#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2013 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.SymbolicExpressionTreeEncoding;
using HeuristicLab.Operators;
using HeuristicLab.Optimization;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;

namespace HeuristicLab.Problems.Robocode {
  [StorableClass]
  [Item("Robocode Evaluator", "Evaluator for the Robocode GP problem.")]
  public class RobocodeEvaluator : SingleSuccessorOperator, ISingleObjectiveEvaluator {
    private const string QualityParameterName = "Quality";
    private const string TankProgramParameterName = "TankProgram";
    private const string RobocodePathParamaterName = "RobocodePath";
    private const string NrOfRoundsParameterName = "NrOfRounds";
    private const string EnemiesParameterName = "Enemies";

    #region Parameters
    public ILookupParameter<DoubleValue> QualityParameter {
      get { return (ILookupParameter<DoubleValue>)Parameters[QualityParameterName]; }
    }
    public ILookupParameter<ISymbolicExpressionTree> TankProgramParameter {
      get { return (ILookupParameter<ISymbolicExpressionTree>)Parameters[TankProgramParameterName]; }
    }
    public ILookupParameter<DirectoryValue> RobocodePathParameter {
      get { return (ILookupParameter<DirectoryValue>)Parameters[RobocodePathParamaterName]; }
    }
    public ILookupParameter<IntValue> NrOfRoundsParameter {
      get { return (ILookupParameter<IntValue>)Parameters[NrOfRoundsParameterName]; }
    }
    public ILookupParameter<EnemyCollection> EnemiesParameter {
      get { return (ILookupParameter<EnemyCollection>)Parameters[EnemiesParameterName]; }
    }
    #endregion

    [StorableConstructor]
    protected RobocodeEvaluator(bool deserializing) : base(deserializing) { }
    protected RobocodeEvaluator(RobocodeEvaluator original, Cloner cloner)
      : base(original, cloner) { }

    public RobocodeEvaluator() {
      Parameters.Add(new LookupParameter<DoubleValue>(QualityParameterName, "The solution quality of the Robocode tank program."));
      Parameters.Add(new LookupParameter<ISymbolicExpressionTree>(TankProgramParameterName, "The Robocode tank program to evaluate represented as a symbolic expression tree."));
      Parameters.Add(new LookupParameter<DirectoryValue>(RobocodePathParamaterName, "Path of the Robocode installation."));
      Parameters.Add(new LookupParameter<IntValue>(NrOfRoundsParameterName, "Nr. of Rounds a Robot has to fight against each opponent."));
      Parameters.Add(new LookupParameter<EnemyCollection>(EnemiesParameterName, "The enemies that should be battled."));
    }

    public override IOperation Apply() {
      ISymbolicExpressionTree tree = TankProgramParameter.ActualValue;
      string path = RobocodePathParameter.ActualValue.Value;
      QualityParameter.ActualValue = new DoubleValue(Interpreter.EvaluateTankProgram(tree, path, EnemiesParameter.ActualValue, null, false, NrOfRoundsParameter.ActualValue.Value));

      return base.Apply();
    }

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