/**
 * @file Window.h
 * @author apio (cloudapio.eu)
 * @brief UI windows.
 *
 * @copyright Copyright (c) 2023, the Luna authors.
 *
 */

#pragma once
#include <luna/OwnedPtr.h>
#include <luna/StringView.h>
#include <ui/Canvas.h>
#include <ui/Mouse.h>
#include <ui/Rect.h>
#include <ui/Widget.h>

namespace ui
{
    class Window
    {
      public:
        static Result<Window*> create(Rect rect, bool decorated = true);

        void set_title(StringView title);

        void set_background(Color color)
        {
            m_background = color;
        }

        void set_main_widget(Widget& widget)
        {
            check(!m_main_widget);
            widget.set_window(this, m_canvas.rect(), {});
            m_main_widget = &widget;
        }

        Canvas& canvas()
        {
            return m_canvas;
        }

        void update();

        void close();

        Result<void> draw();
        Result<void> handle_mouse_leave();
        Result<void> handle_mouse_move(ui::Point position);
        Result<void> handle_mouse_buttons(ui::Point position, int buttons);

        int id() const
        {
            return m_id;
        }

        ~Window();

      private:
        int m_id;
        Canvas m_canvas;
        Widget* m_main_widget { nullptr };
        Color m_background { ui::BLACK };
        Option<int> m_old_mouse_buttons;
    };
}