using System;
using System.Threading.Tasks;
using Comal.Classes;
using InABox.Core;
using InABox.Mobile;

namespace PRS.Mobile
{
    public class ProductEditViewModel : MobileViewModel<Product, ProductShell>
    {
        protected override void DoLoad()
        {
            Task[] tasks = new Task[]
            {
                Task.Run(() => Holdings.Refresh(true)),
                Task.Run(() => Movements.Refresh(true))
            };
            Task.WaitAll(tasks);
        }
        
        public StockHoldingModel Holdings { get; private set; }
        
        public StockMovementModel Movements { get; private set; }
        
        public ProductEditViewModel()
        {
            
            Holdings = new StockHoldingModel(App.Data,
                () => new Filter<StockHolding>(x => x.Product.ID).IsEqualTo(Item?.ID ?? CoreUtils.FullGuid).And(x=>x.Units).IsNotEqualTo(0.0F)
            );    
                            
            Movements = new StockMovementModel(App.Data,
                () => new Filter<StockMovement>(x => x.Product.ID).IsEqualTo(Item?.ID ?? CoreUtils.FullGuid)
            );
            
        }
        
        public override bool IsChanged => Item == null || Item.ID == Guid.Empty || Item.IsChanged();
        
    }
}