#
# Check https://www.hjemmeautomasjon.no/forums/topic/2737-multireg-termostat-se-n%C3%A5r-den-er-%C2%ABaktiv%C2%BB-i-homeseer/?tab=comments#comment-33740

import os, sys
import time
import openhab

openhab_url = 'http://foobar:8090/rest'
openhab_client = openhab.openHAB(openhab_url)
openhab_logfile = '/var/log/openhab2/openhab.log'

multiregs = {
# z-wave node, room name
    '22': 'Rom1',
    '23': 'Rom2',
    '11': 'Rom3',
    '14': 'Rom4'
}

#
# Tail a logfile that can be rotated at any time:
def tail(theFile, filename, inode):
    theFile.seek(0,2)   # Go to the end of the file
    while True:
        line = theFile.readline()
        if not line:
            time.sleep(2)    # Sleep briefly for 10sec
            if os.stat(filename).st_ino != inode:
                # Wait for new file:
                while not os.path.isfile(filename):
                    time.sleep(1)
                theFile = open(filename, 'r')
                inode = os.stat(filename).st_ino
                print "LOGFILE ROTATED"
            continue
        yield line

if __name__ == '__main__':
    linecounter = 0
    lastbasicset = 0
    fd = open(openhab_logfile, 'r')
    current_inode = os.fstat(fd.fileno()).st_ino
    for line in tail(fd, openhab_logfile, current_inode):
        linecounter += 1
        if line.find('NODE') > 0 and line.find('Basic Set sent to the controller') > 0:
            lastbasicset = linecounter
        if line.find('NODE') > 0 and line.find('Basic report') > 0 and linecounter < lastbasicset + 4:
            elements = line[line.find('NODE'):].split()
            nodeno = elements[1].replace(':', '')
            if nodeno in multiregs and elements[6] == "0x00":
                print multiregs[nodeno]  + " was turned off"
                openhab_client.get_item('Termostat_' + multiregs[nodeno] + "_bryter").state = "OFF"
            elif nodeno in multiregs and elements[6] == "0xFF":
                print multiregs[nodeno] + " was turned ON"
                openhab_client.get_item('Termostat_' + multiregs[nodeno] + "_bryter").state = "ON"
            else:
                print "Not multireg node:"
                print elements