/****************************************************************************
**
** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
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#include <QtTest/QTest>
#include <Qt3DAnimation/qcallbackmapping.h>
#include <Qt3DAnimation/private/qcallbackmapping_p.h>
#include <Qt3DAnimation/private/qchannelmappingcreatedchange_p.h>
#include <Qt3DCore/qentity.h>
#include <Qt3DCore/qnodecreatedchange.h>
#include <Qt3DCore/private/qnodecreatedchangegenerator_p.h>
#include <QObject>
#include <QSignalSpy>
#include <testpostmanarbiter.h>

class DummyCallback : public Qt3DAnimation::QAnimationCallback
{
public:
    void valueChanged(const QVariant &) override { }
};

class tst_QCallbackMapping : public QObject
{
    Q_OBJECT

private Q_SLOTS:
    void checkDefaultConstruction()
    {
        // GIVEN
        Qt3DAnimation::QCallbackMapping mapping;

        // THEN
        QCOMPARE(mapping.channelName(), QString());
        QCOMPARE(mapping.callback(), static_cast<Qt3DAnimation::QAnimationCallback *>(nullptr));
    }

    void checkPropertyChanges()
    {
        // GIVEN
        Qt3DAnimation::QCallbackMapping mapping;

        {
            // WHEN
            QSignalSpy spy(&mapping, SIGNAL(channelNameChanged(QString)));
            const QString newValue(QStringLiteral("Rotation"));
            mapping.setChannelName(newValue);

            // THEN
            QVERIFY(spy.isValid());
            QCOMPARE(mapping.channelName(), newValue);
            QCOMPARE(spy.count(), 1);

            // WHEN
            spy.clear();
            mapping.setChannelName(newValue);

            // THEN
            QCOMPARE(mapping.channelName(), newValue);
            QCOMPARE(spy.count(), 0);
        }

        {
            // WHEN
            auto newValue = new DummyCallback();
            mapping.setCallback(QVariant::Quaternion, newValue);

            // THEN - no signals for callback
            QCOMPARE(mapping.callback(), newValue);
        }
    }

    void checkCreationData()
    {
        // GIVEN
        Qt3DAnimation::QCallbackMapping mapping;
        auto callback = new DummyCallback();

        mapping.setChannelName(QStringLiteral("Location"));
        mapping.setCallback(QVariant::Vector3D, callback);

        // WHEN
        QVector<Qt3DCore::QNodeCreatedChangeBasePtr> creationChanges;

        {
            Qt3DCore::QNodeCreatedChangeGenerator creationChangeGenerator(&mapping);
            creationChanges = creationChangeGenerator.creationChanges();
        }

        // THEN
        {
            QCOMPARE(creationChanges.size(), 1);

            const auto creationChangeData = qSharedPointerCast<Qt3DAnimation::QChannelMappingCreatedChange<Qt3DAnimation::QCallbackMappingData>>(creationChanges.first());
            const Qt3DAnimation::QCallbackMappingData data = creationChangeData->data;

            QCOMPARE(mapping.id(), creationChangeData->subjectId());
            QCOMPARE(mapping.isEnabled(), true);
            QCOMPARE(mapping.isEnabled(), creationChangeData->isNodeEnabled());
            QCOMPARE(mapping.metaObject(), creationChangeData->metaObject());
            QCOMPARE(creationChangeData->type(), Qt3DAnimation::QChannelMappingCreatedChangeBase::CallbackMapping);
            QCOMPARE(mapping.channelName(), data.channelName);
            QCOMPARE(mapping.callback(), data.callback);
            QCOMPARE(int(QVariant::Vector3D), data.type);
        }

        // WHEN
        mapping.setEnabled(false);

        {
            Qt3DCore::QNodeCreatedChangeGenerator creationChangeGenerator(&mapping);
            creationChanges = creationChangeGenerator.creationChanges();
        }

        // THEN
        {
            QCOMPARE(creationChanges.size(), 1);

            const auto creationChangeData = qSharedPointerCast<Qt3DAnimation::QChannelMappingCreatedChange<Qt3DAnimation::QCallbackMappingData>>(creationChanges.first());
            const Qt3DAnimation::QCallbackMappingData data = creationChangeData->data;

            QCOMPARE(mapping.id(), creationChangeData->subjectId());
            QCOMPARE(mapping.isEnabled(), false);
            QCOMPARE(mapping.isEnabled(), creationChangeData->isNodeEnabled());
            QCOMPARE(mapping.metaObject(), creationChangeData->metaObject());
            QCOMPARE(creationChangeData->type(), Qt3DAnimation::QChannelMappingCreatedChangeBase::CallbackMapping);
            QCOMPARE(mapping.channelName(), data.channelName);
            QCOMPARE(mapping.callback(), data.callback);
            QCOMPARE(QVariant::Vector3D, data.type);
        }
    }

    void checkPropertyUpdateChanges()
    {
        // GIVEN
        TestArbiter arbiter;
        Qt3DAnimation::QCallbackMapping mapping;
        arbiter.setArbiterOnNode(&mapping);

        {
            // WHEN
            mapping.setChannelName(QStringLiteral("Scale"));

            // THEN
            QCOMPARE(arbiter.dirtyNodes.size(), 1);
            QCOMPARE(arbiter.dirtyNodes.front(), &mapping);

            arbiter.dirtyNodes.clear();

            // WHEN
            mapping.setChannelName(QStringLiteral("Scale"));

            // THEN
            QCOMPARE(arbiter.dirtyNodes.size(), 0);
        }

        {
            // WHEN
            auto callback = new DummyCallback();
            mapping.setCallback(QVariant::Vector3D, callback, Qt3DAnimation::QAnimationCallback::OnThreadPool);
            QCoreApplication::processEvents();

            // THEN
            QCOMPARE(arbiter.events.size(), 0);
            QCOMPARE(arbiter.dirtyNodes.size(), 1);
            QCOMPARE(arbiter.dirtyNodes.front(), &mapping);

            arbiter.dirtyNodes.clear();

            // WHEN
            mapping.setCallback(QVariant::Vector3D, callback, Qt3DAnimation::QAnimationCallback::OnThreadPool);
            QCoreApplication::processEvents();

            // THEN
            QCOMPARE(arbiter.events.size(), 0);
            QCOMPARE(arbiter.dirtyNodes.size(), 0);
        }
    }
};

QTEST_MAIN(tst_QCallbackMapping)

#include "tst_qcallbackmapping.moc"