#include "canvas.h"
#include "simulation.h"
#include <SDL2/SDL.h>
#include <chrono>
#include <thread>

int main() {
  Canvas canvas(800, 600);
  RingBuffer<SimulationState> buffer(64);

  std::thread sim(simulation_thread, std::ref(buffer));
  std::thread render(render_thread, std::ref(buffer), std::ref(canvas));

  SDL_Init(SDL_INIT_VIDEO);
  SDL_Window *window =
      SDL_CreateWindow("Solar System", SDL_WINDOWPOS_CENTERED,
                       SDL_WINDOWPOS_CENTERED, canvas.width, canvas.height, 0);
  SDL_Renderer *renderer =
      SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
  SDL_Texture *texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGB24,
                                           SDL_TEXTUREACCESS_STREAMING,
                                           canvas.width, canvas.height);

  while (running) {
    void *pixels;
    int pitch;
    SDL_LockTexture(texture, nullptr, &pixels, &pitch);
    memcpy(pixels, canvas.pixels.data(), canvas.pixels.size() * sizeof(Color));
    SDL_UnlockTexture(texture);

    SDL_RenderClear(renderer);
    SDL_RenderCopy(renderer, texture, nullptr, nullptr);
    SDL_RenderPresent(renderer);

    SDL_Event e;
    while (SDL_PollEvent(&e)) {
      if (e.type == SDL_QUIT)
        running = false;
    }

    std::this_thread::sleep_for(std::chrono::milliseconds(16)); // ~60fps
  }

  sim.join();
  render.join();
}