# app/utils.py
import uuid
from flask import session

# 初始化用户的会话信息，包括对话历史
def init_session():
    if 'user_id' not in session:
        session['user_id'] = str(uuid.uuid4())  # 生成用户唯一ID
    if 'history' not in session:
        session['history'] = []  # 初始化会话历史
        session['session_info'] = {}
    if 'llm_service' not in session:
        session['llm_service'] = 'zhipu'