import { randomUUID } from "node:crypto";
import { hostname } from "node:os";
const INGEST_URL = process.env.AGENTMON_INGEST_URL || "http://192.168.122.1:8080";
const VM_NAME = process.env.AGENTMON_VM_NAME || hostname();
const BATCH_SIZE = 10;
const FLUSH_MS = 2e3;
const FETCH_TIMEOUT_MS = 500;
let buffer = [];
let flushTimer = null;
let isFlushing = false;
const activeRuns = /* @__PURE__ */ new Map();
function isRecord(value) {
  return value !== null && typeof value === "object" && !Array.isArray(value);
}
function pickString(...values) {
  for (const value of values) {
    if (typeof value === "string" && value.trim() !== "") {
      return value;
    }
  }
  return void 0;
}
function pickNumber(...values) {
  for (const value of values) {
    if (typeof value === "number" && Number.isFinite(value)) {
      return value;
    }
  }
  return void 0;
}
function truncate(value, limit) {
  if (value === void 0 || value === null) {
    return void 0;
  }
  const text = typeof value === "string" ? value : safeJSONStringify(value);
  if (!text) {
    return void 0;
  }
  if (text.length <= limit) {
    return text;
  }
  return text.slice(0, limit) + "...";
}
function safeJSONStringify(value) {
  try {
    return JSON.stringify(value);
  } catch {
    return String(value);
  }
}
function getEventName(input) {
  const direct = pickString(input.name, input.event);
  if (direct) {
    return direct;
  }
  if (typeof input.type === "string" && input.type.includes(":")) {
    return input.type;
  }
  if (typeof input.type === "string" && typeof input.action === "string") {
    return `${input.type}:${input.action}`;
  }
  if (typeof input.type === "string") {
    return input.type;
  }
  return "";
}
function getContext(input) {
  return isRecord(input.context) ? input.context : {};
}
function getSessionKey(input, context) {
  return pickString(
    input.sessionKey,
    context.sessionKey,
    context.session_id,
    input.session_id,
    isRecord(input.session) ? input.session.key : void 0,
    isRecord(context.session) ? context.session.key : void 0
  );
}
function buildEnvelope(type, sessionKey, opts = {}) {
  const correlation = {};
  if (sessionKey) {
    correlation.session_id = sessionKey;
  }
  if (opts.runId) {
    correlation.run_id = opts.runId;
  }
  if (opts.spanId) {
    correlation.span_id = opts.spanId;
  }
  if (opts.parentSpanId) {
    correlation.parent_span_id = opts.parentSpanId;
  }
  const envelope = {
    schema: { name: "agentmon.event", version: 1 },
    event: {
      id: randomUUID(),
      type,
      ts: (/* @__PURE__ */ new Date()).toISOString(),
      source: {
        framework: "openclaw",
        client_id: VM_NAME,
        host: VM_NAME
      }
    }
  };
  if (Object.keys(correlation).length > 0) {
    envelope.correlation = correlation;
  }
  if (opts.attributes && Object.keys(opts.attributes).length > 0) {
    envelope.attributes = opts.attributes;
  }
  if (opts.payload && Object.keys(opts.payload).length > 0) {
    envelope.payload = opts.payload;
  }
  return envelope;
}
function scheduleFlush() {
  if (!flushTimer) {
    flushTimer = setTimeout(() => {
      void flush();
    }, FLUSH_MS);
  }
}
function enqueue(event) {
  buffer.push(event);
  if (buffer.length >= BATCH_SIZE) {
    void flush();
  } else {
    scheduleFlush();
  }
}
async function postBatch(batch) {
  const controller = new AbortController();
  const timeout = setTimeout(() => controller.abort(), FETCH_TIMEOUT_MS);
  try {
    await fetch(`${INGEST_URL}/v1/events`, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(batch),
      signal: controller.signal
    });
  } finally {
    clearTimeout(timeout);
  }
}
async function flush() {
  if (flushTimer) {
    clearTimeout(flushTimer);
    flushTimer = null;
  }
  if (isFlushing || buffer.length === 0) {
    return;
  }
  isFlushing = true;
  const batch = buffer.splice(0, BATCH_SIZE);
  try {
    await postBatch(batch);
  } catch {
    console.debug(`[agentmon] failed to flush ${batch.length} events`);
  } finally {
    isFlushing = false;
    if (buffer.length > 0) {
      if (buffer.length >= BATCH_SIZE) {
        void flush();
      } else {
        scheduleFlush();
      }
    }
  }
}
function emitError(sessionKey, runId, spanId, errorValue) {
  if (errorValue === void 0 || errorValue === null || errorValue === false) {
    return;
  }
  const errorRecord = isRecord(errorValue) ? errorValue : {};
  const message = pickString(errorRecord.message, errorRecord.error, errorValue) || "unknown";
  const errType = pickString(errorRecord.type, errorRecord.code) || "openclaw";
  enqueue(buildEnvelope("error", sessionKey, {
    runId,
    spanId,
    payload: {
      error: {
        type: errType,
        message
      }
    }
  }));
}
function buildRunPayload(context, success) {
  const payload = {
    status: success ? "success" : "error"
  };
  const duration = pickNumber(context.duration_ms, context.durationMs, context.elapsed_ms);
  if (duration !== void 0) {
    payload.duration_ms = duration;
  }
  const usage = isRecord(context.usage) ? context.usage : void 0;
  if (usage) {
    payload.usage = usage;
  }
  const errorMessage = pickString(context.error, isRecord(context.result) ? context.result.error : void 0);
  if (errorMessage) {
    payload.error = errorMessage;
  }
  return payload;
}
const handler = async (rawEvent) => {
  if (!isRecord(rawEvent)) {
    return;
  }
  const context = getContext(rawEvent);
  const eventName = getEventName(rawEvent);
  const sessionKey = getSessionKey(rawEvent, context);
  try {
    if (eventName === "command:new") {
      enqueue(buildEnvelope("session.start", sessionKey));
      return;
    }
    if (eventName === "command:stop") {
      enqueue(buildEnvelope("session.end", sessionKey));
      if (sessionKey) {
        activeRuns.delete(sessionKey);
      }
      return;
    }
    if (eventName === "command:reset") {
      enqueue(buildEnvelope("session.end", sessionKey));
      enqueue(buildEnvelope("session.start", sessionKey));
      if (sessionKey) {
        activeRuns.delete(sessionKey);
      }
      return;
    }
    if (eventName === "agent:bootstrap") {
      const existingRunId = sessionKey ? activeRuns.get(sessionKey) : void 0;
      if (!existingRunId) {
        const runId = randomUUID();
        if (sessionKey) {
          activeRuns.set(sessionKey, runId);
        }
        enqueue(buildEnvelope("run.start", sessionKey, {
          runId,
          attributes: {
            agent_id: pickString(context.agentId),
            run_kind: "embedded"
          }
        }));
      }
      return;
    }
    if (eventName === "message:received") {
      const runId = randomUUID();
      if (sessionKey) {
        activeRuns.set(sessionKey, runId);
      }
      enqueue(buildEnvelope("run.start", sessionKey, {
        runId,
        attributes: {
          channel: pickString(context.channelId, context.channel_id),
          from: pickString(context.from, context.sender)
        },
        payload: {
          message_preview: truncate(
            pickString(context.content, context.message, context.text) || context.input,
            200
          )
        }
      }));
      return;
    }
    if (eventName === "message:sent") {
      const runId = sessionKey ? activeRuns.get(sessionKey) : void 0;
      const success = context.success !== false && !context.error;
      enqueue(buildEnvelope("run.end", sessionKey, {
        runId,
        attributes: {
          channel: pickString(context.channelId, context.channel_id),
          to: pickString(context.to, context.recipient)
        },
        payload: buildRunPayload(context, success)
      }));
      if (!success) {
        emitError(sessionKey, runId, void 0, context.error);
      }
      return;
    }
  } catch {
    console.debug("[agentmon] handler error");
  }
};
var handler_default = handler;
export {
  handler_default as default
};