// Copyright (c) 2006-2007  INRIA Sophia-Antipolis (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
// You can redistribute it and/or modify it under the terms of the GNU
// General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
// SPDX-License-Identifier: GPL-3.0+
//
// Author(s)     : Laurent Rineau

#ifndef CGAL_MAKE_SURFACE_MESH_H
#define CGAL_MAKE_SURFACE_MESH_H

#include <CGAL/license/Surface_mesher.h>


#include <CGAL/Surface_mesher_generator.h>

#include <CGAL/Surface_mesh_complex_2_in_triangulation_3.h>

#include <CGAL/Surface_mesh_cell_base_3.h>
#include <CGAL/Surface_mesh_vertex_base_3.h>

#include <CGAL/Surface_mesh_default_criteria_3.h>

#include <CGAL/iterator.h> // CGAL::inserter()

#include <CGAL/Surface_mesher/Verbose_flag.h>

#ifdef CGAL_SURFACE_MESHER_VERBOSE
#  define CGAL_SURFACE_MESHER_VERBOSITY ::CGAL::Surface_mesher::VERBOSE
#else
#  define CGAL_SURFACE_MESHER_VERBOSITY ::CGAL::Surface_mesher::NOT_VERBOSE
#endif

namespace CGAL {
template <typename C2T3,
	  typename Surface,
	  typename Criteria,
	  typename Tag>
void make_surface_mesh(C2T3& c2t3,
                       const Surface& surface,
                       const Criteria& criteria,
                       Tag tag,
                       int initial_number_of_points = 20)  // TODO: document
                                                           // this parameter
{
  typedef typename Surface_mesh_traits_generator_3<Surface>::type Traits;

  make_surface_mesh(c2t3, surface, Traits(), criteria, tag,
                    initial_number_of_points);  
}

template <typename C2T3,
	  typename SurfaceMeshTraits_3,
          typename Criteria,
          typename Tag>
void make_surface_mesh(C2T3& c2t3,
                       const typename SurfaceMeshTraits_3::Surface_3& surface,
		       const SurfaceMeshTraits_3& surface_mesh_traits,
                       const Criteria& criteria,
                       Tag,
                       int initial_number_of_points = 20)
{
//   typedef typename Make_surface_mesh_helper<
//     C2T3,
//     SurfaceMeshTraits_3,
//     Criteria,
//     Tag>::Mesher_base Mesher_base;

// #ifdef CGAL_SURFACE_MESHER_VERBOSE
//   typedef Surface_mesher::Surface_mesher<
//     Mesher_base,
//     typename Surface_mesher::details::Facet_generator<Mesher_base>::type,
//     Null_mesher_level,
//     Surface_mesher::VERBOSE> Mesher;
// #else
//   typedef Surface_mesher::Surface_mesher<Mesher_base> Mesher;
// #endif

  typedef typename Surface_mesher_generator<
    C2T3,
    SurfaceMeshTraits_3,
    Criteria,
    Tag,
    CGAL_SURFACE_MESHER_VERBOSITY >::type Mesher;

  typename SurfaceMeshTraits_3::Construct_initial_points get_initial_points =
    surface_mesh_traits.construct_initial_points_object();

  get_initial_points(surface,
                     CGAL::inserter(c2t3.triangulation()),
                     initial_number_of_points);
  Mesher mesher(c2t3, surface, surface_mesh_traits, criteria);
  mesher.refine_mesh();
  // TODO initial, then refine()
}

/** For surfaces with curve edges. Implicit SurfaceMeshTraits_3. */
template <typename C2T3,
	  typename Surface,
	  typename FacetsCriteria,
	  typename EdgesCriteria,
	  typename Tag>
void make_piecewise_smooth_surface_mesh(C2T3& c2t3,
					const Surface& surface,
					const FacetsCriteria& facets_criteria,
					const EdgesCriteria& edges_criteria,
					Tag tag,
					int initial_number_of_points = 20)
{
  typedef typename Surface_mesh_traits_generator_3<Surface>::type Traits;

  make_piecewise_smooth_surface_mesh(c2t3, surface, Traits(), 
				     facets_criteria, edges_criteria,
				     tag,
				     initial_number_of_points);  
}

/** For surfaces with curve edges. Explicit SurfaceMeshTraits_3. */
template <typename C2T3,
	  typename SurfaceMeshTraits_3,
	  typename FacetsCriteria,
	  typename EdgesCriteria,
          typename Tag>
void 
make_piecewise_smooth_surface_mesh(C2T3& c2t3,
				   const typename SurfaceMeshTraits_3::Surface_3& surface,
				   const SurfaceMeshTraits_3& surface_mesh_traits,
				   const FacetsCriteria& facets_criteria,
				   const EdgesCriteria& edges_criteria,
				   Tag,
				   int initial_number_of_points = 20)
{
  typedef typename Make_surface_mesh_helper<
    C2T3,
    SurfaceMeshTraits_3,
    FacetsCriteria,
    Tag>::Mesher_base Facets_mesher_base;

  typedef Surface_mesher::Surface_mesher_edges_level_base<
    C2T3,
    typename SurfaceMeshTraits_3::Surface_3,
    SurfaceMeshTraits_3,
    EdgesCriteria> Edges_mesher_base;

#ifdef CGAL_SURFACE_MESHER_VERBOSE
  typedef Surface_mesher::Surface_mesher<
    Edges_mesher_base,
    typename Surface_mesher::details::Edge_generator<Edges_mesher_base>::type,
    Null_mesher_level,
    Surface_mesher::VERBOSE> Edges_level;
#else
  typedef Surface_mesher::Surface_mesher<
    Edges_mesher_base,
    typename Surface_mesher::details::Edge_generator<Edges_mesher_base>::type
  > Edges_level;
#endif

#ifdef CGAL_SURFACE_MESHER_VERBOSE
  typedef Surface_mesher::Surface_mesher<
    Facets_mesher_base,
    typename Surface_mesher::details::Facet_generator<Facets_mesher_base>::type,
    Edges_level,
    Surface_mesher::VERBOSE> Facets_level;
#else
  typedef Surface_mesher::Surface_mesher<
    Facets_mesher_base,
    typename Surface_mesher::details::Facet_generator<Facets_mesher_base>::type,
    Edges_level> Facets_level;
#endif

  typename SurfaceMeshTraits_3::Construct_initial_points get_initial_points =
    surface_mesh_traits.construct_initial_points_object();

  typedef Surface_mesher::Visitor<typename C2T3::Triangulation, 
    Facets_level, Null_mesh_visitor> Edges_level_visitor;
  typedef Surface_mesher::Edges_level_visitor<typename C2T3::Triangulation, 
    Edges_level, Edges_level_visitor> Facets_and_edges_visitor;

  get_initial_points(surface,
                     CGAL::inserter(c2t3.triangulation()),
                     initial_number_of_points);
  Edges_level edges_level(c2t3, surface, surface_mesh_traits, edges_criteria);
  Facets_level facets_level(c2t3, surface, surface_mesh_traits, facets_criteria,
			    edges_level);

  Null_mesh_visitor null_mesh_visitor;
  Edges_level_visitor edges_level_visitor(&facets_level, &null_mesh_visitor);
  Facets_and_edges_visitor facets_and_edges_visitor(&edges_level, &edges_level_visitor);

  edges_level.init();
  edges_level.refine_mesh();
  facets_level.scan_triangulation();
  facets_level.refine_mesh(facets_and_edges_visitor);
}

} // end namespace CGAL

#endif // CGAL_MAKE_SURFACE_MESH_H