function pad(num) {
  return `${num}`.padStart(2, "0");
}

function formatDate(date) {
  const target = date instanceof Date ? date : new Date(date);
  return `${target.getFullYear()}-${pad(target.getMonth() + 1)}-${pad(target.getDate())}`;
}

function formatDisplayDateTime(value) {
  if (!value) {
    return "";
  }
  try {
    const target = new Date(value);
    return `${target.getFullYear()}-${pad(target.getMonth() + 1)}-${pad(target.getDate())} ${pad(target.getHours())}:${pad(
      target.getMinutes()
    )}`;
  } catch (error) {
    return value;
  }
}

module.exports = {
  formatDate,
  formatDisplayDateTime
};