/** E2E 临时接收器:18790,打印签名/Authorization 校验结果 */
const KEY = "wmh_e2e_key_12345";
Bun.serve({
  port: 18790,
  async fetch(req) {
    if (req.method === "GET" && new URL(req.url).pathname === "/__stats") {
      return Response.json({ ok: true, note: "see stdout for deliveries" });
    }
    if (req.method !== "POST" || new URL(req.url).pathname !== "/hook") {
      return Response.json({ error: "not found" }, { status: 404 });
    }
    const body = await req.text();
    const ts = req.headers.get("X-WmailHub-Timestamp") ?? "";
    const sig = req.headers.get("X-WmailHub-Signature") ?? "";
    const { hmacSha256Hex } = await import("../../shared/src/index.ts");
    const expect = await hmacSha256Hex(KEY, `${ts}.${body}`);
    const payload = JSON.parse(body) as Record<string, unknown>;
    console.log(
      JSON.stringify({
        got: "webhook",
        auth: req.headers.get("Authorization"),
        signature_valid: sig === expect,
        event: payload.event,
        subject: payload.subject,
        mailbox: payload.mailbox,
        custom_header: req.headers.get("X-Custom"),
      }),
    );
    return Response.json({ ok: true });
  },
});
console.log("receiver on :18790");