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#pragma once
#include "memory.h"
#include "window.h"
#include "event.h"
#include "log.h"
#include "rendering/rhi.h"
#include "rendering/render_path.h"
#include "rendering/view.h"
#include "scene/scene.h"
#include "ui/ui_layer.h"
#include <string>
namespace Donut
{
// thin shell: owns the window, the RHI device, the Scene (document), the
// RenderPath (device-side rendering) and the UILayer (docking UI), and runs
// the frame loop that wires them together. all the rendering lives in the
// RHI + shared renderers; all the editing lives in the Scene + UI panels.
class Application : public AppActions
{
public:
Application(const std::string& name = "Donut",
int width = 1280, int height = 720);
~Application();
auto run() -> void;
auto close() -> void;
auto get_window() -> Window& { return *m_window; }
static auto get() -> Application& { return *s_instance; }
// AppActions — window/device changes requested by the Settings panel.
auto set_resolution(int w, int h) -> void override;
auto set_fullscreen(bool on) -> void override;
auto set_vsync(bool on) -> void override;
auto set_ui_scale(float scale) -> void override;
auto get_window_size(int& w, int& h) const -> void override;
auto is_fullscreen() const -> bool override;
auto export_frame(const ExportConfig& cfg) -> int override;
private:
auto on_init() -> void;
auto on_shutdown() -> void;
auto on_event(Event& event) -> void;
auto render_frame() -> void;
auto update_input(View view) -> void; // orbit / free-fly / zoom for the active camera
private:
Scope<Window> m_window;
Scope<RHI::Device> m_device;
Scope<Scene> m_scene;
Scope<RenderPath> m_render_path;
Scope<UILayer> m_ui;
// input tracking (per-frame transient state)
bool m_left_was_down = false;
double m_fps_last_x = 0.0, m_fps_last_y = 0.0;
double m_last_frame_time = 0.0;
double m_start_time = 0.0;
bool m_user_moving = false;
// windowed-mode geometry saved across a fullscreen toggle
int m_windowed_x = 100, m_windowed_y = 100, m_windowed_w = 1280, m_windowed_h = 720;
bool m_running = true;
bool m_minimized = false;
// kept for rebuilding the window when Vulkan fails and we retry on OpenGL
std::string m_title;
int m_init_w = 1280, m_init_h = 720;
static Application* s_instance;
};
}
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