import os
from dataclasses import dataclass
from dotenv import load_dotenv


@dataclass
class AppConfig:
    DEBUG: bool
    SECRET_KEY: str
    VAULT_PATH: str | None


def load_config(vault_override: str | None = None) -> AppConfig:
    # Load .env if present
    load_dotenv()

    debug = os.getenv("FLASK_DEBUG", "0") in ("1", "true", "True")
    secret = os.getenv("SECRET_KEY", "dev-secret-change-me")
    vault_env = os.getenv("KB_VAULT_PATH")

    vault = vault_override or vault_env
    return AppConfig(DEBUG=debug, SECRET_KEY=secret, VAULT_PATH=vault)