/**
  * @RDE_HEADER@
  * Manage and combine several ElevationMap
  * $Id$
  * $HeadURL$
  * $Author$
  */

#pragma once

#include "elevation_map_helper.h"
#include <ElevationMap/situationmapelevationmap_export.h>
#include <Common/situation_map_logging.h>

#include <QObject>

namespace SituationMap
{

// forward:
class ElevationMap;

//------------------------------------------------------------------------------------------------------------
// ElevationMapManager
//------------------------------------------------------------------------------------------------------------
class SITUATIONMAPELEVATIONMAP_EXPORT ElevationMapManager final : public QObject
{
  using BaseClass = QObject;

public:
  ElevationMapManager();
  ElevationMapManager(const ElevationMapManager &)              = delete;
  ElevationMapManager &operator = (const ElevationMapManager &) = delete;
  ~ElevationMapManager();

  int init(const QStringList &filePaths_rough_to_fine);
  void cleanupCurrentContent();

  bool waitForInitialization();
  bool isValid() const;


  double elevation(double lon_rad, double lat_rad, bool *bIsCovered = nullptr) const;
  double elevation(double lon_rad, double lat_rad, double defaultValue, bool *bIsCovered = nullptr) const;

  // united extent of seperate files:
  QRectF simpleUnitedExtent() const;

  bool contains(const QPointF &point) const;

  // Line of Sight Profile: berücksichtigt Erdkrümmung und WGS84 Erdellipsoid
  void LOSProfile(const QPointF &start, const QPointF &end, LOSVector &losProfile);

  /*! \name Line of Sight */
  //@{
  enum class LineOfSight { LOS_UNDEFINED,
                           LOS_ERROR,
                           LOS_VISIBLE,
                           LOS_INVISIBLE };

  LineOfSight lineOfSightCalculation(const LOSVector &losProfile,
                                     double centerHat,
                                     double objHat) const;

  LineOfSight lineOfSightCalculation(const LtsUtils::QPoint3D &startPointGeo_absZ,
                                     const LtsUtils::QPoint3D &endPointGeo_absZ);

  LineOfSight lineOfSightCalculation(const QPointF &startPointGeo, double startHat,
                                     const QPointF &endPointGeo, double endHat);

  //@}

protected:

  class Private;

  Private  *d;
  LOGGER_T  m_logger;      ///< Interface of the Logging-Facility
}; // ElevationMapManager


} // SituationMap