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(async (req) => {
  //   console.log("Middleware called", req.nextUrl.pathname);
  //   console.log("Logged in or not: ", req.auth);
  const isLoggedIn = !!req.auth;
  const { nextUrl } = req;

  const isApiAuthRoute = nextUrl.pathname.startsWith(apiAuthPrefix);
  const isPublicRoute = publicRoutes.includes(nextUrl.pathname);
  const isAuthRoute = authRoutes.includes(nextUrl.pathname);

  if (isApiAuthRoute) {
    return;
  }
  if (isAuthRoute) {
    if (isLoggedIn) {
      return Response.redirect(new URL(DEFAULT_LOGIN_REDIRECT, nextUrl));
    }
    return;
  }
  if (!isLoggedIn && !isPublicRoute) {
    let callbackUrl = nextUrl.pathname;
    if (nextUrl.search) {
      callbackUrl += nextUrl.search;
    }
    const encodedCallbackUrl = encodeURIComponent(callbackUrl);
    return Response.redirect(
      new URL(`/?callbackUrl=${encodedCallbackUrl}`, nextUrl)
    );
  }
  return;
});

export const config = {
  matcher: [
    // Skip Next.js internals and all static files, unless found in search params
    "/((?!_next|[^?]*\\.(?:html?|css|js(?!on)|jpe?g|webp|png|gif|svg|ttf|woff2?|ico|csv|docx?|xlsx?|zip|webmanifest)).*)",
    // Always run for API routes
    "/(api|trpc)(.*)",
  ],
};