SystemState.hpp

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#pragma once

 
#include <cstdint>
#include <string>
 
namespace lacte {

enum class SystemState : std::uint8_t {
  DOOR_OPEN = 0,
  NORMAL = 1,
  BOARD_DISCONNECTED = 2,
  BOARD_NOT_INSTALLED = 3,
};
 
[[nodiscard]] inline auto to_string(const SystemState state) -> std::string {
  switch (state) {
    case SystemState::DOOR_OPEN:
      return "door_open";
    case SystemState::NORMAL:
      return "normal";
    case SystemState::BOARD_DISCONNECTED:
      return "board_disconnected";
    case SystemState::BOARD_NOT_INSTALLED:
      return "board_not_installed";
  }
  return "unknown";
}

class SystemStateResolver {
 public:
  void set_door_signal_lost(const bool lost) { m_door_signal_lost_ = lost; }
 
  [[nodiscard]] auto door_signal_lost() const -> bool {
    return m_door_signal_lost_;
  }

  [[nodiscard]] static auto resolve(const bool lacte_online,
                                    const bool door_signal_lost) noexcept
      -> SystemState {
    if (lacte_online) {
      return door_signal_lost ? SystemState::DOOR_OPEN : SystemState::NORMAL;
    }
    return door_signal_lost ? SystemState::BOARD_DISCONNECTED
                            : SystemState::BOARD_NOT_INSTALLED;
  }
 
  [[nodiscard]] auto resolve(const bool lacte_online) const noexcept
      -> SystemState {
    return resolve(lacte_online, m_door_signal_lost_);
  }
 
 private:
  bool m_door_signal_lost_{false};
};
 
}  // namespace lacte