/*

* 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: 

*

*/

#ifndef TSTASKMONITOR_P_H

#define TSTASKMONITOR_P_H

#include <w32std.h>

#include <QList>

#include <QSharedPointer>

#include <QPair>

#include <QDateTime>

#include "tstaskmonitorobserver.h"

#include "tstasklauncher.h"

#include "tstaskmonitor.h"

class RDesReadStream;

class TsTask;

class TsTaskContent;

class CTsTaskMonitorClient;

class TsTaskMonitorHistory;

class TsTaskMonitorPrivate : public MTsTaskMonitorObserver, public TsTaskLauncher

{

public:

    TsTaskMonitorPrivate(TsTaskMonitor *q);

    virtual ~TsTaskMonitorPrivate();

public:

    QList<TsTaskChange> changeList(bool fullList = false);

public: // from MTsTaskMonitorObserver

    virtual void HandleRunningAppChange();

public: // from TsTaskLauncher

    virtual void openTask(const QByteArray &key);

    virtual void closeTask(const QByteArray &key);

private: // helper methods

    TsTaskMonitorHistory internalizeContentL(RDesReadStream &dataStream,

                             QSharedPointer<TsTaskContent> &content );

    QDateTime dateTimeFromS60(const TTime &s60Time);

    //for comparing algorithm

    int         findItemIndex(const QList<TsTaskMonitorHistory> &historyList,

                              const TsTaskMonitorHistory &item );

    QList<int>  findInserts(const QList<TsTaskMonitorHistory> &newHistory);

    QList<int>  findDeletes(const QList<TsTaskMonitorHistory> &newHistory);

    QList<TsTaskChange> getDeletesChangeset(const QList<int> &deleteList);

    QList<TsTaskChange> getInsertsChangeset(const QList<int> &insertList,

                                   const QList< QSharedPointer<TsTaskContent> > &taskList);

    QList<TsTaskMonitorHistory> substractInsertsFromNew(

                                          const QList<int> &insertList,

                                          const QList<TsTaskMonitorHistory> &newHistory );

    QList<TsTaskMonitorHistory> substractDeletesFromOld(

                                          const QList<int> &deleteList);

    QList<TsTaskChange> findMovesAndUpdates(

                                   const QList<TsTaskMonitorHistory> &newMinusInserts,

                                   const QList< QSharedPointer<TsTaskContent> > &taskList,

                                   QList<TsTaskMonitorHistory> &workingList);

private:    

    TsTaskMonitor *q_ptr;

    CTsTaskMonitorClient *mClient;

    RWsSession &mWsSession;

    QList<TsTaskMonitorHistory> mTaskHistory;

};

#endif //TSTASKMONITOR_P_H