feat(debug): add a debug console

Redcraft.FocusIME/Source/Private/Main.cpp

@@ -9,8 +9,6 @@
 #include <chrono>
 #include <string>
 #include <ctime>
-#include <mutex>
-#include <atomic>
 
 #pragma comment(lib, "psapi.lib")
 
@@ -19,10 +17,9 @@
 // ReSharper disable CppDeprecatedEntity
 // ReSharper disable CppClangTidyCertErr33C
 
-std::mutex    GLogMutex;
 std::ofstream GLogFile;
 
-std::atomic<bool> GShouldExit = false;
+bool GShouldExit = false;
 
 void PrintLog(const std::string& Text);
 
@@ -106,6 +103,36 @@ int WINAPI WinMain(HINSTANCE Instance, HINSTANCE, LPSTR, int)
 		return 1;
 	}
 
+#	if BUILD_DEBUG || BUILD_DEVELOPMENT
+	{
+		if (!AllocConsole())
+		{
+			MessageBox(nullptr, "Failed to allocate console.", "FocusIME", MB_OK | MB_ICONERROR);
+
+			DestroyWindow(MainWindow);
+
+			CloseHandle(Mutex);
+
+			return 1;
+		}
+
+		freopen("CONOUT$", "w", stdout);
+		freopen("CONOUT$", "w", stderr);
+		freopen("CONIN$",  "r", stdin);
+
+		SetConsoleTitle("FocusIME Debug Console");
+
+		std::ios::sync_with_stdio(true);
+
+		std::wcout.clear();
+		std::cout.clear();
+		std::wcerr.clear();
+		std::cerr.clear();
+		std::wcin.clear();
+		std::cin.clear();
+	}
+#	endif
+
 	GLogFile.open("Log.txt", std::ios::out | std::ios::app);
 
 	if (!GLogFile.is_open())
@@ -161,11 +188,13 @@ int WINAPI WinMain(HINSTANCE Instance, HINSTANCE, LPSTR, int)
 
 	PrintLog("FocusIME is shutting down...");
 
-	{
-		std::lock_guard Lock(GLogMutex);
+	GLogFile.close();
 
-		GLogFile.close();
+#	if BUILD_DEBUG || BUILD_DEVELOPMENT
+	{
+		FreeConsole();
 	}
+#	endif
 
 	UnhookWinEvent(FocusEventHook);
 
@@ -324,10 +353,6 @@ void PrintLog(const std::string& Text)
 
 	const long long Milliseconds = (std::chrono::duration_cast<std::chrono::milliseconds>(Now.time_since_epoch()) % 1000).count();
 
-	std::lock_guard Lock(GLogMutex);
-
-	if (!GLogFile.is_open()) return;
-
 	const std::tm* LocalTime = std::localtime(&Time); // NOLINT(concurrency-mt-unsafe)
 
 	char Buffer[] = "[2025-06-21 20:05:04.305]: ";
@@ -344,7 +369,11 @@ void PrintLog(const std::string& Text)
 
 	GLogFile << Buffer << Text << std::endl;
 
-	GLogFile.flush();
+#if BUILD_DEBUG || BUILD_DEVELOPMENT
+	{
+		std::clog << Buffer << Text << std::endl;
+	}
+#endif
 }
 
 // ReSharper restore CppDeprecatedEntity