import { NextRequest, NextResponse } from 'next/server';
import { withDb } from '@/lib/api-handler';

async function handler(_request: NextRequest) {
  const clientId = process.env.GOOGLE_CLIENT_ID;

  if (!clientId) {
    return NextResponse.json({ enabled: false });
  }

  const redirectUri = `${process.env.NEXT_PUBLIC_BASE_URL || ''}/api/auth/google/callback`;

  const url = new URL('https://accounts.google.com/o/oauth2/v2/auth');
  url.searchParams.set('client_id', clientId);
  url.searchParams.set('redirect_uri', redirectUri);
  url.searchParams.set('response_type', 'code');
  url.searchParams.set('scope', 'openid email profile');
  url.searchParams.set('access_type', 'offline');
  url.searchParams.set('prompt', 'consent');

  return NextResponse.json({
    enabled: true,
    url: url.toString(),
  });
}

export const GET = withDb(handler);