settings.py

from dataclasses import dataclass
from environs import Env
import os


@dataclass
class Log:
    log_level_file: str
    log_level_console: str
    log_dir_path: str


@dataclass
class DB:
    host: str
    name: str
    user: str
    password: str
    port: int = 5432

    @property
    def url(self) -> str:
        return f"postgresql+asyncpg://{self.user}:{self.password}@{self.host}:{self.port}/{self.name}"


@dataclass
class Bot:
    token: str
    chat_id: str


@dataclass
class Settings:
    mode: str
    db: DB
    log: Log
    bot: Bot


def load_settings() -> Settings:
    # os.environ.clear()
    env = Env()
    env.read_env()
    return Settings(
        mode=env.str("MODE"),
        log=Log(
            log_dir_path=env.str("LOG_DIR_PATH"),
            log_level_file=env.str("LOG_LEVEL_FILE"),
            log_level_console=env.str("LOG_LEVEL_CONSOLE"),
        ),
        db=DB(
            host=env.str("POSTGRES_HOST"),
            name=env.str("POSTGRES_DB"),
            user=env.str("POSTGRES_USER"),
            password=env.str("POSTGRES_PASSWORD"),
            port=env.int("POSTGRES_PORT"),
        ),
        bot=Bot(
            token=env.str("TG_BOT_TOKEN"),
            chat_id=env.str("TG_CHAT_ID"),
        ),
    )


settings = load_settings()
print(settings)