#!/usr/bin/env python
# -*- coding: utf-8 -*-

# kpov_random_helpers should be imported by add_assignment.py

instructions = {
    'si':u"""
Ustvari tri navidezne racunalnike. Za prvega
uporabi sliko diska simpleArbiterGW, za drugega sliko diska
maliNetworkManager, za tretjega sliko diska maliBrezNetworkManager.
Racunalnike imenujmo enako kot slike diska.
Na maliBrezNetworkManager izklopi networkmanager in uporabljaj konzolo.
Na obeh rocno nastavi IP naslova ter naslova
DNS strežnikov. Naslove dobiš na simpleArbiterGW.
"""
}

computers = {
    'maliNetworkManager': {
        'disks': [
            {   'name': 'maliNetworkManager',
            },
            #{   'name': 'CDROM',
            #    'options':{'readonly': True},
            #    'parts': [],# no parts, no mounting.
            #}
        ],
        'network_interfaces': [{'network': 'net1'}],
        'flavor': 'm1.tiny',
        'config_drive': False

    },
    'maliBrezNetworkManager': {
        'disks': [
            {   'name': 'maliBrezNetworkManager',
            },
            #{   'name': 'CDROM',
            #    'options':{'readonly': True},
            #    'parts': [],# no parts, no mounting.
            #}
        ],
        'network_interfaces': [{'network': 'net1'}],
        'flavor': 'm1.tiny',
        'config_drive': False

    },
    'SimpleArbiter': {
        'disks': [
            {   'name': 'simpleArbiterDhcp',
                # attempt automount
            },
            #{   'name': 'CDROM',
            #    'options': {'readonly': True},
            #    'parts': [{'dev': 'b1', 'path': '/cdrom'}],
            #},
        ],
        'network_interfaces': [{'network': 'net1'}, {'network': 'test-net'}],
        'flavor': 'm1.tiny',
        'config_drive': False
    }
}

networks = { 'net1': {'public': False}, 'test-net': {'public': True} }

params_meta = {
    'IP_NM': {'descriptions': {'si': 'Naslov maliNetworkManager'}, 'w': False, 'public':True, 'type': 'IP', 'generated': True},
    'DNS_NM': {'descriptions': {'si': 'DNS za maliNetworkManager'}, 'w': False, 'public':True, 'type': 'IP', 'generated': True},
    'IP_static': {'descriptions': {'si': 'Naslov maliBrezNetworkManager'}, 'w': False, 'public': True, 'type': 'IP', 'generated': True},
    'DNS_static': {'descriptions': {'si': 'DNS za maliBrezNetworkManager'}, 'w': False, 'public': True, 'type': 'IP', 'generated': True},
}

def task(IP_NM, DNS_NM, IP_static, DNS_static):
    import pxssh
    import pexpect
    results = dict()
    peer_user = 'student'
    peer_passwd = 'vaje'
    sA = pxssh.pxssh()
    sB = pxssh.pxssh()
    sA.login(IP_NM, peer_user, peer_passwd)
    sB.login(IP_static, peer_user, peer_passwd)
    # sA - network manager
    results['NM_nmcli'] = sA.run('nmcli d')
    results['NM_nslookup'] = sA.run('nslookup www.arnes.si')
    # sB - brez network manager
    results['static_nmcli'] = sB.run('nmcli d')
    results['static_nslookup'] = sB.run('nslookup www.arnes.si')
    sA.logout()
    sB.logout()
    return results
    
def gen_params(user_id, params_meta):
    params = dict()
    r = random.Random(user_id)
    # IP_NM, DNS_NM, IP_static, DNS_static)
    dns_servers = ['193.2.1.66', '193.2.1.72', '8.8.8.8', '8.8.4.4', '208.67.222.222', '208.67.220.220']
    net = kpov_random_helpers.IPv4_subnet_gen(r, '172.23.128.0/18', 24)
    params['DNS_NM'] = r.choice(dns_servers)
    params['IP_NM'], params['IP_static'] = kpov_random_helpers.IPv4_addr_gen(r, net, 2)
    params['DNS_static'] = r.choice(dns_servers)
    return params

def task_check(results, params):
    import re
    score = 0
    if results['NM_nslookup'].find(params['DNS_NM']) > -1:
        score += 3
    if results['static_nslookup'].find(params['DNS_static']) > -1:
        score += 3
    if re.search(r'eth0 +802-.*connected', results['NM_nmcli']):
        score += 2
    if not re.search(r'eth0 +802-.*unmanaged', results['static_nmcli']):
        score += 2
    return score

def prepare_disks(templates, params):
#    d = templates['simpleArbiterDhcp']
    pass