/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
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****************************************************************************/

#include "q3dspresentationitem_p.h"

#include <QtStudio3D/q3dssceneelement.h>
#include <QtStudio3D/q3dsdatainput.h>
#include <QtStudio3D/private/q3dspresentation_p.h>
#include <QtStudio3D/private/viewerqmlstreamproxy_p.h>
#include <QtCore/qdebug.h>

QT_BEGIN_NAMESPACE

Q3DSPresentationItem::Q3DSPresentationItem(QObject *parent)
    : Q3DSPresentation(parent)
    , m_subPresentationSettings(nullptr)
{
}

Q3DSPresentationItem::~Q3DSPresentationItem()
{
}

/*!
    Returns the \l SubPresentationSettings associated with this presentation.
*/
Q3DSSubPresentationSettings *Q3DSPresentationItem::subPresentationSettings() const
{
    return m_subPresentationSettings;
}

QQmlListProperty<QObject> Q3DSPresentationItem::qmlChildren()
{
    return QQmlListProperty<QObject>(this, nullptr, &appendQmlChildren, nullptr, nullptr, nullptr);
}

void Q3DSPresentationItem::appendQmlChildren(QQmlListProperty<QObject> *list, QObject *obj)
{
    auto item = qobject_cast<Q3DSPresentationItem *>(list->object);
    if (item) {
        auto scene = qobject_cast<Q3DSSceneElement *>(obj);
        if (scene) {
            if (item->registeredElement(scene->elementPath()))
                qWarning() << __FUNCTION__ << "A duplicate SceneElement defined for Presentation.";
            else
                item->registerElement(scene);
        } else {
            auto studioElement = qobject_cast<Q3DSElement *>(obj);
            if (studioElement) {
                if (item->registeredElement(studioElement->elementPath()))
                    qWarning() << __FUNCTION__ << "A duplicate Element defined for Presentation.";
                else
                    item->registerElement(studioElement);
            } else {
                auto subPresSettings = qobject_cast<Q3DSSubPresentationSettings *>(obj);
                if (subPresSettings) {
                    if (item->m_subPresentationSettings) {
                        qWarning() << __FUNCTION__
                                   << "Duplicate SubPresentationSettings defined for Presentation.";
                    } else {
                        item->m_subPresentationSettings = subPresSettings;
                        item->d_ptr->streamProxy()->setSettings(subPresSettings);
                    }
                } else {
                    auto dataInput = qobject_cast<Q3DSDataInput *>(obj);
                    if (dataInput) {
                        if (item->registeredDataInput(dataInput->name())) {
                            qWarning() << __FUNCTION__
                                       << "Duplicate DataInput defined for Presentation.";
                        } else {
                            item->registerDataInput(dataInput);
                        }
                    } else {
                        auto dataOutput = qobject_cast<Q3DSDataOutput *>(obj);
                        if (dataOutput) {
                            if (item->registeredDataOutput(dataOutput->name())) {
                                qWarning() << __FUNCTION__
                                           << "Duplicate DataOutput defined for Presentation.";
                            } else {
                                item->registerDataOutput(dataOutput);
                            }
                        }
                    }
                }
            }
        }
    }
}

QT_END_NAMESPACE