SaveTool: add skeleton for update checking.

src/SaveTool/SaveTool.cpp

@@ -30,6 +30,8 @@
 #include <Magnum/ImGuiIntegration/Integration.h>
 #include <Magnum/ImGuiIntegration/Context.hpp>
 
+#include <cpr/cpr.h>
+
 #include <windef.h>
 #include <winuser.h>
 #include <processthreadsapi.h>
@@ -81,12 +83,15 @@ SaveTool::SaveTool(const Arguments& arguments):
 
     initialiseGui();
 
-    if((_initEventId = SDL_RegisterEvents(1)) == UnsignedInt(-1)) {
+    if((_initEventId = SDL_RegisterEvents(2)) == UnsignedInt(-1)) {
         SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error",
                                  "SDL_RegisterEvents failed in SaveTool::SaveTool(). Exiting...", window());
         exit(EXIT_FAILURE);
+        return;
     }
 
+    _updateEventId = _initEventId + 1;
+
     _backupsDir = Utility::Directory::join(Utility::Directory::path(Utility::Directory::executableLocation()), "backups");
     _stagingDir = Utility::Directory::join(Utility::Directory::path(Utility::Directory::executableLocation()), "staging");
 
@@ -101,6 +106,7 @@ SaveTool::SaveTool(const Arguments& arguments):
     if(!findGameDataDirectory()) {
         SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error initialising the app", _lastError.c_str(), window());
         exit(EXIT_FAILURE);
+        return;
     }
 
     _configDir = Utility::Directory::join(_gameDataDir, "Saved/Config/WindowsNoEditor");
@@ -110,6 +116,7 @@ SaveTool::SaveTool(const Arguments& arguments):
     if(SDL_InitSubSystem(SDL_INIT_TIMER) != 0) {
         SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error initialising the app", SDL_GetError(), window());
         exit(EXIT_FAILURE);
+        return;
     }
 
     checkGameState();
@@ -122,6 +129,7 @@ SaveTool::SaveTool(const Arguments& arguments):
     if(_gameCheckTimerId == 0) {
         SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error", SDL_GetError(), window());
         exit(EXIT_FAILURE);
+        return;
     }
 }
 
@@ -247,6 +255,9 @@ void SaveTool::anyEvent(SDL_Event& event) {
     if(event.type == _initEventId) {
         initEvent(event);
     }
+    else if(event.type == _updateEventId) {
+        updateCheckEvent(event);
+    }
 }
 
 void SaveTool::initEvent(SDL_Event& event) {
@@ -266,6 +277,12 @@ void SaveTool::initEvent(SDL_Event& event) {
     }
 }
 
+void SaveTool::updateCheckEvent(SDL_Event& event) {
+    _thread.join();
+
+    // TODO: implement
+}
+
 void SaveTool::initialiseGui() {
     ImGui::CreateContext();
 
@@ -549,3 +566,12 @@ void SaveTool::checkGameState() {
         _gameState = GameState::Unknown;
     }
 }
+
+void SaveTool::checkForUpdates() {
+    // TODO: implement
+
+    SDL_Event event;
+    SDL_zero(event);
+    event.type = _updateEventId;
+    SDL_PushEvent(&event);
+}

src/SaveTool/SaveTool.h

@@ -70,6 +70,7 @@ class SaveTool: public Platform::Sdl2Application, public efsw::FileWatchListener
             ProfileManagerFailure
         };
         void initEvent(SDL_Event& event);
+        void updateCheckEvent(SDL_Event& event);
 
         // Initialisation methods
         void initialiseGui();
@@ -136,6 +137,8 @@ class SaveTool: public Platform::Sdl2Application, public efsw::FileWatchListener
 
         void checkGameState();
 
+        void checkForUpdates();
+
         Utility::Resource _rs{"assets"};
 
         // GUI-related members
@@ -155,8 +158,10 @@ class SaveTool: public Platform::Sdl2Application, public efsw::FileWatchListener
         bool _metricsWindow{false};
 #endif
 
-        std::thread _thread;
+        std::thread _thread; // used for threaded operations such as profile manager init or update checking.
+
         UnsignedInt _initEventId;
+        UnsignedInt _updateEventId;
 
         std::string _lastError;
 

src/SaveTool/SaveTool_drawMainMenu.cpp

@@ -54,6 +54,12 @@ void SaveTool::drawMainMenu() {
 
             ImGui::Separator();
 
+            if(ImGui::MenuItem(ICON_FA_SYNC_ALT " Check for updates", nullptr, false, false)) {
+                // TODO: implement
+            }
+
+            ImGui::Separator();
+
             if(ImGui::MenuItem(ICON_FA_SIGN_OUT_ALT " Quit##QuitMenuItem")) {
                 exit(EXIT_SUCCESS);
             }