middleware.ts

import authConfig from "./auth.config";
import NextAuth from "next-auth";
import {
    DEFAULT_LOGIN_REDIRECT,
    apiAuthPrefix,
    authRoutes,
    publicRoutes
} from "@/routes"
const { auth } = NextAuth(authConfig);

export default auth((req) => {
  const { nextUrl } = req;
  const isLoggedIn = !!req.auth;
  const isApiAuthRoute = nextUrl.pathname.startsWith(apiAuthPrefix);
  const isPublicRoute = publicRoutes.includes(nextUrl.pathname);
  const isAuthRoute = authRoutes.includes(nextUrl.pathname);
  console.log("Is LoggedIN : " , isLoggedIn);

  if(isApiAuthRoute){
    return null;
  }

  if(isAuthRoute){
    if(isLoggedIn){
        return Response.redirect(new URL(DEFAULT_LOGIN_REDIRECT , nextUrl));
    }
    return null;
  }

  if(!isLoggedIn && !isPublicRoute){
    return Response.redirect(new URL("/auth/login", nextUrl));
  }
  
  return null;
})

// Optionally, don't invoke Middleware on some paths
// Read more: https://nextjs.org/docs/app/building-your-application/routing/middleware#matcher
export const config = {
  matcher: ["/((?!.+\\.[\\w]+$|_next).*)", "/", "/(api|trpc)(.*)"],
}