const pad = (n: number): string => String(n).padStart(2, "0");

export const formatDate = (input: string | Date): string => {
  const d = typeof input === "string" ? new Date(input) : input;
  if (Number.isNaN(d.getTime())) return "—";
  return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}`;
};

export const formatDateTime = (input: string | Date): string => {
  const d = typeof input === "string" ? new Date(input) : input;
  if (Number.isNaN(d.getTime())) return "—";
  return `${formatDate(d)} ${pad(d.getHours())}:${pad(d.getMinutes())}`;
};