#!/usr/bin/python3

import sys
import dbus

if len(sys.argv) < 4:
	print("Usage: set-context-property <context> <name> <value>")
	sys.exit(1)

bus = dbus.SystemBus()

manager = dbus.Interface(bus.get_object('org.ofono', '/'),
						'org.ofono.Manager')

modems = manager.GetModems()

for path, properties in modems:
	if "org.ofono.ConnectionManager" not in properties["Interfaces"]:
		continue

	connman = dbus.Interface(bus.get_object('org.ofono', path),
					'org.ofono.ConnectionManager')

	contexts = connman.GetContexts()

	if (len(contexts) == 0):
		print("No context available")
		sys.exit(1)

	path = contexts[int(sys.argv[1])][0]
	context = dbus.Interface(bus.get_object('org.ofono', path),
					'org.ofono.ConnectionContext')

	try:
		context.SetProperty(sys.argv[2], sys.argv[3])
	except dbus.DBusException as e:
		print("Error setting context %s property %s: %s" %\
				(path, sys.argv[2], str(e)))
		exit(2)
