nanochat/services/frontend/middleware.ts

import { auth } from '@/auth';
import { NextResponse } from 'next/server';

export default auth((req) => {
  const { nextUrl } = req;
  const isAuthed = !!req.auth;
  const isChatRoute = nextUrl.pathname.startsWith('/chat');

  if (isChatRoute && !isAuthed) {
    const loginUrl = new URL('/login', nextUrl);
    loginUrl.searchParams.set('callbackUrl', nextUrl.pathname);
    return NextResponse.redirect(loginUrl);
  }
  return NextResponse.next();
});

export const config = {
  matcher: ['/chat/:path*'],
};