auth.ts

import NextAuth, { DefaultSession } from 'next-auth';
import authConfig from './auth.config';
import { PrismaAdapter } from '@auth/prisma-adapter';
import prisma from './lib/prisma';
import { getUserById } from './data/user';
import { getTwoFactorConfirmationByUserId } from './data/two-factor-confirmation';
import { getAccountByUserId } from './data/account';
import { getCartByUserId } from './data/cart';
import { productSchema } from './components/types';

export const {
  handlers: { GET, POST },
  auth,
  signIn,
  signOut,
} = NextAuth({
  pages: {
    signIn: '/account/login',
    error: '/account/error',
  },
  callbacks: {
    async signIn({ user, account }) {
      if (account?.provider !== 'credentials') return true;

      const existingUser = await getUserById(user.id);

      if (!existingUser?.emailVerified) return false;

      if (existingUser.isTwoFactorEnabled) {
        const twoFactorConfirmation = await getTwoFactorConfirmationByUserId(
          existingUser.id
        );
        if (!twoFactorConfirmation) return false;

        await prisma.twoFactorConfirmation.delete({
          where: { id: twoFactorConfirmation.id },
        });
      }
      return true;
    },
    async session({ session, token }) {
      // console.log({
      //   sessionToken: token,
      // });
      if (token.sub && session.user) {
        session.user.id = token.sub;
      }
      if (token.role && session.user) {
        session.user.role = token.role as 'ADMIN' | 'USER';
      }
      if (session.user) {
        session.user.isTwoFactorEnabled = token.isTwoFactorEnabled as boolean;
      }
      if (session.user) {
        session.user.name = token.name;
        session.user.email = token.email;
        session.user.isOAuth = token.isOAuth as boolean;
        session.user.cart = token.cart as productSchema[];
      }

      return session;
    },
    async jwt({ token }) {
      if (!token.sub) {
        return token;
      }
      const existingUser = await getUserById(token.sub);

      if (!existingUser) {
        return token;
      }

      const existingAccount = await getAccountByUserId(existingUser.id);
      const existingCart = await getCartByUserId(existingUser.id);
      token.isOAuth = !!existingAccount;

      token.name = existingUser.name;
      token.email = existingUser.email;
      token.role = existingUser.role;
      token.isTwoFactorEnabled = existingUser.isTwoFactorEnabled;
      token.cart = existingCart;
      return token;
    },
  },
  events: {
    async linkAccount({ user }) {
      await prisma.user.update({
        where: { id: user.id },
        data: { emailVerified: new Date() },
      });
    },
  },
  adapter: PrismaAdapter(prisma),
  session: { strategy: 'jwt' },
  ...authConfig,
});