finance_tool/auth.config.ts

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

export const authConfig = {
  pages: {
    signIn: '/login',
  },
  callbacks: {
    authorized({ auth, request: { nextUrl } }) {
      const isLoggedIn = !!auth?.user;
      const isOnLogin = nextUrl.pathname.startsWith('/login');
      const isPublicPath = nextUrl.pathname === '/' || nextUrl.pathname.startsWith('/api') || isOnLogin;
      
      if (isOnLogin) {
        if (isLoggedIn) return Response.redirect(new URL('/dashboard', nextUrl));
        return true;
      }
      
      if (!isLoggedIn && !isPublicPath) {
        return false; // Redirect unauthenticated users to login page
      }
      
      return true;
    },
  },
  providers: [], // Add providers with an empty array for now
} satisfies NextAuthConfig;