msg.hpp

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// (C) Copyright 2025, SECO Mind Srl
//
// SPDX-License-Identifier: Apache-2.0
 
#ifndef ASTARTE_DEVICE_SDK_MSG_H
#define ASTARTE_DEVICE_SDK_MSG_H

 
#include <optional>
#include <string>
#include <string_view>
#include <utility>
#include <variant>
 
#include "astarte_device_sdk/individual.hpp"
#include "astarte_device_sdk/object.hpp"
#include "astarte_device_sdk/property.hpp"
 
namespace AstarteDeviceSdk {

class AstarteMessage {
 public:
  template <typename T>
  AstarteMessage(std::string_view interface, std::string path, T data)
      : interface_(interface), path_(std::move(path)), data_(data) {}

  [[nodiscard]] auto get_interface() const -> const std::string&;
  [[nodiscard]] auto get_path() const -> const std::string&;
  [[nodiscard]] auto is_datastream() const -> bool;
  [[nodiscard]] auto is_individual() const -> bool;
  template <typename T>
  [[nodiscard]] auto into() const -> const T& {
    return std::get<T>(data_);
  }

  template <typename T>
  [[nodiscard]] auto try_into() const -> std::optional<T> {
    if (std::holds_alternative<T>(data_)) {
      return std::get<T>(data_);
    }
 
    return std::nullopt;
  }

  [[nodiscard]] auto get_raw_data() const
      -> const std::variant<AstarteDatastreamIndividual, AstarteDatastreamObject,
                            AstartePropertyIndividual>&;
  [[nodiscard]] auto operator==(const AstarteMessage& other) const -> bool;
  [[nodiscard]] auto operator!=(const AstarteMessage& other) const -> bool;
 
 private:
  std::string interface_;
  std::string path_;
  std::variant<AstarteDatastreamIndividual, AstarteDatastreamObject, AstartePropertyIndividual>
      data_;
};
 
}  // namespace AstarteDeviceSdk
 
#endif  // ASTARTE_DEVICE_SDK_MSG_H