# coding=utf-8
import json
import logging
import requests

from urlparse import urljoin, parse_qsl

from library.yinkayo.api.door import Door
from library.yinkayo.api.login import Login
from library.yinkayo.constants import RetCode, CommonErrorCode
from library.yinkayo.exceptions import FCardWebTimeOutError, FCardWebNetWorkError, FCardWebAuthError
from library.yinkayo.constants import DoorOnlineStatus


from django.core.cache import cache

logger = logging.getLogger(__name__)


class FCardWeb(object):
    urlBase = "https://yun.pc15.net/"
    urlTestBase = "https://yun.pc15.net/demo_ASPX/"

    def __init__(self, customer, operator, password, debug=False):

        self._customer = customer
        self._operator = operator
        self._password = password

        self._debug = debug
        self._cookie = cache.get(str(self))
        self.Login = Login(self)
        self.Door = Door(self)

        self._isRetry = False

    def __str__(self):
        return "{}-{}-{}".format(self._customer, self._operator, self._password)

    def _handle_response(self, response):  # type:(requests.Response) -> requests.Response
        try:
            response.raise_for_status()
        except requests.RequestException as ree:
            logger.error("[FCardWeb _handle_response] status_code = {}, error = {}, response = {}".format(response.status_code, ree, response))
            raise FCardWebNetWorkError(ree.message)

        result = response.json()
        logger.info("[FCardWeb _handle_result] request success, result = {}".format(result))

        # 部分分页接口没有retCode
        if "RetCode" in result:
            retCode, errorCode = result["RetCode"], result["ErrCode"]
        else:
            retCode, errorCode = RetCode.SUCCESS, CommonErrorCode.SUCCESS

        if retCode != RetCode.SUCCESS:
            logger.error("[FCardWeb _handle_result] request error, result = {}".format(result))

            if errorCode == CommonErrorCode.COOKIE_EXP:
                if not self._isRetry:
                    cookies = self.get_cookie()
                    body = response.request.body
                    try:
                        data = dict(parse_qsl(body))
                    except Exception as e:
                        logger.warning("[FCardWeb _handle_result] parse_qsl error, error = {}".format(e))
                        data = {}
                    return self._post(apiPath=response.request.path_url, cookies=cookies, **data)
                else:
                    raise FCardWebAuthError(u"登录过期")
            else:
                raise FCardWebNetWorkError(u"请求失败")

        else:
            return response

    def _post(self, apiPath, **kwargs):
        logger.info("[FCardWeb _post] ready to send post request to server, path = {}, data = {}".format(apiPath, kwargs))

        if not self._debug:
            url = urljoin(self.urlBase, apiPath)
        else:
            url = urljoin(self.urlTestBase, apiPath)

        cookies = kwargs.pop("cookies", self._cookie)

        try:
            response = requests.post(url, data=kwargs, cookies=cookies)
        except requests.exceptions.Timeout:
            raise FCardWebTimeOutError(u"请求超时")

        return self._handle_response(response)

    def post(self, apiPath, **kwargs):
        return self._post(apiPath, **kwargs)

    def load_login_info(self):
        return self._customer, self._operator, self._password

    def get_cookie(self):
        cookies = self.Login.login()

        cache.set(str(self), cookies, timeout=60*60*23)
        self._cookie = cookies

        return cookies