check-temperature-recency

#!/usr/bin/env python3
#
# Check that we have recently evaluated temperature.
#
# Configure using systemd user timer units https://gist.github.com/oprypin/0f0c3479ab53e00988b52919e5d7c144
#

import json
import sys
import os
from datetime import datetime
from datetime import date
import subprocess
import time

libdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'lib')
if os.path.exists(libdir):
    sys.path.append(libdir)
sys.path.append('/home/peter/.local/lib')

from PUStatusReporter import reporter


with open(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'volatile', 'config.json'), 'r') as config_file:
    config = json.load(config_file)

# wait until we have confirmed network connectivity
while True:
    process = subprocess.Popen(["ping", "-c", "1", config['ping_target']], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    output, error = process.communicate()
    if process.returncode == 0:
        break
    else:
        time.sleep(30)

status = reporter.get_status('cupboard_temperature', config['bearer_key'])

last_temp_check_date = datetime.strptime(status['payload'].split(' ')[1], '%Y-%m-%d')

if last_temp_check_date.date() < date.today():
    subprocess.run([config['send_notification_script'], 'Cupboard Temperature is old', f'Cupboard Temperature last checked on {last_temp_check_date}'])