using System;
using System.Collections.ObjectModel;
using Comal.Classes;
using InABox.Core;
using Xamarin.Forms;

namespace comal.timesheets
{
    public class AssignmentShell : Shell<AssignmentModel, Assignment>
    {

        static AssignmentShell()
        {
            Columns.Map(nameof(Id), x => x.ID)
                .Map(nameof(Number), x => x.Number)
                .Map(nameof(Title), x => x.Title)
                .Map(nameof(EmployeeId), x => x.EmployeeLink.ID)
                .Map(nameof(JobID), x => x.JobLink.ID)
                .Map(nameof(JobNumber), x => x.JobLink.JobNumber)
                .Map(nameof(JobName), x => x.JobLink.Name)
                .Map(nameof(TaskID), x => x.Task.ID)
                .Map(nameof(TaskNumber), x => x.Task.Number)
                .Map(nameof(TaskName), x => x.Task.Title)
                .Map(nameof(Notes), x => x.Description)
                .Map(nameof(_date), x => x.Date)
                .Map(nameof(_bookedstart), x => x.Booked.Start)
                .Map(nameof(_bookedfinish), x => x.Booked.Finish)
                .Map(nameof(_actualstart), x => x.Actual.Start)
                .Map(nameof(_actualfinish), x => x.Actual.Finish)
                .Map(nameof(_completed), x => x.Completed)
                .Map(nameof(_color), x => x.ActivityLink.Color)
                .Map(nameof(DeliveryID), x=>x.Delivery.ID);
        }

        public Guid Id => Get<Guid>();
        public int Number => Get<int>();
        public String Title => Get<String>();

        public Guid EmployeeId => Get<Guid>();
        public ObservableCollection<object> ResourceIds => new ObservableCollection<object>() { EmployeeId };

        public Guid JobID => Get<Guid>();
        public string JobNumber => Get<String>();
        public string JobName => Get<String>();
        
        public Guid TaskID => Get<Guid>();
        public int TaskNumber => Get<int>();
        public string TaskName => Get<String>();

        public String Subject => string.Format("{0}{1} {2}",
            Number,
            JobID != Guid.Empty ? $"({JobNumber})" : "",
            Title
        );

        public string Notes => Get<String>();

        private DateTime _date => Get<DateTime>();
        private TimeSpan _bookedstart => Get<TimeSpan>();
        private TimeSpan _bookedfinish => Get<TimeSpan>();
        private TimeSpan _actualstart => Get<TimeSpan>();
        private TimeSpan _actualfinish => Get<TimeSpan>();
        public DateTime StartTime => _date.Add(Assignment.EffectiveTime(_actualstart, _bookedstart).Floor(TimeSpan.FromMinutes(5)));
        public DateTime EndTime => _date.Add(Assignment.EffectiveTime(_actualfinish, _bookedfinish).Ceiling(TimeSpan.FromMinutes(5)));

        private DateTime _completed => Get<DateTime>();
        public bool Completed => !_completed.IsEmpty();

        private String _color => Get<String>();
        public Color Color
        {
            get => !String.IsNullOrWhiteSpace(_color) ? Color.FromHex(_color) : Color.Silver;
            set => Set<String>(value.ToHex());
        }
        public Color TextColor => Color.Black;

        public Guid DeliveryID => Get<Guid>();

        public static Filter<Assignment> MyAssignments =>
            new Filter<Assignment>(x => x.EmployeeLink.ID).IsEqualTo(App.Data.Me.ID);
        
    }
}