import os
from pathlib import Path

from pydantic import BaseSettings


class Config(BaseSettings):
    hf_hub_token: str = "missing"
    hf_agent: str = "https://api-inference.huggingface.co/models/bigcode/starcoder"
    db_file_name: Path = Path("sqlite-data.db")
    sampling_rate: int = 16_000  # audio transcription
    max_yt_length: int = 1800  # in minutes

    class Config:
        # load .env file by default, with provisio to use other .env files if set
        env_file = os.getenv('ENV_FILE', '.env')


_config = None


def get_config() -> Config:
    global _config
    if _config is None:
        _config = Config()
    return _config