import secrets
import logging
from pydantic_settings import BaseSettings
from pathlib import Path

log = logging.getLogger(__name__)


class Settings(BaseSettings):
    database_url: str = "sqlite+aiosqlite:////data/medialore.db"
    media_root: str = "/media"
    thumbnail_dir: str = "/data/thumbnails"

    secret_key: str = ""
    admin_username: str = "admin"
    admin_password: str = ""
    access_token_expire_days: int = 30

    model_config = {"env_file": ".env"}


settings = Settings()

if not settings.secret_key:
    settings.secret_key = secrets.token_urlsafe(32)
    log.warning(
        "SECRET_KEY not set — generated random key: %s. "
        "All sessions will be invalidated on restart. "
        "Set SECRET_KEY in .env for persistent sessions.",
        settings.secret_key,
    )

THUMBNAIL_DIR = Path(settings.thumbnail_dir)
THUMBNAIL_DIR.mkdir(parents=True, exist_ok=True)