#!/usr/bin/perl
use CGI;
use strict;
use warnings;
use C4::Context;
use XML::Simple;
use LWP::Simple;

use LWP::UserAgent;
use HTTP::Request::Common;

my $cgi = new CGI;
binmode(STDOUT, "utf8"); #output as utf8
my $baseurl = C4::Context->preference('OPACBaseURL');
warn "Warning: OPACBaseURL not set in system preferences" unless $baseurl;

my $id = $cgi->param('id');
my $format = $cgi->param('format');
if ($id && $format) {

    # koha:isbn:0152018484
    if ($id =~ /isbn/) {
        $id =~ s/koha:isbn://;

        # two ways to do this, one via the SRU Zebra server (fast)
        # FIXME - getting the SRU URL this way is purely guesswork
        $baseurl =~ s/:\d+$//; # parse off OPAC port
        my $url = "$baseurl:9998/biblios?version=1.1&operation=searchRetrieve&query=$id&startRecord=1&maximumRecords=20&recordSchema=$format";
        my $content= get($url);

        # the other via XSL parsing (not as fast)
        unless ($content) {
            
        eval {
            my $conn = C4::Context->Zconn('biblioserver');
            $conn->option(preferredRecordSyntax => $format);
            my $rs = $conn->search_pqf('@attr 1=7 '.$id);
            my $n = $rs->size();
            $content = $rs->record(0)->raw();
        };
        if ($@) {
            print "Error ", $@->code(), ": ", $@->message(), "\n";
        }

        }
        print $cgi->header( -type =>'application/xml' );
        print $content;
    }
}

else {

print $cgi->header( -type =>'application/xml' );

print "<?xml version='1.0' encoding='utf-8'  ?>
<formats>
<!-- <format name=\"opac\" type=\"text/html\"/> -->
<!-- <format name=\"html\" type=\"text/html\"/> -->
<!-- <format name=\"htmlholdings\" type=\"text/html\"/> -->
<!-- <format name=\"html-full\" type=\"text/html\"/> -->
<!-- <format name=\"htmlholdings-full\" type=\"text/html\"/> -->
<!-- <format name=\"atom\" type=\"application/xml\" namespace_uri=\"http://www.w3.org/2005/Atom\" docs=\"http://www.ietf.org/rfc/rfc4287.txt\"/> -->
<!-- <format name=\"atom-full\" type=\"application/xml\" namespace_uri=\"http://www.w3.org/2005/Atom\" docs=\"http://www.ietf.org/rfc/rfc4287.txt\"/> -->
<format name=\"marcxml\" type=\"application/xml\" namespace_uri=\"http://www.loc.gov/MARC21/slim\" docs=\"http://www.loc.gov/marcxml/\" schema_location=\"http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd\"/>
<format name=\"marcxml-full\" type=\"application/xml\" namespace_uri=\"http://www.loc.gov/MARC21/slim\" docs=\"http://www.loc.gov/marcxml/\" schema_location=\"http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd\"/>
<format name=\"mods\" type=\"application/xml\" namespace_uri=\"http://www.loc.gov/mods/\" docs=\"http://www.loc.gov/mods/\" schema_location=\"http://www.loc.gov/standards/mods/mods.xsd\"/>
<format name=\"mods-full\" type=\"application/xml\" namespace_uri=\"http://www.loc.gov/mods/\" docs=\"http://www.loc.gov/mods/\" schema_location=\"http://www.loc.gov/standards/mods/mods.xsd\"/>
<format name=\"mods3\" type=\"application/xml\" namespace_uri=\"http://www.loc.gov/mods/v3\" docs=\"http://www.loc.gov/mods/\" schema_location=\"http://www.loc.gov/standards/mods/v3/mods-3-1.xsd\"/>
<format name=\"mods3-full\" type=\"application/xml\" namespace_uri=\"http://www.loc.gov/mods/v3\" docs=\"http://www.loc.gov/mods/\" schema_location=\"http://www.loc.gov/standards/mods/v3/mods-3-1.xsd\"/>
<format name=\"oai_dc\" type=\"application/xml\" namespace_uri=\"http://www.openarchives.org/OAI/2.0/oai_dc/\" schema_location=\"http://www.openarchives.org/OAI/2.0/oai_dc.xsd\"/>
<format name=\"rdfdc\" type=\"application/xml\" namespace_uri=\"http://purl.org/dc/elements/1.1/\" schema_location=\"http://purl.org/dc/elements/1.1/\"/>
<format name=\"rss2\" type=\"application/xml\"/>
<format name=\"rss2-full\" type=\"application/xml\"/>
<format name=\"srw_dc\" type=\"application/xml\" namespace_uri=\"info:srw/schema/1/dc-schema\" schema_location=\"http://www.loc.gov/z3950/agency/zing/srw/dc-schema.xsd\"/>
</formats>
";
}