# This file is part of cloud-init. See LICENSE file for license information.

from cloudinit import log as logging

import cloudinit.net.bsd

from cloudinit import subp

from cloudinit import util

LOG = logging.getLogger(__name__)

class Renderer(cloudinit.net.bsd.BSDRenderer):

    def __init__(self, config=None):

        self._route_cpt = 0

        super(Renderer, self).__init__()

    def rename_interface(self, cur_name, device_name):

        self.set_rc_config_value('ifconfig_%s_name' % cur_name, device_name)

    def write_config(self):

        for device_name, v in self.interface_configurations.items():

            if isinstance(v, dict):

                self.set_rc_config_value(

                    'ifconfig_' + device_name,

                    v.get('address') + ' netmask ' + v.get('netmask'))

            else:

                self.set_rc_config_value('ifconfig_' + device_name, 'DHCP')

    def start_services(self, run=False):

        if not run:

            LOG.debug("freebsd generate postcmd disabled")

            return

        subp.subp(['service', 'netif', 'restart'], capture=True)

        # On FreeBSD 10, the restart of routing and dhclient is likely to fail

        # because

        # - routing: it cannot remove the loopback route, but it will still set

        #   up the default route as expected.

        # - dhclient: it cannot stop the dhclient started by the netif service.

        # In both case, the situation is ok, and we can proceed.

        subp.subp(['service', 'routing', 'restart'], capture=True, rcs=[0, 1])

        for dhcp_interface in self.dhcp_interfaces():

            subp.subp(['service', 'dhclient', 'restart', dhcp_interface],

                      rcs=[0, 1],

                      capture=True)

    def set_route(self, network, netmask, gateway):

        if network == '0.0.0.0':

            self.set_rc_config_value('defaultrouter', gateway)

        else:

            route_name = 'route_net%d' % self._route_cpt

            route_cmd = "-route %s/%s %s" % (network, netmask, gateway)

            self.set_rc_config_value(route_name, route_cmd)

            self._route_cpt += 1

def available(target=None):

    return util.is_FreeBSD()