#!/usr/bin/perl

# Copyright 2000-2002 Katipo Communications
#
# 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

=head1 NAME

ISBDdetail.pl : script to show a biblio in ISBD format

=head1 SYNOPSIS


=head1 DESCRIPTION

This script needs a biblionumber as parameter 

=head1 FUNCTIONS

=over 2

=cut

use strict;
require Exporter;
use C4::Auth;
use C4::Context;
use C4::Output;
use CGI;
use C4::Koha;
use C4::Biblio;
use C4::Branch;     # GetBranchDetail
use C4::Serials;    # CountSubscriptionFromBiblionumber


#---- Internal function

sub get_authorised_value_desc ($$$$$$$) {
    my ( $itemtype, $tagslib, $tag, $subfield, $value, $framework, $dbh ) = @_;

    #---- branch
    if ( $tagslib->{$tag}->{$subfield}->{'authorised_value'} eq "branches" ) {
        return GetBranchDetail($value)->{branchname};
    }

    #---- itemtypes
    if ( $tagslib->{$tag}->{$subfield}->{'authorised_value'} eq "itemtypes" ) {
        my $itemtypedef = getitemtypeinfo($value);
        return $itemtypedef->{description};
    }

    #---- "true" authorized value
    my $category = $tagslib->{$tag}->{$subfield}->{'authorised_value'};

    if ( $category ne "" ) {
        my $sth =
          $dbh->prepare(
"select lib from authorised_values where category = ? and authorised_value = ?"
          );
        $sth->execute( $category, $value );
        my $data = $sth->fetchrow_hashref;
        return $data->{'lib'};
    }
    else {
        return $value;    # if nothing is found return the original value
    }
}
# ------


my $query = new CGI;
my $dbh = C4::Context->dbh;

my $biblionumber = $query->param('biblionumber');
my $itemtype     = &GetFrameworkCode($biblionumber);
my $tagslib      = &GetMarcStructure( 1, $itemtype );

my $record = GetMarcBiblio($biblionumber);

# open template
my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
    {
        template_name => "catalogue/ISBDdetail.tmpl",
        query         => $query,
        type          => "intranet",
	authnotrequired => 0,
	flagsrequired   => { catalogue => 1 },
    }
);

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

# my @blocs = split /\@/,$ISBD;
# my @fields = $record->fields();
my $res;

# foreach my $bloc (@blocs) {
#     $bloc =~ s/\n//g;
my $bloc = $ISBD;
my $blocres;
foreach my $isbdfield ( split /#/, $bloc ) {

    #         $isbdfield= /(.?.?.?)/;
    $isbdfield =~ /(\d\d\d)\|(.*)\|(.*)\|(.*)/;
    my $fieldvalue    = $1;
    my $textbefore    = $2;
    my $analysestring = $3;
    my $textafter     = $4;

    #         warn "==> $1 / $2 / $3 / $4";
    #         my $fieldvalue=substr($isbdfield,0,3);
    if ( $fieldvalue > 0 ) {

   #         warn "ERROR IN ISBD DEFINITION at : $isbdfield" unless $fieldvalue;
   #             warn "FV : $fieldvalue";
        my $hasputtextbefore = 0;
        foreach my $field ( $record->field($fieldvalue) ) {
            my $calculated = $analysestring;
            my $tag        = $field->tag();
            if ( $tag < 10 ) {
            }
            else {
                my @subf = $field->subfields;
                for my $i ( 0 .. $#subf ) {
                    my $subfieldcode  = $subf[$i][0];
                    my $subfieldvalue =
                      get_authorised_value_desc( $itemtype,$tagslib, $tag, $subf[$i][0],
                        $subf[$i][1], '', $dbh );
                    my $tagsubf = $tag . $subfieldcode;
                    $calculated =~
s/\{(.?.?.?)$tagsubf(.*?)\}/$1$subfieldvalue$2\{$1$tagsubf$2\}/g;
                }

                # field builded, store the result
                if ( $calculated && !$hasputtextbefore )
                {    # put textbefore if not done
                    $blocres .= $textbefore;
                    $hasputtextbefore = 1;
                }

                # remove punctuation at start
                $calculated =~ s/^( |;|:|\.|-)*//g;
                $blocres .= $calculated;
            }
        }
        $blocres .= $textafter if $hasputtextbefore;
    }
    else {
        $blocres .= $isbdfield;
    }
}
$res .= $blocres;

# }
$res =~ s/\{(.*?)\}//g;
$res =~ s/\\n/\n/g;
$res =~ s/\n/<br\/>/g;

# remove empty ()
$res =~ s/\(\)//g;
# count of item linked with biblio
my $itemcount = GetItemsCount($biblionumber);
$template->param( count => $itemcount);
my $subscriptionsnumber = CountSubscriptionFromBiblionumber($biblionumber);
 
if ($subscriptionsnumber) {
    my $subscriptions     = GetSubscriptionsFromBiblionumber($biblionumber);
    my $subscriptiontitle = $subscriptions->[0]{'bibliotitle'};
    $template->param(
        subscriptionsnumber => $subscriptionsnumber,
        subscriptiontitle   => $subscriptiontitle,
    );
}

$template->param (
    ISBD                => $res,
    biblionumber        => $biblionumber,
);

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