#include <CGAL/intersections.h>

#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>

#include <CGAL/Mesh_triangulation_3.h>
#include <CGAL/Mesh_complex_3_in_triangulation_3.h>
#include <CGAL/Mesh_criteria_3.h>

#include <CGAL/Labeled_mesh_domain_3.h>
#include <CGAL/Mesh_3/polyhedral_to_labeled_function_wrapper.h>
#include <CGAL/make_mesh_3.h>

// IO
#include <CGAL/IO/Polyhedron_iostream.h>
#include <CGAL/IO/File_medit.h>


// Domain
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Polyhedron_3<K> Polyhedron;
typedef CGAL::Mesh_3::Polyhedral_tolerance_to_labeled_function_wrapper<Polyhedron, K> Polyhedral_wrapper;
typedef CGAL::Labeled_mesh_domain_3<Polyhedral_wrapper, K> Mesh_domain;

// Triangulation
typedef CGAL::Mesh_triangulation_3<Mesh_domain>::type Tr;
typedef CGAL::Mesh_complex_3_in_triangulation_3<Tr> C3t3;

// Mesh Criteria
typedef CGAL::Mesh_criteria_3<Tr> Mesh_criteria;
typedef Mesh_criteria::Facet_criteria Facet_criteria;
typedef Mesh_criteria::Cell_criteria Cell_criteria;


int main(int argc, char*argv[])
{
  const char* fname = (argc>1)?argv[1]:"data/elephant.off";
  // Create and fill polyhedron
  Polyhedron polyhedron;
  std::ifstream input(fname);
  input >> polyhedron;
  if(input.bad()){
    std::cerr << "Error: Cannot read file " <<  fname << std::endl;
    return EXIT_FAILURE;
  }
  input.close();

  // Implicit function built by AABB_tree projection queries
  Polyhedral_wrapper polyhedral_wrapper(polyhedron, 0.03);
  Mesh_domain domain(polyhedral_wrapper, polyhedral_wrapper.bounding_sphere(), 1e-4);

  // Set mesh criteria
  Facet_criteria facet_criteria(20, 5, 0.01); // angle, size, approximation
  Cell_criteria cell_criteria(4, 0.05); // radius-edge ratio, size
  Mesh_criteria criteria(facet_criteria, cell_criteria);

  // Mesh generation
  C3t3 c3t3 = CGAL::make_mesh_3<C3t3>(domain, criteria);

  // Output
  std::ofstream medit_file("out.mesh");
  CGAL::output_to_medit(medit_file, c3t3);

  return 0;
}
