from __future__ import absolute_import
from .base import Output

try:
 import espeak.core
except:
 raise RuntimeError("Cannot find espeak.core. Please install python-espeak")

class ESpeak(Output):
 """Speech output supporting ESpeak on Linux
    Note this requires python-espeak to be installed
    This can be done on Debian distros by using apt-get install python-espeak
    Or through this tarball: https://launchpad.net/python-espeak
 """
 name = "Linux ESpeak"

 def is_active(self):
  try:
   import espeak.core
  except:
   return False
  return True

 def speak(self, text, interrupt = 0):
  if interrupt:
   self.silence()
  espeak.core.synth(text)
 def silence(self):
  espeak.core.cancel()

output_class = ESpeak