Implement "!bug <number>" command.

svn path=/trunk/; revision=20165

irc/TechBot/TechBot.Library/BugCommand.cs

@@ -0,0 +1,54 @@
+using System;
+
+namespace TechBot.Library
+{
+	public class BugCommand : BaseCommand, ICommand
+	{
+		private IServiceOutput serviceOutput;
+		private string bugUrl;
+
+		public BugCommand(IServiceOutput serviceOutput,
+		                  string bugUrl)
+		{
+			this.serviceOutput = serviceOutput;
+			this.bugUrl = bugUrl;
+		}
+		
+		public bool CanHandle(string commandName)
+		{
+			return CanHandle(commandName,
+			                 new string[] { "bug" });
+		}
+
+		public void Handle(MessageContext context,
+		                   string commandName,
+		                   string parameters)
+		{
+			string bugText = parameters;
+			if (bugText.Equals(String.Empty))
+			{
+				serviceOutput.WriteLine(context,
+				                        "Please provide a valid bug number.");
+				return;
+			}
+
+			NumberParser np = new NumberParser();
+			long bug = np.Parse(bugText);
+			if (np.Error)
+			{
+				serviceOutput.WriteLine(context,
+				                        String.Format("{0} is not a valid bug number.",
+				                                      bugText));
+				return;
+			}
+
+			serviceOutput.WriteLine(context,
+			                        String.Format(bugUrl, bug));
+		}
+		
+		public string Help()
+		{
+			return "!bug <number>";
+		}
+	}
+}