# -*- coding: utf-8 -*-
#
import os
from django.utils.translation import ugettext as _

import ipdb

__all__ = ['get_ip_city']
ipip_db = None


def get_ip_city(ip):
    global ipip_db
    if not ip or not isinstance(ip, str):
        return _("Invalid ip")
    if ':' in ip:
        return 'IPv6'
    if ipip_db is None:
        ipip_db_path = os.path.join(os.path.dirname(__file__), 'ipipfree.ipdb')
        ipip_db = ipdb.City(ipip_db_path)
    info = list(set(ipip_db.find(ip, 'CN')))
    if '' in info:
        info.remove('')
    return ' '.join(info)