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

namespace PRSDesktop
{
    public class ManufacturingItemGrid : DynamicGrid<ManufacturingItem>
    {
        private List<ManufacturingItem> _items;
        private readonly BitmapImage barcode = PRSDesktop.Resources.barcode.AsBitmapImage();

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

        private readonly FactorySetup settings = new GlobalConfiguration<FactorySetup>().Load();

        public ManufacturingItemGrid()
        {
            Options.AddRange(DynamicGridOption.RecordCount, DynamicGridOption.AddRows, DynamicGridOption.DeleteRows);

            //ActionColumns.Add(new DynamicActionColumn() { Action = BarcodeTypeClick, Image = BarcodeTypeImage });
            //HiddenColumns.Add(x => x.GroupedBarcode);
            SplitButton = AddButton("Split", PRSDesktop.Resources.split.AsBitmapImage(), SplitItems);
        }

        public Button SplitButton { get; }

        public List<ManufacturingItem> Items
        {
            get => _items;
            set
            {
                _items = value;
                Refresh(true, true);
            }
        }

        private bool SplitItems(Button sender, CoreRow[] rows)
        {
            if (rows.Length != 1)
            {
                MessageBox.Show("Please select an item to split!");
                return false;
            }

            var row = rows.First();

            var item = Items[row.Index];
            if (item.Quantity <= 1)
            {
                MessageBox.Show("Quantity must be >1 before splitting!");
                return false;
            }

            var Quantity = 1;
            if (NumberEdit.Execute("Quantity to Separate", 1, item.Quantity - 1, ref Quantity))
            {
                var newitem = new ManufacturingItem();
                CoreUtils.Clone(item, newitem);
                newitem.Quantity = newitem.Quantity - Quantity;
                item.Description = item.Description + " - copy";
                item.Quantity = Quantity;
                item.ID = Guid.NewGuid();
                Items.Insert(row.Index, newitem);
                return true;
            }

            return false;
        }

        protected override void SelectItems(CoreRow[] rows)
        {
            base.SelectItems(rows);
            var bQty = true;
            if (rows != null)
                foreach (var row in rows)
                    if (row.Get<ManufacturingItem, int>(x => x.Quantity) <= 1)
                        bQty = false;
            if (!bQty)
                SplitButton.IsEnabled = false;
        }

        //private bool ImportItems(Button arg1, CoreRow arg2)
        //{
        //    Microsoft.Win32.OpenFileDialog ofd = new Microsoft.Win32.OpenFileDialog();
        //    ofd.Filter = "Excel Files (*.xls,*.xlsx)|*.xlsx";
        //    if (ofd.ShowDialog() == true)
        //    {
        //        try
        //        {
        //            using (FileStream file = new FileStream(ofd.FileName, FileMode.Open, FileAccess.Read))
        //            {
        //                IWorkbook xls = WorkbookFactory.Create(file);
        //                ISheet sheet = xls.GetSheet("MASTERLIST");
        //                IEnumerator rows = sheet.GetRowEnumerator();
        //                //            rows.MoveNext();
        //                //            rows.MoveNext(); 
        //                while (rows.MoveNext())


        //                //            IRow headerrow = (IRow)rows.Current;
        //                //            int LocationColumn = GetColumn(headerrow, "LOCATION");
        //                //            int WindowColumn = GetColumn(headerrow, "WINDOW MARK");
        //                //            int SetoutColumn = GetColumn(headerrow, "FRAME - SETOUT");
        //                //            int IDColumn = GetColumn(headerrow, "MARK");
        //                //            int QtyColumn = GetColumn(headerrow, "QTY");

        //                //            int SpecificationColumn = GetColumn(headerrow, "GLASS SPECIFICATIONS");
        //                //            int HeightColumn = GetColumn(headerrow, "HEIGHT");
        //                //            int WidthColumn = GetColumn(headerrow, "WIDTH");
        //                //            int EdgeColumn = GetColumn(headerrow, "EDGEWORK");
        //                //            int SupplierColumn = GetColumn(headerrow, "SUPPLIER");


        //                //            while (rows.MoveNext())
        //                //            {
        //                //                IRow row = (IRow)rows.Current;

        //                //                String SetoutNumber = row.GetCell(SetoutColumn, MissingCellPolicy.CREATE_NULL_AS_BLANK).StringCellValue;

        //                //                if (!String.IsNullOrEmpty(SetoutNumber))
        //                //                {

        //                //                    String ID = row.GetCell(IDColumn, MissingCellPolicy.CREATE_NULL_AS_BLANK).StringCellValue;
        //                //                    if (String.IsNullOrWhiteSpace(ID))
        //                //                        throw new Exception(String.Format("Row [{0}]: MARK Column is blank!", row.RowNum + 1));

        //                //                    String Supplier = row.GetCell(SupplierColumn, MissingCellPolicy.CREATE_NULL_AS_BLANK).StringCellValue;
        //                //                    if (String.IsNullOrWhiteSpace(Supplier))
        //                //                        throw new Exception(String.Format("Row [{0}]: SUPPLIER Column is blank!", row.RowNum + 1));

        //                //                    Progress.SetMessage(String.Format("Row [{0}]: Updating {1} ({2})", row.RowNum + 1, SetoutNumber, ID));

        //                //                    Setout setout = new Client<Setout>().Load(new Filter<Setout>(x => x.Number).IsEqualTo(SetoutNumber)).FirstOrDefault();
        //                //                    if (setout == null)
        //                //                    {
        //                //                        int JobNumber = int.Parse(SetoutNumber.Split('-')[0].Trim());
        //                //                        Job job = new Client<Job>().Load(new Filter<Job>(x => x.Number).IsEqualTo(JobNumber)).FirstOrDefault();
        //                //                        setout = new Setout();
        //                //                        setout.Job = job ?? throw new Exception(String.Format("Row [{0}]: Job does not exist for setout [{1}]!", row.RowNum + 1, SetoutNumber));
        //                //                        setout.Number = SetoutNumber;
        //                //                        setout.Title = row.GetCell(WindowColumn, MissingCellPolicy.CREATE_NULL_AS_BLANK).StringCellValue;
        //                //                        setout.WindowNumber = row.GetCell(LocationColumn, MissingCellPolicy.CREATE_NULL_AS_BLANK).StringCellValue;
        //                //                        setout.Description = String.Format("Glasswork for {0}", SetoutNumber);
        //                //                    }

        //                //                    DataTable packets = new Client<ManufacturingPacket>().Query(
        //                //                        new Filter<ManufacturingPacket>(x => x.SetoutID).IsEqualTo(setout.ID),
        //                //                        new Columns<ManufacturingPacket>(x => x.ManufacturingItemID, x => x.Issued),
        //                //                         null
        //                //                    );

        //                //                    String Template = (Supplier.Equals("INHOUSE") || Supplier.Equals("IN HOUSE")) ? "GMO" : "GPO";
        //                //                    String ItemID = String.Format("{0}/{1}", Template, ID);

        //                //                    ManufacturingItem item = setout.Manufacturing.FirstOrDefault(x => x.Code.Equals(ItemID));
        //                //                    if (item == null)
        //                //                    {
        //                //                        item = new ManufacturingItem();
        //                //                        setout.Manufacturing.Add(item);
        //                //                    }

        //                //                    DataRow pktrow = packets.Rows.FirstOrDefault(x => x.Get<ManufacturingPacket, Guid>(r => r.ManufacturingItemID).Equals(item.ID));
        //                //                    bool bIssued = ((pktrow != null) && (!pktrow.Get<ManufacturingPacket, DateTime>(x => x.Issued).IsEmpty()));

        //                //                    if (!item.Code.StartsWith(Template))
        //                //                    {
        //                //                        if (bIssued)
        //                //                            throw new Exception(String.Format("Row [{0}]: Cannot Change Supplier / In House after packet has been issued!", row.RowNum + 1));

        //                //                        FactoryTemplate template = settings.Templates.Where(x => x.Code.Equals(Template)).FirstOrDefault();
        //                //                        if (template == null)
        //                //                            throw new Exception(String.Format("Row [{0}]: {1} Manufacturing Template does not exist!", row.RowNum + 1, Template));

        //                //                        item.TemplateID = template.ID;
        //                //                        item.Stages.Clear();
        //                //                        foreach (StageTemplate stage in template.Stages)
        //                //                        {
        //                //                            FactorySection section = settings.Sections.Where(x => x.ID.Equals(stage.SectionID)).FirstOrDefault();
        //                //                            item.Stages.Add(new SetoutStage() { SectionID = stage.SectionID, Name = section != null ? section.Name : "", Minutes = stage.Minutes, Sequence = stage.Sequence });
        //                //                        }

        //                //                        foreach (var attr in template.Attributes)
        //                //                            item.Attributes[attr.Name] = "";

        //                //                        item.Group = template.Group;
        //                //                    }

        //                //                    item.Code = ItemID;
        //                //                    item.Purchased = Template == "GPO";
        //                //                    item.Description = String.Format("{0} ({1} x {2})",
        //                //                        row.GetCell(SpecificationColumn, MissingCellPolicy.CREATE_NULL_AS_BLANK).StringCellValue,
        //                //                        row.GetCell(WidthColumn, MissingCellPolicy.CREATE_NULL_AS_BLANK).ToString(),
        //                //                        row.GetCell(HeightColumn, MissingCellPolicy.CREATE_NULL_AS_BLANK).ToString()
        //                //                    );
        //                //                    int Qty = (int)row.GetCell(QtyColumn, MissingCellPolicy.CREATE_NULL_AS_BLANK).NumericCellValue;
        //                //                    item.Quantity = Qty;
        //                //                    String[] keys = item.Attributes.Keys.ToArray();
        //                //                    foreach (String key in keys)
        //                //                    {
        //                //                        try
        //                //                        {
        //                //                            int col = GetColumn(headerrow, key);
        //                //                            item.Attributes[key] = row.GetCell(col, MissingCellPolicy.CREATE_NULL_AS_BLANK).ToString();
        //                //                        }
        //                //                        catch
        //                //                        {
        //                //                        }
        //                //                    }
        //                //                    new Client<Setout>().Save(setout, "Imported from Master Glass Schedule");

        //                //                }

        //                //            }
        //                //        }
        //                Progress.Close();
        //        MessageBox.Show("Import Completed!");
        //        Refresh();
        //    }
        //            catch (Exception e)
        //    {
        //        Progress.Close();
        //        MessageBox.Show("Error while Importing File!\n\n" + e.Message);
        //    }

        //}
        //}

        private BitmapImage BarcodeTypeImage(CoreRow row)
        {
            if (row == null)
                return barcode;
            return row.Get<ManufacturingItem, bool>(x => x.GroupedBarcode) ? grouped : null;
        }

        private bool BarcodeTypeClick(CoreRow row)
        {
            var item = _items[row.Index];
            item.GroupedBarcode = !item.GroupedBarcode;
            return true;
        }

        public override void ConfigureColumns(DynamicGridColumns columns /*, bool dolookups = true */)
        {
            var templates = new Dictionary<object, object>();
            foreach (var template in settings.Templates)
                templates[template.ID] = template.Name;

            columns.Clear();
            columns.AddRange(
                new[]
                {
                    new() { ColumnName = "TemplateID", Caption = "Template", Lookups = templates, Width = 1, Alignment = Alignment.MiddleLeft },
                    //new DynamicGridColumn(){ ColumnName = "Code", Caption="#", Width = 30, Alignment = DynamicGridColumnAlignment.MiddleCenter },
                    new DynamicGridColumn { ColumnName = "Serial", Caption = "Serial", Width = 100, Alignment = Alignment.MiddleLeft },
                    new DynamicGridColumn { ColumnName = "Description", Caption = "Description", Alignment = Alignment.MiddleLeft },
                    new DynamicGridColumn { ColumnName = "Quantity", Width = 30, Caption = "Qty", Alignment = Alignment.MiddleCenter }
                }
            );
        }

        protected override void Reload(Filters<ManufacturingItem> criteria, Columns<ManufacturingItem> columns, ref SortOrder<ManufacturingItem> sort,
            Action<CoreTable, Exception> action)
        {
            var result = new CoreTable();

            result.Columns.Add(new CoreColumn { ColumnName = "TemplateID", DataType = typeof(Guid) });
            result.Columns.Add(new CoreColumn { ColumnName = "Serial", DataType = typeof(string) });
            result.Columns.Add(new CoreColumn { ColumnName = "Description", DataType = typeof(string) });
            result.Columns.Add(new CoreColumn { ColumnName = "Quantity", DataType = typeof(int) });

            result.LoadColumns(typeof(ManufacturingItem));
            result.LoadRows(Items);
            action.Invoke(result, null);
        }

        protected override ManufacturingItem LoadItem(CoreRow row)
        {
            return Items[row.Index];
        }

        protected override void SaveItem(ManufacturingItem item)
        {
            if (!Items.Contains(item))
                Items.Add(item);
        }

        protected override void DeleteItems(params CoreRow[] rows)
        {
            foreach (var index in rows.Select(x => x.Index).OrderByDescending(i => i))
                Items.RemoveAt(index);
        }

        public override bool EditItems(ManufacturingItem[] items, Func<Type, CoreTable> PageDataHandler, bool PreloadPages = false)
        {
            var templates = new Dictionary<Guid, Guid>();
            foreach (var item in items)
                templates[item.ID] = item.TemplateID;

            if (base.EditItems(items, PageDataHandler, PreloadPages))
            {
                foreach (var item in items)
                    if (item.TemplateID != templates[item.ID])
                    {
                        item.Stages.Clear();

                        var template = settings.Templates.Where(x => x.ID.Equals(item.TemplateID)).FirstOrDefault();
                        if (template != null)
                        {
                            item.Group = template.Group;
                            item.Code = template.Code;
                            item.Stages.Clear();
                            foreach (var stage in template.Stages)
                            {
                                var section = settings.Sections.Where(x => x.ID.Equals(stage.SectionID)).FirstOrDefault();
                                item.Stages.Add(
                                    new SetoutStage
                                    {
                                        SectionID = stage.SectionID,
                                        Name = section != null ? section.Name : "",
                                        Minutes = stage.Minutes,
                                        Sequence = stage.Sequence,
                                        QualityChecks = stage.QualityChecks
                                    }
                                );
                            }
                        }
                    }

                return true;
            }

            return false;
        }
    }
}