#!/usr/bin/env python
#import pprint 
import json
import ESL
import os

import redis
r = redis.Redis(host='localhost', port=6379, db=0)

headers = {'Content-Type': 'application/json', 'Accept-Charset': 'UTF-8'}

#pp = pprint.PrettyPrinter(indent=4)

con = ESL.ESLconnection('127.0.0.1', '8021', 'ClueCon')
if con.connected():
    con.events('json', 'CHANNEL_STATE')
    while 1:
        e = con.recvEvent()
        if e:
            call = json.loads(e.serialize('json'))
            if call['Event-Name'] == 'CHANNEL_STATE':
              #pp.pprint(call)
              #print 'Channel-state: '+ call['Channel-State']
              if 'Channel-Presence-ID' in call.keys():
                #print 'Channel-Presence-ID: '+ call['Channel-Presence-ID']
                if call['Channel-State'] == 'CS_INIT':
                  r.incr(call['Channel-Presence-ID'])
                if (call['Channel-State'] == 'CS_HANGUP') and (r.get(call['Channel-Presence-ID']) > 0):
                  r.decr(call['Channel-Presence-ID'])