middleware.ts

import { NextResponse } from 'next/server'
import type { NextRequest } from 'next/server'

export function middleware(request: NextRequest) {
  const authToken = request.cookies.get('auth-token')
  const isAuthenticated = !!authToken
  const isAuthPage = request.nextUrl.pathname.startsWith('/login')
  const isProtectedPage = request.nextUrl.pathname.startsWith('/dashboard')

  // Redirect to login if trying to access protected page without auth
  if (isProtectedPage && !isAuthenticated) {
    return NextResponse.redirect(new URL('/login', request.url))
  }

  // Redirect to dashboard if trying to access login page while authenticated
  if (isAuthPage && isAuthenticated) {
    return NextResponse.redirect(new URL('/dashboard', request.url))
  }

  return NextResponse.next()
}

export const config = {
  matcher: ['/dashboard/:path*', '/login']
}