"""Shared test bootstrap.

Loads the repo-root ``.env`` so modules that import ``common.config``
(which is a process-wide singleton) can resolve ``APP_CONFIG_SECRET_KEY``
at collection time. Without it, any test importing ``backend.api.*`` fails
with a RuntimeError about ENC(...) ciphertext.
"""

from __future__ import annotations

import os
from pathlib import Path

_REPO_ROOT = Path(__file__).resolve().parent.parent.parent


def _bootstrap() -> None:
    if os.environ.get("APP_CONFIG_SECRET_KEY"):
        return
    env_file = _REPO_ROOT / ".env"
    if not env_file.is_file():
        return
    try:
        from dotenv import dotenv_values
    except ImportError:
        return
    value = dotenv_values(env_file).get("APP_CONFIG_SECRET_KEY")
    if value:
        os.environ["APP_CONFIG_SECRET_KEY"] = value


_bootstrap()