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Edit File: HoursField.php

<?php
declare(strict_types=1);
namespace Cron;
if (!defined('ABSPATH')) exit;
use DateTimeInterface;
use DateTimeZone;
class HoursField extends AbstractField
{
 protected $rangeStart = 0;
 protected $rangeEnd = 23;
 protected $transitions = [];
 protected $transitionsStart = null;
 protected $transitionsEnd = null;
 public function isSatisfiedBy(DateTimeInterface $date, $value, bool $invert): bool
 {
 $checkValue = (int) $date->format('H');
 $retval = $this->isSatisfied($checkValue, $value);
 if ($retval) {
 return $retval;
 }
 // Are we on the edge of a transition
 $lastTransition = $this->getPastTransition($date);
 if (($lastTransition !== null) && ($lastTransition["ts"] > ((int) $date->format('U') - 3600))) {
 $dtLastOffset = clone $date;
 $this->timezoneSafeModify($dtLastOffset, "-1 hour");
 $lastOffset = $dtLastOffset->getOffset();
 $dtNextOffset = clone $date;
 $this->timezoneSafeModify($dtNextOffset, "+1 hour");
 $nextOffset = $dtNextOffset->getOffset();
 $offsetChange = $nextOffset - $lastOffset;
 if ($offsetChange >= 3600) {
 $checkValue -= 1;
 return $this->isSatisfied($checkValue, $value);
 }
 if ((! $invert) && ($offsetChange <= -3600)) {
 $checkValue += 1;
 return $this->isSatisfied($checkValue, $value);
 }
 }
 return $retval;
 }
 public function getPastTransition(DateTimeInterface $date): ?array
 {
 $currentTimestamp = (int) $date->format('U');
 if (
 ($this->transitions === null)
 || ($this->transitionsStart < ($currentTimestamp + 86400))
 || ($this->transitionsEnd > ($currentTimestamp - 86400))
 ) {
 // We start a day before current time so we can differentiate between the first transition entry
 // and a change that happens now
 $dtLimitStart = clone $date;
 $dtLimitStart = $dtLimitStart->modify("-12 months");
 $dtLimitEnd = clone $date;
 $dtLimitEnd = $dtLimitEnd->modify('+12 months');
 $this->transitions = $date->getTimezone()->getTransitions(
 $dtLimitStart->getTimestamp(),
 $dtLimitEnd->getTimestamp()
 );
 if (empty($this->transitions)) {
 return null;
 }
 $this->transitionsStart = $dtLimitStart->getTimestamp();
 $this->transitionsEnd = $dtLimitEnd->getTimestamp();
 }
 $nextTransition = null;
 foreach ($this->transitions as $transition) {
 if ($transition["ts"] > $currentTimestamp) {
 continue;
 }
 if (($nextTransition !== null) && ($transition["ts"] < $nextTransition["ts"])) {
 continue;
 }
 $nextTransition = $transition;
 }
 return ($nextTransition ?? null);
 }
 public function increment(DateTimeInterface &$date, $invert = false, $parts = null): FieldInterface
 {
 $originalTimestamp = (int) $date->format('U');
 // Change timezone to UTC temporarily. This will
 // allow us to go back or forwards and hour even
 // if DST will be changed between the hours.
 if (null === $parts || '*' === $parts) {
 if ($invert) {
 $date = $date->sub(new \DateInterval('PT1H'));
 } else {
 $date = $date->add(new \DateInterval('PT1H'));
 }
 $date = $this->setTimeHour($date, $invert, $originalTimestamp);
 return $this;
 }
 $parts = false !== strpos($parts, ',') ? explode(',', $parts) : [$parts];
 $hours = [];
 foreach ($parts as $part) {
 $hours = array_merge($hours, $this->getRangeForExpression($part, 23));
 }
 $current_hour = (int) $date->format('H');
 $position = $invert ? \count($hours) - 1 : 0;
 $countHours = \count($hours);
 if ($countHours > 1) {
 for ($i = 0; $i < $countHours - 1; ++$i) {
 if ((!$invert && $current_hour >= $hours[$i] && $current_hour < $hours[$i + 1]) ||
 ($invert && $current_hour > $hours[$i] && $current_hour <= $hours[$i + 1])) {
 $position = $invert ? $i : $i + 1;
 break;
 }
 }
 }
 $target = (int) $hours[$position];
 $originalHour = (int)$date->format('H');
 $originalDay = (int)$date->format('d');
 $previousOffset = $date->getOffset();
 if (! $invert) {
 if ($originalHour >= $target) {
 $distance = 24 - $originalHour;
 $date = $this->timezoneSafeModify($date, "+{$distance} hours");
 $actualDay = (int)$date->format('d');
 $actualHour = (int)$date->format('H');
 if (($actualDay !== ($originalDay + 1)) && ($actualHour !== 0)) {
 $offsetChange = ($previousOffset - $date->getOffset());
 $date = $this->timezoneSafeModify($date, "+{$offsetChange} seconds");
 }
 $originalHour = (int)$date->format('H');
 }
 $distance = $target - $originalHour;
 $date = $this->timezoneSafeModify($date, "+{$distance} hours");
 } else {
 if ($originalHour <= $target) {
 $distance = ($originalHour + 1);
 $date = $this->timezoneSafeModify($date, "-" . $distance . " hours");
 $actualDay = (int)$date->format('d');
 $actualHour = (int)$date->format('H');
 if (($actualDay !== ($originalDay - 1)) && ($actualHour !== 23)) {
 $offsetChange = ($previousOffset - $date->getOffset());
 $date = $this->timezoneSafeModify($date, "+{$offsetChange} seconds");
 }
 $originalHour = (int)$date->format('H');
 }
 $distance = $originalHour - $target;
 $date = $this->timezoneSafeModify($date, "-{$distance} hours");
 }
 $date = $this->setTimeHour($date, $invert, $originalTimestamp);
 $actualHour = (int)$date->format('H');
 if ($invert && ($actualHour === ($target - 1) || (($actualHour === 23) && ($target === 0)))) {
 $date = $this->timezoneSafeModify($date, "+1 hour");
 }
 return $this;
 }
}

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