sweeper_video/include/tunnel_client.hpp

#pragma once
#include <atomic>
#include <string>
#include <thread>
#include <websocketpp/connection.hpp>

namespace websocketpp
{
namespace client
{
}
}  // namespace websocketpp

class TunnelClient
{
   public:
    TunnelClient(const std::string& vid, const std::string& server_ws_url, int local_http_port);
    void start();
    void stop();

   private:
    void run_loop();

    // 新增：流式处理 & 安全发送
    void handle_request_and_reply(const nlohmann::json& req);
    void send_text_safe(const std::string& s);
    void send_binary_safe(const void* data, size_t len);

   private:
    std::string vid_;
    std::string ws_url_;
    int local_port_ = 0;

    std::atomic<bool> running_{false};
    std::thread th_;

    // websocketpp 句柄
    websocketpp::connection_hdl hdl_;
    ws_client* client_ = nullptr;  // 指向 run_loop 的 client
};