public async Task <IMessage> PipeCommand(IInvocationContext context, IMessage message)
{
List <string> cmds = string.Join(" ", message.Text.GetCommandArguments()).Split('|').ToList();
Message basicMessage = Message.Create(message.Text, message.Attachments?.ToArray());
basicMessage.Text = string.Join(" ", cmds.First().Split(' ').Skip(1).ToList()).Trim();
bool appendNext = false;
foreach (var cmd in cmds)
{
List <string> call = cmd.Trim().Split(' ').ToList();
if (!_commandRegistry.Exists(call.First()))
{
// Special commands.
if (call[0] == "cleartext")
{
basicMessage.Text = string.Empty;
}
else if (call[0] == "clearattachment")
{
basicMessage.Attachments?.ForEach(x => x.Contents?.Dispose());
basicMessage.Attachments = null;
}
else if (call[0] == "append")
{
appendNext = true;
}
continue;
}
if (_commandRegistry.IsCommandComplexOrNull(call.First()))
{
continue;
}
IMessage result;
try
{
result = await _commandRegistry.ExecuteCommandAsync(call.First(), context,
call.Count == 1
?basicMessage
: Message.Create(string.Join(" ", call.Skip(1)), basicMessage.Attachments?.ToArray()));
}
catch (Exception e)
{
// Quickly dispose what we can.
basicMessage.Attachments?.ForEach(x => x.Contents?.Dispose());
throw (e);
}
if (!string.IsNullOrEmpty(result.Text))
{
basicMessage.Text = result.Text;
}
if (result.Attachments != null)
{
if (appendNext)
{
basicMessage.Attachments?.AddRange(result.Attachments);
appendNext = false;
}
else
{
if (basicMessage.Attachments?.Count > 0)
{
// Prevent leak since we're going out of scope
basicMessage.Attachments.ForEach(x => x.Contents?.Dispose());
}
basicMessage.Attachments = result.Attachments;
}
}
}
return(basicMessage);
}
