#
# 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 apps::bluemind::mode::incoming;

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

use strict;
use warnings;
use centreon::plugins::http;
use centreon::plugins::statefile;
use JSON;

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

    $options{options}->add_options(arguments => {
        "hostname:s"        => { name => 'hostname' },
        "port:s"            => { name => 'port', default => '8086'},
        "proto:s"           => { name => 'proto' },
        "urlpath:s"         => { name => 'url_path', default => "/db" },
        "database:s"        => { name => 'database' },
        "username:s"        => { name => 'username' },
        "password:s"        => { name => 'password' },
        "timeout:s"         => { name => 'timeout' },
        "warning:s"         => { name => 'warning' },
        "critical:s"        => { name => 'critical' },
    });

    $self->{statefile_value} = centreon::plugins::statefile->new(%options);
    $self->{http} = centreon::plugins::http->new(%options);
    return $self;
}

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

    if (($self->{perfdata}->threshold_validate(label => 'warning', value => $self->{option_results}->{warning})) == 0) {
        $self->{output}->add_option_msg(short_msg => "Wrong warning threshold '" . $self->{option_results}->{warning} . "'.");
        $self->{output}->option_exit();
    }
    if (($self->{perfdata}->threshold_validate(label => 'critical', value => $self->{option_results}->{critical})) == 0) {
        $self->{output}->add_option_msg(short_msg => "Wrong critical threshold '" . $self->{option_results}->{critical} . "'.");
        $self->{output}->option_exit();
    }
    if (!defined($self->{option_results}->{database})) {
        $self->{output}->add_option_msg(short_msg => "Please set the database option");
        $self->{output}->option_exit();
    }
    if ((!defined($self->{option_results}->{username}) || !defined($self->{option_results}->{password}))) {
        $self->{output}->add_option_msg(short_msg => "You need to set --username= and --password= option");
        $self->{output}->option_exit();
    }
    
    my $query = 'select sum("success") as "success_sum", sum("failure") as "failure_sum" from lmtpd.deliveries where time > '.$old_timestamp.'s and time < now()';
    $self->{option_results}->{url_path} = $self->{option_results}->{url_path}."/".$self->{option_results}->{database}."/series";
    $self->{option_results}->{get_param} = [];
    push @{$self->{option_results}->{get_param}}, "q=" . $query, "p=" . $self->{option_results}->{password}, "u=" . $self->{option_results}->{username};

    $self->{http}->set_options(%{$self->{option_results}});
    $self->{statefile_value}->check_options(%options);
}

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

    $self->{statefile_value}->read(statefile => 'bluemind_' . $self->{option_results}->{hostname}  . '_' . $self->{http}->get_port() . '_' . $self->{mode});
    my $old_timestamp = $self->{statefile_value}->get(name => 'last_timestamp');

    my $new_datas = {};
    $new_datas->{last_timestamp} = time();
    $self->{statefile_value}->write(data => $new_datas);

    if (!defined($old_timestamp)) {
        $self->{output}->output_add(severity => 'OK',
                                    short_msg => "Buffer creation...");
        $self->{output}->display();
        $self->{output}->exit();
    }

    my $jsoncontent = $self->{http}->request();

    my $json = JSON->new;
    my $webcontent;

    eval {
        $webcontent = $json->decode($jsoncontent);
    };

    if ($@) {
        $self->{output}->add_option_msg(short_msg => "Cannot decode json response");
        $self->{output}->option_exit();
    }

    my $hwebcontent;
    for my $ref (@{ $webcontent }) {
        my $name = $ref->{name};
        my @columns = @{ $ref->{columns} };

        for my $points (@{ $ref->{points} }) {
            my %hash;
            @hash{ @columns } = @$points;
            push @{ $hwebcontent->{$name} }, \%hash;
        }
    }

    my $success_incoming_mails = defined($hwebcontent->{qw(lmtpd.deliveries)}->[0]->{success_sum}) ? $hwebcontent->{qw(lmtpd.deliveries)}->[0]->{success_sum} : '0';
    my $failure_incoming_mails = defined($hwebcontent->{qw(lmtpd.deliveries)}->[0]->{failure_sum}) ? $hwebcontent->{qw(lmtpd.deliveries)}->[0]->{failure_sum} : '0';

    # If not present: failure and success incoming mails are 0
    if (!defined($success_incoming_mails)) {
        $success_incoming_mails = 0;
    }

    if (!defined($failure_incoming_mails)) {
        $failure_incoming_mails = 0;
    }

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

    $self->{output}->output_add(severity => $exit,
        short_msg => sprintf("Success Incoming Mails: %d - Failure Incoming Mails: %d",$success_incoming_mails,$failure_incoming_mails));
    $self->{output}->perfdata_add(label => 'success',
        value => sprintf("%d", $success_incoming_mails),
        min => 0,
    );
    $self->{output}->perfdata_add(label => 'failure',
          value => sprintf("%d", $failure_incoming_mails),
          warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning'),
          critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical'),
          min => 0,
    );

    $self->{output}->display();
    $self->{output}->exit();

}

1;

__END__

=head1 MODE

Check Bluemind incoming_mails (success and failure)

=over 8

=item B<--hostname>

IP Addr/FQDN of the Bluemind host

=item B<--port>

Port used by InfluxDB API (Default: '8086')

=item B<--proto>

Specify https if needed (Default: 'http')

=item B<--urlpath>

Set path to get influxdb information (Default: '/db')

=item B<--database>

InfluxDB Database name

=item B<--username>

Specify username for API authentification

=item B<--password>

Specify password for API authentification

=item B<--timeout>

Threshold for HTTP timeout (Default: 5)

=item B<--warning>

Warning Threshold for failure incoming mails

=item B<--critical>

Critical Threshold for failure incoming mails

=back

=cut
