auth.ts

import NextAuth from 'next-auth';
import Credentials from 'next-auth/providers/credentials';
import { authConfig } from './auth.config';
import { z } from 'zod';
import { sql } from '@vercel/postgres';
import type { User } from '@/app/lib/definitions';
import bcrypt from 'bcryptjs';
 
async function getUser(email: string): Promise<User | undefined> {
  try {
    const user = await sql<User>`SELECT * FROM users WHERE email=${email}`;
    return user.rows[0];
  } catch (error) {
    console.error('Failed to fetch user:', error);
    throw new Error('Failed to fetch user.');
  }
}
 

const nextAuth = NextAuth({
  ...authConfig,
  providers: [
    Credentials({
      credentials: {
        email: {},
        password: {},
      },
      async authorize(credentials) {
        // console.log('credentials', credentials);
        const email = credentials.email as string;
        const password = credentials.password as string;

        const user = await getUser(email);
        // console.log('user', user);
        if (!user) {
          return null;
        }
        const passwordMatch = await bcrypt.compare(password, user.password);
        // console.log('passwordMatch', passwordMatch);

        if (passwordMatch) {
          console.log('logged in');
          return user;
        }

        console.log('invalid credentials');
        return null;
      },
    }),
  ],
});
 
export const { handlers, signIn, signOut, auth } = nextAuth;


// export const { auth, signIn, signOut } = NextAuth({
//   ...authConfig,
//   providers: [
//     Credentials({
//       async authorize(credentials) {
//         const parsedCredentials = z
//           .object({ email: z.string().email(), password: z.string().min(6) })
//           .safeParse(credentials);
 
//         if (parsedCredentials.success) {
//           const { email, password } = parsedCredentials.data;
//           const user = await getUser(email);
//           if (!user) return null;
//           const passwordsMatch = await bcrypt.compare(password, user.password);

//           if (passwordsMatch) return user;
//         }

//         console.log('Invalid credentials');    
//         return null;
//       },
//     }),
//   ],
// });