#!/usr/bin/env python3
# -*-coding:UTF-8 -*

import os
import re
import sys

from flask import url_for

from pymisp import MISPObject

import requests

sys.path.append(os.environ['AIL_BIN'])
##################################
# Import Project packages
##################################
from lib.ConfigLoader import ConfigLoader
from lib.objects.abstract_daterange_object import AbstractDaterangeObject
from packages import Date

config_loader = ConfigLoader()
r_objects = config_loader.get_db_conn("Kvrocks_Objects")
baseurl = config_loader.get_config_str("Notifications", "ail_domain")
config_loader = None


class Cve(AbstractDaterangeObject):
    """
    AIL Cve Object.
    """

    def __init__(self, id):
        super(Cve, self).__init__('cve', id)

    # def get_ail_2_ail_payload(self):
    #     payload = {'raw': self.get_gzip_content(b64=True),
    #                 'compress': 'gzip'}
    #     return payload

    # # WARNING: UNCLEAN DELETE /!\ TEST ONLY /!\
    def delete(self):
        # # TODO:
        pass

    def get_link(self, flask_context=False):
        if flask_context:
            url = url_for('correlation.show_correlation', type=self.type, id=self.id)
        else:
            url = f'{baseurl}/correlation/show?type={self.type}&id={self.id}'
        return url

    # TODO # CHANGE COLOR
    def get_svg_icon(self):
        return {'style': 'fas', 'icon': '\uf188', 'color': '#1E88E5', 'radius': 5}

    def get_misp_object(self):
        obj_attrs = []
        obj = MISPObject('vulnerability')
        first_seen = self.get_first_seen()
        last_seen = self.get_last_seen()
        if first_seen:
            obj.first_seen = first_seen
        if last_seen:
            obj.last_seen = last_seen
        if not first_seen or not last_seen:
            self.logger.warning(
                f'Export error, None seen {self.type}:{self.subtype}:{self.id}, first={first_seen}, last={last_seen}')

        obj_attrs.append(obj.add_attribute('id', value=self.id))
        for obj_attr in obj_attrs:
            for tag in self.get_tags():
                obj_attr.add_tag(tag)
        return obj

    def get_meta(self, options=set()):
        meta = self._get_meta(options=options)
        meta['id'] = self.id
        meta['tags'] = self.get_tags(r_list=True)
        return meta

    def get_cve_search(self):
        try:
            response = requests.get(f'https://cvepremium.circl.lu/api/cve/{self.id}', timeout=10)
            if response.status_code == 200:
                json_response = response.json()
                # 'summary'
                # 'references'
                # 'last-modified'
                # 'Published'
                # 'Modified'
                return json_response
            else:
                return {'error': f'{response.status_code}'}
        except requests.exceptions.ConnectionError:
            return {'error': f'Connection Error'}
        except requests.exceptions.ReadTimeout:
            return {'error': f'Timeout Error'}


# TODO  ADD SEARCH FUNCTION

def get_all_cves():
    return r_objects.smembers(f'cve:all')

def get_cves_by_date(date):
    return r_objects.zrange(f'cve:date:{date}', 0, -1)

def get_nb_cves_by_date(date):
    return r_objects.zcard(f'cve:date:{date}')

def get_cves_by_daterange(date_from, date_to):
    cves = set()
    for date in Date.substract_date(date_from, date_to):
        cves = cves | set(get_cves_by_date(date))
    return cves

def get_cves_meta(cves_id, options=set()):
    dict_cve = {}
    for cve_id in cves_id:
        cve = Cve(cve_id)
        dict_cve[cve_id] = cve.get_meta(options=options)
    return dict_cve

def sanitize_cve_name_to_search(name_to_search): # TODO FILTER NAME
    return name_to_search

def search_cves_by_name(name_to_search, r_pos=False):
    cves = {}
    # for subtype in subtypes:
    r_name = sanitize_cve_name_to_search(name_to_search)
    if not name_to_search or isinstance(r_name, dict):
        return cves
    r_name = re.compile(r_name)
    for cve_name in get_all_cves():
        res = re.search(r_name, cve_name)
        if res:
            cves[cve_name] = {}
            if r_pos:
                cves[cve_name]['hl-start'] = res.start()
                cves[cve_name]['hl-end'] = res.end()
    return cves

def api_get_cves_range_by_daterange(date_from, date_to):
    cves = []
    for date in Date.substract_date(date_from, date_to):
        d = {'date': f'{date[0:4]}-{date[4:6]}-{date[6:8]}',
             'CVE': get_nb_cves_by_date(date)}
        cves.append(d)
    return cves

def api_get_cves_meta_by_daterange(date_from, date_to):
    date = Date.sanitise_date_range(date_from, date_to)
    return get_cves_meta(get_cves_by_daterange(date['date_from'], date['date_to']), options=['sparkline'])

def get_cve_graphline(cve_id):
    cve = Cve(cve_id)
    graphline = []
    if cve.exists():
        nb_day = 30
        for date in Date.get_previous_date_list(nb_day):
            graphline.append({'date': f'{date[0:4]}-{date[4:6]}-{date[6:8]}', 'value': cve.get_nb_seen_by_date(date)})
    return graphline


# if __name__ == '__main__':
#     name_to_search = '98'
#     print(search_cves_by_name(name_to_search))