// 修复：使用正确的 Gateway API 发送消息

// 转发消息到 OpenClaw - 使用 chat.send 方法
async forwardMessageToOpenClaw(frame) {
  if (!openclawConnection || !openclawConnection.isConnected) {
    console.log('[WeCom] OpenClaw not connected, skipping forward');
    return;
  }

  const body = frame.body;
  const chatId = body.chatid || body.from.userid;
  const chatType = body.chattype === 'group' ? 'group' : 'direct';
  const messageId = body.msgid;
  const reqId = frame.headers.req_id;

  reqIdMap.set(chatId, reqId);

  // 提取文本
  let text = '';
  if (body.text?.content) {
    text = body.text.content;
  } else if (body.mixed?.msg_item) {
    for (const item of body.mixed.msg_item) {
      if (item.msgtype === 'text' && item.text?.content) {
        text += item.text.content + '\n';
      }
    }
  } else if (body.voice?.content) {
    text = body.voice.content;
  }

  if (body.chattype === 'group') {
    text = text.replace(/@\S+/g, '').trim();
  }

  // 构建 sessionKey（格式：wecom:chatType:chatId）
  const sessionKey = `wecom:${chatType}:${chatId}`;

  // 处理媒体文件
  const attachments = [];
  
  // 下载图片
  if (body.image?.url) {
    try {
      console.log('[WeCom] Downloading image:', body.image.url);
      const { buffer, filename } = await downloadFile(body.image.url, body.image.aeskey);
      const saved = await saveMediaFile(buffer, filename, 'inbound');
      attachments.push({
        type: 'image',
        path: saved.path,
        contentType: saved.contentType
      });
      console.log('[WeCom] Image saved:', saved.path);
    } catch (error) {
      console.error('[WeCom] Failed to download image:', error.message);
    }
  }

  // 下载文件
  if (body.file?.url) {
    try {
      console.log('[WeCom] Downloading file:', body.file.url);
      const { buffer, filename } = await downloadFile(body.file.url, body.file.aeskey);
      const saved = await saveMediaFile(buffer, filename, 'inbound');
      attachments.push({
        type: 'file',
        path: saved.path,
        contentType: saved.contentType
      });
      console.log('[WeCom] File saved:', saved.path);
    } catch (error) {
      console.error('[WeCom] Failed to download file:', error.message);
    }
  }

  // 使用 chat.send 方法发送消息到 OpenClaw
  const chatSendMessage = {
    type: 'req',
    id: this.nextId(),
    method: 'chat.send',
    params: {
      sessionKey: sessionKey,
      message: text,
      attachments: attachments.length > 0 ? attachments : undefined,
      deliver: true,  // 立即投递到 AI
      idempotencyKey: messageId  // 使用消息 ID 作为幂等键
    }
  };

  console.log('[OpenClaw] Sending via chat.send:', sessionKey);
  openclawConnection.send(JSON.stringify(chatSendMessage));
  console.log(`[Forward] WeCom -> OpenClaw: ${messageId}`);
}