"""LightRAG 集成占位。阶段 1 会在这里封装真正的查询与索引。"""

from app.config import settings


class LightRAGService:
    def __init__(self) -> None:
        self.collection = settings.lightrag_collection

    async def queue_index(self, document_id: str, raw_text: str) -> None:
        """预留方法：后续调用 LightRAG.update_index。"""
        return None

    async def query(self, query_text: str, user_id: str) -> str:
        """预留方法：后续调用 LightRAG.query，当前返回占位回答。"""
        return f"[mock] {query_text}"


lightrag_service = LightRAGService()