public async Task HandleMessage(SocketMessage arg)
{
var shard = _client.GetShardFor((arg.Channel as IGuildChannel)?.Guild);
if (shard.ConnectionState != ConnectionState.Connected)
return; // Discard messages while the bot "catches up" to avoid unnecessary CPU pressure causing timeouts
RegisterMessageMetrics(arg);
// Ignore system messages (member joined, message pinned, etc)
var msg = arg as SocketUserMessage;
if (msg == null) return;
// Fetch information about the guild early, as we need it for the logger cleanup
GuildConfig cachedGuild = default; // todo: is this default correct?
if (msg.Channel is ITextChannel textChannel) cachedGuild = await _cache.GetGuildDataCached(textChannel.GuildId);
// Pass guild bot/WH messages onto the logger cleanup service, but otherwise ignore
if ((msg.Author.IsBot || msg.Author.IsWebhook) && msg.Channel is ITextChannel)
{
await _loggerClean.HandleLoggerBotCleanup(arg, cachedGuild);
return;
}
// Add message info as Sentry breadcrumb
_msg = msg;
_sentryScope.AddBreadcrumb(msg.Content, "event.message", data: new Dictionary<string, string>
{
{"user", msg.Author.Id.ToString()},
{"channel", msg.Channel.Id.ToString()},
{"guild", ((msg.Channel as IGuildChannel)?.GuildId ?? 0).ToString()},
{"message", msg.Id.ToString()},
});
_sentryScope.SetTag("shard", shard.ShardId.ToString());
// Add to last message cache
_lastMessageCache.AddMessage(arg.Channel.Id, arg.Id);
// We fetch information about the sending account from the cache
var cachedAccount = await _cache.GetAccountDataCached(msg.Author.Id);
// this ^ may be null, do remember that down the line
int argPos = -1;
// Check if message starts with the command prefix
if (msg.Content.StartsWith("pk;", StringComparison.InvariantCultureIgnoreCase)) argPos = 3;
else if (msg.Content.StartsWith("pk!", StringComparison.InvariantCultureIgnoreCase)) argPos = 3;
else if (msg.Content != null && StringUtils.HasMentionPrefix(msg.Content, ref argPos, out var id)) // Set argPos to the proper value
if (id != _client.CurrentUser.Id) // But undo it if it's someone else's ping
argPos = -1;
// If it does, try executing a command
if (argPos > -1)
{
_logger.Verbose("Parsing command {Command} from message {Channel}-{Message}", msg.Content, msg.Channel.Id, msg.Id);
// Essentially move the argPos pointer by however much whitespace is at the start of the post-argPos string
var trimStartLengthDiff = msg.Content.Substring(argPos).Length -
msg.Content.Substring(argPos).TrimStart().Length;
argPos += trimStartLengthDiff;
await _tree.ExecuteCommand(new Context(_services, msg, argPos, cachedAccount?.System));
}
else if (cachedAccount != null)
{
// If not, try proxying anyway
// but only if the account data we got before is present
// no data = no account = no system = no proxy!
try
{
await _proxy.HandleMessageAsync(cachedGuild, cachedAccount, msg, doAutoProxy: true);
}
catch (PKError e)
{
await arg.Channel.SendMessageAsync($"{Emojis.Error} {e.Message}");
}
}
}