/**
  * @RDE_HEADER@
  * Interface-Implementation of EsriDictionaryProcessor
  * $Id$
  * $HeadURL$
  * $Author$
  */
#pragma once

// Own
#include <Symbology/symbol_dictionary.h>       // Our interface "SymbolDictionary"
#include "advanced_symbology_logging.h"
#include <Symbology/sidc_definitions.h>
#include <Symbology/sidc_codec.h>


// Qt
#include <QImage>


// Esri
#include <arcgis/DictionarySymbolStyle.h>




//----------------------------------------------------------------------------
namespace AdvancedSymbology
{

struct createSwatchParameter
{
  static constexpr int m_width         = 128;
  static constexpr int m_height        =  64;
  static constexpr float m_screenScale =   2;

};
static constexpr createSwatchParameter CREATE_SWATCH_PARAMETER = createSwatchParameter();

static constexpr float CREATE_SWATCH_SCREEN_SCALE = 5;


QImage scaleImage(const QImage &image, int sizeL = 100);


/**
 * @brief The EsriDictionaryProcessor class analyses the stylx files of ESRI.
 * The process is seperated:
 * Setup: The EsriDictionaryProcessor has to be set up with the desired
 * SymbologyType and initialized with the loaded raw Esri::ArcGISRuntime::DictionarySymbolStyle.
 * Step 1:
 * Search all from esri_dictionary (prepare)
 * When this is finished,
 * Step 2:
 * For all results the associated Esri::ArcGISRuntime:Symbol has to be retrieved.
 * This has to be done in the mainThread (syncTableWithinMainThread).
 * Step 3:
 * The single jobs can be triggered and performed in seperate threads:
 * Job 1: startBaseSymbolCodeToPropertyTable();
 * Job 2: startModifierTable();
 * And the end of each job it´s checked if all jobs are finished (checkIfAllAreDone).
 * If so the signal allIsDone is emitted.
 *
 * Now the BaseSymbolCodeToPropertyTableFinished and the ModifierTable is prepared.
 */
class EsriDictionaryProcessor : public QObject
{
  Q_OBJECT

public:
  /*! \name Construction, Destruction */
  //@{
  explicit EsriDictionaryProcessor(SymbologyType symbologyType);
  virtual ~EsriDictionaryProcessor();

  void cancel();
  void waitForFinished();
  //@}

  virtual bool searchResultIsValid(const QHash<QString, int> &key8LookupTable,
                                   const Esri::ArcGISRuntime::SymbolStyleSearchResult &resultItem,
                                   QString *toBeRemovedFromName = nullptr) = 0;

  //
  // Common:
  //
  /*! \name Common */
  //@{
  void init(Esri::ArcGISRuntime::DictionarySymbolStyle *loaded_esri_dictionary);
  void prepare();

protected:
  //@}


  //
  // Job 1: BaseSymbolCodeToPropertyTable
  //
public:
  /*! \name Job 1: BaseSymbolCodeToPropertyTable */
  //@{
  void startBaseSymbolCodeToPropertyTable();
  virtual bool processBaseSymbolCodeToPropertyTable() = 0;
  bool baseSymbolCodeToPropertyTableFinished()
  {
    return m_baseSymbolCodeToSymbolPropertyTableFilled;
  }

  const SidcCodec::SidcHashTable<SymbolProperties> baseSymbolCodeToSymbolPropertyTable() const
  {
    return m_baseSymbolCodeToSymbolPropertyTable;
  }

  //@}


  //
  // Job 2: ModifierTable
  //
public:
  /*! \name Job 2: ModifierTable */
  //@{
  void startModifierTable();
  virtual bool processModifierTable() = 0;
  bool modifierTableFinished()
  {
    return m_modifierTableFilled;
  }

  QStringList symbolModifierKeys() const;

  bool symbolModifierData(const QString &key, ModifierData &data) const;

  QVector<ModifierData> symbolModifierList(SidcDefinitions::SymbolSet symbolSet, unsigned int modifierSector) const;

  //@}


  //
  // Job n:
  //
public:



  //
  // common final:
  //
public:
  bool allJobsDone() const;

Q_SIGNALS:
  void allIsDone();
  void baseSymbolCodeToPropertyTableDone();
  void modifierTableDone();


protected Q_SLOTS:
  void onSearchSymbolsCompletedPropertyTable(QUuid /*ssTaskId*/, Esri::ArcGISRuntime::SymbolStyleSearchResultListModel *searchResults);
  void onEsriSymbolSwatchCompleted(const QUuid &csTaskId, const QImage &image);


protected:
  void checkIfAllAreDone();
  void searchSymbols();
  void syncTableWithinMainThread();

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

  Esri::ArcGISRuntime::DictionarySymbolStyle          *m_esri_dictionary = nullptr;

  QList<Esri::ArcGISRuntime::SymbolStyleSearchResult> m_searchResultList;
  QList<Esri::ArcGISRuntime::SymbolStyleSearchResult> m_searchResultListValid;

  // originalKey
  struct EsriSymbol
  {
    Esri::ArcGISRuntime::SymbolStyleSearchResult  m_sssResult;
    mutable Esri::ArcGISRuntime::Symbol          *esriSymbol = nullptr;
    mutable QImage                                swatchImage;
  };
  QHash<QString, EsriSymbol>                          m_originalKeyToEsriSymbol;

  // symbolPropertyImage-Uuid -> SymbolResult
  mutable QMap<QUuid, QWeakPointer<SymbolResult>>     m_symbolPropertyImage2symbolResult;

public:
  bool symbolPropertyImageContains(const QString &originalKey) const;
  QSharedPointer<SymbolResult> symbolPropertyImage(QSharedPointer<SymbolResult> symResult, const QString &originalKey) const;

  const QList<Esri::ArcGISRuntime::SymbolStyleSearchResult> & getSearchResultList() const { return m_searchResultList; }
  const QList<Esri::ArcGISRuntime::SymbolStyleSearchResult> & getSearchResultListValid() const { return m_searchResultListValid; }

protected:
  //
  // Job 1: baseSymbolCodeToSymbolPropertyTable:
  //
  SidcCodec::SidcHashTable<SymbolProperties> m_baseSymbolCodeToSymbolPropertyTable;
  bool                                       m_baseSymbolCodeToSymbolPropertyTableFilled = false;
  QFuture<bool>                              m_baseSymbolCodeToSymbolPropertyTableWatcher;




  //
  // Job 2:
  //
  QMap<QString, ModifierData>      m_modifierTable;
  bool                             m_modifierTableFilled = false;
  QFuture<bool>                    m_modifierTableWatcher;

  //
  // Job n:
  //



};

} // namespace AdvancedSymbology