from functools import lru_cache
from pydantic_settings import BaseSettings, SettingsConfigDict

class Settings(BaseSettings):
    app_env: str = "development"
    secret_key: str = "dev-secret-change-me"
    database_url: str = "sqlite:///./secureflow.db"
    cors_origins: str = "http://localhost:5173"
    access_token_expire_minutes: int = 480
    storage_backend: str = "local"
    local_storage_path: str = "./uploads"
    openai_base_url: str = "https://api.openai.com/v1"
    openai_api_key: str = ""
    openai_model: str = "gpt-4o-mini"
    model_config = SettingsConfigDict(env_file="../.env", env_file_encoding="utf-8", extra="ignore")

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