public async Task OnTurnAsync(ITurnContext turnContext, NextDelegate next, CancellationToken cancellationToken = default(CancellationToken))
{
Activity activity = turnContext.Activity;
if (activity.Type is ActivityTypes.Message)
{
//Add User Context in the turn context
ConversationReference selfConversation = activity.GetConversationReference();
ChatUserContext userContext = ChatUserContext.FromConversation(selfConversation);
if (activity.ChannelId.ToLower() != _config.AdminChannel ||
!UserRoleCache.UserRoles.ContainsKey(userContext.Id))
{
userContext.Role = ChatUserRole.Consumer;
}
else
{
userContext.Role = UserRoleCache.UserRoles[userContext.Id];
}
selfConversation.User.Role = userContext.Role.ToString();
turnContext.TurnState.Add(typeof(ChatUserContext).FullName, userContext);
//Add Message router in the turn context
ConnectorClient connectorClient = turnContext.TurnState.Get <ConnectorClient>(typeof(IConnectorClient).FullName);
MessageRouter messageRouter = new MessageRouter(connectorClient, activity, _logger);
turnContext.TurnState.Add(typeof(MessageRouter).FullName, messageRouter);
//Ensure that each user only has one conversation active, and notify the other sessions where a conversation replaced it.
IEnumerable <ConversationReference> otherConversations = await _routingDataManager.GetConversationsFromUser(selfConversation.User.Id);
//Remove current conversation
otherConversations = _routingDataManager.RemoveSelfConversation(otherConversations, selfConversation);
//Send a notification to all old conversations
if (otherConversations.Count() > 0)
{
foreach (var otherConversation in otherConversations)
{
await messageRouter.SendErrorMessageAsync(otherConversation, "You were disconnected from this instance.");
}
}
//Store the new conversation
await _routingDataManager.SaveConversationReference(selfConversation);
//Leave this middleware
await next(cancellationToken).ConfigureAwait(false);
}
if (activity.Type is ActivityTypes.EndOfConversation)
{
ConversationReference selfConversation = activity.GetConversationReference();
_logger.LogInformation($"Conversation Ended: {selfConversation.Conversation.Id}");
}
}
