#!/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

use strict;
use C4::Output;
use CGI;
use C4::Search;
use C4::Context;
use C4::Biblio;
use HTML::Template;

my $input = new CGI;
my $tablename=$input->param('tablename');
$tablename="biblio" unless ($tablename);
my $kohafield = $input->param('kohafield');
my $op=$input->param('op');
my $script_name = 'koha2marclinks.pl';

my $template = gettemplate("parameters/koha2marclinks.tmpl",0);

if ($op) {
$template->param(script_name => $script_name,
						$op              => 1); # we show only the TMPL_VAR names $op
} else {
$template->param(script_name => $script_name,
						else              => 1); # we show only the TMPL_VAR names $op
}

my $dbh = C4::Context->dbh;

################## ADD_FORM ##################################
# called by default. Used to create form to add or  modify a record
if ($op eq 'add_form') {
	my $data;
	my $sth = $dbh->prepare("select tagfield,tagsubfield,liblibrarian as lib,tab from marc_subfield_structure where kohafield=?");
	$sth->execute($tablename.".".$kohafield);
	my ($defaulttagfield, $defaulttagsubfield,$defaultliblibrarian) = $sth->fetchrow;

	for (my $i=0;$i<=9;$i++) {
		my $sth2=$dbh->prepare("select tagfield,tagsubfield,liblibrarian as lib,tab from marc_subfield_structure where tagfield like '$i%'");
		$sth2->execute;
		my @marcarray;
		push @marcarray," ";
		while (my ($field, $tagsubfield, $liblibrarian) = $sth2->fetchrow_array) {
	#		warn "$field$tagsubfield - $liblibrarian";
			push @marcarray, "$field $tagsubfield - $liblibrarian";
		}
		my $marclist = CGI::scrolling_list(-name=>"marc",
						-values=> \@marcarray,
						-default=>"$defaulttagfield $defaulttagsubfield - $defaultliblibrarian",
						-size=>1,
						-multiple=>0,
						);
		$template->param("marclist$i" => $marclist);
	}
	$template->param(	tablename => $tablename,
							kohafield => $kohafield);

													# END $OP eq ADD_FORM
################## ADD_VALIDATE ##################################
# called by add_form, used to insert/modify data in DB
} elsif ($op eq 'add_validate') {
	#----- empty koha field :
	$dbh->do("update marc_subfield_structure set kohafield='' where kohafield='$tablename.$kohafield'");
	#---- reload if not empty
	my @temp = split / /,$input->param('marc');
	$dbh->do("update marc_subfield_structure set kohafield='$tablename.$kohafield' where tagfield='$temp[0]' and tagsubfield='$temp[1]'");
	print "Content-Type: text/html\n\n<META HTTP-EQUIV=Refresh CONTENT=\"0; URL=koha2marclinks.pl?tablename=$tablename\"></html>";
	exit;

													# END $OP eq ADD_VALIDATE
################## DEFAULT ##################################
} else { # DEFAULT
	my $env;
	my $sth=$dbh->prepare("Select tagfield,tagsubfield,liblibrarian,kohafield from marc_subfield_structure");
	$sth->execute;
	my %fields;
	while ((my $tagfield,my $tagsubfield,my $liblibrarian,my $kohafield) = $sth->fetchrow) {
		$fields{$kohafield}->{tagfield} = $tagfield;
		$fields{$kohafield}->{tagsubfield} = $tagsubfield;
		$fields{$kohafield}->{liblibrarian} = $liblibrarian;
	}
	my $sth2=$dbh->prepare("SHOW COLUMNS from $tablename");
	$sth2->execute;

	my $toggle="white";
	my @loop_data = ();
	while ((my $field) = $sth2->fetchrow_array) {
	  	if ($toggle eq 'white'){
			$toggle="#ffffcc";
	  	} else {
			$toggle="white";
	  	}
		my %row_data;  # get a fresh hash for the row data
		$row_data{tagfield} = $fields{$tablename.".".$field}->{tagfield};
		$row_data{tagsubfield} = $fields{$tablename.".".$field}->{tagsubfield};
		$row_data{liblibrarian} = $fields{$tablename.".".$field}->{liblibrarian};
		$row_data{kohafield} = $field;
		$row_data{edit} = "$script_name?op=add_form&tablename=$tablename&kohafield=$field";
		$row_data{bgcolor} = $toggle;
		push(@loop_data,\%row_data);
	}
	$template->param(loop => \@loop_data,
							tablename => CGI::scrolling_list(-name=>'tablename',
																	-values=>['biblio','biblioitems','items'],
																	-default=>$tablename,
																	-size=>1,
																	-multiple=>0
																	)
							);
} #---- END $OP eq DEFAULT

print "Content-Type: text/html\n\n", $template->output;