# -*- coding: utf-8 -*-
#
# Copyright Grégory Soutadé 2023

# This file is part of iwla

# iwla is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# iwla is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with iwla.  If not, see <http://www.gnu.org/licenses/>.
#

import re

from iwla import IWLA
from iplugin import IPlugin

"""
Post analysis hook

Detect if IP is IPv4 or IPv6

Plugin requirements :
    None

Conf values needed :
    None

Output files :
    None

Statistics creation :
visits :
   remote_ip =>
       ip_type

month_stats :
    ip_type : {4: XXX, 6: XXX}

Statistics update :
    None

Statistics deletion :
    None
"""

class IWLAPostAnalysisIPType(IPlugin):

    def load(self):
        self.v4_re = re.compile('([0-9]{1,3}\.){3}[0-9]{1,3}$')
        return True
    
    def hook(self):
        stats = self.iwla.getValidVisitors()
        month_stats = self.iwla.getMonthStats()
        
        if month_stats.get('ip_type', None) is None:
            month_stats['ip_type'] = {4:0, 6:0}

        for (k, super_hit) in stats.items():
            if super_hit.get('ip_type', None) is None:
                if self.v4_re.match(super_hit['remote_ip']):
                    _type = 4
                else:
                    _type = 6
                super_hit['ip_type'] = _type
                month_stats['ip_type'][_type] += 1