text: # VXT
  # Developed by Christian Visintin
  #
  # MIT License
  # Copyright (c) 2021 Christian Visintin
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  # The above copyright notice and this permission notice shall be included in all
  # copies or substantial portions of the Software.
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  #
  
  from ..audio.audio import Audio
  from .engine import Speech2TextEngine
  from io import BytesIO
  import speech_recognition as sr
  from typing import Optional
  
  
  class GoogleSpeech2TextEngine(Speech2TextEngine):
      """A speech2text engine which uses the Google API"""
  
      def __init__(self, api_key: Optional[str]) -> None:
          super().__init__()
          self.__engine = sr.Recognizer()
          self.__api_key = api_key
  
      def get_speech(self, audio: Audio, language: str) -> Optional[str]:
          try:
              audio_data = BytesIO()
              audio.audio.export(audio_data, "wav")
              sr_audio = sr.AudioFile(audio_data)
              with sr_audio as source:
                  audio_source = self.__engine.record(source)
                  return self.__engine.recognize_google(
                      audio_source, self.__api_key, language, show_all=False
                  )
          except Exception:
              return None
  