public async Task Tag(Context ctx)
{
ctx.CheckSystem();
var newTag = ctx.RemainderOrNull();
ctx.System.Tag = newTag;
if (newTag != null)
{
if (newTag.Length > Limits.MaxSystemTagLength)
{
throw Errors.SystemNameTooLongError(newTag.Length);
}
// Check unproxyable messages *after* changing the tag (so it's seen in the method) but *before* we save to DB (so we can cancel)
var unproxyableMembers = await _members.GetUnproxyableMembers(ctx.System);
if (unproxyableMembers.Count > 0)
{
var msg = await ctx.Reply(
$"{Emojis.Warn} Changing your system tag to '{newTag.SanitizeMentions()}' will result in the following members being unproxyable, since the tag would bring their name over {Limits.MaxProxyNameLength} characters:\n**{string.Join(", ", unproxyableMembers.Select((m) => m.Name.SanitizeMentions()))}**\nDo you want to continue anyway?");
if (!await ctx.PromptYesNo(msg))
{
throw new PKError("Tag change cancelled.");
}
}
}
await _systems.Save(ctx.System);
await ctx.Reply($"{Emojis.Success} System tag {(newTag != null ? "changed" : "cleared")}.");
await _proxyCache.InvalidateResultsForSystem(ctx.System);
}