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Edit File: DayOfWeekField.php

<?php
declare(strict_types=1);
namespace Cron;
if (!defined('ABSPATH')) exit;
use DateTimeInterface;
use InvalidArgumentException;
class DayOfWeekField extends AbstractField
{
 protected $rangeStart = 0;
 protected $rangeEnd = 7;
 protected $nthRange;
 protected $literals = [1 => 'MON', 2 => 'TUE', 3 => 'WED', 4 => 'THU', 5 => 'FRI', 6 => 'SAT', 7 => 'SUN'];
 public function __construct()
 {
 $this->nthRange = range(1, 5);
 parent::__construct();
 }
 public function isSatisfiedBy(DateTimeInterface $date, $value, bool $invert): bool
 {
 if ('?' === $value) {
 return true;
 }
 // Convert text day of the week values to integers
 $value = $this->convertLiterals($value);
 $currentYear = (int) $date->format('Y');
 $currentMonth = (int) $date->format('m');
 $lastDayOfMonth = (int) $date->format('t');
 // Find out if this is the last specific weekday of the month
 if ($lPosition = strpos($value, 'L')) {
 $weekday = $this->convertLiterals(substr($value, 0, $lPosition));
 $weekday %= 7;
 $daysInMonth = (int) $date->format('t');
 $remainingDaysInMonth = $daysInMonth - (int) $date->format('d');
 return (($weekday === (int) $date->format('w')) && ($remainingDaysInMonth < 7));
 }
 // Handle # hash tokens
 if (strpos($value, '#')) {
 [$weekday, $nth] = explode('#', $value);
 if (!is_numeric($nth)) {
 throw new InvalidArgumentException("Hashed weekdays must be numeric, {$nth} given");
 } else {
 $nth = (int) $nth;
 }
 // 0 and 7 are both Sunday, however 7 matches date('N') format ISO-8601
 if ('0' === $weekday) {
 $weekday = 7;
 }
 $weekday = (int) $this->convertLiterals((string) $weekday);
 // Validate the hash fields
 if ($weekday < 0 || $weekday > 7) {
 throw new InvalidArgumentException("Weekday must be a value between 0 and 7. {$weekday} given");
 }
 if (!\in_array($nth, $this->nthRange, true)) {
 throw new InvalidArgumentException("There are never more than 5 or less than 1 of a given weekday in a month, {$nth} given");
 }
 // The current weekday must match the targeted weekday to proceed
 if ((int) $date->format('N') !== $weekday) {
 return false;
 }
 $tdate = clone $date;
 $tdate = $tdate->setDate($currentYear, $currentMonth, 1);
 $dayCount = 0;
 $currentDay = 1;
 while ($currentDay < $lastDayOfMonth + 1) {
 if ((int) $tdate->format('N') === $weekday) {
 if (++$dayCount >= $nth) {
 break;
 }
 }
 $tdate = $tdate->setDate($currentYear, $currentMonth, ++$currentDay);
 }
 return (int) $date->format('j') === $currentDay;
 }
 // Handle day of the week values
 if (false !== strpos($value, '-')) {
 $parts = explode('-', $value);
 if ('7' === $parts[0]) {
 $parts[0] = 0;
 } elseif ('0' === $parts[1]) {
 $parts[1] = 7;
 }
 $value = implode('-', $parts);
 }
 // Test to see which Sunday to use -- 0 == 7 == Sunday
 $format = \in_array(7, array_map(function ($value) {
 return (int) $value;
 }, str_split($value)), true) ? 'N' : 'w';
 $fieldValue = (int) $date->format($format);
 return $this->isSatisfied($fieldValue, $value);
 }
 public function increment(DateTimeInterface &$date, $invert = false, $parts = null): FieldInterface
 {
 if (! $invert) {
 $date = $date->add(new \DateInterval('P1D'));
 $date = $date->setTime(0, 0);
 } else {
 $date = $date->sub(new \DateInterval('P1D'));
 $date = $date->setTime(23, 59);
 }
 return $this;
 }
 public function validate(string $value): bool
 {
 $basicChecks = parent::validate($value);
 if (!$basicChecks) {
 if ('?' === $value) {
 return true;
 }
 // Handle the # value
 if (false !== strpos($value, '#')) {
 $chunks = explode('#', $value);
 $chunks[0] = $this->convertLiterals($chunks[0]);
 if (parent::validate($chunks[0]) && is_numeric($chunks[1]) && \in_array((int) $chunks[1], $this->nthRange, true)) {
 return true;
 }
 }
 if (preg_match('/^(.*)L$/', $value, $matches)) {
 return $this->validate($matches[1]);
 }
 return false;
 }
 return $basicChecks;
 }
}

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