#include <memory>

#include "engine/renderer/core.h"
#include "engine/window/event.h"

#include "engine/renderer/wavefront.h"

std::unique_ptr<IApplication> Engine::s_app = nullptr;
std::shared_ptr<Window> Engine::s_window = nullptr;
bool Engine::s_running = false;

void Engine::Run(std::unique_ptr<IApplication> app) {
    s_app = std::move(app);
    s_window = Window::GetInstance();
    s_running = true;

    s_app->OnInit();

    s_window->Subscribe<WindowCloseRequested>([](const WindowCloseRequested& e) {
        Engine::s_running = false;
    });

    s_window->Subscribe<WindowResized>([](const WindowResized& e) {
        Engine::s_app->OnWindowResized(e);
    });

    while (s_running) {
        s_window->ProcessEvents();

        s_app->OnUpdate();

        s_app->OnRender();

        s_window->SwapBuffers();
    }

    s_app->OnShutdown();

    s_window->Destroy();
    s_app.reset();
}