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package SL::Controller::File;

use strict;

use parent qw(SL::Controller::Base);

use List::Util qw(first max);

use utf8;
use Encode qw(decode);
use URI::Escape;
use Cwd;
use DateTime;
use File::stat;
use File::Spec::Unix;
use File::Spec::Win32;
use File::MimeInfo::Magic;
use SL::DB::Helper::Mappings;
use SL::DB::Order;
use SL::DB::DeliveryOrder;
use SL::DB::Invoice;

use SL::DB::PurchaseInvoice;
use SL::DB::Part;
use SL::DB::GLTransaction;
use SL::DB::Draft;
use SL::DB::History;
use SL::JSON;
use SL::Helper::CreatePDF qw(:all);
use SL::Locale::String;
use SL::SessionFile;
use SL::File;
use SL::Controller::Helper::ThumbnailCreator qw(file_probe_image_type);

use constant DO_DELETE => 0;
use constant DO_UNIMPORT => 1;


use Rose::Object::MakeMethods::Generic
(
'scalar --get_set_init' => [ qw() ],
'scalar' => [ qw(object object_type object_model object_id object_right file_type files is_global existing) ],
);

__PACKAGE__->run_before('check_object_params', only => [ qw(list ajax_delete ajax_importdialog ajax_import ajax_unimport ajax_upload ajax_files_uploaded) ]);

my %file_types = (
'sales_quotation' => { gen => 1 ,gltype => '', dir =>'SalesQuotation', model => 'Order', right => 'import_ar' },
'sales_order' => { gen => 1 ,gltype => '', dir =>'SalesOrder', model => 'Order', right => 'import_ar' },
'sales_delivery_order' => { gen => 1 ,gltype => '', dir =>'SalesDeliveryOrder', model => 'DeliveryOrder', right => 'import_ar' },
'invoice' => { gen => 1 ,gltype => 'ar', dir =>'SalesInvoice', model => 'Invoice', right => 'import_ar' },
'credit_note' => { gen => 1 ,gltype => '', dir =>'CreditNote', model => 'Invoice', right => 'import_ar' },
'request_quotation' => { gen => 3 ,gltype => '', dir =>'RequestForQuotation', model => 'Order', right => 'import_ap' },
'purchase_order' => { gen => 3 ,gltype => '', dir =>'PurchaseOrder', model => 'Order', right => 'import_ap' },
'purchase_delivery_order' => { gen => 3 ,gltype => '', dir =>'PurchaseDeliveryOrder',model => 'DeliveryOrder', right => 'import_ap' },
'purchase_invoice' => { gen => 2 ,gltype => 'ap', dir =>'PurchaseInvoice', model => 'PurchaseInvoice',right => 'import_ap' },
'vendor' => { gen => 0 ,gltype => '', dir =>'Vendor', model => 'Vendor', right => 'xx' },
'customer' => { gen => 1 ,gltype => '', dir =>'Customer', model => 'Customer', right => 'xx' },
'part' => { gen => 0 ,gltype => '', dir =>'Part', model => 'Part', right => 'xx' },
'gl_transaction' => { gen => 2 ,gltype => 'gl', dir =>'GeneralLedger', model => 'GLTransaction', right => 'import_ap' },
'draft' => { gen => 0 ,gltype => '', dir =>'Draft', model => 'Draft', right => 'xx' },
'csv_customer' => { gen => 1 ,gltype => '', dir =>'Reports', model => 'Customer', right => 'xx' },
'csv_vendor' => { gen => 1 ,gltype => '', dir =>'Reports', model => 'Vendor', right => 'xx' },
);

#--- 4 locale ---#
# $main::locale->text('imported')

#
# actions
#

sub action_list {
my ($self) = @_;

my $isjson = 0;
$isjson = 1 if $::form->{json};

$self->_do_list($isjson);
}

sub action_ajax_importdialog {
my ($self) = @_;
$::auth->assert($self->object_right);
my $path = $::form->{path};
my @files = $self->_get_from_import($path);
my $source = {
'name' => $::form->{source},
'path' => $path ,
'chk_action' => $::form->{source}.'_import',
'chk_title' => $main::locale->text('Import scanned documents'),
'chkall_title' => $main::locale->text('Import all'),
'files' => \@files
};
$self->render('file/import_dialog',
{ layout => 0
},
source => $source
);
}

sub action_ajax_import {
my ($self) = @_;
$::auth->assert($self->object_right);
my $ids = $::form->{ids};
my $source = $::form->{source};
my $path = $::form->{path};
my @files = $self->_get_from_import($path);
foreach my $filename (@{ $::form->{$ids} || [] }) {
my ($file,undef) = grep { $_->{name} eq $filename } @files;
if ( $file ) {
my $obj = SL::File->save(object_id => $self->object_id,
object_type => $self->object_type,
mime_type => 'application/pdf',
source => $source,
file_type => 'document',
file_name => $file->{filename},
file_path => $file->{path}
);
unlink($file->{path}) if $obj;
}
}
$self->_do_list(1);
}

sub action_ajax_delete {
my ($self) = @_;
$self->_delete_all(DO_DELETE,$::locale->text('Following files are deleted:'));
}

sub action_ajax_unimport {
my ($self) = @_;
$self->_delete_all(DO_UNIMPORT,$::locale->text('Following files are unimported:'));
}

sub action_ajax_rename {
my ($self) = @_;
my $file = SL::File->get(id => $::form->{id});
if ( ! $file ) {
$self->js->flash('error',$::locale->text('File not exists !'))->render();
return;
}
$main::lxdebug->message(LXDebug->DEBUG2(), "object_id=".$file->object_id." object_type=".$file->object_type." dbfile=".$file);
my $sessionfile = $::form->{sessionfile};
$main::lxdebug->message(LXDebug->DEBUG2(), "sessionfile=".$sessionfile);
if ( $sessionfile && -f $sessionfile ) {
$main::lxdebug->message(LXDebug->DEBUG2(), "file=".$file->file_name." to=".$::form->{to}." sessionfile=".$sessionfile);
# new uploaded file
if ( $::form->{to} eq $file->file_name ) {
# no rename so use as new version
$file->save_file($sessionfile);
$self->js->flash('warning',$::locale->text('File \'#1\' is used as new Version !',$file->file_name));

} else {
# new filename so it is a new file with same attributes as old file
eval {
SL::File->save(object_id => $file->object_id,
object_type => $file->object_type,
mime_type => $file->mime_type,
source => $file->source,
file_type => $file->file_type,
file_name => $::form->{to},
file_path => $sessionfile
);
unlink($sessionfile);
1;
} or do {
$self->js->flash( 'error', t8('internal error (see details)'))
->flash_detail('error', $@)->render;
return;
}
}

} else {
# normal rename
eval {
my $res = $file->rename($::form->{to});
$main::lxdebug->message(LXDebug->DEBUG2(), "rename result=".$res);
if ($res > SL::File::RENAME_OK) {
$self->js->flash('error',
$res == SL::File::RENAME_EXISTS ? $::locale->text('File still exists !')
: $res == SL::File::RENAME_SAME ? $::locale->text('Same Filename !')
: $::locale->text('File not exists !'))->render;
return 1;
}
1;
} or do {
$self->js->flash( 'error', t8('internal error (see details)'))
->flash_detail('error', $@)->render;
return;
}
}
$self->is_global($::form->{is_global});
$self->file_type( $file->file_type);
$self->object_type($file->object_type);
$self->object_id( $file->object_id);
#$self->object_model($file_types{$file->module}->{model});
#$self->object_right($file_types{$file->module}->{right});
if ( $::form->{next_ids} ) {
my @existing = split(/,/, $::form->{next_ids});
$self->existing(\@existing);
}
$self->_do_list(1);
}

sub action_ajax_upload {
my ($self) = @_;
$self->{maxsize} = $::instance_conf->get_doc_max_filesize;
$self->{accept_types} = '';
$self->{accept_types} = 'image/png,image/gif,image/jpeg,image/tiff,*png,*gif,*.jpg,*.tif' if $self->{file_type} eq 'image';
$self->render('file/upload_dialog',
{ layout => 0
},
);
}

sub action_ajax_files_uploaded {
my ($self) = @_;

my $source = 'uploaded';
$main::lxdebug->message(LXDebug->DEBUG2(), "file_upload UPLOAD=".$::form->{ATTACHMENTS}->{uploadfiles});
my @existing;
if ( $::form->{ATTACHMENTS}->{uploadfiles} ) {
my @upfiles = @{ $::form->{ATTACHMENTS}->{uploadfiles} };
foreach my $idx (0 .. scalar(@upfiles) - 1) {
eval {
my $fname = uri_unescape($upfiles[$idx]->{filename});
$main::lxdebug->message(LXDebug->DEBUG2(), "file_upload name=".$fname);
## normalize and find basename
# first split with unix rules
# after that split with windows rules
my ($volume,$directories,$basefile) = File::Spec::Unix->splitpath($fname);
($volume,$directories,$basefile) = File::Spec::Win32->splitpath($basefile);

# to find real mime_type by magic we must save the filedata

my $sess_fname = "file_upload_".$self->object_type."_".$self->object_id."_".$idx;
my $sfile = SL::SessionFile->new($sess_fname, mode => 'w');

$sfile->fh->print(${$upfiles[$idx]->{data}});
$sfile->fh->close;
my $mime_type = File::MimeInfo::Magic::magic($sfile->file_name);

if (! $mime_type) {
# if filename has the suffix "pdf", but is really no pdf set mimetype for no suffix
$mime_type = File::MimeInfo::Magic::mimetype($basefile);
$mime_type = 'application/octet-stream' if $mime_type eq 'application/pdf' || !$mime_type;
}
$main::lxdebug->message(LXDebug->DEBUG2(), "mime_type=".$mime_type);
if ( $self->file_type eq 'image' && $self->file_probe_image_type($mime_type, $basefile)) {
next;
}
my ($existobj) = SL::File->get_all(object_id => $self->object_id,
object_type => $self->object_type,
mime_type => $mime_type,
source => $source,
file_type => $self->file_type,
file_name => $basefile,
);

$main::lxdebug->message(LXDebug->DEBUG2(), "store1 exist=".$existobj);
if ($existobj) {
$main::lxdebug->message(LXDebug->DEBUG2(), "id=".$existobj->id." sessionfile=". $sfile->file_name);
push @existing, $existobj->id.'_'.$sfile->file_name;
} else {
my $fileobj = SL::File->save(object_id => $self->object_id,
object_type => $self->object_type,
mime_type => $mime_type,
source => $source,
file_type => $self->file_type,
file_name => $basefile,
## two possibilities: what is better ? content or sessionfile ??
#file_contents => ${$upfiles[$idx]->{data}},
file_path => $sfile->file_name
);
$main::lxdebug->message(LXDebug->DEBUG2(), "obj=".$fileobj);
unlink($sfile->file_name);
}
1;
} or do {
$self->js->flash( 'error', t8('internal error (see details)'))
->flash_detail('error', $@)->render;
return;
}
}
}
$self->existing(\@existing);
$self->_do_list(1);
}

sub action_download {
my ($self) = @_;
my ($id,$version) = split /_/, $::form->{id};
my $file = SL::File->get(id => $id );
$file->version($version) if $version;
my $ref = $file->get_content;
if ( $file && $ref ) {
return $self->send_file($ref,
type => $file->mime_type,
name => $file->file_name,
);
}
}

#
# filters
#

sub check_object_params {
my ($self) = @_;

my $id = ($::form->{object_id} // 0) * 1;
my $draftid = ($::form->{draft_id} // 0) * 1;
my $gldoc = 0;
my $type = undef;

if ( $draftid == 0 && $id == 0 && $::form->{is_global} ) {
$gldoc = 1;
$type = $::form->{object_type};
}
elsif ( $id == 0 ) {
$id = $::form->{draft_id};
$type = 'draft';
} elsif ( $::form->{object_type} ) {
$type = $::form->{object_type};
}
die "No object type" if ! $type;
die "No file type" if ! $::form->{file_type};
die "Unkown object type" if ! $file_types{$type};

$self->is_global($gldoc);
$self->file_type($::form->{file_type});
$self->object_type($type);
$self->object_id($id);
$self->object_model($file_types{$type}->{model});
$self->object_right($file_types{$type}->{right});
$main::lxdebug->message(LXDebug->DEBUG2(), "checked: object_id=".$self->object_id." object_type=".$self->object_type." is_global=".$self->is_global);

# $::auth->assert($self->object_right);

# my $model = 'SL::DB::' . $self->object_model;
# $self->object($model->new(id => $self->object_id)->load || die "Record not found");

return 1;
}

#
# private methods
#

sub _delete_all {
my ($self,$do_unimport,$infotext) = @_;
my $files = '';
my $ids = $::form->{ids};
foreach my $id_version (@{ $::form->{$ids} || [] }) {
my ($id,$version) = split /_/, $id_version;
my $dbfile = SL::File->get(id => $id);
$dbfile->version($version) if $dbfile && $version;
if ( $dbfile && $dbfile->delete ) {
$files .= ' '.$dbfile->file_name;
}
}
$self->js->flash('info',$infotext.$files) if $files;
$self->_do_list(1);
}

sub _do_list {
my ($self,$json) = @_;
my @files;
$main::lxdebug->message(LXDebug->DEBUG2(), "do_list: object_id=".$self->object_id." object_type=".$self->object_type." file_type=".$self->file_type." json=".$json);
if ( $self->file_type eq 'document' ) {
@files = SL::File->get_all_versions(object_id => $self->object_id ,
object_type => $self->object_type,
file_type => $self->file_type );

$main::lxdebug->message(LXDebug->DEBUG2(), "cnt1=".scalar(@files));
}
elsif ( $self->file_type eq 'attachment' || $self->file_type eq 'image' ) {
@files = SL::File->get_all(object_id => $self->object_id ,
object_type => $self->object_type,
file_type => $self->file_type );
$main::lxdebug->message(LXDebug->DEBUG2(), "cnt2=".scalar(@files));
}
$self->files(\@files);
$self->_mk_render('file/list',1,0,$json);
}

sub _get_from_import {
my ($self,$path) = @_;
my @foundfiles ;

$main::lxdebug->message(LXDebug->DEBUG2(), "import path=".$path);
my $language = $::lx_office_conf{system}->{language};
my $timezone = $::locale->get_local_time_zone()->name;
if (opendir my $dir, $path) {
my @files = ( readdir $dir);
foreach my $file ( @files) {
next if (($file eq '.') || ($file eq '..'));
$file = Encode::decode('utf-8', $file);
$main::lxdebug->message(LXDebug->DEBUG2(), "file=".$file);

next if( -d "$path/$file");

my $tmppath = File::Spec->catfile( $path, $file );
$main::lxdebug->message(LXDebug->DEBUG2(), "tmppath=".$tmppath." file=".$file);
next if( ! -f $tmppath);

my $st = stat($tmppath);
my $dt = DateTime->from_epoch( epoch => $st->mtime, time_zone => $timezone, locale => $language);
my $sname = $main::locale->quote_special_chars('HTML',$file);
push @foundfiles , {
'name' => $file,
'filename' => $sname,
'path' => $tmppath,
'mtime' => $st->mtime,
'date' => $dt->dmy('.')." ".$dt->hms,
};

}
}
$main::lxdebug->message(LXDebug->DEBUG2(), "return ".scalar(@foundfiles)." files");
return @foundfiles;
}

sub _mk_render {
my ($self,$template,$edit,$scanner,$json) = @_;
my $err;
eval {
##TODO here a configurable code must be implemented

my $title;
$main::lxdebug->message(LXDebug->DEBUG2(), "mk_render: object_id=".$self->object_id." object_type=".$self->object_type.
" file_type=".$self->file_type." json=".$json." filecount=".scalar(@{ $self->files })." is_global=".$self->is_global);
my @sources = $self->_get_sources();
foreach my $source ( @sources ) {
$main::lxdebug->message(LXDebug->DEBUG2(), "mk_render: source name=".$source->{name});
@{$source->{files}} = grep { $_->source eq $source->{name}} @{ $self->files };
}
if ( $self->file_type eq 'document' ) {
$title = $main::locale->text('Documents');
} elsif ( $self->file_type eq 'attachment' ) {
$title = $main::locale->text('Attachments');
} elsif ( $self->file_type eq 'image' ) {
$title = $main::locale->text('Images');
}

my $output = SL::Presenter->get->render(
$template,
title => $title,
SOURCES => \@sources,
edit_attachments => $edit,
object_type => $self->object_type,
object_id => $self->object_id,
file_type => $self->file_type,
is_global => $self->is_global,
json => $json,
);
if ( $json ) {
$self->js->html('#'.$self->file_type.'_list_'.$self->object_type, $output);
if ( $self->existing && scalar(@{$self->existing}) > 0) {
my $first = shift @{$self->existing};
my ($first_id,$sfile) = split('_',$first,2);
#$main::lxdebug->message(LXDebug->DEBUG2(), "id=".$first_id." sessionfile=". $sfile);
my $file = SL::File->get(id => $first_id );
$self->js->run('kivi.File.askForRename',$first_id,$file->file_name,$sfile,join (',', @{$self->existing}), $self->is_global);
}
$self->js->render();
} else {
$self->render(\$output, { layout => 0, process => 0 });
}
1;
} or do {
if ($json ){
$self->js->flash( 'error', t8('internal error (see details)'))
->flash_detail('error', $@)->render;
} else {
$self->render('generic/error', { layout => 0 }, label_error => $@);
}
};
}


sub _get_sources {
my ($self) = @_;
my @sources;
$main::lxdebug->message(LXDebug->DEBUG2(), "get_sources file_type=". $self->file_type);
if ( $self->file_type eq 'document' ) {
##TODO statt gen neue attribute in filetypes :
if (($file_types{$self->object_type}->{gen}*1 & 1)==1) {
my $gendata = {
'name' => 'created',
'title' => $main::locale->text('generated Files'),
'chk_action' => 'documents_delete',
'chk_title' => $main::locale->text('Delete Documents'),
'chkall_title' => $main::locale->text('Delete all'),
'file_title' => $main::locale->text('filename'),
'confirm_text' => $main::locale->text('delete'),
'can_rename' => 1,
'rename_title' => $main::locale->text('Rename Documents'),
'done_text' => $main::locale->text('deleted')
};
push @sources , $gendata;
}
if (($file_types{$self->object_type}->{gen}*1 & 2)==2) {
my @others = SL::File->get_other_sources();
$main::lxdebug->message(LXDebug->DEBUG2(), "other cnt=". scalar(@others));
foreach my $scanner_or_mailrx (@others) {
my $other = {
'name' => $scanner_or_mailrx->{name},
'title' => $main::locale->text('from \'#1\' imported Files',$scanner_or_mailrx->{description}),
'chk_action' => $scanner_or_mailrx->{name}.'_unimport',
'chk_title' => $main::locale->text('Unimport documents'),
'chkall_title' => $main::locale->text('Unimport all'),
'file_title' => $main::locale->text('filename'),
'confirm_text' => $main::locale->text('unimport'),
'can_rename' => 1,
'rename_title' => $main::locale->text('Rename Documents'),
'can_import' => 1,
'import_title' => $main::locale->text('Add Document from \'#1\'',$scanner_or_mailrx->{name}),
'path' => $scanner_or_mailrx->{directory},
'done_text' => $main::locale->text('unimported')
};
push @sources , $other;
}
}
}
elsif ( $self->file_type eq 'attachment' ) {
my $attdata = {
'name' => 'uploaded',
'title' => $main::locale->text(''),
'chk_action' => 'attachments_delete',
'chk_title' => $main::locale->text('Delete Attachments'),
'chkall_title' => $main::locale->text('Delete all'),
'file_title' => $main::locale->text('filename'),
'confirm_text' => $main::locale->text('delete'),
'can_rename' => 1,
'are_existing' => $self->existing ? 1 : 0,
'rename_title' => $main::locale->text('Rename Attachments'),
'can_upload' => 1,
'upload_title' => $main::locale->text('Upload Attachments'),
'done_text' => $main::locale->text('deleted')
};
push @sources , $attdata;
}
elsif ( $self->file_type eq 'image' ) {
my $attdata = {
'name' => 'uploaded',
'title' => $main::locale->text(''),
'chk_action' => 'images_delete',
'chk_title' => $main::locale->text('Delete Images'),
'chkall_title' => $main::locale->text('Delete all'),
'file_title' => $main::locale->text('filename'),
'confirm_text' => $main::locale->text('delete'),
'can_rename' => 1,
'are_existing' => $self->existing ? 1 : 0,
'rename_title' => $main::locale->text('Rename Images'),
'can_upload' => 1,
'upload_title' => $main::locale->text('Upload Images'),
'done_text' => $main::locale->text('deleted')
};
push @sources , $attdata;
}
$main::lxdebug->message(LXDebug->DEBUG2(), "get_sources count=".scalar(@sources));
return @sources;
}

1;

__END__

=pod

=encoding utf-8

=head1 NAME

SL::Controller::File - Controller for managing files


=head1 SYNOPSIS

=begin text

# The Controller is called direct from the webpages


<a href="controller.pl?action=File/list&file_type=document\
&object_type=[% HTML.escape(type) %]&object_id=[% HTML.url(id) %]">


# or indirect via javascript functions from js/kivi.File.js


kivi.popup_dialog({ url: 'controller.pl',
data: { action : 'File/ajax_upload',
file_type : 'uploaded',
object_type: type,
object_id : id
}
...

=end text


=head1 DESCRIPTION

This is a controller for handling files in a storage independent way.
The storage may be a Filesystem,a WebDAV, a Database or DMS.
These backends must be configered in ClientConfig.
This Controller use as intermediate layer for storage C<SL::File>.

The Controller is responsible to display forms for displaying the files at the ERP-objects and
for uploading and downloading the files.

More description of the intermediate layer see L<SL::File>.

=head1 METHODS

=head2 C<action_list>

This loads a list of files on a webpage. This can be done with a normal submit or via an ajax/json call.
Dependent of file_type different sources are available.

For documents there are the 'created' source and the imports from scanners or email.
For attachments and images only the 'uploaded' source available.

Available C<FORM PARAMS>:

=over 4

=item C<form.object_id>

The Id of the ERP-object.

=item C<form.object_type>

The Type of the ERP-object like "sales_quotation". A clear mapping to the class/model exists in the controller.

=item C<form.file_type>

For one ERP-object may exists different type of documents the type may be "documents","attachments" or "images".
This file_type is a filter for the list.

=item C<form.json>

The method can be used as normal HTTP-Request (json=0) or as AJAX-JSON call to refresh the list if the parameter is set to 1.

=back


=head2 C<action_ajax_upload>


A new file or more files can selected by a dialog and insert into the system.


Available C<FORM PARAMS>:

=over 4

=item C<form.file_type>

This parameter describe here the source for a new file :
"attachments" and "images"

This is a normal upload selection, which may be more then one file to upload.

=item C<form.object_id>

and

=item C<form.object_type>

are the same as at C<action_list>

=back

=head2 C<action_ajax_files_uploaded>

The Upload of selected Files. The "multipart_formdata" is parsed in SL::Request into the formsvariable "form.ATTACHMENTS".
The filepaths are checked about Unix and Windows paths. Also the MIME type of the files are verified ( IS the contents of a *.pdf real PDF?).
If the same filename still exists at this object after the download for each existing filename a rename dialog will be opened.

If the filename is not changed the new uploaded file is a new version of the file, if the name is changed it is a new file.

Available C<FORM PARAMS>:

=over 4

=item C<form.ATTACHMENTS.uploadfiles>

This is an array of elements which have {filename} for the name and {data} for the contents.

Also object_id, object_type and file_type

=back

=head2 C<action_download>

This is the real download of a file normally called via javascript "$.download("controller.pl", data);"

Available C<FORM PARAMS>:

=over 4

Also object_id, object_type and file_type

=back

=head2 C<action_ajax_importdialog>

A Dialog with all available and not imported files to import is open.
More then one file can be selected.

Available C<FORM PARAMS>:

=over 4

=item C<form.source>

The name of the source like "scanner1" or "email"

=item C<form.path>

The full path to the directory on the server, where the files to import can found

Also object_id, object_type and file_type

=back

=head2 C<action_ajax_delete>

Some files can be deleted

Available C<FORM PARAMS>:

=over 4

=item C<form.ids>

The ids of the files to delete. Only this files are deleted not all versions of a file if the exists

=back

=head2 C<action_ajax_unimport>

Some files can be unimported, dependent of the source of the file. This means they are moved
back to the directory of the source

Available C<FORM PARAMS>:

=over 4

=item C<form.ids>

The ids of the files to unimport. Only this files are unimported not all versions of a file if the exists

=back

=head2 C<action_ajax_rename>

One file can be renamed. There can be some checks if the same filename still exists at one object.


=head1 AUTHOR

Martin Helmling E<lt>martin.helmling@opendynamic.deE<gt>

=cut
(23-23/63)