#pragma once

#pragma warning(disable: 4251)

#include "WindowImpl.h"

#include "Event.h"

#include <memory>

#include <string_view>

#include <queue>

#include <chrono>

#include <string_view>

#include <stdint.h>

namespace sh::window

{

class Window

{

public:

using StyleFlag = uint32_t;

enum Style

{

Default = 0b0000,

Resize = 0b0001,

Full = 0b0010

};

public:

SH_WINDOW_API Window();

SH_WINDOW_API ~Window();

SH_WINDOW_API void Create(const std::string& title, int wsize, int hsize, StyleFlag style = Style::Default);

SH_WINDOW_API bool PollEvent(Event& event);

SH_WINDOW_API void Close();

/// @brief 프레임 제한, 측정 함수

/// @brief while문 안에 넣을 것

SH_WINDOW_API void ProcessFrame();

SH_WINDOW_API void SetFps(unsigned int fps);

SH_WINDOW_API void SetTitle(std::string_view title);

SH_WINDOW_API void SetSize(int width, int height);

/// @brief 프레임을 맞출 때 시스템 타이머를 사용한다.

/// @brief 주의) 백그라운드 상태에서 프레임이 느려질 수 있음

/// @param bUse true면 시스템 타이머를, false면 바쁜 대기를 사용

SH_WINDOW_API void UseSystemTimer(bool bUse);

SH_WINDOW_API auto IsUsingSystemTimer() const -> bool { return bUsingSysTimer; }

SH_WINDOW_API auto GetNativeHandle() const -> WinHandle { return handle; }

SH_WINDOW_API auto GetDeltaTime() const -> double { return deltaTime; }

SH_WINDOW_API auto GetWidth() const -> uint32_t;

SH_WINDOW_API auto GetHeight() const -> uint32_t;

SH_WINDOW_API auto IsOpen() const -> bool { return bOpen; }

private:

std::unique_ptr<WindowImpl> winImpl;

WinHandle handle;

std::string title;

std::queue<Event> events;

unsigned int fps = 60;

double deltaTime = 0.0;

bool bOpen = false;

bool bUsingSysTimer = true;

};

}//namespace