<?php/* @description     Transformation Style Sheets - Revolutionising PHP templating    * * @author          Tom Butler tom@r.je                                             * * @copyright       2017 Tom Butler <tom@r.je> | https://r.je/                      * * @license         http://www.opensource.org/licenses/bsd-license.php  BSD License * * @version         1.2                                                             */namespace Transphporm;class Rule {	private $query;	private $pseudo;	private $depth;	private $index;    private $file;	private $line;	private $properties = [];	private $lastRun = 0;	const S = 1;	const M = 60;	const H = 3600;	const D = 86400;	public function __construct($query, $pseudo, $depth, $index, $file, $line, array $properties = []) {		$this->query = $query;		$this->pseudo = $pseudo;		$this->depth = $depth;		$this->index = $index;        $this->file = $file;		$this->line = $line;		$this->properties = $properties;	}	public function __get($name) {		return $this->$name;	}	public function __set($name, $value) {		$this->$name = $value;	}	public function touch() {		$this->lastRun = time();	}	private function timeFrequency($frequency, $time = null) {		if ($time === null) $time = time();		$offset = $this->getUpdateFrequency($frequency);		if ($time > $this->lastRun + $offset) return true;		else return false;	}	public function shouldRun($time = null) {		if (isset($this->properties['update-frequency']) && $this->lastRun !== 0) {			$frequency = $this->properties['update-frequency']->read();			$static = ['always' => true, 'never' => false];			if (isset($static[$frequency])) return $static[$frequency];			else return $this->timeFrequency($frequency, $time);		}		else return true;	}	public function getUpdateFrequency($frequency = null) {		if ($frequency === null) {			$frequency = isset($this->properties['update-frequency']) ? $this->properties['update-frequency']->read() : false;		}		if (empty($frequency)) return 0;		else return $this->calcUpdateFrequency($frequency);	}	private function calcUpdateFrequency($frequency) {		$num = (int) $frequency;		$unit = strtoupper(trim(str_replace($num, '', $frequency)));		if ($frequency == 'always') return 0;		else if ($frequency == 'never') return self::D*3650; //Not quite never, in 10 years will cause issues on 32 bit PHP builds re 2038 problem		return $num * constant(self::class . '::' . $unit);	}}