using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;

namespace HeuristicLab.Algorithms.IteratedSymbolicExpressionConstruction {
  // simply returns the concatenated actions (the full path of actions to the current decision represents the state)
  [StorableClass]
  [Item("DefaultStateFunction", "")]
  internal class DefaultStateFunction : Item, IStateFunction {
    public DefaultStateFunction()
      : base() {
    }

    public object CreateState(ISymbolicExpressionTreeNode root, List<int> actions, ISymbolicExpressionTreeNode parentNode, int childIdx) {
      return string.Join(",", actions);
    }

    #region item
    [StorableConstructor]
    protected DefaultStateFunction(bool deserializing) : base(deserializing) { }
    protected DefaultStateFunction(DefaultStateFunction original, Cloner cloner)
      : base(original, cloner) {
    }
    public override IDeepCloneable Clone(Cloner cloner) {
      return new DefaultStateFunction(this, cloner);
    }
    #endregion

  }
}