#pragma once

#include "xe_window.hpp"
#include "xe_device.hpp"
#include "xe_renderer.hpp"
#include "xe_camera.hpp"
#include "xe_descriptors.hpp"
#include "xe_image.hpp"

#include <chrono> 
#include <string>
namespace xe {

class Engine {

  public:

    Engine(int width, int height, std::string name);

    ~Engine();

    Engine(const Engine&) = delete;
    Engine operator=(const Engine&) = delete;

    Window& getWindow() {return xeWindow;}
    Camera& getCamera() {return xeCamera;}

    std::shared_ptr<Model> loadModelFromFile(const std::string &filename);
    std::shared_ptr<Model> loadModelFromData(std::vector<Model::Vertex> vertices, std::vector<uint32_t> indices);
    std::shared_ptr<Image> loadImage(const std::string &filename);
    
    bool beginFrame() { return xeRenderer.beginFrame(); }
    void endFrame() { xeRenderer.endFrame(); }
    void close() { vkDeviceWaitIdle(xeDevice.device()); }

    bool poll();
    float getFrameTime() { return frameTime; }

  private:

    void loadDescriptorPool();

    Window xeWindow;
    Device xeDevice;
    Renderer xeRenderer;
    Camera xeCamera;

    std::chrono::_V2::system_clock::time_point currentTime;
    float frameTime;

    float FOV = 50.f;

    std::unique_ptr<DescriptorPool> xeDescriptorPool;

    friend class RenderSystem;
};

}