decode method

@override void decode(Uint8List data, int protocolVersion, MessageEncoding encoding)

Decode message from bytes

Implementation

@override
void decode(Uint8List data, int protocolVersion, MessageEncoding encoding) {
  if (data.isEmpty) {
    throw WireException('Inv message cannot be empty');
  }

  final buffer = ByteData.sublistView(data);
  int offset = 0;

  // Read count of inventory vectors
  final count = VarInt.read(buffer, offset);
  offset += VarInt.size(count);

  // Validate count
  if (count > 50000) {
    throw WireException('Too many inventory vectors: $count (max 50000)');
  }

  // Check remaining data length
  final expectedSize = count * 36; // Each InvVect is 36 bytes
  if (data.length < offset + expectedSize) {
    throw WireException(
      'Insufficient data for inventory vectors: '
      'need ${offset + expectedSize}, got ${data.length}',
    );
  }

  // Read inventory vectors
  invList.clear();
  for (int i = 0; i < count; i++) {
    final inv = InvVect.deserialize(data, offset);
    invList.add(inv);
    offset += 36;
  }
}