#!/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 HTML::Template;

sub StringSearch  {
	my ($env,$searchstring,$type)=@_;
	my $dbh = C4::Context->dbh;
	$searchstring=~ s/\'/\\\'/g;
	my @data=split(' ',$searchstring);
	my $count=@data;
	my $query="Select tagfield,tagsubfield,liblibrarian,libopac,repeatable,mandatory,kohafield,tab, authorised_value from marc_subfield_structure where (tagfield like \"$searchstring%\") order by tagfield";
	my $sth=$dbh->prepare($query);
	$sth->execute;
	my @results;
	my $cnt=0;
	while (my $data=$sth->fetchrow_hashref){
	push(@results,$data);
	$cnt ++;
	}
	#  $sth->execute;
	$sth->finish;
	$dbh->disconnect;
	return ($cnt,\@results);
}

my $input = new CGI;
my $tagfield=$input->param('tagfield');
my $tagsubfield=$input->param('tagsubfield');
my $pkfield="tagfield";
my $reqsel="select tagfield,tagsubfield,liblibrarian,libopac,repeatable,mandatory,kohafield,tab,authorised_value from marc_subfield_structure where tagfield='$tagfield'";
my $reqdel="delete from marc_subfield_structure where tagfield='$tagfield' and tagsubfield='$tagsubfield'";
my $offset=$input->param('offset');
my $script_name="/cgi-bin/koha/admin/marc_subfields_structure.pl";

my $template = gettemplate("parameters/marc_subfields_structure.tmpl",0);
my $pagesize=30;
my $op = $input->param('op');
$tagfield=~ s/\,//g;

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

################## ADD_FORM ##################################
# called by default. Used to create form to add or  modify a record
if ($op eq 'add_form') {
	my $data;
	my $dbh = C4::Context->dbh;
	my $sth=$dbh->prepare("select tagfield,tagsubfield,liblibrarian,libopac,repeatable,mandatory,kohafield,tab,authorised_value from marc_subfield_structure where tagfield='$tagfield'"); # and tagsubfield='$tagsubfield'");
	$sth->execute;
	# builds kohafield tables
	my @kohafields;
	push @kohafields, "";
	my $sth2=$dbh->prepare("SHOW COLUMNS from biblio");
	$sth2->execute;
	while ((my $field) = $sth2->fetchrow_array) {
		push @kohafields, "biblio.".$field;
	}
	my $sth2=$dbh->prepare("SHOW COLUMNS from biblioitems");
	$sth2->execute;
	while ((my $field) = $sth2->fetchrow_array) {
		push @kohafields, "biblioitems.".$field;
	}
	my $sth2=$dbh->prepare("SHOW COLUMNS from items");
	$sth2->execute;
	while ((my $field) = $sth2->fetchrow_array) {
		push @kohafields, "items.".$field;
	}
	# buiild authorised value list
	$sth2->finish;
	$sth2 = $dbh->prepare("select distinct category from authorised_values");
	$sth2->execute;
	my @authorised_values;
	push @authorised_values,"";
	while ((my $category) = $sth2->fetchrow_array) {
		push @authorised_values, $category;
	}
	$template->param(action => "Edit subfields",
							tagfield => "<input type=hidden name=tagfield value='$tagfield'>$tagfield",
							);
	my @loop_data = ();
	my $toggle="white";
	my $i=0;
	while ($data =$sth->fetchrow_hashref) {
		my %row_data;  # get a fresh hash for the row data
		if ($toggle eq 'white'){
			$toggle="#ffffcc";
	  	} else {
			$toggle="white";
	  	}
		$row_data{tab} = CGI::scrolling_list(-name=>'tab',
					-values=>['-1','0','1','2','3','4','5','6','7','8','9','10'],
					-labels => {'-1' =>'ignore','0'=>'0','1'=>'1',
									'2' =>'2','3'=>'3','4'=>'4',
									'5' =>'5','6'=>'6','7'=>'7',
									'8' =>'8','9'=>'9','10'=>'items (10)',
									},
					-default=>$data->{'tab'},
					-size=>1,
					-multiple=>0,
					);
		$row_data{tagsubfield} =$data->{'tagsubfield'}."<input type='hidden' name='tagsubfield' value='".$data->{'tagsubfield'}."'>";
		$row_data{liblibrarian} = $data->{'liblibrarian'};
		$row_data{libopac} = $data->{'libopac'};
		$row_data{kohafield}= CGI::scrolling_list( -name=>"kohafield",
					-values=> \@kohafields,
					-default=> "$data->{'kohafield'}",
					-size=>1,
					-multiple=>0,
					);
		$row_data{authorised_value}  = CGI::scrolling_list(-name=>'authorised_value',
					-values=> \@authorised_values,
					-default=>$data->{'authorised_value'},
					-size=>1,
					-multiple=>0,
					);
#		$row_data{kohafield} = $data->{'kohafield'};
		$row_data{repeatable} = CGI::checkbox("repeatable$i",$data->{'repeatable'}?'checked':'',1,'');
		$row_data{mandatory} = CGI::checkbox("mandatory$i",$data->{'mandatory'}?'checked':'',1,'');
		$row_data{bgcolor} = $toggle;
		push(@loop_data, \%row_data);
		$i++;
	}
	# add an empty line for add if needed
		my %row_data;  # get a fresh hash for the row data
		$row_data{tab} = CGI::scrolling_list(-name=>'tab',
					-values=>['-1','0','1','2','3','4','5','6','7','8','9','10'],
					-labels => {'-1' =>'ignore','0'=>'0','1'=>'1',
									'2' =>'2','3'=>'3','4'=>'4',
									'5' =>'5','6'=>'6','7'=>'7',
									'8' =>'8','9'=>'9','10'=>'items (10)',
									},
					-default=>"",
					-size=>1,
					-multiple=>0,
					);
		$row_data{tagsubfield} = "<input type='text' name='tagsubfield' value='".$data->{'tagsubfield'}."' size=3 maxlength=1>";
		$row_data{liblibrarian} = "";
		$row_data{libopac} = "";
		$row_data{repeatable} = CGI::checkbox('repeatable','',1,'');
		$row_data{mandatory} = CGI::checkbox('mandatory','',1,'');
		$row_data{kohafield}= CGI::scrolling_list( -name=>'kohafield',
					-values=> \@kohafields,
					-default=> "",
					-size=>1,
					-multiple=>0,
					);
		$row_data{authorised_value}  = CGI::scrolling_list(-name=>'authorised_value',
					-values=> \@authorised_values,
					-size=>1,
					-multiple=>0,
					);
		$row_data{bgcolor} = $toggle;
		push(@loop_data, \%row_data);

	$template->param(loop => \@loop_data);

													# END $OP eq ADD_FORM
################## ADD_VALIDATE ##################################
# called by add_form, used to insert/modify data in DB
} elsif ($op eq 'add_validate') {
	my $dbh = C4::Context->dbh;
	$template->param(tagfield => "$input->param('tagfield')");
	my $sth=$dbh->prepare("replace marc_subfield_structure (tagfield,tagsubfield,liblibrarian,libopac,repeatable,mandatory,kohafield,tab,authorised_value)
									values (?,?,?,?,?,?,?,?,?)");
	my @tagsubfield	= $input->param('tagsubfield');
	my @liblibrarian	= $input->param('liblibrarian');
	my @libopac		= $input->param('libopac');
	my @kohafield		= $input->param('kohafield');
	my @tab				= $input->param('tab');
	my @authorised_values	= $input->param('authorised_value');
	for (my $i=0; $i<= $#tagsubfield ; $i++) {
		my $tagfield			=$input->param('tagfield');
		my $tagsubfield		=$tagsubfield[$i];
		my $liblibrarian		=$liblibrarian[$i];
		my $libopac			=$libopac[$i];
		my $repeatable		=$input->param("repeatable$i")?1:0;
		my $mandatory		=$input->param("mandatory$i")?1:0;
		my $kohafield		=$kohafield[$i];
		my $tab				=$tab[$i];
		my $authorised_value		=$authorised_values[$i];
		if ($tagsubfield) {
			$sth->execute ($tagfield,
								$tagsubfield,
								$liblibrarian,
								$libopac,
								$repeatable,
								$mandatory,
								$kohafield,
								$tab,
								$authorised_value);
		}
	}
	$sth->finish;
	print "Content-Type: text/html\n\n<META HTTP-EQUIV=Refresh CONTENT=\"0; URL=marc_subfields_structure.pl?tagfield=$tagfield\"></html>";
	exit;

													# END $OP eq ADD_VALIDATE
################## DELETE_CONFIRM ##################################
# called by default form, used to confirm deletion of data in DB
} elsif ($op eq 'delete_confirm') {
	my $dbh = C4::Context->dbh;
	my $sth=$dbh->prepare($reqsel);
	$sth->execute;
	my $data=$sth->fetchrow_hashref;
	$sth->finish;
	$template->param(liblibrarian => $data->{'liblibrarian'},
							tagsubfield => $tagsubfield,
							delete_link => $script_name,
							tagfield      =>$tagfield,
							tagsubfield => $tagsubfield,
							);
													# END $OP eq DELETE_CONFIRM
################## DELETE_CONFIRMED ##################################
# called by delete_confirm, used to effectively confirm deletion of data in DB
} elsif ($op eq 'delete_confirmed') {
	my $dbh = C4::Context->dbh;
	my $sth=$dbh->prepare($reqdel);
	$sth->execute;
	$sth->finish;
	print "Content-Type: text/html\n\n<META HTTP-EQUIV=Refresh CONTENT=\"0; URL=marc_subfields_structure.pl?tagfield=$tagfield\"></html>";
	exit;
	$template->param(tagfield => $tagfield);
													# END $OP eq DELETE_CONFIRMED
################## DEFAULT ##################################
} else { # DEFAULT
	my $env;
	my ($count,$results)=StringSearch($env,$tagfield,'web');
	my $toggle="white";
	my @loop_data = ();
	for (my $i=$offset; $i < ($offset+$pagesize<$count?$offset+$pagesize:$count); $i++){
	  	if ($toggle eq 'white'){
			$toggle="#ffffcc";
	  	} else {
			$toggle="white";
	  	}
		my %row_data;  # get a fresh hash for the row data
		$row_data{tagfield} = $results->[$i]{'tagfield'};
		$row_data{tagsubfield} = $results->[$i]{'tagsubfield'};
		$row_data{liblibrarian} = $results->[$i]{'liblibrarian'};
		$row_data{kohafield} = $results->[$i]{'kohafield'};
		$row_data{repeatable} = $results->[$i]{'repeatable'};
		$row_data{mandatory} = $results->[$i]{'mandatory'};
		$row_data{tab} = $results->[$i]{'tab'};
		$row_data{authorised_value} = $results->[$i]{'authorised_value'};
		$row_data{delete} = "$script_name?op=delete_confirm&tagfield=$tagfield&tagsubfield=".$results->[$i]{'tagsubfield'};
		$row_data{bgcolor} = $toggle;
		push(@loop_data, \%row_data);
	}
	$template->param(loop => \@loop_data);
	$template->param(edit => "<a href='$script_name?op=add_form&tagfield=$tagfield'>Edit</a>");
	if ($offset>0) {
		my $prevpage = $offset-$pagesize;
		$template->param(prev =>"<a href=$script_name?offset=".$prevpage.'&lt;&lt; Prev</a>');
	}
	if ($offset+$pagesize<$count) {
		my $nextpage =$offset+$pagesize;
		$template->param(next => "<a href=$script_name?offset=".$nextpage.'Next &gt;&gt;</a>');
	}
} #---- END $OP eq DEFAULT

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