import os
from itertools import groupby
from operator import itemgetter
from functools import wraps

from flask import request, session

from app import rpc


def split_group(dict_list, key):
    dict_list.sort(key=itemgetter(key))
    tmps = groupby(dict_list, itemgetter(key))
    result = []
    for key, group in tmps:
        result.append({key: list(group)})
    return result


basedir = os.getcwd()


def login_required(f):
    """
    登陆保护，验证用户是否登陆
    """

    @wraps(f)
    def wrapper(*args, **kwargs):
        token = request.headers.get("Authorization", default=None)
        if not token:
            return '请登陆'
        user_id = rpc.admin.identify(token)
        if not user_id:
            return '请登陆'
        session['user_id'] = user_id
        return f(*args, **kwargs)
    return wrapper