encodeKey method

@override String encodeKey(List<int> pubKey, { XlmAddrTypes addrType = XlmAddrTypes.pubKey, BigInt? muxedId, })

Encode a Stellar (XLM) public key as a Stellar address.

Implementation

@override
String encodeKey(
  List<int> pubKey, {
  XlmAddrTypes addrType = XlmAddrTypes.pubKey,
  BigInt? muxedId,
}) {
  if (pubKey.length ==
      Ed25519KeysConst.pubKeyByteLen + Ed25519KeysConst.pubKeyPrefix.length) {
    pubKey = pubKey.sublist(1);
  }
  AddrDecUtils.validateBytesLength(pubKey, Ed25519KeysConst.pubKeyByteLen);
  if (addrType == XlmAddrTypes.pubKey) {
    AddrKeyValidator.validateAndGetEd25519Key(pubKey);
  } else if (addrType == XlmAddrTypes.privKey) {
    Ed25519PrivateKey.fromBytes(pubKey);
  }

  if (addrType == XlmAddrTypes.muxed) {
    if (muxedId == null ||
        muxedId > BinaryOps.maxU64 ||
        muxedId < BigInt.zero) {
      throw AddressConverterException.missingOrInvalidAddressArguments(
        reason: "muxedId is required for a muxed address.",
      );
    }
    final idBytes = BigintUtils.toBytes(
      muxedId,
      length: XlmAddrConst.muxedIdLength,
    );
    pubKey = [...pubKey, ...idBytes];
  }

  final List<int> payloadBytes = [addrType.value, ...pubKey];

  final List<int> checksumBytes = _XlmAddrUtils.computeChecksum(payloadBytes);
  return Base32Encoder.encodeNoPaddingBytes([
    ...payloadBytes,
    ...checksumBytes,
  ]);
}