# -*- coding: utf-8 -*-
'''
Network tools to run from the Master, specific to the Claremont MakerSpace
'''

import logging
import socket

log = logging.getLogger(__name__)

def wolmatch(tgt, destport=9):
    '''
    Send a "Magic Packet" to wake up Minions that are matched in the
    grains cache, automatically determining the destination broadcast address

    CLI Example:

    .. code-block:: bash

        salt-run network.wolmatch minion_id

    '''
    ret = []
    minions = __salt__['cache.grains'](tgt, 'compound')
    for name, minion in minions.items():
        if 'hwaddr_interfaces' not in minion:
            continue
        # NOTE: FIVE, NINE, and TEN all should have eth addr as well, why is there only one printed?
        for iface, mac in minion['hwaddr_interfaces'].items():
            if iface == 'lo':
                continue
            mac = mac.strip()
            #print(name, iface, mac, minion['ip_interfaces'])
            if 'ip4_interfaces' in minion and iface in minion['ip_interfaces']:
                ip_addrs = minion['ip4_interfaces'][iface]
                for ip_addr in ip_addrs:
                    [subnet, _, _] = ip_addr.rpartition('.')
                    bcast = subnet + '.255'
                    __salt__['network.wol'](mac, bcast, destport)
                log.info('Waking up %s', mac)
                ret.append(f"{name}: {ip_addrs} {mac}")
    return ret