using System;
using System.Collections.ObjectModel;
using System.Windows.Media;
using Comal.Classes;
using InABox.Core;
using InABox.WPF;

namespace PRSDesktop
{
    public class AssignmentModel : Model<AssignmentModel,Assignment>
    {
        
        public Guid EmployeeID { get; }

        public int Number { get; set; }
        public String? Subject { get; set; }
        public String? Notes { get; set; }
        public DateTime Completed { get; set; }

        public DateTime Date { get; }
        public TimeSpan BookedStart { get; set; }
        public TimeSpan BookedFinish { get; set; }
        public TimeSpan BookedDuration { get; }

        public TimeSpan ActualStart { get; set; }
        public TimeSpan ActualDuration { get; set; }
        public TimeSpan ActualFinish { get; set; }
        
        public static TimeSpan EffectiveTime(TimeSpan actual, TimeSpan booked) => actual.Ticks != 0L ? actual : booked; 

        public TimeSpan EffectiveStart()
        {
            return EffectiveTime(ActualStart, BookedStart);
        }

        public TimeSpan EffectiveFinish()
        {
            // If we have an actual finish, always use that
            // otherwise use EffectiveStart() + booked.duration
            return EffectiveTime(
                ActualFinish, 
                EffectiveTime(ActualStart, BookedStart)
                    .Add(BookedDuration)
            );

        }
        
        public Guid JobID { get; }
        public string? JobNumber { get; }
        public string? JobName { get; }
        
        public Guid ActivityID { get; set; }
        public string? ActivityCode { get; }
        public string? ActivityDescription { get; }
        public string? Color { get; }
        
        public Guid ItpID { get; set; }
        public string? ItpCode { get; set; }
        public string? ItpDescription { get; set; }

        public Guid DeliveryID { get; set; }
        public string? DeliveryNotes { get; set; }

        public Guid TaskID { get; set; }
        public int TaskNumber { get; set; }

        public Guid MeetingID { get; set; }
        public int MeetingNumber { get; set; }

        public AssignmentModel(CoreRow row) : base(row)
        {
            EmployeeID = Get(x=>x.EmployeeLink.ID);

            Number = Get(x => x.Number);
            Subject = Get(x => x.Title);
            Notes = Get(x => x.Description);
            Completed = Get(x => x.Completed);

            Date = Get(x=>x.Date);
            BookedDuration = Get(x => x.Booked.Duration);
            BookedStart = Get(x => x.Booked.Start);
            BookedFinish = Get(x => x.Booked.Finish);
            ActualStart = Get(x => x.Actual.Start);
            ActualDuration = Get(x => x.Actual.Duration);
            ActualFinish = Get(x => x.Actual.Finish);
           
            JobID = Get(x => x.JobLink.ID);
            JobNumber = Get(x => x.JobLink.JobNumber);
            JobName = Get(x => x.JobLink.Name);
           
            ActivityID = Get(x => x.ActivityLink.ID);
            ActivityCode = Get(x => x.ActivityLink.Code);
            ActivityDescription = Get(x => x.ActivityLink.Description);
            Color = Get(x => x.ActivityLink.Color);
           
            ItpID = Get(x => x.ITP.ID);
            ItpCode = Get(x => x.ITP.Code);
            ItpDescription = Get(x => x.ITP.Description);

            DeliveryID = Get(x => x.Delivery.ID);
            DeliveryNotes = Get(x => x.Delivery.Notes);
           
            TaskID = Get(x => x.Task.ID);
            TaskNumber = Get(x => x.Task.Number);

            MeetingID = Get(x => x.Meeting.Link.ID);
            MeetingNumber = Get(x => x.Meeting.Link.Number);
        }
        
        public override Columns<Assignment> GetColumns()
        {
            return new Columns<Assignment>(x => x.ID)

                .Add(x => x.EmployeeLink.ID)

                .Add(x => x.Number)
                .Add(x => x.Title)
                .Add(x => x.Description)
                .Add(x => x.Completed)

                .Add(x => x.Date)
                .Add(x => x.Booked.Start)
                .Add(x => x.Booked.Duration)
                .Add(x => x.Booked.Finish)
                .Add(x => x.Actual.Start)
                .Add(x => x.Actual.Duration)
                .Add(x => x.Actual.Finish)

                .Add(x => x.JobLink.ID)
                .Add(x => x.JobLink.JobNumber)
                .Add(x => x.JobLink.Name)

                .Add(x => x.ActivityLink.ID)
                .Add(x => x.ActivityLink.Code)
                .Add(x => x.ActivityLink.Description)
                .Add(x => x.ActivityLink.Color)

                .Add(x => x.ITP.ID)
                .Add(x => x.ITP.Code)
                .Add(x => x.ITP.Description)

                .Add(x => x.Delivery.ID)
                .Add(x => x.Delivery.Notes)

                .Add(x => x.Task.ID)
                .Add(x => x.Task.Number)

                .Add(x => x.Meeting.Link.ID)
                .Add(x => x.Meeting.Link.Number);

        }
    }
}