public void Enqueue(TTSMessage message)
{
if (null == _parentTTS)
{
throw new InvalidOperationException("No associated Text-To-Speech subsystem for injection");
}
else if (message.AlreadySpoken())
{
throw new InvalidOperationException($"{GetType().Name}: message has already been spoken");
}
_parentTTS.TTSInitialize();
uint messageKey;
message.Voice = _parentTTS.CurrentVoice;
vx_tts_status status = VivoxCoreInstance.vx_tts_speak(_parentTTS.TTSManagerId, message.Voice.Key, message.Text, (vx_tts_destination)message.Destination, out messageKey);
if (TextToSpeech.IsNotTTSError(status))
{
message.Key = messageKey;
message.TTS = _parentTTS;
message.State = TTSMessageState.Enqueued;
message.PropertyChanged += OnMessage_PropertyChanged;
_messages.Add(message);
AfterMessageAdded?.Invoke(this, new ITTSMessageQueueEventArgs(message));
}
else
{
throw new VivoxApiException((int)status);
}
}