#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 System;
using System.Collections.Generic;
using HeuristicLab.Encodings.PermutationEncoding;

namespace HeuristicLab.Encodings.ParameterVectorEncoding {
  public class ParameterVectorBuilder {
    private HashSet<string> booleanParameters;
    private Dictionary<string, Tuple<int, int, int?>> integerParameters;
    private Dictionary<string, Tuple<double, double>> realParameters;
    private Tuple<PermutationTypes, int> permutationParameter;

    public ParameterVectorBuilder() {
      booleanParameters = null;
      integerParameters = null;
      realParameters = null;
      permutationParameter = null;
    }

    public ParameterVectorBuilder AddBoolean(string name) {
      if (booleanParameters == null) booleanParameters = new HashSet<string>();
      booleanParameters.Add(name);
      return this;
    }

    public ParameterVectorBuilder AddInteger(string name, int min, int max, int? step = null) {
      if (integerParameters == null) integerParameters = new Dictionary<string, Tuple<int, int, int?>>();
      integerParameters.Add(name, Tuple.Create(min, max, step));
      return this;
    }

    public ParameterVectorBuilder AddReal(string name, double min, double max) {
      if (realParameters == null) realParameters = new Dictionary<string, Tuple<double, double>>();
      realParameters.Add(name, Tuple.Create(min, max));
      return this;
    }

    public ParameterVectorBuilder SetPermutation(PermutationTypes type, int length) {
      permutationParameter = Tuple.Create(type, length);
      return this;
    }

    public ParameterVector Build() {
      var vector = new ParameterVector();
      vector.SetBooleanParameters(booleanParameters);
      vector.SetIntegerParameters(integerParameters);
      vector.SetRealParameters(realParameters);
      vector.SetPermutationParameters(permutationParameter);
      return vector;
    }
  }
}