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#include "rendersettings_p.h"

#include <Qt3DCore/qscenepropertychange.h>
#include <Qt3DRender/private/abstractrenderer_p.h>

QT_BEGIN_NAMESPACE

using namespace Qt3DCore;

namespace Qt3DRender {
namespace Render {

RenderSettings::RenderSettings()
    : BackendNode()
{
}

void RenderSettings::updateFromPeer(Qt3DCore::QNode *peer)
{
    QRenderSettings *settings = static_cast<QRenderSettings *>(peer);
    m_pickMethod = settings->pickMethod();
    m_pickResultMode = settings->pickResultMode();
}

void RenderSettings::cleanup()
{
    m_pickMethod = QRenderSettings::BoundingVolumePicking;
    m_pickResultMode = QRenderSettings::NearestPick;
}

void RenderSettings::sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e)
{
    if (e->type() == NodeUpdated) {
        QScenePropertyChangePtr propertyChange = qSharedPointerCast<QScenePropertyChange>(e);
        if (propertyChange->propertyName() == QByteArrayLiteral("pickMethod"))
            m_pickMethod = propertyChange->value().value<QRenderSettings::PickMethod>();
        else if (propertyChange->propertyName() == QByteArrayLiteral("pickResult"))
            m_pickResultMode = propertyChange->value().value<QRenderSettings::PickResultMode>();
        markDirty(AbstractRenderer::AllDirty);
    }
}


RenderSettingsFunctor::RenderSettingsFunctor(AbstractRenderer *renderer)
    : m_renderer(renderer)
{
}

Qt3DCore::QBackendNode *RenderSettingsFunctor::create(Qt3DCore::QNode *frontend) const
{
    QRenderSettings *settingsFrontend = static_cast<QRenderSettings *>(frontend);
    if (m_renderer->settings() != Q_NULLPTR) {
        qWarning() << "Renderer settings already exists";
        return Q_NULLPTR;
    }

    RenderSettings *settings = new RenderSettings;
    settings->setPeer(settingsFrontend);
    settings->setRenderer(m_renderer);
    m_renderer->setSettings(settings);
    return settings;
}

Qt3DCore::QBackendNode *RenderSettingsFunctor::get(Qt3DCore::QNodeId id) const
{
    Q_UNUSED(id);
    return Q_NULLPTR;
}

void RenderSettingsFunctor::destroy(Qt3DCore::QNodeId id) const
{
    Q_UNUSED(id);
    // Deletes the old settings object
    m_renderer->setSettings(Q_NULLPTR);
}

} // namespace Render
} // namespace Qt3DRender

QT_END_NAMESPACE