command line parsing

Program.cs

@@ -2,17 +2,23 @@
 using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
-using System.Linq;
+using System.CommandLine.DragonFruit;
 using CsvHelper;
-using BunyMuny;
+using CsvHelper.Configuration.Attributes;
 
 namespace BunyMuny {
 	class Program {
-		static int Main(string[] args) {
+		/// <summary>
+		/// BunyMuny parses the CSV output of various bank statement listings and converts it to something more human readable with nice visualisations.
+		/// </summary>
+		/// <param name="file">The CSV file to read</param>
+		/// <param name="rules">The JSON file to use for rules when parsing statement descriptions</param>
+		/// <returns></returns>
+		static int Main(string file = "test.csv", string rules = "rules.json") {
 			Bank bank = Bank.ME;
 			var statements = new List<Statement>();
 
-			using (var sr = new StreamReader("/mnt/code/cs/bunymuny/test.csv")) {
+			using (var sr = new StreamReader(file)) {
 				using (var csv = new CsvReader(sr, CultureInfo.InvariantCulture)) {
 					csv.Read();
 					csv.ReadHeader();
@@ -40,6 +46,10 @@ namespace BunyMuny {
 									Value = value
 								});
 								break;
+
+							default:
+								Console.WriteLine(":(");
+								return 1;
 						}
 					}
 

Statement.cs

@@ -3,12 +3,18 @@ using System;
 namespace BunyMuny {
 	public class Statement {
 		public DateTime Date;
-		public string Description;
+		private string _description;
+		public string Description {
+			get => string.IsNullOrWhiteSpace(_description) ? OriginalDescription : _description;
+			set { _description = value; }
+		}
+
+		public string OriginalDescription;
 		public double Value;
 		public string Category;
 
 		public override string ToString() {
-			return $"${Math.Abs(Value)} {(Value < 0 ? "to" : "from")} {Description} on {Date.ToString("MMM d yyyy")}";
+			return $"${Math.Abs(Value)} {(Value < 0 ? "to" : "from")} {(Description)} on {Date.ToString("MMM d yyyy")}";
 		}
 	}
 }

bunymuny.csproj

@@ -7,6 +7,12 @@
 
   <ItemGroup>
     <PackageReference Include="CsvHelper" Version="15.0.6" />
+    <PackageReference Include="System.CommandLine" Version="2.0.0-beta1.20371.2" />
+    <PackageReference Include="System.CommandLine.DragonFruit" Version="0.3.0-alpha.20371.2" />
   </ItemGroup>
 
+  <PropertyGroup>
+    <RunWorkingDirectory>$(MSBuildProjectDirectory)</RunWorkingDirectory>
+  </PropertyGroup>
+
 </Project>