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

# TODO: dokoncaj!
# kpov_random_helpers should be imported by add_assignment.py

instructions = {
    'si':u"""
Postavi štiri navidezne računalnike - simpleArbiter, DHCP_server,
BootableClientA ter BootableClientB. Na simpleArbiter preberi naslove IP_GW, IP_DHCP,
IP_B ter najdi datoteko A.

Na DHCP_server postavi DHCP strežnik s pomočjo ISC dhcp 3 na naslovu IP_DHCP.
SimpleArbiter naj dobi IP_GW. DHCP_server naj ga uporabi kot gateway.
Če se zaganja BootableClientB, naj se sistem zažene z live ISO in dobi svoj IP.
Če se zaganja katerikoli drug, naj se sistem zažene v datoteko z imenom A.
Tako BootableClientA kot BootableClientB naj bosta brez diskov.
"""
}

computers = {
    'DHCPServer': {
        'disks': [
            {   'name': 'DHCPServer',
            },
            {   'name': 'bootable_iso',
                'options':{'readonly': True},
                'parts': [],
            },
            #{   'name': 'CDROM',
            #    'options':{'readonly': True},
            #    'parts': [],# no parts, no mounting.
            #}
        ],
        'network_interfaces': [{'network': 'net1'}],
        'flavor': 'm1.tiny',
        'config_drive': False
    },
    'BootableClientA': {
        'disks': [
        ],
        'network_interfaces': [{'network': 'net1'}],
        'flavor': 'm1.tiny',
        'config_drive': False
    },
    'BootableClientB': {
        'disks': [
        ],
        'network_interfaces': [{'network': 'net1'}],
        'flavor': 'm1.tiny',
        'config_drive': False
    },
    'SimpleArbiter': {
        'disks': [
            {   'name': 'simpleArbiterDhcp',
            },
            #{   '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_DHCP': {'descriptions': {'si': 'IP DHCP streznika'}, 'w': False, 'public': True, 'type':'IP', 'generated': True},
    'IP_GW': {'descriptions': {'si': 'IP SimpleArbiterja'}, 'w': False, 'public': True, 'type':'IP', 'generated': True},
    'MAC_BOOT': {'descriptions': {'si': 'MAC racunalnika, ki se zazene z ISO'}, 'w': True, 'public': True, 'type':'MAC', 'generated': False},
    'IP_BOOT': {'descriptions': {'si': 'IP racunalnika, ki se zazene z ISO'}, 'w': True, 'public': True, 'type':'IP', 'generated': False},
    'BOOT_FNAME': {'descriptions': {'si': 'Ime datoteke'}, 'w': False, 'public': True, 'type': 'filename', 'generated': True},
}

def task(IP_DHCP, IP_GW, MAC_BOOT, BOOT_FNAME):
    # check the IP
    # ping the DHCP server
    # check whether the fname served by the dhcp server is correct
    # connect to the service in the special ISO
    # check the MAC of the server on IP_BOOT
    return results
    
def gen_params(user_id, params_meta):
    params = dict()
    r = random.Random(user_id)
    net = kpov_random_helpers.IPv4_subnet_gen(r, '10.75.0.0/10', 24)
    params['IP_DHCP'], params['IP_GW'] = kpov_random_helpers.IPv4_addr_gen(r, net, 2)
    params['BOOT_FNAME'] = kpov_random_helpers.filename_gen(r)
    # IP_NM, DNS_NM, IP_static, DNS_static)
    return params

def task_check(results, params):
    import re
    score = -9
    if results['NM_nslookup'].find('Server:\t\t{0}\r'.format(params['DNS_NM'])) > -1:
        score += 3
    if results['static_nslookup'].find('Server:\t\t{0}\r'.format(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-.*connected', results['static_nmcli']):
        score += 2
    score = 0
    return score

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