module;

#include <cstdint>
#include <string>
#include <vector>
#include <wayland-client.h>
#include "xdg-shell-client-protocol.h"
#include "wayland-xdg-decoration-unstable-v1-client-protocol.h"

export module Crafter.Graphics:Window;
import Crafter.Event;
import :UiElement;
import :Types;
import Crafter.Component;

export namespace Crafter {
    class Window {
        public:
        Event<MousePoint> onMouseRightClick;
        Event<MousePoint> onMouseLeftClick;
        Event<MousePoint> onMouseRightHold;
        Event<MousePoint> onMouseLeftHold;
        Event<MousePoint> onMouseRightRelease;
        Event<MousePoint> onMouseLeftRelease;
        Event<MouseMoveEvent> onMouseMove;
        Event<MouseMoveEvent> onMouseEnter;
        Event<MouseMoveEvent> onMouseLeave;
        Event<double> onMouseScroll;
        Event<void> onClose;
        MousePoint currentMousePos;
        MousePoint lastMousePos;
        MousePoint mouseDelta;
        bool mouseLeftHeld = false;
        bool mouseRightHeld = false;
        ComponentRefVectorOwning<UiElement> elements;
        std::uint32_t width;
        std::uint32_t height;
        float scale = 1;
        Window(std::string name, std::uint32_t width, std::uint32_t height);
        ~Window();
        void Start();
        void Draw(std::uint32_t x, std::uint32_t y, std::uint32_t right, std::uint32_t down);
        private:
        Pixel* shm_data = NULL;
        bool configured = false;
        wl_shm* shm = NULL;
        wl_seat* seat = NULL;
        xdg_toplevel* xdgToplevel = NULL;
        xdg_wm_base* xdgWmBase = NULL;
        zxdg_decoration_manager_v1* manager = NULL;
        wl_surface* surface = NULL;
        wl_buffer* buffer = NULL;
        xdg_surface* xdgSurface = NULL;
        wl_display* display = NULL;
        inline static wl_compositor* compositor = NULL;
        static wl_pointer_listener pointer_listener;
        static wl_seat_listener seat_listener;
        static wl_registry_listener registry_listener;
        static xdg_surface_listener xdg_surface_listener;
        static xdg_toplevel_listener xdg_toplevel_listener;
        static void PointerListenerHandleMotion(void* data, wl_pointer* wl_pointer, uint time, wl_fixed_t surface_x, wl_fixed_t surface_y);
        static void PointerListenerHandleAxis(void*, wl_pointer*, std::uint32_t, std::uint32_t, wl_fixed_t value);
        static void PointerListenerHandleEnter(void* data, wl_pointer* wl_pointer, uint serial, wl_surface* surface, wl_fixed_t surface_x, wl_fixed_t surface_y);
        static void PointerListenerHandleLeave(void*, wl_pointer*, std::uint32_t, wl_surface*);
        static void xdg_toplevel_handle_close(void* data, xdg_toplevel*);
        static void handle_global(void* data, wl_registry* registry, std::uint32_t name, const char* interface, std::uint32_t version);
        static void pointer_handle_button(void* data, wl_pointer* pointer, std::uint32_t serial, std::uint32_t time, std::uint32_t button, std::uint32_t state);
        static void seat_handle_capabilities(void* data, wl_seat* seat, uint32_t capabilities);
        static void xdg_surface_handle_configure(void* data, xdg_surface* xdg_surface, std::uint32_t serial);
    };
}