#include <windows.h>
#include <util/platform.h>
#include "advanced-scene-switcher.hpp"
//dasoven region_start
#include <TlHelp32.h>
#include <Psapi.h>
//dasoven region_end

using namespace std;

static bool GetWindowTitle(HWND window, string& title)
{
	size_t len = (size_t)GetWindowTextLengthW(window);
	wstring wtitle;

	wtitle.resize(len);
	if (!GetWindowTextW(window, &wtitle[0], (int)len + 1))
		return false;

	len = os_wcs_to_utf8(wtitle.c_str(), 0, nullptr, 0);
	title.resize(len);
	os_wcs_to_utf8(wtitle.c_str(), 0, &title[0], len + 1);
	return true;
}

static bool WindowValid(HWND window)
{
	LONG_PTR styles, ex_styles;
	RECT rect;
	DWORD id;

	if (!IsWindowVisible(window))
		return false;
	GetWindowThreadProcessId(window, &id);
	if (id == GetCurrentProcessId())
		return false;

	GetClientRect(window, &rect);
	styles = GetWindowLongPtr(window, GWL_STYLE);
	ex_styles = GetWindowLongPtr(window, GWL_EXSTYLE);

	if (ex_styles & WS_EX_TOOLWINDOW)
		return false;
	if (styles & WS_CHILD)
		return false;

	return true;
}

void GetWindowList(vector<string>& windows)
{
	HWND window = GetWindow(GetDesktopWindow(), GW_CHILD);

	while (window)
	{
		string title;
		if (WindowValid(window) && GetWindowTitle(window, title))
			windows.emplace_back(title);
		window = GetNextWindow(window, GW_HWNDNEXT);
	}
}

void GetCurrentWindowTitle(string& title)
{
	HWND window = GetForegroundWindow();
	//DWORD id;
	GetWindowTitle(window, title);
}

pair<int, int> getCursorPos()
{
	pair<int, int> pos(0, 0);
	POINT cursorPos;
	if (GetPhysicalCursorPos(&cursorPos))
	{
		pos.first = cursorPos.x;
		pos.second = cursorPos.y;
	}
	return pos;
}

bool isFullscreen()
{
	RECT appBounds;
	RECT rc;
	GetWindowRect(GetDesktopWindow(), &rc);
	HWND hwnd = GetForegroundWindow();
	if (hwnd != GetDesktopWindow() && hwnd != GetShellWindow())
	{
		GetWindowRect(hwnd, &appBounds);
		if (rc.bottom == appBounds.bottom && rc.top == appBounds.top && rc.left == appBounds.left
			&& rc.right == appBounds.right)
		{
			return true;
		}
	}
	return false;
}

//dasoven region_start
void GetProcessList(QStringList &processes) {

	HANDLE procSnapshot;
	PROCESSENTRY32 procEntry;

	procSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
	if (procSnapshot == INVALID_HANDLE_VALUE) return;

	procEntry.dwSize = sizeof(PROCESSENTRY32);

	if (!Process32First(procSnapshot, &procEntry)) {
		CloseHandle(procSnapshot);
		return;
	}

	do {
		QString tempexe = QString::fromWCharArray(procEntry.szExeFile);
		if (tempexe == "System") continue;
		if (tempexe == "[System Process]") continue;
		if (processes.contains(tempexe)) continue;
		processes.append(tempexe);
	} while (Process32Next(procSnapshot, &procEntry));

	CloseHandle(procSnapshot);
}

bool isInFocus(const QString &exeToCheck) {
	// only checks if the current foreground window is from the same executable,
	// may return true for incorrent not meant windows from a program
	HWND foregroundWindow = GetForegroundWindow();
	DWORD processId = 0;
	GetWindowThreadProcessId(foregroundWindow, &processId);

	HANDLE process = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, processId);
	if (process == NULL) return false;

	WCHAR executablePath[600];
	GetModuleFileNameEx(process, 0, executablePath, 600);
	CloseHandle(process);

	return exeToCheck == QString::fromWCharArray(executablePath).split(QRegExp("(/|\\\\)")).back();
}
//dasoven region_end

int getLastInputTime()
{
	LASTINPUTINFO lastInputInfo;
	lastInputInfo.cbSize = sizeof(LASTINPUTINFO);
	if (GetLastInputInfo(&lastInputInfo))
		return lastInputInfo.dwTime;
	return 0;
}

int getTime()
{
	return GetTickCount();
}

bool SS()
{
	bool time = false;
	if(SystemParametersInfo(
		SPI_GETSCREENSAVEACTIVE,
		NULL,
		&time,
		NULL
		));
	
	return time;
}