#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2014 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;

namespace HeuristicLab.Problems.Orienteering {
  public class OrienteeringEvaluator : InstrumentedOperator, IOrienteeringEvaluator {
    public ILookupParameter<DoubleValue> QualityParameter {
      get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
    }
    public ILookupParameter<IntegerVector> IntegerVectorParameter {
      get { return (ILookupParameter<IntegerVector>)Parameters["IntegerVector"]; }
    }
    public ILookupParameter<DoubleArray> ScoresParameter {
      get { return (ILookupParameter<DoubleArray>)Parameters["Scores"]; }
    }

    [StorableConstructor]
    protected OrienteeringEvaluator(bool deserializing)
      : base(deserializing) {
    }
    protected OrienteeringEvaluator(OrienteeringEvaluator original, Cloner cloner)
      : base(original, cloner) {
    }
    public override IDeepCloneable Clone(Cloner cloner) {
      return new OrienteeringEvaluator(this, cloner);
    }
    public OrienteeringEvaluator()
      : base() {
      Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The evaluated quality of the Orienteering solution."));
      Parameters.Add(new LookupParameter<IntegerVector>("IntegerVector", "The Orienteering Solution given in path representation."));
      Parameters.Add(new LookupParameter<DoubleArray>("Scores", "The scores of the points."));
    }

    public class OrienteeringEvaluation {
      public DoubleValue Quality;
    }

    public static OrienteeringEvaluation Apply(IntegerVector solution, DoubleArray scores) {
      // TODO distance penalty
      double score = 0.0;

      for (int i = 0; i < solution.Length; i++) {
        score += scores[i];
      }

      return new OrienteeringEvaluation {
        Quality = new DoubleValue(score)
      };
    }

    public override IOperation InstrumentedApply() {
      var evaluation = Apply(IntegerVectorParameter.ActualValue, ScoresParameter.ActualValue);

      QualityParameter.ActualValue = evaluation.Quality;

      return base.InstrumentedApply();
    }
  }
}