decodeAddr method

@override List<int> decodeAddr(String addr, { List<int>? netVersion, String? hrp, })

Overrides the base class method to decode a P2PKH (Pay-to-Public-Key-Hash) address using bch Bech32 encoding.

Implementation

@override
List<int> decodeAddr(String addr, {List<int>? netVersion, String? hrp}) {
  hrp = AddrKeyValidator.getAddrArg<String>(hrp, "hrp");
  netVersion = AddrKeyValidator.getAddrArg<List<int>>(
    netVersion,
    "netVersion",
  );

  /// Decode the Bech32 address and retrieve network version and decoded bytes.
  final result = BchBech32Decoder.decode(hrp, addr);
  final List<int> netVerBytesGot = result.$1;
  final List<int> addrDecBytes = result.$2;

  /// Validate that the decoded network version matches the expected network version.
  if (!BytesUtils.bytesEqual(netVersion, netVerBytesGot)) {
    throw AddressConverterException.addressKeyValidationFailed(
      reason: "Invalid address checksum.",
    );
  }

  /// Validate the length of the decoded address.
  AddrDecUtils.validateBytesLength(
    addrDecBytes,
    QuickCrypto.hash160DigestSize,
  );
  return addrDecBytes;
}