#!/usr/bin/env node
/**
 * Self-check for the standalone original-UI web host. Run while ./start.sh is up.
 *   node verify.mjs           served assets + HTTP surface
 *   node verify.mjs --deep    also drive a real app-server RPC through the UI host
 *
 * The orchestrator/API layer is intentionally not part of this stack; nothing
 * here probes port 8899. Everything the UI needs is served by host/web-server.mjs
 * on UI_PORT, including the local JSON-RPC passthrough and the mock backends.
 */
import http from "node:http";

const uiPort = Number(process.env.UI_PORT || 8095);
const deep = process.argv.includes("--deep");

function request(path, { method = "GET", headers = {}, body = null, timeout = 8000 } = {}) {
  return new Promise((resolve) => {
    const req = http.request({ host: "127.0.0.1", port: uiPort, path, method, headers }, (res) => {
      const chunks = [];
      res.on("data", (c) => chunks.push(c));
      res.on("end", () => resolve({
        status: res.statusCode,
        body: Buffer.concat(chunks).toString("utf8"),
      }));
    });
    req.setTimeout(timeout, () => req.destroy(new Error("timeout")));
    req.on("error", (e) => resolve({ status: 0, body: String(e.message) }));
    if (body) req.write(body);
    req.end();
  });
}

function json(r) {
  try { return JSON.parse(r.body); } catch { return null; }
}

const results = [];
async function check(name, fn) {
  let out;
  try {
    out = await fn();
  } catch (e) {
    out = { ok: false, detail: String(e.message) };
  }
  results.push({ name, ...out });
  console.log(`${out.ok ? "PASS" : "FAIL"}  ${name}  ${out.detail ?? ""}`);
}

const post = (path, payload, timeout = 8000) => request(path, {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify(payload),
  timeout,
});

await check("UI  GET / 注入两个宿主脚本", async () => {
  const r = await request("/");
  const ok = r.status === 200
    && r.body.includes("/__codex_local_host.js")
    && r.body.includes("/__codex_shim.js");
  return { ok, detail: `HTTP ${r.status}, ${r.body.length}B` };
});

await check("UI  GET /__codex_local_host.js", async () => {
  const r = await request("/__codex_local_host.js");
  return {
    ok: r.status === 200 && r.body.includes("__codexLocalHost"),
    detail: `HTTP ${r.status}, ${r.body.length}B`,
  };
});

await check("UI  GET /__codex_shim.js", async () => {
  const r = await request("/__codex_shim.js");
  return { ok: r.status === 200 && r.body.length > 1000, detail: `HTTP ${r.status}, ${r.body.length}B` };
});

await check("UI  响应层补丁命中 connect-app-host", async () => {
  const r = await request("/assets/connect-app-host-90a50ca9e4b4.js");
  return {
    ok: r.status === 200 && r.body.includes("__codexLocalHost"),
    detail: `HTTP ${r.status}, ${r.body.length}B`,
  };
});

await check("UI  原版入口 chunk 可加载", async () => {
  const r = await request("/assets/index-fcd3fcef6840.js");
  return { ok: r.status === 200 && r.body.length > 100, detail: `HTTP ${r.status}, ${r.body.length}B` };
});

await check("UI  GET /ces/v1/rgstr 遥测丢弃", async () => {
  const r = await request("/ces/v1/rgstr");
  return { ok: r.status === 202, detail: `HTTP ${r.status}` };
});

await check("UI  GET /__codex_rpc 拒绝非 POST", async () => {
  const r = await request("/__codex_rpc");
  return { ok: r.status === 405, detail: `HTTP ${r.status}` };
});

await check("UI  POST /__codex_projectless 工作区根", async () => {
  const r = await post("/__codex_projectless", { op: "readWorkspaceRoot" });
  const j = json(r);
  return {
    ok: r.status === 200 && typeof j?.result?.workspaceRoot === "string",
    detail: `HTTP ${r.status}, ${j?.result?.workspaceRoot ?? r.body.slice(0, 80)}`,
  };
});

await check("UI  POST /__codex_statsig_bootstrap 空配置", async () => {
  const r = await post("/__codex_statsig_bootstrap", { stable_id: "verify" });
  const j = json(r);
  const gates = json({ body: j?.statsigPayload ?? "" })?.feature_gates;
  return {
    ok: r.status === 200 && gates && Object.keys(gates).length === 0,
    detail: `HTTP ${r.status}, ${r.body.length}B`,
  };
});

await check("UI  GET /mock/wham/tasks/list 云端替身", async () => {
  const r = await request("/mock/wham/tasks/list");
  const j = json(r);
  return {
    ok: r.status === 200 && Array.isArray(j?.items) && j.items.length === 0,
    detail: `HTTP ${r.status}, ${r.body.trim()}`,
  };
});

await check("UI  GET /__codex_mocklog 诊断日志", async () => {
  const r = await request("/__codex_mocklog");
  const j = json(r);
  return {
    ok: r.status === 200 && Array.isArray(j?.requests),
    detail: `HTTP ${r.status}, ${j?.requests?.length ?? 0} 条`,
  };
});

if (deep) {
  await check("UI  POST /__codex_rpc -> 真实 app-server thread/list", async () => {
    const r = await post("/__codex_rpc", { method: "thread/list", params: { limit: 1 } }, 45000);
    const j = json(r);
    const ok = r.status === 200 && j && !j.error && j.result != null;
    return { ok: !!ok, detail: `HTTP ${r.status}, ${r.body.slice(0, 140)}` };
  });

  await check("UI  POST /__codex_rpc -> config/read 含 relay 覆盖", async () => {
    const r = await post("/__codex_rpc", { method: "config/read", params: {} }, 45000);
    const j = json(r);
    const model = j?.result?.config?.model;
    return {
      ok: r.status === 200 && typeof model === "string" && model.length > 0,
      detail: `HTTP ${r.status}, model=${model ?? "n/a"}`,
    };
  });
}

const failed = results.filter((r) => !r.ok);
console.log(`\n${results.length - failed.length}/${results.length} passed`);
console.log("orchestrator 已移除；本栈只有 :8095 一个服务，无 :8899 API。");
if (!deep) console.log("shallow run: pass --deep to exercise the real app-server RPC");
process.exit(failed.length ? 1 : 0);