using System;
using System.Linq;
using System.Windows.Media.Imaging;
using Comal.Classes;
using InABox.Clients;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.WPF;
using PRS.Shared;

namespace PRSDesktop
{
    internal class DynamicScheduleEditorColumn<T> : DynamicImageColumn where T : Entity, IPersistent, IRemotable, ISchedulable, new()
    {
        private readonly BitmapImage bitmap_disabled = Resources.clock.AsGrayScale().AsBitmapImage();
        private readonly BitmapImage bitmap_enabled = Resources.clock.AsBitmapImage();
        private readonly BitmapImage bitmap_header = Resources.clock.AsBitmapImage();

        public DynamicScheduleEditorColumn() : base(r => null)
        {
            Image = ScheduleImage;
            Action = EditSchedule;
            Filters = new[] { "Active Schedules", "No/Inactive Schedules" };
            FilterRecord = ScheduleFilter;
        }

        private bool ScheduleFilter(CoreRow row, string[] filter)
        {
            int schedules = row.Get<T, int>(x => x.ActiveSchedules);
            if (filter.Contains("Active Schedules") && (schedules > 0))
                return true;
            if (filter.Contains("No/Inactive Schedules") && (schedules == 0))
                return true;
            return false;
        }

        private BitmapImage ScheduleImage(CoreRow row)
        {
            if (row == null)
                return bitmap_header;
            var isenabled = row.Get<T, int>(x => x.ActiveSchedules) > 0;
            return isenabled ? bitmap_enabled : bitmap_disabled;
        }

        private bool EditSchedule(CoreRow row)
        {
            var id = row.Get<T, Guid>(x => x.ID);
            var item = new Client<T>().Load(new Filter<T>(x => x.ID).IsEqualTo(id)).FirstOrDefault();
            var form = new ScheduleForm(item);
            form.ShowDialog();
            return true;
        }
    }
}