DateHelper.php

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<?php

declare(strict_types=1);

namespace ILIAS\MetaData\OERExposer\OAIPMH;

trait DateHelper
{
    protected function getCurrentDateTime(): \DateTimeImmutable
    {
        return new \DateTimeImmutable('now', new \DateTimeZone('UTC'));
    }

    protected function getCurrentDate(): \DateTimeImmutable
    {
        return $this->getCurrentDateTime()->setTime(0, 0);
    }

    protected function getFormattedDateTime(\DateTimeImmutable $datetime): string
    {
        return $datetime->format('Y-m-d\TH:i:sp');
    }

    protected function getFormattedDate(\DateTimeImmutable $date): string
    {
        return $date->format('Y-m-d');
    }

    protected function isStringValidAsDate(string $string): bool
    {
        $date = \DateTimeImmutable::createFromFormat('Y-m-d', $string);
        return $date && $date->format('Y-m-d') === $string;
    }

    protected function getDateFromString(string $string): \DateTimeImmutable
    {
        return new \DateTimeImmutable($string, new \DateTimeZone('UTC'));
    }
}