# -*- coding: utf-8 -*-
from application import app
from flask import request,g,redirect

from common.models.User import ( User )
from common.libs.user.UserService import ( UserService )
from common.libs.UrlManager import ( UrlManager )
from common.libs.LogService import LogService

import  re
@app.before_request
def before_request():
    ignore_urls = app.config['IGNORE_URLS']
    ignore_check_login_urls = app.config['IGNORE_CHECK_LOGIN_URLS']
    path = request.path

    # 如果是静态文件就不要查询用户信息了
    pattern = re.compile('%s' % "|".join(ignore_check_login_urls))
    if pattern.match(path):
        return

    user_info = check_login()
    g.current_user=None
    if user_info:
        g.current_user=user_info
    # 加入日志
    LogService.addAccessLog()
    pattern = re.compile('%s' % "|".join(ignore_urls))
    if pattern.match(path):
        return

    if not user_info:
        return redirect( UrlManager.buildUrl("/user/login"))
    return


'''
判断用户是否已经登录
'''
def check_login():
    cookies = request.cookies
    auth_cookie = cookies[app.config['AUTH_COOKIE_NAME']] if app.config['AUTH_COOKIE_NAME'] in cookies else None
    app.logger.info( auth_cookie)

    if auth_cookie is None:
        return False

    auth_info = auth_cookie.split("#")
    if len(auth_info) != 2:
        return False

    try:
        user_info = User.query.filter_by(uid=auth_info[1]).first()
    except Exception:
        return False

    if user_info is None:
        return False
    if auth_info[0] != UserService.geneAuthCode( user_info ):
        return False

    if user_info.status != 1:
        return False

    return user_info