using DocumentFormat.OpenXml.Bibliography;
using ElectronicsShopBusinessLogic.OfficePackage.HelperEnums;
using ElectronicsShopBusinessLogic.OfficePackage.HelperModels;
using MigraDoc.DocumentObjectModel;
using MigraDoc.DocumentObjectModel.Tables;
using MigraDoc.Rendering;
using PdfSharp.Pdf;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ElectronicsShopBusinessLogic.OfficePackage.Implements {
	public class SaveToPdfClient : AbstractSaveToPdfClient {

		private Document? _document;
		private Section? _section;
		private Table? _table;

		// Типы выравнивания
		private static ParagraphAlignment GetParagraphAlignment(PdfParagraphAlignmentType type) {
			return type switch {
				PdfParagraphAlignmentType.Center => ParagraphAlignment.Center,
				PdfParagraphAlignmentType.Left => ParagraphAlignment.Left,
				PdfParagraphAlignmentType.Right => ParagraphAlignment.Right,
				_ => ParagraphAlignment.Justify
			};
		}

		// Создание стилей для документа
		private static void DefineStyles(Document document) {
			var style = document.Styles["Normal"];
			style.Font.Name = "Times New Roman";
			style.Font.Size = 14;
			style = document.Styles.AddStyle("NormalTitle", "Normal");
			style.Font.Bold = true;
		}

		protected override void CreateParagraph(PdfParagraph pdfParagraph) {
			if (_section == null) {
				return;
			}
			var paragraph = _section.AddParagraph(pdfParagraph.Text);
			paragraph.Format.SpaceAfter = "1cm";
			paragraph.Format.Alignment = GetParagraphAlignment(pdfParagraph.alignmentType);
			paragraph.Style = pdfParagraph.Style;
		}

		protected override void CreateRow(PdfRowParameters rowParameters) {
			if (_table == null) {
				return;
			}
			var row = _table.AddRow();
			for (int i = 0; i < rowParameters.Text.Count; ++i) {
				// заполнение ячейки (добавление параграфа в ячейку)
				row.Cells[i].AddParagraph(rowParameters.Text[i]);
				if (!string.IsNullOrEmpty(rowParameters.Style)) {
					row.Cells[i].Style = rowParameters.Style;
				}
				Unit borderWidth = 0.5;
				row.Cells[i].Borders.Left.Width = borderWidth;
				row.Cells[i].Borders.Right.Width = borderWidth;
				row.Cells[i].Borders.Top.Width = borderWidth;
				row.Cells[i].Borders.Bottom.Width = borderWidth;

				row.Cells[i].Format.Alignment = GetParagraphAlignment(rowParameters.alignmentType);
				row.Cells[i].VerticalAlignment = VerticalAlignment.Center;
			}
		}

		protected override void CreateTable(List<string> columns) {
			if (_document == null) {
				return;
			}
			_table = _document.LastSection.AddTable();
			foreach (var elem in columns) {
				_table.AddColumn(elem);
			}
		}

		protected override void CretePdf(PdfInfoClient info) {
			_document = new Document();
			DefineStyles(_document);
			// Ссылка нп первую секцию
			_section = _document.AddSection();
		}

		protected override PdfDocument SavePdf(PdfInfoClient info) {
			var renderer = new PdfDocumentRenderer(true) {
				Document = _document,
			};
			renderer.RenderDocument();
			renderer.PdfDocument.Save(info.FileName);
			return renderer.PdfDocument;
		}
	}
}