/**
  * @RDE_HEADER@
  * Interface-Implementation of LayerFactory
  * $Id$
  * $HeadURL$
  * $Author$
  */

// Own
#include "layer_factory_impl.h"
#include "map_impl.h"
#include "abstract_map_object_impl.h"
#include <Map/situation_map_utils.h>
#include "logical_layer.h"
#include "location_to_elevation_helper.h"
//#include "tms_layer.h"
#include <Common/resource_path.h>   // for getResourcePath
#include <SymbologyImpl/symbol_dictionary_impl.h>

#include <ElevationMap/elevation_map_manager.h>

// ESRI
#include <arcgis/arcgisversion.h>    // This file is created by RME, not ESRI
#include <arcgis/Map.h>
#include <arcgis/Layer.h>
#include <arcgis/TileCache.h>
#include <arcgis/ArcGISTiledLayer.h>
#include <arcgis/Raster.h>
#include <arcgis/RasterLayer.h>
#include <arcgis/Scene.h>
#include <arcgis/ArcGISSceneLayer.h>
#include <arcgis/RasterElevationSource.h>
#include <arcgis/ArcGISTiledElevationSource.h>
#include <arcgis/GraphicsOverlay.h>
#include <arcgis/MapGraphicsView.h>
#include <arcgis/SimpleFillSymbol.h>
#include <arcgis/SimpleMarkerSymbol.h>
#include <arcgis/PictureMarkerSymbol.h>
#include <arcgis/SimpleMarkerSceneSymbol.h>
#include <arcgis/UniqueValueRenderer.h>

#include <arcgis/ArcGISVectorTiledLayer.h>
#include <arcgis/ArcGISMapImageLayer.h>


// Qt
#include <QDir>
#include <QEventLoop>
#include <QFileInfo>
#include <QNetworkProxy>
#include <QVector>
#include <QCoreApplication>

#include <iostream>

// FORCE_CREATION_GRAPHICSOVERLAY :
// N.Thoden, 10.02.2017
// Esri Case #01887547 - [BOS] Dictionary Symbol crasches
// deals with order of creation of GraphicalOverlay and adding them to MapView.
// Although the reordering of the GraphicalOverlay is not included in the case,
// it seems to be relevant in this application.
// To find a quick solution, GraphicalOverlays are created as soon as possible
// (EsriDict must be loaded).
//
static bool s_forceCreationOfGraphicsOverlay = true;
// : FORCE_CREATION_GRAPHICSOVERLAY


namespace SituationMap
{

static const QLatin1String LayerNameJumpPoints("JumpPoints");
static const QLatin1String LayerNameRubberband("RubberbandLayer");
static const QLatin1String LayerNameTools("Tools");
static const QLatin1String LayerNameSnapshotOverlay("SnaphotOverlay");
static const QLatin1String LayerNameEmergencyCall("EmergencyCall");

// #define USE_ARCGIS_SCENE_LAYER_CACHE
#ifdef USE_ARCGIS_SCENE_LAYER_CACHE

class ArcGISSceneLayerCache;
static ArcGISSceneLayerCache *s_arcGisSceneLayerCache = nullptr;

/*!
 * \brief The ArcGISSceneLayerCache class reduces the number of loading processes
 * We are caching here to avoid numerous loading and unloading.
 * At least at linux the ArcGISSceneLayerCache tends to alloc a hugh amount of data.
 * Additionally allocation is influenced by the viewpoint choosen by the operator.
 * And with other allocations (dds data, GBViewer of similar) at the same time
 * the heap memory gets fragemented.
 * So we try to reduce the number of loading processes.
 */
class ArcGISSceneLayerCache
{
public:
  static ArcGISSceneLayerCache *getInstance()
  {
    if (!s_arcGisSceneLayerCache)
    {
      s_arcGisSceneLayerCache = new ArcGISSceneLayerCache;
      qAddPostRoutine(&ArcGISSceneLayerCache::cleanup);
    }
    return s_arcGisSceneLayerCache;
  }

  struct Item
  {
    QPointer<Esri::ArcGISRuntime::ArcGISSceneLayer> m_sceneLayer;
    QPointer<Esri::ArcGISRuntime::Scene>            m_hostingScene;
  };

  Item& getFreeItemRef(const QString &itemName)
  {
    //Qt: If the map contains no item with key key, the function inserts a default-constructed value into the map with key key, and returns a reference to it.
    QVector<Item> &vec = m_arcGISSceneLayerCache[itemName];

    // search free item:
    QMutableVectorIterator<Item> it(vec);
    while (it.hasNext())
    {
      Item& itemRef = it.next();
      if (itemRef.m_hostingScene.isNull())
        return itemRef;
    }

    // Not found -> create:
    vec.append(Item());
    return vec.last();
  }

  static void cleanup()
  {
    delete s_arcGisSceneLayerCache;
  }

  ~ArcGISSceneLayerCache()
  {
    for (auto vec : m_arcGISSceneLayerCache)
    {
      for (auto item : vec)
      {
        std::cerr << " m_arcGISSceneLayerCache: delete " << item.m_sceneLayer << std::endl;
        delete item.m_sceneLayer; // delete nullptr is ok
      }
    }
  }

  void dump()
  {
    std::cerr << " ArcGISSceneLayer CacheSize = " << m_arcGISSceneLayerCache.size() << std::endl;

    for (auto vec : m_arcGISSceneLayerCache)
    {
      std::cerr << " ArcGISSceneLayer VectorSize: " << vec.size() << std::endl;
      for (auto item : vec)
      {
        std::cerr << " ArcGISSceneLayer ITEM = "
                  <<  " m_hostingScene=" << item.m_hostingScene
                  <<  " m_sceneLayer=" << item.m_sceneLayer
                  << std::endl;
      } // for
    } // for
  }

private:
  //   slpk-name, ....
  QMap<QString, QVector<Item>> m_arcGISSceneLayerCache;
}; // class ArcGISSceneLayerCache

#endif //  USE_ARCGIS_SCENE_LAYER_CACHE


class LayerFactoryImpl::Private
{
public:
  Private()     = default;
  ~Private()    = default;


  // ESRI data:
  Esri::ArcGISRuntime::Basemap                 *m_basemap = nullptr;

  Esri::ArcGISRuntime::GraphicsOverlayListModel *getEsriGraphicsOverlayListModel()
  {
    if (m_mapImpl && m_mapImpl->getEsriGeoView())
      return m_mapImpl->getEsriGeoView()->graphicsOverlays();
    else
      return nullptr;
  }


  Esri::ArcGISRuntime::GraphicsOverlay         *m_functionDialogGraphicsLayer     = nullptr;


  // Own data:
  SituationMap::MapImpl                        *m_mapImpl = nullptr;
  QStringList                                   m_mapServiceUrlList;
  QVector<QUrl>                                 m_sceneObjectUrlCont;
  Esri::ArcGISRuntime::Surface                 *m_baseSurface = nullptr;
  bool                                          m_isSceneObjectLayerVisible = true;

  QTimer                                        *reCalculateMinMaxScaleTimer = nullptr;

  MapLayerOrderedList                           m_orderedMapLayer;  // store order of basemap and logical Layernames

  bool hasLogicalLayer(const QString &logicalName)
  {
    return m_logicalLayerCont.contains(logicalName);
  }

  // create and initalize LogicalLayer:
  void createLogicalLayer(const QString &logicalName)
  {
    // LayerListModel
    Esri::ArcGISRuntime::LayerListModel *layerListModel = nullptr;
    if (m_basemap)
      layerListModel = m_basemap->baseLayers();

    // GraphicsOverlayListModel
    Esri::ArcGISRuntime::GraphicsOverlayListModel *graphicsOverlayListModel = this->getEsriGraphicsOverlayListModel();

#ifdef LTS_DEBUG
    if (!graphicsOverlayListModel)
      qCritical() << " graphicsOverlayListModel"
                  << " logicalName='" << logicalName << "'"
                  << " m_mapImpl=" << m_mapImpl
                  << " m_mapImpl->getEsriGeoView()=" << m_mapImpl->getEsriGeoView()
                  << " m_mapImpl->isReady=" << m_mapImpl->isReady()
                  << " graphicsOverlayListModel=" << graphicsOverlayListModel;
    Q_ASSERT(graphicsOverlayListModel);
#endif // LTS_DEBUG

    QSharedPointer<LogicalLayer> ll = QSharedPointer<LogicalLayer>(new LogicalLayer(logicalName));
    ll->init(m_mapImpl, layerListModel, graphicsOverlayListModel);
    m_logicalLayerCont[logicalName] = ll;
  }

  QSharedPointer<LogicalLayer> getLogicalLayer(const QString &logicalName) const
  {
    if (m_logicalLayerCont.contains(logicalName))
      return m_logicalLayerCont[logicalName];
    return QSharedPointer<LogicalLayer>();
  }
  void removeLogicalLayer(const QString &logicalName)
  {
    m_logicalLayerCont.remove(logicalName);
  }

  QMap<QString, QSharedPointer<LogicalLayer>>   m_logicalLayerCont; // store logical layer without order

  QString                                       m_basemapLayernamePrefix = QLatin1String("ArcGISTiledLayer_URL_");

  QString                                       m_participantLayername              = QLatin1String("Participants");
  RenderingMode                                 m_participantLayerRenderingMode     = RenderingMode::Dynamic;
  SurfacePlacement                              m_participantLayerSurfacePlacement  = SurfacePlacement::Relative;


  QString                                       m_logicalLayerNameForCubes;

#if ACRGIS_VERSION < 0x640500 // 100.5.0 / Update 5
  QColor                                        m_selectionColor = Qt::magenta;
#endif // ACRGIS_VERSION


}; // class LayerFactoryImpl::Private
//-----------------------------------------------------------------------------

//
// class LayerFactoryImpl;
//
LayerFactoryImpl::LayerFactoryImpl(QObject *parent, SituationMap::MapImpl *mapImpl)
  : LayerFactory()
  , BaseClass(parent)
  , m_logger(getLogger("LayerFactoryImpl"))
  , d(new Private)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";

  d->m_mapImpl = mapImpl;
  if (d->m_mapImpl)
    d->m_basemap = d->m_mapImpl->getEsriBasemap();

  d->reCalculateMinMaxScaleTimer = new QTimer(this);
  d->reCalculateMinMaxScaleTimer->setInterval(500);
  d->reCalculateMinMaxScaleTimer->setSingleShot(true);
  connect(d->reCalculateMinMaxScaleTimer, &QTimer::timeout,
          this, &LayerFactoryImpl::reCalculateMinMaxScaleBasedOnLayers);

  INFO_LOG(m_logger) << LOGFUNCTION << " Resource Path = '" << SituationMap::getResourcePath() << "'";

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
}


LayerFactoryImpl::~LayerFactoryImpl()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";
  delete d;
  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
}

bool LayerFactoryImpl::initializeBasemapBuiltIn(const QString &tpkFile)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " tpkFile='" << tpkFile << "'";

  QString tiledBaseMapLayer;
  if (tpkFile.isEmpty())
    tiledBaseMapLayer = SituationMap::getResourcePath() + QLatin1String("Topographic.tpk");
  else
  {
    QFileInfo fi(tpkFile);
    if (fi.isAbsolute())
      tiledBaseMapLayer = tpkFile;
    else
    {
      tiledBaseMapLayer = SituationMap::getResourcePath() + tpkFile;
      if (fi.suffix().isEmpty())
        tiledBaseMapLayer += QLatin1String(".tpk");
    }
  }

  DEBUG_LOG(m_logger) << LOGFUNCTION << " tiledBaseMapLayer='" << tiledBaseMapLayer << "'";

  //-----------------------------------
  // Local Tiled Basemap Layer using: sdk/samples/data/tpks/Topographic.tpk
  //-----------------------------------
  Esri::ArcGISRuntime::TileCache *tpkCache          = new Esri::ArcGISRuntime::TileCache(tiledBaseMapLayer, this);
  tpkCache->setObjectName(QLatin1String("TPK-tpkCache"));

  Esri::ArcGISRuntime::ArcGISTiledLayer *tiledLayer = new Esri::ArcGISRuntime::ArcGISTiledLayer(tpkCache, this);
  tiledLayer->setName(QLatin1String("TPK-tiledLayer"));


  // loadStatusChanged ->
  connect(tpkCache, &Esri::ArcGISRuntime::TileCache::loadStatusChanged, this, [this](Esri::ArcGISRuntime::LoadStatus loadStatus)
  {
    DEBUG_LOG(m_logger) << LOGFUNCTION << " TileCache: " << "loadStatus changed to: " << loadStatus;
  });
  connect(tiledLayer, &Esri::ArcGISRuntime::ArcGISTiledLayer::loadStatusChanged, this, [this](Esri::ArcGISRuntime::LoadStatus loadStatus)
  {
    DEBUG_LOG(m_logger) << LOGFUNCTION << " ArcGISTiledLayer: " << "loadStatus changed to: " << loadStatus;
  });


  QString logicalLayerName = QStringLiteral("%1%2").arg(d->m_basemapLayernamePrefix).arg(0);
  tiledLayer->setName(logicalLayerName);
  tiledLayer->setObjectName(tiledLayer->name());

  QSharedPointer<LogicalLayer> logicalLayer = addLayerToMgnt(logicalLayerName, LayerType::Basemap);
  if (logicalLayer.isNull())
    ERROR_LOG(m_logger) << LOGFUNCTION << " getLogicalLayer invalid'" << logicalLayerName << "'";
  else
  {
    // update LayerParameter first:
    LayerParameter lp = logicalLayer->layerParameter();
    lp.url         = QUrl(tiledBaseMapLayer);
    lp.displayName = logicalLayerName;
    logicalLayer->setLayerParameter(lp);

    logicalLayer->setLayer(tiledLayer);
    logicalLayer->setLayerType(LayerType::Basemap);
    logicalLayer->setBasemapType(BasemapType::Topographic);  // basemapType -> aerial, topo...
  }


  int basemapCount = -1;
  if (d->m_basemap->baseLayers())
    basemapCount = d->m_basemap->baseLayers()->size();

  INFO_LOG(m_logger) << LOGFUNCTION << " basemapCount = " << basemapCount;

  d->m_basemap->baseLayers()->append(tiledLayer);

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return true;
}

bool LayerFactoryImpl::isUsingBaseMapBuiltIn() const
{
  return d->m_mapServiceUrlList.isEmpty();
}

bool LayerFactoryImpl::addOperationalLayer(const QString &logicalLayerName,
                                           const QString &displayName,
                                           RenderingMode renderMode,
                                           SurfacePlacement surfacePlacement)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " logicalLayerName='" << logicalLayerName << "'"
                      << " displayName='" << displayName << "'"
                      << " renderMode=" << renderMode
                      << " surfacePlacement=" << surfacePlacement;

  if (s_forceCreationOfGraphicsOverlay && !logicalLayerName.startsWith(QLatin1String("Participant"), Qt::CaseInsensitive))
  {
    // First, wait until esriDict is load, second force creation of esriLayer:

    // wait until esriDict is load:
    AdvancedSymbology::SymbolDictionary     &dict     = d->m_mapImpl->symbolDictionary();
    AdvancedSymbology::SymbolDictionaryImpl &dictImpl = static_cast<AdvancedSymbology::SymbolDictionaryImpl &>(dict);

    // keep SymbologyType::None in mind:
    Esri::ArcGISRuntime::DictionarySymbolStyle *esriDict = const_cast<Esri::ArcGISRuntime::DictionarySymbolStyle *>(dictImpl.getEsriSymbolDictionary());

    if (esriDict)
    {
      if (esriDict->loadStatus() != Esri::ArcGISRuntime::LoadStatus::Loaded)
      {
        QEventLoop loop;
        connect(esriDict, &Esri::ArcGISRuntime::DictionarySymbolStyle::doneLoading,
                &loop, &QEventLoop::quit);
        QTimer::singleShot(2000, &loop, &QEventLoop::quit);
        loop.exec();
      }

      DEBUG_LOG(m_logger) << LOGFUNCTION << " FORCE_CREATION_GRAPHICSOVERLAY: "
                          << " esriDict: loadStatus=" << esriDict->loadStatus();
    }
  } // if (s_forceCreationOfGraphicsOverlay)

  const LayerType layerType = LayerType::Operational;

  if (! layerExistsInMngt(logicalLayerName, layerType))
  {
    QSharedPointer<LogicalLayer> logicalLayer = addLayerToMgnt(logicalLayerName, layerType);
    if (logicalLayer.isNull())
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << " addLayer failed: '"
                          << logicalLayerName << "'";
      return false;
    }
    LayerParameter lp = logicalLayer->layerParameter();
    lp.displayName = displayName;
    logicalLayer->setLayerParameter(lp);
    logicalLayer->setRenderingMode(renderMode);
    logicalLayer->setSurfacePlacement(surfacePlacement);
  }


  //
  // the real Esri-Layers will be create later on demand :-)
  //

  //#ifdef FORCE_CREATION_GRAPHICSOVERLAY
  if (s_forceCreationOfGraphicsOverlay && !logicalLayerName.startsWith(QLatin1String("Participant"), Qt::CaseInsensitive))
  {
    QSharedPointer<LogicalLayer> logicalLayer = d->getLogicalLayer(logicalLayerName);
    if (logicalLayer)
    {
      logicalLayer->getCreateGraphicalOverlay(TechnicalLayerType::GraphicsLayer);
      if (d->m_mapImpl->symbologyType() != AdvancedSymbology::SymbologyType::None)
        logicalLayer->getCreateGraphicalOverlay(TechnicalLayerType::GraphicsLayer_Dict);
      DEBUG_LOG(m_logger) << LOGFUNCTION << " FORCE_CREATION_GRAPHICSOVERLAY";
    }
  } // if (s_forceCreationOfGraphicsOverlay)
  //#endif // FORCE_CREATION_GRAPHICSOVERLAY


  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " logicalLayerName='" << logicalLayerName << "'"
                      << " success=" << true;
  return true;
}


bool LayerFactoryImpl::removeOperationalLayer(const QString &logicalLayerName)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " logicalLayerName='" << logicalLayerName << "'";

  if (logicalLayerName.isEmpty())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " logicalLayerName empty"
                        << logicalLayerName;
    return false;
  }

  const LayerType layerType = LayerType::Operational;

  if (! d->m_orderedMapLayer.contains(logicalLayerName, layerType))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " logicalLayerName does not exist: '"
                        << logicalLayerName << "'";
    return false;
  }

  if (removeLayerInternal(layerType, logicalLayerName))
    d->m_mapImpl->emitLayerOrderChanged();


  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " logicalLayerName='" << logicalLayerName << "'";
  return true;
}

bool LayerFactoryImpl::hasOperationalLayer(const QString &logicalLayerName) const
{
  if (logicalLayerName.isEmpty())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " logicalLayerName empty"
                        << logicalLayerName;
    return false;
  }
  return layerExistsInMngt(logicalLayerName, LayerType::Operational);
}


bool LayerFactoryImpl::addOverlayLayer(const QString &logicalLayerName, const QString &displayName, bool isSnaphot)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " logicalLayerName='" << logicalLayerName << "'"
                      << " displayName='" << displayName << "'"
                      << " isSnaphot='" << isSnaphot;

  const LayerType layerType = (isSnaphot) ? LayerType::SnapshotOverlay : LayerType::Overlay;

  if (! layerExistsInMngt(logicalLayerName, layerType))
  {
    QSharedPointer<LogicalLayer> logicalLayer = addLayerToMgnt(logicalLayerName, layerType);
    if (logicalLayer.isNull())
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << " addLayer failed: '"
                          << logicalLayerName << "'";
      return false;
    }
    // logicalLayer->setRenderingMode(RenderingMode::Dynamic);
  }

  // update displayName:
  QSharedPointer<LogicalLayer> logicalLayer = d->getLogicalLayer(logicalLayerName);
  if (logicalLayer.isNull())
  {
    WARNING_LOG(m_logger) << LOGFUNCTION << " getLogicalLayer failed: '"
                          << logicalLayerName << "'";
  } else {
    LayerParameter lp = logicalLayer->layerParameter();
    lp.displayName = displayName;
    logicalLayer->setLayerParameter(lp);
  }


  //
  // the real Esri-Layers will be create later on demand :-)
  //

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return true;
}

QString LayerFactoryImpl::technicalNameOfOverlayLayer(const QString &logicalLayerName)
{
  // By default, our overlays are displayed on just one GraphicsLayer:
  return createInternalLayerName(TechnicalLayerType::GraphicsLayer, logicalLayerName);
}


QSharedPointer<LogicalLayer> LayerFactoryImpl::addLayerToMgnt(const QString &logicalLayerName, const LayerType &layerType)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " layerType=" << layerType
                      << " logicalLayerName='" << logicalLayerName << "'";

  QSharedPointer<LogicalLayer> logicalLayer;

  if (logicalLayerName.isEmpty())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " logicalLayerName empty"
                        << logicalLayerName;
    return logicalLayer;
  }
  if (d->m_orderedMapLayer.contains(logicalLayerName, LayerType::Undefined))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " logicalLayerName already exists: '"
                        << logicalLayerName << "'";
    return logicalLayer;
  }

  // 1. add to orderedList:

  if (! d->m_orderedMapLayer.addLayer(logicalLayerName, layerType))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " addLayer failed: '"
                        << logicalLayerName << "'"
                        << " layerType=" << layerType;
    return logicalLayer;
  }

  // getLogicalLayer will
  // - initialize
  // - do errorHandling
  // - update LayerParameter on doneLoading
  // - and add layer to LayerlistModel of basemap:
  logicalLayer = this->getCreateLogicalLayer(logicalLayerName);
  if (logicalLayer.isNull())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION
                        << " getLogicalLayer invalid'" << logicalLayerName << "'";
    return logicalLayer;
  }
  logicalLayer->setLayerType(layerType);


  DEBUG_LOG(m_logger) << LOGFUNCTION << " handleEmergencySpecials ...";
  handleEmergencyCallSpecials();
  DEBUG_LOG(m_logger) << LOGFUNCTION << " handleEmergencySpecials ...DONE";

  // trigger gui update:
  d->m_mapImpl->emitLayerOrderChanged();

  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " layerType=" << layerType
                      << " logicalLayerName='" << logicalLayerName << "'";
  return logicalLayer;
}

bool LayerFactoryImpl::layerExistsInMngt(const QString &logicalLayerName, const LayerType &layerType) const
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " layerType=" << layerType
                      << " logicalLayerName='" << logicalLayerName << "'";

  bool exists = d->m_orderedMapLayer.contains(logicalLayerName, layerType);

  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " layerType=" << layerType
                      << " logicalLayerName='" << logicalLayerName << "'"
                      << " exists=" << exists;
  return exists;
}

bool LayerFactoryImpl::removeOverlayLayer(const QString &logicalLayerName)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " layername='" << logicalLayerName << "'";

  if (logicalLayerName.isEmpty())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " logicalLayerName empty"
                        << logicalLayerName;
    return false;
  }
  const MapLayer &mapLayer = d->m_orderedMapLayer.getLayer(logicalLayerName);
  if (!mapLayer.isValid())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " logicalLayerName does not exist: '"
                        << logicalLayerName << "'";
    return false;
  }

  const LayerType type = mapLayer.type();
  const bool isOverlayLayer = (type == LayerType::Overlay) || (type == LayerType::SnapshotOverlay);
  if (!isOverlayLayer)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " logicalLayerName has wrong type: '"
                        << logicalLayerName << "'"
                        << " type = " << type;
    return false;
  }

  if (removeLayerInternal(type, logicalLayerName))
  {
    DEBUG_LOG(m_logger) << LOGFUNCTION << " remove..."
                        << " layername='" << logicalLayerName << "'";
    d->m_mapImpl->emitLayerOrderChanged();
  }


  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " logicalLayerName='" << logicalLayerName << "'";
  return true;
}

QString LayerFactoryImpl::snapshotOverlayLayername() const
{
  return LayerNameSnapshotOverlay;
}

QString LayerFactoryImpl::layernameForCubes() const
{
  return d->m_logicalLayerNameForCubes;
}

void LayerFactoryImpl::setLayernameForCubes(const QString &logicalName)
{
  d->m_logicalLayerNameForCubes = logicalName;
}

bool LayerFactoryImpl::hasLayernameForCubes() const
{
  return !d->m_logicalLayerNameForCubes.isEmpty();
}


bool LayerFactoryImpl::assignUniqueValueRendererForCubes()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " m_logicalLayerNameForCubes='" << d->m_logicalLayerNameForCubes << "'";

  if (d->m_mapImpl->mode() != Mode::Mode_3D)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " not in 3Dmode";
    return false;
  }

  if (d->m_logicalLayerNameForCubes.isEmpty())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no m_logicalLayerNameForCubes configured";
    return false;
  }



  Esri::ArcGISRuntime::GraphicsOverlay *graphicsOverlay = this->getGraphicsLayer(d->m_logicalLayerNameForCubes);
  if (!graphicsOverlay)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " graphicsOverlay not found, d->m_logicalLayerNameForCubes='" << d->m_logicalLayerNameForCubes << "'";
    return false;
  }


  const PartyIdToColorFunctor::ColorMap &colorMap = d->m_mapImpl->partyIdToColorFunctor().colorMap();
  if (colorMap.isEmpty())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " colorMap is empty";
    return false;
  }



  // prepare UniqueValues
  Esri::ArcGISRuntime::SimpleFillSymbol *sls;
  QList<Esri::ArcGISRuntime::UniqueValue *> uvList;

  QObject *parent = graphicsOverlay;

  for (const PartyIdToColorFunctor::PartyData &partyData : colorMap)
  {
    const QString &partyName = partyData.m_name;
    const QColor &partyColor = partyData.m_color;

    INFO_LOG(m_logger) << LOGFUNCTION
                       << " partyName=" << partyName << "'"
                       << " partyColor=" << partyColor.name() << "'";

    sls = new Esri::ArcGISRuntime::SimpleFillSymbol(Esri::ArcGISRuntime::SimpleFillSymbolStyle::Solid, partyColor, parent);

    Esri::ArcGISRuntime::UniqueValue *uv =
        new Esri::ArcGISRuntime::UniqueValue(partyName, // more or less relevant
                                             QStringLiteral("Party '%1'").arg(partyName),
                                             QVariantList() << partyColor.name(),  // (was in former times: partyName)
                                             sls, parent);
    uvList.append(uv);
  } // for

  //qt build in
 // static QVector<QColor> addColors = {Qt::darkGray, Qt::gray, Qt::lightGray,
  //                                    Qt::red, Qt::green, Qt::blue,
  //                                    Qt::cyan, Qt::magenta, Qt::yellow,
  //                                    Qt::darkRed, Qt::darkGreen, Qt::darkBlue,
  //                                    Qt::darkCyan, Qt::darkMagenta, Qt::darkYellow, Qt::white};
  static QVector<QColor> addColors = {
    Qt::yellow
  };
  uvList.reserve(uvList.size() + addColors.size());

  for (const QColor &addColor : qAsConst(addColors))
  {
    sls = new Esri::ArcGISRuntime::SimpleFillSymbol(Esri::ArcGISRuntime::SimpleFillSymbolStyle::Solid, addColor.name(), parent);

    Esri::ArcGISRuntime::UniqueValue *uv =
        new Esri::ArcGISRuntime::UniqueValue(addColor.name(), // more or less relevant
                                             QStringLiteral("Party '%1'").arg(addColor.name()),
                                             QVariantList() << addColor.name(),  // (was in former times: partyName)
                                             sls, parent);
    uvList.append(uv);
  } //for

  // setup UniqueValueRenderer:

  // setup default:
  sls = new Esri::ArcGISRuntime::SimpleFillSymbol(Esri::ArcGISRuntime::SimpleFillSymbolStyle::Solid, Qt::white, this);


  Esri::ArcGISRuntime::UniqueValueRenderer *uniqueRenderer =
      new Esri::ArcGISRuntime::UniqueValueRenderer(QStringLiteral("UnknownParty"),
                                                   sls,                             // default
                                                   QStringList() << QStringLiteral("Extrusion_Color"), // fieldNames (was in former times: "PartyName")
                                                   uvList, parent);
  static long s_counter = 0;
  uniqueRenderer->setObjectName(QStringLiteral("UniqueValueRenderer_ForCubes_%1").arg(s_counter++));
  connect(uniqueRenderer, &Esri::ArcGISRuntime::UniqueValueRenderer::errorOccurred, this, [this] (const Esri::ArcGISRuntime::Error &error)
  {
    FATAL_LOG(m_logger) << LOGFUNCTION << " ---EsriError--- assignUniqueValueRendererForCubes occured: ";
    FATAL_LOG(m_logger) << LOGFUNCTION << " ---EsriError--- occured: " << error;
  });
  connect(uniqueRenderer, &Esri::ArcGISRuntime::UniqueValueRenderer::destroyed, this, [this, uniqueRenderer] () {
    INFO_LOG(m_logger) << " UniqueValueRenderer is destroyed , objectName='" <<  uniqueRenderer->objectName() << "'";
  });


  // set sceneProperties:
  Esri::ArcGISRuntime::RendererSceneProperties props = uniqueRenderer->sceneProperties();
  props.setExtrusionMode(Esri::ArcGISRuntime::ExtrusionMode::AbsoluteHeight); // see BuildingOwnership::retrieveBuildingAbsHeight
  props.setExtrusionExpression(QStringLiteral("[height]"));                  // <-- keyword
  uniqueRenderer->setSceneProperties(props);


  // take care that the old one is deleted:
  Esri::ArcGISRuntime::Renderer *oldRenderer = graphicsOverlay->renderer();
  delete oldRenderer; // delete nullptr is safe!

  // assign new:
  graphicsOverlay->setRenderer(uniqueRenderer);

  return true;
}

bool LayerFactoryImpl::assignUniqueValueRenderer(const QString &layername,
                                                 const QString &fieldName,
                                                 const QVector<UniqueValueData> &uvDataCont)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START, layername='" <<  layername << "'"
                      << ", fieldName='" <<  fieldName << "'"
                      << ", uvDataCont.size()=" <<  uvDataCont.size();

  // ensure existence:
  getCreateLogicalLayer(layername);

  Esri::ArcGISRuntime::GraphicsOverlay *graphicsOverlay = this->getGraphicsLayer(layername);
  if (!graphicsOverlay)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " graphicsOverlay not found, layername='" << layername << "'";
    return false;
  }


  // prepare UniqueValues
  Esri::ArcGISRuntime::PictureMarkerSymbol *pms;
  QList<Esri::ArcGISRuntime::UniqueValue *> uvList;
  QObject *parent = graphicsOverlay;

  for (const UniqueValueData &uvData : qAsConst(uvDataCont))
  {
    INFO_LOG(m_logger) << LOGFUNCTION
                       << " uvData.value=" << uvData.value << "'";

    pms = new Esri::ArcGISRuntime::PictureMarkerSymbol(uvData.img, parent);

    Esri::ArcGISRuntime::UniqueValue *uv =
        new Esri::ArcGISRuntime::UniqueValue(uvData.value,
                                             QStringLiteral("GenericUniqueValue '%1'").arg(uvData.value),
                                             QVariantList() << uvData.value, pms, parent);
    uvList.append(uv);
  } // for

  // setup default:
  Esri::ArcGISRuntime::SimpleMarkerSymbol *sms;
  sms = new Esri::ArcGISRuntime::SimpleMarkerSymbol(Esri::ArcGISRuntime::SimpleMarkerSymbolStyle::X, Qt::white, 5, parent);

  // Finally, setup Renderer:
  Esri::ArcGISRuntime::UniqueValueRenderer* uniqueRenderer =
      new Esri::ArcGISRuntime::UniqueValueRenderer(QStringLiteral("GenericUniqueValueRenderer"),
                                                   sms,  // default
                                                   QStringList() << fieldName,
                                                   uvList, parent);
  static long s_counter = 0;
  uniqueRenderer->setObjectName(QStringLiteral("UniqueValueRenderer_assignUniqueValueRenderer_%1").arg(s_counter++));
  connect(uniqueRenderer, &Esri::ArcGISRuntime::UniqueValueRenderer::errorOccurred, this, [this] (const Esri::ArcGISRuntime::Error &error)
  {
    FATAL_LOG(m_logger) << LOGFUNCTION << " ---EsriError--- assignUniqueValueRenderer occured: ";
    FATAL_LOG(m_logger) << LOGFUNCTION << " ---EsriError--- occured: " << error;
  });
  connect(uniqueRenderer, &Esri::ArcGISRuntime::UniqueValueRenderer::destroyed, this, [this, uniqueRenderer] () {
    INFO_LOG(m_logger) << " UniqueValueRenderer is destroyed , objectName='" <<  uniqueRenderer->objectName() << "'";
  });

  // take care that the old one is deleted:
  Esri::ArcGISRuntime::Renderer *oldRenderer = graphicsOverlay->renderer();
  delete oldRenderer; // delete nullptr is safe!

  // assign new:
  graphicsOverlay->setRenderer(uniqueRenderer);

  TRACE_LOG(m_logger) << LOGFUNCTION << " END, layername='" <<  layername << "'"
                      << ", fieldName='" <<  fieldName << "'"
                      << ", uvDataCont.size()=" <<  uvDataCont.size();
  return true;
}

bool LayerFactoryImpl::assignUniqueValueRendererAesCentral(const QString &layername,
                                                           const QStringList &fieldNames,
                                                           const QVector<UniqueValueDataAesCentral> &uvDataCont)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START, layername='" <<  layername << "'"
                      << ", fieldNames='" <<  fieldNames.join(QStringLiteral(";")) << "'"
                      << ", uvDataCont.size()=" <<  uvDataCont.size();

  // ensure existence:
  getCreateLogicalLayer(layername);

  Esri::ArcGISRuntime::GraphicsOverlay *graphicsOverlay = this->getGraphicsLayer(layername);
  if (!graphicsOverlay)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " graphicsOverlay not found, layername='" << layername << "'";
    return false;
  }

  // prepare UniqueValues
  QList<Esri::ArcGISRuntime::UniqueValue *> uvList;
  QObject *parent = graphicsOverlay;
  for (const UniqueValueDataAesCentral &uvData : qAsConst(uvDataCont))
  {
    INFO_LOG(m_logger) << LOGFUNCTION
//                       << " uvData.value=" << uvData.values << "'"
                       << ", type " << toString(uvData.type)
                       << ", col " << uvData.col
                       << ", col.name " << uvData.col.name()
                       << ", uvData.radius " << uvData.radius;
    Esri::ArcGISRuntime::SimpleMarkerSceneSymbol *symbol = nullptr;

    switch (uvData.type) {
    case UniqueValueDataAesCentral::TYPE::CONE:
      symbol = Esri::ArcGISRuntime::SimpleMarkerSceneSymbol::cone(uvData.col,
                                                                  // extent should be similar to sphere
                                                                  uvData.radius, // V100.8: cone: diameter is interpreted as radius
                                                                  uvData.height,
                                                                  parent);
      symbol->setAnchorPosition(Esri::ArcGISRuntime::SceneSymbolAnchorPosition::Top);
      break;
    case UniqueValueDataAesCentral::TYPE::SPHERE:
      symbol = Esri::ArcGISRuntime::SimpleMarkerSceneSymbol::sphere(uvData.col,
                                                                    uvData.radius*2.0, // diameter
                                                                    parent);
      symbol->setAnchorPosition(Esri::ArcGISRuntime::SceneSymbolAnchorPosition::Center);
    default:
      break;
    }

    Esri::ArcGISRuntime::UniqueValue *uv =
        new Esri::ArcGISRuntime::UniqueValue(QStringLiteral("uvData.value"),
                                             QStringLiteral("AesCentralUniqueValue '%%%1'"),
                                             uvData.values, symbol, parent);
    uvList.append(uv);
  } // for

  // setup default:
  Esri::ArcGISRuntime::SimpleMarkerSymbol *sms;
  sms = new Esri::ArcGISRuntime::SimpleMarkerSymbol(Esri::ArcGISRuntime::SimpleMarkerSymbolStyle::X, Qt::white, 25, parent);

  // Finally, setup Renderer:
  Esri::ArcGISRuntime::UniqueValueRenderer* uniqueRenderer =
      new Esri::ArcGISRuntime::UniqueValueRenderer(QStringLiteral("AesCentralUniqueValueRenderer"),
                                                   sms,  // default
                                                   fieldNames,
                                                   uvList, parent);
  static long s_counter = 0;
  uniqueRenderer->setObjectName(QStringLiteral("UniqueValueRenderer_assignUniqueValueRendererAesCentral_%1").arg(s_counter++));
  connect(uniqueRenderer, &Esri::ArcGISRuntime::UniqueValueRenderer::errorOccurred, this, [this] (const Esri::ArcGISRuntime::Error &error)
  {
    FATAL_LOG(m_logger) << LOGFUNCTION << " ---EsriError--- UniqueValueRendererAesCentral occured: ";
    FATAL_LOG(m_logger) << LOGFUNCTION << " ---EsriError--- occured: " << error;
  });
  connect(uniqueRenderer, &Esri::ArcGISRuntime::UniqueValueRenderer::destroyed, this, [this, uniqueRenderer] () {
    INFO_LOG(m_logger) << " UniqueValueRenderer is destroyed , objectName='" <<  uniqueRenderer->objectName() << "'";
  });

  // setup SceneProperties
  Esri::ArcGISRuntime::RendererSceneProperties sceneProps;
  sceneProps.setHeadingExpression(QStringLiteral("[HEADING]")); // Expression with "[]", later on without "[]"
  sceneProps.setPitchExpression(QStringLiteral("[PITCH]"));     // Expression with "[]", later on without "[]"
  sceneProps.setRollExpression(QStringLiteral("[ROLL]"));       // Expression with "[]", later on without "[]"
  uniqueRenderer->setSceneProperties(sceneProps);

  // take care that the old one is deleted:
  Esri::ArcGISRuntime::Renderer *oldRenderer = graphicsOverlay->renderer();
  delete oldRenderer; // delete nullptr is safe!

  // assign new:
  graphicsOverlay->setRenderer(uniqueRenderer);

  TRACE_LOG(m_logger) << LOGFUNCTION << " END, layername='" <<  layername << "'"
                      << ", fieldNames='" <<  fieldNames.join(QStringLiteral(";")) << "'"
                      << ", uvDataCont.size()=" <<  uvDataCont.size();
  return true;
}

bool LayerFactoryImpl::assignUniqueValueRendererAesCentral3DExtrusion(const QString &layername,
                                                                      const QStringList &fieldNames,
                                                                      const QVector<LayerFactory::UniqueValueDataAesCentral> &uvDataCont)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START, layername='" <<  layername << "'"
                      << ", fieldNames='" <<  fieldNames.join(QStringLiteral(";")) << "'"
                      << ", uvDataCont.size()=" <<  uvDataCont.size();

  // ensure existence:
  getCreateLogicalLayer(layername);

  Esri::ArcGISRuntime::GraphicsOverlay *graphicsOverlay = this->getGraphicsLayer3DExtrusion(layername);
  if (!graphicsOverlay)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " graphicsOverlay not found, layername='" << layername << "'";
    return false;
  }

  // prepare UniqueValues
  QList<Esri::ArcGISRuntime::UniqueValue *> uvList;
  QObject *parent = graphicsOverlay;
  for (const UniqueValueDataAesCentral &uvData : qAsConst(uvDataCont))
  {
    INFO_LOG(m_logger) << LOGFUNCTION
//                       << " uvData.value=" << uvData.values << "'"
                       << ", type " << toString(uvData.type)
                       << ", col " << uvData.col
                       << ", col.name " << uvData.col.name()
                       << ", uvData.radius " << uvData.radius;

    Esri::ArcGISRuntime::SimpleFillSymbol *symbol =
      new Esri::ArcGISRuntime::SimpleFillSymbol(Esri::ArcGISRuntime::SimpleFillSymbolStyle::Solid, uvData.col, parent);

    Esri::ArcGISRuntime::UniqueValue *uv =
        new Esri::ArcGISRuntime::UniqueValue(uvData.label,
                                             QString(QStringLiteral("Description '%1'")).arg(uvData.col.name()),
                                             uvData.values, symbol, parent);
    uvList.append(uv);
  } // for

  // setup default:
  Esri::ArcGISRuntime::SimpleFillSymbol *defaultSymbol =
    new Esri::ArcGISRuntime::SimpleFillSymbol(Esri::ArcGISRuntime::SimpleFillSymbolStyle::Solid, Qt::white, parent);

  // Finally, setup Renderer:
  Esri::ArcGISRuntime::UniqueValueRenderer* uniqueRenderer =
      new Esri::ArcGISRuntime::UniqueValueRenderer(QStringLiteral("assignUniqueValueRendererAesCentral3DUNKNOWN"),
                                                   defaultSymbol,  // default
                                                   fieldNames,
                                                   uvList, parent);
  static long s_counter = 0;
  uniqueRenderer->setObjectName(QStringLiteral("UniqueValueRenderer_assignUniqueValueRendererAesCentral3D_%1").arg(s_counter++));
  connect(uniqueRenderer, &Esri::ArcGISRuntime::UniqueValueRenderer::errorOccurred, this, [this] (const Esri::ArcGISRuntime::Error &error)
  {
    FATAL_LOG(m_logger) << LOGFUNCTION << " ---EsriError--- UniqueValueRendererAesCentral3DExtrusion occured: ";
    FATAL_LOG(m_logger) << LOGFUNCTION << " ---EsriError--- occured: " << error;
  });
  connect(uniqueRenderer, &Esri::ArcGISRuntime::UniqueValueRenderer::destroyed, this, [this, uniqueRenderer] () {
    INFO_LOG(m_logger) << " UniqueValueRenderer is destroyed , objectName='" <<  uniqueRenderer->objectName() << "'";
  });

  Esri::ArcGISRuntime::RendererSceneProperties props = uniqueRenderer->sceneProperties();
  props.setExtrusionMode(Esri::ArcGISRuntime::ExtrusionMode::BaseHeight);
  props.setExtrusionExpression(QStringLiteral("[height]"));                  // <-- keyword
  uniqueRenderer->setSceneProperties(props);

  // take care that the old one is deleted:
  Esri::ArcGISRuntime::Renderer *oldRenderer = graphicsOverlay->renderer();
  delete oldRenderer; // delete nullptr is safe!

  // assign new:
  graphicsOverlay->setRenderer(uniqueRenderer);

  TRACE_LOG(m_logger) << LOGFUNCTION << " END, layername='" <<  layername << "'"
                      << ", fieldNames='" <<  fieldNames.join(QStringLiteral(";")) << "'"
                      << ", uvDataCont.size()=" <<  uvDataCont.size();
  return true;
}

bool LayerFactoryImpl::initializeUnitTestLayer()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";

  QUrl mapUrl(QLatin1String("http://DOES_NOT_EXISTS"));        // wkid = 102100/3857

  this->addBasemap(QLatin1String("DummyLayerName"), mapUrl, BasemapType::Aerial);

  //-----------------------------------
  // Layer:
  //-----------------------------------

  QStringList layerNames;
  layerNames << QLatin1String("AES");
  layerNames << QLatin1String("Participants");
  bool success = true;
  for (const QString &layername : qAsConst(layerNames))
    if (!addOperationalLayer(layername, layername))
      success = false;

  if (!success)
    ERROR_LOG(m_logger) << LOGFUNCTION << " initializeOperationalLayers failed";

  //  enableFunctionDialog();

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return success;

}

bool LayerFactoryImpl::addBasemap(const QString &layername,
                                  const QUrl &mapServiceUrl,
                                  const BasemapType basemapType,
                                  const double minScale,
                                  const double maxScale,
                                  const QString &displayName,
                                  const QString &description,
                                  const QImage &previewImage)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " layername='" << layername << "'"
                      << " mapServiceUrl='" << mapServiceUrl.toString() << "'"
                      << " basemapType='" << basemapType << "'"
                      << " minScale='" << minScale << "'"
                      << " maxScale='" << maxScale << "'"
                      << " displayName='" << displayName << "'"
                      << " description='" << description << "'"
                      << " previewImage.isNull()=" << previewImage.isNull()
                      << " wkid=" << d->m_mapImpl->getEsriSpatialReference().wkid();

  bool success = addBasemapInternal(layername, mapServiceUrl, basemapType,
                                    minScale, maxScale,
                                    displayName, description);

  // reOrder
  success = success && reOrderLayer();

  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " layername='" << layername << "'"
                      << " mapServiceUrl='" << mapServiceUrl.toString() << "'"
                      << " displayName='" << displayName << "'"
                      << " success =" << success;
  return success;
}

bool LayerFactoryImpl::removeBasemap(const QString &layername)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " layername='" << layername << "'";
  if (!d->m_orderedMapLayer.contains(layername, LayerType::Basemap))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " layername='" << layername << "' not found";
    return false;
  }

  bool success = false;

  if (d->m_orderedMapLayer.removeLayer(layername) && d->m_basemap)
  {
    Esri::ArcGISRuntime::Layer *layer = this->getEsriBasemapLayer(layername);
    if (layer && d->m_basemap->baseLayers())
    {
      d->m_basemap->baseLayers()->removeOne(layer);
      success = true;
      INFO_LOG(m_logger) << LOGFUNCTION << " layer"
                         << " layername='" << layername << "' removed";

      d->m_mapImpl->emitLayerOrderChanged();
    }
    else
      ERROR_LOG(m_logger) << LOGFUNCTION << " layername='" << layername << "' can`t be found";
  }
  else
    ERROR_LOG(m_logger) << LOGFUNCTION << " layername='" << layername << "' can`t be removed";

  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " layername='" << layername << "'"
                      << " success='" << success << "'";
  return success;
}

Esri::ArcGISRuntime::Envelope LayerFactoryImpl::fullExtentOfBasemaps(double margin_zeroToOne) const
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";

  Esri::ArcGISRuntime::LayerListModel *model = d->m_basemap->baseLayers();
  if (!model || model->isEmpty())
    return Esri::ArcGISRuntime::Envelope();

  double xmin = std::numeric_limits<double>::max();
  double ymin = std::numeric_limits<double>::max();
  double xmax = std::numeric_limits<double>::lowest();
  double ymax = std::numeric_limits<double>::lowest();

  Esri::ArcGISRuntime::SpatialReference sr;

  for (int idx = 0; idx < model->size(); ++idx)
  {
    Esri::ArcGISRuntime::Layer *layer = model->at(idx);
    // 12.12.2018, N. Thoden, V100.4:
    // Do not call fullExtent if layer is not loaded.
    // Envelope contains nan and will not changed on further calls...
    if (!layer || (layer->loadStatus() != Esri::ArcGISRuntime::LoadStatus::Loaded))
      continue;

    const Esri::ArcGISRuntime::Envelope singleEnv = layer->fullExtent();

    DEBUG_LOG(m_logger) << LOGFUNCTION
                        << " layer->loadStatus()" << layer->loadStatus()
                        << ", singleEnv.toJson()" << singleEnv.toJson();

    sr = singleEnv.spatialReference();

    if (!std::isnan(singleEnv.xMin()))
      xmin = std::min(singleEnv.xMin(), xmin);
    if (!std::isnan(singleEnv.yMin()))
      ymin = std::min(singleEnv.yMin(), ymin);

    if (!std::isnan(singleEnv.xMax()))
      xmax = std::max(singleEnv.xMax(), xmax);
    if (!std::isnan(singleEnv.yMax()))
      ymax = std::max(singleEnv.yMax(), ymax);
  } // for

  if (qFuzzyCompare(xmin, std::numeric_limits<double>::max()) || sr.isEmpty())
    return Esri::ArcGISRuntime::Envelope();

  if (margin_zeroToOne < 0.0)
    margin_zeroToOne = 0.0;

  if (margin_zeroToOne > 1.0)
    margin_zeroToOne = 1.0;

  if (margin_zeroToOne > 0)
  {
    double width = xmax - xmin;
    double height = ymax - ymin;

    xmin -= width * margin_zeroToOne;
    xmax += width * margin_zeroToOne;

    ymin -= height * margin_zeroToOne;
    ymax += height * margin_zeroToOne;
  }

  DEBUG_LOG(m_logger) << LOGFUNCTION << " return.x " << xmin << " - " << xmax;
  DEBUG_LOG(m_logger) << LOGFUNCTION << " return.y " << ymin << " - " << ymax;

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return Esri::ArcGISRuntime::Envelope(xmin, ymin, xmax, ymax, sr);
}

bool LayerFactoryImpl::addSceneObjectLayer(const QString &layername, const QUrl &sceneLayerServiceUrl, const double altitudeOffset, const QString &displayName, const QString &description, const QImage &previewImage)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " layername='" << layername << "'"
                      << " sceneLayerServiceUrl='" << sceneLayerServiceUrl.toString() << "'"
                      << " altitudeOffset='" << altitudeOffset << "'"
                      << " displayName='" << displayName << "'"
                      << " description='" << description << "'"
                      << " previewImage.isNull()=" << previewImage.isNull();

  if (d->m_mapImpl->mode() != Mode::Mode_3D)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " not allowd in Mode3D";
    return false;
  }

  if (sceneLayerServiceUrl.isEmpty())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " sceneLayerServiceUrl empty, can not add layer";
    return false;
  }

  if (d->m_orderedMapLayer.contains(layername, LayerType::Undefined))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " layername '" << layername << "' already in use";
    return false;
  }

  //-----------------------------------
  // ArcGIS ArcGISSceneLayer
  //-----------------------------------
  //-----------------------------------------------------------------
  // Attention:
  // local    URLS -> do NOT specify any userCredentials (main)
  // external URLS -> DO specify userCredentials (main)
  //-----------------------------------------------------------------

  QUrl finalUrl = this->completeUrl(QLatin1String("SCENE_OBJ"),
                                    sceneLayerServiceUrl,
                                    QLatin1String("slpk/"));
  INFO_LOG(m_logger) << LOGFUNCTION << " SCENE_OBJ finalUrl '" << finalUrl.toString() << "'";

  Esri::ArcGISRuntime::Scene *esriScene = d->m_mapImpl->getEsriScene();

#ifdef USE_ARCGIS_SCENE_LAYER_CACHE
  ArcGISSceneLayerCache::Item& aslCacheItem = ArcGISSceneLayerCache::getInstance()->getFreeItemRef(sceneLayerServiceUrl.toString());

  if (m_logger.isInfoEnabled())
      ArcGISSceneLayerCache::getInstance()->dump();


  // const bool reUse = aslCacheItem.m_hostingScene.isNull() && aslCacheItem.m_sceneLayer;
  // aslCacheItem.m_hostingScene is always null. See getItemRef
  const bool reUse = aslCacheItem.m_sceneLayer;

  ERROR_LOG(m_logger) << LOGFUNCTION << " ArcGISSceneLayer -> reUse = "<< reUse
                      << " itemName = '" << sceneLayerServiceUrl.toString() << "'"
                      << " layername='" << layername << "'"
                      << " aslCacheItem.m_hostingScene.data() = " << aslCacheItem.m_hostingScene.data()
                      << " aslCacheItem.m_sceneLayer.data() = " << aslCacheItem.m_sceneLayer.data();

  Esri::ArcGISRuntime::ArcGISSceneLayer *sceneLayer = nullptr;

  if (!reUse)
  {
    INFO_LOG(m_logger) << LOGFUNCTION << " ArcGISSceneLayer -> CREATE"
                         << " (itemName = '" << sceneLayerServiceUrl.toString() << "', layername='" << layername << "')";

    sceneLayer = new Esri::ArcGISRuntime::ArcGISSceneLayer(finalUrl); // ArcGISSceneLayer should live longer than the scene: -> no parent here :-)
    sceneLayer->setName(layername);
    sceneLayer->setObjectName(sceneLayer->name());

    connect(sceneLayer, &Esri::ArcGISRuntime::ArcGISSceneLayer::errorOccurred, this, [this](const Esri::ArcGISRuntime::Error &error)
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << " ArcGISSceneLayer -> EsriError occured: " << error;
    });
    connect(sceneLayer, &Esri::ArcGISRuntime::ArcGISSceneLayer::doneLoading, this, [this]()
    {
      Esri::ArcGISRuntime::ArcGISSceneLayer *sceneLayer = qobject_cast<Esri::ArcGISRuntime::ArcGISSceneLayer *>(sender());
      if (!sceneLayer)
      {
        ERROR_LOG(m_logger) << LOGFUNCTION << " qobject_cast failed to get sender!?";
        return;
      }

      QString senderName = sceneLayer->objectName();
      INFO_LOG(m_logger) << LOGFUNCTION << " ArcGISSceneLayer -> doneLoading"
                         << " ,sendername= '" << senderName << "'"
                         << " ,URL= '" << sceneLayer->url().toString() << "'";
    });

    connect(sceneLayer, &Esri::ArcGISRuntime::ArcGISSceneLayer::destroyed, this, [this]()
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << " ArcGISSceneLayer -> destroyed";
    });

    aslCacheItem.m_hostingScene = esriScene;    // update cache
    aslCacheItem.m_sceneLayer   = sceneLayer;   // update cache

  } else {
    INFO_LOG(m_logger) << LOGFUNCTION << " ArcGISSceneLayer -> TAKE FROM STATIC"
                         << " (itemName = '" << sceneLayerServiceUrl.toString() << "', layername='" << layername << "')";

    aslCacheItem.m_hostingScene = esriScene;  // update cache
    sceneLayer = aslCacheItem.m_sceneLayer;
  }
#else
  Esri::ArcGISRuntime::ArcGISSceneLayer *sceneLayer = new Esri::ArcGISRuntime::ArcGISSceneLayer(finalUrl, d->m_mapImpl);
  sceneLayer->setName(layername);
  sceneLayer->setObjectName(sceneLayer->name());
  sceneLayer->setAltitudeOffset(altitudeOffset);

  connect(sceneLayer, &Esri::ArcGISRuntime::ArcGISSceneLayer::errorOccurred, this, [this](const Esri::ArcGISRuntime::Error &error)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " ArcGISSceneLayer -> EsriError occured: " << error;
  });
  connect(sceneLayer, &Esri::ArcGISRuntime::ArcGISSceneLayer::doneLoading, this, [this]()
  {
    Esri::ArcGISRuntime::ArcGISSceneLayer *sceneLayer = qobject_cast<Esri::ArcGISRuntime::ArcGISSceneLayer *>(sender());
    if (!sceneLayer)
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << " qobject_cast failed to get sender!?";
      return;
    }

    QString senderName = sceneLayer->objectName();
    DEBUG_LOG(m_logger) << LOGFUNCTION << " ArcGISSceneLayer -> doneLoading"
                       << " ,sendername= '" << senderName << "'"
                       << " ,URL= '" << sceneLayer->url().toString() << "'";
  });
#endif // USE_ARCGIS_SCENE_LAYER_CACHE


  if (esriScene)
  {
    esriScene->operationalLayers()->append(sceneLayer);
  }
  else
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no scene";
    return false;
  }

#ifdef USE_ARCGIS_SCENE_LAYER_CACHE
  if (m_logger.isInfoEnabled())
    ArcGISSceneLayerCache::getInstance()->dump();
#endif // USE_ARCGIS_SCENE_LAYER_CACHE

  d->m_sceneObjectUrlCont += sceneLayerServiceUrl;

  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " sceneLayerServiceUrl='" << sceneLayerServiceUrl.toString() << "'";
  return true;
}

bool LayerFactoryImpl::isSceneObjectLayerVisible() const
{
  return d->m_isSceneObjectLayerVisible;
}

void LayerFactoryImpl::setSceneObjectLayerVisible(bool visible)
{
  d->m_isSceneObjectLayerVisible = visible;

  if ( (!d->m_mapImpl) || d->m_mapImpl->mode() != Mode::Mode_3D)
    return;

  Esri::ArcGISRuntime::Scene *esriScene = d->m_mapImpl->getEsriScene();
  if (!esriScene)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no scene";
    return;
  }

  Esri::ArcGISRuntime::LayerListModel *layerListModel = esriScene->operationalLayers();
  if (!layerListModel)
    return;

  const int size = layerListModel->size();
  for (int idx=0; idx<size; ++idx)
  {
    Esri::ArcGISRuntime::Layer *objLayer = layerListModel->at(idx);
    if (!objLayer)
      continue;
    objLayer->setVisible(d->m_isSceneObjectLayerVisible);
  } // for



}

bool LayerFactoryImpl::initializeElevationSources(const QStringList &sceneElevationServiceUrls)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " sceneElevationServiceUrls='" << sceneElevationServiceUrls.join(QLatin1String(";")) << "'";

  const Mode mode = d->m_mapImpl->mode();

  switch (mode)
  {
  case Mode::Mode_2D:
    this->initializeElevationSources2D(sceneElevationServiceUrls);
    break;
  case Mode::Mode_3D:
    this->initializeElevationSources3D(sceneElevationServiceUrls);
    break;
  default:
    ERROR_LOG(m_logger) << LOGFUNCTION << " unknown mode";
    return false;
  } // switch

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return true;
}

bool LayerFactoryImpl::initializeElevationSources2D(const QStringList &sceneElevationServiceUrls)
{
  if (sceneElevationServiceUrls.isEmpty())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " sceneObjectServiceUrls is Empty";
    return false;
  }

  if (d->m_mapImpl->mode() != Mode::Mode_2D)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " wrong mode";
    return false;
  }

  //
  // append to 'own' esri (base) surface:
  //
  delete d->m_baseSurface;
  d->m_baseSurface = new Esri::ArcGISRuntime::Surface(this);
  d->m_baseSurface->setName(QLatin1String("BaseSurface2D"));
  d->m_baseSurface->setObjectName(d->m_baseSurface->name());

  connect(d->m_baseSurface, &Esri::ArcGISRuntime::Surface::errorOccurred, this, &LayerFactoryImpl::onSurfaceErrorOccured2D, Qt::UniqueConnection);
  connect(d->m_baseSurface, &Esri::ArcGISRuntime::Surface::doneLoading, this, &LayerFactoryImpl::onSurfaceDoneLoading2D, Qt::UniqueConnection);

  const QList<Esri::ArcGISRuntime::ElevationSource*> &elevationSources =
      initializeElevationSourcesInternal(sceneElevationServiceUrls);

  for (auto elevationSource : qAsConst(elevationSources))
    d->m_baseSurface->elevationSources()->append(elevationSource);


  // trigger loading:
  // As Luke suggested: load surface if first elevation entry is loaded:
  // https://community.esri.com/thread/206757-elevation-in-2d
  if (!elevationSources.isEmpty())
  {
    Esri::ArcGISRuntime::ElevationSource* elevationSourcesFirst = elevationSources.first();
    if (elevationSourcesFirst)
    {
      connect(elevationSourcesFirst, &Esri::ArcGISRuntime::ElevationSource::doneLoading, this, [this](const Esri::ArcGISRuntime::Error&)
      {
        d->m_baseSurface->load();
      });
      elevationSourcesFirst->load();
    }
  }

  return true;
}

bool LayerFactoryImpl::initializeElevationSources3D(const QStringList &sceneElevationServiceUrls)
{
  if (sceneElevationServiceUrls.isEmpty())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " sceneObjectServiceUrls is Empty";
    return false;
  }

  if (d->m_mapImpl->mode() != Mode::Mode_3D)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " wrong mode";
    return false;
  }

  Esri::ArcGISRuntime::Scene *esriScene = d->m_mapImpl->getEsriScene();
  if (!esriScene)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no scene";
    return false;
  }

  if (!esriScene->baseSurface() || !esriScene->baseSurface()->elevationSources())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no ElevationSourceListModel";
    return false;
  }

  //
  // append to esri scene:
  //
  const QList<Esri::ArcGISRuntime::ElevationSource*> elevationSources =
      initializeElevationSourcesInternal(sceneElevationServiceUrls);

  for (auto item : elevationSources)
    esriScene->baseSurface()->elevationSources()->append(item);

  return true;
}

QList<Esri::ArcGISRuntime::ElevationSource*> LayerFactoryImpl::initializeElevationSourcesInternal(const QStringList &sceneElevationServiceUrls)
{
  if (sceneElevationServiceUrls.isEmpty())
    return {};

  Esri::ArcGISRuntime::RasterElevationSource* rasterElevationSource =
      initializeRasterElevationSourceInternal(sceneElevationServiceUrls);

  QList<Esri::ArcGISRuntime::ElevationSource*> elevationSources;
  elevationSources.append(rasterElevationSource);

  return elevationSources;
}

Esri::ArcGISRuntime::RasterElevationSource *LayerFactoryImpl::initializeRasterElevationSourceInternal(const QStringList &filePaths)
{
  DEBUG_LOG(m_logger) << LOGFUNCTION << " filePaths = " << filePaths.join(QStringLiteral(";")) << "'";

  QStringList absFilePaths_rough_to_fine;
  absFilePaths_rough_to_fine.reserve(filePaths.size());

  for (const QString &filePath : filePaths)
  {
    QUrl finalUrl = this->completeUrl(QLatin1String("ELEVATION"),
                                      QUrl(filePath),
                                      QLatin1String("elevation/"));

    INFO_LOG(m_logger) << LOGFUNCTION << " ELEVATION finalUrl '" << finalUrl.toString() << "'";
    absFilePaths_rough_to_fine.append(finalUrl.toLocalFile());
  } // for

  if (absFilePaths_rough_to_fine.isEmpty())
  {
    WARNING_LOG(m_logger) << LOGFUNCTION << " filePaths are empty!!!";
    return nullptr;
  }
  DEBUG_LOG(m_logger) << LOGFUNCTION << " absFilePaths_rough_to_fine = " << absFilePaths_rough_to_fine.join(QStringLiteral(";")) << "'";

  //
  // init ElevationMapManager
  //
  if (!d->m_mapImpl->getElevationMapManager())
  {
    if (!d->m_mapImpl->initElevationMapManager(absFilePaths_rough_to_fine))
      ERROR_LOG(m_logger) << LOGFUNCTION << " initElevationMapManager failed";
  }

  //
  // Esri::ArcGISRuntime::RasterElevationSource with several files
  //
  Esri::ArcGISRuntime::RasterElevationSource *rasterElevationSource =
      new Esri::ArcGISRuntime::RasterElevationSource(absFilePaths_rough_to_fine, this);

  const QString &elevationSourceName = QStringLiteral("RasterElevationSources_((%1))").arg(absFilePaths_rough_to_fine.size());
  rasterElevationSource->setName(elevationSourceName);
  rasterElevationSource->setObjectName(rasterElevationSource->name());

  // 2017-09-18; N.Thoden, V100.1:
  // Following message occures very often. Therefore don`t connect to errorOccurred
  // 'code=404 domain=0 extendedErrorType=0, message='Error transferring http://excgeo21.sl ..  - server replied: Not Found'
  connect(rasterElevationSource, &Esri::ArcGISRuntime::ElevationSource::errorOccurred, this, &LayerFactoryImpl::onElevationSourceErrorOccured);
  connect(rasterElevationSource, &Esri::ArcGISRuntime::ElevationSource::doneLoading,
          this, &LayerFactoryImpl::onElevationSourceDoneLoading);
  return rasterElevationSource;
}


void LayerFactoryImpl::setForceCreationOfGraphicsOverlay(bool onOff)
{
  s_forceCreationOfGraphicsOverlay = onOff;
}


QString LayerFactoryImpl::basemapLayernamePrefix() const
{
  return d->m_basemapLayernamePrefix;
}
void LayerFactoryImpl::setBasemapLayernamePrefix(const QString &basemapLayernamePrefix)
{
  d->m_basemapLayernamePrefix = basemapLayernamePrefix;
}

QString LayerFactoryImpl::participantLayername() const
{
  return d->m_participantLayername;
}
RenderingMode LayerFactoryImpl::participantLayerRenderingMode() const
{
  return d->m_participantLayerRenderingMode;
}
SurfacePlacement LayerFactoryImpl::participantLayerSurfacePlacement() const
{
  return d->m_participantLayerSurfacePlacement;
}

void LayerFactoryImpl::setParticipantLayer(const QString &participantLayername,
                                           RenderingMode renderingMode,
                                           SurfacePlacement surfacePlacement)
{
  d->m_participantLayername             = participantLayername;
  d->m_participantLayerRenderingMode    = renderingMode;
  d->m_participantLayerSurfacePlacement = surfacePlacement;
}

QString LayerFactoryImpl::jumpPointLayer()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";

  const QString &logicalLayerName = LayerNameJumpPoints;
  const LayerType layerType       = LayerType::JumpPoint;

  if (! layerExistsInMngt(logicalLayerName, layerType))
  {
    QSharedPointer<LogicalLayer> logicalLayer = addLayerToMgnt(logicalLayerName, layerType);
    if (logicalLayer.isNull())
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << " addLayer failed: '"
                          << logicalLayerName << "'";
      return QString();
    }
    LayerParameter lp = logicalLayer->layerParameter();
    lp.displayName = tr("JumpPoints");                // dt. Sprungmarken
    logicalLayer->setLayerParameter(lp);
  }


  //
  // the real Esri-Layers will be create later on demand :-)
  //

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return logicalLayerName; // == LayerNameJumpPoints;
}


bool LayerFactoryImpl::jumpPointLayerExists() const
{
  const QString &logicalLayerName = LayerNameJumpPoints;
  return (d->m_orderedMapLayer.contains(logicalLayerName, SituationMap::LayerType::JumpPoint));
}



QString LayerFactoryImpl::toolLayer()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";

  const QString &logicalLayerName = LayerNameTools;
  const LayerType layerType       = LayerType::Tools;

  if (! layerExistsInMngt(logicalLayerName, layerType))
  {
    QSharedPointer<LogicalLayer> logicalLayer = addLayerToMgnt(logicalLayerName, layerType);
    if (logicalLayer.isNull())
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << " addLayer failed: '"
                          << logicalLayerName << "'";
      return QString();
    }
    LayerParameter lp = logicalLayer->layerParameter();
    lp.displayName = tr("Tools");                           // dt. Werkzeuge (?)
    logicalLayer->setLayerParameter(lp);
  }

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";

  //
  // the real Esri-Layers will be create later on demand :-)
  //

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return logicalLayerName; // == LayerNameTools;
}

bool LayerFactoryImpl::toolLayerExists() const
{
  const QString &logicalLayerName = LayerNameTools;
  return (d->m_orderedMapLayer.contains(logicalLayerName, SituationMap::LayerType::Tools));
}


QString LayerFactoryImpl::rubberbandLayer() const
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";

  const QString &logicalLayerName = LayerNameRubberband;
  const LayerType layerType       = LayerType::Rubberband;

  if (! layerExistsInMngt(logicalLayerName, layerType))
  {
    LayerFactoryImpl *THIS = const_cast<LayerFactoryImpl *>(this);
    QSharedPointer<LogicalLayer> logicalLayer = THIS->addLayerToMgnt(logicalLayerName, layerType);
    if (logicalLayer.isNull())
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << " addLayer failed: '"
                          << logicalLayerName << "'";
      return QString();
    }
  }

  //
  // the real Esri-Layers will be create later on demand :-)
  //

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return logicalLayerName; // == LayerNameRubberband;
}
bool LayerFactoryImpl::rubberbandLayerExists() const
{
  const QString &logicalLayerName = LayerNameRubberband;
  return (d->m_orderedMapLayer.contains(logicalLayerName, SituationMap::LayerType::Rubberband));
}

QString LayerFactoryImpl::emergencyCallLayer(bool getJustTheName)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";
  const QString &logicalLayerName = LayerNameEmergencyCall;

  if (getJustTheName)
  {
    TRACE_LOG(m_logger) << LOGFUNCTION << " END";
    return logicalLayerName;
  }

  const LayerType layerType       = LayerType::EmergencyCall;

  if (! layerExistsInMngt(logicalLayerName, layerType))
  {
    QSharedPointer<LogicalLayer> logicalLayer = addLayerToMgnt(logicalLayerName, layerType);
    if (logicalLayer.isNull())
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << " addLayer failed: '"
                          << logicalLayerName << "'";
      return QString();
    }
    LayerParameter lp = logicalLayer->layerParameter();
    lp.displayName = tr("EmergencyCalls");                         // dt. Notrufe/SOS (?)
    logicalLayer->setLayerParameter(lp);
  }

  {
    Esri::ArcGISRuntime::GraphicsOverlay *graphicsOverlay = this->getGraphicsLayer(logicalLayerName);
    if (!graphicsOverlay)
    {
      FATAL_LOG(m_logger) << LOGFUNCTION << " graphicsOverlay not found, logicalLayerName'" << logicalLayerName<< "'";
      return QString();
    }
    // set SurfacePlacement // EmergencyCalls have a pin/needle
    Esri::ArcGISRuntime::LayerSceneProperties lsp = graphicsOverlay->sceneProperties();
    lsp.setSurfacePlacement(static_cast<Esri::ArcGISRuntime::SurfacePlacement>(Esri::ArcGISRuntime::SurfacePlacement::Relative));
    graphicsOverlay->setSceneProperties(lsp);
  }

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return logicalLayerName; // == LayerNameEmergencyCall;
}

bool LayerFactoryImpl::emergencyCallLayerExists() const
{
  const QString &emergencyCallLayername = LayerNameEmergencyCall;
  return (d->m_orderedMapLayer.contains(emergencyCallLayername, SituationMap::LayerType::EmergencyCall));
}

bool LayerFactoryImpl::switchEmergencyCallLayerOn()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";
  const QString &emergencyCallLayername = LayerNameEmergencyCall;

  if (!(d->m_orderedMapLayer.contains(emergencyCallLayername, SituationMap::LayerType::EmergencyCall)))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " EmergencyCallLayer does not exists, can´t be switched on.";
    TRACE_LOG(m_logger) << LOGFUNCTION << " END";
    return false;
  }

  LayerParameter lp = this->layerParameter(emergencyCallLayername);
  lp.visible = true;
  lp.opacity = 100;
  lp.minScale = -1;
  lp.maxScale = -1;

  const bool success = this->setLayerParameter(emergencyCallLayername, lp);
  if (!success) {
    ERROR_LOG(m_logger) << LOGFUNCTION << " setLayerParameter failed for '" << emergencyCallLayername << "'";
    TRACE_LOG(m_logger) << LOGFUNCTION << " END";
    return false;
  }

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return true;
}

bool LayerFactoryImpl::switchEmergencyCallLayerOff()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";
  const QString &emergencyCallLayername = LayerNameEmergencyCall;

  if (!(d->m_orderedMapLayer.contains(emergencyCallLayername, SituationMap::LayerType::EmergencyCall)))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " EmergencyCallLayer does not exists, can´t be switched off.";
    TRACE_LOG(m_logger) << LOGFUNCTION << " END";
    return false;
  }

  LayerParameter lp = this->layerParameter(emergencyCallLayername);
  lp.visible = false;
  lp.opacity = 100;
  lp.minScale = -1;
  lp.maxScale = -1;

  const bool success = this->setLayerParameter(emergencyCallLayername, lp);
  if (!success) {
    ERROR_LOG(m_logger) << LOGFUNCTION << " setLayerParameter failed for '" << emergencyCallLayername << "'";
    TRACE_LOG(m_logger) << LOGFUNCTION << " END";
    return false;
  }

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return true;

}

void LayerFactoryImpl::handleEmergencyCallSpecials()
{
  const QString &emergencyCallLayername = LayerNameEmergencyCall;
  const bool bEmergencyCallLayerExists = emergencyCallLayerExists();
  TRACE_LOG(m_logger) << LOGFUNCTION << " START, emergencyCallLayerExists() = " << bEmergencyCallLayerExists;

  if (!bEmergencyCallLayerExists)
    return;

  // ensure to be on top:
  QStringList slLayerNamesOrdered = d->m_orderedMapLayer.layerNamesOrdered();
  if (slLayerNamesOrdered.isEmpty())
    return;

  const QString &lastNameTOP = slLayerNamesOrdered.last();

  if (lastNameTOP == emergencyCallLayer())
  {
    DEBUG_LOG(m_logger) << LOGFUNCTION << " emergencyCallLayer already on top";
    return;
  }

  slLayerNamesOrdered.removeAll(emergencyCallLayername);
  slLayerNamesOrdered.push_back(emergencyCallLayername);
  orderLayerTo(slLayerNamesOrdered);

  {
    QStringList slLayerNamesOrderedLocal = d->m_orderedMapLayer.layerNamesOrdered();
    if (slLayerNamesOrderedLocal.isEmpty())
      return;

    const QString &lastNameTOPLocal = slLayerNamesOrderedLocal.last();
    if (lastNameTOPLocal == emergencyCallLayer())
      DEBUG_LOG(m_logger) << LOGFUNCTION << " emergencyCallLayer is now on top";
  }
  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
}

Map *LayerFactoryImpl::map() const
{
  return d->m_mapImpl;
}

int LayerFactoryImpl::count() const
{
  return d->m_orderedMapLayer.count();
}

QStringList LayerFactoryImpl::layernames() const
{
  return d->m_orderedMapLayer.layerNamesOrdered();
}

QStringList LayerFactoryImpl::layernames(const LayerType &layerType) const
{
  return d->m_orderedMapLayer.layerNamesOrdered(layerType);
}

bool SituationMap::LayerFactoryImpl::checkLayerOrder(const QStringList &orderedLayernames)
{
  bool requestedOrderIsValid = false;
  bool success = d->m_orderedMapLayer.orderLayerTo(orderedLayernames, &requestedOrderIsValid);

  if (success)
    return requestedOrderIsValid;
  else
    return false;
}

bool LayerFactoryImpl::orderLayerTo(const QStringList &orderedLayernames)
{
  DEBUG_LOG(m_logger) << LOGFUNCTION << " START"
                      << ", orderedLayername=        " << orderedLayernames.join(QLatin1String(";"));

  if (orderedLayernames.isEmpty())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " orderedLayername is empty";
    return false;
  }

  bool success = true;

  const QStringList &orderedLayernamesCurrent = d->m_orderedMapLayer.layerNamesOrdered();
  DEBUG_LOG(m_logger) << LOGFUNCTION << " START"
                      << ", orderedLayernamesCurrent=" << orderedLayernamesCurrent.join(QLatin1String(";"));

  if (orderedLayernamesCurrent != orderedLayernames)
  {
    if ((success = d->m_orderedMapLayer.orderLayerTo(orderedLayernames)))
      reOrderLayer();
    else
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << " orderLayerTo failed";
      ERROR_LOG(m_logger) << LOGFUNCTION << " orderLayerTo failed, cur   =" << d->m_orderedMapLayer.layerNamesOrdered().join(QLatin1String(";"));
      ERROR_LOG(m_logger) << LOGFUNCTION << " orderLayerTo failed, should=" << orderedLayernames.join(QLatin1String(";"));
    }
    d->m_mapImpl->emitLayerOrderChanged();
  }

  DEBUG_LOG(m_logger) << LOGFUNCTION << " END, success=" << success
                      << ", orderedLayernamesCurrent=" << orderedLayernamesCurrent.join(QLatin1String(";"));
  return success;
}

LayerType LayerFactoryImpl::layerType(const QString &layername) const
{
  LayerType layerType = LayerType::Undefined;

  MapLayer mapLayer = d->m_orderedMapLayer.getLayer(layername);
  if (mapLayer.isValid())
    layerType = mapLayer.type();
  else
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " layer not found"
                        << " layername='" << layername << "'";
  }

  return layerType;
}

LayerParameter LayerFactoryImpl::layerParameter(const QString &layername) const
{
  LayerParameter lp;

  QSharedPointer<LogicalLayer> logicalLayer = this->getLogicalLayer(layername);
  if (logicalLayer)
    lp = logicalLayer->layerParameter();
  else
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " not found"
                        << " layername=" << layername;
  }

  return lp;
}

bool LayerFactoryImpl::setLayerParameter(const QString &layername, const LayerParameter &layerParameter)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " layername=" << layername;

  bool success = false;

  QSharedPointer<LogicalLayer> logicalLayer = this->getLogicalLayer(layername);
  if (logicalLayer)
  {
    logicalLayer->setLayerParameter(layerParameter);
    success = true;
  }
  else
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " not found"
                        << " layername=" << layername;
  }

  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " success=" << success;
  return success;
}


bool LayerFactoryImpl::setLayerParameter(LayerType layerType, int value, int LayerParameter::*memberPtr)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " layer type=" << int(layerType) << " layer parameter member=" << memberPtr << " value=" << value;

  const QStringList &layerNameList = d->m_orderedMapLayer.layerNamesOrdered(layerType);
  bool success = true;

  for (const QString &layername : layerNameList)
  {
    QSharedPointer<LogicalLayer> logicalLayer = this->getLogicalLayer(layername);
    if (logicalLayer)
    {
      LayerParameter layerParamTmp = logicalLayer->layerParameter();
      layerParamTmp.*memberPtr = value;
      logicalLayer->setLayerParameter(layerParamTmp);

    }
    else
    {
      success = false;
      ERROR_LOG(m_logger) << LOGFUNCTION << " not found"
                          << ", layername='" << layername << "'";
    }
  }

  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " success=" << success;
  return success;
}

bool LayerFactoryImpl::setLayerOpacity(LayerType layerType, int opacity)        { return setLayerParameter(layerType, opacity,     &LayerParameter::opacity);    }
bool LayerFactoryImpl::setLayerBrightness(LayerType layerType, int brightness)  { return setLayerParameter(layerType, brightness,  &LayerParameter::brightness); }
bool LayerFactoryImpl::setLayerContrast(LayerType layerType, int contrast)      { return setLayerParameter(layerType, contrast,    &LayerParameter::contrast);   }
bool LayerFactoryImpl::setLayerGamma(LayerType layerType, int gamma)            { return setLayerParameter(layerType, gamma,       &LayerParameter::gamma);      }

void LayerFactoryImpl::setLayersVisible(const QVector<LayerType> &layerTypes, bool visible)
{
  for (auto &logicalLayer : d->m_logicalLayerCont)
  {
    if (!layerTypes.contains(logicalLayer->layerType()))
      continue;
    LayerParameter layerParamTmp = logicalLayer->layerParameter();
    layerParamTmp.visible = visible;
    logicalLayer->setLayerParameter(layerParamTmp);
  }
}

#if ACRGIS_VERSION < 0x640500 // 100.5.0 / Update 5
// deprecated in V100.5, replaced by GeoView::setSelectionProperties()
QColor LayerFactoryImpl::selectionColor() const
{
  return d->m_selectionColor;
}
void LayerFactoryImpl::setSelectionColor(const QColor &selectionColor)
{
  d->m_selectionColor = selectionColor;
}
#endif // ACRGIS_VERSION

bool LayerFactoryImpl::elevationAvailable() const
{
  if (!d->m_mapImpl)
    return false;
  return this->elevationSourcesCount() > 0;
}

Esri::ArcGISRuntime::Surface *LayerFactoryImpl::baseSurface() const
{
  if (!elevationAvailable())
    return nullptr;

  Esri::ArcGISRuntime::Surface *baseSurface = nullptr;

  switch (d->m_mapImpl->mode())
  {
  case Mode::Mode_2D:
    baseSurface = d->m_baseSurface;
    break;
  case Mode::Mode_3D:
  {
    Esri::ArcGISRuntime::Scene *esriScene = d->m_mapImpl->getEsriScene();
    if (esriScene &&
        esriScene->baseSurface()
        )
      baseSurface = esriScene->baseSurface();
  }
    break;
  default:
    break;
  } // switch


  // Verify:
  if (!baseSurface)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no baseSurface";
    return nullptr;
  }

  if (baseSurface->loadStatus() != Esri::ArcGISRuntime::LoadStatus::Loaded)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " baseSurface not loaded yet";
    return nullptr;
  }

  int elevationSourcesCount = -1;
  Esri::ArcGISRuntime::ElevationSourceListModel* eslm = baseSurface->elevationSources();
  if (eslm)
    elevationSourcesCount = eslm->size();

  if (elevationSourcesCount <= 0)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no elevationSourcesCount";
    return nullptr;
  }

  return baseSurface;
}

int LayerFactoryImpl::elevationSourcesCount(bool checkIfLoaded) const
{
  if (!d->m_mapImpl)
    return -1;

  Esri::ArcGISRuntime::ElevationSourceListModel* elevationSourceListModel = nullptr;

  switch (d->m_mapImpl->mode())
  {
  case Mode::Mode_2D:
  {
    if (d->m_baseSurface && d->m_baseSurface->elevationSources())
      elevationSourceListModel = d->m_baseSurface->elevationSources();
  }

    break;
  case Mode::Mode_3D:
  {
    if (d->m_mapImpl->getEsriScene() &&
        d->m_mapImpl->getEsriScene()->baseSurface() &&
        d->m_mapImpl->getEsriScene()->baseSurface()->elevationSources()
        )
      elevationSourceListModel = d->m_mapImpl->getEsriScene()->baseSurface()->elevationSources();
  }
    break;
  default:
    return false;
  } // switch

  if (!elevationSourceListModel)
    return -1;

  int elevationSourcesCount = -1;

  if (checkIfLoaded)
  {
    elevationSourcesCount = 0;

    int idx = 0;
    const int esmSize = elevationSourceListModel->size();
    for (; idx < esmSize; ++idx)
    {
      Esri::ArcGISRuntime::ElevationSource *es = elevationSourceListModel->at(idx);

      if (es && (es->loadStatus() == Esri::ArcGISRuntime::LoadStatus::Loaded))
        ++elevationSourcesCount;
    } // for

    INFO_LOG(m_logger) << LOGFUNCTION << " elevationSourcesCount = " << esmSize
                       << ", loaded = " << elevationSourcesCount;
  }
  else
  {
    elevationSourcesCount = elevationSourceListModel->size();
  }

  return elevationSourcesCount;
}

bool LayerFactoryImpl::elevationSourcesLoaded()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";
  const int elevationSourcesCount       = this->elevationSourcesCount();
  const int elevationSourcesCountLoaded = this->elevationSourcesCount(true);
  return (elevationSourcesCount == elevationSourcesCountLoaded);
}

QPointer<LocationToElevationHelper> LayerFactoryImpl::locationToElevation() const
{
  QPointer<LocationToElevationHelper> locationToElevationHelper;

  if (!elevationAvailable())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no elevation available";
    return locationToElevationHelper;
  }

  Esri::ArcGISRuntime::Surface *baseSurface = this->baseSurface();

  if (!baseSurface)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no baseSurface";
    return locationToElevationHelper;
  }

  LayerFactoryImpl *THIS = const_cast<LayerFactoryImpl*>(this);
  locationToElevationHelper = new LocationToElevationHelper(THIS); // QPointer -> parent is ok!

  if (!locationToElevationHelper->init(d->m_mapImpl,
                                       baseSurface,
                                       d->m_mapImpl->getEsriSpatialReference()))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " locationToElevationHelper->init failed";
    delete locationToElevationHelper;
    return nullptr;
  }

  return locationToElevationHelper;
}

Esri::ArcGISRuntime::GraphicsOverlay *LayerFactoryImpl::getGraphicsLayer(const QString &logicalName)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START, logicalName='" << logicalName << "'";

  Esri::ArcGISRuntime::GraphicsOverlay *graphicsLayer = nullptr;

  QSharedPointer<LogicalLayer> logicalLayer = d->getLogicalLayer(logicalName);
  if (d->m_orderedMapLayer.contains(logicalName, LayerType::Undefined) &&  logicalLayer)
    graphicsLayer = logicalLayer->getCreateGraphicalOverlay(TechnicalLayerType::GraphicsLayer);

  TRACE_LOG(m_logger) << LOGFUNCTION << " END, logicalName='" << logicalName << "'"
                      << " graphicsLayer=" << graphicsLayer;
  return graphicsLayer;
}

Esri::ArcGISRuntime::GraphicsOverlay *LayerFactoryImpl::getGraphicsLayerDict(const QString &logicalName)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START, logicalName='" << logicalName << "'";

  Esri::ArcGISRuntime::GraphicsOverlay *graphicsLayer = nullptr;

  QSharedPointer<LogicalLayer> logicalLayer = d->getLogicalLayer(logicalName);
  if (d->m_orderedMapLayer.contains(logicalName, LayerType::Undefined) &&  logicalLayer)
    graphicsLayer = logicalLayer->getCreateGraphicalOverlay(TechnicalLayerType::GraphicsLayer_Dict);

  TRACE_LOG(m_logger) << LOGFUNCTION << " END, logicalName='" << logicalName << "'"
                      << " graphicsLayer=" << graphicsLayer;
  return graphicsLayer;
}

Esri::ArcGISRuntime::GraphicsOverlay *LayerFactoryImpl::getGraphicsLayer3DExtrusion(const QString &logicalName)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START, logicalName='" << logicalName << "'";

  Esri::ArcGISRuntime::GraphicsOverlay *graphicsLayer = nullptr;

  // getGraphicsLayer3DExtrusion -> SurfacePlacement::Relative

  QSharedPointer<LogicalLayer> logicalLayer = d->getLogicalLayer(logicalName);
  if (d->m_orderedMapLayer.contains(logicalName, LayerType::Undefined) &&  logicalLayer)
    graphicsLayer = logicalLayer->getCreateGraphicalOverlay(TechnicalLayerType::GraphicsLayer_3D_Extrusion);

  TRACE_LOG(m_logger) << LOGFUNCTION << " END, logicalName='" << logicalName << "'"
                      << " graphicsLayer=" << graphicsLayer;
  return graphicsLayer;
}

Esri::ArcGISRuntime::GraphicsOverlay *LayerFactoryImpl::getGraphicsLayer3D_SpAbsolute(const QString &logicalName)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START, logicalName='" << logicalName << "'";

  Esri::ArcGISRuntime::GraphicsOverlay *graphicsLayer = nullptr;

  // getGraphicsLayer3D_SpAbsolute -> SurfacePlacement::Absolute

  QSharedPointer<LogicalLayer> logicalLayer = d->getLogicalLayer(logicalName);
  if (d->m_orderedMapLayer.contains(logicalName, LayerType::Undefined) &&  logicalLayer)
    graphicsLayer = logicalLayer->getCreateGraphicalOverlay(TechnicalLayerType::GraphicsLayer_3D_Absolute);

  TRACE_LOG(m_logger) << LOGFUNCTION << " END, logicalName='" << logicalName << "'"
                      << " graphicsLayer=" << graphicsLayer;
  return graphicsLayer;
}



QString LayerFactoryImpl::createInternalLayerName(const TechnicalLayerType &technicalLayerType,
                                                  const QString &logicalLayerName) const
{
  return LogicalLayer::createInternalLayerName(logicalLayerName, technicalLayerType);
}

QSharedPointer<LogicalLayer> LayerFactoryImpl::getLogicalLayer(const QString &logicalName) const
{
  return d->getLogicalLayer(logicalName);
}

QSharedPointer<LogicalLayer> LayerFactoryImpl::getCreateLogicalLayer(const QString &logicalName)
{
  if (! d->hasLogicalLayer(logicalName))
    d->createLogicalLayer(logicalName);

  QSharedPointer<LogicalLayer> logicalLayer = d->getLogicalLayer(logicalName);
  if (logicalLayer)
  {
    connect(logicalLayer.data(), &LogicalLayer::layerParameterChanged,
            this, &LayerFactoryImpl::onLayerParameterChanged);

    connect(logicalLayer.data(), &LogicalLayer::layerCreatedOnDemand,
            this, &LayerFactoryImpl::onLayerCreatedOnDemand);

    connect(logicalLayer.data(), &LogicalLayer::layerDoneLoading,
            this, &LayerFactoryImpl::onLayerDoneLoading);
  }
  else
    ERROR_LOG(m_logger) << LOGFUNCTION << " getLogicalLayer failed";
  return logicalLayer;
}

bool LayerFactoryImpl::addBasemapInternal(const QString &layername,
                                          const QUrl &mapServiceUrl,
                                          const BasemapType basemapType,
                                          const double minScale,
                                          const double maxScale,
                                          const QString &displayName,
                                          const QString &description,
                                          const QImage &previewImage)
{
  if (mapServiceUrl.isEmpty())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " mapServiceUrl empty, can not add layer "
                        << layername << " basemap type: " << basemapType;
    return false;
  }

  if (d->m_orderedMapLayer.contains(layername, LayerType::Undefined))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " layername '" << layername << "' already in use";
    return false;
  }

  //-----------------------------------
  // ArcGIS Tiled Basemap Layer
  //-----------------------------------
  //-----------------------------------------------------------------
  // Attention:
  // local    URLS -> do NOT specify any userCredentials (main)
  // external URLS -> DO specify userCredentials (main)
  //-----------------------------------------------------------------

  Esri::ArcGISRuntime::Layer *layer = nullptr;


  if (mapServiceUrl.isLocalFile())
  {
    QUrl finalUrl = this->completeUrl(QLatin1String("BASEMAP"),
                                      mapServiceUrl,
                                      QLatin1String("/"));
    INFO_LOG(m_logger) << LOGFUNCTION
                       << " TileCache: finalUrl '" << finalUrl.toString() << "'"
                       << ", finalUrltoLocalFile '" << finalUrl.toLocalFile() << "'";
    QString tcFileAbs = finalUrl.toLocalFile();

    QFileInfo fi(tcFileAbs);

    if (!fi.exists(tcFileAbs))
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << " file '" << tcFileAbs << "' doesn't exists";
      return false;
    }

    if (fi.isDir() ||                                   // TileCacheFolder
        fi.suffix().compare(QLatin1String("tpk"))==0)   // TilePackage
    {
      Esri::ArcGISRuntime::TileCache *tileCache = new Esri::ArcGISRuntime::TileCache(tcFileAbs, d->m_mapImpl);
      tileCache->setObjectName(QLatin1String("BasemapTileCache-")+layername);
      layer = new Esri::ArcGISRuntime::ArcGISTiledLayer(tileCache, d->m_mapImpl);
    }
    else if (fi.suffix().compare(QLatin1String("vtpk"))==0)   // VectorTilePackage
    {
      Esri::ArcGISRuntime::VectorTileCache *vectorTileCache = new Esri::ArcGISRuntime::VectorTileCache(tcFileAbs, d->m_mapImpl);
      vectorTileCache->setObjectName(QLatin1String("BasemapVectorTileCache-")+layername);
      layer = new Esri::ArcGISRuntime::ArcGISVectorTiledLayer(vectorTileCache, d->m_mapImpl);
    }
    else
    {
      // geotiff (often '.tif')
      Esri::ArcGISRuntime::Raster* raster = new Esri::ArcGISRuntime::Raster(tcFileAbs, d->m_mapImpl);
      layer = new Esri::ArcGISRuntime::RasterLayer(raster, d->m_mapImpl);

      // loading of the geotiff may take a while (tile by tile)
    }
  }
  else
  {
    INFO_LOG(m_logger) << LOGFUNCTION << " loading url '" << mapServiceUrl.toString() << "'";
    layer = new Esri::ArcGISRuntime::ArcGISTiledLayer(mapServiceUrl, d->m_mapImpl);
  }

  layer->setName(layername);
  layer->setObjectName(layer->name());

  if (!d->m_orderedMapLayer.addLayer(layer->name(), SituationMap::LayerType::Basemap))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION
                        << " addLayer failed'" << layer->name() << "'";
  }

  QImage previewImageFinal = previewImage;
  if (previewImageFinal.isNull())
  {
    switch (basemapType)
    {
    case BasemapType::Undefined:
    case BasemapType::Aerial:
      previewImageFinal = QImage(QLatin1String(":/situationMap/preview_aerial.png"));
      break;
    case BasemapType::Topographic:
      previewImageFinal = QImage(QLatin1String(":/situationMap/preview_topographic.png"));
      break;
    } // switch
  }

  if (! d->m_basemap)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no basemap!!!";
    return false;
  }


  int basemapCount = -1;
  if (d->m_basemap->baseLayers())
    basemapCount = d->m_basemap->baseLayers()->size();

  INFO_LOG(m_logger) << LOGFUNCTION << " basemapCount = " << basemapCount;

  d->m_basemap->baseLayers()->append(layer);


  // getLogicalLayer will
  // - initialize
  // - do errorHandling
  // - update Layerparamter on doneLoading
  // - and add layer to LayerListModel of basemap:
  QSharedPointer<LogicalLayer> logicalLayer = this->getCreateLogicalLayer(layername);
  if (logicalLayer.isNull())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION
                        << " getLogicalLayer invalid'" << layername << "'";
  }
  else
  {
    // update LayerParameter first:
    LayerParameter lp = logicalLayer->layerParameter();
    lp.url            = mapServiceUrl;
    lp.minScale       = minScale;
    lp.maxScale       = maxScale;
    lp.basemapType    = basemapType;
    lp.displayName    = displayName;
    lp.description    = description;
    lp.previewImage   = previewImageFinal;
    logicalLayer->setLayerParameter(lp);

    logicalLayer->setLayer(layer);
    logicalLayer->setLayerType(LayerType::Basemap);
    logicalLayer->setBasemapType(basemapType);  // basemapType -> aerial, topo...
  }


  //  // load / retryLoad:
  //  if (d->m_esriMap->loadStatus() == Esri::ArcGISRuntime::LoadStatus::FailedToLoad)
  //    d->m_esriMap->retryLoad();
  //  else
  //    d->m_esriMap->load();

  return true;
}

bool LayerFactoryImpl::removeLayerInternal(const LayerType &layerType, const QString &logicalLayerName)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " layerType=" << layerType
                      << " logicalLayerName=" << logicalLayerName;

  if (logicalLayerName.isEmpty())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " logicalLayerName empty"
                        << logicalLayerName;
    return false;
  }
  if (! d->m_orderedMapLayer.contains(logicalLayerName, layerType))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " does not exist: '"
                        << " layerType=" << layerType
                        << " logicalLayerName='" << logicalLayerName << "'";
    return false;
  }

  if (! d->hasLogicalLayer(logicalLayerName))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " does not exist: '"
                        << " layerType=" << layerType
                        << " logicalLayerName='" << logicalLayerName << "'";
  }

  if (! d->m_orderedMapLayer.removeLayer(logicalLayerName))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " remove failed: '"
                        << " layerType=" << layerType;
    return false;
  }

  d->removeLogicalLayer(logicalLayerName);

  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " logicalLayerName='" << logicalLayerName << "'";
  return true;
}

bool LayerFactoryImpl::reOrderLayer()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";

  DEBUG_LOG(m_logger) << LOGFUNCTION << " orderedList 1: " << d->m_orderedMapLayer.layerNamesOrdered().join(QLatin1String(";"));

  reOrderLayerBasemap();
  reOrderLayerGraphicOverlays();

  DEBUG_LOG(m_logger) << LOGFUNCTION << " orderedList 2: " << d->m_orderedMapLayer.layerNamesOrdered().join(QLatin1String(";"));

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return true;
}

bool LayerFactoryImpl::reOrderLayerBasemap()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";

  if (!(d->m_basemap &&
        d->m_basemap->baseLayers() &&
        ! d->m_basemap->baseLayers()->isEmpty())
      )
    return false;

  const QStringList &allLogicalLayerNames = d->m_orderedMapLayer.layerNamesOrdered();
  DEBUG_LOG(m_logger) << LOGFUNCTION << " orderedListAll: " << allLogicalLayerNames.join(QLatin1String(";"));

  const QStringList &basemapLogicalNames = d->m_orderedMapLayer.layerNamesOrdered(LayerType::Basemap);
  DEBUG_LOG(m_logger) << LOGFUNCTION << " orderedListBasemap: " << basemapLogicalNames.join(QLatin1String(";"));

  int newIdx = 0;
  Esri::ArcGISRuntime::LayerListModel *model = d->m_basemap->baseLayers();
  for (const QString &basemapName : basemapLogicalNames)
  {
    int curIdx = getEsriBasemapLayerIndex(basemapName);

    if (curIdx != newIdx)
    {
      DEBUG_LOG(m_logger) << LOGFUNCTION
                          << " move"
                          << " basemapName ='" << basemapName << "'"
                          << " from " << curIdx
                          << " to " << newIdx << "...";
      model->move(curIdx, newIdx);
    }
    ++newIdx;
  } // for

  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " orderedList: " << d->m_orderedMapLayer.layerNamesOrdered().join(QLatin1String(";"));
  return true;
}

bool LayerFactoryImpl::reOrderLayerGraphicOverlays()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " orderedList: " << d->m_orderedMapLayer.layerNamesOrdered().join(QLatin1String(";"));

  if (! d->getEsriGraphicsOverlayListModel())
    return false;

  if (d->getEsriGraphicsOverlayListModel()->isEmpty())
    return false;

  const QStringList &layernamesOrdered = d->m_orderedMapLayer.layerNamesOrdered();

  //
  // reOrder all GraphicOverlays:
  //
  DEBUG_LOG(m_logger) << LOGFUNCTION << " layernamesOrdered: " << layernamesOrdered.join(QLatin1String(";"));

  Esri::ArcGISRuntime::GraphicsOverlayListModel *model = d->getEsriGraphicsOverlayListModel();
  DEBUG_LOG(m_logger) << LOGFUNCTION << " model.size() 1= " << model->size();


  //  N. Thoden, 28.03.2018, V100.2.1  -  Consulting with Luke Smallwood:
  //  Using the testFix for the crashOnStartup, the approach of
  //    model->clear();
  //    // re-append in required new order:
  //    foreach (auto l, newOrderedGraphicsOverlayList)
  //        model->append(l)
  //  fails. -> go back to the initial (move) approach
  // ==> use MOVE_APPROACH
#define MOVE_APPROACH

  // N. Thoden, 06.04.2018, V100.2.1  -  AFTER Consulting with Luke Smallwood:
  // Scenario:
  // - start opApp,
  // - add simple plan/overlay (one ETS point symbol) via Overlay Dialag
  //   (participants can be picked and MapObjectSelection is opened)
  // - remove plan/overlay via Overlay Dialag
  //   (participants can no longer be picked and MapObjectSelection is opened)
  // -> EventMouseNavigator::onGetPickingResult gets empty list from ESRI...
  // ==> toogle back to NOT using MOVE_APPROACH
#undef MOVE_APPROACH

  // N. Thoden, 30.08.2018, V100.3.0  -  behaviour is now:
  // Using the MOVE_APPROACH the picking is working
#if ACRGIS_VERSION >= 0x640300 // 100.3.0 / Update 3
#  define MOVE_APPROACH
#endif


#ifdef MOVE_APPROACH
  //
  // model->move(curIdx, newIdx); seems to be buggy
  // (N. Thoden, 29.09.2016, QuartzBeta1)
  //
  int newIdx = 0;
  for (const QString &logicalname : layernamesOrdered)
  {
    QSharedPointer<LogicalLayer> ll = d->getLogicalLayer(logicalname);
    if (ll && ll->basemapType() == BasemapType::Undefined)  //BasemapType::Undefined -> GraphicsOverlay
    {
      QList<QPair<QString, Esri::ArcGISRuntime::GraphicsOverlay*> > pairs =
          ll->getCurrentGraphicalOverlaysOrderedWithName();

      QListIterator< QPair<QString, Esri::ArcGISRuntime::GraphicsOverlay*> > it(pairs);

      while (it.hasNext())
      {
        const QPair<QString, Esri::ArcGISRuntime::GraphicsOverlay*> &pair = it.next();

        const QString &esriLayername = pair.first;
        Esri::ArcGISRuntime::GraphicsOverlay *graphicalOverlay = pair.second;

        DEBUG_LOG(m_logger) << LOGFUNCTION
                            << " handle"
                            << " esriLayername='" << esriLayername << "':";

        int curIdx = model->indexOf(graphicalOverlay);

        DEBUG_LOG(m_logger) << LOGFUNCTION
                            << " handle"
                            << " esriLayername='" << esriLayername << "':"
                            << " curIdx=" << curIdx << " -> newIdx="<< newIdx;

        if (curIdx < 0)
        {
          FATAL_LOG(m_logger) << LOGFUNCTION
                              << " esriLayername='" << esriLayername << "':"
                              << " not found";
          abort();
          // continue;
        }

        if (curIdx != newIdx)
        {
          DEBUG_LOG(m_logger) << LOGFUNCTION
                              << " move"
                              << " GraphicOverlays ="
                              << " from " << curIdx
                              << " to " << newIdx << "..." ;
          DEBUG_LOG(m_logger) << LOGFUNCTION << " model.size() 2= " << model->size();
          model->move(curIdx, newIdx);
          DEBUG_LOG(m_logger) << LOGFUNCTION << " model.size() 3= " << model->size();

          int retIdx = model->indexOf(graphicalOverlay);

          if (retIdx != newIdx)
          {
            FATAL_LOG(m_logger) << LOGFUNCTION
                                << " esriLayername='" << esriLayername << "':"
                                << " move failed"
                                << " curIdx='" << curIdx
                                << " newIdx='" << newIdx
                                << " retIdx='" << retIdx;
            abort();
          }
        }
        ++newIdx;
      } // while
    } // if
  } // for

#else

  // build new order of GraphicsOverlays :
  QList<Esri::ArcGISRuntime::GraphicsOverlay *> newOrderedGraphicsOverlayList;

  foreach (const QString &logicalname, layernamesOrdered)
  {
    QSharedPointer<LogicalLayer> ll = d->getLogicalLayer(logicalname);
    if (ll && ll->basemapType() == BasemapType::Undefined)  //BasemapType::Undefined -> GraphicsOverlay
    {
      QList<QPair<QString, Esri::ArcGISRuntime::GraphicsOverlay *> > pairs =
          ll->getCurrentGraphicalOverlaysOrderedWithName();

      QListIterator< QPair<QString, Esri::ArcGISRuntime::GraphicsOverlay *> > it(pairs);

      while (it.hasNext())
      {
        const QPair<QString, Esri::ArcGISRuntime::GraphicsOverlay *> &pair = it.next();

        QString esriLayername = pair.first;
        Esri::ArcGISRuntime::GraphicsOverlay *graphicalOverlay = pair.second;

        DEBUG_LOG(m_logger) << LOGFUNCTION
                            << " handle"
                            << " esriLayername='" << esriLayername << "'";
        newOrderedGraphicsOverlayList.append(graphicalOverlay);
      } // while
    } // if
  } // foreach
  // : build new order of GraphicsOverlays

  // clear model:
  model->clear();

  // re-append in required new order:
  foreach (auto l, newOrderedGraphicsOverlayList)
    model->append(l);

#endif // MOVE_APPROACH

  DEBUG_LOG(m_logger) << LOGFUNCTION << " model.size() 4= " << model->size();

  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " orderedList: " << d->m_orderedMapLayer.layerNamesOrdered().join(QLatin1String(";"));
  return true;
}

int LayerFactoryImpl::getEsriBasemapLayerIndex(const QString &esriLayername) const
{
  if (!(d->m_basemap && d->m_basemap->baseLayers()))
    return -1;

  const Esri::ArcGISRuntime::LayerListModel *model = d->m_basemap->baseLayers();
  for (int i = 0; i < model->size(); ++i)
  {
    const Esri::ArcGISRuntime::Layer *curLayer = model->at(i);
    const QString &curName = curLayer->name();
    if (QString::compare(esriLayername, curName) == 0)
      return i;
  }
  return -1;
}

Esri::ArcGISRuntime::Layer *LayerFactoryImpl::getEsriBasemapLayer(const QString &esriLayername) const
{
  int idx = getEsriBasemapLayerIndex(esriLayername);
  if (idx < 0)
    return nullptr;
  // d->m_basemap already checked within 'getEsriBasemapLayerIndex'
  Esri::ArcGISRuntime::Layer *layerFound = d->m_basemap->baseLayers()->at(idx);
  return layerFound;
}

QUrl LayerFactoryImpl::completeUrl(const QString &context,
                                   const QUrl &urlIn,
                                   const QString &resourceSubdir)
{
  DEBUG_LOG(m_logger) << LOGFUNCTION << " START"
                      << " context='" << context << "'"
                      << ", urlIn='"         << urlIn.toString()
                      << " resourceSubdir='" << resourceSubdir << "'";

  if (!urlIn.isLocalFile())
  {
    DEBUG_LOG(m_logger) << LOGFUNCTION << " http -> return"
                        << ", url ='"         << urlIn.toString();
    return urlIn;
  }

  // assume it´s a file url:
  // make absolute path according resourcePath:
  QString filePathAbs = urlIn.toLocalFile();
  if (QDir::isRelativePath(filePathAbs))
    filePathAbs = SituationMap::getResourcePath() + resourceSubdir + filePathAbs;

  if (!QFileInfo::exists(filePathAbs))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION
                        << " context='" << context << "'"
                        << " file '" << filePathAbs << "' doesn't exists";
    return urlIn;
  }

  DEBUG_LOG(m_logger) << LOGFUNCTION << " END"
                      << " context='" << context << "'"
                      << ", filePathAbs='"         << filePathAbs << "'";
  return QUrl::fromLocalFile(filePathAbs);
}


void LayerFactoryImpl::onLayerParameterChanged(const QString &layername, const LayerParameter &newLayerParameter)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " layername='" << layername << "'"
                      << ", newLayerParameter='"         << newLayerParameter;
  d->m_mapImpl->emitLayerParameterChanged(layername, newLayerParameter);
}

void LayerFactoryImpl::onLayerCreatedOnDemand(const QString &logicalName)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " logicalName='" << logicalName << "'";
  this->reOrderLayer();
  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " logicalName='" << logicalName << "'";
}

void LayerFactoryImpl::onLayerDoneLoading(const QString &logicalName)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " logicalName='" << logicalName << "'";

  MapLayer mapLayer = d->m_orderedMapLayer.getLayer(logicalName);
  if (!mapLayer.isValid())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " mapLayer not found"
                        << " layername='" << logicalName << "'";
  }

  if (mapLayer.type() != LayerType::Basemap)
    return;

  QSharedPointer<LogicalLayer> layer = d->getLogicalLayer(logicalName);
  if (!layer)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no layer, "
                        << " layername='" << logicalName << "'";
    return;
  }

  // Bugfix :
  //  REGG-5350 - mit dem normalen Zoom ( Mausrad ) kann man 6 Stufen ansteuern.
  //    Erst nach der Ums...
  //  REGG-5338 - In der Live-Lage ist die Zoomstufe nicht
  //    vollständig nutzbar, das letzte Viertel...
  //  REGG-5317 - Die Lagekarte der 1. Lageanwendung lässt sich nicht bis
  //    zur untersten Begrenzung...

  // (Hinein)Zoomen nur bis Scale 4000 moeglich...
  // Tritt mit TA Letzlingen und User OHNE Settings sgelgentlich auf.
  // Loesungsansatz: Slot-Methoden von synchronen Aufruf zu
  // reCalculateMinMaxScaleBasedOnLayers befreien und per Timer aufrufen.
  //  // reCalculate minMaxScale even if there is just one Basemap:
  //  // calulcate and set values direct:
  //  reCalculateMinMaxScaleBasedOnLayers();
  // : Bugfix

  // do via timer:
  d->reCalculateMinMaxScaleTimer->start(); // start == restart

  TRACE_LOG(m_logger) << LOGFUNCTION << " END"
                      << " logicalName='" << logicalName << "'";
}

void LayerFactoryImpl::onElevationSourceDoneLoading()
{
  Esri::ArcGISRuntime::ElevationSource *elevationSource = qobject_cast<Esri::ArcGISRuntime::ElevationSource *>(sender());
  if (elevationSource)
  {
    INFO_LOG(m_logger) << LOGFUNCTION << " ElevationSource -> doneLoading: "
                       << " sender= '" << elevationSource->objectName() << "'"
                       << " loadStatus= '" << elevationSource->loadStatus() << "'"
                       << " elevationSourceType= " << elevationSource->elevationSourceType();

    INFO_LOG(m_logger) << LOGFUNCTION << " ElevationSources " << elevationSourcesLoaded();

    if (elevationSourcesLoaded())
    {
      INFO_LOG(m_logger) << LOGFUNCTION << " ElevationSources completed";
      d->m_mapImpl->emitAllElevationSourcesLoaded();
    }
  }
  else
    INFO_LOG(m_logger) << LOGFUNCTION << " ElevationSource -> doneLoading";

}

void LayerFactoryImpl::onElevationSourceErrorOccured(const Esri::ArcGISRuntime::Error &error)
{
  QString senderName;
  Esri::ArcGISRuntime::ElevationSource *elevationSource = qobject_cast<Esri::ArcGISRuntime::ElevationSource *>(sender());
  if (elevationSource)
    senderName = elevationSource->objectName();

  ERROR_LOG(m_logger) << LOGFUNCTION << " ElevationSource -> EsriError occured: " << error
                      << ", sender= '" << senderName << "'";
}

void LayerFactoryImpl::onSurfaceDoneLoading2D()
{
  QString senderName;
  Esri::ArcGISRuntime::Surface *surface = qobject_cast<Esri::ArcGISRuntime::Surface *>(sender());
  if (surface)
    senderName = surface->objectName();

  INFO_LOG(m_logger) << LOGFUNCTION << " Surface -> doneLoading: "
                     << " sender= '" << senderName << "'";
}

void LayerFactoryImpl::onSurfaceErrorOccured2D(const Esri::ArcGISRuntime::Error &error)
{
  QString senderName;
  Esri::ArcGISRuntime::Surface *surface = qobject_cast<Esri::ArcGISRuntime::Surface *>(sender());
  if (surface)
    senderName = surface->objectName();

  ERROR_LOG(m_logger) << LOGFUNCTION << " Surface -> EsriError occured: " << error
                      << ", sender= '" << senderName << "'";
}

void LayerFactoryImpl::reCalculateMinMaxScaleBasedOnLayers()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";

  const QStringList &layernames = d->m_orderedMapLayer.layerNamesOrdered(LayerType::Basemap);

  double minScale = 0;
  double maxScale = 0;

  QList<int> minScales;
  QList<int> maxScales;


  bool initial = true;

  for (const QString &layername : layernames)
  {
    DEBUG_LOG(m_logger) << LOGFUNCTION << " layername" << layername;

    QSharedPointer<LogicalLayer> layer = d->getLogicalLayer(layername);
    if (!layer)
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << " no layer, "
                          << " layername='" << layername << "'";
      continue;
    }

    const LayerParameter &layerParameter = layer->layerParameter();

    DEBUG_LOG(m_logger) << LOGFUNCTION
                        << " layername='" << layername << "'"
                        << " minScale=" << layerParameter.minScale
                        << " maxScale=" << layerParameter.maxScale;


    // already loaded? (
    if (!layerParameter.minMaxScaleValid())
    {
      DEBUG_LOG(m_logger) << LOGFUNCTION << " layername" << layername
                          << " not valid";
      continue;
    }

    double localMinScale = layerParameter.minScale;
    double localMaxScale = layerParameter.maxScale;

    minScales.append(static_cast<int>(localMinScale));
    maxScales.append(static_cast<int>(localMaxScale));

    // first time: set initial values:
    if (initial)
    {
      initial = false;
      minScale = localMinScale;
      maxScale = localMaxScale;
    }
    else
    {
      minScale = std::max(minScale, localMinScale); // use std::max for minScale!!!
      maxScale = std::min(maxScale, localMaxScale); // use std::min for maxScale!!!
    }
  } // for

  DEBUG_LOG(m_logger) << LOGFUNCTION
                      << " a minScale=" << minScale
                      << " maxScale=" << maxScale;

  // OGC: scales are optional. In this case use '0':
  // For MinScale:
  if (minScales.contains(0))
    minScale = 0;

  // For MaxScale:
  if (maxScales.contains(0))
    maxScale = 0;

  DEBUG_LOG(m_logger) << LOGFUNCTION
                      << " apply "
                      << " minScale=" << minScale
                      << " maxScale=" << maxScale;
//  d->m_mapImpl->setMinScale(minScale+1);  // why did i wrote this?
//  d->m_mapImpl->setMaxScale(maxScale+1);  // why did i wrote this?
  d->m_mapImpl->setMinScale(minScale);
  d->m_mapImpl->setMaxScale(maxScale);
}


} // namespace SituationMap