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#ifndef SYMBIANSETTINGSLAYER_H

#define SYMBIANSETTINGSLAYER_H

#include "qvaluespace_p.h"

#include "qvaluespacepublisher.h"

#include <QHash>

#include <QSet>

#include <QByteArray>

#include <QMultiMap>

#ifdef __WINS__

    #include "pathmapper_symbian_p.h"

#else

    #include "pathmapper_proxy_symbian_p.h"

#endif

#include "xqsettingsmanager.h"

QTM_BEGIN_NAMESPACE

class SymbianSettingsLayer : public QAbstractValueSpaceLayer

{

    Q_OBJECT

public:

    SymbianSettingsLayer();

    virtual ~SymbianSettingsLayer();

protected:

    /*virtual*/ QString name();

    /*virtual*/ bool startup(Type type);

    /*virtual*/ QUuid id();

    /*virtual*/ unsigned int order();

    /*virtual*/ Handle item(Handle parent, const QString &subPath);

    /*virtual*/ void removeHandle(Handle handle);

    /*virtual*/ void setProperty(Handle handle, Properties properties);

    /*virtual*/ bool value(Handle handle, QVariant *data);

    /*virtual*/ bool value(Handle handle, const QString &subPath, QVariant *data);

    /*virtual*/ QSet<QString> children(Handle handle);

    /*virtual*/ QValueSpace::LayerOptions layerOptions() const;

    /* QValueSpaceSubscriber functions */

    /*virtual*/ bool supportsInterestNotification() const;

    /*virtual*/ bool notifyInterest(Handle handle, bool interested);

    /* QValueSpacePublisher functions */

    /*virtual*/ bool setValue(QValueSpacePublisher *creator, Handle handle,

                              const QString &subPath, const QVariant &value);

    /*virtual*/ bool removeValue(QValueSpacePublisher *creator, Handle handle,

                                 const QString &subPath);

    /*virtual*/ bool removeSubTree(QValueSpacePublisher *creator, Handle handle);

    /*virtual*/ void addWatch(QValueSpacePublisher *creator, Handle handle);

    /*virtual*/ void removeWatches(QValueSpacePublisher *creator, Handle parent);

    /*virtual*/ void sync();

public:

    static SymbianSettingsLayer *instance();

private:

    struct SymbianSettingsHandle {

        SymbianSettingsHandle(const QString &p)

        :   path(p), refCount(1)

        {

        }

        QString path;

        unsigned int refCount;

    };

    QHash<QString, SymbianSettingsHandle *> m_handles;

    SymbianSettingsHandle *symbianSettingsHandle(Handle handle)

    {

        if (handle == InvalidHandle)

            return 0;

        SymbianSettingsHandle *h = reinterpret_cast<SymbianSettingsHandle *>(handle);

        if (m_handles.values().contains(h))

            return h;

        return 0;

    }

private slots:

    void notifyChange(const XQSettingsKey& key);

private:    //data

    PathMapper m_pathMapper;

    XQSettingsManager m_settingsManager;

    QHash<QByteArray, SymbianSettingsHandle *> m_monitoringHandles;

    QSet<QString> m_monitoringPaths;

};

QTM_END_NAMESPACE

#endif //SYMBIANSETTINGSLAYER_H