#include "CANAnalyzer.h"
#include "PCANInterface.h"
#include "GeneralMessagesLogDispatcher.h"
#include "CANDatabase.h"

CCANAnalyzer::CCANAnalyzer(QObject *parent) : QObject(parent)
{
    mCANDriverIF = 0;
    mCANDatabase = 0;
    mIsCANInitialized = false;

    mCANReadTimer = new QTimer;
    mCANReadTimer->setInterval(1000);
    mCANReadTimer->setSingleShot(true);
    connect(mCANReadTimer,SIGNAL(timeout()),this,SLOT(CANTimerExpired()));
}

CCANAnalyzer::~CCANAnalyzer()
{
    mCANDriverIF->DeInit(0);
    delete mCANReadTimer;
    while (!mLastMessagesList.isEmpty())
    {
          delete mLastMessagesList.takeFirst();
    }
 }

int CCANAnalyzer::Init(CPCANInterface *CANDriverInterface,CCANDatabase *CANDatabaseHandle)
{
    if(CANDriverInterface == 0 || CANDatabaseHandle == 0)
    {
        return RET_GENERAL_ERROR;
        mIsCANInitialized = false;
    }

    mCANDriverIF = CANDriverInterface;
    mCANDatabase = CANDatabaseHandle;

    CGeneralMessagesLogDispatcher::instance()->AddLogMessage("OtarcikCan modules starting...");

    if(mCANDriverIF->Init() != RET_OK)
    {
        mIsCANInitialized = false;
    }

    mCANReadTimer->start();
    mIsCANInitialized = true;

    return RET_OK;
}

int CCANAnalyzer::ReadCAN()
{
//    TPCANMsg CANMsg;
//    TPCANTimestamp CANTimeStamp;

//    // We execute the "Read" function of the PCANBasic
//    TPCANStatus stsResult = CAN_Read(PcanHandle, &CANMsg, &CANTimeStamp);

//    if (stsResult != PCAN_ERROR_QRCVEMPTY)
//    {
//        // We process the received message
//        ProcessMessageCan(CANMsg, CANTimeStamp);
//    }

//    return stsResult;
}

void CCANAnalyzer::CANTimerExpired()
{
    QList<CCANMessage *> NewMessagesList = mCANDriverIF->ReadCANFullBuffer(0x51U);

    unsigned int DeletedPtrs = 0;
    if(NewMessagesList.isEmpty())
    {
        return;
    }

    for(int i = 0; i < NewMessagesList.size(); i++)
    {
        if(mLastMessagesList.isEmpty())
        {
            mLastMessagesList.append(NewMessagesList.at(i));
        }
        else
        {
            //Check if new message ID for this device already exists in the list.
            bool found = false;
            for(int j = 0; j  < mLastMessagesList.size(); j++)
            {
                if(NewMessagesList[i]->mCANChannel == mLastMessagesList[j]->mCANChannel &&
                   NewMessagesList[i]->mCANMsgID == mLastMessagesList[j]->mCANMsgID)
                {
                    //This message ID is already populated in the list.  Update the value and delete the new instance
                    mLastMessagesList[j]->mCANMsgData = NewMessagesList[i]->mCANMsgData;
                    mLastMessagesList[j]->mCANMsgMicrosecs = NewMessagesList[i]->mCANMsgMicrosecs;
                    mLastMessagesList[j]->mCANMsgMillisecs = NewMessagesList[i]->mCANMsgMillisecs;
                    mLastMessagesList[j]->mCANMsgMillisecsOverflow = NewMessagesList[i]->mCANMsgMillisecsOverflow;

                    delete NewMessagesList[i];
                    DeletedPtrs++;
                    found = true;
                    break;
                }
            }
            if(!found)
            {
                //This is the first time we receive this message, just add it to the list.
                mLastMessagesList.append(NewMessagesList[i]);
            }


        }
    }

    NewMessagesList.clear();

    mCANReadTimer->start();
}