/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
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** This file is part of the QtLocation module of the Qt Toolkit.
**
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** accordance with the commercial license agreement provided with the
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** 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
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** 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
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****************************************************************************/

#include "qdeclarativegeomapparameter_p.h"

#include <QByteArray>
#include <QMetaObject>
#include <QMetaProperty>
#include <QObject>

QT_BEGIN_NAMESPACE

namespace {
class SignalMapper : public QObject
{
    Q_OBJECT

    int i;
public:
    explicit SignalMapper(int i, QObject *parent = nullptr)
        : QObject(parent), i(i) {}

public Q_SLOTS:
    void map() { emit mapped(i); }

Q_SIGNALS:
    void mapped(int);
};
} // unnamed namespace

/*!
    \qmltype MapParameter
    \inqmlmodule QtLocation
    \ingroup qml-QtLocation5-maps
    \since QtLocation 5.9
    \deprecated

    Use \l DynamicParameter instead.
*/

/*!
    \qmltype DynamicParameter
    \instantiates QDeclarativeGeoMapParameter
    \inqmlmodule QtLocation
    \ingroup qml-QtLocation5-maps
    \since Qt Location 5.11

    \brief The DynamicParameter type represents a parameter for a Map element.
    This type provides a mean to specify plugin-dependent optional parameters
    for a map.

    DynamicParameters by default contain only the \l type property, and
    are highly plugin-dependent.
    For this reason, additional properties have to be defined inside a
    DynamicParameter at declaration time, using the QML syntax "property var foo".

    What properties have to be put inside a particular DynamicParameter type for
    a particular plugin can be found in the documentation of the plugin.
    Note that DynamicParameters are \b optional.
    By not specifying any of them, the Map will have the default behavior.
*/

/*!
    \qmlproperty string QtLocation::DynamicParameter::type

    Set-once property which holds a string defining the type of the DynamicParameter
*/

QDeclarativeGeoMapParameter::QDeclarativeGeoMapParameter(QObject *parent)
:   QGeoMapParameter(parent), m_initialPropertyCount(metaObject()->propertyCount()), m_complete(false)
{

}

QDeclarativeGeoMapParameter::~QDeclarativeGeoMapParameter()
{
}

bool QDeclarativeGeoMapParameter::isComponentComplete() const
{
    return m_complete;
}

int QDeclarativeGeoMapParameter::initialPropertyCount() const
{
    return m_initialPropertyCount;
}

void QDeclarativeGeoMapParameter::classBegin()
{
}

void QDeclarativeGeoMapParameter::componentComplete()
{
    for (int i = m_initialPropertyCount; i < metaObject()->propertyCount(); ++i) {
        QMetaProperty property = metaObject()->property(i);

        if (!property.hasNotifySignal()) {
            return;
        }

        SignalMapper *mapper = new SignalMapper(i, this);

        const QByteArray signalName = '2' + property.notifySignal().methodSignature(); // TODO: explain why '2'
        QObject::connect(this, signalName, mapper, SLOT(map()));
        QObject::connect(mapper, SIGNAL(mapped(int)), this, SLOT(onPropertyUpdated(int)));
    }
    m_complete = true;
    emit completed(this);
}

void QDeclarativeGeoMapParameter::onPropertyUpdated(int index)
{
    emit propertyUpdated(this, metaObject()->property(index).name());
}

QT_END_NAMESPACE

#include "qdeclarativegeomapparameter.moc"