using System;
using System.Linq.Expressions;
using System.Runtime.CompilerServices;
using InABox.Core;

namespace comal.timesheets
{
    public abstract class DetailShell<TParent, TEntity> : Shell<TParent, TEntity>
        where TParent : IDetailModel
        where TEntity : Entity, IRemotable, IPersistent, new()
    {
        
        public TEntity Entity { get; private set; }
        
        protected override void RowChanged()
        {
            base.RowChanged();
            Entity = Row.ToObject<TEntity>();
        }
        
        protected override T Get<T>([CallerMemberName] string property = null)
        {
            if (Entity != null)
            {
                return (T)CoreUtils.GetPropertyValue(
                    Entity,
                    CoreUtils.GetFullPropertyName(Columns[property], ".")
                );
            }
            return base.Get<T>(property);
        }
        
        protected override void Set<T>(T value, bool notify = true, [CallerMemberName] string property = null)
        {
            if (Entity == null)
                Entity = Row.ToObject<TEntity>();
            CoreUtils.SetPropertyValue(
                Entity,
                CoreUtils.GetFullPropertyName(Columns[property], "."),
                value
            );
            base.Set(value,notify,property);
        }

        
    }
}