public async Task ContinueTopic()

in 002-IntroToAzureAI/Coach/Solutions/Challenge-2.2-Building-Bots/Code/FinishedPictureBot-Part4/PictureBot/PictureBot/Topics/RootTopic.cs [64:145]
71 lines of code
14 McCabe index (conditional complexity)

        public async Task<bool> ContinueTopic(ITurnContext context)
        {
            var conversation = ConversationState<ConversationData>.Get(context);
            var recognizedIntents = context.Services.Get<IRecognizedIntents>();

            switch (context.Activity.Type)
            {
                case ActivityTypes.Message:
                    switch (recognizedIntents.TopIntent?.Name)
                    {
                        case "search":
                            // switch to search topic
                            conversation.ActiveTopic = new SearchTopic();
                            return await conversation.ActiveTopic.StartTopic(context);
                        case "share":
                            // show that you're sharing
                            await RootResponses.ReplyWithShareConfirmation(context);
                            return true;
                        case "order":
                            // show that you're ordering
                            await RootResponses.ReplyWithOrderConfirmation(context);
                            return true;
                        case "help":
                            // show help
                            await RootResponses.ReplyWithHelp(context);
                            return true;
                        default:
                            // adding app logic when Regex doesn't find an intent - consult LUIS
                            var result = context.Services.Get<RecognizerResult>(LuisRecognizerMiddleware.LuisRecognizerResultKey);
                            var topIntent = result?.GetTopScoringIntent();

                            switch ((topIntent != null) ? topIntent.Value.intent : null)
                            {
                                case null:
                                    // Add app logic when there is no result.
                                    await RootResponses.ReplyWithConfused(context);
                                    break;
                                case "None":
                                    await RootResponses.ReplyWithConfused(context);
                                    await RootResponses.ReplyWithLuisScore(context, topIntent.Value.intent, topIntent.Value.score);
                                    break;
                                case "Greeting":
                                    await RootResponses.ReplyWithGreeting(context);
                                    await RootResponses.ReplyWithHelp(context);
                                    await RootResponses.ReplyWithLuisScore(context, topIntent.Value.intent, topIntent.Value.score);
                                    break;
                                case "OrderPic":
                                    await RootResponses.ReplyWithOrderConfirmation(context);
                                    await RootResponses.ReplyWithLuisScore(context, topIntent.Value.intent, topIntent.Value.score);
                                    break;
                                case "SharePic":
                                    await RootResponses.ReplyWithShareConfirmation(context);
                                    await RootResponses.ReplyWithLuisScore(context, topIntent.Value.intent, topIntent.Value.score);
                                    break;
                                case "SearchPics":
                                    // Check if LUIS has identified the search term that we should look for.  
                                    var entity = result?.Entities;
                                    var obj = JObject.Parse(JsonConvert.SerializeObject(entity)).SelectToken("facet");
                                    // if no entities are picked up on by LUIS, go through SearchTopic
                                    if (obj == null)
                                    {
                                        conversation.ActiveTopic = new SearchTopic();
                                        await RootResponses.ReplyWithLuisScore(context, topIntent.Value.intent, topIntent.Value.score);
                                    }
                                    // if entities are picked up by LUIS, skip SearchTopic and process the search
                                    else
                                    {
                                        facet = obj.ToString().Replace("\"", "").Trim(']', '[', ' ');
                                        await ProceedWithSearchAsync(context, facet);
                                        await RootResponses.ReplyWithLuisScore(context, topIntent.Value.intent, topIntent.Value.score);
                                        break;
                                    }
                                    return await conversation.ActiveTopic.StartTopic(context);
                                default:
                                    await RootResponses.ReplyWithConfused(context);
                                    break;
                            }
                            return true;
                    }
            }
            return true;
        }