function localDate(date = new Date()) {
  const year = date.getFullYear();
  const month = String(date.getMonth() + 1).padStart(2, "0");
  const day = String(date.getDate()).padStart(2, "0");
  return `${year}-${month}-${day}`;
}

function shiftDate(value, days) {
  const date = new Date(`${value}T12:00:00`);
  date.setDate(date.getDate() + days);
  return localDate(date);
}

module.exports = { localDate, shiftDate };