# -*- coding: utf-8 -*-
#
import ipaddress
from urllib.parse import urljoin, urlparse

from django.conf import settings
from django.utils.translation import ugettext_lazy as _

from common.utils import validate_ip, get_ip_city, get_request_ip
from common.utils import get_logger
from audits.models import UserLoginLog
from audits.const import DEFAULT_CITY
from .notifications import DifferentCityLoginMessage

logger = get_logger(__file__)


def check_different_city_login_if_need(user, request):
    if not settings.SECURITY_CHECK_DIFFERENT_CITY_LOGIN:
        return

    ip = get_request_ip(request) or '0.0.0.0'
    if not (ip and validate_ip(ip)):
        city = DEFAULT_CITY
    else:
        city = get_ip_city(ip) or DEFAULT_CITY

    city_white = [_('LAN'), 'LAN']
    is_private = ipaddress.ip_address(ip).is_private
    if not is_private:
        last_user_login = UserLoginLog.objects.exclude(city__in=city_white) \
            .filter(username=user.username, status=True).first()

        if last_user_login and last_user_login.city != city:
            DifferentCityLoginMessage(user, ip, city).publish_async()


def build_absolute_uri(request, path=None):
    """ Build absolute redirect """
    if path is None:
        path = '/'
    site_url = urlparse(settings.SITE_URL)
    scheme = site_url.scheme or request.scheme
    host = request.get_host()
    url = f'{scheme}://{host}'
    redirect_uri = urljoin(url, path)
    return redirect_uri


def build_absolute_uri_for_oidc(request, path=None):
    """ Build absolute redirect uri for OIDC """
    if path is None:
        path = '/'
    if settings.BASE_SITE_URL:
        # OIDC 专用配置项
        redirect_uri = urljoin(settings.BASE_SITE_URL, path)
        return redirect_uri
    return build_absolute_uri(request, path=path)