/*

* 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 <hbicon.h>

#include <QBrush>

#include "irqsonghistoryinfo.h"

#include "irqsonghistoryengine.h"

#include "irhistorymodel.h"

#include "iruidefines.h"

IRHistoryModel::IRHistoryModel(QObject *aParent) : QAbstractListModel(aParent)

{

    iStationLogo = new HbIcon(":/stationlist/icon_stationdefault.png");

    iHistoryEngine = IRQSongHistoryEngine::openInstance();

    getAllList();

}

IRHistoryModel::~IRHistoryModel()

{

    delete iStationLogo;

    iStationLogo = NULL;

    clearAndDestroyLogos();

    while (!iHistoryList.isEmpty())

    {

        delete iHistoryList.takeFirst();

    }

    if (iHistoryEngine)

    {

        iHistoryEngine->closeInstance();

        iHistoryEngine = NULL;

    }

}

int IRHistoryModel::rowCount(const QModelIndex &aParent) const

{

    Q_UNUSED(aParent);

    return iHistoryList.count();

}

QString IRHistoryModel::getImageUrl(int aRow) const

{

    return iHistoryList.at(aRow)->getImageUrl();

}

void IRHistoryModel::setLogo(HbIcon *aIcon, int aIndex)

{

    iLogos[aIndex] = aIcon;

    emit dataChanged(index(aIndex), index(aIndex));

}

QVariant IRHistoryModel::data(const QModelIndex &aIndex, int aRole) const

{

    if (!aIndex.isValid())

    {

        return QVariant();

    }

    if (aIndex.row() >= iHistoryList.count())

    {

        return QVariant();

    }

    if (aRole == Qt::DisplayRole)

    {

        QVariantList list;

        int row = aIndex.row();

        QString primaryText = QString::number(row+1) + ". " + iHistoryList.at(row)->getChannelName();

        list.append(primaryText);

        // fix bug #9888,if left descriptions as blank, only one line appears

        QString tempDes = iHistoryList.at(row)->getChannelDesc();

        if (0 == tempDes.length())

        {

            tempDes = " ";

        }

        list.append(tempDes);

        return list;

    }

    else if (aRole == Qt::DecorationRole)

    {

        QVariantList list;

        int row = aIndex.row();

        const HbIcon *icon = iLogos.value(row);

        if (icon)

        {

            list.append(*icon);

        }

        else

        {

            list.append(*iStationLogo);

        }

        return list;

    }

    else if (aRole == Qt::BackgroundRole)

    {

        if (aIndex.row() % 2 == 0)

        {

            return QBrush(KListEvenRowColor);

        }

        else

        {

            return QBrush(KListOddRowColor);

        }

    }

    return QVariant();

}

IRQSongHistoryInfo* IRHistoryModel::getHistoryInfo(int aIndex)

{

    if (aIndex >= 0 && aIndex < iHistoryList.count())

    {

        return iHistoryList.at(aIndex);

    }

    return NULL;

}

void IRHistoryModel::clearAllList()

{

    while (!iHistoryList.isEmpty())

    {

        IRQSongHistoryInfo *firstItem = iHistoryList.takeFirst();

        delete firstItem;

    }

    iHistoryEngine->clearAllHistory();

    clearAndDestroyLogos();

    emit modelChanged();

}

bool IRHistoryModel::checkHistoryUpdate()

{

    getAllList();    

    return true;

}

void IRHistoryModel::clearAndDestroyLogos()

{

    for (QMap<int, HbIcon*>::iterator it = iLogos.begin(); it != iLogos.end(); ++it)

    {

        delete it.value();

    }

    iLogos.clear();

}

void IRHistoryModel::getAllList()

{

    iHistoryEngine->getAllHistory(iHistoryList);

    emit modelChanged();

}

bool IRHistoryModel::deleteOneItem(int aIndex)

{

    bool ret = iHistoryEngine->deleteOneItem(aIndex);

    if( !ret )

    {

        return false;                

    }

    beginRemoveRows(QModelIndex(), aIndex, aIndex);

    iHistoryList.removeAt(aIndex);

    endRemoveRows(); 

    emit modelChanged();    

    return true;

}