package App::Netdisco::Util::PortMAC;

use Dancer qw/:syntax :script/;
use Dancer::Plugin::DBIC 'schema';

use base 'Exporter';
our @EXPORT = ();
our @EXPORT_OK = qw/ get_port_macs /;
our %EXPORT_TAGS = (all => \@EXPORT_OK);

=head1 NAME

App::Netdisco::Util::PortMAC

=head1 DESCRIPTION

Helper subroutine to support parts of the Netdisco application.

There are no default exports, however the C<:all> tag will export all
subroutines.

=head1 EXPORT_OK

=head2 get_port_macs

Returns a Hash reference of C<< { MAC => IP } >> for all interface MAC
addresses on all devices.

If you need to filter for a given device, simply compare the IP (hash value)
to your device's IP.

=cut

sub get_port_macs {
    my $port_macs = {};

    my $dp_macs
        = schema('netdisco')->resultset('DevicePort')
        ->search( { mac => { '!=' => [ -and => (undef, '00:00:00:00:00:00') ] } },
        { select => [ 'mac', 'ip' ],
          group_by => [ 'mac', 'ip' ] } );
    my $dp_cursor = $dp_macs->cursor;
    while ( my @vals = $dp_cursor->next ) {
        $port_macs->{ $vals[0] } = $vals[1];
    }

    my $d_macs
        = schema('netdisco')->resultset('Device')
        ->search( { mac => { '!=' => undef } },
        { select => [ 'mac', 'ip' ] } );
    my $d_cursor = $d_macs->cursor;
    while ( my @vals = $d_cursor->next ) {
        $port_macs->{ $vals[0] } = $vals[1];
    }

    return $port_macs;
}

1;