auth.config.ts

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

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

export default {
  providers: [
    Google,
    Github,
    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;