/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
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** This file is part of the Qt3D module of the Qt Toolkit.
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** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
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****************************************************************************/

#include <QGuiApplication>

#include <Qt3DCore/window.h>
#include <Qt3DCore/qcamera.h>
#include <Qt3DCore/qentity.h>
#include <Qt3DCore/qcameralens.h>

#include <Qt3DInput/QInputAspect>

#include <Qt3DRenderer/qcylindermesh.h>
#include <Qt3DRenderer/qmesh.h>
#include <Qt3DRenderer/qtechnique.h>
#include <Qt3DRenderer/qmaterial.h>
#include <Qt3DRenderer/qeffect.h>
#include <Qt3DRenderer/qtexture.h>
#include <Qt3DRenderer/qrenderpass.h>

#include <Qt3DCore/qscaletransform.h>
#include <Qt3DCore/qrotatetransform.h>
#include <Qt3DCore/qlookattransform.h>
#include <Qt3DCore/qtransform.h>
#include <Qt3DCore/qaspectengine.h>

#include <Qt3DRenderer/qrenderaspect.h>
#include <Qt3DRenderer/qframegraph.h>
#include <Qt3DRenderer/qforwardrenderer.h>

int main(int argc, char **argv)
{
    QGuiApplication app(argc, argv);

    Qt3D::Window view;
    Qt3D::QAspectEngine engine;
    engine.registerAspect(new Qt3D::QRenderAspect());
    Qt3D::QInputAspect *input = new Qt3D::QInputAspect;
    engine.registerAspect(input);
    engine.initialize();
    QVariantMap data;
    data.insert(QStringLiteral("surface"), QVariant::fromValue(static_cast<QSurface *>(&view)));
    data.insert(QStringLiteral("eventSource"), QVariant::fromValue(&view));
    engine.setData(data);

    // Root entity
    Qt3D::QEntity *rootEntity = new Qt3D::QEntity();

    // Camera
    Qt3D::QCamera *cameraEntity = new Qt3D::QCamera(rootEntity);
    cameraEntity->setObjectName(QStringLiteral("cameraEntity"));

    cameraEntity->lens()->setPerspectiveProjection(45.0f, 16.0f/9.0f, 0.1f, 1000.0f);
    cameraEntity->setPosition(QVector3D(0, 0, -20.0f));
    cameraEntity->setUpVector(QVector3D(0, 1, 0));
    cameraEntity->setViewCenter(QVector3D(0, 0, 0));
    input->setCamera(cameraEntity);

    // FrameGraph
    Qt3D::QFrameGraph *frameGraph = new Qt3D::QFrameGraph();
    Qt3D::QForwardRenderer * forwardRenderer = new Qt3D::QForwardRenderer();

    // TechiqueFilter and renderPassFilter are not implement yet
    forwardRenderer->setCamera(cameraEntity);
    forwardRenderer->setClearColor(Qt::black);

    frameGraph->setActiveFrameGraph(forwardRenderer);


    // Cylinder shape data
    Qt3D::QCylinderMesh *cylinder = new Qt3D::QCylinderMesh();
    cylinder->setRadius(1);
    cylinder->setLength(3);
    cylinder->setRings(100);
    cylinder->setSlices(20);

    // CylinderMesh Transform
    Qt3D::QScaleTransform *cylinderScale = new Qt3D::QScaleTransform();
    Qt3D::QRotateTransform *cylinderRotation = new Qt3D::QRotateTransform();
    Qt3D::QTransform *cylinderTransforms = new Qt3D::QTransform();

    cylinderScale->setScale3D(QVector3D(1.5f, 1.5f, 1.5f));
    cylinderRotation->setAngleDeg(45.0f);
    cylinderRotation->setAxis(QVector3D(1, 0, 0));

    cylinderTransforms->addTransform(cylinderScale);
    cylinderTransforms->addTransform(cylinderRotation);

    // Cylinder
    Qt3D::QEntity *cylinderEntity = new Qt3D::QEntity(rootEntity);
    cylinderEntity->addComponent(cylinder);
    cylinderEntity->addComponent(cylinderTransforms);

    // Setting the FrameGraph
    rootEntity->addComponent(frameGraph);

    // Set root object of the scene
    engine.setRootEntity(rootEntity);
    // Show window
    view.show();

    return app.exec();
}