private async Task <DialogTurnResult> ArtistStepAsync(WaterfallStepContext stepContext, CancellationToken cancellationToken)
{
var songRequest = (SongRequest)stepContext.Options;
if (songRequest.Intent == UserCommand.Intent.PlayByArtist || songRequest.Intent == UserCommand.Intent.PlayByTitleArtist)
{
var(bestMatchArtist, _) = _songChooser.GetClosestKnownArtist(songRequest.Artist, _songChooser.ThresholdSimilarityRatio);
Console.WriteLine(songRequest.Artist + " => " + bestMatchArtist);
if (bestMatchArtist is null)
{
(bestMatchArtist, _) = _songChooser.GetClosestKnownArtist(songRequest.Artist);
Console.WriteLine(songRequest.Artist + " => " + bestMatchArtist);
var(messageText, spokenMessageText) = SentenceGenerator.AskArtistName(bestMatchArtist);
var promptMessage = MessageFactory.Text(messageText, spokenMessageText, InputHints.ExpectingInput);
return(await stepContext.PromptAsync(nameof(TextPrompt), new PromptOptions { Prompt = promptMessage }, cancellationToken));
}
}
return(await stepContext.NextAsync(songRequest.Artist, cancellationToken));
}
private async Task <DialogTurnResult> ActStepAsync(WaterfallStepContext stepContext, CancellationToken cancellationToken)
{
var userInput = stepContext.Context.Activity.Text;
SongRequest songRequest;
if (!_luisCommandRecognizer.IsConfigured)
{
songRequest = new SongRequest()
{
Artist = _songChooser.GetKnownArtistFromSentence(userInput),
Title = _songChooser.GetKnownSongTitleFromSentence(userInput)
};
// LUIS is not configured, we just run the RequestSongDialog path with an empty SongDetailsInstance.
return(await stepContext.BeginDialogAsync(nameof(RequestSongDialog), songRequest, cancellationToken));
}
if (_luisQuestionRecognizer.IsConfigured)
{
var luisQuestionResult = await _luisQuestionRecognizer.RecognizeAsync <UserQuestion>(stepContext.Context, cancellationToken);
var(intent, score) = luisQuestionResult.TopIntent();
if (!(intent is UserQuestion.Intent.None))
{
var feedbackScoreThreshold = 0.8;
Answer answer = new Answer()
{
Text = "",
Speak = ""
};
switch (intent)
{
case UserQuestion.Intent.CurrentSongInformationRequest:
var question = new Question()
{
Text = userInput,
Intent = intent
};
answer = new Answer(question);
// Which song
/*switch (luisQuestionResult.SongDescription)
* {
* case "current song":
* break;
* case "next song":
* case "last song":
* default:
* break;
* }*/
// Which information requested
var song = _musicPlayer.GetPlayerStatus().GetCurrentSong();
(answer.Text, answer.Speak) = GenerateResponseToInformationRequest(luisQuestionResult.SongInformation, song);
break;
case UserQuestion.Intent.NegativeFeedback:
// check certainty percentage to avoid false positives
if (score > feedbackScoreThreshold)
{
(answer.Text, answer.Speak) = ("I don't like it either.", "I don't like it either.");
}
break;
case UserQuestion.Intent.PositiveFeedback:
// check certainty percentage to avoid false positives
if (score > feedbackScoreThreshold)
{
(answer.Text, answer.Speak) = ("It's nice indeed.", "It's nice indeed.");
}
break;
default:
break;
}
return(await stepContext.NextAsync(answer, cancellationToken));
}
}
// Call LUIS and gather any potential song details. (Note the TurnContext has the response to the prompt.)
var luisCommandResult = await _luisCommandRecognizer.RecognizeAsync <UserCommand>(stepContext.Context, cancellationToken);
songRequest = new SongRequest()
{
Intent = luisCommandResult.TopIntent().intent
};
var inputHint = InputHints.IgnoringInput;
string messageText = "";
string spokenMessageText = "";
Song songToBePlayed = null;
var intentScoreThreshold = 0.5;
switch (luisCommandResult.TopIntent().intent)
{
case UserCommand.Intent.PlayByTitleArtist:
// Initialize SongRequest with any entities we may have found in the response.
songRequest.Title = luisCommandResult.SongTitle;
songRequest.Artist = luisCommandResult.SongArtist;
songToBePlayed = SelectSongToBePlayedByTitleArtist(songRequest, userInput);
if (songToBePlayed is null)
{
// Reset song request if both known, but not a pair
if (!(songRequest.Title is null || songRequest.Artist is null))
{
if (songRequest.Title.Length > songRequest.Artist.Length)
{
songRequest.Artist = null;
}
else
{
songRequest.Title = null;
}
}
// Run the RequestSongDialog giving it whatever details we have from the LUIS call, it will fill out the remainder.
return(await stepContext.BeginDialogAsync(nameof(RequestSongDialog), songRequest, cancellationToken));
}
break;
case UserCommand.Intent.PlayByArtist:
// Initialize SongRequest with any entities we may have found in the response.
songRequest.Artist = luisCommandResult.SongArtist;
if (songRequest.Artist is null)
{
songRequest.Artist = _songChooser.GetKnownArtistFromSentence(userInput);
}
var(bestMatchArtist, similarityRatioArtist) = _songChooser.GetClosestKnownArtist(luisCommandResult.SongArtist, _songChooser.ThresholdSimilarityRatio);
Console.WriteLine(songRequest.Artist + " => " + bestMatchArtist);
if (bestMatchArtist is null)
{
songRequest.Artist = _songChooser.ExpandSentenceToKnownArtist(userInput);
if (songRequest.Artist is null)
{
// Run the RequestSongDialog giving it whatever details we have from the LUIS call, it will fill out the remainder.
return(await stepContext.BeginDialogAsync(nameof(RequestSongDialog), songRequest, cancellationToken));
}
bestMatchArtist = songRequest.Artist;
}
songRequest.Artist = bestMatchArtist;
songToBePlayed = _songChooser.ChooseRandomSongByArtist(songRequest.Artist);
messageText = "Random song by artist.";
break;
case UserCommand.Intent.PlayByTitle:
// Initialize SongRequest with any entities we may have found in the response.
songRequest.Title = luisCommandResult.SongTitle;
if (songRequest.Title is null)
{
songRequest.Title = _songChooser.GetKnownSongTitleFromSentence(userInput);
}
var(bestMatchTitle, similarityRatioTitle) = _songChooser.GetClosestKnownSongTitle(luisCommandResult.SongTitle, _songChooser.ThresholdSimilarityRatio);
if (bestMatchTitle is null)
{
songRequest.Title = _songChooser.ExpandSentenceToKnownSongTitle(userInput);
if (songRequest.Title is null)
{
// Run the RequestSongDialog giving it whatever details we have from the LUIS call, it will fill out the remainder.
return(await stepContext.BeginDialogAsync(nameof(RequestSongDialog), songRequest, cancellationToken));
}
bestMatchTitle = songRequest.Title;
}
songRequest.Title = bestMatchTitle;
songToBePlayed = _songChooser.GetSongByClosestTitle(songRequest.Title);
break;
case UserCommand.Intent.PlayByGenre:
// Initialize SongRequest with any entities we may have found in the response.
songRequest.Genre = luisCommandResult.SongGenre;
var(bestMatchGenre, similarityRatioGenre) = _songChooser.GetClosestKnownGenre(luisCommandResult.SongGenre, _songChooser.ThresholdSimilarityRatio);
if (bestMatchGenre is null)
{
// Run the RequestSongByGenreDialog giving it whatever details we have from the LUIS call, it will fill out the remainder.
return(await stepContext.BeginDialogAsync(nameof(RequestSongByGenreDialog), songRequest, cancellationToken));
}
songToBePlayed = _songChooser.ChooseRandomSongByGenre(bestMatchGenre);
messageText = "Random song by genre.";
break;
case UserCommand.Intent.PlayRandom:
if (luisCommandResult.TopIntent().score > intentScoreThreshold)
{
songToBePlayed = _songChooser.ChooseRandomSong();
messageText = "Random song.";
}
break;
case UserCommand.Intent.PreviousSong:
if (luisCommandResult.TopIntent().score > intentScoreThreshold)
{
_musicPlayer.PlayPrevious();
messageText = "Previous song.";
}
break;
case UserCommand.Intent.NextSong:
if (luisCommandResult.TopIntent().score > intentScoreThreshold)
{
_musicPlayer.PlayNext();
messageText = "Next song.";
}
break;
case UserCommand.Intent.StartPlaying:
_musicPlayer.Resume();
messageText = "Music resumed.";
break;
case UserCommand.Intent.StopPlaying:
_musicPlayer.Pause();
messageText = "Music paused.";
break;
case UserCommand.Intent.VolumeDown:
if (luisCommandResult.TopIntent().score > intentScoreThreshold)
{
_musicPlayer.VolumeDown();
messageText = "Volume decreased by 10%.";
}
break;
case UserCommand.Intent.VolumeUp:
_musicPlayer.VolumeUp(20);
messageText = "Volume increased by 20%.";
break;
default:
// Catch all for unhandled intents
messageText = $"Sorry, I didn't get that. Please try asking in a different way (intent was {luisCommandResult.TopIntent().intent})";
(_, spokenMessageText) = SentenceGenerator.CommandNotUnderstood();
inputHint = InputHints.ExpectingInput;
break;
}
var message = MessageFactory.Text(messageText, spokenMessageText, inputHint);
await stepContext.Context.SendActivityAsync(message, cancellationToken);
return(await stepContext.NextAsync(songToBePlayed, cancellationToken));
}