// 不自动运行：启动服务 node server.ts，然后 curl -N -X POST localhost:3000/chat -H 'content-type: application/json' -d '{"question":"退货"}'
import { createApp } from "./app.ts";

async function* fakeLLM(q: string, signal: AbortSignal) {
  for (const t of ["关于", `“${q}”`, "：", "签收 7 天内", "可以申请退货。"]) {
    if (signal.aborted) return;
    await new Promise((r) => setTimeout(r, 200));
    yield t;
  }
}

const app = createApp({
  askLLM: fakeLLM,
  findOrder: async (id) => (id === "A001" ? { id, status: "paid" } : null),
});
const port = Number(process.env.PORT ?? 3000);
app.listen(port, () => console.log(`listening on http://127.0.0.1:${port}`));