check if a direct message has seen by user about instagramapisharp HOT 3 CLOSED

public async void CheckDMSeen()
{
    var inboxResult = await InstaApi.MessagingProcessor.GetDirectInboxAsync(PaginationParameters.MaxPagesToLoad(1));
    if (inboxResult.Succeeded)
    {
        // lets check all threads
        var allThreads = inboxResult.Value.Inbox.Threads;
        // or single thread:
        // var singleThreadResult = await InstaApi.MessagingProcessor.GetDirectInboxThreadAsync(allThreads[0].ThreadId, PaginationParameters.MaxPagesToLoad(1));

        foreach (var thread in allThreads)
        {
            var user = thread.Users.FirstOrDefault().UserName;
            var reversed = thread.Items;
            reversed.Reverse();
            int ix = 0;
            if (thread.LastSeenAt.LastOrDefault() != null)
            {
                var lastSeenAt = thread.LastSeenAt.LastOrDefault();
                var itemId = lastSeenAt.ItemId;
                var single = reversed.FirstOrDefault(a => a.ItemId == itemId);
                var index = reversed.IndexOf(single);
                if (index != -1)
                    ix = thread.Items.Count - (index + 1);
                Console.WriteLine($"{user} has ({ix}) new messages, last message seen at {lastSeenAt.SeenTime}");
                Console.WriteLine();
            }
            else
                Console.WriteLine($"{user} isn't seen any message");
        }
    }
}