from functools import lru_cache

from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    secret_key: str
    algorithm: str = "HS256"
    access_token_expire_minutes: int = 60 * 24
    database_url: str = "sqlite:///./kalorientracker.db"
    llm_api_url: str = "https://ki-toolbox.scc.kit.edu/api/v1"
    llm_api_key: str = ""
    llm_model: str = "kit.mistral-small-4-119b-a8b"

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


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