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// 
// G4UBox
//
// Class description:
//
// Wrapper class for G4Box to make use of VecGeom Box.

// Author: G.Cosmo (CERN), 13.09.2013
// --------------------------------------------------------------------
#ifndef G4UBOX_HH
#define G4UBOX_HH

#include "G4UAdapter.hh"

#if ( defined(G4GEOM_USE_USOLIDS) || defined(G4GEOM_USE_PARTIAL_USOLIDS) )

#include <VecGeom/volumes/UnplacedBox.h>

#include "G4Polyhedron.hh"

/**
 * @brief G4UBox is a wrapper class for G4Box to make use of VecGeom Box.
 */

class G4UBox : public G4UAdapter<vecgeom::UnplacedBox>
{
  using Shape_t = vecgeom::UnplacedBox;
  using Base_t = G4UAdapter<vecgeom::UnplacedBox>;

  public:

    /**
     * Constructs a box with name, and half lengths pX, pY, pZ.
     *  @param[in] pName The name of the solid.
     *  @param[in] pX Half length in X.
     *  @param[in] pY Half length in Y.
     *  @param[in] pZ Half length in Z.
     */
    G4UBox(const G4String& pName, G4double pX, G4double pY, G4double pZ);

    /**
     * Default destructor.
     */
   ~G4UBox() override = default;

    /**
     * Dispatch method for parameterisation replication mechanism and
     * dimension computation.
     */
    void ComputeDimensions(G4VPVParameterisation* p,
                           const G4int n,
                           const G4VPhysicalVolume* pRep) override;

    /**
     * Makes a clone of the object for use in multi-treading.
     *  @returns A pointer to the new cloned allocated solid.
     */
    G4VSolid* Clone() const override;

    /**
     * Accessors and modifiers.
     */
    G4double GetXHalfLength() const;
    G4double GetYHalfLength() const;
    G4double GetZHalfLength() const;
    void SetXHalfLength(G4double dx);
    void SetYHalfLength(G4double dy);
    void SetZHalfLength(G4double dz);

    /**
     * Returns the type ID, "G4Box" of the solid.
     */
    inline G4GeometryType GetEntityType() const override;

    /**
     * Returns true as the solid has only planar faces.
     */
    inline G4bool IsFaceted() const override;

    /**
     * Computes the bounding limits of the solid.
     *  @param[out] pMin The minimum bounding limit point.
     *  @param[out] pMax The maximum bounding limit point.
     */
    void BoundingLimits(G4ThreeVector& pMin, G4ThreeVector& pMax) const override;

    /**
     * Calculates the minimum and maximum extent of the solid, when under the
     * specified transform, and within the specified limits.
     *  @param[in] pAxis The axis along which compute the extent.
     *  @param[in] pVoxelLimit The limiting space dictated by voxels.
     *  @param[in] pTransform The internal transformation applied to the solid.
     *  @param[out] pMin The minimum extent value.
     *  @param[out] pMax The maximum extent value.
     *  @returns True if the solid is intersected by the extent region.
     */
    G4bool CalculateExtent(const EAxis pAxis,
                           const G4VoxelLimits& pVoxelLimit,
                           const G4AffineTransform& pTransform,
                           G4double& pMin, G4double& pMax) const override;

    /**
     * Returns a generated polyhedron as graphical representations.
     */
    G4Polyhedron* CreatePolyhedron() const override;

    /**
     * Copy constructor and assignment operator.
     */
    G4UBox(const G4UBox& rhs);
    G4UBox& operator=(const G4UBox& rhs); 
};

// --------------------------------------------------------------------
// Inline methods
// --------------------------------------------------------------------

inline G4GeometryType G4UBox::GetEntityType() const
{
  return "G4Box";
}

inline G4bool G4UBox::IsFaceted() const
{
  return true;
}

#endif  // G4GEOM_USE_USOLIDS

#endif