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#include "additiveclipblend_p.h"
#include <Qt3DAnimation/qclipblendnodecreatedchange.h>
#include <Qt3DAnimation/qadditiveclipblend.h>
#include <Qt3DAnimation/private/qadditiveclipblend_p.h>
#include <Qt3DCore/qpropertyupdatedchange.h>

QT_BEGIN_NAMESPACE

namespace Qt3DAnimation {

namespace Animation {

AdditiveClipBlend::AdditiveClipBlend()
    : ClipBlendNode(ClipBlendNode::AdditiveBlendType)
    , m_baseClipId()
    , m_additiveClipId()
    , m_additiveFactor(0.0f)
{
}

AdditiveClipBlend::~AdditiveClipBlend()
{
}

void AdditiveClipBlend::sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e)
{
    if (e->type() == Qt3DCore::PropertyUpdated) {
        Qt3DCore::QPropertyUpdatedChangePtr change = qSharedPointerCast<Qt3DCore::QPropertyUpdatedChange>(e);
        if (change->propertyName() == QByteArrayLiteral("additiveFactor"))
            m_additiveFactor = change->value().toFloat();
        else if (change->propertyName() == QByteArrayLiteral("baseClip"))
            m_baseClipId = change->value().value<Qt3DCore::QNodeId>();
        else if (change->propertyName() == QByteArrayLiteral("additiveClip"))
            m_additiveClipId = change->value().value<Qt3DCore::QNodeId>();
    }
}

ClipResults AdditiveClipBlend::doBlend(const QVector<ClipResults> &blendData) const
{
    Q_ASSERT(blendData.size() == 2);
    Q_ASSERT(blendData[0].size() == blendData[1].size());
    const int elementCount = blendData.first().size();
    ClipResults blendResults(elementCount);

    for (int i = 0; i < elementCount; ++i)
        blendResults[i] = blendData[0][i] + m_additiveFactor * blendData[1][i];

    return blendResults;
}

void AdditiveClipBlend::initializeFromPeer(const Qt3DCore::QNodeCreatedChangeBasePtr &change)
{
    ClipBlendNode::initializeFromPeer(change);
    const auto creationChangeData = qSharedPointerCast<Qt3DAnimation::QClipBlendNodeCreatedChange<Qt3DAnimation::QAdditiveClipBlendData>>(change);
    const Qt3DAnimation::QAdditiveClipBlendData cloneData = creationChangeData->data;
    m_baseClipId = cloneData.baseClipId;
    m_additiveClipId = cloneData.additiveClipId;
    m_additiveFactor = cloneData.additiveFactor;
}

} // Animation

} // Qt3DAnimation

QT_END_NAMESPACE