prs/prs.mobile.new/PRS.Mobile/Modules/Deliveries/FrameScanner/FrameScannerViewModel.cs

using System;
using System.Linq;
using System.Threading.Tasks;
using Comal.Classes;
using InABox.Core;
using InABox.Mobile;
using Syncfusion.SfRangeSlider.XForms;

namespace PRS.Mobile
{
    public class FrameScannerViewModel : MobileViewModel<DeliveryItem, DeliveryItemShell>
    {
        public DeliveryDocumentModel DeliveryDocuments { get; private set; }
        
        public SetoutDocumentModel SetoutDocuments { get; private set; }

        private DeliveryItemModel _deliveryitems;

        private Task _deliveryItemTask;
        
        public FrameScannerViewModel()
        {
            DeliveryDocuments = new DeliveryDocumentModel(App.Data,
                () => new Filter<DeliveryDocument>(x => x.EntityLink.ID).IsEqualTo(Item?.DeliveryID ?? CoreUtils.FullGuid));
            SetoutDocuments = new SetoutDocumentModel(App.Data,
                () => new Filter<SetoutDocument>(x => x.EntityLink.ID).IsEqualTo(Item?.SetoutID ?? CoreUtils.FullGuid));
            
            _deliveryitems = new DeliveryItemModel(App.Data,
                () => new Filter<DeliveryItem>(x=>x.Barcode).IsNotEqualTo("")
            );
            _deliveryItemTask = Task.Run(() => _deliveryitems.Refresh(true));
        }

        public void Search(string barcode)
        {
            _deliveryItemTask.Wait();
            Item = _deliveryitems.FirstOrDefault(x => String.Equals(x.Barcode, barcode));
        }

        protected override void DoLoad()
        {
            var tasks = new Task[]
            {
                Task.Run(() =>DeliveryDocuments.Refresh(true)),
                Task.Run(() =>SetoutDocuments.Refresh(true))
            };
            Task.WaitAll(tasks);
            
        }
        
        public override bool IsChanged => Item == null || Item.ID == Guid.Empty || Item.IsChanged();
    }
}