using Autofac;
using System;

namespace PatternDemoCore
{

    public class Service
    {
        public string DoSomething(int value)
        {
            return $"I have {value}";
        }
    }

    public class DomainObject
    {
        private readonly Service service;
        private readonly int value;

        public delegate DomainObject Factory(int value);

        public DomainObject(Service service, int value)
        {
            this.service = service;
            this.value = value;
        }

        public override string ToString()
        {
            return service.DoSomething(value);
        }
    }

    public class Demo
    {
        static void Main(string[] args)
        {
            var cb = new ContainerBuilder();
            cb.RegisterType<Service>();
            cb.RegisterType<DomainObject>();

            var container = cb.Build();
            var dobj = container.Resolve<DomainObject>(
                new PositionalParameter(1, 42));
            Console.WriteLine(dobj);

            // Better way

            var factory = container.Resolve<DomainObject.Factory>();
            var dobj2 = factory(42);
            Console.WriteLine(dobj2);


        }
    }
}