"""Settings from .env (gitignored) and process environment. Never log secret values."""
import os
from . import ROOT


def _load_env() -> dict[str, str]:
    out: dict[str, str] = {}
    p = ROOT / ".env"
    if p.exists():
        for line in p.read_text().splitlines():
            line = line.split("#", 1)[0].strip()
            if "=" in line:
                k, v = line.split("=", 1)
                out[k.strip()] = v.strip().strip("'\"")
    return out


_ENV = _load_env()


def get(key: str, default: str | None = None) -> str | None:
    return os.environ.get(key) or _ENV.get(key) or default


DEFAULT_CX = get("DEFAULT_CX", "AI1")
CACHE_DIR = ROOT / "data" / "cache"