protected virtual void OnActivitiesReceived(object sender, IList <Activity> activities)
{
foreach (Activity activity in activities)
{
string messageId = activity.ReplyToId;
if (!string.IsNullOrEmpty(messageId))
{
MessageIdAndTimestamp messageIdAndTimestamp = new MessageIdAndTimestamp(messageId);
TwitterUserIdentifier twitterUserIdentifier =
_messageAndUserIdCache.GetTwitterUserWaitingForReply(messageIdAndTimestamp);
if (twitterUserIdentifier != null)
{
ReplyInTwitter(activity, twitterUserIdentifier);
}
else
{
// Looks like we received the reply activity before we got back
// the response from sending the original message to the bot
_messageAndUserIdCache.AddPendingReplyFromBotToTwitterUser(messageIdAndTimestamp, activity);
System.Diagnostics.Debug.WriteLine($"Stored activity with message ID '{messageId}'");
}
}
}
}
public bool AddTwitterUserWaitingForReply(
MessageIdAndTimestamp messageIdAndTimestamp, TwitterUserIdentifier twitterUserIdentifier)
{
if (messageIdAndTimestamp != null &&
twitterUserIdentifier != null &&
!_twitterUsersWaitingForReply.ContainsKey(messageIdAndTimestamp))
{
_twitterUsersWaitingForReply.Add(messageIdAndTimestamp, twitterUserIdentifier);
return(true);
}
return(false);
}
protected virtual void ReplyInTwitter(Activity activity, TwitterUserIdentifier twitterUserIdentifier)
{
if (activity == null || twitterUserIdentifier == null)
{
throw new ArgumentNullException("Either the activity or the Twitter user identifier is null");
}
string messageId = activity.ReplyToId;
if (string.IsNullOrEmpty(messageId))
{
throw new ArgumentNullException("The activity is missing the 'reply to ID'");
}
System.Diagnostics.Debug.WriteLine(
$"Replying to user '{twitterUserIdentifier.ScreenName}' using message in activity with message ID '{messageId}'");
_twitterManager.SendMessage(activity.Text, twitterUserIdentifier.TwitterUserId, twitterUserIdentifier.ScreenName);
}
/// <summary>
/// Sends the message in the received tweet to the bot via Direct Line.
/// If we get a valid response indicating that the message was received by the bot,
/// we will store the Twitter user identifiers (to be able to reply back).
/// </summary>
/// <param name="sender"></param>
/// <param name="messageEventArgs">Contains the Twitter message details.</param>
protected virtual async void OnTweetReceivedAsync(object sender, Tweetinvi.Events.MessageEventArgs messageEventArgs)
{
string messageId = await _directLineManager.SendMessageAsync(
messageEventArgs.Message.Text,
messageEventArgs.Message.SenderId.ToString(),
messageEventArgs.Message.SenderScreenName);
if (string.IsNullOrEmpty(messageId))
{
System.Diagnostics.Debug.WriteLine(
$"Failed to send the message from user '{messageEventArgs.Message.SenderScreenName}' to the bot - message text was '{messageEventArgs.Message.Text}'");
}
else
{
System.Diagnostics.Debug.WriteLine(
$"Message from user '{messageEventArgs.Message.SenderScreenName}' successfully sent to the bot - message ID is '{messageId}'");
MessageIdAndTimestamp messageIdAndTimestamp = new MessageIdAndTimestamp(messageId);
TwitterUserIdentifier twitterUserIdentifier = new TwitterUserIdentifier()
{
TwitterUserId = messageEventArgs.Message.SenderId,
ScreenName = messageEventArgs.Message.SenderScreenName
};
// Store the Twitter user details so that we know who to reply to
_messageAndUserIdCache.AddTwitterUserWaitingForReply(messageIdAndTimestamp, twitterUserIdentifier);
_directLineManager.StartPolling();
}
// Check for pending activities
foreach (ActivityForTwitterUserBundle pendingMessage
in _messageAndUserIdCache.GetPendingRepliesToTwitterUsers())
{
ReplyInTwitter(
pendingMessage.ActivityForTwitterUser,
pendingMessage.TwitterUserIdentifier);
}
}
