auth.ts

import NextAuth from "next-auth";
import Credentials from "next-auth/providers/credentials";
import Google from "next-auth/providers/google";
import { PrismaAdapter } from "@auth/prisma-adapter";
import bcrypt from "bcryptjs";
import { prisma } from "@/lib/prisma";
import { authConfig } from "@/auth.config";

export const { handlers, auth, signIn, signOut } = NextAuth({
  ...authConfig,
  adapter: PrismaAdapter(prisma),
  // JWT sessions are required here — the Credentials provider can't use
  // database sessions in NextAuth. Google still gets its account row
  // stored via the adapter regardless.
  session: { strategy: "jwt" },
  providers: [
    Google({
      clientId: process.env.GOOGLE_CLIENT_ID!,
      clientSecret: process.env.GOOGLE_CLIENT_SECRET!,
    }),
    Credentials({
      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 },
        });

        // No user, or an OAuth-only account with no password set
        if (!user || !user.passwordHash) return null;

        const isValid = await bcrypt.compare(
          credentials.password as string,
          user.passwordHash
        );
        if (!isValid) return null;

        if (user.status === "SUSPENDED") {
          throw new Error("This account has been suspended.");
        }

        return {
          id: user.id,
          email: user.email,
          name: user.name,
          role: user.role,
        };
      },
    }),
  ],
});