import { NextAuthOptions } from "next-auth";
import GoogleProvider from "next-auth/providers/google";
import { PrismaAdapter } from "@next-auth/prisma-adapter";
import { prisma } from "@/lib/prisma";

export const authOptions: NextAuthOptions = {
  adapter: PrismaAdapter(prisma),
  session: {
    strategy: "database",
  },
  providers: [
    GoogleProvider({
      clientId: process.env.GOOGLE_CLIENT_ID!,
      clientSecret: process.env.GOOGLE_CLIENT_SECRET!,
      authorization: {
        params: {
          scope: "openid email profile https://www.googleapis.com/auth/drive.file",
          prompt: "consent",
          access_type: "offline",
          response_type: "code",
        },
      },
    }),
  ],
  callbacks: {
    async session({ session, user }) {
      if (session?.user && user) {
        session.user.id = user.id;
        session.user.role = user.role || 'EMPLOYEE';
      }
      return session;
    },
  },
  events: {
    async createUser({ user }) {
      const userCount = await prisma.user.count();
      if (userCount === 1) {
        await prisma.user.update({
          where: { id: user.id },
          data: { role: 'ADMIN' },
        });
      }
    },
  },
};