# https://www.instructables.com/id/Arduino-Python-Communication-via-USB/
# in rc.local:
#   su tilman -c 'python3 /media/hd/admin/doorbell/doorbell.py >> /media/hd/admin/doorbell/doorbell.log 2>&1 &'

import serial
import urllib.request
import logging
import logging.handlers as handlers
import time

logger = logging.getLogger('Rotating Log')
logger.setLevel(logging.INFO)
logHandler = handlers.RotatingFileHandler('/media/hd/admin/doorbell/doorbell.log', maxBytes=1000000, backupCount=2)
logHandler.setLevel(logging.INFO)
logHandler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s - %(message)s', '%Y-%m-%d %H:%M:%S'))
logger.addHandler(logHandler)

logger.info('Initializing')


arduino = serial.Serial('/dev/Doorbell', 9600, timeout=.1)

while True:
    data = arduino.readline()[:-2] #the last bit gets rid of the new-line chars
    if data:
        try:
            data = data.decode('utf8')
        except (UnicodeDecodeError) as ude:
            logger.error(ude)
        if (data == 'RING'):
            try:
                response = urllib.request.urlopen('http://192.168.178.60/bell/on', timeout=5).read().decode('utf-8')
            except Exception:
                logger.error("Could not ring doorbell")
#                logger.exception("Could not ring doorbell")
                time.sleep(300)
            else:
                logger.info(data)