home/portalmonitor.py

   1 #!/usr/bin/env python3
   2
   3 import requests
   4 import time
   5 import sys
   6 import configparser
   7 from suntime import Sun
   8 from optparse import OptionParser
   9
  10 parser = OptionParser(usage="usage: %prog [options]")
  11 parser.add_option("-s",
  12                   "--status",
  13                   action="store_true",
  14                   dest="printStatus",
  15                   help="Print Status Information",
  16                   default=False)
  17 parser.add_option("-f",
  18                   "--force",
  19                   action="store_true",
  20                   dest="force",
  21                   help="Force retrieval of Power value",
  22                   default=False)
  23 (options, args) = parser.parse_args()
  24
  25
  26 def isDaylight(lat, lon, toleranceSeconds):
  27     daylight = False
  28     sun = Sun(lat, lon)
  29     sunriseTimestamp = int(sun.get_local_sunrise_time().timestamp())
  30     sunsetTimestamp = int(sun.get_local_sunset_time().timestamp())
  31     nowTimestamp = int(time.time())
  32
  33     if ((sunriseTimestamp + toleranceSeconds) < nowTimestamp) and (
  34         (sunsetTimestamp - toleranceSeconds) > nowTimestamp):
  35         daylight = True
  36
  37     return daylight
  38
  39
  40 def getCurrentPower(userName, password, stationId):
  41     with requests.Session() as s:
  42         try:
  43             r = s.post('https://www.envertecportal.com/apiaccount/login',
  44                        data={
  45                            'userName': userName,
  46                            'pwd': password
  47                        },
  48                        timeout=(10, 30))
  49
  50             r = s.post(
  51                 'https://www.envertecportal.com/ApiStations/getStationInfo',
  52                 data={
  53                     'stationId': stationId
  54                 },
  55                 timeout=(10, 60)).json()
  56             power = r['Data']['Power']
  57
  58             r = s.post('https://www.envertecportal.com/apiAccount/Logout',
  59                        timeout=(10, 30))
  60         except requests.exceptions.RequestException as e:
  61             raise SystemExit(e)
  62
  63     return float(power)
  64
  65
  66 # read configuration file
  67 conf = configparser.ConfigParser()
  68 conf.read('portalmonitor.ini')
  69
  70 # retrieve current power value as reported by envertecportal
  71 if isDaylight(conf['config'].getfloat('lat'), conf['config'].getfloat('lon'),
  72               conf['config'].getint('toleranceSeconds')) or options.force:
  73     currentPower = getCurrentPower(conf['config']['userName'],
  74                                    conf['config']['password'],
  75                                    conf['config']['stationId'])
  76
  77     if options.printStatus:
  78         print(f"Current Power: {currentPower}")
  79
  80     if currentPower == 0:
  81         print('Error: Power dropped to 0 but we should have daylight!')
  82         sys.exit(1)