#
# Copyright 2018 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 apps::antivirus::kaspersky::snmp::mode::updates;

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

use strict;
use warnings;
use DateTime;

my $instance_mode;

sub custom_status_threshold {
    my ($self, %options) = @_;
    my $status = 'ok';
    my $message;

    eval {
        local $SIG{__WARN__} = sub { $message = $_[0]; };
        local $SIG{__DIE__} = sub { $message = $_[0]; };

        if (defined($instance_mode->{option_results}->{critical_status}) && $instance_mode->{option_results}->{critical_status} ne '' &&
            eval "$instance_mode->{option_results}->{critical_status}") {
            $status = 'critical';
        } elsif (defined($instance_mode->{option_results}->{warning_status}) && $instance_mode->{option_results}->{warning_status} ne '' &&
            eval "$instance_mode->{option_results}->{warning_status}") {
            $status = 'warning';
        }
    };
    if (defined($message)) {
        $self->{output}->output_add(long_msg => 'filter status issue: ' . $message);
    }

    return $status;
}

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

    my $msg = sprintf("Updates status is '%s'", $self->{result_values}->{status});
    return $msg;
}

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

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

sub custom_last_perfdata {
    my ($self, %options) = @_;
    
    $self->{output}->perfdata_add(label => 'last_server_update',
                                  value => $self->{result_values}->{diff},
                                  unit => 's',
                                  min => 0);
}

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

    my $exit = $self->{perfdata}->threshold_check(value => $self->{result_values}->{diff},
                                                  threshold => [ { label => 'critical-' . $self->{label}, exit_litteral => 'critical' },
                                                                 { label => 'warning-' . $self->{label}, exit_litteral => 'warning' } ]);
    return $exit;
}

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

    my $msg = sprintf("Last server update: %s [%s]", centreon::plugins::misc::change_seconds(value => $self->{result_values}->{diff}), $self->{result_values}->{date_time});
    return $msg;
}

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

    my $time = $options{new_datas}->{$self->{instance} . '_lastServerUpdateTime'};
    #2018-3-30,7:43:58.0
    if ($time =~ /^\s*(\d+)-(\d+)-(\d+),(\d+):(\d+):(\d+)\.(\d+)/) {
        my $dt = DateTime->new(
            year       => $1,
            month      => $2,
            day        => $3,
            hour       => $4,
            minute     => $5,
            second     => $6,
            time_zone  => $instance_mode->{option_results}->{timezone},
        );
        $self->{result_values}->{diff} = time() - $dt->epoch;
        $self->{result_values}->{date_time} = $dt->datetime();
    }

    return 0;
}

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

    $self->{maps_counters_type} = [
        { name => 'global', type => 0, message_separator => ' - ' },
    ];

    $self->{maps_counters}->{global} = [
        { label => 'status', set => {
                key_values => [ { name => 'updatesStatus' } ],
                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 => $self->can('custom_status_threshold'),
            }
        },
        { label => 'last-server-update', set => {
                key_values => [ { name => 'lastServerUpdateTime' } ],
                closure_custom_calc => $self->can('custom_last_calc'),
                closure_custom_output => $self->can('custom_last_output'),
                closure_custom_threshold_check => $self->can('custom_last_threshold'),
                closure_custom_perfdata => $self->can('custom_last_perfdata'),
            }
        },
        { label => 'not-updated', set => {
                key_values => [ { name => 'hostsNotUpdated' } ],
                output_template => '%d host(s) not up to date',
                perfdatas => [
                    { label => 'not_updated', value => 'hostsNotUpdated_absolute', template => '%d', min => 0 },
                ],
            }
        },
    ];
}

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

    $self->{version} = '1.0';
    $options{options}->add_options(arguments =>
                                {
                                    "warning-status:s"      => { name => 'warning_status', default => '%{status} =~ /Warning/i' },
                                    "critical-status:s"     => { name => 'critical_status', default => '%{status} =~ /Critical/i' },
                                    "timezone:s"            => { name => 'timezone', default => 'GMT' },
                                });
    return $self;
}

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

    foreach ('warning_status', 'critical_status') {
        if (defined($self->{option_results}->{$_})) {
            $self->{option_results}->{$_} =~ s/%\{(.*?)\}/\$self->{result_values}->{$1}/g;
        }
    }
}

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

    $instance_mode = $self;
    $self->change_macros();
}

my %map_status = (
    0 => 'OK',
    1 => 'Info',
    2 => 'Warning',
    3 => 'Critical',
);

my $oid_updatesStatus = '.1.3.6.1.4.1.23668.1093.1.2.1';
my $oid_lastServerUpdateTime = '.1.3.6.1.4.1.23668.1093.1.2.3';
my $oid_hostsNotUpdated = '.1.3.6.1.4.1.23668.1093.1.2.4';

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

    my $snmp_result = $options{snmp}->get_leef(oids => [ $oid_updatesStatus, $oid_lastServerUpdateTime,
                                                         $oid_hostsNotUpdated ], 
                                               nothing_quit => 1);
                                               
    $self->{global} = {};

    $self->{global} = { 
        updatesStatus => $map_status{$snmp_result->{$oid_updatesStatus}},
        lastServerUpdateTime => $snmp_result->{$oid_lastServerUpdateTime},
        hostsNotUpdated => $snmp_result->{$oid_hostsNotUpdated},
    };
}

1;

__END__

=head1 MODE

Check updates status.

=over 8

=item B<--warning-status>

Set warning threshold for status. (Default: '%{status} =~ /Warning/i').
Can use special variables like: %{status}

=item B<--critical-status>

Set critical threshold for status. (Default: '%{status} =~ /Critical/i').
Can use special variables like: %{status}

=item B<--warning-*>

Threshold warning.
Can be: 'last-server-update', 'not-updated'.

=item B<--critical-*>

Threshold critical.
Can be: 'last-server-update', 'not-updated'.

=item B<--timezone>

Timezone options. Default is 'GMT'.

=back

=cut