Recurrence\DatetimeProvider::provide()

Complexity

Conditions	8
Paths	6

Size

Total Lines	36
Code Lines	18

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	16
CRAP Score	8

Importance

Changes	1
Bugs	0	Features	0

<?php
    public function provide(Recurrence $recurrence)
    {
        RecurrenceValidator::validate($recurrence);

        $provider = DatetimeProviderFactory::create($recurrence);

        $datetimes = $provider->provide($recurrence);

        if (!$recurrence->hasConstraints()) {
            return $datetimes;
        }

        $filteredDatetimes = [];

        $previousDatetime = null;
        foreach ($datetimes as $key => $datetime) {
            $filteredDatetime = $datetime;

            // Apply each constraint on current datetime
            foreach ($recurrence->getConstraints() as $constraint) {
                $filteredDatetime = $constraint->apply($recurrence, $filteredDatetime);
            }

            if ($recurrence->hasPeriodEndAt() && $datetime > $recurrence->getPeriodEndAt()) {
                break;
            }

            // Avoid duplicate datetime due to constraint updates
            if (empty($filteredDatetimes) || $previousDatetime != $filteredDatetime) {
                $filteredDatetimes[] = $filteredDatetime;
                $previousDatetime    = $filteredDatetime;
            }
        }

        return $filteredDatetimes;
    }
}