import xml.etree.ElementTree as ET
from datetime import datetime

import redis
import requests
from celery import task
from celery.utils.log import get_task_logger

logger = get_task_logger(__name__)

@task
def parse_cb():
    url = 'https://www.cbr-xml-daily.ru/daily_utf8.xml'
    res = requests.get(url)
    root = ET.fromstring(res.content.decode())
    result = {child.find("CharCode").text: child.find("Value").text for child in root}
    redis_ = redis.StrictRedis(host='redis', port=6379, db=0)
    redis_.set('result', str(result))
    redis_.set('time', str(datetime.now()))
    logger.info(result)