using BusinessLogic.OfficePackage.HelperEnums;
using BusinessLogic.OfficePackage.HelperModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BusinessLogic.OfficePackage
{
	public abstract class AbstractSaveToExcelGuarantor
	{
		public void CreateReport(ExcelInfoGuarantor info)
		{
			CreateExcel(info);

			InsertCellInWorksheet(new ExcelCellParameters
			{
				ColumnName = "A",
				RowIndex = 1,
				Text = info.Title,
				StyleInfo = ExcelStyleInfoType.Title
			});

			MergeCells(new ExcelMergeParameters
			{
				CellFromName = "A1",
				CellToName = "C1"
			});

			InsertCellInWorksheet(new ExcelCellParameters
			{
				ColumnName = "A",
				RowIndex = 2,
				Text = "Работники",
				StyleInfo = ExcelStyleInfoType.Title
			});
			InsertCellInWorksheet(new ExcelCellParameters
			{
				ColumnName = "B",
				RowIndex = 2,
				Text = "Изделия",
				StyleInfo = ExcelStyleInfoType.Title
			});

			MergeCells(new ExcelMergeParameters
			{
				CellFromName = "B2",
				CellToName = ColumnLetter(info.maxleng + 1) + "2"
			});
			uint rowIndex = 3;
			foreach (var pc in info.workerProducts)
			{
				InsertCellInWorksheet(new ExcelCellParameters
				{
					ColumnName = "A",
					RowIndex = rowIndex,
					Text = pc.WorkerName,
					StyleInfo = ExcelStyleInfoType.Text
				});
				int place = 2;
				foreach (var product in pc.Products)
				{
					InsertCellInWorksheet(new ExcelCellParameters
					{
						ColumnName = ColumnLetter(place),
						RowIndex = rowIndex,
						Text = product,
						StyleInfo = ExcelStyleInfoType.TextWithBorder
					});

					place++;
				}
				rowIndex++;
			}

			SaveExcel(info);
		}
		private static string ColumnLetter(int columnIndex)
		{
			int dividend = columnIndex;
			string columnName = String.Empty;
			int modulo;

			while (dividend > 0)
			{
				modulo = (dividend - 1) % 26;
				columnName = Convert.ToChar(65 + modulo).ToString() + columnName;
				dividend = (dividend - modulo) / 26;
			}

			return columnName;
		}
		protected abstract void CreateExcel(ExcelInfoGuarantor info);
		protected abstract void InsertCellInWorksheet(ExcelCellParameters excelParams);
		protected abstract void MergeCells(ExcelMergeParameters excelParams);
		protected abstract void SaveExcel(ExcelInfoGuarantor info);
	}
}