const RsvTimetableService = {
  get_all() {
    return fetch(get_rest_url('timetable'), { method: 'GET' })
      .then(r => {
        if (!r.ok) throw new Error(`fetch timetables failed: ${r.status}`);
        return r.json();
      });
  },

  get_availability_for_date(timetable_id, date) {
    const params = new URLSearchParams({
      date: date.toISOString().slice(0, 10),
    });

    return fetch(get_rest_url(`timetable/${timetable_id}/availability?${params}`), { method: 'GET' })
      .then(r => {
        if (!r.ok) throw new Error(`fetch availability failed: ${r.status}`);
        return r.json();
      });
  }
}