#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab 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.
 *
 * HeuristicLab 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 HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Data;
using HeuristicLab.Encodings.IntegerVectorEncoding;
using HeuristicLab.Operators;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
using HEAL.Attic;

namespace HeuristicLab.Problems.GeneralizedQuadraticAssignment {
  [Item("GQAPSolutionCreator", "Base class for solution creators of the Generalized Quadratic Assignment Problem.")]
  [StorableType("1FD56558-5E7C-470C-8E7C-B3CEF7DB1D61")]
  public abstract class GQAPSolutionCreator : SingleSuccessorOperator, IProblemInstanceAwareGQAPOperator, IGQAPSolutionCreator {

    #region Parameter Descriptions
    public static readonly string AssignmentDescription = "The vector that encodes the assignment.";
    #endregion

    public ILookupParameter<IntegerVector> IntegerVectorParameter {
      get { return (ILookupParameter<IntegerVector>)Parameters["IntegerVector"]; }
    }
    public ILookupParameter<GQAPInstance> ProblemInstanceParameter {
      get { return (ILookupParameter<GQAPInstance>)Parameters["ProblemInstance"]; }
    }
    public IValueLookupParameter<IntValue> LengthParameter {
      get { return (IValueLookupParameter<IntValue>)Parameters["Length"]; }
    }
    public IValueLookupParameter<IntMatrix> BoundsParameter {
      get { return (IValueLookupParameter<IntMatrix>)Parameters["Bounds"]; }
    }

    [StorableConstructor]
    protected GQAPSolutionCreator(StorableConstructorFlag _) : base(_) { }
    protected GQAPSolutionCreator(GQAPSolutionCreator original, Cloner cloner)
      : base(original, cloner) { }
    public GQAPSolutionCreator()
      : base() {
      Parameters.Add(new LookupParameter<IntegerVector>("IntegerVector", AssignmentDescription));
      Parameters.Add(new LookupParameter<GQAPInstance>("ProblemInstance", GQAP.ProblemInstanceDescription));
      Parameters.Add(new ValueLookupParameter<IntValue>("Length", "The length of the vector.") { Hidden = true });
      Parameters.Add(new ValueLookupParameter<IntMatrix>("Bounds", "") { Hidden = true });
    }

    public override IOperation Apply() {
      IntegerVectorParameter.ActualValue = CreateSolution(ProblemInstanceParameter.ActualValue);
      return base.Apply();
    }

    protected abstract IntegerVector CreateSolution(GQAPInstance problemInstance);
  }
}