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#include "qmlpropertychangesnodeinstance.h"
#include "qmlstatenodeinstance.h"
#include <QQmlEngine>
#include <QQmlContext>
#include <QQmlExpression>
#include <private/qqmlbinding_p.h>
#include <QMutableListIterator>


#include <private/qquickstate_p_p.h>
#include <private/qquickpropertychanges_p.h>
#include <private/qqmlproperty_p.h>

namespace QmlDesigner {
namespace Internal {

QmlPropertyChangesNodeInstance::QmlPropertyChangesNodeInstance(QQuickPropertyChanges *propertyChangesObject) :
        ObjectNodeInstance(propertyChangesObject)
{
}

QmlPropertyChangesNodeInstance::Pointer QmlPropertyChangesNodeInstance::create(QObject *object)
{
    QQuickPropertyChanges *propertyChange = qobject_cast<QQuickPropertyChanges*>(object);

    Q_ASSERT(propertyChange);

    Pointer instance(new QmlPropertyChangesNodeInstance(propertyChange));

    instance->populateResetHashes();

    return instance;
}

void QmlPropertyChangesNodeInstance::setPropertyVariant(const PropertyName &name, const QVariant &value)
{
    QMetaObject metaObject = QQuickPropertyChanges::staticMetaObject;

    if (metaObject.indexOfProperty(name) > 0) { // 'restoreEntryValues', 'explicit'
        ObjectNodeInstance::setPropertyVariant(name, value);
    } else {
        changesObject()->changeValue(name, value);
        QObject *targetObject = changesObject()->object();
        if (targetObject && nodeInstanceServer()->activeStateInstance().isWrappingThisObject(changesObject()->state())) {
            if (nodeInstanceServer()->hasInstanceForObject(targetObject)) {
                ServerNodeInstance targetInstance = nodeInstanceServer()->instanceForObject(targetObject);
                targetInstance.setPropertyVariant(name, value);
            }
        }
    }
}

void QmlPropertyChangesNodeInstance::setPropertyBinding(const PropertyName &name, const QString &expression)
{
    QMetaObject metaObject = QQuickPropertyChanges::staticMetaObject;

    if (metaObject.indexOfProperty(name) > 0) { // 'restoreEntryValues', 'explicit'
        ObjectNodeInstance::setPropertyBinding(name, expression);
    } else {
        changesObject()->changeExpression(name, expression);
    }
}

QVariant QmlPropertyChangesNodeInstance::property(const PropertyName &name) const
{
    return changesObject()->property(name);
}

void QmlPropertyChangesNodeInstance::resetProperty(const PropertyName &name)
{
    changesObject()->removeProperty(name);
}


void QmlPropertyChangesNodeInstance::reparent(const ObjectNodeInstance::Pointer &oldParentInstance, const PropertyName &oldParentProperty, const ObjectNodeInstance::Pointer &newParentInstance, const PropertyName &newParentProperty)
{
    changesObject()->detachFromState();

    ObjectNodeInstance::reparent(oldParentInstance, oldParentProperty, newParentInstance, newParentProperty);

    changesObject()->attachToState();
}

QQuickPropertyChanges *QmlPropertyChangesNodeInstance::changesObject() const
{
    Q_ASSERT(qobject_cast<QQuickPropertyChanges*>(object()));
    return static_cast<QQuickPropertyChanges*>(object());
}

} // namespace Internal
} // namespace QmlDesigner