#!/usr/bin/python

import dbus, flimflam, sys

from optparse import OptionParser

parser = OptionParser('Usage: %prog [options...] [var=value...]')
parser.add_option('--interface', dest='intf', default='wlan0',
                  help='Device name')
(options, args) = parser.parse_args()

flim = flimflam.FlimFlam(dbus.SystemBus())

device = flim.FindElementByNameSubstring('Device', options.intf)
if device is None:
    device = flim.FindElementByPropertySubstring('Device', 'Interface',
                                                 options.intf)

if not device:
    print "Device not found."
    sys.exit(1)

attributes = {'ScanInterval': dbus.UInt16,
              'BgscanMethod': dbus.String,
              'BgscanShortInterval': dbus.UInt16,
              'BgscanSignalThreshold': dbus.Int32}

if not args:
    print "Background scan parameters for %s" % device.object_path
    props = device.GetProperties(utf8_strings = True)
    for attr in attributes.keys():
        if attr in props:
            print "    %s: %s" % (attr, props[attr])
    sys.exit(0)

for assignment in args:
    print 'Assigning parameters on device %s' % (device.object_path)
    attr, sep, val = assignment.partition('=')
    if sep != '=' or attr not in attributes.keys():
        print 'Bad assignment.  Assignment must be in the form:'
        print '   "var=val", where possible "var" are: %s' % attributes.keys()
        sys.exit(1)
    elif val == 'default':
        device.ClearProperty(attr)
    else:
        device.SetProperty(attr, attributes[attr](val))