/****************************************************************************
**
** Copyright (C) 2015 basysKom GmbH, opensource@basyskom.com
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtOpcUa module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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** a written agreement between you and The Qt Company. For licensing terms
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** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
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** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QFREEOPCUASUBSCRIPTION_H
#define QFREEOPCUASUBSCRIPTION_H

#include <QtOpcUa/qopcuamonitoredevent.h>
#include <QtOpcUa/qopcuamonitoredvalue.h>
#include <private/qopcuasubscriptionimpl_p.h>

#include <opc/ua/subscription.h>

namespace OpcUa {
    class Event;
    class UaClient;
}

QT_BEGIN_NAMESPACE

class QOpcUaNode;
class QFreeOpcUaMonitoredValue;
class QOpcUaSubscription;

class QFreeOpcUaSubscription : public QOpcUaSubscriptionImpl, public OpcUa::SubscriptionHandler
{
public:
    explicit QFreeOpcUaSubscription(OpcUa::UaClient *client, quint32 interval);
    ~QFreeOpcUaSubscription() override;

    // FreeOPC-UA callbacks
    void DataChange(uint32_t handle, const OpcUa::Node &node, const OpcUa::Variant &val,
                    OpcUa::AttributeId attr) override;
    void Event(quint32 handle, const OpcUa::Event &event) override;

    QOpcUaMonitoredEvent *addEvent(QOpcUaNode *node) override;
    void removeEvent(QOpcUaMonitoredEvent *event) override;
    QOpcUaMonitoredValue *addValue(QOpcUaNode *node) override;
    void removeValue(QOpcUaMonitoredValue *value) override;

    OpcUa::UaClient *m_client;
    QOpcUaSubscription *m_qsubscription;
    OpcUa::Subscription::SharedPtr m_subscription;
    QMap<int32_t, QOpcUaMonitoredValue *> m_dataChangeHandles;
    QMap<int32_t, QOpcUaMonitoredEvent *> m_eventHandles;
};

QT_END_NAMESPACE

#endif // QFREEOPCUASUBSCRIPTION_H