from pydantic_settings import BaseSettings, SettingsConfigDict
from functools import lru_cache


class Settings(BaseSettings):
    ENV: str = "development"
    DEBUG: bool = True

    SECRET_KEY: str = "dev-secret-key-change-in-production"
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
    ALGORITHM: str = "HS256"

    DATABASE_URL: str = "sqlite+aiosqlite:///./sqlite3.db"

    ADMIN_USERNAME: str = "admin"
    ADMIN_PASSWORD: str = "123456"

    # CORS: production comma-separated origins (e.g. "https://sql.example.com,https://sql2.example.com")
    CORS_ORIGINS: str = ""

    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8")


@lru_cache()
def get_settings() -> Settings:
    return Settings()