#!/usr/bin/python
# headset.py: a script for establishing a connection to a Bluetooth headset.
# This is a modification to the version found on:
# http://wiki.bluez.org/wiki/HOWTO/AudioDevices
# The original author is unknown.
# Modified by C.M. Brannon.
# Last-modified: 01/14/2008.
import dbus
from sys import argv, exit, stderr
from curses.ascii import isxdigit

def usage(progname):
      print >>stderr, 'Usage: %s <Bluetooth-addr>' % (progname)
      print >>stderr, "For example: %s 00:01:23:45:67:89" % (progname)

def validateBluetoothAddress(addr):
    components = addr.split(':')
    if len(components) != 6:
        print >>stderr, 'Address must have 6 components.'
        return False
    for comp in components:
        if not validateAddressComponent(comp):
            print >>stderr, '%s is not legal in a Bluetooth address.' % (comp)
            return False
    return True

def validateAddressComponent(component):
    return isxdigit(component[0]) and isxdigit(component[1])


bt_addr = ''
try:
    bt_addr = argv[1]
    if not validateBluetoothAddress(bt_addr):
        print >>stderr, "Invalid address.  Address must be of the form 00:01:23:45:67:89."
        exit(1)
except IndexError:
    usage(argv[0])
    exit(1)

bus = dbus.SystemBus()
manager = dbus.Interface(bus.get_object('org.bluez', '/org/bluez'), 'org.bluez.Manager')
bus_id = manager.ActivateService('audio')
audio = dbus.Interface(bus.get_object(bus_id, '/org/bluez/audio'), 'org.bluez.audio.Manager')

path = audio.CreateHeadset(bt_addr)
#audio.ChangeDefaultHeadset(path) #change the device to be used by default
headset = dbus.Interface (bus.get_object(bus_id, path), 'org.bluez.audio.Headset')
#Connect and Play are not required in PCM mode
headset.Connect()
headset.Play()