// test.cpp : 定义应用程序的入口点。
//

#include "stdafx.h"
#include "VTM_IL.h"

#include<string>
#include <windows.h>                  
#include <shellapi.h>
#include <fstream>
#include <ShlObj.h>

using namespace std;

#define MAX_LOADSTRING 100

const int HOTKEY_ID = 1;

double horizontalScale;
double verticalScale;
HWND taskbar;
RECT position;

// 全局变量:
HINSTANCE hInst;								// 当前实例
TCHAR szTitle[MAX_LOADSTRING];					// 标题栏文本
TCHAR szWindowClass[MAX_LOADSTRING];			// 主窗口类名

// 此代码模块中包含的函数的前向声明:
ATOM				MyRegisterClass(HINSTANCE hInstance);
BOOL				InitInstance(HINSTANCE, int);
LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK	About(HWND, UINT, WPARAM, LPARAM);

int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
	UNREFERENCED_PARAMETER(hPrevInstance);
	UNREFERENCED_PARAMETER(lpCmdLine);

 	// TODO: 在此放置代码。
	MSG msg;
	HACCEL hAccelTable;

	// 初始化全局字符串
	LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
	LoadString(hInstance, IDC_TEST, szWindowClass, MAX_LOADSTRING);
	MyRegisterClass(hInstance);

	// 执行应用程序初始化:
	if (!InitInstance (hInstance, nCmdShow))
	{
		return FALSE;
	}

	hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_TEST));

	// 主消息循环:
	while (GetMessage(&msg, NULL, 0, 0))
	{
		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}

	return (int) msg.wParam;
}



//
//  函数: MyRegisterClass()
//
//  目的: 注册窗口类。
//
//  注释:
//
//    仅当希望
//    此代码与添加到 Windows 95 中的“RegisterClassEx”
//    函数之前的 Win32 系统兼容时，才需要此函数及其用法。调用此函数十分重要，
//    这样应用程序就可以获得关联的
//    “格式正确的”小图标。
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
	WNDCLASSEX wcex;

	wcex.cbSize = sizeof(WNDCLASSEX);

	wcex.style			= CS_HREDRAW | CS_VREDRAW;
	wcex.lpfnWndProc	= WndProc;
	wcex.cbClsExtra		= 0;
	wcex.cbWndExtra		= 0;
	wcex.hInstance		= hInstance;
	wcex.hIcon			= LoadIcon(hInstance, MAKEINTRESOURCE(IDI_TEST));
	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);
	wcex.hbrBackground	= (HBRUSH)(COLOR_WINDOW+1);
	wcex.lpszMenuName	= MAKEINTRESOURCE(IDC_TEST);
	wcex.lpszClassName	= szWindowClass;
	wcex.hIconSm		= LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

	return RegisterClassEx(&wcex);
}

int GetVersion(char** pVersion)
{
	char szFileName[MAX_PATH] = {0};
	char szFilePath[MAX_PATH] = {0};
	GetModuleFileNameA(NULL, szFileName, sizeof(szFileName));
	string strFileName = szFileName;
	int nPos = strFileName.find_last_of("\\");
	string strDir = strFileName.substr(0, nPos);
	sprintf_s(szFilePath, MAX_PATH,"%s\\active.txt", strDir.c_str());

	char cVer[MAX_PATH] = {0};
	ifstream infile(szFilePath);
	if(infile) // 有该文件
	{
		if(infile.getline(cVer, MAX_PATH))
		{
			memcpy_s(*pVersion, MAX_PATH, cVer, MAX_PATH);
			infile.close();

			return 1;
		}
		else
		{
			MessageBoxA(NULL,"获取版本信息失败：文件内容为空",NULL,0);
			return 0;
		}		
	}
	else
	{
		MessageBoxA(NULL,"获取版本信息失败：文件打开失败",NULL,0);	
		return 0;
	}

	infile.close();

	return 0;
}

BOOL GetSpShellPath(char** pPath)
{
	char* pVer = new char[MAX_PATH];
	memset(pVer, 0, MAX_PATH);

	char szFileName[MAX_PATH] = {0};
	char szFilePath[MAX_PATH] = {0};
	GetModuleFileNameA(NULL, szFileName, sizeof(szFileName));
	string strFileName = szFileName;
	int nPos = strFileName.find_last_of("\\");
	string strDir = strFileName.substr(0, nPos);

	if(GetVersion(&pVer))
	{
		sprintf_s(szFilePath, MAX_PATH, "%s\\%s\\bin\\SpShell.exe", strDir.c_str(), pVer);
	}
	else
	{
		return FALSE;
	}

	
	memcpy_s(*pPath, MAX_PATH, szFilePath, MAX_PATH);

	if (NULL != pVer)
	{
		free(pVer);
		pVer = NULL;
	}

	ifstream shellFile(*pPath);
	if(shellFile)
	{
		return TRUE;
	}
	else
	{
		MessageBoxA(NULL,"获取执行文件失败：文件无效或文件不存在",NULL,0);
		return FALSE;
	}
}

BOOL Execute(const char* cExeName)
{
	SHELLEXECUTEINFOA sei = {sizeof(SHELLEXECUTEINFOA)};
	sei.lpVerb = "runas";
	sei.lpFile = cExeName;
	sei.nShow = SW_SHOWNORMAL;

	if (!ShellExecuteExA(&sei))
	{
		DWORD dwError = GetLastError();
		char szError[128];
		memset(szError, '\0', 128);
		sprintf_s(szError, 128, "执行应用程序失败：%u", dwError);
		MessageBoxA(NULL, szError,NULL,0);
		return FALSE;
	}

	return TRUE;
}

BOOL RunSpshell()
{
	char* pSpPath = new char[MAX_PATH];
	memset(pSpPath, 0, MAX_PATH);

	if (!GetSpShellPath(&pSpPath))
	{
		return FALSE;
	}

	if (!Execute(pSpPath))
	{
		return FALSE;
	}

	if (NULL != pSpPath)
	{
		free(pSpPath);
		pSpPath = NULL;
	}

	return TRUE;
}

//校正
void checkActiveTxtAttr()
{
	char vtmexePath[MAX_PATH] = {0};
	GetModuleFileNameA(NULL, vtmexePath, sizeof(vtmexePath));
	string strRunVtmPath = vtmexePath;
	int nPosVtm = strRunVtmPath.find_first_of("\\version\\VTM.exe");
	if(nPosVtm<0)
	{
		MessageBoxA(NULL,"VTM.exe 不在X:\\version\\VTM.exe下",NULL,0);
		return ;
	}
	int nPos = strRunVtmPath.find_last_of("\\");
	string strVersionDir = strRunVtmPath.substr(0, nPos);
	CString strActiveTxtPath=strVersionDir.c_str();//+"active.txt"; 
	strActiveTxtPath +="\\"; 
	strActiveTxtPath +="active.txt";

    CFileStatus rStatus;
    CFile::GetStatus(strActiveTxtPath,rStatus);//获得文件的属性设置
	//如果文件为只读的，将只读属性去掉
	if(rStatus.m_attribute&CFile::readOnly){
		rStatus.m_attribute=rStatus.m_attribute & 0x3E ;      
        CFile::SetStatus(strActiveTxtPath, rStatus );//更改文件的属性设置
	}
}

void RegistHotkey() 
{
	RegisterHotKey(
		NULL, // this thread will process the hotkey
		HOTKEY_ID,
		MOD_WIN, // win
		VK_OEM_3  // ~
	);
}

void UnRegistHotkey() 
{
	UnregisterHotKey(NULL, HOTKEY_ID);
}

void FormatPosition() 
{
	if (position.left < 0) {
		// taskbar is on the left, move right
		position.right -= position.left;
		position.left = 0;
	}
	if (position.bottom < 0) {
		// taskbar is on the bottom, move up
		position.top -= position.bottom;
		position.bottom = 0;
	}
}

void HideTaskbarEx() 
{
	auto empty = CreateRectRgn(0, 0, 0, 0);
	SetWindowRgn(taskbar, empty, true);
	DeleteObject(empty);
}

void ShowTaskbarEx()
{
	auto region = CreateRectRgn(position.left, position.top, position.right * horizontalScale, position.bottom * verticalScale);
	SetWindowRgn(taskbar, region, true);
	DeleteObject(region);
}

VOID HideTaskBar(BOOL bHide) 
{ 
	int nCmdShow; 
	HWND hWnd; 
	LPARAM lParam; 
	
	hWnd = FindWindow(_T("Shell_TrayWnd"), NULL); 
	if (bHide == TRUE) {
		nCmdShow = SW_HIDE;
		lParam = ABS_AUTOHIDE | ABS_ALWAYSONTOP;
	}
	else {
		nCmdShow = SW_SHOW;
		lParam = ABS_ALWAYSONTOP;
	}
	if (hWnd != NULL) {
		taskbar = hWnd;
		//ShowWindow(hWnd, nCmdShow);
		//GetWindowRect(hWnd, &position);
		//FormatPosition();
		//HideTaskbarEx();
#if defined(DEVOPS_ON_PRD) || defined(DEVOPS_ON_UAT)
		APPBARDATA apBar; 
		memset(&apBar, 0, sizeof(apBar));
		apBar.cbSize = sizeof(apBar);
		apBar.hWnd = hWnd;
		if (apBar.hWnd != NULL)
		{
			apBar.lParam = lParam;
			SHAppBarMessage(ABM_SETSTATE, &apBar);
		}
#endif // DEVOPS_ON_PRD
	}
}

// Ref: https://stackoverflow.com/questions/54912038/querying-windows-display-scaling
void GetDisplayScale() 
{
	auto activeWindow = GetActiveWindow();
	HMONITOR monitor = MonitorFromWindow(activeWindow, MONITOR_DEFAULTTONEAREST);

	// Get the logical width and height of the monitor
	MONITORINFOEX monitorInfoEx;
	monitorInfoEx.cbSize = sizeof(monitorInfoEx);
	GetMonitorInfo(monitor, &monitorInfoEx);
	auto cxLogical = monitorInfoEx.rcMonitor.right - monitorInfoEx.rcMonitor.left;
	auto cyLogical = monitorInfoEx.rcMonitor.bottom - monitorInfoEx.rcMonitor.top;

	// Get the physical width and height of the monitor
	DEVMODE devMode;
	devMode.dmSize = sizeof(devMode);
	devMode.dmDriverExtra = 0;
	EnumDisplaySettings(monitorInfoEx.szDevice, ENUM_CURRENT_SETTINGS, &devMode);
	auto cxPhysical = devMode.dmPelsWidth;
	auto cyPhysical = devMode.dmPelsHeight;

	// Calculate the scaling factor
	horizontalScale = ((double)cxPhysical / (double)cxLogical);
	verticalScale = ((double)cyPhysical / (double)cyLogical);

#ifdef _DEBUG
	printf("horizontalScale: %f\n", horizontalScale);
	printf("verticalScale: %f\n", verticalScale);
#endif
}
//
//   函数: InitInstance(HINSTANCE, int)
//
//   目的: 保存实例句柄并创建主窗口
//
//   注释:
//
//        在此函数中，我们在全局变量中保存实例句柄并
//        创建和显示主程序窗口。
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
	// 校正active.txt的属性
	checkActiveTxtAttr();

   //启动框架
	if (RunSpshell()) {
		HideTaskBar(TRUE);
	}

    hInst = hInstance; // 将实例句柄存储在全局变量中

   /*hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);

   if (!hWnd)
   {
      return FALSE;
   }

   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);*/
   //MessageBoxA(NULL,"Hello",NULL,0);

   return FALSE;
}

//
//  函数: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  目的: 处理主窗口的消息。
//
//  WM_COMMAND	- 处理应用程序菜单
//  WM_PAINT	- 绘制主窗口
//  WM_DESTROY	- 发送退出消息并返回
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	int wmId, wmEvent;
	PAINTSTRUCT ps;
	HDC hdc;

	switch (message)
	{
	case WM_COMMAND:
		wmId    = LOWORD(wParam);
		wmEvent = HIWORD(wParam);
		// 分析菜单选择:
		switch (wmId)
		{
		case IDM_ABOUT:
			DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
			break;
		case IDM_EXIT:
			DestroyWindow(hWnd);
			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
		}
		break;
	case WM_PAINT:
		hdc = BeginPaint(hWnd, &ps);
		// TODO: 在此添加任意绘图代码...
		EndPaint(hWnd, &ps);
		break;
	case WM_DESTROY:
		PostQuitMessage(0);
		break;
	default:
		return DefWindowProc(hWnd, message, wParam, lParam);
	}
	return 0;
}

// “关于”框的消息处理程序。
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	UNREFERENCED_PARAMETER(lParam);
	switch (message)
	{
	case WM_INITDIALOG:
		return (INT_PTR)TRUE;

	case WM_COMMAND:
		if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
		{
			EndDialog(hDlg, LOWORD(wParam));
			return (INT_PTR)TRUE;
		}
		break;
	}
	return (INT_PTR)FALSE;
}