using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using Comal.Classes;
using InABox.Clients;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.WPF;

namespace PRSDesktop
{
    internal class CostSheetKitGrid : DynamicDataGrid<CostSheetKit>
    {
        public CostSheetKitGrid()
        {
            Options.AddRange(DynamicGridOption.RecordCount, DynamicGridOption.AddRows, DynamicGridOption.DeleteRows, DynamicGridOption.EditRows,
                DynamicGridOption.FilterRows, DynamicGridOption.SelectColumns, DynamicGridOption.MultiSelect, DynamicGridOption.ImportData);
            AddButton("Update Sections", PRSDesktop.Resources.kitgroup.AsBitmapImage(), UpdateSections);
            AddButton("Show Items", PRSDesktop.Resources.product.AsBitmapImage(), ShowItems);
            HiddenColumns.Add(x => x.LastUpdate);
            HiddenColumns.Add(x => x.CostSheet.ID);
            HiddenColumns.Add(x => x.Kit.ID);
            HiddenColumns.Add(x => x.Section.ID);
        }

        public ICostSheet CostSheet { get; set; }

        private bool ShowItems(Button sender, CoreRow[] rows)
        {
            if (rows == null || rows.Length != 1)
            {
                MessageBox.Show("Please select a single row!");
                return false;
            }

            var kitid = rows.First().Get<CostSheetKit, Guid>(x => x.Kit.ID);

            var msd = new MultiSelectDialog<KitProduct>(
                new Filter<KitProduct>(x => x.Kit.ID).IsEqualTo(kitid),
                new Columns<KitProduct>()
            );
            msd.ShowDialog();

            return false;
        }

        private bool UpdateSections(Button arg1, CoreRow[] arg2)
        {
            using (new WaitCursor())
            {
                // Save Existing Section/Kit values
                var values = new Dictionary<Guid, List<Guid>>();

                foreach (var row in Data.Rows)
                {
                    var sectionid = row.Get<CostSheetKit, Guid>(x => x.Section.ID);
                    if (!values.ContainsKey(sectionid))
                        values[sectionid] = new List<Guid>();
                    values[sectionid].Add(row.Get<CostSheetKit, Guid>(x => x.Kit.ID));
                    var kit = new CostSheetKit { ID = row.Get<CostSheetKit, Guid>(x => x.ID) };
                    new Client<CostSheetKit>().Delete(kit, "");
                }

                var sections = new Client<CostSheetSection>().Query(
                    null,
                    null,
                    new SortOrder<CostSheetSection>(x => x.Sequence)
                );

                var updates = new List<CostSheetKit>();
                foreach (var row in sections.Rows)
                {
                    var sectionid = row.Get<CostSheetSection, Guid>(x => x.ID);

                    var iCount = row.Get<CostSheetSection, int>(x => x.Quantity);
                    if (values.ContainsKey(sectionid) && iCount < values[sectionid].Count)
                        iCount = values[sectionid].Count;

                    for (var i = 0; i < iCount; i++)
                    {
                        var kit = new CostSheetKit();
                        kit.CostSheet.ID = CostSheet != null ? CostSheet.ID : Guid.Empty;
                        kit.Section.ID = sectionid;
                        kit.Sequence = row.Get<CostSheetSection, long>(x => x.Sequence);
                        if (values.ContainsKey(sectionid) && i < values[sectionid].Count)
                            kit.Kit.ID = values[sectionid][i];
                        updates.Add(kit);
                    }
                }

                new Client<CostSheetKit>().Save(updates, "");
            }

            return true;
        }

        protected override void Reload(Filters<CostSheetKit> criteria, Columns<CostSheetKit> columns, ref SortOrder<CostSheetKit> sort,
            Action<CoreTable, Exception> action)
        {
            criteria.Add(new Filter<CostSheetKit>(x => x.CostSheet.ID).IsEqualTo(CostSheet != null ? CostSheet.ID : CoreUtils.FullGuid));
            base.Reload(criteria, columns, ref sort, action);
        }

        protected override CostSheetKit CreateItem()
        {
            var result = base.CreateItem();
            result.CostSheet.ID = CostSheet != null ? CostSheet.ID : Guid.Empty;
            return result;
        }

        protected override BaseEditor? GetEditor(object item, DynamicGridColumn column)
        {
            if (column.ColumnName.Equals("CostSheet.ID"))
                return new NullEditor();
            return base.GetEditor(item, column);
        }


        protected override void CustomiseExportColumns(List<string> columnnames)
        {
            base.CustomiseExportColumns(columnnames);
            var costsheet = CoreUtils.GetFullPropertyName<CostSheetKit, string>(x => x.CostSheet.Code, ".");
            if (columnnames.Contains(costsheet))
                columnnames.Remove(costsheet);
        }

        protected override string CustomiseExportFileName(string filename)
        {
            return CostSheet != null ? CostSheet.Code : base.CustomiseExportFileName(filename);
        }

        protected override string CustomiseImportFileName(string filename)
        {
            return CostSheet != null ? CostSheet.Code : base.CustomiseExportFileName(filename);
        }

        protected override bool CustomiseImportItem(CostSheetKit item)
        {
            if (CostSheet == null)
                return false;

            var result = base.CustomiseImportItem(item);

            if (result)
                item.CostSheet.ID = CostSheet.ID;

            return result;
        }
    }
}