/****************************************************************************
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** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
** Contact: https://www.qt.io/licensing/
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** 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
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#include <QtTest/QTest>
#include <qbackendnodetester.h>
#include <Qt3DCore/private/qnode_p.h>
#include <Qt3DCore/private/qscene_p.h>
#include <Qt3DCore/qpropertyupdatedchange.h>
#include <Qt3DCore/qpropertynodeaddedchange.h>
#include <Qt3DCore/qpropertynoderemovedchange.h>
#include <Qt3DInput/private/axis_p.h>
#include <Qt3DInput/private/qabstractaxisinput_p.h>
#include <Qt3DInput/QAnalogAxisInput>
#include <Qt3DInput/QAxis>
#include <Qt3DCore/private/qbackendnode_p.h>
#include "testpostmanarbiter.h"

class DummyAxisInput : public Qt3DInput::QAbstractAxisInput
{
    Q_OBJECT
public:
    DummyAxisInput(Qt3DCore::QNode *parent = nullptr)
        : Qt3DInput::QAbstractAxisInput(*new Qt3DInput::QAbstractAxisInputPrivate, parent)
    {}
};

class tst_Axis: public Qt3DCore::QBackendNodeTester
{
    Q_OBJECT

private Q_SLOTS:

    void checkPeerPropertyMirroring()
    {
        // GIVEN
        Qt3DInput::Input::Axis backendAxis;
        Qt3DInput::QAxis axis;
        Qt3DInput::QAnalogAxisInput axisInput;

        axis.addInput(&axisInput);

        // WHEN
        simulateInitialization(&axis, &backendAxis);

        // THEN
        QCOMPARE(backendAxis.peerId(), axis.id());
        QCOMPARE(backendAxis.isEnabled(), axis.isEnabled());
        QCOMPARE(backendAxis.inputs().size(), axis.inputs().size());

        const int inputsCount = backendAxis.inputs().size();
        if (inputsCount > 0) {
            for (int i = 0; i < inputsCount; ++i)
                QCOMPARE(backendAxis.inputs().at(i), axis.inputs().at(i)->id());
        }
    }

    void checkInitialAndCleanedUpState()
    {
        // GIVEN
        Qt3DInput::Input::Axis backendAxis;

        // THEN
        QVERIFY(backendAxis.peerId().isNull());
        QCOMPARE(backendAxis.axisValue(), 0.0f);
        QCOMPARE(backendAxis.isEnabled(), false);
        QCOMPARE(backendAxis.inputs().size(), 0);

        // GIVEN
        Qt3DInput::QAxis axis;
        Qt3DInput::QAnalogAxisInput axisInput;

        axis.addInput(&axisInput);

        // WHEN
        simulateInitialization(&axis, &backendAxis);
        backendAxis.setAxisValue(883.0f);
        backendAxis.cleanup();

        // THEN
        QCOMPARE(backendAxis.axisValue(), 0.0f);
        QCOMPARE(backendAxis.isEnabled(), false);
        QCOMPARE(backendAxis.inputs().size(), 0);
    }

    void checkPropertyChanges()
    {
        // GIVEN
        Qt3DInput::Input::Axis backendAxis;
        Qt3DCore::QPropertyUpdatedChangePtr updateChange;

        // WHEN
        updateChange = QSharedPointer<Qt3DCore::QPropertyUpdatedChange>::create(Qt3DCore::QNodeId());
        updateChange->setPropertyName("enabled");
        updateChange->setValue(true);
        backendAxis.sceneChangeEvent(updateChange);

        // THEN
        QCOMPARE(backendAxis.isEnabled(), true);

        // WHEN
        DummyAxisInput input;
        const Qt3DCore::QNodeId inputId = input.id();
        const auto nodeAddedChange = Qt3DCore::QPropertyNodeAddedChangePtr::create(Qt3DCore::QNodeId(), &input);
        nodeAddedChange->setPropertyName("input");
        backendAxis.sceneChangeEvent(nodeAddedChange);

        // THEN
        QCOMPARE(backendAxis.inputs().size(), 1);
        QCOMPARE(backendAxis.inputs().first(), inputId);

        // WHEN
        const auto nodeRemovedChange = Qt3DCore::QPropertyNodeRemovedChangePtr::create(Qt3DCore::QNodeId(), &input);
        nodeRemovedChange->setPropertyName("input");
        backendAxis.sceneChangeEvent(nodeRemovedChange);

        // THEN
        QCOMPARE(backendAxis.inputs().size(), 0);
    }

    void checkValuePropertyBackendNotification()
    {
        // GIVEN
        TestArbiter arbiter;
        Qt3DInput::Input::Axis backendAxis;
        backendAxis.setEnabled(true);
        Qt3DCore::QBackendNodePrivate::get(&backendAxis)->setArbiter(&arbiter);

        // WHEN
        backendAxis.setAxisValue(454.0f);

        // THEN
        QCOMPARE(backendAxis.axisValue(), 454.0f);
        QCOMPARE(arbiter.events.count(), 1);
        Qt3DCore::QPropertyUpdatedChangePtr change = arbiter.events.first().staticCast<Qt3DCore::QPropertyUpdatedChange>();
        QCOMPARE(change->propertyName(), "value");
        QCOMPARE(change->value().toFloat(), backendAxis.axisValue());

        arbiter.events.clear();

        // WHEN
        backendAxis.setAxisValue(454.0f);

        // THEN
        QCOMPARE(backendAxis.axisValue(), 454.0f);
        QCOMPARE(arbiter.events.count(), 0);

        arbiter.events.clear();

    }

    void shouldNotChangeValueWhenDisabled()
    {
        // GIVEN
        TestArbiter arbiter;
        Qt3DInput::Input::Axis backendAxis;
        Qt3DCore::QBackendNodePrivate::get(&backendAxis)->setArbiter(&arbiter);
        backendAxis.setEnabled(false);

        // WHEN
        backendAxis.setAxisValue(454.0f);

        // THEN
        QCOMPARE(backendAxis.axisValue(), 0.0f);
        QCOMPARE(arbiter.events.count(), 0);
    }
};

QTEST_APPLESS_MAIN(tst_Axis)

#include "tst_axis.moc"