#include <stdbool.h>

#include <SDL2/SDL.h>

const int SCREEN_WIDTH = 640;
const int SCREEN_HEIGHT = 480;

int main(int argc, char **args) {

  if (SDL_Init(SDL_INIT_EVERYTHING) != 0) {
    return 1;
  }

  SDL_Surface *screen_surface = NULL;

  SDL_Window *window = NULL;

  window = SDL_CreateWindow("Hello, SDL 2!", SDL_WINDOWPOS_UNDEFINED,
                            SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH,
                            SCREEN_HEIGHT, SDL_WINDOW_SHOWN);

  if (window == NULL) {
    return 1;
  }

  screen_surface = SDL_GetWindowSurface(window);

  SDL_FillRect(screen_surface, NULL,
               SDL_MapRGB(screen_surface->format, 0, 255, 0));

  SDL_UpdateWindowSurface(window);

  SDL_Event e;
  bool quit = false;
  while (!quit) {
    while (SDL_PollEvent(&e)) {
      if (e.type == SDL_QUIT) {
        quit = true;
      }
      if (e.type == SDL_KEYDOWN) {
        quit = true;
      }
      if (e.type == SDL_MOUSEBUTTONDOWN) {
        quit = true;
      }
    }
  }

  SDL_DestroyWindow(window);

  SDL_Quit();

  return 0;
};