public static async Task <IReadOnlyCollection <DiscordMessage> > GetMessagesBeforeAsync(this DiscordChannel channel, ulong beforeMessageId, int limit = 100, DateTime?timeLimit = null)
{
if (timeLimit > DateTime.UtcNow)
{
throw new ArgumentException("Time limit can't be set in the future", nameof(timeLimit));
}
var afterTime = timeLimit ?? DateTime.UtcNow.AddSeconds(-30);
var messages = await channel.GetMessagesBeforeCachedAsync(beforeMessageId, limit).ConfigureAwait(false);
return(messages.TakeWhile(m => m.CreationTimestamp > afterTime).ToList().AsReadOnly());
}
