#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2015 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.PermutationEncoding;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;

namespace HeuristicLab.Problems.PTSP {
  [Item("PTSP 2.5-MoveEvaluator", "Operator that evaluates 2.5-p-opt moves of PTSP")]
  [StorableClass]
  public class PTSPTwoPointFiveMoveEvaluator : EstimatedPTSPMoveEvaluator, ITwoPointFiveMoveOperator {

    public ILookupParameter<TwoPointFiveMove> TwoPointFiveMoveParameter {
      get { return (ILookupParameter<TwoPointFiveMove>)Parameters["TwoPointFiveMove"]; }
    }

    [StorableConstructor]
    protected PTSPTwoPointFiveMoveEvaluator(bool deserializing) : base(deserializing) { }
    protected PTSPTwoPointFiveMoveEvaluator(PTSPTwoPointFiveMoveEvaluator original, Cloner cloner) : base(original, cloner) { }
    public PTSPTwoPointFiveMoveEvaluator()
      : base() {
      Parameters.Add(new LookupParameter<TwoPointFiveMove>("TwoPointFiveMove", "The move to evaluate."));
    }

    public override IDeepCloneable Clone(Cloner cloner) {
      return new PTSPTwoPointFiveMoveEvaluator(this, cloner);
    }

    protected override double EvaluateByCoordinates(Permutation permutation, DoubleMatrix coordinates, DistanceCalculator distanceCalculator) {
      var move = TwoPointFiveMoveParameter.ActualValue;
      var realizations = RealizationsParameter.ActualValue;
      return EvaluateByCoordinates(permutation, coordinates, distanceCalculator, move, realizations);
    }

    public static double EvaluateByCoordinates(Permutation permutation, DoubleMatrix coordinates, DistanceCalculator distanceCalculator, TwoPointFiveMove move, ItemList<BoolArray> realizations) {
      if (move.IsInvert) {
        return PTSPEstimatedInversionMoveEvaluator.EvaluateByCoordinates(permutation,
          new InversionMove(move.Index1, move.Index2, move.Permutation),
          coordinates, distanceCalculator, realizations);
      } else {
        return PTSPEstimatedInsertionMoveEvaluator.EvaluateByCoordinates(permutation,
          new TranslocationMove(move.Index1, move.Index1, move.Index2),
          coordinates, distanceCalculator, realizations);
      }
    }

    protected override double EvaluateByDistanceMatrix(Permutation permutation, DistanceMatrix distanceMatrix) {
      var move = TwoPointFiveMoveParameter.ActualValue;
      var realizations = RealizationsParameter.ActualValue;
      return EvaluateByDistanceMatrix(permutation, distanceMatrix, move, realizations);
    }

    public static double EvaluateByDistanceMatrix(Permutation permutation, DistanceMatrix distanceMatrix, TwoPointFiveMove move, ItemList<BoolArray> realizations) {
      if (move.IsInvert) {
        return PTSPEstimatedInversionMoveEvaluator.EvaluateByDistanceMatrix(permutation,
          new InversionMove(move.Index1, move.Index2, move.Permutation),
          distanceMatrix, realizations);
      } else {
        return PTSPEstimatedInsertionMoveEvaluator.EvaluateByDistanceMatrix(permutation,
          new TranslocationMove(move.Index1, move.Index1, move.Index2),
          distanceMatrix, realizations);
      }
    }
  }
}