#include "pcmsgbuffer.h"

pcmsgbuffer::pcmsgbuffer()
{

}

void pcmsgbuffer::run()
{
    while(!QThread::isInterruptionRequested())
    {
        mMutex.lock();
        qint64 nowtime = QDateTime::currentMSecsSinceEpoch();
        int i;
        for(i=0;i<mvectorpcmsgstate.size();i++)
        {
            if((nowtime - mvectorpcmsgstate[i].nsendtime) > OVERTIME)
            {
                mvectorpcmsgstate.erase(mvectorpcmsgstate.begin() + i);
                i--;
            }
        }
        mMutex.unlock();
        msleep(100);
    }
}

unsigned int pcmsgbuffer::addmsg(int id, qint64 ntime, std::string strVIN, std::string strctrlMD5, std::vector<char> *pxdata,bool bImportant,int nkeeptime,float framerate)
{
    unsigned int nrtn;
    mMutex.lock();
    iv::pcmsg * pmsg = 0;
    int nsize = mvectormsg.size();
    int i;
    for(i=0;i<nsize;i++)
    {
        if(strncmp(mvectormsg[i].strVIN.data(),strVIN.data(),255) == 0)
        {
            pmsg = &mvectormsg[i];
            break;
        }
    }
    if(pmsg == 0)
    {
        iv::pcmsg cmsg;
        cmsg.id = id;
        cmsg.ntime = ntime;
        cmsg.strVIN = strVIN;
        cmsg.strctrlMD5 = strctrlMD5;
        if(pxdata->size() > 0)
        {
            cmsg.xdata.resize(pxdata->size());
            memcpy(cmsg.xdata.data(),pxdata->data(),pxdata->size());
        }
        cmsg.mlastuptime = QDateTime::currentMSecsSinceEpoch();
        cmsg.nsendid = muid;
        cmsg.mbImportant = bImportant;
        cmsg.mkeeptime = nkeeptime;
        cmsg.framerate = framerate;
        nrtn = muid;
        muid++;
        mvectormsg.push_back(cmsg);
        iv::pcmsgstate xpms;xpms.nsendid = cmsg.nsendid;
        xpms.nsendtime = QDateTime::currentMSecsSinceEpoch();
        mvectorpcmsgstate.push_back(xpms);
        mMutex.unlock();
        return nrtn;
    }

    if((pmsg->mbImportant != true)||((QDateTime::currentMSecsSinceEpoch() - pmsg->mlastuptime)>=pmsg->mkeeptime))
    {
        changesendstate(pmsg->nsendid,-2);
        pmsg->mbImportant = bImportant;
        pmsg->mkeeptime = nkeeptime;
        pmsg->id = id;
        pmsg->ntime = ntime;
        pmsg->strctrlMD5 = strctrlMD5;
        pmsg->xdata.clear();
        pmsg->nsendid = muid;
 //       cmsg.mlastuptime = QDateTime::currentMSecsSinceEpoch();
        nrtn = muid;
        iv::pcmsgstate xpms;xpms.nsendid = pmsg->nsendid;
        pmsg->mlastuptime = QDateTime::currentMSecsSinceEpoch();
        mvectorpcmsgstate.push_back(xpms);
        muid++;
        if(pxdata->size()>0)
        {
            pmsg->xdata.resize(pxdata->size());
            memcpy(pmsg->xdata.data(),pxdata->data(),pxdata->size());
        }
    }


    mMutex.unlock();
    return nrtn;
}

int pcmsgbuffer::getmsg(std::string strVIN, std::string strctrlMD5, int &id, qint64 &ntime, std::vector<char> *pxdata,float * framerate)
{
    mMutex.lock();
    iv::pcmsg * pmsg = 0;
    int nsize = mvectormsg.size();
    int i;
    int npos;
    for(i=0;i<nsize;i++)
    {
        if(strncmp(mvectormsg[i].strVIN.data(),strVIN.data(),255) == 0)
        {
            pmsg = &mvectormsg[i];
            npos = i;
            break;
        }
    }

    if(pmsg == 0)
    {
//        std::cout<<" no this vin data"<<std::endl;;
        mMutex.unlock();
        return 0;
    }
    if(strctrlMD5 != pmsg->strctrlMD5)
    {
        std::cout<<" ctrl error."<<std::endl;
        changesendstate(pmsg->nsendid,-1);
        mMutex.unlock();
        return -2;
    }

    id = pmsg->id;
    ntime = pmsg->ntime;
    *framerate = pmsg->framerate;
    pxdata->clear();
    int ndatasize = pmsg->xdata.size();
    pxdata->resize(ndatasize);
    memcpy(pxdata->data(),pmsg->xdata.data(),ndatasize);
    changesendstate(pmsg->nsendid,1);

    mvectormsg.erase(mvectormsg.begin()+npos);
    mMutex.unlock();
    return 1;
}

void pcmsgbuffer::changesendstate(int nsendid, int nstate)
{
    int nstatesize = mvectorpcmsgstate.size();
    int i;
    for(i=0;i<nstatesize;i++)
    {
        if(nsendid == mvectorpcmsgstate[i].nsendid)
        {
            mvectorpcmsgstate[i].nstate = nstate; //Send OK
            break;
        }
    }
}

int pcmsgbuffer::querysendstate(int nsendid)
{
    int nrtn = -2;
    mMutex.lock();
    int nstatesize = mvectorpcmsgstate.size();
    int i;
    for(i=0;i<nstatesize;i++)
    {
        if(nsendid == mvectorpcmsgstate[i].nsendid)
        {
            nrtn = mvectorpcmsgstate[i].nstate;
            break;
        }
    }
    mMutex.unlock();
    return nrtn;
}