using System.Collections.Generic;
using System.Linq;
using HEAL.Attic;
using HeuristicLab.Common;
using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;

namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
  [StorableType("05130B5F-0125-4367-A4E9-C42D1085024E")]
  public sealed class SubFunctionTreeNode : SymbolicExpressionTreeNode {

    #region Properties
    public new SubFunctionSymbol Symbol => (SubFunctionSymbol)base.Symbol;

    [Storable]
    public IEnumerable<string> Arguments { get; set; } = Enumerable.Empty<string>();
    
    [Storable]
    public string Name { get; set; }
    #endregion

    #region Constructors
    public SubFunctionTreeNode(SubFunctionSymbol symbol) : base(symbol) { }

    [StorableConstructor]
    private SubFunctionTreeNode(StorableConstructorFlag _) : base(_) { }

    private SubFunctionTreeNode(SubFunctionTreeNode original, Cloner cloner) : base(original, cloner) {
      Arguments = original.Arguments;
      Name = (string)original.Name.Clone();
    }
    #endregion

    #region Cloning
    public override IDeepCloneable Clone(Cloner cloner) => new SubFunctionTreeNode(this, cloner);
    #endregion

    public override string ToString() {
      if (string.IsNullOrEmpty(Name))
        return base.ToString();
      return $"{Name}({string.Join(",", Arguments)})";
    }
  }
}