#!/usr/bin/perl

# Copyright Pat Eyler 2003
# Copyright Biblibre 2006
# Parts Copyright Liblime 2008
# Parts Copyright Chris Nighswonger 2010
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA  02111-1307 USA

use strict;
use warnings;

use CGI;
use LWP::Simple;
use XML::Simple;
use Config;

use C4::Output;
use C4::Auth;
use C4::Context;
use C4::Installer;

my $query = new CGI;
my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
    {
        template_name   => "about.tmpl",
        query           => $query,
        type            => "intranet",
        authnotrequired => 0,
        flagsrequired   => { catalogue => 1 },
        debug           => 1,
    }
);

my $kohaVersion   = C4::Context::KOHAVERSION;
my $osVersion     = `uname -a`;
my $perl_path = $^X;
if ($^O ne 'VMS') {
    $perl_path .= $Config{_exe} unless $perl_path =~ m/$Config{_exe}$/i;
}
my $perlVersion   = $];
my $mysqlVersion  = `mysql -V`;
my $apacheVersion = `httpd -v`;
$apacheVersion = `httpd2 -v` unless $apacheVersion;
$apacheVersion = (`/usr/sbin/apache2 -V`)[0] unless $apacheVersion;
my $zebraVersion = `zebraidx -V`;

$template->param(
    kohaVersion   => $kohaVersion,
    osVersion     => $osVersion,
    perlPath      => $perl_path,
    perlVersion   => $perlVersion,
    perlIncPath   => [ map { perlinc => $_ }, @INC ],
    mysqlVersion  => $mysqlVersion,
    apacheVersion => $apacheVersion,
    zebraVersion  => $zebraVersion,
);

my @components = ();

my $perl_modules = C4::Installer::PerlModules->new;
$perl_modules->version_info;

my @pm_types = qw(missing_pm upgrade_pm current_pm);

foreach my $pm_type(@pm_types) {
    my $modules = $perl_modules->get_attr($pm_type);
    foreach (@$modules) {
        my ($module, $stats) = each %$_;
        push(
            @components,
            {
                name    => $module,
                version => $stats->{'cur_ver'},
                missing => ($pm_type eq 'missing_pm' ? 1 : 0),
                upgrade => ($pm_type eq 'upgrade_pm' ? 1 : 0),
                current => ($pm_type eq 'current_pm' ? 1 : 0),
                require => $stats->{'required'},
            }
        );
    }
}

@components = sort {$a->{'name'} cmp $b->{'name'}} @components;

my $counter=0;
my $row = [];
my $table = [];
foreach (@components) {
    push (@$row, $_);
    unless (++$counter % 4) {
        push (@$table, {row => $row});
        $row = [];
    }
}

$template->param( table => $table );

output_html_with_http_headers $query, $cookie, $template->output;