export default defineNuxtRouteMiddleware((to) => {
  const { isAuthenticated } = useAuth()

  // Pages that are accessible only when NOT logged in (Auth pages)
  const authPages = [
    '/auth/login', 
    '/auth/register', 
    '/auth/forgot-password', 
    '/auth/reset-password'
  ]
  
  // Pages that are accessible as public landing
  // Note: /courses and /discovery (now in browse/) might be public depending on logic, 
  // but let's assume browse pages are public or handled separately. 
  // For now, we list the root.
  const publicPages = ['/', '/courses', '/browse', '/browse/discovery']

  // 1. If user is authenticated and tries to access login/register (Keep landing page accessible)
  if (isAuthenticated.value && authPages.includes(to.path)) {
    return navigateTo('/dashboard', { replace: true })
  }

  // 2. If user is NOT authenticated and tries to access a page that has this middleware applied
  // and is NOT one of the public or auth pages.
  if (!isAuthenticated.value && !authPages.includes(to.path) && !publicPages.includes(to.path)) {
    return navigateTo('/auth/login', { replace: true })
  }
})