/**
  * @RDE_HEADER@
  * MapLayer
  * $Id$
  * $HeadURL$
  * $Author$
  */

#pragma once

// Own
#include <Map/map.h>
#include <Map/layer_parameter.h>
#include <Common/situation_map_logging.h>


//ESRI
#include <arcgis/LayerListModel.h>
#include <arcgis/Layer.h>
#include <arcgis/GraphicsOverlay.h>
#include <arcgis/GraphicsOverlayListModel.h>


// Qt
#include <QVector>


//----------------------------------------------------------------------------
namespace SituationMap
{

class MapImpl;


enum class TechnicalLayerType
{
  GraphicsLayer,
  GraphicsLayer_Dict,
  GraphicsLayer_3D_Extrusion,
  GraphicsLayer_3D_Absolute
};
SITUATIONMAP_EXPORT QLatin1String toString(const TechnicalLayerType &value);



class LogicalLayer final : public QObject
{
  Q_OBJECT
  using BaseClass = QObject;

public:
  /*! \name Creation, Destruction */
  //@{
  explicit LogicalLayer(const QString &logicalName, QObject *parent = nullptr);
  ~LogicalLayer();

  void init(SituationMap::Map *map,
            Esri::ArcGISRuntime::LayerListModel *layerListModel,
            Esri::ArcGISRuntime::GraphicsOverlayListModel *graphicsOverlayListModel);
  void fini();

  void setLayerType(const LayerType &layerType);
  void setBasemapType(const BasemapType &basemapType);

  RenderingMode renderingMode() const;                          ///< has to be set early
  void setRenderingMode(RenderingMode renderingMode);           ///< has to be set early

  SurfacePlacement surfacePlacement() const;                    ///< has to be set early
  void setSurfacePlacement(SurfacePlacement surfacePlacement);  ///< has to be set early


  void setOrderOfGraphicalOverlays(const QVector<TechnicalLayerType> &orderOfGraphicalOverlays);
  //@}


  /*! \name Some names */
  //@{
  QString logicalName() const;
  void setLogicalName(const QString &logicalName);
  static QString createInternalLayerName(const QString &logicalLayerName,
                                         const TechnicalLayerType &technicalLayerType);
  //@}


  /*! \name Access to some types */
  //@{
  LayerType             layerType() const;
  BasemapType           basemapType() const;
  //@}

  /*! \name Access to LayerParameter*/
  //@{
  const LayerParameter &layerParameter() const;
  void setLayerParameter(const LayerParameter &layerParameter);
  //@}


  /*! \name Main Access without creation on demand*/
  //@{
  void setLayer(Esri::ArcGISRuntime::Layer *layer);
  Esri::ArcGISRuntime::Layer *layer() const;
  QList<Esri::ArcGISRuntime::GraphicsOverlay *> getCurrentGraphicalOverlaysOrdered() const;

  QList<QPair<QString, Esri::ArcGISRuntime::GraphicsOverlay *>> getCurrentGraphicalOverlaysOrderedWithName() const;

  //@}

  /*! \name Main Access with creation on demand*/
  //@{
  Esri::ArcGISRuntime::GraphicsOverlay *getCreateGraphicalOverlay(const TechnicalLayerType &technicalLayerType);
  //@}

  /*! \name Access to LayerIndex*/
  //@{
  int layerIndex() const;
  //@}




protected:
  QString                       m_logicalName;


  // Some enums:
  LayerType                     m_layerType                     = LayerType::Undefined;
  BasemapType                   m_basemapType                   = BasemapType::Undefined;
  RenderingMode                 m_graphicsOverlayRenderingMode  = RenderingMode::Dynamic;
  SurfacePlacement              m_surfacePlacement              = SurfacePlacement::Draped;

  // visi, opac, brigth, gamma, contrast...
  LayerParameter                m_layerParameter;

  // to enable/allow GraphicalOverlays and set their order:
  QVector<TechnicalLayerType>   m_orderOfGraphicalOverlays;

  // ESRI:
  Esri::ArcGISRuntime::Layer                      *m_layer = nullptr;   // store BasemapLayer
  QVector<Esri::ArcGISRuntime::GraphicsOverlay *>  m_graphicalOverlays; // store GraphicsOverlays (unordered)
  int                                              m_retryCounter = 0;


signals:
  void layerCreatedOnDemand(const QString &logicalName);
  void layerDoneLoading(const QString &logicalName);
  void layerParameterChanged(const QString &logicalName, const LayerParameter &newLayerParameter);

protected slots:
  void onLayerError(const Esri::ArcGISRuntime::Error &error);
  void onGraphicsOverlayLayerError(const Esri::ArcGISRuntime::Error &error);
  void onRendererError(const Esri::ArcGISRuntime::Error &error);
  void onLayerDoneLoading(const Esri::ArcGISRuntime::Error &loadError);       // not for GraphicOverlays
  void onLayerLoadStatusChanged(const Esri::ArcGISRuntime::LoadStatus &loadStatus);  // not for GraphicOverlays


private:
  // to be able to handle with BaseLayers (got from Map)
  Esri::ArcGISRuntime::LayerListModel           *m_layerListModel = nullptr;

  // to be able to handle with GraphicalOverlays (got from GeoView)
  Esri::ArcGISRuntime::GraphicsOverlayListModel *m_graphicsOverlayListModel          = nullptr;

  // to be able to create DictionaryRenderer:
  SituationMap::Map                             *m_map = nullptr;


  // Since GraphicOverlays don`t support setName yet:
  // (and objectname returns an empty string in any case):
  mutable QMap<QString, Esri::ArcGISRuntime::GraphicsOverlay *> m_graphicOverlayContainer; // workaround


  Esri::ArcGISRuntime::GraphicsOverlay *createGraphicLayer(const TechnicalLayerType &technicalLayerType,
                                                           RenderingMode renderingMode = RenderingMode::Dynamic);
  Esri::ArcGISRuntime::GraphicsOverlay *createGraphicLayerInternal(const TechnicalLayerType &technicalLayerType,
                                                                   RenderingMode renderingMode = RenderingMode::Dynamic);

  void applyLayerParameterToEsri();



  LOGGER_T m_logger;      ///< Interface of the Logging-Facility
};

std::ostream &operator<< (std::ostream   &stream,
                          const SituationMap::TechnicalLayerType &value);


} // namespace SituationMap