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<?php |
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declare(strict_types=1); |
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namespace Adlogix\EventScheduler; |
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use Adlogix\EventScheduler\DateRange\DateRange; |
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use Adlogix\EventScheduler\DateRange\DateRangeIterator; |
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use Adlogix\EventScheduler\DateRange\DateRangeReverseIterator; |
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use Adlogix\EventScheduler\TemporalExpression\TemporalExpressionInterface; |
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use DateInterval; |
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use DateTimeImmutable; |
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use DateTimeInterface; |
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use Traversable; |
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/** |
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* @author Toni Van de Voorde <[email protected]> |
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*/ |
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final class Scheduler implements SchedulerInterface |
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{ |
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/** |
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* @var SchedulableEventCollection |
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*/ |
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private $scheduledEvents; |
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public function __construct() |
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{ |
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$this->scheduledEvents = new SchedulableEventCollection(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function schedule( |
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EventInterface $event, |
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TemporalExpressionInterface $temporalExpression |
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): SchedulableEvent { |
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$schedulableEvent = new SchedulableEvent($event, $temporalExpression); |
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$this->scheduledEvents->add($schedulableEvent); |
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return $schedulableEvent; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function cancel(SchedulableEvent $schedulableEvent): void |
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{ |
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$this->scheduledEvents->remove($schedulableEvent); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function isScheduled(EventInterface $event): bool |
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{ |
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$scheduledEvents = $this->scheduledEvents->filterByEvent($event); |
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return count($scheduledEvents) > 0; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function isOccurring(EventInterface $event, DateTimeInterface $date): bool |
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{ |
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$scheduledEvents = $this->scheduledEvents->filterByEvent($event); |
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foreach ($scheduledEvents as $scheduledEvent) { |
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if ($scheduledEvent->isOccurring($event, $date)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function eventsForDate(DateTimeInterface $date): Traversable |
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{ |
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foreach ($this->scheduledEvents as $scheduledEvent) { |
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$event = $scheduledEvent->event(); |
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if ($this->isOccurring($event, $date)) { |
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yield $event; |
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} |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function dates(EventInterface $event, DateRange $range): Traversable |
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{ |
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$iterator = $this->createDateRangeIterator($range); |
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while ($iterator->valid()) { |
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if ($this->isOccurring($event, $iterator->current())) { |
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$foundDates = $iterator->current(); |
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yield $foundDates; |
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} |
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$iterator->next(); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function nextOccurrence( |
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EventInterface $event, |
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DateRange $range |
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): DateTimeImmutable { |
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return $this->findNextOccurrenceInIterator( |
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$event, |
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$this->createDateRangeIterator($range) |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function previousOccurrence( |
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EventInterface $event, |
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DateRange $range |
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): DateTimeImmutable { |
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return $this->findNextOccurrenceInIterator( |
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$event, |
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$this->createDateRangeReverseIterator($range) |
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); |
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} |
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/** |
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* @param DateRange $range |
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* @return DateRangeIterator |
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* @throws \Exception |
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*/ |
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4 |
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private function createDateRangeIterator( |
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DateRange $range |
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): DateRangeIterator { |
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return new DateRangeIterator($range, new DateInterval('P1D')); |
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} |
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/** |
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* @param DateRange $range |
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* @return DateRangeReverseIterator |
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* @throws \Exception |
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*/ |
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private function createDateRangeReverseIterator( |
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DateRange $range |
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): DateRangeReverseIterator { |
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return new DateRangeReverseIterator($range, new DateInterval('P1D')); |
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} |
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/** |
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* @param EventInterface $event |
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* @param Traversable $dates |
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* @return DateTimeImmutable |
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*/ |
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private function findNextOccurrenceInIterator(EventInterface $event, Traversable $dates): DateTimeImmutable |
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{ |
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foreach ($dates as $date) { |
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if ($this->isOccurring($event, $date)) { |
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return $date; |
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} |
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} |
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throw Exception\NotFoundEventOccurrenceException::create(); |
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} |
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} |
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adlogix /
php-event-schedular
