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#include <QtTest/QTest>
#include <Qt3DCore/private/qnode_p.h>
#include <Qt3DCore/private/qscene_p.h>

#include <Qt3DRenderer/qsortcriterion.h>

#include "testpostmanarbiter.h"

// We need to call QNode::clone which is protected
// So we sublcass QNode instead of QObject
class tst_QSortCriterion: public Qt3DCore::QNode
{
    Q_OBJECT
public:
    ~tst_QSortCriterion()
    {
        QNode::cleanup();
    }

private Q_SLOTS:

    void checkCloning_data()
    {
        QTest::addColumn<Qt3DRender::QSortCriterion *>("sortCriterion");
        QTest::addColumn<Qt3DRender::QSortCriterion::SortType>("sortType");

        Qt3DRender::QSortCriterion *defaultConstructed = new Qt3DRender::QSortCriterion();
        QTest::newRow("defaultConstructed") << defaultConstructed << Qt3DRender::QSortCriterion::StateChangeCost;

        Qt3DRender::QSortCriterion *backToFrontSort = new Qt3DRender::QSortCriterion();
        backToFrontSort->setSort(Qt3DRender::QSortCriterion::BackToFront);
        QTest::newRow("backToFrontSort") << backToFrontSort << Qt3DRender::QSortCriterion::BackToFront;

        Qt3DRender::QSortCriterion *materialSort = new Qt3DRender::QSortCriterion();
        materialSort->setSort(Qt3DRender::QSortCriterion::Material);
        QTest::newRow("materialSort") << materialSort << Qt3DRender::QSortCriterion::Material;
    }

    void checkCloning()
    {
        // GIVEN
        QFETCH(Qt3DRender::QSortCriterion *, sortCriterion);
        QFETCH(Qt3DRender::QSortCriterion::SortType, sortType);

        // THEN
        QCOMPARE(sortCriterion->sort(), sortType);

        // WHEN
        Qt3DRender::QSortCriterion *clone = static_cast<Qt3DRender::QSortCriterion *>(QNode::clone(sortCriterion));

        // THEN
        QVERIFY(clone != Q_NULLPTR);
        QCOMPARE(sortCriterion->id(), clone->id());
        QCOMPARE(sortCriterion->sort(), clone->sort());

        delete sortCriterion;
        delete clone;
    }

    void checkPropertyUpdates()
    {
        // GIVEN
        QScopedPointer<Qt3DRender::QSortCriterion> sortCriterion(new Qt3DRender::QSortCriterion());
        TestArbiter arbiter(sortCriterion.data());

        // WHEN
        sortCriterion->setSort(Qt3DRender::QSortCriterion::BackToFront);
        QCoreApplication::processEvents();

        // THEN
        QCOMPARE(arbiter.events.size(), 1);
        Qt3DCore::QScenePropertyChangePtr change = arbiter.events.first().staticCast<Qt3DCore::QScenePropertyChange>();
        QCOMPARE(change->propertyName(), "sort");
        QCOMPARE(change->subjectId(), sortCriterion->id());
        QCOMPARE(change->value().value<Qt3DRender::QSortCriterion::SortType>(), Qt3DRender::QSortCriterion::BackToFront);
        QCOMPARE(change->type(), Qt3DCore::NodeUpdated);

        arbiter.events.clear();

        // WHEN
        sortCriterion->setSort(Qt3DRender::QSortCriterion::BackToFront);
        QCoreApplication::processEvents();

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

        // WHEN
        sortCriterion->setSort(Qt3DRender::QSortCriterion::Material);
        QCoreApplication::processEvents();

        // THEN
        QCOMPARE(arbiter.events.size(), 1);
        change = arbiter.events.first().staticCast<Qt3DCore::QScenePropertyChange>();
        QCOMPARE(change->propertyName(), "sort");
        QCOMPARE(change->subjectId(), sortCriterion->id());
        QCOMPARE(change->value().value<Qt3DRender::QSortCriterion::SortType>(), Qt3DRender::QSortCriterion::Material);
        QCOMPARE(change->type(), Qt3DCore::NodeUpdated);

        arbiter.events.clear();
    }

protected:
    Qt3DCore::QNode *doClone() const Q_DECL_OVERRIDE
    {
        return Q_NULLPTR;
    }

};

QTEST_MAIN(tst_QSortCriterion)

#include "tst_qsortcriterion.moc"