#=====================================================================
# Lx-Office ERP
# Copyright (c) 2004
#
#  Author: Philip Reetz
#   Email: p.reetz@linet-services.de
#     Web: http://www.lx-office.org
#
#
# This program 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.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#======================================================================
#
# Datev export module
#======================================================================

package DATEV;

use Data::Dumper;

sub get_datev_stamm {
  $main::lxdebug->enter_sub();

  my ($self, $myconfig, $form) = @_;

  # connect to database
  my $dbh = $form->dbconnect($myconfig);

  $query = qq|SELECT * FROM datev|;
  $sth = $dbh->prepare($query);
  $sth->execute || $form->dberror($query);

  my $ref = $sth->fetchrow_hashref(NAME_lc);
  
  map { $form->{$_} = $ref->{$_} } keys %$ref;
  
  $sth->finish;
  $dbh->disconnect;
  $main::lxdebug->leave_sub();
}


sub save_datev_stamm {
  $main::lxdebug->enter_sub();

  my ($self, $myconfig, $form) = @_;

  # connect to database
  my $dbh = $form->dbconnect_noauto($myconfig);

  $query = qq|DELETE FROM datev|;
  $dbh->do($query) || $form->dberror($query);

  $query = qq|INSERT INTO datev
              (beraternr, beratername, dfvkz, mandantennr, datentraegernr, abrechnungsnr) VALUES
              (|.$dbh->quote($form->{beraternr}).qq|,|.$dbh->quote($form->{beratername}).qq|,|.$dbh->quote($form->{dfvkz}).qq|,
              |.$dbh->quote($form->{mandantennr}).qq|,|.$dbh->quote($form->{datentraegernr}).qq|,|.$dbh->quote($form->{abrechnungsnr}).qq|)|;
  $sth = $dbh->prepare($query);
  $sth->execute || $form->dberror($query);
  $sth->finish;
  
  $dbh->commit;
  $dbh->disconnect;
  $main::lxdebug->leave_sub();
}
    
sub kne_export {
  $main::lxdebug->enter_sub();

  my ($self, $myconfig, $form) = @_;
  my $rc;

  if ($form->{exporttype}==0) {
    $rc = &kne_buchungsexport($myconfig, $form);
  } else {
    $rc = &kne_stammdatenexport($myconfig, $form);
  }

  $main::lxdebug->leave_sub();

  return $rc;
}


sub obe_export {
  $main::lxdebug->enter_sub();

  my ($self, $myconfig, $form) = @_;

  # connect to database
  my $dbh = $form->dbconnect_noauto($myconfig); 
  $dbh->commit;
  $dbh->disconnect;
  $main::lxdebug->leave_sub();
}

sub get_dates {
  $main::lxdebug->enter_sub();

  my ($zeitraum, $monat, $quartal, $transdatefrom, $transdateto) = @_;
  
  $fromto="transdate >= ";
  
  my @a = localtime; $a[5] += 1900;
  $jahr=$a[5];
  if ($zeitraum eq "monat") {
     SWITCH: {
    	$monat eq "1" && do {
      					$form->{fromdate}="1.1.$jahr";
				      	$form->{todate}="31.1.$jahr";
					last SWITCH;
    					};
    	$monat eq "2" && do {
      					$form->{fromdate}="1.2.$jahr";
					#this works from 1901 to 2099, 1900 and 2100 fail.
					$leap=($jahr % 4 == 0) ? "29" : "28";
				      	$form->{todate}="$leap.2.$jahr";
					last SWITCH;
    					};
    	$monat eq "3" && do {
      					$form->{fromdate}="1.3.$jahr";
				      	$form->{todate}="31.3.$jahr";
					last SWITCH;
    					};
    	$monat eq "4" && do {
      					$form->{fromdate}="1.4.$jahr";
				      	$form->{todate}="30.4.$jahr";
					last SWITCH;
    					};
    	$monat eq "5" && do {
      					$form->{fromdate}="1.5.$jahr";
				      	$form->{todate}="31.5.$jahr";
					last SWITCH;
    					};
    	$monat eq "6" && do {
      					$form->{fromdate}="1.6.$jahr";
				      	$form->{todate}="30.6.$jahr";
					last SWITCH;
    					};
    	$monat eq "7" && do {
      					$form->{fromdate}="1.7.$jahr";
				      	$form->{todate}="31.7.$jahr";
					last SWITCH;
    					};
    	$monat eq "8" && do {
      					$form->{fromdate}="1.8.$jahr";
				      	$form->{todate}="31.8.$jahr";
					last SWITCH;
    					};
    	$monat eq "9" && do {
      					$form->{fromdate}="1.9.$jahr";
				      	$form->{todate}="30.9.$jahr";
					last SWITCH;
    					};
    	$monat eq "10" && do {
      					$form->{fromdate}="1.10.$jahr";
				      	$form->{todate}="31.10.$jahr";
					last SWITCH;
    					};
    	$monat eq "11" && do {
      					$form->{fromdate}="1.11.$jahr";
				      	$form->{todate}="30.11.$jahr";
					last SWITCH;
    					};
    	$monat eq "12" && do {
      					$form->{fromdate}="1.12.$jahr";
				      	$form->{todate}="31.12.$jahr";
					last SWITCH;
    					};
        }
    $fromto .= "'".$form->{fromdate}."' and transdate <= '".$form->{todate}."'";
  }
  
  elsif ($zeitraum eq "quartal") {
    if ($quartal==1) {
    $fromto .= "'01.01.".$jahr."' and transdate <= '31.03.".$jahr."'";
    }
    elsif ($quartal==2) {
    $fromto .= "'01.04.".$jahr."' and transdate <= '30.06.".$jahr."'";
    }
    elsif ($quartal==3) {
    $fromto .= "'01.07.".$jahr."' and transdate <= '30.09.".$jahr."'";
    }
    elsif ($quartal==4) {
    $fromto .= "'01.10.".$jahr."' and transdate <= '31.12.".$jahr."'";
    }
  }
  
  elsif ($zeitraum eq "zeit") {
    $fromto .= "'".$transdatefrom."' and transdate <= '".$transdateto."'";
  }

  $main::lxdebug->leave_sub();

  return $fromto;
}

sub get_transactions {
  $main::lxdebug->enter_sub();

  my ($myconfig, $form, $fromto) = @_;

  # connect to database
  my $dbh = $form->dbconnect($myconfig);
  
  $fromto =~ s/transdate/ac\.transdate/g;
  
  $query = qq|SELECT taxkey, rate FROM tax|;
  $sth = $dbh->prepare($query);
  $sth->execute || $form->dberror($query);
  
  while (my $ref = $sth->fetchrow_hashref(NAME_lc)) {
    $taxes{$ref->{taxkey}} = $ref->{rate};
  }  
  
  $sth->finish();  
  
  $query = qq|SELECT ac.oid, ac.transdate, ac.trans_id,ar.id, ac.amount, ac.taxkey, ar.invnumber, ar.duedate, ar.amount as umsatz,
              ct.name, c.accno, c.taxkey_id as charttax, c.datevautomatik, c.id, t.chart_id, t.rate FROM acc_trans ac,ar ar, customer ct,
              chart c LEFT JOIN tax t ON
                 (t.chart_id=c.id)WHERE $fromto AND ac.trans_id=ar.id AND ac.trans_id=ar.id
              AND ar.customer_id=ct.id AND ac.chart_id=c.id
              UNION ALL
              SELECT ac.oid, ac.transdate, ac.trans_id,ap.id, ac.amount, ac.taxkey, ap.invnumber, ap.duedate, ap.amount as umsatz,
              ct.name, c.accno, c.taxkey_id as charttax, c.datevautomatik, c.id, t.chart_id, t.rate FROM acc_trans ac, ap ap, vendor ct, chart c LEFT JOIN tax t ON
                 (t.chart_id=c.id)
              WHERE $fromto AND ac.trans_id=ap.id AND ap.vendor_id=ct.id AND ac.chart_id=c.id
              UNION ALL
              SELECT ac.oid, ac.transdate, ac.trans_id,gl.id, ac.amount, ac.taxkey, gl.reference AS invnumber, gl.transdate AS duedate, ac.amount as umsatz,
              gl.description AS name, c.accno,  c.taxkey_id as charttax, c.datevautomatik, c.id, t.chart_id, t.rate FROM acc_trans ac, gl gl,
              chart c LEFT JOIN tax t ON
                 (t.chart_id=c.id) WHERE $fromto AND ac.trans_id=gl.id AND ac.chart_id=c.id
              ORDER BY trans_id, oid|;
 
  $sth = $dbh->prepare($query);
  $sth->execute || $form->dberror($query);
  $i=0;
  $g=0;
  @splits;
  while (my $ref = $sth->fetchrow_hashref(NAME_lc)) {
    $count=0;
    $firstrun = 1;
    $count += $ref->{amount};
    push @{ $i}, $ref;
    while (abs($count)> 0.01 || $firstrun) {
      $ref2 = $sth->fetchrow_hashref(NAME_lc);
      last unless ($ref2);
      $count += $ref2->{amount};
      push @{ $i}, $ref2;
      $firstrun = 0;
    }
    $absumsatz = 0;
    if (scalar(@ {$i}) >2) {
      for my $j (0 .. (scalar(@ {$i}) -1)) {
        if (abs($i->[$j]->{'amount'}) > abs($absumsatz)) {
          $absumsatz = $i->[$j]->{'amount'};
          $notsplitindex = $j;
        }
      }
      $ml = ($i->[0]->{'umsatz'} > 0) ? 1 : -1;
      for my $j (0 .. (scalar(@ {$i}) -1)) {
        if (($j != $notsplitindex) && ($i->[$j]->{'chart_id'} eq "") && ($i->[$j]->{'taxkey'} eq "" || $i->[$j]->{'taxkey'} eq "0" || $i->[$j]->{'taxkey'} eq "1" || $i->[$j]->{'taxkey'} eq "10" || $i->[$j]->{'taxkey'} eq "11")) {
          my %blubb = {};
          map({ $blubb{$_} = $i->[$notsplitindex]->{$_}; } keys(%{ $i->[$notsplitindex] }));
          $absumsatz += $i->[$j]->{'amount'};
          $blubb{'amount'} = $i->[$j]->{'amount'} * (-1);
          $blubb{'umsatz'} = abs($i->[$j]->{'amount'}) * $ml;
          $i->[$j]->{'umsatz'} = abs($i->[$j]->{'amount'}) * $ml;
          push @{$splits[$g]}, \%blubb; #$i->[$notsplitindex];
          push @{$splits[$g]}, $i->[$j];
          push @{ $form->{DATEV} }, \@{$splits[$g]};
          $g++;
        } elsif (($j != $notsplitindex) && ($i->[$j]->{'chart_id'} eq "")) {
          $absumsatz += ($i->[$j]->{'amount'} * (1 + $taxes{$i->[$j]->{'taxkey'}}));
          my %blubb = {};
          map({ $blubb{$_} = $i->[$notsplitindex]->{$_}; } keys(%{ $i->[$notsplitindex] }));
          $test = 1+ $taxes{$i->[$j]->{'taxkey'}};          
          $blubb{'amount'} = $form->round_amount(($i->[$j]->{'amount'} * $test * -1),2);
          
          #print(STDERR $test, " Taxrate\n\n");
          $blubb{'umsatz'} = abs($form->round_amount(($i->[$j]->{'amount'} * $test),2)) *$ml;
          
          $i->[$j]->{'umsatz'} = abs($form->round_amount(($i->[$j]->{'amount'} * $test),2)) *$ml;
          
          #print(STDERR $i->[$j]->{'umsatz'}, " Steuer Umsatz\n");
          #print(STDERR $i->[$j]->{'amount'}, " Steuer Betrag\n");
          #print(STDERR $blubb{'umsatz'}, " Umsatz NOTSPLIT\n");
          push @{$splits[$g]}, \%blubb;
          push @{$splits[$g]}, $i->[$j];
          push @{ $form->{DATEV} }, \@{$splits[$g]};
          $g++;
        } else {
          next;
        }
      }
      if (abs($absumsatz) > 0.01) {
        print(STDERR $absumsatz, "ABSAUMSATZ\n");
        $form->error("Datev-Export fehlgeschlagen!");
      }
    } else {
      push @{ $form->{DATEV} }, \@{ $i};          
    }
    $i++;
  }
  $sth->finish;
  $dbh->disconnect;
  
  $main::lxdebug->leave_sub();
}

sub make_kne_data_header {
  $main::lxdebug->enter_sub();

  my ($myconfig, $form, $fromto) = @_;
  
  # connect to database
  my $dbh = $form->dbconnect($myconfig);

  my @a = localtime;
  $jahr=$a[5];    

  #Header
  $anwendungsnr = ($fromto) ? "\x31\x31" : "\x31\x33" ;
  while (length($form->{datentraegernr})<3) {
    $form->{datentraegernr}= "\x30".$form->{datentraegernr};
  }
  
  $header="\x1D\x18\x31".$form->{datentraegernr}.$anwendungsnr;

  $dfvkz=$form->{dfvkz};
  while (length($dfvkz)<2) {
     $dfvkz = "\x30".$dfvkz;
  }
  $header .= $dfvkz;

  $beraternr=$form->{beraternr};
  while (length($beraternr)<7) {
    $beraternr = "\x30".$beraternr;
  }
  $header .= $beraternr;

  $mandantennr=$form->{mandantennr};
  while (length($mandantennr)<5) {
    $mandantennr = "\x30".$mandantennr;
  }
  $header .= $mandantennr;

  $abrechnungsnr=$form->{abrechnungsnr}.$jahr;
  while (length($abrechnungsnr)<6) {
    $abrechnungsnr = "\x30".$abrechnungsnr;
  }
  $header .= $abrechnungsnr;

  $fromto =~ s/transdate|>=|and|\'|<=//g;
  my ($from, $to) = split /   /, $fromto;
  $from =~ s/ //g;
  $to =~ s/ //g;

  if ($from ne "") {
    my ($fday, $fmonth, $fyear) = split /\./, $from;
    if (length($fmonth) < 2) {
      $fmonth = "0".$fmonth;
    }
    if (length($fday) < 2) {
      $fday = "0".$fday;
    }
    $from = $fday.$fmonth.substr($fyear, -2, 2);
  } else {$from="";}

  $header .= $from;

  if ($to ne "") {
    my ($tday, $tmonth, $tyear) = split /\./, $to;
    if (length($tmonth) <2) {
      $tmonth = "0".$tmonth;
    }
    if (length($tday) <2) {
      $tday = "0".$tday;
    }
    $to = $tday.$tmonth.substr($tyear, -2, 2);
  } else {$to="";}
  $header .= $to;
  if ($fromto ne "") {
    $primanota = "\x30\x30\x31";
    $header .= $primanota;
  }

  $passwort=$form->{passwort};
  while (length($passwort)<4) {
    $passwort = "\x30".$passwort;
  }
  $header .= $passwort;  

  $anwendungsinfo = "\x20" x 16;
  $header .= $anwendungsinfo;
  $inputinfo = "\x20" x 16;
  $header .= $inputinfo;
  
  $header .= "\x79";
  
  #Versionssatz
  if ($form->{exporttype}==0) {
    $versionssatz= "\xB5"."1,";
  } else {
    $versionssatz= "\xB6"."1,";}
    
    
  $query = qq| select accno from chart limit 1|;
  $sth=$dbh->prepare($query);
  $sth->execute || $form->dberror($query);
  my $ref = $sth->fetchrow_hashref(NAME_lc);
  
  $accnolength = $ref->{accno};
  $sth->finish;
  
  $versionssatz .= length($accnolength);
  $versionssatz .= ",";
  $versionssatz .= length($accnolength);
  $versionssatz .= ",SELF"."\x1C\x79";
    
  $dbh->disconnect;

  $header .= $versionssatz;

  $main::lxdebug->leave_sub();

  return $header;
}

sub datetofour {
  $main::lxdebug->enter_sub();

  my ($date, $six) = @_;
  
  ($day, $month, $year) = split /\./, $date;

  if ($day =~ /^0/) {
    $day = substr($day,1,1);
  }
  if (length($month) <2) {
    $month = "0".$month;
  }  
  if (length($year) >2) {
    $year = substr($year, -2, 2);
  }
  
  if ($six) {
    $date= $day.$month.$year;
  } else {
    $date= $day.$month;
  }

  $main::lxdebug->leave_sub();

  return $date;
}

sub formatumsatz {
  $main::lxdebug->enter_sub();

  my ($umsatz, $stellen) = @_;
  
  $umsatz =~ s/-//;
  ($vorkomma, $nachkomma) = split /\./, $umsatz;
  $umsatz="";
  if ($stellen>0) {
    for ($i=$stellen; $i >= $stellen+2 - length($vorkomma); $i--) {
      $umsatz .="0";
    }
  }
  for ($i=3; $i > length($nachkomma); $i--) {
    $nachkomma .= "0";
  }
  $umsatz = $vorkomma.substr($nachkomma,0,2);

  $main::lxdebug->leave_sub();

  return $umsatz;
}

sub make_ed_versionset {
  $main::lxdebug->enter_sub();

  my ($header, $filename, $blockcount, $fromto) = @_;
  
  $versionset="V".substr($filename,2,5);
  $versionset.=substr($header,6,22);
  if ($fromto ne "") {
  $versionset.="0000".substr($header,28,19);
  } else { $datum= "\x20" x 16;
           $versionset .= $datum."001".substr($header,28,4);
         }
  while (length($blockcount) <5) {
    $blockcount= "0".$blockcount;
  }
  $versionset.=$blockcount;
  $versionset.="001";
  $versionset.="\x20\x31";
  $versionset.= substr($header,-12,10)."    ";
  $versionset.= "\x20" x 53;
  
  $main::lxdebug->leave_sub();

  return $versionset;
}

sub make_ev_header {
  $main::lxdebug->enter_sub();

  my ($form, $fileno) = @_;
  $datentraegernr=$form->{datentraegernr};
  $beraternummer=$form->{beraternr};
  $beratername=$form->{beratername};
  $anzahl_dateien=$fileno;
  
  while (length($datentraegernr) <3) {
   $datentraegernr.= " ";
  }

  while (length($beraternummer) <7) {
    $beraternummer.=" ";
  }
  
  while (length($beratername) <9) {
    $beratername.= " ";
  }
  
  while (length($anzahl_dateien) <5) {
    $anzahl_dateien = "0".$anzahl_dateien;
  }
 
  
  $ev_header=$datentraegernr."\x20\x20\x20".$beraternummer.$beratername."\x20";
  $ev_header.=$anzahl_dateien.$anzahl_dateien;
  $ev_header.= "\x20" x 95;
  
  
  $main::lxdebug->leave_sub();

  return $ev_header;
}

sub kne_buchungsexport {
  $main::lxdebug->enter_sub();

  my ($myconfig, $form) = @_;
  
  my $export_path="datev/";
  my $filename="ED00000";
  my $evfile="EV01";
  my @ed_versionsets;
  my $fileno=0;
  
  $fromto= &get_dates($form->{zeitraum}, $form->{monat}, $form->{quartal}, $form->{transdatefrom}, $form->{transdateto});
  &get_transactions($myconfig, $form, $fromto);

  while (scalar(@{ $form->{DATEV}})) {
    my $blockcount=1;
    my $remaining_bytes=256;
    my $total_bytes=256;
    my $umsatzsumme=0;
    my $buchungssatz = "";
    $filename++;
    my $ed_filename= $export_path.$filename;
    open (ED, "> $ed_filename") or die "can't open outputfile: $!\n";
    $header=&make_kne_data_header($myconfig, $form, $fromto);
    $remaining_bytes -= length($header);
    
    while (scalar(@{ $form->{DATEV}})>0) {
      $transaction = shift @{ $form->{DATEV}};
      $trans_lines = scalar(@ {$transaction});
      $umsatz =0;
      $gegenkonto="";
      $konto="";
      $belegfeld1="";
      $datum="";
      $waehrung="";
      $buchungstext="";
      $belegfeld2="";
      $datevautomatik=0;
      $taxkey=0;
      $charttax=0;
      %umlaute = ('ä' => 'ae', 'ö' => 'oe', 'ü' => 'ue', 'Ä' => 'Ae', 'Ö' => 'Oe', 'Ü' => 'Ue', 'ß' => 'sz');
      
      for (my $i=0; $i <$trans_lines; $i++) {
        if (abs($transaction->[$i]->{'umsatz'}) > abs($umsatz)) {
          $umsatz = $transaction->[$i]->{'umsatz'};
        }
        if ($transaction->[$i]->{'datevautomatik'}) {
          $datevautomatik=1;
        }
        if ($transaction->[$i]->{'taxkey'}) {
          $taxkey = $transaction->[$i]->{'taxkey'};
        }
        if ($transaction->[$i]->{'charttax'}) {
          $charttax = $transaction->[$i]->{'charttax'};
        }       
        if (($transaction->[$i]->{'id'} eq $transaction->[$i]->{'chart_id'}) && ($trans_lines > 2)) {
          undef($transaction->[$i]);
        } elsif ($transaction->[$i]->{'amount'} >0) {
          $haben = $i;
        } else {
          $soll = $i;
        }
      }
      
      $umsatzsumme += $umsatz;

      # Umwandlung von Umlauten und Sonderzeichen in erlaubte Zeichen bei Textfeldern     
      foreach $umlaut (keys(%umlaute)) {
        $transaction->[$haben]->{'invnumber'} =~ s/${umlaut}/${umlaute{$umlaut}}/g;
        $transaction->[$haben]->{'name'} =~ s/${umlaut}/${umlaute{$umlaut}}/g;
      }
      
      $transaction->[$haben]->{'invnumber'} =~ s/[^0-9A-Za-z\$\%\&\*\+\-\/]//g;
      $transaction->[$haben]->{'name'} =~ s/[^0-9A-Za-z\$\%\&\*\+\-\ \/]//g;


      $transaction->[$haben]->{'invnumber'} = substr($transaction->[$haben]->{'invnumber'}, 0, 12);
      $transaction->[$haben]->{'name'} = substr($transaction->[$haben]->{'name'}, 0, 30);
      $transaction->[$haben]->{'invnumber'} =~ s/\ *$//;
      $transaction->[$haben]->{'name'} =~ s/\ *$//;
      

      if ($trans_lines >= 2) {

        $gegenkonto = "a".$transaction->[$haben]->{'accno'};
        $konto = "e".$transaction->[$soll]->{'accno'};
        if ($transaction->[$haben]->{'invnumber'} ne "") { 
          $belegfeld1= "\xBD".$transaction->[$haben]->{'invnumber'}."\x1C";}
        $datum = "d";
        $datum .= &datetofour($transaction->[$haben]->{'transdate'},0);
        $waehrung = "\xB3"."EUR"."\x1C";
        if ($transaction->[$haben]->{'name'} ne "") { 
        $buchungstext = "\x1E".$transaction->[$haben]->{'name'}."\x1C";}
        if ($transaction->[$haben]->{'duedate'} ne "") { 
        $belegfeld2 = "\xBE".&datetofour($transaction->[$haben]->{'duedate'},1)."\x1C";}
      }


      if (($remaining_bytes- length("+".&formatumsatz($umsatz, 0))) <=6) {
        $fuellzeichen = ($blockcount * 256 - length($buchungssatz.$header));
        $buchungssatz .= "\x00" x $fuellzeichen;
        $blockcount++;
        $total_bytes = ($blockcount) *256;
      }
      $vorzeichen = ($umsatz > 0) ? "+" : "-";
      $buchungssatz .=$vorzeichen.&formatumsatz($umsatz, 0);
      $remaining_bytes = $total_bytes - length($buchungssatz.$header);
      
      if (($taxkey || $datevautomatik) && (!$datevautomatik || ($datevautomatik && ($charttax ne $taxkey)))) {
        if (($remaining_bytes- length("\x6C"."11")) <=6) {
            $fuellzeichen = ($blockcount * 256 - length($buchungssatz.$header));
          $buchungssatz .= "\x00" x $fuellzeichen;
          $blockcount++;
          $total_bytes = ($blockcount) *256;
        }
        if (!$datevautomatik) {
          $buchungssatz .="\x6C".$taxkey;
        } else {
          $buchungssatz .="\x6C"."4";
        }
        $remaining_bytes = $total_bytes - length($buchungssatz.$header);
      }
      
      if (($remaining_bytes- length($gegenkonto)) <=6) {
        $fuellzeichen = ($blockcount * 256 - length($buchungssatz.$header));
        $buchungssatz .= "\x00" x $fuellzeichen;
        $blockcount++;
        $total_bytes = ($blockcount) *256;
      }
      $buchungssatz .= $gegenkonto;
      $remaining_bytes = $total_bytes - length($buchungssatz.$header);      
          
      if (($remaining_bytes- length($belegfeld1)) <=6) {
        $fuellzeichen = ($blockcount * 256 - length($buchungssatz.$header));
        $buchungssatz .= "\x00" x $fuellzeichen;
        $blockcount++;
        $total_bytes = ($blockcount) *256;
      }
      $buchungssatz .= $belegfeld1;
      $remaining_bytes = $total_bytes - length($buchungssatz.$header);       

      if (($remaining_bytes- length($belegfeld2)) <=6) {
        $fuellzeichen = ($blockcount * 256 - length($buchungssatz.$header));
        $buchungssatz .= "\x00" x $fuellzeichen;
        $blockcount++;
        $total_bytes = ($blockcount) *256;
      }
      $buchungssatz .= $belegfeld2;
      $remaining_bytes = $total_bytes - length($buchungssatz.$header);

      if (($remaining_bytes- length($datum)) <=6) {
        $fuellzeichen = ($blockcount * 256 - length($buchungssatz.$header));
        $buchungssatz .= "\x00" x $fuellzeichen;
        $blockcount++;
        $total_bytes = ($blockcount) *256;
      }
      $buchungssatz .= $datum;
      $remaining_bytes = $total_bytes - length($buchungssatz.$header); 

      if (($remaining_bytes- length($konto)) <=6) {
        $fuellzeichen = ($blockcount * 256 - length($buchungssatz.$header));
        $buchungssatz .= "\x00" x $fuellzeichen;
        $blockcount++;
        $total_bytes = ($blockcount) *256;
      }
      $buchungssatz .= $konto;
      $remaining_bytes = $total_bytes - length($buchungssatz.$header); 


      if (($remaining_bytes- length($buchungstext)) <=6) {
        $fuellzeichen = ($blockcount * 256 - length($buchungssatz.$header));
        $buchungssatz .= "\x00" x $fuellzeichen;
        $blockcount++;
        $total_bytes = ($blockcount) *256;
      }
      $buchungssatz .= $buchungstext;
      $remaining_bytes = $total_bytes - length($buchungssatz.$header);
      
      if (($remaining_bytes- (length($waehrung."\x79"))) <=6) {
        $fuellzeichen = ($blockcount * 256 - length($buchungssatz.$header));
        $buchungssatz .= "\x00" x $fuellzeichen;
        $blockcount++;
        $total_bytes = ($blockcount) *256;
      }
      $buchungssatz .= $waehrung."\x79";
      $remaining_bytes = $total_bytes - length($buchungssatz.$header);      
      
    }
    
    $mandantenendsumme = "x".&formatumsatz($umsatzsumme,14)."\x79"."\x7a";
    $fuellzeichen = 256 - (length($header.$buchungssatz.$mandantenendsumme) % 256);
    $dateiende = "\x00" x $fuellzeichen;    
    print (ED $header);
    print (ED $buchungssatz);
    print (ED $mandantenendsumme);
    print (ED $dateiende);
    close (ED);
    
    $ed_versionset[$fileno]= &make_ed_versionset($header, $filename, $blockcount, $fromto);
    $fileno++;
  }
  
  #Make EV Verwaltungsdatei
  $ev_header= &make_ev_header($form, $fileno);
  $ev_filename= $export_path.$evfile;
  open (EV, "> $ev_filename") or die "can't open outputfile: EV01\n";  
  print (EV $ev_header);
  
  foreach $file (@ed_versionset) {
    print (EV $ed_versionset[$file]);
  }
  close (EV); 
  ###
  $main::lxdebug->leave_sub();
}

sub kne_stammdatenexport {
  $main::lxdebug->enter_sub();

  my ($myconfig, $form) = @_;
  $form->{abrechnungsnr}="99";
  
  my $export_path="datev/";
  my $filename="ED00000";
  my $evfile="EV01";
  my @ed_versionsets;
  my $fileno=1;
  my $i=0;
  my $blockcount=1;
  my $remaining_bytes=256;
  my $total_bytes=256;
  my $buchungssatz = "";
  $filename++;
  my $ed_filename= $export_path.$filename;
  open (ED, "> $ed_filename") or die "can't open outputfile: $!\n";
  $header=&make_kne_data_header($myconfig, $form, "");
  $remaining_bytes -= length($header);
  
  
  # connect to database
  my $dbh = $form->dbconnect($myconfig);
  
  
  $query = qq|SELECT c.accno, c.description FROM chart c WHERE c.accno >=|.$dbh->quote($form->{accnofrom}).qq|
           AND c.accno <= |.$dbh->quote($form->{accnoto}).qq| ORDER BY c.accno|;
 
  $sth = $dbh->prepare($query);
  $sth->execute || $form->dberror($query);

  while (my $ref = $sth->fetchrow_hashref(NAME_lc)) {
      if (($remaining_bytes- length("t".$ref->{'accno'})) <=6) {
        $fuellzeichen = ($blockcount * 256 - length($buchungssatz.$header));
        $buchungssatz .= "\x00" x $fuellzeichen;
        $blockcount++;
        $total_bytes = ($blockcount) *256;
      }
      $buchungssatz .= "t".$ref->{'accno'};
      $remaining_bytes = $total_bytes - length($buchungssatz.$header);
      $ref->{'description'} =~ s/[^0-9A-Za-z\$\%\&\*\+\-\/]//g;
      $ref->{'description'} = substr($ref->{'description'}, 0, 40);
      $ref->{'description'} =~ s/\ *$//;

      if (($remaining_bytes- length("\x1E".$ref->{'description'}."\x1C\x79")) <=6) {
        $fuellzeichen = ($blockcount * 256 - length($buchungssatz.$header));
        $buchungssatz .= "\x00" x $fuellzeichen;
        $blockcount++;
        $total_bytes = ($blockcount) *256;
      }
      $buchungssatz .= "\x1E".$ref->{'description'}."\x1C\x79";
      $remaining_bytes = $total_bytes - length($buchungssatz.$header);
  }
  
  $sth->finish;
  print (ED $header);
  print (ED $buchungssatz);
  $fuellzeichen = 256 - (length($header.$buchungssatz."z") % 256);
  $dateiende = "\x00" x $fuellzeichen;
  print (ED "z");
  print (ED $dateiende);
  close (ED);
  
  #Make EV Verwaltungsdatei
  $ed_versionset[0]= &make_ed_versionset($header, $filename, $blockcount, $fromto);

  $ev_header= &make_ev_header($form, $fileno);
  $ev_filename= $export_path.$evfile;
  open (EV, "> $ev_filename") or die "can't open outputfile: EV01\n";  
  print (EV $ev_header);
  
  foreach $file (@ed_versionset) {
    print (EV $ed_versionset[$file]);
  }
  close (EV);
  
  $dbh->disconnect; 
  ###

  $main::lxdebug->leave_sub();
}

1;