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<?php |
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namespace Recurrence; |
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use Recurrence\Constraint\DatetimeConstraint\DatetimeConstraintInterface; |
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use Recurrence\Model\Recurrence; |
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use Recurrence\Provider\DatetimeProviderFactory; |
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use Recurrence\Validator\RecurrenceValidator; |
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class DatetimeProvider |
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{ |
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/** |
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* @return array<\DateTime> |
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*/ |
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public function provide(Recurrence $recurrence): array |
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{ |
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RecurrenceValidator::validate($recurrence); |
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$provider = DatetimeProviderFactory::create($recurrence); |
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$datetimes = $provider->provide($recurrence); |
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if (!$recurrence->hasDatetimeConstraint()) { |
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return $datetimes; |
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} |
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$filteredDatetimes = []; |
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$previousDatetime = null; |
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foreach ($datetimes as $key => $datetime) { |
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$filteredDatetime = $this->applyConstraints($recurrence, $datetime); |
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// Check that datetime do not pass recurrence end period |
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if ($recurrence->hasPeriodEndAt() && $datetime > $recurrence->getPeriodEndAt()) { |
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break; |
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} |
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// Avoid duplicate datetime due to constraint updates |
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if (empty($filteredDatetimes) || $previousDatetime != $filteredDatetime) { |
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$filteredDatetimes[] = $filteredDatetime; |
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$previousDatetime = $filteredDatetime; |
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} |
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} |
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return $filteredDatetimes; |
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} |
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private function applyConstraints(Recurrence $recurrence, \DateTime $datetime): ?\DateTime |
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{ |
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$filteredDatetime = $datetime; |
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// Apply each constraint on current datetime |
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foreach ($recurrence->getConstraints() as $constraint) { |
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if ($constraint instanceof DatetimeConstraintInterface) { |
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$filteredDatetime = $constraint->apply($recurrence, $datetime); |
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} |
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} |
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return $filteredDatetime; |
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} |
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} |
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Samffy /
recurrence
