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#ifndef CNTSYMBIANDATABASE_H

#define CNTSYMBIANDATABASE_H

// System includes

#include <QList>

#include <QObject>

#include <e32std.h>

#include <cntdb.h>

#include <cntdbobs.h>

// User includes

#include "qcontactmanager.h"

// Forward declarations

QTM_BEGIN_NAMESPACE

class QContactManagerEngine;

QTM_END_NAMESPACE

QTM_USE_NAMESPACE

// External data types

// Constants

class CntSymbianDatabase : public QObject, public MContactDbObserver

#ifdef SYMBIAN_BACKEND_USE_SQLITE  

, public MContactDbObserverV2

#endif

{

Q_OBJECT

public:

    CntSymbianDatabase(QContactManagerEngine *engine, QContactManager::Error* error);

    ~CntSymbianDatabase();

public:

    CContactDatabase* contactDatabase();

    void appendContactsEmitted(const QList<QContactLocalId>& contactList);

    void appendContactEmitted(QContactLocalId id);

public:

    // From MContactDbObserver

    void HandleDatabaseEventL(TContactDbObserverEvent aEvent);

#ifdef SYMBIAN_BACKEND_USE_SQLITE    

    // From MContactDbObserverV2

    void HandleDatabaseEventV2L(TContactDbObserverEventV2 aEvent);

#endif    

private:

    void initializeL();

    void updateGroupMembershipsL();

    void updateGroupMembershipsL(QContactLocalId groupId, QSet<QContactLocalId> &added, QSet<QContactLocalId> &removed);

    QSet<QContactLocalId> groupMembersL(QContactLocalId groupId);

private:

#ifndef SYMBIAN_BACKEND_USE_SQLITE

    CContactChangeNotifier* m_contactChangeNotifier;

#endif

    QContactManagerEngine *m_engine;

    CContactDatabase* m_contactDatabase;

    QList<QContactLocalId> m_contactsEmitted;

    QContactLocalId m_currentOwnCardId;

    QMap<QContactLocalId, QSet<QContactLocalId> > m_groupContents;

#ifdef CNTSYMBIANDATABASE_UNIT_TEST

    friend class TestCntSymbianDatabase;

#endif  //CNTSYMBIANDATABASE_UNIT_TEST

};

#endif // CNTSYMBIANDATABASE_H