using DocumentFormat.OpenXml.Office2010.Excel;
using DocumentFormat.OpenXml.Office2013.Excel;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Spreadsheet;
using DocumentFormat.OpenXml;
using PrecastConcretePlantBusinessLogic.OfficePackage.HelperEnums;
using PrecastConcretePlantBusinessLogic.OfficePackage.HelperModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace PrecastConcretePlantBusinessLogic.OfficePackage.Implements
{
	public class SaveToExcel : AbstractSaveToExcel
	{
		private SpreadsheetDocument? _spreadsheetDocument;
		private SharedStringTablePart? _shareStringPart;
		private Worksheet? _worksheet;
		private static void CreateStyles(WorkbookPart workbookpart)
		{
			var sp = workbookpart.AddNewPart<WorkbookStylesPart>();
			sp.Stylesheet = new Stylesheet();
			var fonts = new Fonts() { Count = 2U, KnownFonts = true };
			var fontUsual = new Font();
			fontUsual.Append(new FontSize() { Val = 12D });
			fontUsual.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color() { Theme = 1U });
			fontUsual.Append(new FontName() { Val = "Times New Roman" });
			fontUsual.Append(new FontFamilyNumbering() { Val = 2 });
			fontUsual.Append(new FontScheme() { Val = FontSchemeValues.Minor });
			var fontTitle = new Font();
			fontTitle.Append(new Bold());
			fontTitle.Append(new FontSize() { Val = 14D });
			fontTitle.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color() { Theme = 1U });
			fontTitle.Append(new FontName() { Val = "Times New Roman" });
			fontTitle.Append(new FontFamilyNumbering() { Val = 2 });
			fontTitle.Append(new FontScheme() { Val = FontSchemeValues.Minor });
			fonts.Append(fontUsual);
			fonts.Append(fontTitle);
			var fills = new Fills() { Count = 2U };
			var fill1 = new Fill();
			fill1.Append(new PatternFill() { PatternType = PatternValues.None }); var fill2 = new Fill();
			fill2.Append(new PatternFill()
			{
				PatternType = PatternValues.Gray125
			});
			fills.Append(fill1);
			fills.Append(fill2);
			var borders = new Borders() { Count = 2U };
			var borderNoBorder = new Border();
			borderNoBorder.Append(new LeftBorder());
			borderNoBorder.Append(new RightBorder());
			borderNoBorder.Append(new TopBorder());
			borderNoBorder.Append(new BottomBorder());
			borderNoBorder.Append(new DiagonalBorder());
			var borderThin = new Border();
			var leftBorder = new LeftBorder() { Style = BorderStyleValues.Thin };
			leftBorder.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color()
			{ Indexed = 64U });
			var rightBorder = new RightBorder()
			{
				Style = BorderStyleValues.Thin
			};
			rightBorder.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color()
			{ Indexed = 64U });
			var topBorder = new TopBorder() { Style = BorderStyleValues.Thin };
			topBorder.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color()
			{ Indexed = 64U });
			var bottomBorder = new BottomBorder()
			{
				Style = BorderStyleValues.Thin
			};
			bottomBorder.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color()
			{ Indexed = 64U });
			borderThin.Append(leftBorder);
			borderThin.Append(rightBorder);
			borderThin.Append(topBorder);
			borderThin.Append(bottomBorder);
			borderThin.Append(new DiagonalBorder());
			borders.Append(borderNoBorder);
			borders.Append(borderThin);
			var cellStyleFormats = new CellStyleFormats() { Count = 1U };
			var cellFormatStyle = new CellFormat()
			{
				NumberFormatId = 0U,
				FontId = 0U,
				FillId = 0U,
				BorderId = 0U
			};
			cellStyleFormats.Append(cellFormatStyle);
			var cellFormats = new CellFormats() { Count = 3U };
			var cellFormatFont = new CellFormat()
			{
				NumberFormatId = 0U,
				FontId = 0U,
				FillId = 0U,
				BorderId = 0U,
				FormatId = 0U,
				ApplyFont = true
			};
			var cellFormatFontAndBorder = new CellFormat()
			{
				NumberFormatId = 0U,
				FontId = 0U,
				FillId = 0U,
				BorderId = 1U,
				FormatId = 0U,
				ApplyFont = true,
				ApplyBorder = true
			};
			var cellFormatTitle = new CellFormat()
			{
				NumberFormatId = 0U,
				FontId = 1U,
				FillId = 0U,
				BorderId = 0U,
				FormatId = 0U,
				Alignment = new Alignment()
				{
					Vertical = VerticalAlignmentValues.Center,
					WrapText = true,
					Horizontal = HorizontalAlignmentValues.Center
				},
				ApplyFont = true
			};
			cellFormats.Append(cellFormatFont);
			cellFormats.Append(cellFormatFontAndBorder);
			cellFormats.Append(cellFormatTitle);
			var cellStyles = new CellStyles() { Count = 1U };
			cellStyles.Append(new CellStyle()
			{
				Name = "Normal",
				FormatId = 0U,
				BuiltinId = 0U
			});
			var differentialFormats = new DocumentFormat.OpenXml.Office2013.Excel.DifferentialFormats() { Count = 0U };

			var tableStyles = new TableStyles()
			{
				Count = 0U,
				DefaultTableStyle = "TableStyleMedium2",
				DefaultPivotStyle = "PivotStyleLight16"
			};
			var stylesheetExtensionList = new StylesheetExtensionList();
			var stylesheetExtension1 = new StylesheetExtension()
			{
				Uri = "{EB79DEF2-80B8-43e5-95BD-54CBDDF9020C}"
			};
			stylesheetExtension1.AddNamespaceDeclaration("x14", "http://schemas.microsoft.com/office/spreadsheetml/2009/9/main");
			stylesheetExtension1.Append(new SlicerStyles()
			{
				DefaultSlicerStyle = "SlicerStyleLight1"
			});
			var stylesheetExtension2 = new StylesheetExtension()
			{
				Uri = "{9260A510-F301-46a8-8635-F512D64BE5F5}"
			};
			stylesheetExtension2.AddNamespaceDeclaration("x15", "http://schemas.microsoft.com/office/spreadsheetml/2010/11/main");
			stylesheetExtension2.Append(new TimelineStyles()
			{
				DefaultTimelineStyle = "TimeSlicerStyleLight1"
			});
			stylesheetExtensionList.Append(stylesheetExtension1);
			stylesheetExtensionList.Append(stylesheetExtension2);
			sp.Stylesheet.Append(fonts);
			sp.Stylesheet.Append(fills);
			sp.Stylesheet.Append(borders);
			sp.Stylesheet.Append(cellStyleFormats);
			sp.Stylesheet.Append(cellFormats);
			sp.Stylesheet.Append(cellStyles);
			sp.Stylesheet.Append(differentialFormats);
			sp.Stylesheet.Append(tableStyles);
			sp.Stylesheet.Append(stylesheetExtensionList);
		}
		/// Получение номера стиля из типа
		private static uint GetStyleValue(ExcelStyleInfoType styleInfo)
		{
			return styleInfo switch
			{
				ExcelStyleInfoType.Title => 2U,
				ExcelStyleInfoType.TextWithBorder => 1U,
				ExcelStyleInfoType.Text => 0U,
				_ => 0U,
			};
		}
		protected override void CreateExcel(ExcelInfo info)
		{
			_spreadsheetDocument = SpreadsheetDocument.Create(info.FileName,
		   SpreadsheetDocumentType.Workbook);
			var workbookpart = _spreadsheetDocument.AddWorkbookPart();
			workbookpart.Workbook = new Workbook(); CreateStyles(workbookpart);
			_shareStringPart = _spreadsheetDocument.WorkbookPart!.GetPartsOfType<SharedStringTablePart>().Any()
			?
			_spreadsheetDocument.WorkbookPart.GetPartsOfType<SharedStringTablePart>().First()
			:
			_spreadsheetDocument.WorkbookPart.AddNewPart<SharedStringTablePart>();
			if (_shareStringPart.SharedStringTable == null)
			{
				_shareStringPart.SharedStringTable = new SharedStringTable();
			}

			var worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
			worksheetPart.Worksheet = new Worksheet(new SheetData());

			var sheets = _spreadsheetDocument.WorkbookPart.Workbook.AppendChild(new Sheets());
			var sheet = new Sheet()
			{
				Id = _spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart),
				SheetId = 1,
				Name = "Лист"
			};
			sheets.Append(sheet);
			_worksheet = worksheetPart.Worksheet;
		}
		protected override void InsertCellInWorksheet(ExcelCellParameters excelParams)
		{
			if (_worksheet == null || _shareStringPart == null)
			{
				return;
			}
			var sheetData = _worksheet.GetFirstChild<SheetData>();
			if (sheetData == null)
			{
				return;
			}

			Row row;
			if (sheetData.Elements<Row>().Where(r => r.RowIndex! == excelParams.RowIndex).Any())
			{
				row = sheetData.Elements<Row>().Where(r => r.RowIndex! == excelParams.RowIndex).First();
			}
			else
			{
				row = new Row() { RowIndex = excelParams.RowIndex };
				sheetData.Append(row);
			}

			Cell cell;
			if (row.Elements<Cell>().Where(c => c.CellReference!.Value == excelParams.CellReference).Any())
			{
				cell = row.Elements<Cell>().Where(c => c.CellReference!.Value == excelParams.CellReference).First();
			}
			else
			{

				Cell? refCell = null;
				foreach (Cell rowCell in row.Elements<Cell>())
				{
					if (string.Compare(rowCell.CellReference!.Value, excelParams.CellReference, true) > 0)
					{
						refCell = rowCell;
						break;
					}
				}
				var newCell = new Cell()
				{
					CellReference = excelParams.CellReference
				};
				row.InsertBefore(newCell, refCell);
				cell = newCell;
			}

			_shareStringPart.SharedStringTable.AppendChild(new SharedStringItem(new Text(excelParams.Text)));
			_shareStringPart.SharedStringTable.Save();
			cell.CellValue = new CellValue((_shareStringPart.SharedStringTable.Elements<SharedStringItem>().Count() - 1).ToString());
			cell.DataType = new EnumValue<CellValues>(CellValues.SharedString);
			cell.StyleIndex = GetStyleValue(excelParams.StyleInfo);
		}
		protected override void MergeCells(ExcelMergeParameters excelParams)
		{
			if (_worksheet == null)
			{
				return;
			}
			MergeCells mergeCells;
			if (_worksheet.Elements<MergeCells>().Any())
			{
				mergeCells = _worksheet.Elements<MergeCells>().First();
			}
			else
			{
				mergeCells = new MergeCells();
				if (_worksheet.Elements<CustomSheetView>().Any())
				{
					_worksheet.InsertAfter(mergeCells, _worksheet.Elements<CustomSheetView>().First());
				}
				else
				{
					_worksheet.InsertAfter(mergeCells, _worksheet.Elements<SheetData>().First());
				}
			}
			var mergeCell = new MergeCell()
			{
				Reference = new StringValue(excelParams.Merge)
			};
			mergeCells.Append(mergeCell);
		}
		protected override void SaveExcel(ExcelInfo info)
		{
			if (_spreadsheetDocument == null)
			{
				return;
			}
			_spreadsheetDocument.WorkbookPart!.Workbook.Save();
			_spreadsheetDocument.Dispose();
		}

	}
}