#pragma once

#include <EGL/egl.h>
#include <wayland-egl.h>

#include "utils.h"
#include "window.h"

enum graphics_error_e : u8 {
  GRAPHICS_ERROR_NONE = 0,
  GRAPHICS_ERROR_ACQUIRE_DISPLAY,
  GRAPHICS_ERROR_SELECT_CONFIG,
  GRAPHICS_ERROR_USE_DESKTOP,
  GRAPHICS_ERROR_CREATE_CONTEXT,
};

struct graphics_s {
  EGLDisplay display;
  EGLContext context;
  EGLConfig config;
};

enum graphics_error_e wayc_graphics_init(struct graphics_s* graphics,
                                         struct wlstate_s* state);
void wayc_graphics_deinit(struct graphics_s* graphics);

enum renderer_error_e : u8 {
  RENDERER_ERROR_NONE = 0,
  RENDERER_ERROR_WINDOW_CREATION,
  RENDERER_ERROR_SURFACE_CREATION,
  RENDERER_ERROR_LOAD_FUNCTIONS,
};

struct renderer_s {
  struct graphics_s* graphics;
  wl_egl_window_t ewindow;
  EGLSurface esurface;

  i32 width, height;
};

enum renderer_error_e wayc_renderer_init(struct renderer_s* renderer,
                                         struct window_s* window,
                                         struct graphics_s* graphics, i32 width,
                                         i32 height);
static inline void wayc_renderer_resize(struct renderer_s* renderer, i32 width,
                                        i32 height) {
  wayc_notnull(renderer);
  renderer->width = width;
  renderer->height = height;
  wl_egl_window_resize(renderer->ewindow, width, height, 0, 0);
}

static inline void wayc_renderer_use(struct renderer_s* renderer) {
  wayc_notnull(renderer);
  struct graphics_s* graphics = renderer->graphics;
  EGLDisplay display = graphics->display;

  eglMakeCurrent(display, renderer->esurface, renderer->esurface,
                 graphics->context);
}

static inline void wayc_renderer_swap(struct renderer_s* renderer) {
  wayc_notnull(renderer);
  struct graphics_s* graphics = renderer->graphics;
  EGLDisplay display = graphics->display;

  eglSwapBuffers(display, renderer->esurface);
}

void wayc_renderer_deinit(struct renderer_s* renderer);