#pragma once

#include <SDL.h>
#include <imgui.h>
#include "../common/std.hpp"
#include "../common/time.hpp"

/// converts hex color to float vector
#define RGBAHexToF(R8,G8,B8,A8) ImVec4(((u8)35)/255.0f, ((u8)35)/255.0f, ((u8)50)/255.0f, ((u8)255)/255.0f)
/// converts float vector to hex color
#define RGBAFToHex(VEC4) {(u8)(VEC4.x*255), (u8)(VEC4.y*255), (u8)(VEC4.z*255), (u8)(VEC4.w*255)}

namespace ougge::gui {

#define default_font "DroidSans"

class MainWindow {
public:
    i32 fps_max = 60;
    f32 default_font_size = 14.0f;
    ImVec4 clear_color = RGBAHexToF(35,35,50,255);
    SDL_Window* sdl_window = nullptr;
    SDL_Renderer* sdl_renderer = nullptr;

private:
    bool show_debug_window = true;
    bool show_demo_window = false;
    bool show_metrics_window = false;

public:
    void open(const std::string& window_title);
    void close();

    /// process io events happened since previous frame
    void pollEvents(bool* loopRunning);
    void beginFrame();
    void endFrame();

    f32 getDPI();
private:
    void draw_debug_window();
    void draw_bg_window();
};

}