# SNMP::Info::Layer3::DigitalChina - SNMP Interface to DigitalChina Devices
#
# Copyright (c) 2020 by 135.

package SNMP::Info::Layer3::DigitalChina;

use strict;
use warnings;
use Exporter;
use SNMP::Info::Layer3;

@SNMP::Info::Layer3::DigitalChina::ISA       = qw/SNMP::Info::Layer3 Exporter/;
@SNMP::Info::Layer3::DigitalChina::EXPORT_OK = qw//;

our ($VERSION, %GLOBALS, %MIBS, %FUNCS, %MUNGE);

$VERSION = '3.70-135';

%MIBS = ( %SNMP::Info::Layer3::MIBS, );

%GLOBALS = (
    %SNMP::Info::Layer3::GLOBALS,
    'model_oid'  => 'mib-2.47.1.1.1.1.2.1',
    'serial_oid' => 'mib-2.47.1.1.1.1.11.1',
    'hw_oid'     => 'mib-2.47.1.1.1.1.8.1',
    'brom_oid'   => 'mib-2.47.1.1.1.1.9.1',
    'os_ver_oid' => 'mib-2.47.1.1.1.1.10.1',
);

%FUNCS = ( %SNMP::Info::Layer3::FUNCS, );

%MUNGE = ( %SNMP::Info::Layer3::MUNGE, );

sub vendor {
    return 'digital-china';
}

sub os {
    return 'snr-os';
}

sub os_ver {
    my $obj = shift;
    my $os_ver = $obj->os_ver_oid || undef;
    my $brom = $obj->brom_oid || undef;


    return $os_ver . ' bootrom:' . $brom
        if defined $os_ver and defined $brom;
    return $os_ver
        if defined $os_ver;
    return 'unknown';
}
sub model {
    my $obj = shift;
    my $model = $obj->model_oid || undef;
    my $hwver = $obj->hwver || undef;

    return $model . ' HW:' . $hwver
        if defined $model and defined $hwver;
    return $model
        if defined $model;
    return $obj->SUPER::model();
}

sub hwver {
    my $obj = shift;
    my $hwver = $obj->hw_oid || undef;

    return $hwver
        if defined $hwver;
}

sub serial {
    my $obj = shift;
    my $serial = $obj->serial_oid || undef;

    return $serial
        if defined $serial;
    return $obj->SUPER::serial();
}

1;
__END__

=head1 NAME

SNMP::Info::Layer3::DigitalChina - SNMP Interface to DigitalChina Devices

=head1 SYNOPSIS

 # Let SNMP::Info determine the correct subclass for you.
 my $obj = new SNMP::Info(
                          AutoSpecify => 1,
                          Debug       => 1,
                          DestHost    => 'myrouter',
                          Community   => 'public',
                          Version     => 2
                        )
    or die "Can't connect to DestHost.\n";

 my $class      = $obj->class();
 print "SNMP::Info determined this device to fall under subclass : $class\n";

=head1 DESCRIPTION

Subclass for DigitalChina Devices

=head2 Inherited Classes

=over

=item SNMP::Info::Layer3

=back

=head2 Inherited Classes' MIBs

See L<SNMP::Info::Layer3/"Required MIBs"> for its own MIB requirements.

=head1 GLOBALS

These are methods that return scalar value from SNMP

=over

=item $obj->vendor()

Returns 'digital-china'

=item $obj->os()

Returns 'snr-os'

=item $obj->os_ver()

Returns the software version.

=item $obj->model()

Returns the model extracted.

=item $obj->serial()

Returns serial number.

=cut

=back