package Libenz;
#
#Deprecated module, better use Prelib.pm or Basework.pm
# 
# SPDX-License-Identifier: AGPL-3.0-or-later
# Copyright (c) Rainer Gümpelein, TeilRad GmbH
#

use strict;
use warnings;
use POSIX;
use File::Path qw(make_path remove_tree);
use File::Copy;
use File::Copy::Recursive qw(fcopy rcopy dircopy fmove rmove dirmove);
use Getopt::Long;
use CGI; # only for debugging
use CGI::Carp qw(fatalsToBrowser);
use Calendar::Simple;
use Date::Calc qw(:all);
use Mod::Callib;
use Mod::Libenzdb;
use Mod::Buttons;
use Lib::Config;
use Digest::MD5 qw(md5 md5_hex);
use Scalar::Util qw(looks_like_number);

my $cf = new Config;
my $cb = new Callib;
my $but = new Buttons;
my $db = new Libenzdb;
my $q = new CGI;

#my $pi = new Image::Magick;
$q->import_names('R');

sub new {
 my $class = shift;
 my $self = {};
 bless($self,$class);
 return $self;
}

my %varenv = $cf->envonline();
my $lang="de";
my $now_time = strftime "%Y-%m-%d %H:%M", localtime;
my @months = $cb->monthmap();
my @days = $cb->daymap();

my $i_rows=0;
my $u_rows=0;
my $d_rows=0;
my $nall;

sub grep_filecontent(){
  my $self = shift;
  my ($filename,$content,$pattern) = @_;
  my $match = "";
  if (open(my $fh, '<:encoding(UTF-8)', $filename)) {
      while (my $row = <$fh>) {
	$row =~ s/\n//;
	$row =~ s/\r//;
 	if($content && $row eq $content){
          $match = $content;
 	}elsif($pattern && $row =~ /$pattern/){
          $match = $row;
	}
      }
  }
  return $match;
}

# calculates the distance between two latitude, longitude points
sub geo_fencing {
  my $self = shift;
  my ($lat1, $lon1, $lat2, $lon2) = @_;

  my $pi = atan2(1,1) * 4;

  if (($lat1 == $lat2) && ($lon1 == $lon2)) {
    return 0;
  }
  else {
    my $theta = $lon1 - $lon2;
    my $dist = sin($lat1 * $pi / 180) * sin($lat2 * $pi / 180) + cos($lat1 * $pi / 180) * cos($lat2 * $pi / 180) * cos($theta * $pi / 180);
    $dist = atan2(sqrt(1 - $dist**2), $dist);
    $dist = $dist * 180 / $pi;

    $dist = $dist * 60 * 1.1515;#Miles
    $dist = $dist * 1.609344 * 1000;#Meters
    $dist = sprintf('%.0f',$dist);
    return ($dist);
  }
}


sub country_code(){
 my $self = shift;
 my $country = {
  'DE' => 'Deutschland',
  'BE' => 'Belgien',
  'BG' => 'Bulgarien',
  'CH' => 'Schweiz',
  'CZ' => 'Tschechische Republik',
  'DK' => 'Dänemark',
  'EE' => 'Estland',
  'IE' => 'Irland',
  'EL' => 'Griechenland',
  'ES' => 'Spanien',
  'FR' => 'Frankreich',
  'HR' => 'Kroatien',
  'IT' => 'Italien',
  'CY' => 'Zypern',
  'LV' => 'Lettland',
  'LT' => 'Litauen',
  'LU' => 'Luxemburg',
  'HU' => 'Ungarn',
  'MT' => 'Malta',
  'NL' => 'Niederlande',
  'AT' => 'Österreich',
  'PL' => 'Polen',
  'PT' => 'Portugal',
  'RO' => 'Rumänien',
  'SI' => 'Slowenien',
  'SK' => 'Slowakei',
  'FI' => 'Finnland',
  'SE' => 'Schweden',
  'GB' => 'Vereinigtes Königreich'
 };
 return $country;
}


#read directory
sub read_dirfiles(){
 my $self = shift;
 my ($dir,$extensions,$dirOfile,$not) = @_;
 my @dirfiles;
 if( -d "$dir" || -l "$dir"){
  opendir(DIR, "$dir") or die "could not open $dir $!";
  foreach(sort(readdir(DIR))){
   if($dir =~ /INBOX/){
    if($_ =~ /^$extensions/){
     push(@dirfiles,$_) if(-f "$dir/$_" && $dirOfile eq "file");
     push(@dirfiles,$_) if(-d "$dir/$_" && $dirOfile eq "dir");
    }
   }
   elsif($not){
    if(uc($_) !~ /$extensions/){
     push(@dirfiles,$_) if(-f "$dir/$_" && $dirOfile eq "file");
     push(@dirfiles,$_) if(-d "$dir/$_" && $dirOfile eq "dir");
    }
   }else{
    if(uc($_) =~ /$extensions/ || $_ =~ /$extensions/){
     push(@dirfiles,$_) if(-f "$dir/$_" && $dirOfile eq "file");
     push(@dirfiles,$_) if(-d "$dir/$_" && $dirOfile eq "dir");
    }
   }

  }
  closedir DIR;
 }else{
	print "\ndirectory: $dir does not exist\n $!\n";
 }
 return @dirfiles; 
}

#return message
sub return_feedback(){
  my $self = shift;
  my ($return,$kind_of_trans,$owner,$terminal) = @_;

  if($owner > 0){
print<<EOF
  <script>
        \$(document).ready(function(){
         \$( "#retm" ).fadeOut(7000);
  })
  </script>
EOF
;
  $return = $R::return if($R::return);
  my ($ret_pm,$ret_pl,$ret_er) = split(/\|/,$return);
  my ($i_pm,$s_pm,$d_pm) = split(/-/,$ret_pm);
  my ($i_pl,$s_pl,$d_pl) = split(/-/,$ret_pl);
  my $pre = "";
  $kind_of_trans = "Transaktions" if(!$kind_of_trans);
  my $feedb = "";
  $feedb = "neue $pre Daten eingefügt" if($i_pm);
  $feedb = "insert successfully " if($i_pm && $varenv{html_lang} eq "en");
  $feedb = "$pre Daten gespeichert" if($s_pm);
  $feedb = "saved successfully" if($s_pm && $varenv{html_lang} eq "en");
  $feedb = "$pre Daten gelöscht" if($d_pm);
  $feedb = "deleted successfully" if($d_pm && $varenv{html_lang} eq "en");
  $feedb = "neue $kind_of_trans Daten eingefügt" if($i_pl);
  $feedb = "$kind_of_trans Daten gespeichert" if($s_pl);
  $feedb = "$kind_of_trans Daten gelöscht" if($d_pl);
  $feedb = "Artikel eingefügt" if($i_pl =~ /ctpos_id=\d+/);
  my $debug;
  $debug = "($ret_pm|$ret_pl)" if($owner eq "101");
  if($return !~ /failure/ && $feedb){
    print $q->div({-id=>'retm'},"$feedb $debug"),"\n";
  }
 }

 $return = $1 if($return =~ /(failure.*)/);
 return $return;
}


#Quersumme
sub quersum(){
  my $self = shift;
  my ($kecks) = @_;
  my $laenge = length($kecks);
  my $quersum = 0;
  for(my $i=0; $i<$laenge; $i++) {
    my $signs = substr($kecks, $i, 1);
    $quersum = $quersum + int(ord($signs));
  }
  return $quersum;
}


#Calfkt to get a scalable line of days per month
sub month_line(){
  my $self = shift;
  my ($users) = @_;

  #my $users = $db->select_users($u_id);
  my $hh;my $mm;
  my $day = strftime "%d", localtime;
  my $mon = strftime "%m", localtime;
  my $year = strftime "%Y", localtime;
  my $day_today = $day;
  my $mon_today = $mon;
  my $year_today = $year;

  ($year,$mon,$day,$hh,$mm) = &split_date("",$users->{cal_start}) if($users->{cal_start});
  #print "$year,$mon,$day,$hh,$mm";

  my $month_days = Days_in_Month($year,$mon);
  my $factor = 100 / $month_days;
  $factor = sprintf('%.3f',$factor);

  my @month = calendar($mon, $year);
  my $raster_mmpx = $factor . "%"; #bsp.: 100% / 31days
  my $day4month;
  my $bg;
  my @week;
  my $i=0;
  my $j=0;
  #month, week loop
  foreach (@month) {
    $i=0;
    $j++;
    #print map { $_ ? sprintf "%2d ", $_ : '&nbsp; x &nbsp;' } @$_;
    #day-of-week loop
    foreach(@$_){
      if($_){
        $_ = "0$_" if($_ < "10");
        $week[$j] .= "$_,";
        #print $q->th({-nowrap=>1},"$days[$i] $_");
        if("$_" eq "$day_today" && "$mon" eq "$mon_today"){
          $bg="#009899";
        }else{
          $bg="silver";
        }
        $day4month .= "<div style='float:left;min-width:$raster_mmpx;border-bottom: solid thin gray;background-color:$bg;height:1.5em;padding:0.3em 0em;' nowrap>|$days[$i] $_</div>\n";
     }
     $i++;
    }
  }

  my $daymarker = $raster_mmpx * ($day_today - 0.5);
  #my $daymarker = $raster_mmpx * $day_today;
  $daymarker .= "%";

  return ($daymarker,$raster_mmpx,$day4month);
}

#rent scale
sub rent_scale(){
  my $self = shift;
  my ($users,$year_st,$mon_st,$day_st,$hh_st,$mm_st,$year_en,$mon_en,$day_en,$hh_en,$mm_en) = @_;
  #print "<br />($u_id,$year_st,$mon_st,$day_st,$hh_st,$mm_st,$year_en,$mon_en,$day_en,$hh_en,$mm_en)<br />";
  #my $users = $db->select_users($u_id);
  my $hh;my $mm;
  my $day = strftime "%d", localtime;
  my $mon = strftime "%m", localtime;
  my $year = strftime "%Y", localtime;

  ($year,$mon,$day,$hh,$mm) = &split_date("",$users->{cal_start}) if($users->{cal_start});
  my $month_days = Days_in_Month($year,$mon);
  my $factor = 100 / $month_days;
  my @month = calendar($mon, $year);
  my $doy_mon_st=0;my $doy_mon_en=0;my $doy_st=0;my $doy_en=0;

  my $day_stpx = 0;
  my $rent_day_px = 0;
  if(looks_like_number($year_st) && looks_like_number($mon_st) && looks_like_number($day_st) && looks_like_number($year_en) && looks_like_number($mon_en) && looks_like_number($day_en)){

	#print "if(($year == $year_st) && ($mon == $mon_st)){<br>";
        if(($year == $year_st) && ($mon == $mon_st)){
          $doy_mon_st = Day_of_Year($year_st,$mon_st,1);#JahresTage bis Monatsanfang
          $doy_st = Day_of_Year($year_st,$mon_st,$day_st);
        }else{
          $doy_mon_st = Day_of_Year($year,$mon,1);
          $doy_st = Day_of_Year($year,$mon,1);
        }
        if(($year == $year_en) && ($mon == $mon_en)){
          $doy_en = Day_of_Year($year_en,$mon_en,$day_en);
	#}elsif($year_en && $mon_en){
	  #my $month_days_en = Days_in_Month($year_en,$mon_en);
	  #$doy_en = Day_of_Year($year_en,$mon_en,$month_days_en);
        }elsif($year && $mon){
          my $month_days_en = Days_in_Month($year,$mon);
          $doy_en = Day_of_Year($year,$mon,$month_days_en);# wenn ausserhalb --> cal_start
        }

        if(($mon != $mon_en) && ($mon != $mon_st)){
          $doy_mon_st=0;$doy_mon_en=0;$doy_st=0;$doy_en=0;
        }

        my $day_st_new = $doy_st - $doy_mon_st;
	#print "<br />$day_st_new = $doy_st - $doy_mon_st|";

        #day rent-duration
        my $rent_day = ($doy_en - $doy_st + 1);
	#print "$rent_day = ($doy_en - $doy_st + 1)<br>";
        #$rent_day_px = $rent_day * $multi if($doy_en && $doy_st);
        #$rent_day_px .= "px";
        $rent_day_px = $rent_day * $factor if($doy_en && $doy_st);
        $rent_day_px .= "%";

        #debug
        #print "$ct_n --- start: $day_st_new = $doy_st - $doy_mon_st | länge: $rent_day = $doy_en - $doy_st |<br>";

        #start day align left
        #$day_stpx = ($day_st_new + 0) * $multi if($day_st_new);
        #$day_stpx .= "px";
        $day_stpx = $day_st_new * $factor;
        $day_stpx .= "%";
  }

  #print "$day_stpx,$rent_day_px<br />";
  return ($day_stpx,$rent_day_px);
}

#check if barcodeable
sub barcodeable(){
 my $self = shift;
 my ($table,$number) = @_;
 my $oGdBar = GD::Barcode->new("Code39", "$number");
 my $ct_name = $oGdBar->{text};
 my $barcode = $oGdBar->{text};
 return ($ct_name,$barcode);
}

#TODO or change to barcode=c_id
#get free barcode
sub get_freenr(){
 my $self = shift;
 my ($table,$barcode_last) = @_;
 my $freenr = $db->collect_content3($table); 
 my $s_id = $barcode_last;
 my $e_id = "100000";
 $freenr->{$s_id}->{barcode} = "1000" if(!$freenr->{$s_id}->{barcode} || $freenr->{$s_id}->{barcode} == 0);
 for (; $s_id < $e_id; $s_id++){
  if($freenr->{$s_id}->{barcode} != $s_id){
   return $s_id;
  }
 }
}

#umst breaking date 16 19 %
sub umst_breaking(){
 my $self = shift;
 my $ctt = shift;
 my $now_dt = shift || "";#used by payone_cron.pl, because there is no mtime-update on start

 #invoice_time will be set by Printpreview.pm invoice generation!
 my $i_datetime = $now_dt || $ctt->{invoice_time} || $ctt->{mtime};
 my $umst1619 = 19;
    my ($i_date,$i_time) = split(/ /,$i_datetime);
    my ($yy,$mo,$dd) = split(/-/,$i_date);
 my $breaking_date = $yy . $mo . $dd;
 $umst1619 = 16 if($breaking_date >= 20200701 && $breaking_date < 20210101);
 return $umst1619;
}

#integer check
sub checkint(){
 my $self = shift;
 my ($int) = @_;
 $int =~ s/,/./;
 if($int =~ /([-\d]+)\.(\d+)/){
   $int = "$1" . "." . "$2";
 }elsif($int =~ /([-\d]+)/){
   $int = "$1";
 }
 return $int;
}

# input character check
sub checkinput(){
 my $self = shift;
 my $node_name = shift;
 if($node_name =~ /^[a-zA-Z0-9äöüÄÖÜ_\-\.\ ]+$/){
  return 0;
 }else{
  return "failure::Für die Menue- Ordner Benennung sind nur alphanumerische Zeichen und - . erlaubt ($node_name).";
 }
}


# input date check. returns english date and 1 if true
sub true_date(){
 my $self = shift;
 my ($date,$time) = @_;
 $date =~ s/,/./g;
 my $d_chck = 0;

 if($date =~ /(\d{4})-(\d{2})-(\d{2})/){
   $d_chck = 1 if(check_date($1,$2,$3));
   $date = "$1-$2-$3";
 }elsif($date =~ /(\d{2})\.(\d{2})\.(\d{4})/){
   $d_chck = 1 if(check_date($3,$2,$1));
   $date = "$3-$2-$1";
 }
 return ($date,$d_chck);
}


# input date check
sub checkdate(){
 my $self = shift;
 my ($date,$time) = @_;
 $date =~ s/,/./g;
 my $d_chck = 1;
 my ($c_dd,$c_mm,$c_yy);


 if($date =~ /(\d{4})-(\d+)-(\d+)/){
   $d_chck = 0 if(check_date($1,$2,$3));
   $date = "$1-$2-$3";
 }elsif($date =~ /(\d+)\.(\d+)\.(\d+)/){
   $d_chck = 0 if(check_date($3,$2,$1));
   $date = "$1.$2.$3";
 }
 return ($date,$d_chck);
}



#collect node_name and builds path
sub make_uri2(){
 my $self = shift;
 my ($main_id,$lang,$mandantsub_id,$start_id) = @_;
 my $gpath;
 my $m_id;
 my @genpath;
 my $i=$1 if($main_id =~ /^(\d)/);
 foreach my $id (sort {$nall->{$b}->{main_id} <=> $nall->{$a}->{main_id}} keys (%$nall)){
    #print "xxxx ($main_id =~ /^($i\d+)/) && ($start_id && $main_id >= $start_id) && ($main_id == $nall->{$id}->{main_id})<br>";
    if(($main_id =~ /^($i\d+)/) && ($start_id && $main_id >= $start_id) && ($main_id == $nall->{$id}->{main_id})){
	## wegen multible mandanten sub-sub-level, bsp. Waren/[300] Sonstiges
	if($mandantsub_id && $i==3){
 	  if($mandantsub_id == $nall->{$id}->{parent_id}){
	  	$i--;
	  	$main_id = $nall->{$id}->{parent_id};
		$m_id = $nall->{$id}->{main_id} if(!$m_id);
		$genpath[$i] = "/$nall->{$id}->{node_name}";
		#print "$i x/$nall->{$id}->{node_name} ($nall->{$id}->{main_id})<br />";
	  }
	##
	}else{
	  $i--;
	  $main_id = $nall->{$id}->{parent_id};
	  $main_id = $start_id if($start_id && $i==1);
	  $m_id = $nall->{$id}->{main_id} if(!$m_id);
	  $genpath[$i] = "/$nall->{$id}->{node_name}";
	  #print "$i /$nall->{$id}->{node_name} ($nall->{$id}->{main_id})<br />";
	}
    }
 }

 foreach (@genpath){
  #print "$_|";
  $_ =~ s/\/root//;
  $gpath .= "$_";
 }
 return ("$m_id","$gpath");
}

#new init for make_uri3 with returning nall object
sub init_nodes5uri(){
  my $self = shift;
  $nall = $db->collect_node4all();
  return $nall;
}

#5. collect node_name and builds path without mandant-logic
sub make_uri5(){
 my $self = shift;
 my ($main_id,$nall,$depth_start) = @_;
 $depth_start = 0 if(!$depth_start);
 my $gpath;
 my $m_id;
 my @genpath;
 my $depth=$1 if($main_id =~ /^(\d)/ && $main_id >= 100000);
 foreach my $id (sort {$nall->{$b}->{main_id} <=> $nall->{$a}->{main_id}} keys (%$nall)){
    if(($main_id =~ /^($depth\d+)/) && ($main_id == $nall->{$id}->{main_id})){
         $depth--;
         $main_id = $nall->{$id}->{parent_id};
         $m_id = $nall->{$id}->{main_id} if(!$m_id);
         $genpath[$depth] = "/$nall->{$id}->{node_name}" if($depth > $depth_start);
         #print "$depth|$main_id /$nall->{$id}->{node_name} ($nall->{$id}->{main_id})<br />";
    }
 }

 foreach (@genpath){
  #print "$_|";
  $_ =~ s/\/root//;
  $gpath .= "$_";
 }
 return ("$m_id","$gpath");
}


sub sub4txt(){
 my $self = shift;
 my ($txt,$index,$length,$cut,$cut_last) = @_;
     my $substrtxt = substr($txt, $index, $length);
     #$substrtxt =~ s/<br \/>/\n/g;
     #$substrtxt =~ s/<b.?//g;
     #$substrtxt =~ s/\/>//g;
     #$substrtxt =~ s/^[<|\\|\/|>|:|,|\.|\\n]+//g;
     #$substrtxt =~ s/^\w+\s// if($index > 20);
    
     #entferne das erste teil-wort ...
     if($cut){
     	$substrtxt =~ s/^[äöü]+//;
     	$substrtxt =~ s/^\w+//;
     	$substrtxt =~ s/^\,//;
     	$substrtxt =~ s/^\.//;
     }

     #entferne das letzte teil-wort ...
     if($cut_last){
     	$substrtxt =~ s/[äöü]+$//;
     	$substrtxt =~ s/\w+$//;
     	$substrtxt =~ s/\,$//;
     	$substrtxt =~ s/\.$//;
     }

     #entferne das letzte teil-wort ...
     if($index && ($index > $length)){
     	$substrtxt =~ s/\w+$//;     
     }
     #$substrtxt =~ s/\s\w+$//;
 return $substrtxt; 
}

sub newline(){
 my $self = shift;
 my $txtxx = shift;
 my $not_used = shift || "";#old
 my $editor = shift || "";
 $txtxx =~ s/\r\n/<br \/>/g if(!$editor);
 $txtxx =~ s/\n/<br \/>/g if(!$editor);
 return $txtxx;
}

#der tiny_mce editor init
sub wyedit(){
 my $self = shift;
 my ($users_tiny_mce) = @_;
 my $wy="";
 if($varenv{js4tiny_mce} && $users_tiny_mce){
  $wy = "<script type='text/javascript'>
  tinyMCE.init({
        theme : \"advanced\",
        mode : \"textareas\",
  });
  </script>";
 }
 return $wy;
}

#Komplettset compset logic
sub compsum(){
 my $self = shift;
 my ($main_id,$lang,$owner) = @_;
 my $ct4rel = $db->collect_ct4rel("content",$main_id,$lang);#hash
 my $ctpers4rel = $db->collect_ctpers4rel($main_id,$lang,$owner);#hash
 %$ct4rel = (%$ctpers4rel, %$ct4rel);#hash slice
 return $ct4rel;
}


# Rounding like "Kaufmannsrunden"
# Descr. http://de.wikipedia.org/wiki/Rundung
# Inspired by
# http://www.perl.com/doc/FAQs/FAQ/oldfaq-html/Q4.13.html
sub round(){
 my $self = shift;
 my ($amount) = @_;
 $amount = $amount * (10**(2));
 my $rounded = int($amount + .5 * ($amount<=> 0)) / (10**(2));
 return $rounded;
}

#rounding to half or integer 
sub round_half(){
 my $self = shift;
 my $amount = shift;
 $amount = $amount * (10**(2));
 my $rounded = int($amount + .5 * ($amount<=> 0)) / (10**(2));
 if($rounded =~ /\.\d+/){
 	$rounded = sprintf('%.2f',$rounded);
	  my $int = 0;
          ($int, my $dez) = split(/\./,$rounded) if($rounded =~ /\.\d/);
 	  if($dez > 0 && $dez <= 50){
            $dez = 50;
	  }
          elsif($dez > 50 && $dez <= 99){
            $dez = 00;
            $int++;
          }
          $rounded = $int . "." . $dez;
 }
 return $rounded;
}

#split date (moved partly to Callib)
sub split_date(){
 my $self = shift;
 my ($time_db) = @_;
 $time_db =~ s/:\d{2}\..*$// if($time_db);
 my ($date,$time) = split(/ /,$time_db);
 my ($yy,$mo,$dd);
 ($yy,$mo,$dd) = split(/-/,$date) if($date =~ /\d{4}-/);
 ($dd,$mo,$yy) = split(/\./,$date) if($date =~ /\d{2}\./);
 my ($hh,$mi) = split(/\:/,$time);
 return ($yy,$mo,$dd,$hh,$mi);
}

#time and date format for DE (moved partly to Callib)
sub time4de(){
 my $self = shift;
 my ($time_db,$hhmi,$decode) = @_;
 $time_db =~ s/:\d{2}\..*$// if($time_db);
 my ($date,$time) = split(/ /,$time_db);
 my ($yy,$mo,$dd) = split(/-/,$date);
 my ($hh,$mi) = split(/\:/,$time);
 my $date_de = "&nbsp;";
 $date_de = "$dd.$mo.$yy";
 $date_de = "$dd.$mo.$yy $hh:$mi" if($hhmi);

 #Deutsch     (German)       ==>    3
 $date_de = Date_to_Text_Long($yy,$mo,$dd,3) if($decode eq "Date_to_Text_Long");
 $date_de =~ s/M.*rz/März/;
 return $date_de;
}

#error window
sub failure(){
 my $self = shift;
 my ($failure,$back) = @_;
 print "<div id='Inhalt3'>\n";
 print $q->div("$failure"); 
 print $q->div($q->a({-class=>"linknav3",-href=>'javascript:history.back()'}, "[ $back ]")) if($back);
 print "</div>\n";
 exit 0;
}

sub failure2(){
 my $self = shift;
 my ($failure,$back) = @_;
 print "<div style='background-color:white;'>\n";
 print $q->div("$failure"); 
 print $q->div($q->a({-class=>"linknav3",-href=>'javascript:history.back()'}, "[ $back ]")) if($back);
 print "</div>\n";
 #exit 0;
}

sub failure3(){
 my $self = shift;
 my ($failure,$back) = @_;
 print "<div style='padding:0 1em;background-color:red;color:white;'>\n";
 print $q->div("$failure"); 
 print $q->div($q->a({-class=>"linknav3",-href=>'javascript:history.back()'}, "[ $back ]")) if($back);
 print "</div>\n";
}

#for site-head navigation with breadcrumb and close button
sub pathrun(){
 my $self = shift;
 my $path = shift;
 my @menu = ("");
 if($path =~ /^\/(.*)/){
  @menu = split /\//,$1;
 }
 my $node_active;
 my $crumb;
 my $h=0;
 my $backlink;
 foreach(@menu){
  $node_active=$_;
  $crumb = "<a style='text-decoration:none;' href='/$menu[0]'>$menu[0]</a>" if($h==0);
  $backlink = "/" if($h==0);
  $crumb .= " | <a style='text-decoration:none;' href='/$menu[0]/$menu[1]'>$menu[1]</a>" if($h==1);
  $backlink = "/$menu[0]#$menu[1]" if($h==1);
  #cut long link-name
  my $length=length($menu[2]);
  my $cut_last;
  $cut_last = 1 if($length >= 30);
  my $menu2 = &sub4txt("",$menu[2],0,30,"","$cut_last");
  $crumb .= " | <a style='text-decoration:none;' href='/$menu[0]/$menu[1]/$menu[2]'>$menu2</a>" if($h==2);
  $backlink = "/$menu[0]/$menu[1]#$menu[2]" if($h==2);
  $h++;
 }
 return ("$node_active","$crumb","$backlink");
}

1;