#include "./sys_check.hpp"

// use message boxes to notify the user of system failure
#include <SDL3/SDL.h>

#include <cstdlib>

#if defined(_WIN32) || defined(WIN32)

#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif

#include <windows.h>

typedef LONG NTSTATUS, *PNTSTATUS;
#define STATUS_SUCCESS (0x00000000)

void runSysCheck(void) {
	NTSTATUS(WINAPI *RtlGetVersion)(LPOSVERSIONINFOEXW);
	OSVERSIONINFOEXW osInfo;

	HMODULE lib = GetModuleHandleW(L"ntdll.dll");
	if (lib) {
		*(FARPROC*)&RtlGetVersion = GetProcAddress(lib, "RtlGetVersion");

		if (NULL != RtlGetVersion) {
			osInfo.dwOSVersionInfoSize = sizeof(osInfo);
			RtlGetVersion(&osInfo);

			// check
			if (
				osInfo.dwBuildNumber >= 26000 // canary versions of 11 24H2 included
			) {
				SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Unsupported System", "Your version of windows is too new and endangers the privacy of all involved.", nullptr);
				exit(0);
			}
		}
	}
}

#else

void runSysCheck(void) {
	// do nothing
}

#endif