// Copyright (c) 2014
// INRIA Saclay-Ile de France (France)
//
// This file is part of CGAL (www.cgal.org)
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1/NewKernel_d/include/CGAL/NewKernel_d/Kernel_3_interface.h $
// $Id: include/CGAL/NewKernel_d/Kernel_3_interface.h b26b07a1242 $
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
//
// Author(s)     : Marc Glisse

#ifndef CGAL_KD_KERNEL_3_INTERFACE_H
#define CGAL_KD_KERNEL_3_INTERFACE_H

#include <CGAL/NewKernel_d/functor_tags.h>
#include <CGAL/transforming_iterator.h>
#include <CGAL/NewKernel_d/utils.h>
#include <CGAL/tuple.h>


namespace CGAL {
template <class Base_> struct Kernel_3_interface : public Base_ {
        typedef Base_ Base;
        typedef Kernel_3_interface<Base> Kernel;
        typedef typename Get_type<Base, RT_tag>::type RT;
        typedef typename Get_type<Base, FT_tag>::type FT;
        typedef typename Get_type<Base, Bool_tag>::type Boolean;
        typedef typename Get_type<Base, Sign_tag>::type Sign;
        typedef typename Get_type<Base, Comparison_result_tag>::type Comparison_result;
        typedef typename Get_type<Base, Orientation_tag>::type Orientation;
        typedef typename Get_type<Base, Oriented_side_tag>::type Oriented_side;
        typedef typename Get_type<Base, Bounded_side_tag>::type Bounded_side;
        typedef typename Get_type<Base, Angle_tag>::type Angle;
        typedef typename Get_type<Base, Point_tag>::type        Point_3;
        typedef typename Get_type<Base, Vector_tag>::type        Vector_3;
        typedef typename Get_type<Base, Segment_tag>::type        Segment_3;
        typedef std::tuple<Point_3,Point_3,Point_3>                Triangle_3; // placeholder
        typedef std::tuple<Point_3,Point_3,Point_3,Point_3>        Tetrahedron_3; // placeholder
        struct Compare_xyz_3 {
                typedef typename Get_functor<Base, Compare_lexicographically_tag>::type CL;
                typedef typename CL::result_type result_type;
                CL cl;
                Compare_xyz_3(Kernel const&k):cl(k){}
                result_type operator()(Point_3 const&a, Point_3 const&b) {
                        return cl(a,b);
                }
        };
        struct Compare_distance_3 {
                typedef typename Get_functor<Base, Compare_distance_tag>::type CD;
                typedef typename CD::result_type result_type;
                CD cd;
                Compare_distance_3(Kernel const&k):cd(k){}
                result_type operator()(Point_3 const&a, Point_3 const&b, Point_3 const&c) {
                        return cd(a,b,c);
                }
                result_type operator()(Point_3 const&a, Point_3 const&b, Point_3 const&c, Point_3 const&d) {
                        return cd(a,b,c,d);
                }
        };
        struct Orientation_3 {
                typedef typename Get_functor<Base, Orientation_of_points_tag>::type O;
                typedef typename O::result_type result_type;
                O o;
                Orientation_3(Kernel const&k):o(k){}
                result_type operator()(Point_3 const&a, Point_3 const&b, Point_3 const&c, Point_3 const&d) {
                        //return o(a,b,c,d);
                        Point_3 const* t[4]={&a,&b,&c,&d};
                        return o(make_transforming_iterator<Dereference_functor>(t+0),make_transforming_iterator<Dereference_functor>(t+4));

                }
        };
        struct Side_of_oriented_sphere_3 {
                typedef typename Get_functor<Base, Side_of_oriented_sphere_tag>::type SOS;
                typedef typename SOS::result_type result_type;
                SOS sos;
                Side_of_oriented_sphere_3(Kernel const&k):sos(k){}
                result_type operator()(Point_3 const&a, Point_3 const&b, Point_3 const&c, Point_3 const&d, Point_3 const&e) {
                        //return sos(a,b,c,d);
                        Point_3 const* t[5]={&a,&b,&c,&d};
                        return sos(make_transforming_iterator<Dereference_functor>(t+0),make_transforming_iterator<Dereference_functor>(t+4),e);
                }
        };
        typedef typename Get_functor<Base, Construct_ttag<Point_tag> >::type Construct_point_3;

        // I don't have the Coplanar predicates (yet)


        Compare_xyz_3 compare_xyz_3_object()const{ return Compare_xyz_3(*this); }
        Compare_distance_3 compare_distance_3_object()const{ return Compare_distance_3(*this); }
        Orientation_3 orientation_3_object()const{ return Orientation_3(*this); }
        Side_of_oriented_sphere_3 side_of_oriented_sphere_3_object()const{ return Side_of_oriented_sphere_3(*this); }
        Construct_point_3 construct_point_3_object()const{ return Construct_point_3(*this); }
};
}

#endif

