// Copyright 2008, 2009 Brady J. Garvin

// This file is part of Covering Arrays by Simulated Annealing (CASA).

// CASA 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 3 of the License, or
// (at your option) any later version.

// CASA 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 CASA.  If not, see <http://www.gnu.org/licenses/>.


#ifndef COVERING_ARRAY_SPACE_H
#define COVERING_ARRAY_SPACE_H

#include <cassert>

#include "Array.H"

#include "search/StateSpace.H"

#include "covering/state/CoveringArray.H"
#include "covering/bookkeeping/Options.H"
#include "covering/cost/CoverageCost.H"

#include "sat/SAT.H"

class CoveringArraySpace : public StateSpace<CoveringArray, CoverageCost>{
protected:
  unsigned				strength;
  Options				options;
  mutable SATSolver			solver;
public:
  CoveringArraySpace(unsigned strength, Options options);
  virtual ~CoveringArraySpace() {}
  virtual CoveringArray createStartState(unsigned rows) const = 0;
  SATSolver&getSolver() {
    return solver;
  }
  const SATSolver&getSolver() const {
    return solver;
  }
  unsigned computeTargetCoverage() const;
};

#endif