deserializePayload method

@override int deserializePayload(LowLevelControlBuilder builder, ByteData byteData, Endian endianness, int offset,)

Call to deserialize only the payload, no header. The Builder is to allow passing the message to build into. returns a int with a serialized size

Implementation

@override
int deserializePayload(imc.LowLevelControlBuilder builder, ByteData byteData,
    Endian endianness, int offset) {
  var byteOffset = offset;

  // field control
  var controlSId = byteData.getUint16(byteOffset, endianness);
  byteOffset += 2;
  if (controlSId == imc.ImcId.nullId) {
    builder.control = null;
  } else {
    var pMsgBuilder = imc.messagesBuilders[
            imc.idsToMessages[controlSId] ?? imc.ImcId.nullId.toString()]
        ?.call()
        .newInstance(builder);
    var pMsgSerializer = imc.messagesSerializers[
            imc.idsToMessages[controlSId] ?? imc.ImcId.nullId.toString()]
        ?.call();
    if (pMsgBuilder != null && pMsgSerializer != null) {
      var mPSize = pMsgSerializer.deserializePayload(
          pMsgBuilder, byteData, endianness, byteOffset);
      byteOffset += mPSize;
      builder.control = pMsgBuilder.build() as imc.ControlCommand?;
    }
  }
  // field duration
  builder.duration = byteData.getUint16(byteOffset, endianness);
  byteOffset += 2;
  // field custom
  var customSSize = byteData.getUint16(byteOffset, endianness);
  byteOffset += 2;
  var customDData = List.filled(customSSize, 0);
  for (var i = 0; i < customSSize; i++) {
    customDData[i] = byteData.getUint8(byteOffset++);
  }
  var customDecoded = utf8.decode(customDData);
  builder.custom = customDecoded;

  return byteOffset - offset;
}