from __future__ import annotations

import os
from functools import lru_cache
from pathlib import Path


def _split_csv(value: str) -> list[str]:
    return [item.strip() for item in value.split(",") if item.strip()]


class Settings:
    def __init__(self) -> None:
        self.pb_url = os.getenv("PB_URL", "http://127.0.0.1:8090").rstrip("/")
        self.pb_admin_email = os.getenv("PB_ADMIN_EMAIL", "admin@nomadcna.local")
        self.pb_admin_password = os.getenv("PB_ADMIN_PASSWORD", "NomadCNA123456")
        self.cookie_name = os.getenv("API_COOKIE_NAME", "pb_session")
        self.frontend_origins = _split_csv(
            os.getenv(
                "FRONTEND_ORIGINS",
                "http://localhost:3001,http://127.0.0.1:3001",
            )
        )
        self.upload_dir = Path(os.getenv("UPLOAD_DIR", "backend/uploads"))
        self.dev_auto_pay = os.getenv("DEV_AUTO_PAY", "true").lower() == "true"


@lru_cache(maxsize=1)
def get_settings() -> Settings:
    return Settings()