#
# Copyright 2021 Centreon (http://www.centreon.com/)
#
# Centreon is a full-fledged industry-strength solution that meets
# the needs in IT infrastructure and application monitoring for
# service performance.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

package network::athonet::epc::snmp::mode::listinterfacesdiameter;

use base qw(centreon::plugins::mode);

use strict;
use warnings;

sub new {
    my ($class, %options) = @_;
    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
    bless $self, $class;
    
    $options{options}->add_options(arguments => {
    });
    return $self;
}

sub check_options {
    my ($self, %options) = @_;
    $self->SUPER::init(%options);
}

my $map_status = { 0 => 'down', 1 => 'up' };
my $map_transport_type = { 0 => 'sctp', 1 => 'tcp', 2 => 'udp' };
my $map_owner = {
    0 => 'unknown', 1 => 'mme', 2 => 'msc', 3 => 'sgsn', 
    4 => 'fgw', 5 => 'wifi', 6 => 'spgw', 7 => 'hlr-hss',
    8 => 'sgw', 9 => 'pgw', 10 => 'pcrf', 11 => 'dpiaf',
    12 => 'aaa', 13 => 'ocs'
};

my $mapping = {
    local_hostname   => { oid => '.1.3.6.1.4.1.35805.10.2.12.2.1.2' }, # iDiameterLocalHostName
    local_realmname  => { oid => '.1.3.6.1.4.1.35805.10.2.12.2.1.3' }, # iDiameterLocalRealmName
    peer_hostname    => { oid => '.1.3.6.1.4.1.35805.10.2.12.2.1.4' }, # iDiameterPeerHostName
    peer_realmname   => { oid => '.1.3.6.1.4.1.35805.10.2.12.2.1.5' }, # iDiameterPeerRealmName
    local_address    => { oid => '.1.3.6.1.4.1.35805.10.2.12.2.1.6' }, # iDiameterLocalAddress
    peer_address     => { oid => '.1.3.6.1.4.1.35805.10.2.12.2.1.7' }, # iDiameterPeerAddress
    transport_type   => { oid => '.1.3.6.1.4.1.35805.10.2.12.2.1.8', map => $map_transport_type }, # iDiameterTransportType
    transport_status => { oid => '.1.3.6.1.4.1.35805.10.2.12.2.1.9', map => $map_status }, # iDiameterTransportState
    status           => { oid => '.1.3.6.1.4.1.35805.10.2.12.2.1.10', map => $map_status }, # iDiameterState
    owner            => { oid => '.1.3.6.1.4.1.35805.10.2.12.2.1.11', map => $map_owner } # iDiameterOwner
};
my $oid_diameterInterfacesEntry = '.1.3.6.1.4.1.35805.10.2.12.2.1';

sub manage_selection {
    my ($self, %options) = @_;

    my $snmp_result = $options{snmp}->get_table(
        oid => $oid_diameterInterfacesEntry,
        start => $mapping->{local_hostname}->{oid},
        end => $mapping->{owner}->{oid},
        nothing_quit => 1
    );

    my $results = {};
    foreach (keys %$snmp_result) {
        next if (! /^$mapping->{local_hostname}->{oid}\.(\d+\.(.*))$/);
        my $instance = $1;
        my $name = $self->{output}->decode(join('', map(chr($_), split(/\./, $2))));

        my $result = $options{snmp}->map_instance(mapping => $mapping, results => $snmp_result, instance => $instance);
        $results->{$name} = $result;
    }

    return $results;
}

sub run {
    my ($self, %options) = @_;

    my $results = $self->manage_selection(snmp => $options{snmp});
    foreach my $name (sort keys %$results) {
        $self->{output}->output_add(long_msg => 
            '[name = ' . $name . ']' . join('', map("[$_ = " . $results->{$name}->{$_} . ']', keys(%$mapping)))
        );
    }

    $self->{output}->output_add(
        severity => 'OK',
        short_msg => 'List diameter interfaces:'
    );
    $self->{output}->display(nolabel => 1, force_ignore_perfdata => 1, force_long_output => 1);
    $self->{output}->exit();
}

sub disco_format {
    my ($self, %options) = @_;

    $self->{output}->add_disco_format(elements => ['name', keys %$mapping]);
}

sub disco_show {
    my ($self, %options) = @_;

    my $results = $self->manage_selection(snmp => $options{snmp});
    foreach (sort keys %$results) {        
        $self->{output}->add_disco_entry(
            name => $_,
            %{$results->{$_}}
        );
    }
}

1;

__END__

=head1 MODE

List diameter interfaces.

=over 8

=back

=cut