/**
 * AtoCore capture hook for OpenClaw.
 *
 * Listens on message:received (buffer prompt) and message:sent (POST pair).
 * Fail-open: errors are caught silently.
 */

const BASE_URL = process.env.ATOCORE_BASE_URL || "http://dalidou:8100";
const MIN_LEN = 15;
const MAX_RESP = 50000;

let lastPrompt = null; // simple single-slot buffer

const atocoreCaptureHook = async (event) => {
  try {
    if (process.env.ATOCORE_CAPTURE_DISABLED === "1") return;

    if (event.type === "message" && event.action === "received") {
      const content = (event.context?.content || "").trim();
      if (content.length >= MIN_LEN && !content.startsWith("<")) {
        lastPrompt = { text: content, ts: Date.now() };
      }
      return;
    }

    if (event.type === "message" && event.action === "sent") {
      if (!event.context?.success) return;
      const response = (event.context?.content || "").trim();
      if (!response || !lastPrompt) return;

      // Discard stale prompts (>5 min old)
      if (Date.now() - lastPrompt.ts > 300000) {
        lastPrompt = null;
        return;
      }

      const prompt = lastPrompt.text;
      lastPrompt = null;

      const body = JSON.stringify({
        prompt,
        response: response.length > MAX_RESP
          ? response.slice(0, MAX_RESP) + "\n\n[truncated]"
          : response,
        client: "openclaw",
        session_id: event.sessionKey || "",
        project: "",
        reinforce: true,
      });

      fetch(BASE_URL.replace(/\/$/, "") + "/interactions", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body,
        signal: AbortSignal.timeout(10000),
      }).catch(() => {});
    }
  } catch {
    // fail-open: never crash the gateway
  }
};

export default atocoreCaptureHook;