#include "Renderer.h"
#include "SDL.h"
#include "SDL_render.h"
#include "engine_build_config.h"
#include <stdbool.h>
#include <stdlib.h>

#ifdef DEBUG_ENGINE
#include <stdio.h>
#endif /* DEBUG_ENGINE */

typedef struct renderer {
  SDL_Renderer *SDL_base_renderer;
} Renderer;

Renderer *create_renderer() { return (Renderer *)malloc(sizeof(Renderer)); }

bool init_renderer(Renderer *renderer, SDL_Window *window) {
  if (!renderer || !window) {
    return false;
  }

  renderer->SDL_base_renderer = SDL_CreateRenderer(
      window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);

  // Technically speaking, I believe it should be possible to just return
  // the pointer. However, to make sure that everything is clear, I am
  // performing a test that returns true or false based on whether the
  // pointer was initialised or not.
  return renderer->SDL_base_renderer ? true : false;
}

void render_clear(const Renderer *renderer, SDL_Color color) {
  SDL_SetRenderDrawColor(renderer->SDL_base_renderer, color.r, color.r, color.b,
                         color.a);

  SDL_RenderClear(renderer->SDL_base_renderer);
}

void swap_buffers(const Renderer *renderer) {
  SDL_RenderPresent(renderer->SDL_base_renderer);
}

void destroy_renderer(Renderer *renderer) {
  if (renderer) {
    if (renderer->SDL_base_renderer) {
      SDL_DestroyRenderer(renderer->SDL_base_renderer);
      renderer->SDL_base_renderer = NULL;
    }

    free(renderer);
    renderer = NULL;

#ifdef DEBUG_ENGINE
    printf("Renderer destroyed successfully\n");
#endif /* DEBUG_ENGINE */
  }
}