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#include "qdeclarativegeomapparameter_p.h"

#include <QByteArray>
#include <QMetaObject>
#include <QMetaProperty>
#include <QSignalMapper>

QT_BEGIN_NAMESPACE

/*!
    \qmltype MapParameter
    \instantiates QDeclarativeGeoMapParameter
    \inqmlmodule QtLocation
    \ingroup qml-QtLocation5-maps
    \since Qt Location 5.9

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

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

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

    The release of this API with Qt 5.9 is a Technology Preview.
*/

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

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

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;
        }

        QSignalMapper *mapper = new QSignalMapper(this);
        mapper->setMapping(this, i);

        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