import re

import json

from datetime import datetime

import pygeoip

from ennstatus.status.functions import _send_mail

FINGERPRINT_REGEX = re.compile(r'^[A-Z0-9]{40}$', re.I)

IP_REGEX = (r'^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}'

            r'(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$')

IP_REGEX = re.compile(IP_REGEX)

PRIVATE_IP_REGEX = (r'(^127\.)|(^192\.168\.)|(^10\.)|(^172\.1[6-9]\.)'

                    r'|(^172\.2[0-9]\.)|(^172\.3[0-1]\.)|'

                    r'255\.255\.255\.255')

    if 'ip' in server:

        if IP_REGEX.match(server['ip']) is None:

            raise ValueError('ip is not the right format!\n')

        elif PRIVATE_IP_REGEX.match(server['ip']) is not None:

            raise ValueError('ip is not accepted!\n')

    return True

def _send_offline_mail(server_name, last_updated):

    subject = '[Ennstatus] %s Tor status went offline'

    _send_mail(server_name, last_updated, subject)

    mail_cache[server_name] = datetime.utcnow()

def update_server(server, ip):

    server['last_updated'] = datetime.utcnow().strftime(DATE_FORMAT)

    server['server_status'] = 'Online'

    server['country'] = gi4.country_name_by_addr(ip)

    server_name = server['server_name']

    try:

        filename = ''.join(['data/', server_name.lower(), '.json'])

        with open(filename, 'w', encoding='utf-8') as fb:

            json.dump(server, fb)

    except Exception as e:

        return e

    if server['tor_status'] == 'Offline':

        if server_name in mail_cache:

            send_date = mail_cache[server_name]

            now = datetime.utcnow()

            delta = now - send_date

            if delta.seconds <= 7200:

                return server

            else:

                _send_offline_mail(server_name, server['last_updated'])

        else:

            _send_offline_mail(server_name, server['last_updated'])

    elif server_name in mail_cache:

        del mail_cache[server_name]

    return server

    stream_handler = logging.StreamHandler()

    stream_handler.setLevel(logging.DEBUG)

    stream_handler.setFormatter(logging_debug_formatter)

    rotating_file_handler = logging.handlers.RotatingFileHandler(

        'log/ennstatus.log',

        maxBytes=1300000,

        backupCount=10,

        encoding='utf-8')

    rotating_file_handler.setLevel(logging.INFO)

    rotating_file_handler.setFormatter(logging_formatter)

        second_rotating_file_handler = logging.handlers.RotatingFileHandler(

            'log/ennstatus_debug.log',

            maxBytes=1300000,

            backupCount=20,

            encoding='utf-8')

        second_rotating_file_handler.setLevel(logging.DEBUG)

        second_rotating_file_handler.setFormatter(logging_debug_formatter)

        app.logger.addHandler(second_rotating_file_handler)

    smtp_handler = logging.handlers.SMTPHandler(

        'localhost',

        'ennstatus@enn.lu',