public static string CombineAudioAndTextForSSML(Uri audioStream, string text)
{
StringBuilder sb = new StringBuilder();
const string ssmlPrefix = @"<speak version='1.0' xmlns='http://www.w3.org/2001/10/synthesis' " +
"xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' " +
"xsi:schemaLocation='http://www.w3.org/2001/10/synthesis " +
"http://www.w3.org/TR/speech-synthesis/synthesis.xsd' " +
"xml:lang='en-us'>";
const string ssmlSuffix = "</speak>";
sb.Append(ssmlPrefix);
sb.Append($"<audio src='{audioStream.AbsoluteUri}'/>");
sb.Append(GetInnerSsmlContents(SsmlWrapper.Wrap(text)));
sb.Append(ssmlSuffix);
return(sb.ToString());
}
private static IMessageActivity CreateResponse
(
IDialogContext context,
IMessageActivity message,
string displayText,
string speakText,
MessageType messageType,
string audioToPlay = null,
IList <string> optionsToAdd = null,
string inputHint = InputHints.AcceptingInput
)
{
var activityToSend = context.MakeMessage();
if (displayText != null)
{
activityToSend.Text = displayText;
}
var ssml = (string)null;
if (speakText != null)
{
var escapedSpeakText = speakText.Replace("&", "&").Replace("<", "<").Replace(">", ">").Replace("\"", """).Replace("'", "'");
ssml = SsmlWrapper.Wrap(escapedSpeakText);
if (audioToPlay != null && message.ChannelId != "cortana")
{
var assetPath = "http://" + System.Web.HttpContext.Current.Request.ServerVariables["SERVER_NAME"] + "/Assets/";
var uri = new Uri(assetPath + audioToPlay);
ssml = CombineAudioAndTextForSSML(uri, ssml);
}
}
activityToSend.Speak = ssml;
activityToSend.InputHint = inputHint;
var appEntities =
new AppEntities
{
MessageType = messageType,
TriviaAnswerOptions = optionsToAdd?.Count > 0 ? optionsToAdd : null
};
if (optionsToAdd != null)
{
List <CardAction> cardButtons = new List <CardAction>();
bool numberOptions = optionsToAdd.Count > 2;
for (int i = 0; i < optionsToAdd.Count; i++)
{
var display = numberOptions ? $"{(i + 1).ToString()}: {optionsToAdd[i]}" : optionsToAdd[i];
cardButtons.Add(new CardAction()
{
Value = optionsToAdd[i], Type = "postBack", Title = display
});
}
var plCard = new ThumbnailCard()
{
// Title = "Pick an answer",
Buttons = cardButtons,
};
activityToSend.Attachments.Add(plCard.ToAttachment());
}
var entity = new Entity();
entity.SetAs <AppEntities>(appEntities);
activityToSend.Entities.Add(entity);
return(activityToSend);
}