move nbtstat and nbtwalk to worker plugins

lib/App/Netdisco/Worker/Plugin/Nbtstat/Core.pm

@@ -0,0 +1,50 @@
+package App::Netdisco::Worker::Plugin::Nbtstat::Core;
+
+use Dancer ':syntax';
+use App::Netdisco::Worker::Plugin;
+use aliased 'App::Netdisco::Worker::Status';
+
+use App::Netdisco::Util::Nbtstat qw/nbtstat_resolve_async store_nbt/;
+use App::Netdisco::Util::Node 'is_nbtstatable';
+use Dancer::Plugin::DBIC 'schema';
+use Time::HiRes 'gettimeofday';
+
+register_worker({ primary => true }, sub {
+  my ($job, $workerconf) = @_;
+  my $host = $job->device->ip;
+
+  # get list of nodes on device
+  my $interval = (setting('nbtstat_max_age') || 7) . ' day';
+  my $rs = schema('netdisco')->resultset('NodeIp')->search({
+    -bool => 'me.active',
+    -bool => 'nodes.active',
+    'nodes.switch' => $host,
+    'me.time_last' => \[ '>= now() - ?::interval', $interval ],
+  },{
+    join => 'nodes',
+    columns => 'ip',
+    distinct => 1,
+  })->ip_version(4);
+
+  my @ips = map {+{'ip' => $_}}
+            grep { is_nbtstatable( $_ ) }
+            $rs->get_column('ip')->all;
+
+  # Unless we have IPs don't bother
+  if (scalar @ips) {
+    my $now = 'to_timestamp('. (join '.', gettimeofday) .')';
+    my $resolved_nodes = nbtstat_resolve_async(\@ips);
+
+    # update node_nbt with status entries
+    foreach my $result (@$resolved_nodes) {
+      if (defined $result->{'nbname'}) {
+        store_nbt($result, $now);
+      }
+    }
+  }
+
+  return Status->done("Ended nbtstat for $host");
+});
+
+true;
+