from __future__ import annotations

from pathlib import Path
from dotenv import load_dotenv


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


def load_env(service: str | None = None) -> None:
    root_env = REPO_ROOT / ".env"
    if root_env.exists():
        load_dotenv(root_env)

    if service:
        service_env = REPO_ROOT / service / ".env"
        if service_env.exists():
            # Service-specific values should override repo defaults.
            load_dotenv(service_env, override=True)