using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Media.Imaging;
using Comal.Classes;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.WPF;

namespace PRSDesktop
{
    public class StockTreatmentGrid : DynamicDataGrid<StockHolding>
    {
        private readonly List<Guid> _selected = new();

        private readonly BitmapImage tick = PRSDesktop.Resources.tick.AsBitmapImage();

        public StockTreatmentGrid()
        {
            Options.Clear();
            ActionColumns.Add(new DynamicImageColumn(SelectedImage, SelectedAction) { Position = DynamicActionColumnPosition.End });
        }

        public Guid Location { get; set; }

        public IEnumerable<Guid> Selected => _selected;

        protected override DynamicGridColumns LoadColumns()
        {
            //return base.LoadColumns();
            var result = new DynamicGridColumns();
            result.Add<StockHolding, double>(x => x.Units, 50, "Qty", "F0", Alignment.MiddleCenter);
            result.Add<StockHolding, string>(x => x.Product.Code, 120, "Code", "", Alignment.MiddleLeft);
            result.Add<StockHolding, string>(x => x.Product.Name, 0, "Name", "", Alignment.MiddleLeft);
            result.Add<StockHolding, string>(x => x.Dimensions.UnitSize, 100, "Size", "", Alignment.MiddleCenter);
            result.Add<StockHolding, string>(x => x.Job.JobNumber, 70, "Job #", "", Alignment.MiddleCenter);
            return result;
        }

        private BitmapImage SelectedImage(CoreRow arg)
        {
            return arg == null
                ? tick
                : _selected.Contains(arg.Get<StockHolding, Guid>(x => x.ID))
                    ? tick
                    : null;
        }

        private bool SelectedAction(CoreRow arg)
        {
            if (arg == null)
            {
                if (_selected.Any())
                    _selected.Clear();
                else
                    _selected.AddRange(Data.ExtractValues<StockHolding, Guid>(x => x.ID));
            }
            else
            {
                var id = arg.Get<StockHolding, Guid>(x => x.ID);
                if (_selected.Contains(id))
                    _selected.Remove(id);
                else
                    _selected.Add(id);
            }

            return true;
        }

        protected override void Reload(Filters<StockHolding> criteria, Columns<StockHolding> columns, ref SortOrder<StockHolding> sort,
            Action<CoreTable, Exception> action)
        {
            criteria.Add(new Filter<StockHolding>(x => x.Location.ID).IsEqualTo(Location));
            base.Reload(criteria, columns, ref sort, action);
        }
    }
}