from os import getenv

from dotenv import load_dotenv

from TTS.GTTS import GTTS
from TTS.TikTok import TikTok

CHOICE_DIR = {
    'tiktok': TikTok,
    'gtts': GTTS
}

class TTS:
    def __new__(cls):
        load_dotenv()
        CHOICE = getenv('TTsChoice').casefold()
        valid_keys = [key.lower() for key in CHOICE_DIR.keys()]
        if CHOICE not in valid_keys:
            raise ValueError(f'{CHOICE} is not valid. Please use one of these {valid_keys} options')
        return CHOICE_DIR.get(CHOICE)()