repo.libs.tools.require_bundle(node, 'postgresql')
repo.libs.tools.require_bundle(node, 'sshmon')

from os.path import join

ENABLED_FEATURES = {
    'api',
    'checker',
    'command',
    'ido-pgsql',
    'mainlog',
    'notification',
}

DAYS_TO_STRING = [
    'sunday',
    'monday',
    'tuesday',
    'wednesday',
    'thursday',
    'friday',
    'saturday',
    'sunday',
]

directories = {
    '/etc/icingaweb2': {
        'group': 'icingaweb2',
        'mode': '2770',
        'needs': {
            'pkg_apt:icingaweb2',
        },
    },
    '/etc/icinga2/features-enabled': {
        'owner': 'nagios',
        'group': 'nagios',
        'mode': '0750',
        'purge': True,
        'needs': {
            'pkg_apt:icinga2-ido-pgsql',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
    '/etc/icinga2/conf.d': {
        'owner': 'nagios',
        'group': 'nagios',
        'mode': '0750',
        'purge': True,
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
    '/etc/icinga2/conf.d/hosts': {
        'owner': 'nagios',
        'group': 'nagios',
        'mode': '0750',
        'purge': True,
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
}

files = {
    ### Checks
    '/usr/local/share/icinga/plugins/check_by_sshmon': {
        'mode': '0755',
    },
    '/usr/local/share/icinga/plugins/check_sipgate_account_balance': {
        'mode': '0755',
    },
    '/usr/local/share/icinga/plugins/check_freifunk_node': {
        'mode': '0755',
    },
    '/usr/local/share/icinga/plugins/check_imap_for_mail_from': {
        'mode': '0755',
    },
    '/usr/local/share/icinga/plugins/check_spam_blocklist': {
        'mode': '0755',
    },
    '/usr/local/share/icinga/plugins/check_usv_snmp': {
        'mode': '0755',
    },
    '/etc/sshmon.priv': {
        'content': repo.vault.decrypt_file(join('sshmon', 'sshmon.key.vault')),
        'owner': 'nagios',
        'group': 'nagios',
        'mode': '0400',
        'needs': {
            'pkg_apt:icinga2-ido-pgsql',
        },
    },

    # Icinga2
    '/etc/icinga2/icinga2.conf': {
        'source': 'icinga2/icinga2.conf',
        'owner': 'nagios',
        'group': 'nagios',
        'mode': '0640',
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
    '/etc/icinga2/notification_config.json': {
        'content': repo.libs.faults.dict_as_json({
            'sipgate': {
                'user': node.metadata.get('icinga2/sipgate/user'),
                'password': node.metadata.get('icinga2/sipgate/pass'),
            },
            'ntfy': {
                'url': node.metadata.get('icinga2/ntfy/url'),
                'user': node.metadata.get('icinga2/ntfy/user'),
                'password': node.metadata.get('icinga2/ntfy/pass'),
            },
        }),
    },
    '/etc/icinga2/scripts/icinga_notification_wrapper': {
        'source': 'scripts/icinga_notification_wrapper',
        'mode': '0755',
    },
    '/etc/icinga2/features-available/ido-pgsql.conf': {
        'source': 'icinga2/ido-pgsql.conf',
        'content_type': 'mako',
        'owner': 'nagios',
        'group': 'nagios',
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
    '/etc/icinga2/conf.d/api-users.conf': {
        'source': 'icinga2/api-users.conf',
        'content_type': 'mako',
        'owner': 'nagios',
        'group': 'nagios',
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
    '/etc/icinga2/conf.d/app.conf': {
        'source': 'icinga2/app.conf',
        'owner': 'nagios',
        'group': 'nagios',
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
    '/etc/icinga2/conf.d/check_commands.conf': {
        'source': 'icinga2/check_commands.conf',
        'owner': 'nagios',
        'group': 'nagios',
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
    '/etc/icinga2/conf.d/hosts.conf': {
        'source': 'icinga2/hosts.conf',
        'owner': 'nagios',
        'group': 'nagios',
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
    '/etc/icinga2/conf.d/notification_commands.conf': {
        'source': 'icinga2/notification_commands.conf',
        'owner': 'nagios',
        'group': 'nagios',
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
    '/etc/icinga2/conf.d/notifications.conf': {
        'source': 'icinga2/notifications.conf',
        'owner': 'nagios',
        'group': 'nagios',
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
    '/etc/icinga2/conf.d/templates.conf': {
        'source': 'icinga2/templates.conf',
        'owner': 'nagios',
        'group': 'nagios',
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
    '/etc/icinga2/conf.d/timeperiods.conf': {
        'source': 'icinga2/timeperiods.conf',
        'owner': 'nagios',
        'group': 'nagios',
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
    '/etc/icinga2/conf.d/users.conf': {
        'source': 'icinga2/users.conf',
        'owner': 'nagios',
        'group': 'nagios',
        'content_type': 'mako',
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },

    # IcingaWeb2
    '/etc/icingaweb2/authentication.ini': {
        'source': 'icingaweb2/authentication.ini',
        'mode': '0660',
        'group': 'icingaweb2',
    },
    '/etc/icingaweb2/config.ini': {
        'source': 'icingaweb2/config.ini',
        'mode': '0660',
        'group': 'icingaweb2',
    },
    '/etc/icingaweb2/modules/monitoring/config.ini': {
        'source': 'icingaweb2/monitoring_config.ini',
        'mode': '0660',
        'group': 'icingaweb2',
    },
    '/etc/icingaweb2/groups.ini': {
        'source': 'icingaweb2/groups.ini',
        'mode': '0660',
        'group': 'icingaweb2',
    },
    '/etc/icingaweb2/resources.ini': {
        'source': 'icingaweb2/resources.ini',
        'content_type': 'mako',
        'mode': '0660',
        'group': 'icingaweb2',
    },
    '/etc/icingaweb2/roles.ini': {
        'source': 'icingaweb2/roles.ini',
        'mode': '0660',
        'group': 'icingaweb2',
    },

    # monitoring
    '/etc/icinga2/icinga_statusmonitor.py': {
        'triggers': {
            'svc_systemd:icinga_statusmonitor:restart',
        },
    },
    '/usr/local/lib/systemd/system/icinga_statusmonitor.service': {
        'triggers': {
            'action:systemd-reload',
            'svc_systemd:icinga_statusmonitor:restart',
        },
    },
}

svc_systemd['icinga_statusmonitor'] = {
    'needs': {
        'file:/etc/icinga2/icinga_statusmonitor.py',
        'file:/usr/local/lib/systemd/system/icinga_statusmonitor.service',
        'pkg_apt:python3-flask',
    },
}

actions = {
    'icinga2_api_setup': {
        'command': 'icinga2 api setup',
        'unless': 'test -e /var/lib/icinga2/certs/{}.crt'.format(node.metadata['hostname']),
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    },
}

for feature in ENABLED_FEATURES:
    symlinks[f'/etc/icinga2/features-enabled/{feature}.conf'] = {
        'target': f'/etc/icinga2/features-available/{feature}.conf',
        'owner': 'nagios',
        'group': 'nagios',
        'needs': {
            'pkg_apt:icinga2',
        },
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    }

icinga_run_deps = {
    'pkg_apt:icinga2',
    'pkg_apt:icinga2-ido-pgsql',
}
for name in actions:
    icinga_run_deps.add(f'action:{name}')
for name in directories:
    icinga_run_deps.add(f'directory:{name}')
for name in files:
    icinga_run_deps.add(f'file:{name}')
for name in symlinks:
    icinga_run_deps.add(f'symlink:{name}')

svc_systemd['icinga2'] = {
    'needs': icinga_run_deps,
}



# The actual hosts and services management starts here
bundles = set()
downtimes = []
for rnode in sorted(repo.nodes):
    if rnode.metadata.get('icinga_options/exclude_from_monitoring', False):
        continue

    host_ips = repo.libs.tools.resolve_identifier(repo, rnode.name, only_physical=True)
    icinga_ips = {}

    for ip_type in ('ipv4', 'ipv6'):
        for ip in sorted(host_ips[ip_type]):
            if ip.is_private and not ip.is_link_local:
                icinga_ips[ip_type] = str(ip)
                break
        else:
            if host_ips[ip_type]:
                icinga_ips[ip_type] = sorted(host_ips[ip_type])[0]

    if not icinga_ips:
        raise ValueError(f'{rnode.name} requests monitoring, but has neither IPv4 nor IPv6 addresses!')

    files[f'/etc/icinga2/conf.d/hosts/{rnode.name}.conf'] = {
        'source': 'icinga2/hosts_template.conf',
        'content_type': 'mako',
        'context': {
            'rnode': rnode,
            'address4': icinga_ips.get('ipv4', None),
            'address6': icinga_ips.get('ipv6', None),
        },
        'owner': 'nagios',
        'group': 'nagios',
        'cascade_skip': False, # may contain faults
        'triggers': {
            'svc_systemd:icinga2:restart',
        },
    }

    bundles |= set(rnode.metadata.get('icinga2_api', {}).keys())

    if rnode.has_any_bundle(['apt', 'c3voc-addons']):
        day = rnode.metadata.get('apt/unattended-upgrades/day')
        hour = rnode.metadata.get('apt/unattended-upgrades/hour')
        minute = rnode.magic_number%30

        spread = rnode.metadata.get('apt/unattended-upgrades/spread_in_group', None)
        if spread is not None:
            spread_nodes = sorted(repo.nodes_in_group(spread))
            day += spread_nodes.index(rnode)

        downtimes.append({
            'name': 'unattended-upgrades',
            'host': rnode.name,
            'comment': f'Downtime for upgrade-and-reboot of node {rnode.name}',
            'times': {
                DAYS_TO_STRING[day%7]: f'{hour}:{minute}-{hour}:{minute+15}',
            },
        })
    elif (
        rnode.has_bundle('pacman')
        and rnode.metadata.get('pacman/unattended-upgrades/is_enabled', False)
    ):
        day = rnode.metadata.get('pacman/unattended-upgrades/day')
        hour = rnode.metadata.get('pacman/unattended-upgrades/hour')
        minute = rnode.magic_number%30

        downtimes.append({
            'name': 'unattended-upgrades',
            'host': rnode.name,
            'comment': f'Downtime for upgrade-and-reboot of node {rnode.name}',
            'times': {
                DAYS_TO_STRING[day%7]: f'{hour}:{minute}-{hour}:{minute+15}',
            },
        })

files['/etc/icinga2/conf.d/groups.conf'] = {
    'source': 'icinga2/groups.conf',
    'content_type': 'mako',
    'context': {
        'bundles': bundles,
    },
    'owner': 'nagios',
    'group': 'nagios',
    'needs': {
        'pkg_apt:icinga2',
    },
    'triggers': {
        'svc_systemd:icinga2:restart',
    },
}

files['/etc/icinga2/conf.d/downtimes.conf'] = {
    'source': 'icinga2/downtimes.conf',
    'content_type': 'mako',
    'context': {
        'downtimes': downtimes,
    },
    'owner': 'nagios',
    'group': 'nagios',
    'needs': {
        'pkg_apt:icinga2',
    },
    'triggers': {
        'svc_systemd:icinga2:restart',
    },
}