using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using HeuristicLab.Common;
using HeuristicLab.Common.Resources;
using HeuristicLab.Core;
using HeuristicLab.Optimization;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;

namespace HeuristicLab.Analysis.FitnessLandscape {

  [Item("Aggregator", "Base class of aggreagtors that aggregate results collected from several trajectories.")]
  [StorableClass]
  public abstract class Aggregator<T> : NamedItem, IAggregator where T : class, IItem {

    public static new Image StaticItemImage { get { return VSImageLibrary.Database;  } }
    public override bool CanChangeName { get { return false; } }

    protected List<T> items = new List<T>();

    [StorableConstructor]
    protected Aggregator(bool deserializing) : base(deserializing) { }
    protected Aggregator(Aggregator<T> original, Cloner cloner)
      : base(original, cloner) {
        items = original.items.Select(i => cloner.Clone<IItem>(i)).Cast<T>().ToList();
    }
    public Aggregator() {
      name = ItemName;
      description = ItemDescription;
    }
    public virtual void MaybeAddResult(IResult result) {
      T t = result.Value as T;
      if (t != null)
        items.Add(t);
    }
    public virtual void Reset() {
      items.Clear();
    }
    public abstract IResult CreateResult();
  }
}