import platform
import accessible_output2
from base import Output, OutputError

class Auto(Output):

 def __init__(self):
  if platform.system() == "Darwin":
   import voiceover
   self.outputs = [voiceover.VoiceOver()]
  elif platform.system() == "Linux":
   import speechDispatcher
   self.outputs = [speechDispatcher.SpeechDispatcher()]
  elif platform.system() == "Windows":
   output_classes = accessible_output2.get_output_classes()
   self.outputs = []
   for output in output_classes:
    try:
     self.outputs.append(output())
    except OutputError:
     pass

 def get_first_available_output(self):
  for output in self.outputs:
   if output.is_active():
    return output
  return None

 def speak(self, *args, **kwargs):
  output = self.get_first_available_output()
  if output:
   output.speak(*args, **kwargs)

 def braille(self, *args, **kwargs):
  output = self.get_first_available_output()
  if output:
   output.braille(*args, **kwargs)

 def output(self, *args, **kwargs):
  output = self.get_first_available_output()
  if output:
   output.speak(*args, **kwargs)