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#ifndef QCONTACTMANAGER_P_H
#define QCONTACTMANAGER_P_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 <QMap>
#include <QMultiMap>
#include <QList>
#include <QString>

#include "qcontactmanager.h"
#include "qcontactmanagerengine.h"
#include "qcontactactionmanager_p.h"
#include "qcontactobserver.h"

QTM_USE_NAMESPACE
QTM_BEGIN_NAMESPACE

class QContactManagerEngineFactory;

/* Data and stuff that is shared amongst all backends */
class QContactManagerData
{
public:
    QContactManagerData()
        : m_engine(0),
        m_lastError(QContactManager::NoError),
        m_signalSource(0)
    {
    }

    ~QContactManagerData()
    {
        delete m_engine;
    }


    void createEngine(const QString& managerName, const QMap<QString, QString>& parameters);
    static QContactManagerData* get(const QContactManager* manager);
    static QContactManagerEngineV2* engine(const QContactManager* manager);

    QContactManagerEngineV2* m_engine;
    QContactManager::Error m_lastError;
    QMap<int, QContactManager::Error> m_lastErrorMap;

    /* Manager plugins */
    static QHash<QString, QContactManagerEngineFactory*> m_engines;
    static QSet<QContactManager*> m_aliveEngines;
    static QContactManagerData* managerData(QContactManager* manager) {return manager->d;}
    static QContactManagerData* managerData(const QContactManager* manager) {return manager->d;} // laziness to avoid const_cast
    static QList<QContactActionManagerPlugin*> m_actionManagers;
    static bool m_discoveredStatic;
    static QStringList m_pluginPaths;
    static void loadFactories();
    static void loadStaticFactories();

    // Observer stuff
    static void registerObserver(QContactManager *m, QContactObserver* observer);
    static void unregisterObserver(QContactManager *m, QContactObserver* observer);
    void _q_contactsUpdated(const QList<QContactLocalId>& ids);
    void _q_contactsDeleted(const QList<QContactLocalId>& ids);

    QMultiHash<QContactLocalId, QContactObserver*> m_observerForContact;

    // Lazy connection stuff - reference counted set
    QHash<QByteArray, int> m_connectedSignals;

    // If this is a wrapperv2, connect to the wrappee signals directly rather
    // than bouncing them twice
    QObject* m_signalSource; // where the signals we proxy come from - either m_engine or a v1engine that is wrapped

private:
    Q_DISABLE_COPY(QContactManagerData)
};

/*
    Helper to hold the error state of a synchronous operation - when destructed, updates the
    manager's last error variables to the result of this operation.  This means that during
    callbacks the error state can't be modified behind the engines back. and it's more conceptually
    correct.
 */
class QContactManagerSyncOpErrorHolder
{
public:
    QContactManagerSyncOpErrorHolder(const QContactManager* m, QMap<int, QContactManager::Error> *pUserError = 0)
        : error(QContactManager::NoError),
        data(QContactManagerData::managerData(m)),
        userError(pUserError)
    {
    }

    ~QContactManagerSyncOpErrorHolder()
    {
        data->m_lastError = error;
        data->m_lastErrorMap = errorMap;
        if (userError)
            *userError = errorMap;
    }

    QContactManager::Error error;
    QContactManagerData* data;
    QMap<int, QContactManager::Error> errorMap;
    QMap<int, QContactManager::Error> *userError;
};

QTM_END_NAMESPACE

#endif
