// Copyright (C) 2009, 2011 Laboratoire de Recherche et Développement
// de l'Epita (LRDE).
// Copyright (C) 2003, 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
// département Systèmes Répartis Coopératifs (SRC), Université Pierre
// et Marie Curie.
//
// This file is part of Spot, a model checking library.
//
// Spot is free software; 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 2 of the License, or
// (at your option) any later version.
//
// Spot is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Spot; see the file COPYING.  If not, write to the Free
// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.

#include "dupexp.hh"
#include <sstream>
#include <string>
#include <map>
#include "reachiter.hh"

namespace spot
{
  namespace
  {
    template <class T>
    class dupexp_iter: public T
    {
    public:
      dupexp_iter(const tgba* a)
	: T(a), out_(new tgba_explicit_string(a->get_dict()))
      {
	out_->copy_acceptance_conditions_of(a);
      }

      tgba_explicit_string*
      result()
      {
	return out_;
      }

      void
      process_link(const state* in_s, int in,
		   const state* out_s, int out,
		   const tgba_succ_iterator* si)
      {
	std::ostringstream in_name;
	in_name << "(#" << in << ") " << this->aut_->format_state(in_s);
	std::ostringstream out_name;
	out_name << "(#" << out << ") " << this->aut_->format_state(out_s);

	tgba_explicit::transition* t =
	  out_->create_transition(in_name.str(), out_name.str());
	out_->add_conditions(t, si->current_condition());
	out_->add_acceptance_conditions(t, si->current_acceptance_conditions());
      }

    private:
      tgba_explicit_string* out_;
    };

  } // anonymous

  tgba_explicit*
  tgba_dupexp_bfs(const tgba* aut)
  {
    dupexp_iter<tgba_reachable_iterator_breadth_first> di(aut);
    di.run();
    return di.result();
  }

  tgba_explicit*
  tgba_dupexp_dfs(const tgba* aut)
  {
    dupexp_iter<tgba_reachable_iterator_depth_first> di(aut);
    di.run();
    return di.result();
  }

}