from pathlib import Path

from pydantic_settings import BaseSettings, SettingsConfigDict


ROOT = Path(__file__).resolve().parents[2]
KNOWLEDGE_DIR = ROOT / "knowledge"


class Settings(BaseSettings):
    model_config = SettingsConfigDict(env_file=".env", extra="ignore")

    app_name: str = "鲜境方案引擎原型"
    knowledge_dir: Path = KNOWLEDGE_DIR
    retrieval_backend: str = "mock"  # mock | ragflow
    ragflow_base_url: str = "http://127.0.0.1:9380"
    ragflow_api_key: str = ""
    ragflow_dataset_ids: str = ""
    llm_mode: str = "template"  # template（无 Key 可跑）| openai_compatible（预留）


settings = Settings()