Recurrence\DatetimeProvider

Complexity

Total Complexity

8

Size/Duplication

Total Lines	43
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	3

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	0

1 Method

Rating	Name	Duplication	Size	Complexity
C	provide()	0	36	8

<?php

namespace Recurrence;

use Recurrence\Model\Recurrence;
use Recurrence\Provider\DatetimeProviderFactory;
use Recurrence\Validator\RecurrenceValidator;

/**
 * Class DatetimeProvider
 * @package Recurrence
 */
class DatetimeProvider
{
    /**
     * @param Recurrence $recurrence
     * @return array<\DateTime>
     */
    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;
    }
}