#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <eventloop.h>

int main() {
  struct tlsl_event timer, pipe_ev;
  EVENTLOOP_STACK_SCOPED(el);
  tlsl_event_id_t id;
  uint32_t flags;

  int pfds[2];
  if (pipe(pfds))
    return 1;

  pid_t pid = fork();
  if (pid < 0)
    return 1;

  if (!pid) {
    char buf[] = "hello!";
    sleep(5);
    write(pfds[1], buf, sizeof(buf));
    exit(0);
  }

  if (tlsl_eventloop_init(&el))
    return 1;

  if (tlsl_eventloop_add_timer(&el, &timer, 2000, false))
    return 1;

  if (tlsl_eventloop_add_fd(&el, &pipe_ev, pfds[0], TLSL_EVENT_READABLE))
    return 1;

  for (;;) {
    if (tlsl_eventloop_wait(&el, &id, &flags, -1)) {
      fprintf(stderr, "failed to wait");
      continue;
    }

    if (tlsl_event_id_eq(id, timer.id)) {
      tlsl_eventloop_clear(&el, &timer);
      printf("timer tick flags=%u\n", flags);
    }
    else if (tlsl_event_id_eq(id, pipe_ev.id)) {
      char buf[1024] = { 0 };
      read(pfds[0], buf, sizeof(buf) - 1);
      printf("pipe event flags=%u buf=%s\n", flags, buf);
      break;
    }
    else {
      fprintf(stderr, "unknown id");
    }
  }

  tlsl_eventloop_remove(&el, &timer);
  tlsl_eventloop_remove(&el, &pipe_ev);
  
  return 0;
}