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#include "evaluateclipanimatorjob_p.h"
#include <Qt3DAnimation/private/handler_p.h>
#include <Qt3DAnimation/private/managers_p.h>
#include <Qt3DAnimation/private/animationlogging_p.h>
#include <Qt3DAnimation/private/animationutils_p.h>
#include <Qt3DAnimation/private/job_common_p.h>

QT_BEGIN_NAMESPACE

namespace Qt3DAnimation {
namespace Animation {

EvaluateClipAnimatorJob::EvaluateClipAnimatorJob()
    : Qt3DCore::QAspectJob()
    , m_currentGlobalTime(0.0)
    , m_lastGlobalTime(0.0)
{
    SET_JOB_RUN_STAT_TYPE(this, JobTypes::EvaluateClipAnimator, 0);
}

void EvaluateClipAnimatorJob::run()
{
    Q_ASSERT(m_handler);

    ClipAnimator *clipAnimator = m_handler->clipAnimatorManager()->data(m_clipAnimatorHandle);
    Q_ASSERT(clipAnimator);
    if (!clipAnimator->isRunning())
        return;

    qint64 globalTimeNS = m_handler->simulationTime();
    qint64 nsSincePreviousFrame = clipAnimator->nsSincePreviousFrame(globalTimeNS);

    Clock *clock = m_handler->clockManager()->lookupResource(clipAnimator->clockId());

    // Evaluate the fcurves
    AnimationClip *clip = m_handler->animationClipLoaderManager()->lookupResource(clipAnimator->clipId());
    Q_ASSERT(clip);
    // Prepare for evaluation (convert global time to local time ....)
    const AnimatorEvaluationData animatorEvaluationData = evaluationDataForAnimator(clipAnimator, clock, nsSincePreviousFrame);
    const ClipEvaluationData preEvaluationDataForClip = evaluationDataForClip(clip, animatorEvaluationData);
    const ClipResults rawClipResults = evaluateClipAtLocalTime(clip, preEvaluationDataForClip.localTime);

    // Reformat the clip results into the layout used by this animator/blend tree
    ComponentIndices format = clipAnimator->formatIndices();
    ClipResults formattedClipResults = formatClipResults(rawClipResults, format);

    if (preEvaluationDataForClip.isFinalFrame)
        clipAnimator->setRunning(false);

    clipAnimator->setCurrentLoop(preEvaluationDataForClip.currentLoop);
    clipAnimator->setLastGlobalTimeNS(globalTimeNS);
    clipAnimator->setLastLocalTime(preEvaluationDataForClip.localTime);

    // Prepare property changes (if finalFrame it also prepares the change for the running property for the frontend)
    const QVector<Qt3DCore::QSceneChangePtr> changes = preparePropertyChanges(clipAnimator->peerId(),
                                                                              clipAnimator->mappingData(),
                                                                              formattedClipResults,
                                                                              preEvaluationDataForClip.isFinalFrame);

    // Send the property changes
    clipAnimator->sendPropertyChanges(changes);

    // Trigger callbacks either on this thread or by notifying the gui thread.
    const QVector<AnimationCallbackAndValue> callbacks = prepareCallbacks(clipAnimator->mappingData(),
                                                                          formattedClipResults);
    clipAnimator->sendCallbacks(callbacks);
}

} // namespace Animation
} // namespace Qt3DAnimation

QT_END_NAMESPACE
