#!/usr/bin/perl
use Modern::Perl;

use C4::Record;
use C4::Auth qw( get_template_and_user );
use C4::Output;
use C4::Biblio qw( GetMarcControlnumber );
use CGI qw ( -utf8 );
use C4::Ris qw( marc2ris );



my $query = CGI->new;
my ( $template, $loggedinuser, $cookie ) = get_template_and_user({
    template_name   => "tools/export.tt",
    query           => $query,
    type            => "intranet",
    flagsrequired   => { catalogue => 1 },
    });

my $op=$query->param("op");
my $format=$query->param("format");
my $error = '';
if ($op eq "export") {
    my $biblionumber = $query->param("bib");
        if ($biblionumber){
            my $file_id = $biblionumber;
            my $file_pre = "bib-";

            my $biblio = Koha::Biblios->find($biblionumber);
            my $marc   = $biblio->metadata->record({ embed_items => 1 });

            if( C4::Context->preference('DefaultSaveRecordFileID') eq 'controlnumber' ){
                my $marcflavour = C4::Context->preference('marcflavour'); #FIXME This option is required but does not change control num behaviour
                my $control_num = GetMarcControlnumber( $marc, $marcflavour );
                if( $control_num ){
                    $file_id = $control_num;
                    $file_pre = "record-";
                }
            }

            if ($format =~ /endnote/) {
                $marc = marc2endnote($marc);
                $format = 'endnote';
            }
            elsif ($format =~ /marcxml/) {
                $marc = marc2marcxml($marc);
                $format = "marcxml";
            }
            elsif ($format=~ /mods/) {
                $marc = marc2modsxml($marc);
                $format = "mods";
            }
            elsif ($format =~ /ris/) {
                $marc = marc2ris($marc);
                $format = "ris";
            }
            elsif ($format =~ /bibtex/) {
                $marc = marc2bibtex($marc);
                $format = "bibtex";
            }
            elsif ($format =~ /dc$/) {
                $marc = marc2dcxml(undef, undef, $biblionumber, $format);
                $format = "dublin-core.xml";
            }
            elsif ($format =~ /marc8/) {
                $marc = changeEncoding($marc,"MARC","MARC21","MARC-8");
                $marc = $marc->as_usmarc();
                $format = "marc8";
            }
            elsif ($format =~ /utf8/) {
                C4::Charset::SetUTF8Flag($marc, 1);
                $marc = $marc->as_usmarc();
                $format = "utf8";
            }
            elsif ($format =~ /marcstd/) {
                C4::Charset::SetUTF8Flag($marc,1);
                ($error, $marc) = marc2marc($marc, 'marcstd', C4::Context->preference('marcflavour'));
                $format = "marcstd";
            }
            if ( $format =~ /utf8/ or $format =~ /marcstd/ ) {
                binmode STDOUT, ':encoding(UTF-8)';
            }
            print $query->header(
                -type => 'application/octet-stream',
                -attachment=>"$file_pre$file_id.$format");
            print $marc;
        }
}