"""Konfiguration. Alle Werte kommen aus der Umgebung (im Betrieb aus .env)."""
import os
from pathlib import Path


def _s(name: str, default: str = "") -> str:
    return os.environ.get(name, default).strip()


def _i(name: str, default: int) -> int:
    try:
        return int(_s(name) or default)
    except ValueError:
        return default


def _b(name: str, default: bool) -> bool:
    v = _s(name).lower()
    if not v:
        return default
    return v in ("1", "true", "yes", "on")


DATA_DIR = Path(_s("DATA_DIR", "./data"))
IMAGE_DIR = DATA_DIR / "images"
DB_PATH = DATA_DIR / "cards.db"

# Leeres Passwort schaltet die Anmeldung ab - nur fuer die lokale Entwicklung.
APP_PASSWORD = _s("APP_PASSWORD")
SECRET_KEY = _s("SECRET_KEY", "dev-only-insecure-secret")
SESSION_DAYS = _i("SESSION_DAYS", 30)

ANTHROPIC_API_KEY = _s("ANTHROPIC_API_KEY")
ANTHROPIC_MODEL = _s("ANTHROPIC_MODEL", "claude-opus-5")
EXTRACT_CONCURRENCY = _i("EXTRACT_CONCURRENCY", 5)

SMTP_HOST = _s("SMTP_HOST")
SMTP_PORT = _i("SMTP_PORT", 587)
SMTP_USER = _s("SMTP_USER")
SMTP_PASSWORD = _s("SMTP_PASSWORD")
SMTP_FROM = _s("SMTP_FROM") or SMTP_USER
SMTP_STARTTLS = _b("SMTP_STARTTLS", True)
REMINDER_TO = _s("REMINDER_TO")

REVERSE_GEOCODE = _b("REVERSE_GEOCODE", True)
NOMINATIM_URL = _s("NOMINATIM_URL", "https://nominatim.openstreetmap.org/reverse")
USER_AGENT = _s("USER_AGENT", "business-card-scanner/1.0 (self-hosted)")

PUBLIC_BASE_URL = _s("PUBLIC_BASE_URL").rstrip("/")


def ensure_dirs() -> None:
    IMAGE_DIR.mkdir(parents=True, exist_ok=True)