// lib/auth.ts
'use server';

import { getServerSession } from 'next-auth';
import { authOptions } from './auth-options';
import { prisma } from './prisma';

type SessionUser = {
  id?: string;
  email?: string | null;
  name?: string | null;
};

export async function getCurrentUserId(): Promise<string | null> {
  const session = await getServerSession(authOptions);
  const user = session?.user as SessionUser | undefined;

  // 1) ID direkt aus dem Token
  if (user?.id) {
    return user.id;
  }

  // 2) Fallback über E-Mail aus der Session
  if (user?.email) {
    const dbUser = await prisma.user.findUnique({
      where: { email: user.email },
      select: { id: true },
    });
    if (dbUser) return dbUser.id;
  }

  // 3) keine Session -> kein User
  return null;
}

export async function getCurrentUser() {
  const id = await getCurrentUserId();
  if (!id) return null;

  return prisma.user.findUnique({
    where: { id },
    include: {
      roles: {
        include: {
          role: true,
        },
      },
    },
  });
}