import { NextResponse } from 'next/server';

type TunnelAction = 'status' | 'start' | 'stop';

function getModuleBaseUrl(): string {
  return (process.env.INTRANET_PENETRATION_MODULE_URL || '').trim().replace(/\/+$/, '');
}

export async function proxyIntranetModule(action: TunnelAction): Promise<NextResponse | null> {
  const baseUrl = getModuleBaseUrl();
  if (!baseUrl) return null;

  const method = action === 'status' ? 'GET' : 'POST';
  const response = await fetch(`${baseUrl}/${action}`, { method });
  const data = await response.json().catch(() => ({
    error: '内网穿透模块返回数据异常',
  }));

  return NextResponse.json(data, { status: response.status });
}