auth.config.ts

import type { NextAuthConfig } from 'next-auth';
import Credentials from 'next-auth/providers/credentials';
import bcrypt from 'bcryptjs';

import { LoginSchema } from '@/schemas';
import { getUserByEmail } from '@/data/user';

export default {
    providers: [Credentials({
        async authorize(credentials) {
            const validatedFields = LoginSchema.safeParse(credentials);

            if (validatedFields.success) {
                const { email, password } = validatedFields.data;
                const user = await getUserByEmail(email);
                if (!user || !user.password) return null;
                const passwordsMatch = await bcrypt.compare(
                    password,
                    user.password,
                );
                if (passwordsMatch) return user;
            }
            return null;
        }
    })],
} satisfies NextAuthConfig;