from base import Output, OutputError
import atexit

class SpeechDispatcher(Output):
 """Supports speech dispatcher on Linux.
 Note that it will take the configuration from the speech dispatcher, the user will need configure voice, language, punctuation and rate before use this module.
 """
 name = 'SpeechDispatcher'

 def __init__(self, *args, **kwargs):
  super(SpeechDispatcher, self).__init__(*args, **kwargs)
  try:
   import speechd
   self.spd = speechd.SSIPClient("TWBlue")
  except ImportError:
   raise OutputError
  atexit.register(self.on_exit_event)

 def speak(self, text, interupt=False):
  if interupt == True:
   self.spd.cancel()
  self.spd.speak(text)

 def is_active(self):
  return True

 def on_exit_event(self):
  self.spd.close()
  del self.spd