#!/usr/bin/env python

"""

celcombiller AGI:

* Consult the user balance and authorize a call

* Save the call CDRs

* Update the user balance

"""

# pylint: disable=C0103

from datetime import datetime

import asterisk.agi

from asterisk.agi import AGIAppError

from models import session, User, CDR

agi = asterisk.agi.AGI()

from_user = session.query(User).filter_by(

clid=agi.env['agi_callerid']).one()

to_user = session.query(User).filter_by(

clid=agi.env['agi_extension']).one()

try:

agi.appexec('DIAL', 'SIP/%s,40,S(%d)' % (to_user.clid, from_user.balance))

except AGIAppError:

pass

if agi.get_variable('DIALSTATUS') == 'ANSWER':

# Time from answer to hangup

billsec = int(agi.get_variable('CDR(billsec)'))

# Time the user answered

answer = datetime.fromtimestamp(float(agi.get_variable('CDR(answer,u)')))

# Create a new CDR record

cdr = CDR(from_user=from_user, to_user=to_user,

billsec=billsec, answer=answer)

# Update user balance

from_user.balance -= billsec

session.commit()