// SPDX-License-Identifier: MIT
// Author: Giovanni Santini
// Github: @San7o

// Create an SDL3 window and poll events

#include <stdio.h>
#include <SDL3/SDL_init.h>
#include <SDL3/SDL_video.h>
#include <SDL3/SDL_error.h>
#include <SDL3/SDL_render.h>
#include <SDL3/SDL_events.h>
#include <SDL3/SDL_keyboard.h>

#define WINDOW_NAME   "hello world window"
#define WINDOW_WIDTH  500
#define WINDOW_HEIGHT 500
#define WINDOW_FLAGS  0

int main(void)
{
  if (!SDL_Init(SDL_INIT_VIDEO))
  {
    fprintf(stderr, "Error initializing SDL: %s\n", SDL_GetError());
    return 1;
  }

  SDL_Window *window;
  SDL_Renderer *renderer;
  SDL_Event event;

  bool ret = SDL_CreateWindowAndRenderer(WINDOW_NAME, WINDOW_WIDTH,
                                         WINDOW_HEIGHT, WINDOW_FLAGS,
                                         &window, &renderer);
  if (!ret)
  {
    fprintf(stderr, "Error Creating SDL Window: %s\n", SDL_GetError());
    return 1;
  }

  while(1)
  {  
    if (SDL_PollEvent(&event))
    {
      if (SDL_EVENT_KEY_DOWN == event.type)
      {
        if (event.key.key == 'q' || event.key.key == 0x1b /* ESC */)
          break;
      }
    }

    SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
    if (!SDL_RenderClear(renderer))
    {
      fprintf(stderr, "Error Clearing SDL Window: %s\n", SDL_GetError());    
      goto cleanup;
    }
    SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);

    // Render frame...

    if (!SDL_RenderPresent(renderer))
    {
      fprintf(stderr, "Error Rendering SDL Window: %s\n", SDL_GetError());    
      goto cleanup;
    }
  }

 cleanup:

  SDL_DestroyRenderer(renderer);
  SDL_DestroyWindow(window);
  SDL_Quit();
  return 0;
}