auth.ts

import type {
  GetServerSidePropsContext,
  NextApiRequest,
  NextApiResponse,
} from 'next';
import type { NextAuthOptions } from 'next-auth';
import { getServerSession } from 'next-auth';
import AzureADProvider from 'next-auth/providers/azure-ad';

export const authConfig = {
  pages: {
    signIn: '/login',
    error: '/error',
  },
  providers: [
    AzureADProvider({
      clientId: process.env.AZURE_AD_CLIENT_ID!,
      clientSecret: process.env.AZURE_AD_CLIENT_SECRET!,
      tenantId: process.env.AZURE_AD_TENANT_ID,
    }),
  ],
} satisfies NextAuthOptions;

export function auth(
  ...args:
    | [GetServerSidePropsContext['req'], GetServerSidePropsContext['res']]
    | [NextApiRequest, NextApiResponse]
    | []
) {
  return getServerSession(...args, authConfig);
}