_installed('task_log')) { 
			include_once(PATH_MODULES.'task_log/task_log.inc.php');
			$tl = new task_log;

			$VAR['task_log_task_id'] = $id;
			$VAR['task_log_result'] = $result;
			$VAR['task_log_message'] = $message;
			if (! isset($VAR['_page_current']))
				$VAR['_page_current'] = '';
			$result = $tl->add($VAR);
		}

		# If admin, print success message
		if (DEFAULT_ADMIN_THEME == SESS_THEME)  {
			global $C_translate,$C_debug;
			$C_debug->alert($C_translate->translate('true','',''));
		}
	}
}
?>