class UuidV2

final class UuidV2 extends Uuid implements UuidInterface {
    use TimeTrait;
    
    /**
     * Creates a version 2 (DCE Security) UUID
     *
     * @param Rfc4122FieldsInterface $fields The fields from which to construct a UUID
     * @param NumberConverterInterface $numberConverter The number converter to use
     *     for converting hex values to/from integers
     * @param CodecInterface $codec The codec to use when encoding or decoding
     *     UUID strings
     * @param TimeConverterInterface $timeConverter The time converter to use
     *     for converting timestamps extracted from a UUID to unix timestamps
     */
    public function __construct(Rfc4122FieldsInterface $fields, NumberConverterInterface $numberConverter, CodecInterface $codec, TimeConverterInterface $timeConverter) {
        if ($fields->getVersion() !== Uuid::UUID_TYPE_DCE_SECURITY) {
            throw new InvalidArgumentException('Fields used to create a UuidV2 must represent a ' . 'version 2 (DCE Security) UUID');
        }
        parent::__construct($fields, $numberConverter, $codec, $timeConverter);
    }
    
    /**
     * Returns the local domain used to create this version 2 UUID
     */
    public function getLocalDomain() : int {
        
        /** @var Rfc4122FieldsInterface $fields */
        $fields = $this->getFields();
        return (int) hexdec($fields->getClockSeqLow()
            ->toString());
    }
    
    /**
     * Returns the string name of the local domain
     */
    public function getLocalDomainName() : string {
        return Uuid::DCE_DOMAIN_NAMES[$this->getLocalDomain()];
    }
    
    /**
     * Returns the local identifier for the domain used to create this version 2 UUID
     */
    public function getLocalIdentifier() : IntegerObject {
        
        /** @var Rfc4122FieldsInterface $fields */
        $fields = $this->getFields();
        return new IntegerObject($this->numberConverter
            ->fromHex($fields->getTimeLow()
            ->toString()));
    }

}