#!/usr/bin/python

# Poll XBMC and write a file containing how long it's been idle for
#
# 2 clause BSDL (C) Daniel O'Connor <darius@dons.net.au>
#

import fcntl
import os
import sys
import time
import urllib2

debug = False

idlefilepath = '/home/myth/.xbmcidletime'
xbmcurl = "http://127.0.0.1:8080/xbmcCmds/xbmcHttp?command=getcurrentlyplaying"
looptime = 5
xbmcIdletime = 0

try:
    idlefile = open(idlefilepath, 'w')
except IOEerror, e:
    print "Unable to open idle file: " + str(e)
    sys.exit(1)

try:
    fcntl.flock(idlefile, fcntl.LOCK_EX | fcntl.LOCK_NB)
except IOError, e:
    print "Unable to lock file: " + str(e)
    sys.exit(1)

os.ftruncate(idlefile.fileno(), 0)

while True:
    time.sleep(looptime)

# check XBMC for activity:
    xbmcRequest = urllib2.Request(xbmcurl)
    try:
        handle = urllib2.urlopen(xbmcRequest)
    except urllib2.URLError, e:
        if debug:
            print "Error talking to XBMC assuming idle: " + str(e)
        xbmcIdletime += looptime
    else:
        page = handle.read()
        if page.find('Filename:[Nothing Playing]') >= 0:
            if debug:
                print "Nothing Playing"
            xbmcIdletime += looptime
        elif page.find('PlayStatus:Playing') >= 0:
            if debug:
                print "XBMC is playing"
            xbmcIdletime = 0
        elif page.find('PlayStatus:Paused') >= 0:
            if debug:
                print "XBMC is paused"
            xbmcIdletime += looptime

    if debug:
        print "idle time now " + str(xbmcIdletime)
    os.ftruncate(idlefile.fileno(), 0)
    idlefile.seek(0, 0)
    idlefile.write(str(xbmcIdletime) + '\n')
    idlefile.flush()