/*    This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
 *    See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
 *    Author(s):       Mathieu Carrière
 *
 *    Copyright (C) 2017 Inria
 *
 *    Modification(s):
 *      - YYYY/MM Author: Description of the modification
 */

#define BOOST_TEST_DYN_LINK
#define BOOST_TEST_MODULE "graph_induced_complex"

#include <boost/test/unit_test.hpp>

#include <limits>
#include <string>
#include <vector>

#include <gudhi/GIC.h>
#include <gudhi/distance_functions.h>
#include <gudhi/reader_utils.h>

BOOST_AUTO_TEST_CASE(check_nerve) {
  using Point = std::vector<float>;
  Gudhi::cover_complex::Cover_complex<Point> N;
  N.set_type("Nerve");
  std::string cloud_file_name("data/cloud");
  N.read_point_cloud(cloud_file_name);
  N.set_color_from_coordinate();
  std::string graph_file_name("data/graph");
  N.set_graph_from_file(graph_file_name);
  std::string cover_file_name("data/cover");
  N.set_cover_from_file(cover_file_name);
  N.find_simplices();
  Gudhi::Simplex_tree<> stree;
  N.create_complex(stree);

  BOOST_CHECK(stree.num_vertices() == 3);
  BOOST_CHECK((stree.num_simplices() - stree.num_vertices()) == 0);
  BOOST_CHECK(stree.dimension() == 0);
}

BOOST_AUTO_TEST_CASE(check_GIC) {
  using Point = std::vector<float>;
  Gudhi::cover_complex::Cover_complex<Point> GIC;
  GIC.set_type("GIC");
  std::string cloud_file_name("data/cloud");
  GIC.read_point_cloud(cloud_file_name);
  GIC.set_color_from_coordinate();
  std::string graph_file_name("data/graph");
  GIC.set_graph_from_file(graph_file_name);
  std::string cover_file_name("data/cover");
  GIC.set_cover_from_file(cover_file_name);
  GIC.find_simplices();
  Gudhi::Simplex_tree<> stree;
  GIC.create_complex(stree);

  BOOST_CHECK(stree.num_vertices() == 3);
  BOOST_CHECK((stree.num_simplices() - stree.num_vertices()) == 4);
  BOOST_CHECK(stree.dimension() == 2);
}

BOOST_AUTO_TEST_CASE(check_voronoiGIC) {
  using Point = std::vector<float>;
  Gudhi::cover_complex::Cover_complex<Point> GIC;
  GIC.set_type("GIC");
  std::string cloud_file_name("data/cloud");
  GIC.read_point_cloud(cloud_file_name);
  GIC.set_color_from_coordinate();
  std::string graph_file_name("data/graph");
  GIC.set_graph_from_file(graph_file_name);
  GIC.set_cover_from_Voronoi(Gudhi::Euclidean_distance(), 2);
  GIC.find_simplices();
  Gudhi::Simplex_tree<> stree;
  GIC.create_complex(stree);

  BOOST_CHECK(stree.num_vertices() == 2);
  BOOST_CHECK((stree.num_simplices() - stree.num_vertices()) == 1);
  BOOST_CHECK(stree.dimension() == 1);
}