data = $data; } public function __toString(): string { $result = parent::__toString(); if (null !== $this->data) { $result .= $this->data; } return $result; } public static function createObjectForValue(int $additionalInformation, ?string $data): self { return new self($additionalInformation, $data); } public static function create(int $value): self { return self::createFromString((string) $value); } public static function createFromHex(string $value): self { $integer = BigInteger::fromBase($value, 16); return self::createBigInteger($integer); } public static function createFromString(string $value): self { $integer = BigInteger::of($value); return self::createBigInteger($integer); } public function getMajorType(): int { return self::MAJOR_TYPE; } public function getAdditionalInformation(): int { return $this->additionalInformation; } public function getValue(): string { return $this->getNormalizedData(); } public function getNormalizedData(bool $ignoreTags = false): string { if (null === $this->data) { return (string) $this->additionalInformation; } $integer = BigInteger::fromBase(bin2hex($this->data), 16); return $integer->toBase(10); } private static function createBigInteger(BigInteger $integer): self { if ($integer->isLessThan(BigInteger::zero())) { throw new InvalidArgumentException('The value must be a positive integer.'); } switch (true) { case $integer->isLessThan(BigInteger::of(24)): $ai = $integer->toInt(); $data = null; break; case $integer->isLessThan(BigInteger::fromBase('FF', 16)): $ai = 24; $data = self::hex2bin(str_pad($integer->toBase(16), 2, '0', STR_PAD_LEFT)); break; case $integer->isLessThan(BigInteger::fromBase('FFFF', 16)): $ai = 25; $data = self::hex2bin(str_pad($integer->toBase(16), 4, '0', STR_PAD_LEFT)); break; case $integer->isLessThan(BigInteger::fromBase('FFFFFFFF', 16)): $ai = 26; $data = self::hex2bin(str_pad($integer->toBase(16), 8, '0', STR_PAD_LEFT)); break; default: throw new InvalidArgumentException('Out of range. Please use PositiveBigIntegerTag tag with ByteStringObject object instead.'); } return new self($ai, $data); } private static function hex2bin(string $data): string { $result = hex2bin($data); if (false === $result) { throw new InvalidArgumentException('Unable to convert the data'); } return $result; } }