middleware.ts

import { NextResponse, type NextRequest } from "next/server";
import { createServerClient } from "@supabase/ssr";

export async function middleware(request: NextRequest) {
  let response = NextResponse.next({
    request: {
      headers: request.headers
    }
  });

  const supabase = createServerClient(
    process.env.NEXT_PUBLIC_SUPABASE_URL!,
    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
    {
      cookies: {
        get(name: string) {
          return request.cookies.get(name)?.value;
        },
        set(name: string, value: string, options: any) {
          response.cookies.set({ name, value, ...options });
        },
        remove(name: string, options: any) {
          response.cookies.set({ name, value: "", ...options });
        }
      }
    }
  );

  const {
    data: { user }
  } = await supabase.auth.getUser();

  const isAuthRoute = request.nextUrl.pathname.startsWith("/login");
  const isProtected =
    request.nextUrl.pathname.startsWith("/client") ||
    request.nextUrl.pathname.startsWith("/admin");

  if (!user && isProtected) {
    return NextResponse.redirect(new URL("/login", request.url));
  }

  if (user && isAuthRoute) {
    return NextResponse.redirect(new URL("/client/dashboard", request.url));
  }

  return response;
}

export const config = {
  matcher: ["/login", "/client/:path*", "/admin/:path*"]
};