"""Environment-driven settings for the API service."""
from functools import lru_cache
from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8", extra="ignore")
    hf_repo_id: str
    hf_token: str
    embedding_base_url: str
    embedding_api_key: str
    data_dir: str = "./data"


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