export type SecretStatus = "ok" | "expiring" | "expired";

/** Computes status + days-left for a secret, matching Sloth Manager's original semantics. */
export function computeSecretStatus(
  expiryDate: string,
  warnDays: number,
  now: Date = new Date(),
): { status: SecretStatus; daysLeft: number } {
  const expiry = new Date(`${expiryDate}T00:00:00Z`);
  const today = new Date(Date.UTC(now.getUTCFullYear(), now.getUTCMonth(), now.getUTCDate()));
  const daysLeft = Math.round((expiry.getTime() - today.getTime()) / (1000 * 60 * 60 * 24));

  let status: SecretStatus;
  if (daysLeft < 0) status = "expired";
  else if (daysLeft <= warnDays) status = "expiring";
  else status = "ok";

  return { status, daysLeft };
}