Method setParityIndex

app/src/API/Handlers/ModbusHandler.cpp:431–457

* @brief Set RTU parity */

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

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

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

  modbus->setParityIndex(static_cast<quint8>(parityIndex));

  QJsonObject result;
  result[QStringLiteral("parityIndex")] = parityIndex;
  result[QStringLiteral("parityName")]  = parityList.at(parityIndex);
  return CommandResponse::makeSuccess(id, result);
}

/**
 * @brief Set RTU data bits