using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using InABox.Core;
using InABox.Wpf;

namespace InABox.DynamicGrid
{
    public partial class PopupList : ThemableWindow
    {
        private readonly Dictionary<string, string> _filters;

        private IDynamicGrid _grid;
        private readonly string[] _othercolumns = Array.Empty<string>();

        private readonly Type _type;

        public PopupList(Type type, Guid id, string[] OtherColumns, Dictionary<string, string> Filters = null)
        {
            InitializeComponent();

            OtherValues = new Dictionary<string, object>();

            _filters = Filters;
            _othercolumns = OtherColumns;
            _type = type;

            ID = id;

            SourceInitialized += PopupList_SourceInitialized;
        }

        public Guid ID { get; set; }

        public Dictionary<string, object> OtherValues { get; }

        public string AsLookup()
        {
            var result = new List<object>();
            foreach (var key in OtherValues.Keys.ToArray())
            {
                var comps = key.Split(new[] { "->" }, StringSplitOptions.None);
                result.Add(_grid.SelectedRows.First().Get<object>(comps.First()));
            }

            return string.Join(" / ", result.Where(x => x != null && !string.IsNullOrWhiteSpace(x.ToString())));
        }

        public event OnDefineFilter? OnDefineFilter;

        private void PopupList_SourceInitialized(object? sender, EventArgs e)
        {
            //_grid = DynamicGridUtils.CreateDynamicGrid(typeof(DynamicDataGrid<>), _type);
            _grid = (Activator.CreateInstance(typeof(DynamicDataGrid<>).MakeGenericType(_type)) as IDynamicGrid)!;
            _grid.Margin = new Thickness(5, 5, 5, 0);
            ((DependencyObject)_grid).SetValue(Grid.ColumnProperty, 0);
            ((DependencyObject)_grid).SetValue(Grid.ColumnSpanProperty, 3);
            ((DependencyObject)_grid).SetValue(Grid.RowProperty, 0);

            //_grid.AddHiddenColumn("AsLookup");
            foreach (var column in _othercolumns)
            {
                var comps = column.Split(new[] { "->" }, StringSplitOptions.None);
                _grid.AddHiddenColumn(comps.First());
                OtherValues[column] = null;
            }

            layoutGrid.Children.Add((UIElement)_grid);

            _grid.Options.BeginUpdate().Clear().AddRange(
                DynamicGridOption.SelectColumns,
                DynamicGridOption.FilterRows
            ).EndUpdate();

            CoreUtils.SetPropertyValue(_grid, "ColumnsTag", "Popup");

            _grid.OnDefineFilter += (control, type) => { return OnDefineFilter?.Invoke(control, type); };

            _grid.Refresh(true, false);

            if (_filters != null)
                foreach (var key in _filters.Keys)
                {
                    // TODO: Get this working again
                    //_grid.AddVisualFilter(key, _filters[key]);
                }
            _grid.Refresh(false, true);

            var screen = WpfScreen.GetScreenFrom(this);
            var maxwidth = (int)screen.WorkingArea.Width - 200;

            var DesiredWidth = _grid.DesiredWidth();
            if (DesiredWidth > maxwidth)
                DesiredWidth = maxwidth;
            if (DesiredWidth > Width)
                Width = DesiredWidth;

            var maxheight = (int)screen.WorkingArea.Height - 200;
            var DesiredHeight = (int)(Width * 0.6);
            if (DesiredHeight > maxheight)
                DesiredHeight = maxheight;
            if (DesiredHeight > Height)
                Height = DesiredHeight;

            _grid.SelectedRows = _grid.Data.Rows.Where(r => r.Get<Guid>("ID").Equals(ID)).ToArray();

            //Left = screen.DeviceBounds.Left + ((screen.DeviceBounds.Width - Width) / 2.0F);
            //Top = screen.DeviceBounds.Top + ((screen.DeviceBounds.Height - Height) / 2.0F);
            //WpfScreen.CenterWindowOnScreen(this);
        }


        private void OKButton_Click(object sender, RoutedEventArgs e)
        {
            if (_grid.SelectedRows.Any())
            {
                ID = _grid.SelectedRows.First().Get<Guid>("ID");

                //AsLookup = _grid.SelectedRows.First().Get<String>("AsLookup");

                foreach (var key in OtherValues.Keys.ToArray())
                {
                    var comps = key.Split(new[] { "->" }, StringSplitOptions.None);
                    OtherValues[key] = _grid.SelectedRows.First().Get<object>(comps.First());
                }

                DialogResult = true;
                Close();
            }
            else
            {
                MessageBox.Show("Please select an Item first");
            }
        }

        private void CancelButton_Click(object sender, RoutedEventArgs e)
        {
            DialogResult = false;
            Close();
        }
    }
}