Function middleware

frontend/src/middleware.ts:4–31

(request: NextRequest)

import { createSupabaseServerClient } from '@/utils/supabase-server';

export async function middleware(request: NextRequest) {
  const path = request.nextUrl.pathname;
  
  // Create Supabase client
  const { supabase, response } = createSupabaseServerClient(request);
  
  // Get the session
  const { data: { session } } = await supabase.auth.getSession();

  // Define protected and public paths
  const isAuthRoute = path === '/';
  const isProtectedRoute = path !== '/';

  // If on login page and authenticated, redirect to dashboard
  if (isAuthRoute && session) {
    const redirectResponse = NextResponse.redirect(new URL('/dashboard', request.url));
    // Set a header to indicate fresh login for client-side handling
    redirectResponse.headers.set('x-auth-redirect', 'true');
    return redirectResponse;
  }

  // If trying to access protected route without session, redirect to login
  if (isProtectedRoute && !session) {
    return NextResponse.redirect(new URL('/', request.url));
  }

  return response;
}

// Configure which routes should be processed by this middleware
export const config = {