finance_tool/auth.ts

import NextAuth from 'next-auth';
import { authConfig } from './auth.config';
import CredentialsProvider from 'next-auth/providers/credentials';
import bcrypt from 'bcryptjs';
import { prisma } from './lib/prisma';

export const { handlers, auth, signIn, signOut } = NextAuth({
  ...authConfig,
  providers: [
    CredentialsProvider({
      name: 'Credentials',
      credentials: {
        email: { label: "Email", type: "email" },
        password: { label: "Password", type: "password" }
      },
      async authorize(credentials) {
        if (!credentials?.email || !credentials?.password) return null;
        
        const user = await prisma.user.findUnique({
          where: { email: credentials.email as string }
        });
        
        if (!user || !user.password) return null;
        
        const passwordsMatch = await bcrypt.compare(
          credentials.password as string,
          user.password
        );
        
        if (passwordsMatch) return user;
        
        return null;
      },
    }),
  ],
  callbacks: {
    async jwt({ token, user }) {
      if (user) {
        token.role = (user as any).role;
        token.id = user.id;
      }
      return token;
    },
    async session({ session, token }) {
      if (token) {
        (session.user as any).role = token.role;
        (session.user as any).id = token.id;
      }
      return session;
    },
  },
});