const DEFAULT_DAYS = 7
const MIN_DAYS = 1
const MAX_DAYS = 365

/**
 * Session lifetime in days (for cookie and DB expires_at). Uses SESSION_MAX_AGE_DAYS.
 * Clamped to 1–365 days.
 */
export function getSessionMaxAgeDays() {
  const raw = process.env.SESSION_MAX_AGE_DAYS != null
    ? Number.parseInt(process.env.SESSION_MAX_AGE_DAYS, 10)
    : Number.NaN
  if (Number.isFinite(raw)) return Math.max(MIN_DAYS, Math.min(MAX_DAYS, raw))
  return DEFAULT_DAYS
}