/// <summary>
/// Helper method for initalizing the voice service, bridge, and lights. Returns if successful.
/// </summary>
private async Task <bool> InitializeAsync(AppServiceTriggerDetails triggerDetails)
{
_voiceServiceConnection =
VoiceCommandServiceConnection.FromAppServiceTriggerDetails(triggerDetails);
_voiceServiceConnection.VoiceCommandCompleted += (s, e) => _deferral.Complete();
_voiceCommand = await _voiceServiceConnection.GetVoiceCommandAsync();
_colors = HsbColor.CreateAll().ToDictionary(x => x.Name);
var localStorage = ApplicationData.Current.LocalSettings.Values;
_bridge = new Bridge(
localStorage["bridgeIp"].ToString(), localStorage["userId"].ToString());
try
{
_lights = await _bridge.GetLightsAsync();
}
catch (Exception)
{
var response = CreateCortanaResponse("Sorry, I couldn't connect to your bridge.");
await _voiceServiceConnection.ReportFailureAsync(response);
return(false);
}
if (!_lights.Any())
{
var response = CreateCortanaResponse("Sorry, I couldn't find any lights.");
await _voiceServiceConnection.ReportFailureAsync(response);
return(false);
}
return(true);
}
/// <summary>
/// Prepares Cortana for background use.
/// </summary>
private async Task InitializeCortanaAsync()
{
// You can't write to application files by default, so we need to create a
// secondary VCD file to dynamically write Cortana commands to.
StorageFile dynamicFile = await ApplicationData.Current.RoamingFolder.CreateFileAsync(
"VoiceCommands.xml", CreationCollisionOption.ReplaceExisting);
// Load the base file and parse the PhraseList we want from it.
StorageFile baseFile = await StorageFile.GetFileFromApplicationUriAsync(
new Uri("ms-appx:///VoiceCommands.xml"));
XDocument xml = XDocument.Load(baseFile.Path);
XElement state = xml.Descendants().First(x => x.Name.LocalName == "PhraseList" &&
null != x.Attribute("Label") && x.Attribute("Label").Value == "state");
// A ColorMapping is a RGB and HSV compliant representation a system color.
// ColorMapping.CreateAll() returns a ColorMapping for all system colors available to UWP apps.
// For each ColorMapping, add it to the list of phrases Cortana knows.
foreach (HsbColor color in HsbColor.CreateAll())
{
state.Add(new XElement("Item", color.Name));
}
// Add the light names.
XElement names = xml.Descendants().First(x => x.Name.LocalName == "PhraseList" &&
null != x.Attribute("Label") && x.Attribute("Label").Value == "name");
foreach (Light light in _lights)
{
names.Add(new XElement("Item", light.Name));
}
// Save the file, and then load so Cortana recognizes it.
using (Stream stream = await dynamicFile.OpenStreamForWriteAsync())
{
xml.Save(stream);
}
try
{
await VoiceCommandDefinitionManager.InstallCommandDefinitionsFromStorageFileAsync(dynamicFile);
}
catch (FileNotFoundException)
{
// Do nothing. This is a workaround for a spurious FileNotFoundException that
// is thrown even though dynamicFile exists on disk.
}
}