/** Refresh-session TTL metadata when the server expiry is unavailable. */
export const REFRESH_COOKIE_DAYS = 30

/**
 * Resolves the refresh-token cookie's absolute expiry timestamp (ms epoch).
 * Prefers the server-provided `expiresAt` (ISO string); falls back to
 * `REFRESH_COOKIE_DAYS` from now when it's missing or unparsable.
 */
export const parseRefreshExpiry = (expiresAt?: string): number => {
  if (expiresAt) {
    const parsed = Date.parse(expiresAt)

    if (Number.isFinite(parsed)) return parsed
  }

  return Date.now() + REFRESH_COOKIE_DAYS * 24 * 60 * 60 * 1000
}