/**
 * AnswerShaper M2M Edge Worker (Cloudflare Workers / Vercel Edge)
 * 拦截 LLM 爬虫 User-Agent 并返回优化后的 Markdown 载荷。
 */
const AI_USER_AGENTS = [
  'OAI-SearchBot',
  'GPTBot',
  'PerplexityBot',
  'Claude-Web',
  'Applebot-Extended',
  'Google-Extended'
];
export default {
  async fetch(request: Request, env: any, ctx: any): Promise<Response> {
    const userAgent = request.headers.get('user-agent') || '';
    const isAiCrawler = AI_USER_AGENTS.some(bot => userAgent.includes(bot));
    const url = new URL(request.url);
ARCHITECTURE / FLUX D'EXÉCUTION
// 将常规流量直接透传至源站边缘缓存
if (!isAiCrawler &amp;&amp; !url.pathname.endsWith(&#39;.md&#39;)) {
  return fetch(request);
}

const cacheKey = new Request(`${url.origin}/m2m-cache${url.pathname}`, request);
const cache = caches.default;
let response = await cache.match(cacheKey);

if (response) {
  return response;
}

// 获取上游原始内容
const originResponse = await fetch(request);
const html = await originResponse.text();

// 执行 AST 转换，生成纯净、高密度的 Markdown 内容
const cleanMarkdown = transformHtmlToLlmMarkdown(html);

response = new Response(cleanMarkdown, {
  status: 200,
  headers: {
    &#39;Content-Type&#39;: &#39;text/markdown; charset=utf-8&#39;,
    &#39;X-Robots-Tag&#39;: &#39;all&#39;,
    &#39;X-AEO-Engine&#39;: &#39;AnswerShaper-M2M-v4.2&#39;,
    &#39;Cache-Control&#39;: &#39;public, max-age=3600, s-maxage=86400&#39;,
    &#39;Vary&#39;: &#39;User-Agent&#39;
  }
});

ctx.waitUntil(cache.put(cacheKey, response.clone()));
return response;

  }
};
function transformHtmlToLlmMarkdown(htmlContent: string): string {
  // 剥离 script 标签、style 样式、SVG 路径、base64 资源与导航栏
  // 提取 <main> 标签内容，将标题、代码块与 JSON-LD 转换为语义化 Markdown
  return # Synthesized Machine Payload\n\n${htmlContent.replace(/&lt;[^&gt;]*&gt;?/gm, &#39;&#39;)};
}

+-----------------------------------------------------------------------------------+
|                            S2S 财务营收归因数据链路                                |
+-----------------------------------------------------------------------------------+
                                          │
                                [ ChatGPT 搜索响应结果 ]
                     引用链接: example.com/pricing?as_click_id=enc_7f9a2
                                          │
                                          ▼
                             [ 企业边缘网关 / 反向代理 ]
                                          │
             ┌────────────────────────────┴────────────────────────────┐
             ▼                                                         ▼
       [ 会话创建 ]                                              [ 服务端日志 ]
  在会话状态中存储 `as_click_id`                                回传至 AnswerShaper S2S 中心
  (完全无需第三方 Cookie)                                       载荷: { bot: "OAI-Search", cid: "..." }
             │                                                         │
             ▼                                                         ▼
     [ 用户升级为付费版 ]                                      [ 转化事件录入 ]
 Stripe Checkout / Shopify Webhook                          Stripe Webhook: `checkout.session.completed`
 元数据: { as_click_id: "enc_7f9a2" }                        载荷: { amount: $12,000, arr: true }
             │                                                         │
             └────────────────────────────┬────────────────────────────┘
                                          │
                                          ▼
                              [ 确定性 ROI 财务对账 ]
                       "提示词: '企业级 SSO 配置' -> $12k ARR"

import Stripe from 'stripe';
import { AnswerShaperAnalytics } from '@answershaper/sdk-node';
const stripe = new Stripe(process.env.STRIPE_SECRET_KEY!);
const aeo = new AnswerShaperAnalytics({ apiKey: process.env.ANSWERSHAPER_API_KEY! });
export async function handleStripeWebhook(event: Stripe.Event) {
  if (event.type === 'checkout.session.completed') {
    const session = event.data.object as Stripe.Checkout.Session;
    const asClickId = session.metadata?.as_click_id;
ARCHITECTURE / FLUX D'EXÉCUTION
if (asClickId) {
  // 向 AnswerShaper 发送 S2S 转化事件
  await aeo.trackConversion({
    clickId: asClickId,
    revenueUsd: (session.amount_total || 0) / 100,
    customerId: session.customer as string,
    currency: session.currency || 'usd',
    subscriptionType: session.mode === 'subscription' ? 'recurring' : 'one_time',
    timestamp: new Date().toISOString()
  });
}

  }
}