#!/usr/bin/perl

# Link an item belonging to an analytical record, the item barcode needs to be provided
#
# Copyright 2009 BibLibre, 2010 Nucsoft OSS Labs
#
# 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 3 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, see <http://www.gnu.org/licenses>.

use Modern::Perl;

use CGI qw ( -utf8 );
use C4::Auth qw( get_template_and_user );
use C4::Output qw( output_html_with_http_headers );
use C4::Biblio qw( ModBiblio PrepHostMarcField );
use C4::Context;
use Koha::Biblios;


my $query = CGI->new;

my ($template, $loggedinuser, $cookie) = get_template_and_user(
    {
        template_name   => "cataloguing/linkitem.tt",
        query           => $query,
        type            => "intranet",
        flagsrequired   => { editcatalogue => 'edit_catalogue' },
    }
);

my $biblionumber = $query->param('biblionumber');
my $barcode      = $query->param('barcode');
my $op           = $query->param('op') || q{};
my $biblio = Koha::Biblios->find($biblionumber);
my $record = $biblio->metadata->record;
my $marcflavour = C4::Context->preference("marcflavour");
$marcflavour ||="MARC21";
if ($marcflavour eq 'MARC21') {
    $template->param(bibliotitle => $record->subfield('245','a'));
} elsif ($marcflavour eq 'UNIMARC') {
    $template->param(bibliotitle => $record->subfield('200','a'));
}

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

if ( $op eq 'cud-linkitem' && $barcode && $biblionumber ) {

    my $item = Koha::Items->find( { barcode => $barcode } );

    if ($item) {
        my $field = PrepHostMarcField( $item->biblio->biblionumber, $item->itemnumber, $marcflavour );
        $record->append_fields($field);

        my $modresult = ModBiblio( $record, $biblionumber, '' );
        if ($modresult) {
            $template->param( success => 1 );
        }
        else {
            $template->param(
                error            => 1,
                errornomodbiblio => 1
            );
        }
        $template->param(
            hostitemnumber => $item->itemnumber,
        );
    }
    else {
        $template->param(
            error                 => 1,
            errornohostitemnumber => 1,
        );
    }

    $template->param(
        barcode        => $barcode,
    );

}
else {
    $template->param( missingparameter => 1 );
    if ( !$barcode )      { $template->param( missingbarcode      => 1 ); }
    if ( !$biblionumber ) { $template->param( missingbiblionumber => 1 ); }
}


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