#!/usr/bin/python

import dbus, sys

def acquire_time_data():
        bus = dbus.SystemBus()

        manager = dbus.Interface(bus.get_object('org.freedesktop.systemd1', '/org/freedesktop/systemd1'), 'org.freedesktop.systemd1.Manager')

        units = manager.ListUnits()

        l = []

        for i in units:
                properties = dbus.Interface(bus.get_object('org.freedesktop.systemd1', i[6]), 'org.freedesktop.DBus.Properties')

                ixt = int(properties.Get('org.freedesktop.systemd1.Unit', 'InactiveExitTimestamp'))
                aet = int(properties.Get('org.freedesktop.systemd1.Unit', 'ActiveEnterTimestamp'))
                axt = int(properties.Get('org.freedesktop.systemd1.Unit', 'ActiveExitTimestamp'))
                iet = int(properties.Get('org.freedesktop.systemd1.Unit', 'InactiveEnterTimestamp'))

                l.append((str(i[0]), ixt, aet, axt, iet))

        return l

if len(sys.argv) <= 1 or sys.argv[1] == 'blame':

        data = acquire_time_data()
        s = sorted(data, key = lambda i: i[2] - i[1], reverse = True)

        for i in s:

                if i[1] <= 0 or i[2] <= 0:
                        continue

                if i[2] <= i[1]:
                        continue

                sys.stdout.write("%6lums %s\n" % ((i[2] - i[1]) / 1000, i[0]))
else:
        sys.stderr.write("Unknown verb '%s'.\n" % sys.argv[1])