import os, subprocess
from google.cloud import texttospeech

TTS_KEY_FILE = 'calendar-text-to-speech-your-key-file.json'
CREDENTIALS_SUBFOLDER = '.credentials'

home_dir = os.path.expanduser('~')
credential_dir = os.path.join(home_dir, CREDENTIALS_SUBFOLDER)

tts_credentials = os.path.join(credential_dir, TTS_KEY_FILE)
# credentials for tts
os.environ['GOOGLE_APPLICATION_CREDENTIALS']=tts_credentials


def save_phrase(phrase, audioFile, tempo=0.8):
    # Optional parameter for tempo - slow it down if lower than 1
    synthesis_input = texttospeech.SynthesisInput(text=phrase)

    # Perform the text-to-speech request on the text input with the selected
    # voice parameters and audio file type
    response = client.synthesize_speech(input=synthesis_input, voice=voice, audio_config=audio_config)

    # Write the response to the mp3 file.
    with open(audioFile, "wb") as out:
        out.write(response.audio_content)


def setup_tts(maleOrFemale='male'):
    # Instantiates a client
    global client, voice, audio_config

    client = texttospeech.TextToSpeechClient()

    # Build the voice request, select the language code ("en-US") and ssml
    # https://cloud.google.com/text-to-speech/docs/voices (Test all available voices)

    if (maleOrFemale=='male'):
        voice = texttospeech.VoiceSelectionParams(
            language_code="en-US",
            name="en-US-Wavenet-D",
            ssml_gender=texttospeech.SsmlVoiceGender.MALE
        )
    else:
        voice = texttospeech.VoiceSelectionParams(
            language_code="en-US",
            name="en-US-Wavenet-F",
            ssml_gender=texttospeech.SsmlVoiceGender.FEMALE
        )

    # Select the type of audio file you want returned
    audio_config = texttospeech.AudioConfig(audio_encoding=texttospeech.AudioEncoding.MP3)


def main():
    setup_tts()

    save_phrase("Hey Dad. It's time to remind your local care people to give you your pre-breakfast pill", 'PRE_BREAKFAST_PILL.MP3')
    save_phrase("Hey Dad. It's time to remind your local care people to give you your after breakfast pills", 'POST_BREAKFAST_PILLS.MP3')
    save_phrase("Hey Dad. It's time to remind your local care people to give you your bedtime pills", 'BEDTIME_PILLS.MP3')

    exit(0)

if __name__ == '__main__':
    main()