#!/usr/bin/env python3
# -*- coding: utf-8; py-indent-offset: 4 -*-
#
# Author:  Linuxfabrik GmbH, Zurich, Switzerland
# Contact: info (at) linuxfabrik (dot) ch
#          https://www.linuxfabrik.ch/
# License: The Unlicense, see LICENSE file.

# https://github.com/Linuxfabrik/monitoring-plugins/blob/main/CONTRIBUTING.md

"""See the check's README for more details."""

import argparse
import sys

import lib.args
import lib.base
import lib.human
import lib.lftest
import lib.nodebb
import lib.time
from lib.globals import STATE_OK, STATE_UNKNOWN

__author__ = 'Linuxfabrik GmbH, Zurich/Switzerland'
__version__ = '2026040801'

DESCRIPTION = """Retrieves recent events from the NodeBB event log via the admin API. Reports
administrative actions such as user bans, plugin activations, and configuration
changes."""

DEFAULT_INSECURE = False
DEFAULT_NO_PROXY = False
DEFAULT_TIMEOUT = 3
DEFAULT_URL = 'http://localhost:4567/forum'


def parse_args():
    """Parse command line arguments using argparse."""
    parser = argparse.ArgumentParser(description=DESCRIPTION)

    parser.add_argument(
        '-V',
        '--version',
        action='version',
        version=f'%(prog)s: v{__version__} by {__author__}',
    )

    parser.add_argument(
        '--insecure',
        help=lib.args.help('--insecure'),
        dest='INSECURE',
        action='store_true',
        default=DEFAULT_INSECURE,
    )

    parser.add_argument(
        '--no-proxy',
        help=lib.args.help('--no-proxy'),
        dest='NO_PROXY',
        action='store_true',
        default=DEFAULT_NO_PROXY,
    )

    parser.add_argument(
        '--test',
        help=lib.args.help('--test'),
        dest='TEST',
        type=lib.args.csv,
    )

    parser.add_argument(
        '--timeout',
        help=lib.args.help('--timeout') + ' Default: %(default)s (seconds)',
        dest='TIMEOUT',
        type=int,
        default=DEFAULT_TIMEOUT,
    )

    parser.add_argument(
        '-p',
        '--token',
        help='NodeBB API bearer token.',
        dest='TOKEN',
        required=True,
    )

    parser.add_argument(
        '--url',
        help='NodeBB API URL. Default: %(default)s',
        dest='URL',
        default=DEFAULT_URL,
    )

    args, _ = parser.parse_known_args()
    return args


def main():
    """The main function. This is where the magic happens."""

    # parse the command line
    try:
        args = parse_args()
    except SystemExit:
        sys.exit(STATE_UNKNOWN)

    # fetch data
    if args.TEST is None:
        result = lib.nodebb.get_data(args, '/api/admin/advanced/events')
    else:
        # do not call the command, put in test data
        import json

        stdout, _stderr, _retc = lib.lftest.test(args.TEST)
        result = json.loads(stdout)

    # init some vars
    msg = ''
    table_data = []

    # analyze data
    for item in result['events']:
        # append subdict "user" to the parent item
        tmp = {**item, **item['user']}
        tmp['user'] = None
        ts_epoch = tmp['timestamp'] / 1000
        tmp['timestamp'] = (
            f'{lib.time.epoch2iso(ts_epoch)}'
            f' ({lib.human.seconds2human(lib.time.now(as_type="epoch") - ts_epoch)} ago)'
        )
        table_data.append(tmp)

    # build the message
    if len(result['events']) == 0:
        msg = 'Everything is ok.'
    else:
        evt = result['events'][0]
        ago = lib.human.seconds2human(
            lib.time.now(as_type='epoch') - evt['timestamp'] / 1000,
        )
        msg = (
            f'Latest event: #{evt["eid"]}'
            f' uid={evt["uid"]}'
            f' {evt["user"]["username"]}'
            f' {evt["type"]}'
            f' {evt["ip"]}'
            f' ({ago} ago)\n\n'
        )
        if table_data:
            keys = [
                'eid',
                'uid',
                'displayname',
                'type',
                'timestamp',
                'ip',
            ]
            headers = [
                'eid',
                'uid',
                'displayname',
                'type',
                'timestamp',
                'ip',
            ]
            msg += lib.base.get_table(table_data, keys, header=headers)

    # over and out
    lib.base.oao(msg, STATE_OK)


if __name__ == '__main__':
    try:
        main()
    except Exception:
        lib.base.cu()
