[FancyZones] Split zones-settings: layout hotkeys (#15514)

src/modules/fancyzones/FancyZonesLib/FancyZonesData/LayoutHotkeys.h

@@ -0,0 +1,50 @@
+#pragma once
+
+#include <guiddef.h>
+#include <map>
+#include <memory>
+#include <optional>
+
+#include <FancyZonesLib/ModuleConstants.h>
+
+#include <common/SettingsAPI/FileWatcher.h>
+#include <common/SettingsAPI/settings_helpers.h>
+
+namespace NonLocalizable
+{
+    namespace LayoutHotkeysIds
+    {
+        const static wchar_t* LayoutHotkeysArrayID = L"layout-hotkeys";
+        const static wchar_t* LayoutUuidID = L"layout-id";
+        const static wchar_t* KeyID = L"key";
+    }
+}
+
+class LayoutHotkeys
+{
+public:
+    using THotkeyMap = std::map<int, GUID>;
+
+    static LayoutHotkeys& instance();
+
+    inline static std::wstring LayoutHotkeysFileName()
+    {
+        std::wstring saveFolderPath = PTSettingsHelper::get_module_save_folder_location(NonLocalizable::ModuleKey);
+#if defined(UNIT_TESTS)
+        return saveFolderPath + L"\\test-layout-hotkeys.json";
+#endif
+        return saveFolderPath + L"\\layout-hotkeys.json";
+    }
+
+    void LoadData(); 
+    
+    std::optional<GUID> GetLayoutId(int key) const noexcept;
+    size_t GetHotkeysCount() const noexcept;
+
+private:
+    LayoutHotkeys();
+    ~LayoutHotkeys() = default;
+
+    THotkeyMap m_hotkeyMap;
+    std::unique_ptr<FileWatcher> m_fileWatcher;
+};