#!/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.qts
import lib.txt
import lib.url
from lib.globals import STATE_UNKNOWN

try:
    import xmltodict
except ImportError:
    print('Python module "xmltodict" is not installed.')
    sys.exit(STATE_UNKNOWN)


__author__ = 'Linuxfabrik GmbH, Zurich/Switzerland'
__version__ = '2026041201'

DESCRIPTION = """Checks system and disk temperatures on QNAP appliances running QTS via the API.
Alerts when temperatures exceed the configured thresholds."""

DEFAULT_INSECURE = False
DEFAULT_NO_PROXY = False
DEFAULT_TIMEOUT = 6
DEFAULT_USERNAME = 'admin'


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(
        '--always-ok',
        help=lib.args.help('--always-ok'),
        dest='ALWAYS_OK',
        action='store_true',
        default=False,
    )

    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(
        '--password',
        help='QTS API password.',
        dest='PASSWORD',
        required=True,
    )

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

    parser.add_argument(
        '--url',
        help='QTS-based appliance URL. Example: `--url=https://192.168.1.1:8080`.',
        dest='URL',
        required=True,
    )

    parser.add_argument(
        '--username',
        help='QTS API username. Default: %(default)s',
        dest='USERNAME',
        default=DEFAULT_USERNAME,
    )

    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)

    auth_sid = lib.base.coe(lib.qts.get_auth_sid(args))

    # get system information
    url = (
        f'{args.URL}/cgi-bin/management/manaRequest.cgi'
        f'?subfunc=sysinfo&hd=no&multicpu=1&sid={auth_sid}'
    )
    result = lib.base.coe(
        lib.url.fetch(
            url, insecure=args.INSECURE, no_proxy=args.NO_PROXY, timeout=args.TIMEOUT
        )
    )
    data = xmltodict.parse(result)['QDocRoot']
    if data['authPassed'] == '0':
        lib.base.cu('Insufficient permissions.')

    # analyze data
    systemp_state = lib.base.get_state(
        int(data['func']['ownContent']['root']['sys_tempc']),
        int(data['func']['ownContent']['root']['SysTempWarnT']),
        int(data['func']['ownContent']['root']['SysTempErrT']),
        _operator='ge',
    )
    cputemp_state = lib.base.get_state(
        int(data['func']['ownContent']['root']['cpu_tempc']),
        int(data['func']['ownContent']['root']['CPUTempWarnT']),
        int(data['func']['ownContent']['root']['CPUTempErrT']),
        _operator='ge',
    )
    state = lib.base.get_worst(systemp_state, cputemp_state)

    # build the message
    root = data['func']['ownContent']['root']
    msg = (
        f'Sys: {int(root["sys_tempc"])}°C'
        f' (Thresholds: {int(root["SysTempWarnT"])}'
        f'/{int(root["SysTempErrT"])}°C)'
        f'{lib.base.state2str(systemp_state, prefix=" ")}'
        f', CPU: {int(root["cpu_tempc"])}°C'
        f' (Thresholds: {int(root["CPUTempWarnT"])}'
        f'/{int(root["CPUTempErrT"])}°C)'
        f'{lib.base.state2str(cputemp_state, prefix=" ")}'
    )
    perfdata = lib.base.get_perfdata(
        'systemp',
        int(data['func']['ownContent']['root']['sys_tempc']),
        warn=int(data['func']['ownContent']['root']['SysTempWarnT']),
        crit=int(data['func']['ownContent']['root']['SysTempErrT']),
        _min=0,
    )
    perfdata += lib.base.get_perfdata(
        'cputemp',
        int(data['func']['ownContent']['root']['cpu_tempc']),
        warn=int(data['func']['ownContent']['root']['CPUTempWarnT']),
        crit=int(data['func']['ownContent']['root']['CPUTempErrT']),
        _min=0,
    )

    # over and out
    lib.base.oao(msg, state, perfdata, always_ok=args.ALWAYS_OK)


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