// Copyright (c) 2017 GeometryFactory Sarl (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1.2/Shape_detection/include/CGAL/Shape_detection/Efficient_RANSAC/property_map.h $
// $Id: include/CGAL/Shape_detection/Efficient_RANSAC/property_map.h 37e2b278910 $
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
//
//
// Author(s)     : Simon Giraudot
//

#include <CGAL/license/Shape_detection.h>
#include <CGAL/Shape_detection/Efficient_RANSAC/Shape_base.h>
#include <CGAL/Shape_detection/Efficient_RANSAC.h>

#ifndef CGAL_SHAPE_DETECTION_EFFICIENT_RANSAC_PROPERTY_MAP_H
#define CGAL_SHAPE_DETECTION_EFFICIENT_RANSAC_PROPERTY_MAP_H

namespace CGAL {
namespace Shape_detection {

/*!
   \ingroup PkgShapeDetectionRANSACPropertyMaps

   Property map that associates a point index to its assigned shape
   found by the `CGAL::Shape_detection::Efficient_RANSAC` algorithm.
 */
  template <typename Traits>
  class Point_to_shape_index_map
  {
    typedef CGAL::Shape_detection::Shape_base<Traits> Shape;
    std::shared_ptr<std::vector<int> > m_indices;

  public:
    typedef std::size_t key_type; ///< %Index of the point in the random access point range.
    typedef int value_type; ///< %Index of the shape (-1 if the point is not assigned to any shape).
    typedef value_type reference;
    typedef boost::readable_property_map_tag category;

    /// \cond SKIP_IN_MANUAL
    Point_to_shape_index_map () { }
    /// \endcond

    /*!
      Constructs a property map to map points to their associated shape.

      \note `shapes` must be a range of shapes detected using `points`.

      \tparam ShapeRange must be an `Iterator_range` with a bidirectional
      constant iterator type with value type
      `std::shared_ptr<CGAL::Shape_detection::Shape_base<Traits> >`.
     */
    template <typename PointRange, typename ShapeRange>
    Point_to_shape_index_map (const PointRange& points,
                              const ShapeRange& shapes)
      : m_indices (new std::vector<int>(points.size(), -1))
    {
      int idx = 0;
      for (typename ShapeRange::const_iterator it = shapes.begin();
             it != shapes.end(); ++ it)
      {
        for (std::size_t j = 0; j < (*it)->indices_of_assigned_points ().size (); ++ j)
          (*m_indices)[(*it)->indices_of_assigned_points()[j]] = idx;
        ++ idx;
      }
    }

    inline friend value_type get (const Point_to_shape_index_map& pm, const key_type& k)
    {
      return (*(pm.m_indices))[k];
    }

  };

/*!
   \ingroup PkgShapeDetectionRANSACPropertyMaps

   Property map that associates a detected plane object
   `CGAL::Shape_detection::Plane` to a `CGAL::Plane_3` object.
 */
  template <typename Traits>
  class Plane_map
  {
  public:
    typedef CGAL::Shape_detection::Plane<Traits> Plane_shape;
    typedef std::shared_ptr<Plane_shape> key_type;
    typedef typename Traits::Plane_3 value_type;
    typedef value_type reference;
    typedef boost::read_write_property_map_tag category;

    inline friend value_type get (const Plane_map&, const key_type& k)
    {
      return value_type(*k);
    }

    inline friend void put (const Plane_map&, const key_type& k, const value_type& v)
    {
      k->update(v);
    }

  };

} // namespace Shape_detection
} // namespace CGAL

#endif // CGAL_SHAPE_DETECTION_EFFICIENT_RANSAC_PROPERTY_MAP_H
