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#ifndef QNETWORKSESSION_IMPL_H
#define QNETWORKSESSION_IMPL_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtNetwork/private/qnetworksession_p.h>

#include <QDateTime>

#include <e32base.h>
#include <commdbconnpref.h>
#include <es_sock.h>
#include <rconnmon.h>
#ifdef SNAP_FUNCTIONALITY_AVAILABLE
    #include <comms-infras/cs_mobility_apiext.h>
#endif

typedef int(*TOpenCSetdefaultifFunction)(const struct ifreq*);

QT_BEGIN_NAMESPACE

class ConnectionProgressNotifier;
class SymbianEngine;

class QNetworkSessionPrivateImpl : public QNetworkSessionPrivate, public CActive,
#ifdef SNAP_FUNCTIONALITY_AVAILABLE
                                   public MMobilityProtocolResp,
#endif
                                   public MConnectionMonitorObserver
{
    Q_OBJECT
public:
    QNetworkSessionPrivateImpl(SymbianEngine *engine);
    ~QNetworkSessionPrivateImpl();
    
    //called by QNetworkSession constructor and ensures
    //that the state is immediately updated (w/o actually opening
    //a session). Also this function should take care of 
    //notification hooks to discover future state changes.
    void syncStateWithInterface();

#ifndef QT_NO_NETWORKINTERFACE
    QNetworkInterface currentInterface() const;
#endif
    QVariant sessionProperty(const QString& key) const;
    void setSessionProperty(const QString& key, const QVariant& value);
    
    void setALREnabled(bool enabled);

    void open();
    inline void close() { close(true); }
    void close(bool allowSignals);
    void stop();
    void migrate();
    void accept();
    void ignore();
    void reject();

    QString errorString() const; //must return translated string
    QNetworkSession::SessionError error() const;

    quint64 bytesWritten() const;
    quint64 bytesReceived() const;
    quint64 activeTime() const;
    
#ifdef SNAP_FUNCTIONALITY_AVAILABLE    
public: // From MMobilityProtocolResp
    void PreferredCarrierAvailable(TAccessPointInfo aOldAPInfo,
                                   TAccessPointInfo aNewAPInfo,
                                   TBool aIsUpgrade,
                                   TBool aIsSeamless);

    void NewCarrierActive(TAccessPointInfo aNewAPInfo, TBool aIsSeamless);

    void Error(TInt aError);
#endif    

protected: // From CActive
    void RunL();
    void DoCancel();
    
private: // MConnectionMonitorObserver
    void EventL(const CConnMonEventBase& aEvent);
    
private:
    TUint iapClientCount(TUint aIAPId) const;
    quint64 transferredData(TUint dataType) const;
    bool newState(QNetworkSession::State newState, TUint accessPointId = 0);
    void handleSymbianConnectionStatusChange(TInt aConnectionStatus, TInt aError, TUint accessPointId = 0);
    QNetworkConfiguration bestConfigFromSNAP(const QNetworkConfiguration& snapConfig) const;
    QNetworkConfiguration activeConfiguration(TUint32 iapId = 0) const;
#ifndef QT_NO_NETWORKINTERFACE
    QNetworkInterface interface(TUint iapId) const;
#endif

private: // data
    SymbianEngine *engine;

#ifndef QT_NO_NETWORKINTERFACE
    mutable QNetworkInterface activeInterface;
#endif

    QDateTime startTime;

    RLibrary iOpenCLibrary;
    TOpenCSetdefaultifFunction iDynamicSetdefaultif;

    mutable RSocketServ iSocketServ;
    mutable RConnection iConnection;
    mutable RConnectionMonitor iConnectionMonitor;
    ConnectionProgressNotifier* ipConnectionNotifier;
#ifdef SNAP_FUNCTIONALITY_AVAILABLE    
    CActiveCommsMobilityApiExt* iMobility;
#endif    
    
    QNetworkSession::SessionError iError;
    TInt iALREnabled;
    TBool iALRUpgradingConnection;
    
    QList<QString> iKnownConfigsBeforeConnectionStart;
    
    TUint32 iOldRoamingIap;
    TUint32 iNewRoamingIap;

    friend class ConnectionProgressNotifier;
};

class ConnectionProgressNotifier : public CActive
{
public:
    ConnectionProgressNotifier(QNetworkSessionPrivateImpl &owner, RConnection &connection);
    ~ConnectionProgressNotifier();
    
    void StartNotifications();
    void StopNotifications();
    
protected: // From CActive
    void RunL();
    void DoCancel();

private: // Data
    QNetworkSessionPrivateImpl &iOwner;
    RConnection& iConnection;
    TNifProgressBuf iProgress;
    
};

QT_END_NAMESPACE

#endif //QNETWORKSESSION_IMPL_H