/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#include <QDataStream>

#include <QFile>

#include "irqisdsdatastructure.h"

#include "irlastplayedstationinfo.h"

const QString KFileName("C:\\Private\\E28364bb\\lastPlayed.dat");

IRLastPlayedStationInfo::IRLastPlayedStationInfo() : iLastPlayedStation(NULL), iUpdated(false),

                                                     iConnectedFrom(EIRQIsds)

{

    readLastPlayedStation();

}

IRLastPlayedStationInfo::~IRLastPlayedStationInfo()

{

    delete iLastPlayedStation;

    iLastPlayedStation = NULL;

}

void IRLastPlayedStationInfo::updateLastPlayedStation(IRQPreset *aPreset, IRQConnectedFrom aConnectedFrom)

{

    Q_ASSERT(aPreset);

    if (iLastPlayedStation == NULL)

    {

        iLastPlayedStation = new IRQPreset;

    }

    *iLastPlayedStation = *aPreset;

    iConnectedFrom = aConnectedFrom;

    iUpdated = true;

}

void IRLastPlayedStationInfo::commitLastPlayedStation()

{

    if (NULL == iLastPlayedStation || false == iUpdated)

    {

        return;

    }

    QFile file(KFileName);

    bool ret = file.open(QIODevice::Truncate | QIODevice::WriteOnly);

    if (!ret)

    {

        return;

    }

    QDataStream outStream(&file);

    qint32 connectedFrom = iConnectedFrom;

    outStream<<connectedFrom;

    iLastPlayedStation->externalize(outStream);

    file.close();

    iUpdated = false;

}

IRQPreset * IRLastPlayedStationInfo::getLastPlayedStation() const

{

    return iLastPlayedStation;

}

void IRLastPlayedStationInfo::readLastPlayedStation()

{ 

    if (!QFile::exists(KFileName))

    {

        return;

    }

    QFile file(KFileName);

    bool ret = file.open(QIODevice::ReadOnly);

    if (!ret)

    {

        return;

    }

    QDataStream inStream(&file);

    qint32 connectedFrom = EIRQIsds;

    inStream>>connectedFrom;

    if(connectedFrom < EIRQConnectedFromMaxValue)

    {

        iConnectedFrom = static_cast<IRQConnectedFrom>(connectedFrom);

    }

    else

    {

        iConnectedFrom = EIRQIsds;

    }

    iLastPlayedStation = new IRQPreset;

    iLastPlayedStation->internalize(inStream);

    file.close();

}

IRQConnectedFrom IRLastPlayedStationInfo::connectedFrom() const

{

    return iConnectedFrom;

}