#!/usr/bin/perl

# Copyright 2009 BibLibre
#
# 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.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

use strict;
use warnings;

use CGI qw ( -utf8 );
use Encode qw(encode);

use C4::Auth;
use C4::Biblio;
use C4::Items;
use C4::Output;
use C4::VirtualShelves;
use C4::Record;
use C4::Ris;
use C4::Csv;
use utf8;
my $query = new CGI;

my ( $template, $borrowernumber, $cookie ) = get_template_and_user (
    {
        template_name   => "basket/downloadcart.tt",
        query           => $query,
        type            => "intranet",
        authnotrequired => 0,
        flagsrequired   => { borrow => 1 },
    }
);

my $bib_list = $query->param('bib_list');
my $format  = $query->param('format');
my $dbh     = C4::Context->dbh;

if ($bib_list && $format) {

    my @bibs = split( /\//, $bib_list );

    my $marcflavour         = C4::Context->preference('marcflavour');
    my $output;

    # CSV   
    if ($format =~ /^\d+$/) {

        $output = marc2csv(\@bibs, $format);
    
    # Other formats
    } else {

        foreach my $biblio (@bibs) {

            my $record = GetMarcBiblio($biblio, 1);
            next unless $record;

            if ($format eq 'iso2709') {
                $output .= $record->as_usmarc();
            }
            elsif ($format eq 'ris') {
                $output .= marc2ris($record);
            }
            elsif ($format eq 'bibtex') {
                $output .= marc2bibtex($record, $biblio);
            }
        }
    }

    # If it was a CSV export we change the format after the export so the file extension is fine
    $format = "csv" if ($format =~ m/^\d+$/);

    print $query->header(
	-type => 'application/octet-stream',
	-'Content-Transfer-Encoding' => 'binary',
	-attachment=>"cart.$format");
    print $output;

} else { 
    $template->param(csv_profiles => GetCsvProfilesLoop('marc'));
    $template->param(bib_list => $bib_list); 
    output_html_with_http_headers $query, $cookie, $template->output;
}