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#include "genericdevicebackendnode_p.h"
#include "inputhandler_p.h"
#include "inputmanagers_p.h"

#include <Qt3DCore/qpropertyupdatedchange.h>
#include <Qt3DInput/qabstractphysicaldevice.h>

QT_BEGIN_NAMESPACE

namespace Qt3DInput {
namespace Input {

GenericDeviceBackendNode::GenericDeviceBackendNode(QBackendNode::Mode mode)
    : QAbstractPhysicalDeviceBackendNode(mode)
    , m_mutex()
{
}

GenericDeviceBackendNode::~GenericDeviceBackendNode()
{
}

void GenericDeviceBackendNode::sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e)
{
    Qt3DCore::QPropertyUpdatedChangePtr propertyChange = qSharedPointerCast<Qt3DCore::QPropertyUpdatedChange>(e);
    if (e->type() == Qt3DCore::PropertyUpdated) {
        if (propertyChange->propertyName() == QByteArrayLiteral("axisEvent")) {
            QPair<int, qreal> val = propertyChange->value().value<QPair<int, qreal>>();
            const QMutexLocker lock(&m_mutex);
            m_axesValues[val.first] = val.second;
        } else if (propertyChange->propertyName() == QByteArrayLiteral("buttonEvent")) {
            QPair<int, qreal> val = propertyChange->value().value<QPair<int, qreal>>();
            const QMutexLocker lock(&m_mutex);
            m_buttonsValues[val.first] = val.second;
        }
    }
}

void GenericDeviceBackendNode::cleanup()
{
    const QMutexLocker lock(&m_mutex);
    m_axesValues.clear();
    m_buttonsValues.clear();
    QAbstractPhysicalDeviceBackendNode::cleanup();
}

float GenericDeviceBackendNode::axisValue(int axisIdentifier) const
{
    const QMutexLocker lock(&m_mutex);
    return m_axesValues[axisIdentifier];
}

bool GenericDeviceBackendNode::isButtonPressed(int buttonIdentifier) const
{
    const QMutexLocker lock(&m_mutex);
    return m_buttonsValues[buttonIdentifier];
}

GenericDeviceBackendFunctor::GenericDeviceBackendFunctor(QInputAspect *inputaspect, InputHandler *handler)
    : m_inputAspect(inputaspect)
    , m_handler(handler)
{
}

Qt3DCore::QBackendNode *GenericDeviceBackendFunctor::create(const Qt3DCore::QNodeCreatedChangeBasePtr &change) const
{
    GenericDeviceBackendNode *backendNode = m_handler->genericDeviceBackendNodeManager()->getOrCreateResource(change->subjectId());
    backendNode->setInputAspect(m_inputAspect);
    m_handler->appendGenericDevice(m_handler->genericDeviceBackendNodeManager()->lookupHandle(change->subjectId()));
    return backendNode;
}

Qt3DCore::QBackendNode *GenericDeviceBackendFunctor::get(Qt3DCore::QNodeId id) const
{
    return m_handler->genericDeviceBackendNodeManager()->lookupResource(id);
}

void GenericDeviceBackendFunctor::destroy(Qt3DCore::QNodeId id) const
{
    m_handler->removeGenericDevice(m_handler->genericDeviceBackendNodeManager()->lookupHandle(id));
    m_handler->genericDeviceBackendNodeManager()->releaseResource(id);
}

} // namespace Input
} // namespace Qt3DInput

QT_END_NAMESPACE