Import FuelLog

Web/DAL/FuelmanCsvImporter.cs

@@ -0,0 +1,76 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using CsvHelper;
+using CsvHelper.Configuration;
+using MileageTraker.Web.Models;
+using MileageTraker.Web.Utility;
+
+namespace MileageTraker.Web.DAL
+{
+	public class FuelmanCsvImporter
+    {
+		private sealed class FuelmanCsvClassMap : CsvClassMap<FuelLog>
+		{
+			public FuelmanCsvClassMap()
+			{
+				Map(m => m.Date).ConvertUsing(row =>
+					{
+						var date = row.GetField("CEDATE");
+						var time = row.GetField<int>("CETIME");
+						var dttm = string.Format(@"{0} {1:00:00}", date, time);
+						return DateTime.ParseExact(dttm, @"M/d/yyyy HH:mm", CultureInfo.InvariantCulture);
+					});
+				Map(m => m.DriverFullName).ConvertUsing(row =>
+					{
+						var name = row.GetField("CEEMNAME");
+						return NameNormalizer.Normalize(name);
+					});
+
+				Map(m => m.TagNumber).Name("CEVEHNO");
+				Map(m => m.Odometer).Name("CEODOMETER");
+				Map(m => m.CityName).ConvertUsing(row =>
+					{
+						var city = row.GetField("CESITCTY");
+						return city.ToLower().ToTitleCase();
+					});
+				Map(m => m.MPG).Name("CEMPG");
+				Map(m => m.GasPurchased).Name("CEQTY");
+				Map(m => m.TotalPrice).Name("CECUSAMT");
+			}
+		}
+
+		public static IEnumerable<FuelLog> Import(string filename)
+		{
+			var fileInfo = new FileInfo(filename);
+			if (!fileInfo.Exists)
+				throw new ImportException("Cannot find file '" + filename + "'");
+
+			using (var tr = File.OpenText(fileInfo.FullName))
+			{
+ 				var csv = new CsvReader(tr);
+				csv.Configuration.RegisterClassMap<FuelmanCsvClassMap>();
+
+				var fuelLogs = new List<FuelLog>();
+				while (csv.Read())
+				{
+					try
+					{
+						// Skip non-FUEL entries
+						if (csv.GetField<string>("CEPRDTYPE") != "FUEL")
+							continue;
+
+						fuelLogs.Add(csv.GetRecord<FuelLog>());
+					}
+					catch (Exception ex)
+					{
+						throw new ImportException("Problem with document encountered on row " + csv.Row + ". " + ex.Message);
+					}
+				}
+
+				return fuelLogs;
+			}
+		}
+    }
+}