using System;
using System.Collections.Generic;
using System.Reflection.Emit;
using System.Text;

namespace Sunweaver.DataPrototypes
{
    public class DNA
    {
        public List<Chromosome> Chromosomes;
        public Dictionary<string, int> PersonalConstants;

        private delegate void ExecuteDelegate(Memory baseMemory);
        private ExecuteDelegate Run;

        public DNA()
        {
            Chromosomes = new List<Chromosome>();
            PersonalConstants = new Dictionary<string, int>();

            Chromosomes.Add(new Chromosome(this));
            Run = Interpret;
        }

        public void Execute(Memory baseMemory)
        {
            Run(baseMemory);
        }

        public void Interpret(Memory baseMemory)
        {
            foreach (Chromosome c in Chromosomes)
            {
                c.Excecute(baseMemory);
            }
        }

        public void Compile()
        {
            var method = new DynamicMethod(string.Empty, typeof(void),
                new Type[] { typeof(DNA), typeof(Memory) },
                typeof(DNA).Module);

            ILGenerator il = method.GetILGenerator();
            Locals locals = new Locals(il);
            foreach (Chromosome c in Chromosomes)
            {
                c.Compile(il, locals);
            }
            il.Emit(OpCodes.Ret);
            Run = (ExecuteDelegate) method.CreateDelegate(typeof(ExecuteDelegate), this); 
        }
    }
}