export const PUBLIC_ROUTES = ['/', '/login', '/signup', '/auth/callback'] as const

/**
 * Pure auth decision logic — no Nuxt/Supabase dependencies.
 * Returns the path to redirect to, or null if no redirect is needed.
 */
export function checkAuthRedirect(
  userValue: { id: string } | null,
  path: string,
): string | null {
  if ((PUBLIC_ROUTES as readonly string[]).includes(path)) return null
  if (!userValue) return '/'
  return null
}