1  #pragma once
  2  
  3  #include <unordered_set>
  4  #include <string>
  5  #include <vector>
  6  #include <memory>
  7  #include <windows.h>
  8  #include <mutex>
  9  #include <atomic>
 10  #include <thread>
 11  #include <chrono>
 12  #include <common/SettingsAPI/FileWatcher.h>
 13  #include <common/SettingsAPI/settings_objects.h>
 14  #include <SettingsConstants.h>
 15  
 16  class SettingsObserver;
 17  
 18  enum class ScheduleMode
 19  {
 20      Off,
 21      FixedHours,
 22      SunsetToSunrise,
 23      FollowNightLight,
 24      // Add more in the future
 25  };
 26  
 27  inline std::wstring ToString(ScheduleMode mode)
 28  {
 29      switch (mode)
 30      {
 31      case ScheduleMode::FixedHours:
 32          return L"FixedHours";
 33      case ScheduleMode::SunsetToSunrise:
 34          return L"SunsetToSunrise";
 35      case ScheduleMode::FollowNightLight:
 36          return L"FollowNightLight";
 37      default:
 38          return L"Off";
 39      }
 40  }
 41  
 42  inline ScheduleMode FromString(const std::wstring& str)
 43  {
 44      if (str == L"SunsetToSunrise")
 45          return ScheduleMode::SunsetToSunrise;
 46      if (str == L"FixedHours")
 47          return ScheduleMode::FixedHours;
 48      if (str == L"FollowNightLight")
 49          return ScheduleMode::FollowNightLight;
 50      else
 51          return ScheduleMode::Off;
 52  }
 53  
 54  struct LightSwitchConfig
 55  {
 56      ScheduleMode scheduleMode = ScheduleMode::FixedHours;
 57  
 58      std::wstring latitude = L"0.0";
 59      std::wstring longitude = L"0.0";
 60  
 61      // Stored as minutes since midnight
 62      int lightTime = 8 * 60; // 08:00 default
 63      int darkTime = 20 * 60; // 20:00 default
 64  
 65      int sunrise_offset = 0;
 66      int sunset_offset = 0;
 67  
 68      bool changeSystem = false;
 69      bool changeApps = false;
 70  
 71      bool enableDarkModeProfile = false;
 72      bool enableLightModeProfile = false;
 73      std::wstring darkModeProfile = L"";
 74      std::wstring lightModeProfile = L"";
 75  };
 76  
 77  class LightSwitchSettings
 78  {
 79  public:
 80      static LightSwitchSettings& instance();
 81  
 82      static inline const LightSwitchConfig& settings()
 83      {
 84          return instance().m_settings;
 85      }
 86  
 87      void InitFileWatcher();
 88      static std::wstring GetSettingsFileName();
 89  
 90      void AddObserver(SettingsObserver& observer);
 91      void RemoveObserver(SettingsObserver& observer);
 92  
 93      void LoadSettings();
 94  
 95      HANDLE GetSettingsChangedEvent() const;
 96  
 97  private:
 98      LightSwitchSettings();
 99      ~LightSwitchSettings();
100  
101      LightSwitchConfig m_settings;
102      std::unique_ptr<FileWatcher> m_settingsFileWatcher;
103      std::unordered_set<SettingsObserver*> m_observers;
104  
105      void NotifyObservers(SettingId id) const;
106  
107      HANDLE m_settingsChangedEvent = nullptr;
108      mutable std::mutex m_settingsMutex;
109  
110      // Debounce state
111      std::atomic_bool m_debouncePending{ false };
112      std::mutex m_debounceMutex;
113      std::chrono::steady_clock::time_point m_lastChangeTime{};
114      std::jthread m_debounceThread;
115  };