#
# 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 os::aix::local::mode::inodes;

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

use strict;
use warnings;
use centreon::plugins::misc;

sub set_counters {
    my ($self, %options) = @_;
    
    $self->{maps_counters_type} = [
        { name => 'inodes', type => 1, cb_prefix_output => 'prefix_inodes_output', message_multiple => 'All inode partitions are ok' }
    ];
    
    $self->{maps_counters}->{inodes} = [
        { label => 'usage', set => {
                key_values => [ { name => 'used' }, { name => 'display' } ],
                output_template => 'Used: %s %%',
                perfdatas => [
                    { label => 'used', value => 'used_absolute', template => '%d',
                      unit => '%', min => 0, max => 100, label_extra_instance => 1, instance_use => 'display_absolute' },
                ],
            }
        },
    ];
}

sub prefix_inodes_output {
    my ($self, %options) = @_;
    
    return "Inodes partition '" . $options{instance_value}->{display} . "' ";
}

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' },
        "remote"              => { name => 'remote' },
        "ssh-option:s@"       => { name => 'ssh_option' },
        "ssh-path:s"          => { name => 'ssh_path' },
        "ssh-command:s"       => { name => 'ssh_command', default => 'ssh' },
        "timeout:s"           => { name => 'timeout', default => 30 },
        "sudo"                => { name => 'sudo' },
        "command:s"           => { name => 'command', default => 'df' },
        "command-path:s"      => { name => 'command_path' },
        "command-options:s"   => { name => 'command_options', default => '-i -v 2>&1' },
        "filter-fs:s"         => { name => 'filter_fs', },
        "name:s"              => { name => 'name' },
        "regexp"              => { name => 'use_regexp' },
        "regexp-isensitive"   => { name => 'use_regexpi' },
    });
    
    return $self;
}

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

    my ($stdout, $exit_code) = centreon::plugins::misc::execute(
        output => $self->{output},
        options => $self->{option_results},
        sudo => $self->{option_results}->{sudo},
        command => $self->{option_results}->{command},
        command_path => $self->{option_results}->{command_path},
        command_options => $self->{option_results}->{command_options},
        no_quit => 1
    );
    $self->{inodes} = {};
    my @lines = split /\n/, $stdout;
    # Header not needed
    shift @lines;
    foreach my $line (@lines) {
        # Can be very different.
        #Filesystem    512-blocks      Used      Free %Used    Iused    Ifree %Iused Mounted on
        #/dev/hd4         1048576    118408    930168   12%     3699   104325     4% /
        #
        #Filesystem 512-blocks Free   %Used   Iused  %Iused  Mounted on
        #/dev/hd0    19368     9976    48%     4714    5%     /
        
        next if ($line !~ /^(\S+)/);
        my $fs = $1;
        next if ($line !~ /(\d+)%\s+([^%]*?)$/);
        my ($ipercent, $mount) = ($1, $2);
                
        next if (defined($self->{option_results}->{filter_fs}) && $self->{option_results}->{filter_fs} ne '' &&
                 $fs !~ /$self->{option_results}->{filter_fs}/);
        
        next if (defined($self->{option_results}->{name}) && defined($self->{option_results}->{use_regexp}) && defined($self->{option_results}->{use_regexpi}) 
            && $mount !~ /$self->{option_results}->{name}/i);
        next if (defined($self->{option_results}->{name}) && defined($self->{option_results}->{use_regexp}) && !defined($self->{option_results}->{use_regexpi}) 
            && $mount !~ /$self->{option_results}->{name}/);
        next if (defined($self->{option_results}->{name}) && !defined($self->{option_results}->{use_regexp}) && !defined($self->{option_results}->{use_regexpi})
            && $mount ne $self->{option_results}->{name});
        
        $self->{inodes}->{$mount} = { display => $mount, used => $ipercent };
    }
    
    if (scalar(keys %{$self->{inodes}}) <= 0) {
        if ($exit_code != 0) {
            $self->{output}->output_add(long_msg => "command output:" . $stdout);
        }
        $self->{output}->add_option_msg(short_msg => "No storage found (filters or command issue)");
        $self->{output}->option_exit();
    }
}

1;

__END__

=head1 MODE

Check inodes usage on partitions.

=over 8

=item B<--remote>

Execute command remotely in 'ssh'.

=item B<--hostname>

Hostname to query (need --remote).

=item B<--ssh-option>

Specify multiple options like the user (example: --ssh-option='-l=centreon-engine' --ssh-option='-p=52').

=item B<--ssh-path>

Specify ssh command path (default: none)

=item B<--ssh-command>

Specify ssh command (default: 'ssh'). Useful to use 'plink'.

=item B<--timeout>

Timeout in seconds for the command (Default: 30).

=item B<--sudo>

Use 'sudo' to execute the command.

=item B<--command>

Command to get information (Default: 'df').
Can be changed if you have output in a file.

=item B<--command-path>

Command path (Default: none).

=item B<--command-options>

Command options (Default: '-i -v 2>&1').

=item B<--warning-usage>

Threshold warning in percent.

=item B<--critical-usage>

Threshold critical in percent.

=item B<--name>

Set the storage mount point (empty means 'check all storages')

=item B<--regexp>

Allows to use regexp to filter storage mount point (with option --name).

=item B<--regexp-isensitive>

Allows to use regexp non case-sensitive (with --regexp).

=item B<--filter-fs>

Filter filesystem (regexp can be used).

=back

=cut
