Sop\X509\Feature\DateTimeHelper

Complexity

Total Complexity

8

Size/Duplication

Total Lines	73
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	_createTimeZone()	0	6	2
A	_getLastDateTimeImmutableErrorsStr()	0	4	1
A	_roundDownFractionalSeconds()	0	5	1
A	_createDateTime()	0	16	4

<?php

declare(strict_types = 1);

namespace Sop\X509\Feature;

/**
 * Helper trait for classes employing date and time handling.
 */
trait DateTimeHelper
{
    /**
     * Create DateTime object from time string and timezone.
     *
     * @param null|string $time Time string, default to 'now'
     * @param null|string $tz   Timezone, default if omitted
     *
     * @throws \RuntimeException
     *
     * @return \DateTimeImmutable
     */
    private static function _createDateTime(
        ?string $time = null, ?string $tz = null): \DateTimeImmutable
    {
        if (!isset($time)) {
            $time = 'now';
        }
        if (!isset($tz)) {
            $tz = date_default_timezone_get();
        }
        try {
            $dt = new \DateTimeImmutable($time, self::_createTimeZone($tz));
            return self::_roundDownFractionalSeconds($dt);
        } catch (\Exception $e) {
            throw new \RuntimeException(
                'Failed to create DateTime: ' .
                     self::_getLastDateTimeImmutableErrorsStr(), 0, $e);
        }
    }

    /**
     * Rounds a \DateTimeImmutable value such that fractional
     * seconds are removed.
     *
     * @param \DateTimeImmutable $dt
     *
     * @return \DateTimeImmutable
     */
    private static function _roundDownFractionalSeconds(
        \DateTimeImmutable $dt): \DateTimeImmutable
    {
        return \DateTimeImmutable::createFromFormat('Y-m-d H:i:s',
            $dt->format('Y-m-d H:i:s'), $dt->getTimezone());
    }

    /**
     * Create DateTimeZone object from string.
     *
     * @param string $tz
     *
     * @throws \UnexpectedValueException
     *
     * @return \DateTimeZone
     */
    private static function _createTimeZone(string $tz): \DateTimeZone
    {
        try {
            return new \DateTimeZone($tz);
        } catch (\Exception $e) {
            throw new \UnexpectedValueException('Invalid timezone.', 0, $e);
        }
    }

    /**
     * Get last error caused by DateTimeImmutable.
     *
     * @return string
     */
    private static function _getLastDateTimeImmutableErrorsStr(): string
    {
        $errors = \DateTimeImmutable::getLastErrors()['errors'];
        return implode(', ', $errors);
    }
}