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


package SNMP::Info::Layer3::Qtech;

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

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

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

$VERSION = '3.70-135';

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

%GLOBALS = (
    %SNMP::Info::Layer3::GLOBALS,
    'hostname'    => 'mib-2.47.1.1.1.1.7.1',
    'model_oid'   => 'mib-2.47.1.1.1.1.13.1',
    'hw_oid'      => 'mib-2.47.1.1.1.1.8.1',
    'serial_oid'  => 'mib-2.47.1.1.1.1.11.1',
    'bootrom_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 main {
    #no strict 'refs';
    my $obj = shift;
    my $response = undef; my $serial = undef; my $model = undef; my $hw = undef; my $os_ver = undef; my $brom = undef;
    if ( $obj->id() =~ /27514\.1\.3\.25\.2$/ ) {
        #QSW-2900 enterprises.27514.1.3.25.2
        $response = $obj->session()->get('enterprises.27514.1.2.1.1.2.2.0');
        $response =~ s/QTECH\s+//;
        ($model, $os_ver) = $response =~ /([\w,\d,-]+)\s([\w,\d]+)$/;
        $hw = $obj->session()->get('enterprises.27514.1.2.1.1.2.8.0');
        $brom =  $obj->session()->get('enterprises.27514.1.2.1.1.2.9.0');
        $serial = $obj->session()->get('enterprises.27514.1.2.1.1.2.19.0');
    }
    elsif ( $obj->id() =~ /27514\.6\.55$/ ) {
        #QSW-2500E enterprises.27514.6.55
        ($os_ver, $model) = $obj->session->get('enterprises.27514.6.1.1.1.1.0') =~ /QOS_([\d,\.]+)\.(QSW[-,\w,\d]+)/;
    }
    else {
        $model = $obj->model_oid;
        $hw = $obj->hw_oid;
        $os_ver = $obj->os_ver_oid;
        $brom = $obj->bootrom_oid;
        $serial = $obj->serial_oid;
    }

    if (not defined($serial) or $serial eq "N/A") {
        #QSW-2800 enterprises.27514.1.1.1.48 could be N/A serial under specific OID.
        #Try to get from Descr.0
        my $descr = $obj->description();
        ($serial) = $descr =~ /Serial\sNo\.:\s*([\d,\w]+)/;
    }

    $model = join ' HW:', ($model, $hw) if defined($model) and defined($hw);
    $os_ver = join ' bootrom:', ($os_ver, $brom) if defined($os_ver) and defined($brom);
    return { 'model' => $model, 'os_ver' => $os_ver, 'serial' => $serial};
}

sub model {
    my $qtech = shift;
    return $qtech->main->{model};
}

sub vendor {
    return 'qtech';
}

sub os {
    return 'qsw';
}

sub os_ver {
    my $qtech = shift;
    return $qtech->main->{os_ver};
}

sub serial {
    my $qtech = shift;
    return $qtech->main->{serial};
}

1;
__END__

=head1 NAME

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

=head1 SYNOPSIS

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

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

=head1 DESCRIPTION

Subclass for Qtech 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 $qtech->model()

Returns the ID or else description.

=item $qtech->vendor()

Returns 'qtech'.

=item $qtech->serial()

Returns serial number.

=item $qtech->fwver()

Returns the firmware version.

=item $qtech->hwver()

Returns the hardware version.

=item $qtech->stp_i_root_port()

Returns the STP root port.

=back

=head2 Globals imported from SNMP::Info::Layer3

See documentation in L<SNMP::Info::Layer3/"GLOBALS"> for details.

=head1 TABLE METHODS

These are methods that return tables of information in the form of a reference
to a hash.

=over

=item $qtech->interfaces();

Returns the map between SNMP Interface Identifier (iid) and C<ifName>.

=back

=head2 Table Methods imported from SNMP::Info::Layer3

See documentation in L<SNMP::Info::Layer3/"TABLE METHODS"> for details.

=cut