using System.Reflection;

namespace DnDShared.Models.DTOs
{
    public class DTO<T> where T : DTO<T>, new()
    {
        public static T CreateFrom(object Source)
        {
            MethodInfo FactoryFactory = typeof(DTO<>).GetMethod("CreateFrom");
            T Output = new T();

            foreach(var Property in typeof(T).GetProperties())
            {
                PropertyInfo SourceType = Source.GetType().GetProperty(Property.Name);
                if (SourceType != null)
                {
                    if (Property.PropertyType == SourceType.PropertyType)
                    {
                        Property.SetValue(Output, SourceType.GetValue(Source));
                    }
                    else if(Property.PropertyType.IsSubclassOf(typeof(DTO<>)))
                    {
                        Property.SetValue(Output, FactoryFactory.MakeGenericMethod(new[] { Property.PropertyType }).Invoke(null, new[] { SourceType.GetValue(Source) }));
                    }
                }
            }
            return null;
        }
    }
}