/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */

/*
 *  Main authors:
 *     Guido Tack <guido.tack@monash.edu>
 */

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef __MINIZINC_MZN_SOLVER_INSTANCE_HH__
#define __MINIZINC_MZN_SOLVER_INSTANCE_HH__

#include <minizinc/solver.hh>

namespace MiniZinc {

class MZNSolverOptions : public SolverInstanceBase::Options {
public:
  std::string mzn_solver;
  std::vector<std::string> mzn_flags;
  int numSols = 1;
  bool allSols = false;
  std::string parallel;
  int mzn_time_limit_ms = 0;
  int solver_time_limit_ms = 0;
  bool mzn_sigint = false;
  bool supports_t = false;
  std::vector<MZNFZNSolverFlag> mzn_solver_flags;
};

class MZNSolverInstance : public SolverInstanceBase {
private:
  std::string _mzn_solver;

public:
  MZNSolverInstance(std::ostream& log, SolverInstanceBase::Options* opt);

  ~MZNSolverInstance(void);

  Status next(void) override { return SolverInstance::ERROR; }

  Status solve(void) override;

  void processFlatZinc(void) override;
  // TODO:
  void addConstraint(const std::vector<BytecodeProc>& bs, Constraint* c) override{};
  void addVariable(Variable* var, bool isOuput) override{};
  Val getSolutionValue(Variable* var) override { return Val(); };

  void resetSolver(void) override;
};

class MZN_SolverFactory : public SolverFactory {
protected:
  virtual SolverInstanceBase* doCreateSI(std::ostream& log, SolverInstanceBase::Options* opt);

public:
  MZN_SolverFactory(void);
  virtual SolverInstanceBase::Options* createOptions(void);
  virtual std::string getDescription(SolverInstanceBase::Options* opt = NULL);
  virtual std::string getVersion(SolverInstanceBase::Options* opt = NULL);
  virtual std::string getId(void);
  virtual bool processOption(SolverInstanceBase::Options* opt, int& i,
                             std::vector<std::string>& argv);
  virtual void printHelp(std::ostream& os);
  void setAcceptedFlags(SolverInstanceBase::Options* opt,
                        const std::vector<MZNFZNSolverFlag>& flags);
};

}  // namespace MiniZinc

#endif