#pragma once
#include "../global/Base.h"
#include"../myinput/Input.h"
#include<Windows.h>
#include <chrono>
#include <thread>

class Window {
public:
	Window(Input& p_input);
	~Window();

	//注册窗体类，创建一个窗体，显示
	bool initWindow(HINSTANCE hInstance, const uint32_t& width = 800, const uint32_t& height = 600);

	//托管了wndProc捕获的消息，并且进行处理
	void handleMessage(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);

	//每一帧/每一次循环，都会调用，捕获以及分发窗体消息
	void peekMessage();

	void swapBuffer();

	uint32_t getWidth() const { return mWidth; }
	uint32_t getHeight() const { return mHeight; }
	void* getCanvas() const { return mCanvasBuffer; }
	bool shouldClose() { return !mAlive; }

	void Test(int p_time){
		swapBuffer();
		std::this_thread::sleep_for(std::chrono::microseconds(p_time));
	}

	void Update() {
		POINT cursorPos;
		if (GetCursorPos(&cursorPos)) {
			m_input.HandelMouseInput(cursorPos.x, cursorPos.y);
		}
	}
private:
	BOOL createWindow(HINSTANCE hInstance);
	ATOM registerWindowClass(HINSTANCE hInstance);

public:
	static Window* currentWindow;				//当前的窗口实例

private:

	//为true表示当前窗体仍然在继续显示，程序一直在跑
	//为false表示窗体已经被命令关闭，程序需要退出
	bool		mAlive{ true };

	HINSTANCE	mWindowInst;
	WCHAR		mWindowClassName[100] = L"AppWindow";
	HWND		mHwnd;

	int			mWidth = 800;
	int			mHeight = 600;

	HDC			mhDC;						//当前窗口主dc
	HDC			mCanvasDC;					//创建的于mhDC相兼容的绘图用的dc
	HBITMAP		mhBmp;						//mCanvasDC内部生成的bitmap
	void*		mCanvasBuffer{ nullptr };	//mhBmp对应的内存起始位置指针

	Input&		m_input;
};