public async Task <string> Execute(object sender, MessageEventArgs args)
{
var text = args.Message.Text;
if (CommandString.TryParse(text, out var cmd))
{
if (cmd.Username != null && cmd.Username != Username)
{
Log.LogDebug("Message not directed at us");
return(null);
}
if (Commands.ContainsKey(cmd.Command))
{
try
{
Log.LogDebug($"Handling message via {Commands[cmd.Command].GetType().Name}");
return(await Commands[cmd.Command].Execute(cmd, args));
}
catch (Exception e)
{
Log.LogError(e, $"Error while executing command {cmd.Command}!");
}
}
else
{
Log.LogDebug($"Command {cmd.Command} not found");
}
}
return(null);
}
public static bool TryParse(string s, out CommandString result)
{
result = null;
if (string.IsNullOrWhiteSpace(s) || s[0] != '/')
{
return(false);
}
string[] words = s.Split(WS_CHARS, StringSplitOptions.RemoveEmptyEntries);
var cmdRegex = new Regex(@"/(?<cmd>\w+)(@(?<name>\w+))?");
var match = cmdRegex.Match(words.First());
if (!match.Success)
{
return(false);
}
string cmd = match.Groups["cmd"].Captures[0].Value;
string username = match.Groups["name"].Captures.Count > 0 ? match.Groups["name"].Captures[0].Value : null;
string[] parameters = words.Skip(1).ToArray();
result = new CommandString(cmd, username, parameters);
return(true);
}
