#ifndef _MSGHANDLER_HPP_
#define _MSGHANDLER_HPP_

#include <queue>
#include <mutex>
#include <vector>
#include <map>

#include "WeighingDDSType.hpp"

struct iomap_t
{   //name, (port, value)
    std::map<std::string, std::pair<uint8_t, uint8_t>> omap;
    std::map<std::string, std::pair<uint8_t, uint8_t>> imap;
};

class MsgHandler
{
public:
    int fd;
    std::string device;
    uint8_t device_id;
    iomap_t iomap;

    MsgHandler();
    ~MsgHandler() = default;

    virtual bool OpenPort(const std::string& port, const std::string& baudrate);
    virtual int SendDeviceMsg(std::vector<uint8_t>& data);
    virtual int RecvDeviceMsg(std::vector<uint8_t>& data, int timeoutMs);
    int SendMsg(const void *buf, size_t len);
    int RecvMsg(void *buf, size_t len, int timeoutMs);
    bool isOpen() const {
        return fd != -1;
    }
    void ClosePort();
    
    void HandleBarCommand(const WeighingSystem::BarCommandUpdate& cmd);

    // 前拦车器两个 GPIO 显式 init（export + direction + 写 0）
    // 失败也不抛异常，保证调用点可以无脑连续调
    void InitFrontBarGpioPair();
   
private:
    
};

#endif