private async Task <IPagedList <Message> > MarkAsRead(string currentUserId, string recipientId, IPagedList <Message> userMessages)
{
if ((userMessages.FirstOrDefault())?.RecipientId != currentUserId)
{
return(userMessages);
}
userMessages.TakeWhile(m => !m.IsRead).ToList().ForEach(m => m.MarkAsRead());
await database.Complete();
return(userMessages);
}