#!/usr/bin/python3

import argparse
import sys
import traceback

import requests

from checker import nagios

# https://github.com/LukasK13/check_home-assistant/blob/master/check_home-assistant.py

parser = argparse.ArgumentParser(prog='check_home-assistant.py', description='Check Home-Assistant API for state')
parser.add_argument('-u', '--url', dest='url', help='URL to the Home-Assistant API.')
parser.add_argument('-t', '--token', dest='token', metavar='Access-Token', help='Sccess token for Home-Assistant.', required=True)
parser.add_argument('-i', '--insecure', dest='verify', default=True, action='store_false', help="Insecure connection. Don't verify the SSL certificate.")
args = parser.parse_args()

headers = {'Authorization': 'Bearer ' + args.token, 'content-type': 'application/json'}
try:
    res = requests.get(args.url.strip('/') + '/api/', headers=headers, verify=args.verify)
    state_mes = res.json()
    state = state_mes['message']
except:
    print('Unknown: failed to fetch data')
    print(traceback.format_exc())
    sys.exit(nagios.STATE_CRIT)

if res.status_code == 200:
    if state == 'API running.':
        print('OK: API running')
    else:
        print(f'Critical: API is {state}')
        sys.exit(nagios.STATE_CRIT)
else:
    print(f'Unknown: Request returned status code {str(res.status_code)}')
    sys.exit(nagios.STATE_CRIT)