#ifndef SPOT_TGBA_TGBABDDDICT_H
# define SPOT_TGBA_TGBABDDDICT_H

#include <map>
#include <iostream>
#include "ltlast/formula.hh"

namespace spot
{

  /// Dictionary of BDD variables.
  struct tgba_bdd_dict
  {
    /// Formula-to-BDD-variable maps.
    typedef std::map<const ltl::formula*, int> fv_map;
    /// BDD-variable-to-formula maps.
    typedef std::map<int, const ltl::formula*> vf_map;

    fv_map now_map;		///< Maps formulae to "Now" BDD variables
    vf_map now_formula_map;	///< Maps "Now" BDD variables to formulae
    fv_map var_map;		///< Maps atomic propisitions to BDD variables
    vf_map var_formula_map;     ///< Maps BDD variables to atomic propisitions
    fv_map acc_map;		///< Maps accepting conditions to BDD variables
    vf_map acc_formula_map;	///< Maps BDD variables to accepting conditions

    /// \brief Dump all variables for debugging.
    /// \param os The output stream.
    std::ostream& dump(std::ostream& os) const;

    /// Whether this dictionary contains \a other.
    bool contains(const tgba_bdd_dict& other) const;

    tgba_bdd_dict();
    tgba_bdd_dict(const tgba_bdd_dict& other);
    tgba_bdd_dict& operator=(const tgba_bdd_dict& other);
    ~tgba_bdd_dict();
  };
}

#endif // SPOT_TGBA_TGBABDDDICT_H