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<?php |
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namespace Kir\Services\Cmd\Dispatcher\Common; |
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4
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use DateTimeImmutable; |
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use DateTimeInterface; |
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use Generator; |
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use RuntimeException; |
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use Throwable; |
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10
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class IntervalParser { |
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/** |
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* @param string|int|array $interval |
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* @param DateTimeInterface|null $now |
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* @return DateTimeImmutable |
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*/ |
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public static function getNext($interval, DateTimeInterface $now = null): DateTimeImmutable { |
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if($now === null) { |
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try { |
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$now = new DateTimeImmutable(); |
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} catch (Throwable $e) { |
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throw new RuntimeException($e->getMessage(), $e->getCode(), $e); |
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} |
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} else { |
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$now = DateTimeHelper::createImmutable($now); |
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} |
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$result = null; |
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foreach(self::parse($interval, $now) as $date) { |
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if($result === null) { |
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$result = $date; |
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} elseif($date < $result) { |
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$result = $date; |
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} |
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} |
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return $result; |
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} |
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/** |
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* @param string|array $interval |
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* @param DateTimeImmutable $now |
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* @return Generator|DateTimeImmutable[] |
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*/ |
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private static function parse($interval, DateTimeImmutable $now) { |
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if(is_array($interval)) { |
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foreach($interval as $inner) { |
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yield from self::parse($inner, $now); |
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} |
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} elseif(ctype_digit($interval)) { |
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yield self::parseInt($interval, $now); |
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} else { |
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yield self::parseString($interval, $now); |
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} |
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} |
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/** |
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* @param int $interval |
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* @param DateTimeImmutable $now |
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* @return DateTimeImmutable |
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*/ |
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private static function parseInt(int $interval, DateTimeImmutable $now): DateTimeImmutable { |
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return $now->modify("+{$interval} second"); |
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} |
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/** |
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* @param string $interval |
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* @param DateTimeImmutable $now |
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* @return DateTimeImmutable |
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*/ |
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private static function parseString(string $interval, DateTimeImmutable $now): DateTimeImmutable { |
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if(preg_match('/^(\\d{1,2}|\\*):(\\d{1,2}|\\*)(?::(\\d{1,2}|\\*))?$/', $interval, $matches)) { |
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$matches[] = 0; |
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[$hours, $minutes, $seconds] = array_slice($matches, 1); |
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$today = DateTimeHelper::createImmutable($now)->setTime((int) $hours, (int) $minutes, (int) $seconds); |
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$possibleDates = [ |
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$today, |
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$today->modify('+24 hour') |
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]; |
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return self::nearst($possibleDates, $now); |
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} |
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// Expect input to be a cron-expression |
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return DateTimeHelper::getNextRunDateFromCronExpression($interval, $now); |
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} |
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/** |
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* @param array $possibleDates |
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* @param DateTimeImmutable $now |
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* @return DateTimeImmutable |
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*/ |
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private static function nearst(array $possibleDates, DateTimeImmutable $now) { |
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$current = null; |
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foreach($possibleDates as $possibleDate) { |
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if($now > $possibleDate) { // The current date is in the past |
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continue; |
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} |
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if($current === null || $possibleDate < $current) { |
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$current = $possibleDate; |
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} |
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} |
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if($current !== null) { |
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return $current; |
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} |
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throw new RuntimeException('No alternative lays in the future'); |
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} |
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} |
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rkrx /
php-service-dispatcher
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This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.