/*
 # ---------------------------------------------------------------------
 #
 # Copyright (c) CREATIS (Centre de Recherche en Acquisition et Traitement de l'Image
 #                        pour la SantÈ)
 # Authors : Eduardo Davila, Frederic Cervenansky, Claire Mouton
 # Previous Authors : Laurent Guigues, Jean-Pierre Roux
 # CreaTools website : www.creatis.insa-lyon.fr/site/fr/creatools_accueil
 #
 #  This software is governed by the CeCILL-B license under French law and
 #  abiding by the rules of distribution of free software. You can  use,
 #  modify and/ or redistribute the software under the terms of the CeCILL-B
 #  license as circulated by CEA, CNRS and INRIA at the following URL
 #  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html
 #  or in the file LICENSE.txt.
 #
 #  As a counterpart to the access to the source code and  rights to copy,
 #  modify and redistribute granted by the license, users are provided only
 #  with a limited warranty  and the software's author,  the holder of the
 #  economic rights,  and the successive licensors  have only  limited
 #  liability.
 #
 #  The fact that you are presently reading this means that you have had
 #  knowledge of the CeCILL-B license and that you accept its terms.
 # ------------------------------------------------------------------------ */

#include <cstdlib>
#include <fstream>
#include <iostream>
#include <vector>
#include "boost/filesystem.hpp"
//#include "boost/filesystem/operations.hpp"
//#include "boost/filesystem/path.hpp"

namespace bf = boost::filesystem;

//using namespace bbtk;

int main(int argc, char **argv)
{
  if (argc != 4)
  {
    std::cout << "usage : bbConfigurator <path_to_bbs> <package_name> <output_path>" << std::endl;
    return 1;
  }

  std::string path_bbs(argv[1]);
  std::string package_name(argv[2]);
  std::string path_out(argv[3]);
  
  std::vector<bf::path> files;

  bf::path pth(path_bbs.c_str());
  if(bf::exists(pth) && bf::is_directory(pth))
  {
    bf::directory_iterator end_itr;
    for(bf::directory_iterator itr(pth); itr != end_itr; ++itr)
    {
      if(!is_directory(itr->status()))
      {
        std::string nm(itr->path().filename().string());
        if(nm.substr(nm.size()-4) == ".bbs")
        {
          std::cout << itr->path().filename().string() << std::endl;
          files.push_back(itr->path());
        }
      }
    }
  }
  else
  {
    std::cout<< "the path to the bbs's should be a folder and not a file.";
    return 1;
  }

  for (int i = 0; i < (int)files.size()-1; ++i) {
    for (int j = i+1; j < (int)files.size(); ++j) {
      if(files[j].filename().string() < files[i].filename().string())
      {
        bf::path tmp = files[i];
        files[i] = files[j];
        files[j] = tmp;
      }
    }
  }

#ifdef WIN32
  std::string fname = path_out + "\\" + package_name + ".bbp";
#else
  std::string fname = path_out + "/" + package_name + ".bbp";
#endif
  
  std::ofstream out(fname.c_str());
  out << "#-----------------------------------------" << std::endl;
  out << "# Include script for bbtk package '" << package_name << "'" << std::endl;
  out << "# Automatically generated by bbpConfigurator" << std::endl;
  out << "#-----------------------------------------" << std::endl;
  out << "load "<< package_name << std::endl;
  out << "#-----------------------------------------" << std::endl;
  out << "package "<< package_name << std::endl;
  out << "#-----------------------------------------" << std::endl;

  //each bbs file ordered.
  //include [package_name]/boxes/[file_bbs]
  //#-----------------------------------------
  for (int i = 0; i < (int)files.size(); ++i) {
    out << "include " << package_name << "/boxes/" << files[i].filename().string() << std::endl;
    out << "#-----------------------------------------" << std::endl;
  }

  out << "endpackage" << std::endl;
  out << "#-- EOF ----------------------------------" << std::endl;

  out.close();

  return 0;
}
//==========================================================================