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 'bcrypt';

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.');
  }
}

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);
          console.log('User:', user);
          if (!user) return null;
          const passwordsMatch = await bcrypt.compare(password, user.password);
          console.log(
            'Passwords match:',
            passwordsMatch,
            password,
            user.password,
          );
          if (passwordsMatch) return user;
        }
        console.log('Invalid credentials');

        return null;
      },
    }),
  ],
  callbacks: {
    async jwt({ token, user }) {
      if (user) {
        console.log('JWT User:', user);
        token.role = user.role;
        token.phone_number = user.phone_number;
      }
      return token;
    },
    async session({ session, token }) {
      console.log('JWT User:', token);
      session.user.role = token.role;
      session.user.phone_number = token.phone_number;
      return session;
    },
  },
});