using System;
using System.Diagnostics;
using Quadarax.Foundation.Core.Data.Interface.Domain;
using Quadarax.Foundation.Core.Object;

namespace Quadarax.Foundation.Core.Data.Domain
{
    public class UnitOfWork<TDomainContext> : DisposableObject,  IUnitOfWork<TDomainContext> where TDomainContext : IDomain
    {

        public TDomainContext Context { get; protected set; }
        public Guid Stamp { get; protected set; }
        public int CtxHash => Context.GetHashCode();

        public UnitOfWork(IDomainContextResolver context,Guid? customStamp = null)
        {
            Context = context.GetCurrent<TDomainContext>();
            if (customStamp == null) 
                customStamp = Guid.NewGuid();
            Stamp = customStamp.GetValueOrDefault();
            Debug.WriteLine($"UOW>>> {Stamp:D} [CTX:{CtxHash}] created");
            
        }

        public UnitOfWork(TDomainContext context, Guid? customStamp = null)
        {
            Context = context;
            if (customStamp == null) 
                customStamp = Guid.NewGuid();
            Stamp = customStamp.GetValueOrDefault();
            Debug.WriteLine($"UOW>>> {Stamp:D} [CTX:{CtxHash}] created");
        }

        public void Commit()
        {
            Context.Commit();
            Debug.WriteLine($"UOW>>> {Stamp:D} [CTX:{CtxHash}] commited");
        }

        public IUnitOfWork<TCustomDomainContext> As<TCustomDomainContext>() where TCustomDomainContext : IDomain
        {
            return new UnitOfWork<TCustomDomainContext>((TCustomDomainContext)(IDomain)Context, Stamp);
        }

        protected override void OnDisposing()
        {
            Debug.WriteLine($"UOW>>> {Stamp:D} [CTX:{CtxHash}] disposed");
            Context?.Rollback();
            Context = default;
        }

    }
}