import json
from slack_sdk import WebClient
from slack_sdk.errors import SlackApiError
from ._utils import utils

misperrors = {'error': 'Error'}

# config fields that your code expects from the site admin
moduleconfig = {
    'params': {
        'slack_bot_token': {
            'type': 'string',
            'description': 'The Slack bot token generated when you created the bot account',
        },
        'channel_id': {
            'type': 'string',
            'description': 'The channel ID you want to post messages to',
        },
        'message_template': {
            'type': 'large_string',
            'description': 'The template to be used to generate the message to be posted',
            'value': 'The **template** will be rendered using *Jinja2*!',
            'jinja_supported': True,
        },
    },
    # Blocking modules break the execution of the current action
    'blocking': False,
    # Indicates whether parts of the data passed to this module should be filtered.
    'support_filters': True,
    # Indicates whether the data passed to this module should be compliant with the MISP core format
    'expect_misp_core_format': False,
}

# returns either "boolean" or "data"
# Boolean is used to simply signal that the execution has finished.
# For blocking modules, the actual boolean value determines whether we break execution
returns = 'boolean'

moduleinfo = {
    'version': '0.1',
    'author': 'goodlandsecurity',
    'description': 'Simplistic module to send messages to a Slack channel.',
    'module-type': ['action'],
    'name': 'Slack',
    'logo': '',
    'requirements': [],
    'features': '',
    'references': [],
    'input': '',
    'output': ''
}


def create_post(request):
    params = request['params']
    slack_token = params['slack_bot_token']
    channel_id = params['channel_id']

    client = WebClient(token=slack_token)

    data = request.get('matchingData', request.get('data', {}))

    if params['message_template']:
        message = utils.renderTemplate(data, params['message_template'])
    else:
        message = '```\n{}\n```'.format(json.dumps(data))

    try:
        client.chat_postMessage(channel=channel_id, text=message)
        return True
    except SlackApiError as e:
        error_message = e.response['error']
        print(f"Error posting message: {error_message}")
        return False


def handler(q=False):
    if q is False:
        return False
    request = json.loads(q)
    create_post(request)
    return {"data": True}


def introspection():
    modulesetup = {}
    try:
        modulesetup['config'] = moduleconfig
    except NameError:
        pass
    return modulesetup


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