auth.config.ts

import type { NextAuthConfig } from 'next-auth';

export const authConfig = {
  /**
   * You can use the pages option to specify the route for custom sign-in,
   * sign-out, and error pages. This is not required, but by adding signIn: '/login'
   * into our pages option, the user will be redirected to our custom login page,
   * rather than the NextAuth.js default page.
   */
  pages: {
    signIn: '/login',
  },
  callbacks: {
    authorized({ auth, request: { nextUrl } }) {
      const isLoggedIn = !!auth?.user;
      const isOnDashboard = nextUrl.pathname.startsWith('/dashboard');
      if (isOnDashboard) {
        if (isLoggedIn) return true;
        return false; // Redirect unauthenticated users to login page
      } else if (isLoggedIn) {
        return Response.redirect(new URL('/dashboard', nextUrl));
      }
      return true;
    },
  },
  providers: [], // Add providers with an empty array for now
} satisfies NextAuthConfig;