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

namespace PRS.Mobile
{
    public class ConsignmentEditViewModel : MobileViewModel<Consignment,ConsignmentShell>
    {
        
        //public ConsignmentDocumentModel Documents { get; set; }
        
        public PurchaseOrderItemModel Items { get; set; }
        
        //public PurchaseOrderItemFormModel Forms { get; set; }
        
        public ConsignmentEditViewModel()
        {
            //Documents = new ConsignmentDocumentModel(App.Data,
            //    () => new Filter<ConsignmentDocument>(x => x.EntityLink.ID).IsEqualTo(Item?.ID ?? Guid.Empty));
            
            Items = new PurchaseOrderItemModel(App.Data, 
                () => new Filter<PurchaseOrderItem>(x => x.Consignment.ID).IsEqualTo(Item?.ID ?? Guid.Empty));
            
            //Forms = new PurchaseOrderItemFormModel(App.Data, 
            //    () => new Filter<PurchaseOrderItemForm>(x => x.Parent.ID).IsEqualTo(Item?.ID ?? Guid.Empty));
        }

        public void LoadOrder(PurchaseOrderShell order)
        {
            var orderitems = new PurchaseOrderItemModel(App.Data, 
                () => new Filter<PurchaseOrderItem>(x => x.PurchaseOrderLink.ID).IsEqualTo(order.ID));
            orderitems.Refresh(true);
            foreach (var orderitem in orderitems.Items)
            {
                var consitem = Items.CreateItem();
                consitem.Row.LoadValues(orderitem.Row.Values);
                Items.CommitItem(consitem);
            }
        }
        
        protected override void DoLoad()
        {
            var tasks = new Task[]
            {
                Task.Run(() =>
                {
                    if (Item != null && Item.ID != Guid.Empty)
                        Items.Refresh(true);
                }),
                
                //Task.Run(() =>
                //{
                //    if (Item != null && Item.ID != Guid.Empty)
                //        Documents.Refresh(true);
                //}),
                
                //Task.Run(() =>
                //{
                //    if (Item != null && Item.ID != Guid.Empty)
                //        Forms.Refresh(true);
                //})
            };
            Task.WaitAll(tasks);
        }
        
        public override bool IsChanged => Item == null || Item.ID == Guid.Empty || Item.IsChanged();
        
        public bool IsNew => Item == null || Item.ID == Guid.Empty;
    }
}