text: # Copyright 2017 Mycroft AI Inc.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  #
  import requests
  from mycroft.tts import TTS, TTSValidator
  from .remote_tts import RemoteTTS
  
  
  class FATTS(RemoteTTS):
      PARAMS = {
          'voice[name]': 'cmu-slt-hsmm',
          'input[type]': 'TEXT',
          'input[locale]': 'en_US',
          'input[content]': 'Hello World',
          'output[format]': 'WAVE_FILE',
          'output[type]': 'AUDIO'
      }
  
      def __init__(self, lang, config):
          super(FATTS, self).__init__(lang, config, '/say',
                                      FATTSValidator(self))
  
      def build_request_params(self, sentence):
          params = self.PARAMS.copy()
          params['voice[name]'] = self.voice
          params['input[locale]'] = self.lang
          params['input[content]'] = sentence.encode('utf-8')
          return params
  
  
  class FATTSValidator(TTSValidator):
      def __init__(self, tts):
          super(FATTSValidator, self).__init__(tts)
  
      def validate_lang(self):
          # TODO
          pass
  
      def validate_connection(self):
          try:
              resp = requests.get(self.tts.url + "/info/version", verify=False)
              content = resp.json()
              if content.get('product', '').find('FA-TTS') < 0:
                  raise Exception('Invalid FA-TTS server.')
          except Exception:
              raise Exception(
                  'FA-TTS server could not be verified. Check your connection '
                  'to the server: ' + self.tts.url)
  
      def get_tts_class(self):
          return FATTS
  