/*
Crafter®.Graphics
Copyright (C) 2025 Catcrafts®
catcrafts.net

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License version 3.0 as published by the Free Software Foundation;

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
*/

module;

#ifdef CRAFTER_GRAPHICS_WAYLAND
#include <xkbcommon/xkbcommon.h>
#include "../lib/xdg-shell-client-protocol.h"
#include "../lib/wayland-xdg-decoration-unstable-v1-client-protocol.h"
#include <wayland-cursor.h>
#include <xkbcommon/xkbcommon.h>
#include <wayland-client.h>
#include <wayland-client-protocol.h>
#endif

export module Crafter.Graphics:WindowBase;
import std;
import :Types;
import Crafter.Event;

export namespace Crafter {
    enum WindowCapabilities {
        CRAFTER_WINDOWCAPTABILITIES_FRAMEBUFFER = 0b1,
        CRAFTER_WINDOWCAPTABILITIES_KEYBOARD = 0b10,
        CRAFTER_WINDOWCAPTABILITIES_MOUSE = 0b100,
    };

    class UiElementBase;
    class WindowBase {
        public:
        Event<void> onClose;
        Event<void> onUpdate;
        bool open;
        std::vector<std::unique_ptr<UiElementBase>> elements;
        WindowBase(WindowBase&) = delete;
        WindowBase(WindowBase&&) = delete;
        WindowBase& operator=(const WindowBase&) = delete;
        void StartSync();
        void StartUpdate(void* window);
        void StopUpdate();
        #ifdef CRAFTER_GRAPHICS_WAYLAND
        WindowBase();
        ~WindowBase();
        #endif
        protected:
        friend class WindowKeyboard;
        friend class WindowFramebuffer;
        friend class WindowTitle;
        #ifdef CRAFTER_GRAPHICS_WAYLAND
        wl_surface* surface = nullptr;
        wl_callback* cb = nullptr;
        static void wl_surface_frame_done(void* data, struct wl_callback *cb, uint32_t time);
        static wl_callback_listener surface_frame_listener;
        #endif
    };
}