Method setProtocolIndex

app/src/API/Handlers/ModbusHandler.cpp:240–266

* @brief Set Modbus protocol (RTU or TCP) */

 * @brief Set Modbus protocol (RTU or TCP)
 */
API::CommandResponse API::Handlers::ModbusHandler::setProtocolIndex(const QString& id,
                                                                    const QJsonObject& params)
{
  if (!params.contains(QStringLiteral("protocolIndex"))) {
    return CommandResponse::makeError(
      id, ErrorCode::MissingParam, QStringLiteral("Missing required parameter: protocolIndex"));
  }

  const int protocolIndex  = params.value(QStringLiteral("protocolIndex")).toInt();
  auto* modbus             = IO::ConnectionManager::instance().modbus();
  const auto& protocolList = modbus->protocolList();

  if (protocolIndex < 0 || protocolIndex >= protocolList.count()) {
    return CommandResponse::makeError(id,
                                      ErrorCode::InvalidParam,
                                      QStringLiteral("Invalid protocolIndex: %1. Valid range: 0-%2")
                                        .arg(protocolIndex)
                                        .arg(protocolList.count() - 1));
  }

  modbus->setProtocolIndex(static_cast<quint8>(protocolIndex));

  QJsonObject result;
  result[QStringLiteral("protocolIndex")] = protocolIndex;
  result[QStringLiteral("protocolName")]  = protocolList.at(protocolIndex);
  return CommandResponse::makeSuccess(id, result);
}

/**
 * @brief Set Modbus slave address