public async Task <IActionResult> OnGetAsync()
{
var hexId = ((string)RouteData.Values["chatId"]).Trim();
if (hexId.Length == 16)
{
ChatId = Convert.ToInt64(hexId, 16);
var chatGroup = await _telegramService.GetGroup(ChatId);
Title = chatGroup.Title;
var messages = new Dictionary <long, TelegramMessage>();
// Load messages already logged.
foreach (var messageFromAudit in _messageAuditService.ReadLog(ChatId))
{
// Use Try Add to avoid errors if we managed to record the same message.
messages.TryAdd(messageFromAudit.MessageId, messageFromAudit);
}
// Build up a list of new messages to log as they should be logged in reverse time order.
var toAudit = new List <TelegramMessage>();
await foreach (var messageFromTelegram in _telegramService.GetMessageHistory(ChatId))
{
// Check if we already audited this message
if (!messages.ContainsKey(messageFromTelegram.MessageId))
{
// The message is new so we add it to the output and plan to log it
messages.Add(messageFromTelegram.MessageId, messageFromTelegram);
toAudit.Add(messageFromTelegram);
}
}
if (toAudit.Any())
{
_messageAuditService.LogMessage(toAudit.OrderBy(m => m.Sent).ToList());
}
Messages = messages.Values.OrderByDescending(m => m.Sent);
}
return(Page());
}
