#
# Copyright 2020 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 centreon::common::fortinet::fortigate::mode::vdomusage;

use base qw(centreon::plugins::templates::counter);

use strict;
use warnings;
use centreon::plugins::templates::catalog_functions qw(catalog_status_threshold);

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

    my $msg = sprintf("Virtual domains are '%s' on this device", $self->{result_values}->{state});
    return $msg;
}

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

    $self->{result_values}->{state} = $options{new_datas}->{$self->{instance} . '_fgVdEnabled'};
    return 0;
}

sub custom_usage_perfdata {
    my ($self, %options) = @_;
    
    $self->{output}->perfdata_add(label => 'used',
                                  value => $self->{result_values}->{used},
                                  warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-' . $self->{label}, total => $self->{result_values}->{total}, cast_int => 1),
                                  critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-' . $self->{label}, total => $self->{result_values}->{total}, cast_int => 1),
                                  min => 0, max => $self->{result_values}->{total});
}

sub custom_usage_threshold {
    my ($self, %options) = @_;
    
    my ($exit, $threshold_value);
    $threshold_value = $self->{result_values}->{used};
    $threshold_value = $self->{result_values}->{free} if (defined($self->{instance_mode}->{option_results}->{free}));
    if ($self->{instance_mode}->{option_results}->{units} eq '%') {
        $threshold_value = $self->{result_values}->{prct_used};
        $threshold_value = $self->{result_values}->{prct_free} if (defined($self->{instance_mode}->{option_results}->{free}));
    }
    $exit = $self->{perfdata}->threshold_check(value => $threshold_value,
                                               threshold => [ { label => 'critical-' . $self->{label}, exit_litteral => 'critical' },
                                                              { label => 'warning-' . $self->{label}, exit_litteral => 'warning' } ]);
    return $exit;
}

sub custom_usage_output {
    my ($self, %options) = @_;
        
    my $msg = sprintf("Number of virtual domains used: %s/%s (%.2f%%)", $self->{result_values}->{used},
        $self->{result_values}->{total}, $self->{result_values}->{prct_used});
    return $msg;
}

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

    $self->{result_values}->{used} = $options{new_datas}->{$self->{instance} . '_fgVdNumber'};
    $self->{result_values}->{total} = $options{new_datas}->{$self->{instance} . '_fgVdMaxVdoms'};
    $self->{result_values}->{free} = $self->{result_values}->{total} - $self->{result_values}->{used};
    $self->{result_values}->{prct_used} = $self->{result_values}->{used} * 100 / $self->{result_values}->{total};
    $self->{result_values}->{prct_free} = 100 - $self->{result_values}->{prct_used};

    return 0;
}

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

    $self->{maps_counters_type} = [
        { name => 'global', type => 0 },
    ];
    $self->{maps_counters}->{global} = [
        { label => 'status', threshold => 0,  set => {
                key_values => [ { name => 'fgVdEnabled' } ],
                closure_custom_calc => $self->can('custom_status_calc'),
                closure_custom_output => $self->can('custom_status_output'),
                closure_custom_perfdata => sub { return 0; },
                closure_custom_threshold_check => \&catalog_status_threshold,
            }
        },
        { label => 'usage', set => {
                key_values => [ { name => 'fgVdNumber' }, { name => 'fgVdMaxVdoms' } ],
                closure_custom_calc => $self->can('custom_usage_calc'),
                closure_custom_output => $self->can('custom_usage_output'),
                closure_custom_perfdata => $self->can('custom_usage_perfdata'),
                closure_custom_threshold_check => $self->can('custom_usage_threshold'),
            }
        },
    ];
}

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

    $options{options}->add_options(arguments =>
                                {
                                    "warning-status:s"          => { name => 'warning_status', default => '%{state} eq "disabled"' },
                                    "critical-status:s"         => { name => 'critical_status', default => '' },
                                    "units:s"                   => { name => 'units', default => '%' },
                                    "free"                      => { name => 'free' },
                                });
    return $self;
}

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

    $self->change_macros(macros => ['warning_status', 'critical_status']);
}

my %map_state = (
    1 => 'disabled',
    2 => 'enabled',
);

my $mapping = {
    fgVdNumber => { oid => '.1.3.6.1.4.1.12356.101.3.1.1' },
    fgVdMaxVdoms => { oid => '.1.3.6.1.4.1.12356.101.3.1.2' },
    fgVdEnabled => { oid => '.1.3.6.1.4.1.12356.101.3.1.3', map => \%map_state },
};

my $oid_fgVdInfo = '.1.3.6.1.4.1.12356.101.3.1';

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

    $self->{global} = {};

    $self->{results} = $options{snmp}->get_table(oid => $oid_fgVdInfo , nothing_quit => 1);

    my $result = $options{snmp}->map_instance(mapping => $mapping, results => $self->{results}, instance => 0);
    
    $self->{global} = {%{$result}};
}

1;

__END__

=head1 MODE

Check virtual domains activation and slots usage.

=over 8

=item B<--warning-status>

Set warning threshold for status (Default: '%{state} eq "disabled"').
Can used special variables like: %{state}

=item B<--critical-status>

Set critical threshold for status (Default: '').
Can used special variables like: %{state}

=item B<--warning-usage>

Threshold warning.

=item B<--critical-usage>

Threshold critical.

=item B<--units>

Units of thresholds (Default: '%') ('%', 'count').

=item B<--free>

Thresholds are on free virtual domain slots.

=back

=cut