Admin import functional

Web/DAL/LogImportTemplateWriter.cs

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+using System.IO;
+using System.Linq;
+using ExcelLibrary.SpreadSheet;
+using MileageTraker.Web.Models;
+using MileageTraker.Web.Utility;
+using MileageTraker.Web.ViewModels;
+using MileageTraker.Web.ViewModels.CreateLog;
+
+namespace MileageTraker.Web.DAL
+{
+	public static class LogImportTemplateWriter
+	{
+		public static byte[] Write()
+		{
+			var example =
+				new LogImportViewModel
+					{
+						CityName = "City Name",
+						Date = "10-20-2010",
+						EndOdometer = "10010",
+						GasPurchased = "3.141",
+						LogType = "Commuting",
+						Notes = "Template",
+						Purpose = "Training",
+						VehicleId = "1000"
+					};
+			const string headerFormat = "[Blue]";
+
+			var worksheet = new Worksheet("LogImport");
+
+			ExcelWriter<LogImportViewModel>.WriteColumnHeaders(worksheet, formatString: headerFormat);
+			ExcelWriter<LogImportViewModel>.WriteItems(worksheet, new[] { example }, 1); // write the example item
+
+			var propertyCount = ExcelWriter<LogImportViewModel>.GetPropertyCount();
+
+			worksheet.Cells[0, propertyCount + 1] = new Cell("Accepted values for fields:", headerFormat);
+
+			// purposes
+			var dataService = new DataService();
+			var puposes =
+				from pt in dataService.GetPurposeTypes()
+				orderby pt.SortOrder ascending 
+				select pt.Purpose;
+			worksheet.Cells[1, propertyCount + 2] = new Cell("Purpose", headerFormat);
+			ExcelWriter<string>.WriteItems(worksheet, puposes, 2, propertyCount + 2);
+
+			// log types
+			var logTypes =
+				from i in (new MileageLogType()).GetSelectListItems()
+				select i.Text;
+			worksheet.Cells[1, propertyCount + 1] = new Cell("Type", headerFormat);
+			ExcelWriter<string>.WriteItems(worksheet, logTypes, 2, propertyCount + 1);
+
+			ExcelWriter<LogImportViewModel>.PadWorksheet(worksheet);
+
+			// save it
+			var workbook = new Workbook();
+			workbook.Worksheets.Add(worksheet);
+			using (var stream = new MemoryStream())
+			{
+				workbook.Save(stream);
+				return stream.ToArray();
+			}
+		}
+	}
+}