prs/prs.mobile/comal.timesheets/Data Models/Lists/TimeSheet/TimeSheetShell.cs

using System;
using Comal.Classes;
using InABox.Core;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;

namespace comal.timesheets
{

    public class TimeSheetShell : Shell<TimeSheetModel,TimeSheet>
    {

        public static Filter<TimeSheet> UnprocessedTimeSheets => new Filter<TimeSheet>(x => x.EmployeeLink.ID)
            .IsEqualTo(App.Data.Me.ID)
            .And(x => x.Processed).IsEqualTo(DateTime.MinValue);
        
        static TimeSheetShell()
        {
            Columns
                .Map(nameof(Date), x => x.Date)
                .Map(nameof(_actualstart), x => x.Start)
                .Map(nameof(_actualfinish), x => x.Finish)
                .Map(nameof(_approvedstart), x => x.ApprovedStart)
                .Map(nameof(_approvedfinish), x => x.ApprovedFinish)
                .Map(nameof(_approved), x => x.Approved);
        }

        public DateTime Date => Get<DateTime>();
        
        private TimeSpan _actualstart => Get<TimeSpan>();
        private TimeSpan _actualfinish => Get<TimeSpan>();
        private TimeSpan _approvedstart => Get<TimeSpan>();
        private TimeSpan _approvedfinish => Get<TimeSpan>();
        private DateTime _approved => Get<DateTime>();

        public TimeSpan Start => _approved.IsEmpty()
            ? _actualstart
            : _approvedstart;
        
        public TimeSpan Finish => _approved.IsEmpty()
            ? _actualfinish
            : _approvedfinish;
        
        public ImageSource Approved => _approved.IsEmpty()
            ? null
            : ImageSource.FromFile("tick");

    }
}