#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.Encodings.IntegerVectorEncoding;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;

namespace HeuristicLab.Problems.GeneralizedQuadraticAssignment {
  [Item("N-Move", "An N-Move describes the relocation of n equipments to n different locations.")]
  [StorableClass]
  public class NMove : Item {
    [Storable]
    public Dictionary<int, int> NewAssignments { get; private set; }
    [Storable]
    public IntegerVector OriginalVector { get; private set; }

    public int N { get { return NewAssignments.Count; } }

    [StorableConstructor]
    protected NMove(bool deserializing) : base(deserializing) { }
    protected NMove(NMove original, Cloner cloner)
      : base(original, cloner) {
      NewAssignments = new Dictionary<int, int>(original.NewAssignments);
      if (original.OriginalVector != null)
        OriginalVector = cloner.Clone(original.OriginalVector);
    }
    public NMove() : this(new int[0], new int[0], null) { }
    public NMove(int[] equipments, int[] locations) : this(equipments, locations, null) { }
    public NMove(int[] equipments, int[] locations, IntegerVector originalVector)
      : base() {
      if (equipments == null) throw new ArgumentNullException("equipments", "NMove: Equipments must not be null.");
      if (locations == null) throw new ArgumentNullException("locations", "NMove: Locations must not be null.");
      if (equipments.Length != locations.Length) throw new ArgumentException("NMove: Length of equipments and locations is not identical.");
      NewAssignments = new Dictionary<int, int>();
      for (int i = 0; i < equipments.Length; i++)
        NewAssignments[equipments[i]] = locations[i];
      OriginalVector = originalVector;
    }

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