home/alospiesjs/www/apis/youtube/vendor/ramsey/uuid/src/Converter/Time/GenericTimeConverter.php000060400000007342151164266110027124 0ustar00 * @license http://opensource.org/licenses/MIT MIT */ declare(strict_types=1); namespace Ramsey\Uuid\Converter\Time; use Ramsey\Uuid\Converter\TimeConverterInterface; use Ramsey\Uuid\Math\CalculatorInterface; use Ramsey\Uuid\Math\RoundingMode; use Ramsey\Uuid\Type\Hexadecimal; use Ramsey\Uuid\Type\Integer as IntegerObject; use Ramsey\Uuid\Type\Time; use function explode; use function str_pad; use const STR_PAD_LEFT; /** * GenericTimeConverter uses the provided calculator to calculate and convert * time values * * @psalm-immutable */ class GenericTimeConverter implements TimeConverterInterface { /** * The number of 100-nanosecond intervals from the Gregorian calendar epoch * to the Unix epoch. */ private const GREGORIAN_TO_UNIX_INTERVALS = '122192928000000000'; /** * The number of 100-nanosecond intervals in one second. */ private const SECOND_INTERVALS = '10000000'; /** * The number of 100-nanosecond intervals in one microsecond. */ private const MICROSECOND_INTERVALS = '10'; /** * @var CalculatorInterface */ private $calculator; public function __construct(CalculatorInterface $calculator) { $this->calculator = $calculator; } public function calculateTime(string $seconds, string $microseconds): Hexadecimal { $timestamp = new Time($seconds, $microseconds); // Convert the seconds into a count of 100-nanosecond intervals. $sec = $this->calculator->multiply( $timestamp->getSeconds(), new IntegerObject(self::SECOND_INTERVALS) ); // Convert the microseconds into a count of 100-nanosecond intervals. $usec = $this->calculator->multiply( $timestamp->getMicroseconds(), new IntegerObject(self::MICROSECOND_INTERVALS) ); // Combine the seconds and microseconds intervals and add the count of // 100-nanosecond intervals from the Gregorian calendar epoch to the // Unix epoch. This gives us the correct count of 100-nanosecond // intervals since the Gregorian calendar epoch for the given seconds // and microseconds. /** @var IntegerObject $uuidTime */ $uuidTime = $this->calculator->add( $sec, $usec, new IntegerObject(self::GREGORIAN_TO_UNIX_INTERVALS) ); $uuidTimeHex = str_pad( $this->calculator->toHexadecimal($uuidTime)->toString(), 16, '0', STR_PAD_LEFT ); return new Hexadecimal($uuidTimeHex); } public function convertTime(Hexadecimal $uuidTimestamp): Time { // From the total, subtract the number of 100-nanosecond intervals from // the Gregorian calendar epoch to the Unix epoch. This gives us the // number of 100-nanosecond intervals from the Unix epoch, which also // includes the microtime. $epochNanoseconds = $this->calculator->subtract( $this->calculator->toInteger($uuidTimestamp), new IntegerObject(self::GREGORIAN_TO_UNIX_INTERVALS) ); // Convert the 100-nanosecond intervals into seconds and microseconds. $unixTimestamp = $this->calculator->divide( RoundingMode::HALF_UP, 6, $epochNanoseconds, new IntegerObject(self::SECOND_INTERVALS) ); $split = explode('.', (string) $unixTimestamp, 2); return new Time($split[0], $split[1] ?? 0); } }