Adding method for password generation

CLI/Program.cs

@@ -28,6 +28,12 @@ class Program
 						return 1;
 					}
 					break;
+				case "new":
+					if (New() == 1)
+					{
+						return 1;
+					}
+					break;
 				default:
 					HelpMessage();
 					break;
@@ -37,6 +43,61 @@ class Program
 		return 0;
 	}
 
+	private static int Generate(string name, string length = PasswordGenerator.DEFAULT_LENGTH.ToString(), string symbols = 'true')
+	{
+		try
+		{
+			//do not save output, just check if exceptions are thrown
+			Convert.ToInt32(length);
+			Convert.ToBoolean(symbols);
+
+			PasswordGenerator.ExceptionOccured += (e) => ErrorOccured(e, "There was a problem generating your password. See details");
+
+			File.WriteAllText(
+				$"{ConfigFileManager.GetPath()}\\{name}",
+				PasswordGenerator.New(
+					ConfigFileManager.GetRecipient(),
+					length,
+					symbols
+				)
+			)
+			return 0;
+		}
+		catch (FormatException e)
+		{
+			ErrorOccured(e, "Please provide valid parameters:\n\t- length:\tnumber\n\t- symbols\ttrue|false)");
+			return 1;
+		}
+		catch (IOException e)
+		{
+			ErrorOccured(e, "IO Error");
+		}
+	}
+
+	static int New()
+	{
+		switch (args.Length)
+		{
+			case 4:
+				Generate(args[1], args[2], args[3]);
+				break;
+			case 3:
+				//TODO: determine if the second flag is a bool or an int
+				Generate(args[1], args[2]);
+				break;
+			case 2:
+				Generate(args[1]);
+				break;
+			default:
+				//either there's an unexpected argument, or not enough
+				ErrorOccured(new ArgumentException(), $"Invalid or missing arguments, see '{BINARY_NAME} help'");
+				return 1;
+				break;
+		}
+		
+		return 0;
+	}
+
 	static int ListPasswords()
 	{
 		DirectoryInfo d;