import os
from dataclasses import dataclass, field
from pathlib import Path

from dotenv import load_dotenv

load_dotenv(Path(__file__).resolve().parent.parent / ".env")


@dataclass(frozen=True)
class Settings:
    # LLM 配置
    llm_api_key: str = field(
        default_factory=lambda: os.environ["LLM_API_KEY"],
        repr=False,
    )
    llm_model: str = field(default_factory=lambda: os.environ["LLM_MODEL"])
    llm_base_url: str | None = field(
        default_factory=lambda: os.getenv("LLM_BASE_URL") or None
    )
    llm_timeout: float = 60.0
    llm_max_retries: int = 2


settings = Settings()