/**
 * Canonical human-readable labels for URL path segments. Used by the smart
 * back button to derive a sensible "Back to <X>" label from the URL when a
 * detail page hasn't registered an explicit back-context hint, and by the
 * mobile topbar's title fallback.
 *
 * Add new top-level routes here so the back button doesn't fall through to
 * a slugified guess (e.g. "berths" -> "Berths" works automatically via
 * `formatSegment`, but "audit" would render as "Audit" instead of "Audit Log"
 * without the explicit entry).
 */
export const SEGMENT_LABELS: Record<string, string> = {
  dashboard: 'Dashboard',
  clients: 'Clients',
  yachts: 'Yachts',
  companies: 'Companies',
  interests: 'Interests',
  berths: 'Berths',
  documents: 'Documents',
  files: 'Files',
  expenses: 'Expenses',
  invoices: 'Invoices',
  email: 'Email',
  inbox: 'Inbox',
  reminders: 'Reminders',
  alerts: 'Alerts',
  settings: 'Settings',
  admin: 'Administration',
  reports: 'Reports',
  tenancies: 'Tenancies',
  residential: 'Residential',
  new: 'New',
  edit: 'Edit',
  profile: 'Profile',
  notifications: 'Notifications',
  'website-analytics': 'Website Analytics',
};

/** UUID v4-ish (or any 36-char hex+dash) - used to skip entity-id segments
 *  from URL-derived labels since they're never human-readable. */
export const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;

export function isIdSegment(segment: string): boolean {
  return UUID_RE.test(segment);
}

export function formatSegment(segment: string): string {
  return (
    SEGMENT_LABELS[segment] ?? segment.replace(/-/g, ' ').replace(/\b\w/g, (c) => c.toUpperCase())
  );
}