// Obtain voices
public static void UpdateVoices(WitConfiguration configuration, Action <bool> onComplete)
{
// Ignore if already updating
if (IsUpdating || IsLoading)
{
onComplete?.Invoke(false);
return;
}
// Begin update
_updating = true;
// Download
Log("Service Download Begin");
WitUnityRequest.RequestTTSVoices(configuration, null, (json, error) =>
{
// Failed
if (!string.IsNullOrEmpty(error))
{
Log($"Service Download Failure\n{error}", true);
OnUpdateComplete(false, onComplete);
return;
}
// Success
Log($"Service Download Success\n{json}");
// Decode if possible
DecodeVoices(json, (success) =>
{
// Decoded successfully, then save
if (success)
{
string backupPath = GetVoiceFilePath();
try
{
File.WriteAllText(backupPath, json);
Log($"Service Save Success\nPath: {backupPath}");
}
catch (Exception e)
{
Log($"Service Save Failed\nPath: {backupPath}\n{e}", true);
}
}
// Complete
OnUpdateComplete(success, onComplete);
});
});
}
/// <summary>
/// Method for cancelling a running load request
/// </summary>
/// <param name="clipData">Clip request data</param>
public bool CancelWebDownload(TTSClipData clipData, string downloadPath)
{
// Ignore if not performing
if (!_webDownloads.ContainsKey(clipData.clipID))
{
return(false);
}
// Get request
WitUnityRequest request = _webDownloads[clipData.clipID];
_webDownloads.Remove(clipData.clipID);
// Destroy immediately
request?.Unload();
// Download cancelled
WebDownloadEvents?.OnDownloadCancel?.Invoke(clipData, downloadPath);
// Success
return(true);
}
/// <summary>
/// Cancel web stream
/// </summary>
/// <param name="clipID">Unique clip id</param>
public bool CancelWebStream(TTSClipData clipData)
{
// Ignore without
if (!_webStreams.ContainsKey(clipData.clipID))
{
return(false);
}
// Get request
WitUnityRequest request = _webStreams[clipData.clipID];
_webStreams.Remove(clipData.clipID);
// Destroy immediately
request?.Unload();
// Call delegate
WebStreamEvents?.OnStreamCancel?.Invoke(clipData);
// Success
return(true);
}
/// <summary>
/// Method for performing a web load request
/// </summary>
/// <param name="clipData">Clip request data</param>
/// <param name="onStreamSetupComplete">Stream setup complete: returns clip and error if applicable</param>
public void RequestStreamFromWeb(TTSClipData clipData)
{
// Stream begin
WebStreamEvents?.OnStreamBegin?.Invoke(clipData);
// Check if valid
string validError = IsRequestValid(clipData, RequestSettings.configuration);
if (!string.IsNullOrEmpty(validError))
{
WebStreamEvents?.OnStreamError?.Invoke(clipData, validError);
return;
}
// Ignore if already performing
if (_webStreams.ContainsKey(clipData.clipID))
{
CancelWebStream(clipData);
}
// Request tts
_webStreams[clipData.clipID] = WitUnityRequest.RequestTTSStream(RequestSettings.configuration,
clipData.textToSpeak, clipData.queryParameters,
(progress) => clipData.loadProgress = progress,
(clip, error) =>
{
_webStreams.Remove(clipData.clipID);
clipData.clip = clip;
if (string.IsNullOrEmpty(error))
{
WebStreamEvents?.OnStreamReady?.Invoke(clipData);
}
else
{
WebStreamEvents?.OnStreamError?.Invoke(clipData, error);
}
});
}
/// <summary>
/// Method for performing a web load request
/// </summary>
/// <param name="clipData">Clip request data</param>
/// <param name="downloadPath">Path to save clip</param>
public void RequestDownloadFromWeb(TTSClipData clipData, string downloadPath)
{
// Begin
WebDownloadEvents?.OnDownloadBegin?.Invoke(clipData, downloadPath);
// Ensure valid
string validError = IsRequestValid(clipData, RequestSettings.configuration);
if (!string.IsNullOrEmpty(validError))
{
WebDownloadEvents?.OnDownloadError?.Invoke(clipData, downloadPath, validError);
return;
}
// Abort if already performing
if (_webDownloads.ContainsKey(clipData.clipID))
{
CancelWebDownload(clipData, downloadPath);
}
// Request tts
_webDownloads[clipData.clipID] = WitUnityRequest.RequestTTSDownload(downloadPath,
RequestSettings.configuration, clipData.textToSpeak, clipData.queryParameters,
(progress) => clipData.loadProgress = progress,
(error) =>
{
_webDownloads.Remove(clipData.clipID);
if (string.IsNullOrEmpty(error))
{
WebDownloadEvents?.OnDownloadSuccess?.Invoke(clipData, downloadPath);
}
else
{
WebDownloadEvents?.OnDownloadError?.Invoke(clipData, downloadPath, error);
}
});
}
// Ensures text can be sent to wit web service public string IsTextValid(string textToSpeak) => WitUnityRequest.IsTextValid(textToSpeak);