#ifndef GLOBALFUNC_H
#define GLOBALFUNC_H

#include <QWidget>
#include <QtEndian>
#include "pcaprethread.h"

struct Head {
    byte pre[2]{0x55, 0x55};
    byte ver{1};
    byte srv{0};
    quint16_be len{0};
    byte tgtAddr[4]{0xff, 0xff, 0xff, 0xff};
    byte srcAddr[4]{0, 0, 0, 0};
    byte ptr[4]{0, 0, 0, 0};
    byte ans[2]{0, 0};
    quint32_be chk{0};
    byte bodyh[4]{0, 0, 0, 0};
    quint16_be bodylen{0};
};
struct Msg1024 : Head {
    byte body[1024-sizeof(Head)]{0};
};
static byte fi = 0;
inline byte ie(byte size = 1) {
    fi = size;
    return 0;
}
inline byte ipp(byte size = 1) {
    auto rtn = fi;
    fi += size;
    return rtn;
}
struct HeadMap {
    byte pre{ipp(2)};
    byte ver{fi++};
    byte srv{fi++};
    byte len{ipp(2)};
    byte tgtAddr{ipp(4)};
    byte srcAddr{ipp(4)};
    byte ptr{ipp(4)};
    byte ans{ipp(2)};
    byte chk{ipp(4)};
    byte body{ipp(4)};
    byte bodylen{ipp(2)};
    byte end{fi};
};
extern HeadMap headMap;
extern pcap_t *pcapSend;
extern PcapReThread *reThd;

QByteArray getNetDev(QWidget *parent, QByteArray, bool);

inline int sendMsgNet(const byte *msg, int size, const Resp &resp) {
    reThd->addResp(resp);
    return pcap_sendpacket(pcapSend, msg, size);
}
inline int sendMsg(const byte *msg, int size, const Resp &resp) {
    return sendMsgNet(msg, size, resp);
}
inline int sendMsg(QByteArray &msg, const Resp &resp) {
    return sendMsg((byte*)msg.data(), msg.size(), resp);
}

#endif // GLOBALFUNC_H