using System;
using System.Threading.Tasks;

namespace AForge.Genetic
{
	public abstract class ChromosomeBase : IChromosome, IComparable
	{
		public Guid ID;
		public double? fitness=null;

		public double Fitness
		{
			get
			{
				//while (fitness == null) ;
				
				if (fitness is double f)
				{
                    if(double.IsNaN(f)) return 999999;
					else return f;

                }
					//while (fitness == null) ;
					//return fitness??0;
					
				else
					return 999999;
			}
			
		}

		public int CalcID;

        public double[] AttemptArray = null;
        public abstract void Generate();

		public abstract IChromosome CreateNew();

		public abstract IChromosome Clone();

		public abstract void Mutate();

		public abstract void Crossover(IChromosome pair);


		public int CompareTo(object o)
		{
			
			
			double num = ((ChromosomeBase)o).Fitness;
			if (fitness != num)
			{
				if (!(fitness < num))
				{
					return -1;
				}
				return 1;
			}
			return 0;
		}

		public virtual bool isValid()
        {
			throw new NotImplementedException();
        	return true;
        }

		public virtual bool _valid { get; set; } = false;

		public virtual void Evaluate(IFitnessFunction function)
        {
            throw new NotImplementedException();

            fitness = function.Evaluate(this);
		}
	}
}