private async Task StartSpeechTranslation()

in src/CognitiveKioskUWP/MainPage.xaml.cs [352:440]
57 lines of code
6 McCabe index (conditional complexity)

        private async Task StartSpeechTranslation()
        {
            try
            {
                if (isTranslationListening || string.IsNullOrEmpty(settings.SpeechKey))
                    return;

                isTranslationListening = true;
                // Creates an instance of a speech factory with specified subscription key and service region.
                // Replace with your own subscription key and service region (e.g., "westus").
                var config = SpeechTranslationConfig.FromSubscription(settings.SpeechKey, settings.SpeechRegion);
                config.SpeechRecognitionLanguage = "en-US";

                translationStopRecognition = new TaskCompletionSource<int>();

                Random rand = new Random();
                string language = textLanguges.ElementAt(rand.Next(textLanguges.Keys.Count())).Key;
                
                config.AddTargetLanguage(language);
                using (var recognizer = new TranslationRecognizer(config))
                {
                    // Subscribes to events.
                    recognizer.Recognizing += (s, e) =>
                    {
                        try
                        {
                            //Debug.WriteLine($"Message received {e.Result.Text}");
                            string languageLong = textLanguges[e.Result.Translations.First().Key];
                            UpdateTranslationUI($"English: {e.Result.Text}", $"{languageLong}: {e.Result.Translations.First().Value}");

                        }
                        catch (Exception)
                        {
                            // let it go
                        }
                    };

                    recognizer.Recognized += (s, e) =>
                    {
                        //Debug.WriteLine($"Message received {e.Result.Text}");
                        if (e.Result.Translations.Count() > 0)
                        {
                            string languageLong = textLanguges[e.Result.Translations.FirstOrDefault().Key];
                            UpdateTranslationFinalUI($"{e.Result.Text}", $"{e.Result.Translations.First().Value}");
                        }
                    };

                    recognizer.Canceled += (s, e) =>
                    {
                        //NotifyUser($"An error occurred. Please step in front of camera to reactivate.");
                        isTranslationListening = false;
                        translationStopRecognition.TrySetResult(0);
                    };

                    recognizer.SessionStopped += (s, e) =>
                    {
                        //NotifyUser($"\n    Session event. Event: {e.EventType.ToString()}.");
                        // Stops recognition when session stop is detected.

                        //NotifyUser($"\nStop recognition.");
                        isTranslationListening = false;
                        translationStopRecognition.TrySetResult(0);
                    };

                    // Starts continuous recognition. Uses StopContinuousRecognitionAsync() to stop recognition.
                    await recognizer.StartContinuousRecognitionAsync().ConfigureAwait(false);

                    UpdateTranslationUI($"Warming Up Translation", "");
                    await Task.Delay(3500);
                    UpdateTranslationUI($"Say Hi!", "");

                    // Waits for completion.
                    // Use Task.WaitAny to keep the task rooted.
                    Task.WaitAny(new[] { translationStopRecognition.Task });
                    //NotifyUser($"Stopped listenint");

                    isTranslationListening = false;

                    // Stops recognition.
                    await recognizer.StopContinuousRecognitionAsync().ConfigureAwait(false);
                }
            }
            catch (Exception ex)
            {
                // Exception caught let it go!
            }


        }