import json
import requests
from . import check_input_attribute, standard_error_message
from pymisp import MISPAttribute, MISPEvent, MISPObject

mispattributes = {
    'input': ['ip-src', 'ip-dst'],
    'format': 'misp_standard'
}
moduleinfo = {
    'version': 1,
    'author': 'IP2Location.io',
    'description': 'An expansion module to query IP2Location.io for additional information on an IP address',
    'module-type': ['expansion', 'hover']
}
moduleconfig = ['key']

_GEOLOCATION_OBJECT_MAPPING = {
    'country_code': 'countrycode',
    'country_name': 'country',
    'region_name': 'region',
    'city_name': 'city',
    'zip_code': 'zipcode',
    'latitude': 'latitude',
    'longitude': 'longitude'
}


def handler(q=False):
    # Input checks
    if q is False:
        return False
    request = json.loads(q)
    if not request.get('attribute') or not check_input_attribute(request['attribute']):
        return {'error': f'{standard_error_message}, which should contain at least a type, a value and an uuid.'}
    attribute = request['attribute']
    if attribute.get('type') not in mispattributes['input']:
        return {'error': 'Wrong input attribute type.'}
    if not request.get('config'):
        return {'error': 'Missing ip2locationio config.'}
    if not request['config'].get('key'):
        return {'error': 'Missing ip2locationio API key.'}

    # Query ip2location.io
    query = requests.get(
        f"https://api.ip2location.io/json?key={request['config']['key']}&ip={attribute['value']}"
    )
    if query.status_code != 200:
        return {'error': f'Error while querying ip2location.io - {query.status_code}: {query.reason}'}
    iplio_result = query.json()

    # Check if the IP address is not reserved for special use
    # if ipinfo.get('bogon', False):
    if '' in iplio_result and iplio_result[''] == 'RSV':
        return {'error': 'The IP address is reserved for special use'}

    # Initiate the MISP data structures
    misp_event = MISPEvent()
    input_attribute = MISPAttribute()
    input_attribute.from_dict(**attribute)
    misp_event.add_attribute(**input_attribute)

    # Parse the geolocation information related to the IP address
    geolocation = MISPObject('geolocation')
    for field, relation in _GEOLOCATION_OBJECT_MAPPING.items():
        geolocation.add_attribute(relation, iplio_result[field])
    geolocation.add_reference(input_attribute.uuid, 'locates')
    misp_event.add_object(geolocation)

    # Return the results in MISP format
    event = json.loads(misp_event.to_json())
    return {
        'results': {key: event[key] for key in ('Attribute', 'Object')}
    }


def introspection():
    return mispattributes


def version():
    moduleinfo['config'] = moduleconfig
    return moduleinfo