import json
import base64

misperrors = {'error': 'Error'}

moduleinfo = {
    'version': '1',
    'author': 'TM',
    'description': 'Lite export of a MISP event.',
    'module-type': ['export'],
    'name': 'Lite Export',
    'logo': '',
    'requirements': [],
    'features': 'This module is simply producing a json MISP event format file, but exporting only Attributes from the Event. Thus, MISP Events exported with this module should have attributes that are not internal references, otherwise the resulting event would be empty.',
    'references': [],
    'input': 'MISP Event attributes',
    'output': 'Lite MISP Event',
}

moduleconfig = ["indent_json_export"]

mispattributes = {}
outputFileExtension = "json"
responseType = "application/json"


def handler(q=False):
    if q is False:
        return False

    request = json.loads(q)

    config = {}
    if "config" in request:
        config = request["config"]
    else:
        config = {"indent_json_export": None}

    if config['indent_json_export'] is not None:
        try:
            config['indent_json_export'] = int(config['indent_json_export'])
        except Exception:
            config['indent_json_export'] = None

    if 'data' not in request:
        return False

    # ~ Misp json structur
    liteEvent = {'Event': {}}

    for evt in request['data']:
        rawEvent = evt['Event']
        liteEvent['Event']['info'] = rawEvent['info']
        liteEvent['Event']['Attribute'] = []

        attrs = evt['Attribute']
        for attr in attrs:
            if 'Internal reference' not in attr['category']:
                liteAttr = {}
                liteAttr['category'] = attr['category']
                liteAttr['type'] = attr['type']
                liteAttr['value'] = attr['value']
                liteEvent['Event']['Attribute'].append(liteAttr)

    return {'response': [],
            'data': str(base64.b64encode(bytes(
                json.dumps(liteEvent, indent=config['indent_json_export']), 'utf-8')), 'utf-8')}


def introspection():
    modulesetup = {}
    try:
        responseType
        modulesetup['responseType'] = responseType
    except NameError:
        pass
    try:
        userConfig
        modulesetup['userConfig'] = userConfig
    except NameError:
        pass
    try:
        outputFileExtension
        modulesetup['outputFileExtension'] = outputFileExtension
    except NameError:
        pass
    try:
        inputSource
        modulesetup['inputSource'] = inputSource
    except NameError:
        pass
    return modulesetup


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