"""Конфигурация приложения и загрузка окружения."""

from __future__ import annotations

from functools import lru_cache
from pathlib import Path
from typing import List

from pydantic_settings import BaseSettings, SettingsConfigDict


BASE_DIR = Path(__file__).resolve().parents[2]


class Settings(BaseSettings):
    """Глобальные настройки сервиса."""

    model_config = SettingsConfigDict(env_file=BASE_DIR / ".env", env_prefix="ALABUGA_", extra="ignore")

    project_name: str = "Alabuga Gamification API"
    environment: str = "local"
    secret_key: str = "super-secret-key-change-me"
    jwt_algorithm: str = "HS256"
    access_token_expire_minutes: int = 60 * 12

    backend_cors_origins: List[str] = ["http://localhost:3000", "http://frontend:3000"]

    sqlite_path: Path = Path("/data/app.db")

    @property
    def database_url(self) -> str:
        """Путь к базе данных SQLite."""

        return f"sqlite:///{self.sqlite_path}"


@lru_cache()
def get_settings() -> Settings:
    """Кэшируем создание настроек, чтобы не читать файл каждый раз."""

    settings = Settings()

    if not settings.sqlite_path.is_absolute():
        settings.sqlite_path = (BASE_DIR / settings.sqlite_path).resolve()

    settings.sqlite_path.parent.mkdir(parents=True, exist_ok=True)
    return settings


settings = get_settings()