middleware.ts

import { NextResponse, type NextRequest } from "next/server";
import { updateSession } from "@/lib/supabase/middleware";

export async function middleware(request: NextRequest) {
  const { response, supabase } = await updateSession(request);

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

  if (request.nextUrl.pathname.startsWith("/dashboard")) {
    if (!user) {
      return NextResponse.redirect(new URL("/sign-in", request.url));
    }
  }

  if (["/sign-in", "/sign-up"].includes(request.nextUrl.pathname)) {
    if (user) {
      return NextResponse.redirect(new URL("/dashboard", request.url));
    }
  }

  return response;
}

export const config = {
  matcher: [
    /*
     * Match all request paths except for the ones starting with:
     * - _next/static (static files)
     * - _next/image (image optimization files)
     * - favicon.ico (favicon file)
     */
    "/((?!_next/static|_next/image|favicon.ico|.*\\.(?:svg|png|jpg|jpeg|gif|webp)$).*)",
  ],
};