#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2012 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 System;
using System.Collections.Generic;
using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Data;
using HeuristicLab.Operators;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;

namespace HeuristicLab.Encodings.ConditionActionEncoding {
  [Item("ExecuteGASubsumptionOperator", "Description missing")]
  [StorableClass]
  public class ExecuteGASubsumptionOperator : SingleSuccessorOperator {

    #region Parameter Properties
    public ILookupParameter<ItemArray<IntValue>> TempIDParameter {
      get { return (ILookupParameter<ItemArray<IntValue>>)Parameters["TempID"]; }
    }
    public ILookupParameter<ItemArray<IntValue>> NumerositiesParameter {
      get { return (ILookupParameter<ItemArray<IntValue>>)Parameters["Numerosities"]; }
    }
    public ILookupParameter<ItemArray<IntValue>> SubsumedByParameter {
      get { return (ILookupParameter<ItemArray<IntValue>>)Parameters["SubsumedBy"]; }
    }
    #endregion

    [StorableConstructor]
    protected ExecuteGASubsumptionOperator(bool deserializing) : base(deserializing) { }
    protected ExecuteGASubsumptionOperator(ExecuteGASubsumptionOperator original, Cloner cloner)
      : base(original, cloner) {
    }
    public ExecuteGASubsumptionOperator()
      : base() {
      Parameters.Add(new ScopeTreeLookupParameter<IntValue>("TempID"));
      Parameters.Add(new ScopeTreeLookupParameter<IntValue>("Numerosities"));
      Parameters.Add(new ScopeTreeLookupParameter<IntValue>("SubsumedBy"));
    }
    public override IDeepCloneable Clone(Cloner cloner) {
      return new ExecuteGASubsumptionOperator(this, cloner);
    }

    public override IOperation Apply() {
      var tempId = TempIDParameter.ActualValue;
      var numerosities = NumerositiesParameter.ActualValue;
      var subsumedBy = SubsumedByParameter.ActualValue;

      if (tempId.Length != numerosities.Length || tempId.Length != subsumedBy.Length) {
        throw new ArgumentException("The number of tempId, numerosity and subsumedBy values is not equal.");
      }

      IList<int> ids = new List<int>();
      for (int i = 0; i < tempId.Length; i++) {
        if (subsumedBy[i].Value >= 0) {
          ids.Add(subsumedBy[i].Value);
          numerosities[i].Value = 0;
        }
      }

      foreach (var id in ids) {
        var subsumedId = tempId.FindIndex(x => x.Value == id);
        numerosities[subsumedId].Value++;
      }

      return base.Apply();
    }
  }
}