#=====================================================================
# LX-Office ERP
# Copyright (C) 2004
# Based on SQL-Ledger Version 2.1.9
# Web http://www.lx-office.org
#
#=====================================================================
# SQL-Ledger Accounting
# Copyright (c) 1998-2002
#
#  Author: Dieter Simader
#   Email: dsimader@sql-ledger.org
#     Web: http://www.sql-ledger.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.
#======================================================================
#
# Inventory invoicing module
#
#======================================================================

use SL::FU;
use SL::IS;
use SL::PE;
use Data::Dumper;
use List::Util qw(max sum);

require "bin/mozilla/io.pl";
require "bin/mozilla/invoice_io.pl";
require "bin/mozilla/arap.pl";
require "bin/mozilla/drafts.pl";

1;

# end of main

sub add {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  return $lxdebug->leave_sub() if (load_draft_maybe());

  if ($form->{type} eq "credit_note") {
    $form->{title} = $locale->text('Add Credit Note');

    if ($form->{storno}) {
      $form->{title} = $locale->text('Add Storno Credit Note');
    }
  } else {
    $form->{title} = $locale->text('Add Sales Invoice');

  }


  $form->{callback} = "$form->{script}?action=add&type=$form->{type}" unless $form->{callback};

  $form{jsscript} = "date";

  &invoice_links;
  &prepare_invoice;
  &display_form;

  $lxdebug->leave_sub();
}

sub edit {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  # show history button
  $form->{javascript} = qq|<script type="text/javascript" src="js/show_history.js"></script>|;
  #/show hhistory button

  $edit = 1;
  if ($form->{print_and_post}) {
    $form->{action}   = "print";
    $form->{resubmit} = 1;
    $language_id = $form->{language_id};
    $printer_id = $form->{printer_id};
  }
  &invoice_links;
  &prepare_invoice;
  if ($form->{print_and_post}) {
    $form->{language_id} = $language_id;
    $form->{printer_id} = $printer_id;
  }

  &display_form;

  $lxdebug->leave_sub();
}

sub invoice_links {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  $form->{vc} = 'customer';

  # create links
  $form->{webdav}   = $webdav;
  $form->{lizenzen} = $lizenzen;

  $form->create_links("AR", \%myconfig, "customer");

  if ($form->{all_customer}) {
    unless ($form->{customer_id}) {
      $form->{customer_id} = $form->{all_customer}->[0]->{id};
      $form->{salesman_id} = $form->{all_customer}->[0]->{salesman_id};
    }
  }

  if ($form->{payment_id}) {
    $payment_id = $form->{payment_id};
  }
  if ($form->{language_id}) {
    $language_id = $form->{language_id};
  }
  if ($form->{taxzone_id}) {
    $taxzone_id = $form->{taxzone_id};
  }
  if ($form->{id}) {
    $id = $form->{id};
  }
  if ($form->{shipto_id}) {
    $shipto_id = $form->{shipto_id};
  }

  $cp_id = $form->{cp_id};
  IS->get_customer(\%myconfig, \%$form);

  #quote all_customer Bug 133
  foreach $ref (@{ $form->{all_customer} }) {
    $ref->{name} = $form->quote($ref->{name});
  }
  if ($id) {
    $form->{id} = $id;
  }
  IS->retrieve_invoice(\%myconfig, \%$form);
  $form->{cp_id} = $cp_id;

  if ($payment_id) {
    $form->{payment_id} = $payment_id;
  }
  if ($language_id) {
    $form->{language_id} = $language_id;
  }
  if ($taxzone_id) {
    $form->{taxzone_id} = $taxzone_id;
  }
  if ($shipto_id) {
    $form->{shipto_id} = $shipto_id;
  }

  $form->{oldcustomer} = "$form->{customer}--$form->{customer_id}";

  # departments
  if ($form->{all_departments}) {
    $form->{selectdepartment} = "<option>\n";
    $form->{department}       = "$form->{department}--$form->{department_id}";

    map {
      $form->{selectdepartment} .=
        "<option>$_->{description}--$_->{id}</option>\n"
    } (@{ $form->{all_departments} });
  }

  $form->{employee} = "$form->{employee}--$form->{employee_id}";

  # forex
  $form->{forex} = $form->{exchangerate};
  $exchangerate = ($form->{exchangerate}) ? $form->{exchangerate} : 1;

  foreach $key (keys %{ $form->{AR_links} }) {
    foreach $ref (@{ $form->{AR_links}{$key} }) {
      $form->{"select$key"} .=
"<option>$ref->{accno}--$ref->{description}</option>\n";
    }

    if ($key eq "AR_paid") {
      for $i (1 .. scalar @{ $form->{acc_trans}{$key} }) {
        $form->{"AR_paid_$i"} =
          "$form->{acc_trans}{$key}->[$i-1]->{accno}--$form->{acc_trans}{$key}->[$i-1]->{description}";

        # reverse paid
        $form->{"paid_$i"} = $form->{acc_trans}{$key}->[$i - 1]->{amount} * -1;
        $form->{"datepaid_$i"} =
          $form->{acc_trans}{$key}->[$i - 1]->{transdate};
        $form->{"forex_$i"} = $form->{"exchangerate_$i"} =
          $form->{acc_trans}{$key}->[$i - 1]->{exchangerate};
        $form->{"source_$i"} = $form->{acc_trans}{$key}->[$i - 1]->{source};
        $form->{"memo_$i"}   = $form->{acc_trans}{$key}->[$i - 1]->{memo};

        $form->{paidaccounts} = $i;
      }
    } else {
      $form->{$key} =
        "$form->{acc_trans}{$key}->[0]->{accno}--$form->{acc_trans}{$key}->[0]->{description}";
    }

  }

  $form->{paidaccounts} = 1 unless (exists $form->{paidaccounts});

  $form->{AR} = $form->{AR_1} unless $form->{id};

  $form->{locked} =
    ($form->datetonum($form->{invdate}, \%myconfig) <=
     $form->datetonum($form->{closedto}, \%myconfig));

  $lxdebug->leave_sub();
}

sub prepare_invoice {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  if ($form->{type} eq "credit_note") {
    $form->{type}     = "credit_note";
    $form->{formname} = "credit_note";
  } else {
    $form->{type}     = "invoice";
    $form->{formname} = "invoice";
  }

  if ($form->{id}) {


    #     # get pricegroups for parts
    #     IS->get_pricegroups_for_parts(\%myconfig, \%$form);

    my $i = 0;

    foreach $ref (@{ $form->{invoice_details} }) {
      $i++;

      map { $form->{"${_}_$i"} = $ref->{$_} } keys %{$ref};
      $form->{"discount_$i"} =
        $form->format_amount(\%myconfig, $form->{"discount_$i"} * 100);
      ($dec) = ($form->{"sellprice_$i"} =~ /\.(\d+)/);
      $dec           = length $dec;
      $decimalplaces = ($dec > 2) ? $dec : 2;

      $form->{"sellprice_$i"} =
        $form->format_amount(\%myconfig, $form->{"sellprice_$i"},
                             $decimalplaces);

      (my $dec_qty) = ($form->{"qty_$i"} =~ /\.(\d+)/);
      $dec_qty = length $dec_qty;

      $form->{"qty_$i"} =
        $form->format_amount(\%myconfig, $form->{"qty_$i"}, $dec_qty);

      $form->{rowcount} = $i;

    }
  }
  $lxdebug->leave_sub();
}

sub form_header {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  $form->{employee_id} = $form->{old_employee_id} if $form->{old_employee_id};
  $form->{salesman_id} = $form->{old_salesman_id} if $form->{old_salesman_id};

  if ($edit) {
    if ($form->{type} eq "credit_note") {
      $form->{title} = $locale->text('Edit Credit Note');
      $form->{title} = $locale->text('Edit Storno Credit Note') if $form->{storno};
    } else {
      $form->{title} = $locale->text('Edit Sales Invoice');
      $form->{title} = $locale->text('Edit Storno Invoice')     if $form->{storno};
    }
  }
  $form->{defaultcurrency} = $form->get_default_currency(\%myconfig);
  $form->{radier}          = ($form->current_date(\%myconfig) eq $form->{gldate}) ? 1 : 0;

  $payment = qq|<option value=""></option>|;
  foreach $item (@{ $form->{payment_terms} }) {
    if ($form->{payment_id} eq $item->{id}) {
      $payment .= qq|<option value="$item->{id}" selected>$item->{description}</option>|;
    } else {
      $payment .= qq|<option value="$item->{id}">$item->{description}</option>|;
    }
  }

  my $set_duedate_url = "$form->{script}?action=set_duedate";

  my $pjx = new CGI::Ajax( 'set_duedate' => $set_duedate_url );
  push(@ { $form->{AJAX} }, $pjx);

  my @old_project_ids = ($form->{"globalproject_id"});
  map { push @old_project_ids, $form->{"project_id_$_"} if $form->{"project_id_$_"}; } 1..$form->{"rowcount"};

  $form->get_lists("contacts"      => "ALL_CONTACTS",
                   "shipto"        => "ALL_SHIPTO",
                   "projects"      => { "key"    => "ALL_PROJECTS",
                                        "all"    => 0,
                                        "old_id" => \@old_project_ids },
                   "employees"     => "ALL_SALESMEN",
                   "taxzones"      => "ALL_TAXZONES",
                   "currencies"    => "ALL_CURRENCIES",
                   "customers"     => "ALL_CUSTOMERS",
                   "price_factors" => "ALL_PRICE_FACTORS");

  my %labels;
  my @values = (undef);
  foreach my $item (@{ $form->{"ALL_CONTACTS"} }) {
    push(@values, $item->{"cp_id"});
    $labels{$item->{"cp_id"}} = join(',', $item->{"cp_name"}, $item->{"cp_givenname"}) .  ($item->{"cp_abteilung"} ? " ($item->{cp_abteilung})" : "");
  }
  my $contact;
  if (scalar @values > 1) {
    $contact = qq|
    <tr>
      <th align="right">| . $locale->text('Contact Person') . qq|</th>
      <td>| .  NTI($cgi->popup_menu('-name' => 'cp_id', '-values' => \@values, '-style' => 'width: 250px',
                                    '-labels' => \%labels, '-default' => $form->{"cp_id"})) . qq|
      </td>
    </tr>|;
  }

  %labels = ();
  @values = ();
  foreach my $item (@{ $form->{"ALL_SALESMEN"} }) {
    push(@values, $item->{"id"});
    $labels{$item->{id}} = $item->{name} ne "" ? $item->{name} : $item->{login};
  }

  my $employees = qq|
    <tr>
      <th align="right">| . $locale->text('Employee') . qq|</th>
      <td>| . NTI($cgi->popup_menu('-name' => 'employee_id', '-default' => $form->{"employee_id"},
                                   '-values' => \@values, '-labels' => \%labels)) . qq|
      </td>
    </tr>|;


  %labels = ();
  @values = ();
  foreach my $item (@{ $form->{"ALL_CUSTOMERS"} }) {
    push(@values, $item->{name}.qq|--|.$item->{"id"});
    $labels{$item->{name}.qq|--|.$item->{"id"}} = $item->{"name"};
  }

  $form->{selectcustomer} = ($myconfig{vclimit} > scalar(@values));

  my $customers = qq|
      <th align="right">| . $locale->text('Customer') . qq|</th>
      <td>| .
        (($myconfig{vclimit} <=  scalar(@values))
              ? qq|<input type="text" value="| . H($form->{customer}) . qq|" name="customer">|
              : (NTI($cgi->popup_menu('-name' => 'customer', '-default' => $form->{oldcustomer},
                             '-onChange' => 'document.getElementById(\'update_button\').click();',
                             '-values' => \@values, '-labels' => \%labels, '-style' => 'width: 250px')))) . qq|
        <input type="button" value="| . $locale->text('Details (one letter abbreviation)') . qq|" onclick="show_vc_details('customer')">
      </td>|;

  %labels = ();
  @values = ("");
  foreach my $item (@{ $form->{"ALL_SHIPTO"} }) {
    push(@values, $item->{"shipto_id"});
    $labels{$item->{"shipto_id"}} = join "; ", grep { $_ } map { $item->{"shipto${_}" } } qw(name department_1 street city);
  }

  my $shipto;
  if (scalar @values > 1) {
    $shipto = qq|
    <tr>
      <th align="right">| . $locale->text('Shipping Address') . qq|</th>
      <td>| . NTI($cgi->popup_menu('-name' => 'shipto_id', '-values' => \@values, '-style' => 'width: 250px',
                                   '-labels' => \%labels, '-default' => $form->{"shipto_id"})). qq|
      </td>|;
  }

  %labels = ();
  @values = ();
  foreach my $item (@{ $form->{"ALL_CURRENCIES"} }) {
    push(@values, $item);
    $labels{$item} = $item;
  }

  $form->{currency}        = $form->{defaultcurrency} unless $form->{currency};
  my $currencies;
  if (scalar @values) {
    $currencies = qq|
    <tr>
      <th align="right">| . $locale->text('Currency') . qq|</th>
      <td>| . NTI($cgi->popup_menu('-name' => 'currency', '-default' => $form->{"currency"},
                                   '-values' => \@values, '-labels' => \%labels)) . qq|
      </td>
    </tr>|;
  }

  %labels = ();
  @values = ("");
  foreach my $item (@{ $form->{"ALL_PROJECTS"} }) {
    push(@values, $item->{"id"});
    $labels{$item->{"id"}} = $item->{"projectnumber"};
  }
  my $globalprojectnumber = NTI($cgi->popup_menu('-name' => 'globalproject_id', '-values' => \@values,
                                                 '-labels' => \%labels,
                                                 '-default' => $form->{"globalproject_id"}));

  %labels = ();
  @values = ();
  foreach my $item (@{ $form->{ALL_SALESMEN} }) {
    push(@values, $item->{id});
    $labels{$item->{id}} = $item->{name} ne "" ? $item->{name} : $item->{login};
  }

  $salesman =
    qq|<tr> <th align="right">| . $locale->text('Salesman') . qq|</th>
         <td>| . NTI($cgi->popup_menu('-name' => 'salesman_id', '-values' => \@values, '-labels' => \%labels,
                                      '-default' => $form->{salesman_id} ? $form->{salesman_id} : $form->{employee_id})) . qq|
         </td>
       </tr>|;

  %labels = ();
  @values = ();
  foreach my $item (@{ $form->{"ALL_TAXZONES"} }) {
    push(@values, $item->{"id"});
    $labels{$item->{"id"}} = $item->{"description"};
  }

  if (!$form->{"id"}) {
    $taxzone = qq|
    <tr>
      <th align="right">| . $locale->text('Steuersatz') . qq|</th>
      <td>| . NTI($cgi->popup_menu('-name' => 'taxzone_id', '-default' => $form->{"taxzone_id"},
                                   '-values' => \@values, '-labels' => \%labels, '-style' => 'width: 250px',)) . qq|
      </td>
    </tr>|;

  } else {
    $taxzone = qq|
    <tr>
      <th align="right">| . $locale->text('Steuersatz') . qq|</th>
      <td>
        <input type="hidden" name="taxzone_id" value="| . H($form->{"taxzone_id"}) . qq|">
        | . H($labels{$form->{"taxzone_id"}}) . qq|
      </td>
    </tr>|;
  }

  # set option selected
  foreach $item (qw(AR customer currency department employee)) {
    $form->{"select$item"} =~ s/ selected//;
    $form->{"select$item"} =~ s/option>\Q$form->{$item}\E/option selected>$form->{$item}/;
  }

  $creditwarning = (($form->{creditlimit} != 0) && ($form->{creditremaining} < 0) && !$form->{update}) ? 1 : 0;

  $form->{exchangerate}    = $form->format_amount(\%myconfig, $form->{exchangerate});
  $form->{creditlimit}     = $form->format_amount(\%myconfig, $form->{creditlimit}, 0, "0");
  $form->{creditremaining} = $form->format_amount(\%myconfig, $form->{creditremaining}, 0, "0");

  $exchangerate = "";
  if ($form->{currency} ne $form->{defaultcurrency}) {
    if ($form->{forex}) {
      $exchangerate .= qq|<th align="right">| . $locale->text('Exchangerate') . qq|</th>
                          <td>$form->{exchangerate}<input type="hidden" name="exchangerate" value="$form->{exchangerate}"></td>|;
    } else {
      $exchangerate .= qq|<th align="right">| . $locale->text('Exchangerate') . qq|</th>
                          <td><input name="exchangerate" size="10" value="$form->{exchangerate}"></td>|;
    }
  }
  $exchangerate .= qq|\n<input type="hidden" name="forex" value="$form->{forex}">\n|;

  $department = qq|
              <tr>
	        <th align="right" nowrap>| . $locale->text('Department') . qq|</th>
		<td colspan="3"><select name="department" style="width: 250px">$form->{selectdepartment}</select>
                  <input type="hidden" name="selectdepartment" value="$form->{selectdepartment}">
		</td>
	      </tr>
| if $form->{selectdepartment};

  $n = ($form->{creditremaining} =~ /-/) ? "0" : "1";

  if ($form->{business}) {
    $business = qq|
	      <tr>
          <th align="right">| . $locale->text('Customer type') . qq|</th>
          <td>$form->{business}; | . $locale->text('Trade Discount') . qq| |
      . $form->format_amount(\%myconfig, $form->{tradediscount} * 100)
      . qq| %</td>
        </tr>
|;
  }

  if ($form->{max_dunning_level}) {
    $dunning = qq|
      <tr>
        <th align="right">| . $locale->text('Max. Dunning Level') . qq|:</th>
        <td>
          <b>$form->{max_dunning_level}</b>;
          | . $locale->text('Dunning Amount') . qq|: <b>|
        . $form->format_amount(\%myconfig, $form->{dunning_amount},2)
        . qq|</b>
        </td>
      </tr>
|;
  }

  $form->{fokus} = "invoice.customer";

  # use JavaScript Calendar or not
  $form->{jsscript} = 1;
  $jsscript = "";
  if ($form->{type} eq "credit_note") {
    $button1 = qq|
      <td nowrap><input name="invdate" id="invdate" size="11" title="$myconfig{dateformat}" value="$form->{invdate}" onBlur=\"check_right_date_format(this)\">
       <input type="button" name="invdate_button" id="trigger1" value="|
      . $locale->text('button') . qq|"></td>|;

    #write Trigger
    $jsscript =
      Form->write_trigger(\%myconfig,     "1",
                          "invdate",      "BL",
                          "trigger1");
  } else {
    $button1 = qq|
      <td nowrap><input name="invdate" id="invdate" size="11" title="$myconfig{dateformat}" value="$form->{invdate}" onBlur=\"check_right_date_format(this)\">
       <input type="button" name="invdate_button" id="trigger1" value="|
      . $locale->text('button') . qq|"></td>
      |;
    $button2 = qq|
      <td width="13"><input name="duedate" id="duedate" size="11" title="$myconfig{dateformat}" value="$form->{duedate}" onBlur=\"check_right_date_format(this)\">
       <input type="button" name="duedate_button" id="trigger2" value="|
      . $locale->text('button') . qq|"></td>
    |;
    $button3 = qq|
      <td width="13"><input name="deliverydate" id="deliverydate" size="11" title="$myconfig{dateformat}" value="$form->{deliverydate}" onBlur=\"check_right_date_format(this)\">
       <input type="button" name="deliverydate_button" id="trigger3" value="|
      . $locale->text('button') . qq|"></td>
    |;

    #write Trigger
    $jsscript =
      Form->write_trigger(\%myconfig,     "3",
                          "invdate",      "BL", "trigger1", 
                          "duedate",      "BL", "trigger2",
                          "deliverydate", "BL", "trigger3");
  }

  $credittext = $locale->text('Credit Limit exceeded!!!');

  my $follow_up_vc         =  $form->{customer};
  $follow_up_vc            =~ s/--\d*\s*$//;
  my $follow_up_trans_info =  "$form->{invnumber} ($follow_up_vc)";

  $onload = ($form->{resubmit} && ($form->{format} eq "html")) ? qq|window.open('about:blank','Beleg'); document.invoice.target = 'Beleg';document.invoice.submit()|
          : ($form->{resubmit})                                ? qq|document.invoice.submit()|
          : ($creditwarning)                                   ? qq|alert('$credittext')|
          :                                                      "focus()";
  $onload .= qq|;setupDateFormat('|. $myconfig{dateformat} .qq|', '|. $locale->text("Falsches Datumsformat!") .qq|')|;
  $onload .= qq|;setupPoints('|. $myconfig{numberformat} .qq|', '|. $locale->text("wrongformat") .qq|')|;

  $form->{javascript} .= qq|<script type="text/javascript" src="js/show_form_details.js"></script>|;
  $form->{javascript} .= qq|<script type="text/javascript" src="js/show_vc_details.js"></script>|;

  $jsscript .=
    $form->write_trigger(\%myconfig, 2,
                         "orddate", "BL", "trigger_orddate",
                         "quodate", "BL", "trigger_quodate");
  # show history button js
  $form->{javascript} .= qq|<script type="text/javascript" src="js/show_history.js"></script>|;
  #/show history button js
  $form->header;

  print qq|
<body onLoad="$onload">
<script type="text/javascript" src="js/common.js"></script>
<script type="text/javascript" src="js/delivery_customer_selection.js"></script>
<script type="text/javascript" src="js/vendor_selection.js"></script>
<script type="text/javascript" src="js/calculate_qty.js"></script>
<script type="text/javascript" src="js/follow_up.js"></script>

<form method="post" name="invoice" action="$form->{script}">
| ;

  $form->hide_form(qw(id action type media format queued printed emailed title vc discount
                      creditlimit creditremaining tradediscount business closedto locked shipped storno storno_id
                      max_dunning_level dunning_amount
                      shiptoname shiptostreet shiptozipcode shiptocity shiptocountry  shiptocontact shiptophone shiptofax 
                      shiptoemail shiptodepartment_1 shiptodepartment_2 message email subject cc bcc taxaccounts cursor_fokus
                      convert_from_do_ids convert_from_oe_ids),
                      map { $_.'_rate', $_.'_description', $_.'_taxnumber' } split / /, $form->{taxaccounts} );
   
  print qq|<p>$form->{saved_message}</p>| if $form->{saved_message};

  print qq|

<input type="hidden" name="follow_up_trans_id_1" value="| . H($form->{id}) . qq|">
<input type="hidden" name="follow_up_trans_type_1" value="sales_invoice">
<input type="hidden" name="follow_up_trans_info_1" value="| . H($follow_up_trans_info) . qq|">
<input type="hidden" name="follow_up_rowcount" value="1">

<input type="hidden" name="lizenzen" value="$lizenzen">

<div class="listtop" width="100%">$form->{title}</div>

<table width="100%">
  <tr>
    <td valign="top">
      <table>
        <tr>
          $customers
          <input type="hidden" name="customer_klass" value="| . H($form->{customer_klass}) . qq|">
          <input type="hidden" name="customer_id" value="| . H($form->{customer_id}) . qq|">
          <input type="hidden" name="oldcustomer" value="| . H($form->{oldcustomer}) . qq|">
          <input type="hidden" name="selectcustomer" value="| . H($form->{selectcustomer}) . qq|">
        </tr>
        $contact
        $shipto
        <tr>
          <td align="right">| . $locale->text('Credit Limit') . qq|</td>
          <td>$form->{creditlimit}; | . $locale->text('Remaining') . qq| <span class="plus$n">$form->{creditremaining}</span></td>
        </tr>
        $dunning
        $business
	      <tr>
		<th align="right" nowrap>| . $locale->text('Record in') . qq|</th>
		<td colspan="3"><select name="AR" style="width:250px;">$form->{selectAR}</select></td>
		<input type="hidden" name="selectAR" value="$form->{selectAR}">
	      </tr>
              $taxzone
	      $department
	      <tr>
    $currencies
		<input type="hidden" name="fxgain_accno" value="$form->{fxgain_accno}">
		<input type="hidden" name="fxloss_accno" value="$form->{fxloss_accno}">
		$exchangerate
	      </tr>
	      <tr>
		<th align="right" nowrap>| . $locale->text('Shipping Point') . qq|</th>
		<td colspan="3"> | .
		$cgi->textfield("-name" => "shippingpoint", "-size" => 35, "-value" => $form->{shippingpoint}) .
      	  qq|	</td>
	      </tr>
	      <tr>
		<th align="right" nowrap>| . $locale->text('Ship via') . qq|</th>
		<td colspan="3"> | .
		$cgi->textfield("-name" => "shipvia", "-size" => 35, "-value" => $form->{shipvia}) .
	  qq|	</td>
	      </tr>
              <tr>
                <th align="right">| . $locale->text('Transaction description') . qq|</th>
                <td colspan="3">| . $cgi->textfield("-name" => "transaction_description", "-size" => 35, "-value" => $form->{transaction_description}) . qq|</td>
              </tr>|;
#               <tr>
#                 <td colspan=4>
#                   <table>
#                     <tr>
#                       <td colspan=2>
#                         <button type="button" onclick="delivery_customer_selection_window('delivery_customer_string','delivery_customer_id')">| . $locale->text('Choose Customer') . qq|</button>
#                       </td>
#                       <td colspan=2><input type=hidden name=delivery_customer_id value="$form->{delivery_customer_id}">
#                       <input size=45 id=delivery_customer_string name=delivery_customer_string value="$form->{delivery_customer_string}"></td>
#                     </tr>
#                     <tr>
#                       <td colspan=2>
#                         <button type="button" onclick="vendor_selection_window('delivery_vendor_string','delivery_vendor_id')">| . $locale->text('Choose Vendor') . qq|</button>
#                       </td>
#                       <td colspan=2><input type=hidden name=delivery_vendor_id value="$form->{delivery_vendor_id}">
#                       <input size=45 id=delivery_vendor_string name=delivery_vendor_string value="$form->{delivery_vendor_string}"></td>
#                     </tr>
#                   </table>
#                 </td>
#               </tr>
print qq|	    </table>
	  </td>
	  <td align="right" valign="top">
	    <table>
	      $employees
        $salesman
|;

#ergänzung in der maske um das feld Lieferscheinnummer (Delivery Order Number), meiner meinung nach sinnvoll ueber dem feld lieferscheindatum 12.02.2009 jb
if ($form->{type} eq "credit_note") {
print qq|     <tr>
		<th align="right" nowrap>| . $locale->text('Credit Note Number') . qq|</th>
		<td> |.
	        $cgi->textfield("-name" => "invnumber", "-size" => 11, "-value" => $form->{invnumber}) .	
      qq|	</td>
	      </tr>
	      <tr>
		<th align="right">| . $locale->text('Credit Note Date') . qq|</th>
                $button1
	      </tr>|;
} else {
print qq|     <tr>
		<th align="right" nowrap>| . $locale->text('Invoice Number') . qq|</th>
		<td> |.
	        $cgi->textfield("-name" => "invnumber", "-size" => 11, "-value" => $form->{invnumber}) .	
      qq|	</td>
	      </tr>
	      <tr>
		<th align="right">| . $locale->text('Invoice Date') . qq|</th>
                $button1
	      </tr>
	      <tr>
		<th align="right">| . $locale->text('Due Date') . qq|</th>
                $button2
	      </tr>
	      <tr>
		<th align="right" nowrap>| . $locale->text('Delivery Order Number') . qq|</th>
		<td> |.
	        $cgi->textfield("-name" => "donumber", "-size" => 11, "-value" => $form->{donumber}) .	
      qq|	</td>
	      </tr>
	      <tr>
		<th align="right">| . $locale->text('Delivery Date') . qq|</th>
                $button3
	      </tr>|;
}
print qq|     <tr>
		<th align="right" nowrap>| . $locale->text('Order Number') . qq|</th>
		<td> |.
	        $cgi->textfield("-name" => "ordnumber", "-size" => 11, "-value" => $form->{ordnumber}) .	
      qq|	</td>
	      </tr>
        <tr>
          <th align="right" nowrap>| . $locale->text('Order Date') . qq|</th>
          <td><input name="orddate" id="orddate" size="11" title="$myconfig{dateformat}" value="| . Q($form->{orddate}) . qq|" onBlur=\"check_right_date_format(this)\">
           <input type="button" name="b_orddate" id="trigger_orddate" value="?"></td>
        </tr>
	      <tr>
		<th align="right" nowrap>| . $locale->text('Quotation Number') . qq|</th>
		<td> |.
	        $cgi->textfield("-name" => "quonumber", "-size" => 11, "-value" => $form->{quonumber}) .	
      qq|	</td>
	      </tr>
        <tr>
          <th align="right" nowrap>| . $locale->text('Quotation Date') . qq|</th>
          <td><input name="quodate" id="quodate" size="11" title="$myconfig{dateformat}" value="| . Q($form->{quodate}) . qq|" onBlur=\"check_right_date_format(this)\">
           <input type="button" name="b_quodate" id="trigger_quodate" value="?"></td>
        </tr>
	      <tr>
		<th align="right" nowrap>| . $locale->text('Customer Order Number') . qq|</th>
		<td> |.
	        $cgi->textfield("-name" => "cusordnumber", "-size" => 11, "-value" => $form->{cusordnumber}) .	
      qq|	</td>
	      </tr>
	      <tr>
          <th align="right" nowrap>| . $locale->text('Project Number') . qq|</th>
          <td>$globalprojectnumber</td>
	      </tr>
	    </table>
          </td>
	</tr>
      </table>
    </td>
  </tr>
  <tr>
    <td>
    </td>
  </tr> 
  $jsscript
|;
  print qq|<input type="hidden" name="webdav" value="$webdav">|;

  $lxdebug->leave_sub();
}

sub form_footer {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  $form->{invtotal} = $form->{invsubtotal};

  if (($rows = $form->numtextrows($form->{notes}, 26, 8)) < 2) {
    $rows = 2;
  }
  if (($introws = $form->numtextrows($form->{intnotes}, 35, 8)) < 2) {
    $introws = 2;
  }
  $rows = ($rows > $introws) ? $rows : $introws;
  $notes =
    qq|<textarea name="notes" rows="$rows" cols="26" wrap="soft">$form->{notes}</textarea>|;
  $intnotes =
    qq|<textarea name="intnotes" rows="$rows" cols="35" wrap="soft">$form->{intnotes}</textarea>|;

  $form->{taxincluded} = ($form->{taxincluded} ? "checked" : "");

  $taxincluded = "";
  if ($form->{taxaccounts}) {
    $taxincluded = qq|
	        <input name="taxincluded" class="checkbox" type="checkbox" $form->{taxincluded}> <b>|
      . $locale->text('Tax Included') . qq|</b><br><br>|;
  }

  if (!$form->{taxincluded}) {

    foreach $item (split / /, $form->{taxaccounts}) {
      if ($form->{"${item}_base"}) {
        $form->{"${item}_total"} =
          $form->round_amount(
                             $form->{"${item}_base"} * $form->{"${item}_rate"},
                             2);
        $form->{invtotal} += $form->{"${item}_total"};
        $form->{"${item}_total"} =
          $form->format_amount(\%myconfig, $form->{"${item}_total"}, 2);

        $tax .= qq|
	      <tr>
                <th align="right">$form->{"${item}_description"}&nbsp;|
                                    . $form->{"${item}_rate"} * 100 .qq|%</th>
		<td align="right">$form->{"${item}_total"}</td>
	      </tr>
|;
      }
    }

    $form->{invsubtotal} =
      $form->format_amount(\%myconfig, $form->{invsubtotal}, 2, 0);

    $subtotal = qq|
	      <tr>
		<th align="right">| . $locale->text('Subtotal') . qq|</th>
		<td align="right">$form->{invsubtotal}</td>
	      </tr>
|;

  }

  if ($form->{taxincluded}) {
    foreach $item (split / /, $form->{taxaccounts}) {
      if ($form->{"${item}_base"}) {
        $form->{"${item}_total"} =
          $form->round_amount(
                           ($form->{"${item}_base"} * $form->{"${item}_rate"} /
                              (1 + $form->{"${item}_rate"})
                           ),
                           2);
        $form->{"${item}_netto"} =
          $form->round_amount(
                          ($form->{"${item}_base"} - $form->{"${item}_total"}),
                          2);
        $form->{"${item}_total"} =
          $form->format_amount(\%myconfig, $form->{"${item}_total"}, 2);
        $form->{"${item}_netto"} =
          $form->format_amount(\%myconfig, $form->{"${item}_netto"}, 2);

        $tax .= qq|
	      <tr>
		<th align="right">Enthaltene $form->{"${item}_description"}&nbsp;|
		                    . $form->{"${item}_rate"} * 100 .qq|%</th>
		<td align="right">$form->{"${item}_total"}</td>
	      </tr>
	      <tr>
	        <th align="right">Nettobetrag</th>
		<td align="right">$form->{"${item}_netto"}</td>
	      </tr>
|;
      }
    }

  }

  $form->{oldinvtotal} = $form->{invtotal};
  $form->{invtotal}    =
    $form->format_amount(\%myconfig, $form->{invtotal}, 2, 0);

  my $follow_ups_block;
  if ($form->{id}) {
    my $follow_ups = FU->follow_ups('trans_id' => $form->{id});

    if (@{ $follow_ups} ) {
      my $num_due       = sum map { $_->{due} * 1 } @{ $follow_ups };
      $follow_ups_block = qq|
      <tr>
        <td colspan="2">| . $locale->text("There are #1 unfinished follow-ups of which #2 are due.", scalar @{ $follow_ups }, $num_due) . qq|</td>
      </tr>
|;
    }
  }

  print qq|
  <tr>
    <td>
      <table width="100%">
	<tr valign="bottom">
	  <td>
	    <table>
	      <tr>
		<th align="left">| . $locale->text('Notes') . qq|</th>
		<th align="left">| . $locale->text('Internal Notes') . qq|</th>
                <th align="right">| . $locale->text('Payment Terms') . qq|</th>
	      </tr>
	      <tr valign="top">
		<td>$notes</td>
		<td>$intnotes</td>
                <td><select name="payment_id" onChange="if (this.value) set_duedate(['payment_id__' + this.value, 'invdate__' + invdate.value],['duedate'])">$payment
                </select></td>
	      </tr>
        $follow_ups_block
	    </table>
	  </td>
          <td>
            <table>
            <tr>
              <th  align=left>| . $locale->text('Ertrag') . qq|</th>
              <td>| .  $form->format_amount(\%myconfig, $form->{marge_total}, 2, 0) . qq|</td>
            </tr>
            <tr>
              <th  align=left>| . $locale->text('Ertrag prozentual') . qq|</th>
              <td>| .  $form->format_amount(\%myconfig, $form->{marge_percent}, 2, 0) . qq| %</td>
            </tr>
            <input type=hidden name="marge_total" value="$form->{"marge_total"}">
            <input type=hidden name="marge_percent" value="$form->{"marge_percent"}">
            </table>
          </td>
	  <td align="right">
	    $taxincluded
	    <table>
	      $subtotal
	      $tax
	      <tr>
		<th align="right">| . $locale->text('Total') . qq|</th>
		<td align="right">$form->{invtotal}</td>
	      </tr>
	    </table>
	  </td>
	</tr>
      </table>
    </td>
  </tr>
|;
  if ($webdav) {
    $webdav_list = qq|
  <tr>
    <td><hr size="3" noshade></td>
  </tr>
  <tr>
    <th class="listtop" align="left">Dokumente im Webdav-Repository</th>
  </tr>
    <table width="100%">
      <td align="left" width="30%"><b>Dateiname</b></td>
      <td align="left" width="70%"><b>Webdavlink</b></td>
|;
    foreach $file (@{ $form->{WEBDAV} }) {
      $webdav_list .= qq|
      <tr>
        <td align="left">$file->{name}</td>
        <td align="left"><a href="$file->{link}">$file->{type}</a></td>
      </tr>
|;
    }
    $webdav_list .= qq|
    </table>
  </tr>
|;

    print $webdav_list;
  }
if ($form->{type} eq "credit_note") {
  print qq|
  <tr>
    <td>
      <table width="100%">
	<tr class="listheading">
	  <th colspan="6" class="listheading">|
    . $locale->text('Payments') . qq|</th>
	</tr>
|;
} else {
  print qq|
  <tr>
    <td>
      <table width="100%">
	<tr class="listheading">
	  <th colspan="6" class="listheading">|
    . $locale->text('Incoming Payments') . qq|</th>
	</tr>
|;
}

  if ($form->{currency} eq $form->{defaultcurrency}) {
    @column_index = qw(datepaid source memo paid AR_paid);
  } else {
    @column_index = qw(datepaid source memo paid exchangerate AR_paid);
  }

  $column_data{datepaid}     = "<th>" . $locale->text('Date') . "</th>";
  $column_data{paid}         = "<th>" . $locale->text('Amount') . "</th>";
  $column_data{exchangerate} = "<th>" . $locale->text('Exch') . "</th>";
  $column_data{AR_paid}      = "<th>" . $locale->text('Account') . "</th>";
  $column_data{source}       = "<th>" . $locale->text('Source') . "</th>";
  $column_data{memo}         = "<th>" . $locale->text('Memo') . "</th>";

  print "
	<tr>
";
  map { print "$column_data{$_}\n" } @column_index;
  print "
        </tr>
";

  my @triggers  = ();
  my $totalpaid = 0;

  $form->{paidaccounts}++ if ($form->{"paid_$form->{paidaccounts}"});
  for $i (1 .. $form->{paidaccounts}) {

    print "
        <tr>\n";

    $form->{"selectAR_paid_$i"} = $form->{selectAR_paid};
    $form->{"selectAR_paid_$i"} =~
      s/option>\Q$form->{"AR_paid_$i"}\E/option selected>$form->{"AR_paid_$i"}/;

    # format amounts
    $totalpaid += $form->{"paid_$i"};
    if ($form->{"paid_$i"}) {
      $form->{"paid_$i"} =
        $form->format_amount(\%myconfig, $form->{"paid_$i"}, 2);
    }
    $form->{"exchangerate_$i"} =
      $form->format_amount(\%myconfig, $form->{"exchangerate_$i"});

    if ($form->{"exchangerate_$i"} == 0) {
      $form->{"exchangerate_$i"} = "";
    }
    $exchangerate = qq|&nbsp;|;
    if ($form->{currency} ne $form->{defaultcurrency}) {
      if ($form->{"forex_$i"}) {
        $exchangerate = qq|<input type="hidden" name="exchangerate_$i" value="$form->{"exchangerate_$i"}">$form->{"exchangerate_$i"}|;
      } else {
        $exchangerate = qq|<input name="exchangerate_$i" size="10" value="$form->{"exchangerate_$i"}">|;
      }
    }

    $exchangerate .= qq|<input type="hidden" name="forex_$i" value="$form->{"forex_$i"}">|;

    $column_data{"paid_$i"} =
      qq|<td align="center"><input name="paid_$i" size="11" value="$form->{"paid_$i"}" onBlur=\"check_right_number_format(this)\"></td>|;
    $column_data{"exchangerate_$i"} = qq|<td align="center">$exchangerate</td>|;
    $column_data{"AR_paid_$i"}      =
      qq|<td align="center"><select name="AR_paid_$i">$form->{"selectAR_paid_$i"}</select></td>|;
    $column_data{"datepaid_$i"} =
      qq|<td align="center"><input id="datepaid_$i" name="datepaid_$i"  size="11" title="$myconfig{dateformat}" value="$form->{"datepaid_$i"}" onBlur=\"check_right_date_format(this)\">
         <input type="button" name="datepaid_$i" id="trigger_datepaid_$i" value="?"></td>|;
    $column_data{"source_$i"} =
      qq|<td align=center><input name="source_$i" size="11" value="$form->{"source_$i"}"></td>|;
    $column_data{"memo_$i"} =
      qq|<td align="center"><input name="memo_$i" size="11" value="$form->{"memo_$i"}"></td>|;

    map { print qq|$column_data{"${_}_$i"}\n| } @column_index;
    print "
        </tr>\n";
    push(@triggers, "datepaid_$i", "BL", "trigger_datepaid_$i");
  }

  my $paid_missing = $form->{oldinvtotal} - $totalpaid;

  print qq|
    <tr>
      <td></td>
      <td></td>
      <td align="center">| . $locale->text('Total') . qq|</td>
      <td align="center">| . H($form->format_amount(\%myconfig, $totalpaid, 2)) . qq|</td>
    </tr>
    <tr>
      <td></td>
      <td></td>
      <td align="center">| . $locale->text('Missing amount') . qq|</td>
      <td align="center">| . H($form->format_amount(\%myconfig, $paid_missing, 2)) . qq|</td>
    </tr>
|;

  map({ print($cgi->hidden("-name" => $_, "-value" => $form->{$_})); } qw(paidaccounts selectAR_paid oldinvtotal));
  print qq|<input type="hidden" name="oldtotalpaid" value="$totalpaid">
    </table>
    </td>
  </tr>
  <tr>
    <td><hr size="3" noshade></td>
  </tr>
  <tr>
    <td>
|;

  print_options();

  print qq|
    </td>
  </tr>
</table>
|;

  $invdate  = $form->datetonum($form->{invdate},  \%myconfig);
  $closedto = $form->datetonum($form->{closedto}, \%myconfig);

  if ($form->{id}) {
    my $show_storno = !$form->{storno} && !IS->has_storno(\%myconfig, $form, "ar") && (($totalpaid == 0) || ($totalpaid eq ""));

    print qq|
    <input class="submit" type="submit" accesskey="u" name="action" id="update_button" value="|
      . $locale->text('Update') . qq|">
    <input class="submit" type="submit" name="action" value="|
      . $locale->text('Ship to') . qq|">
    <input class="submit" type="submit" name="action" value="|
      . $locale->text('Print') . qq|">
    <input class="submit" type="submit" name="action" value="|
      . $locale->text('E-mail') . qq|"> |;
    print qq|<input class="submit" type="submit" name="action" value="|
      . $locale->text('Storno') . qq|"> | if ($show_storno);
    print qq|<input class="submit" type="submit" name="action" value="|
      . $locale->text('Post Payment') . qq|">
|;
    print qq|<input class="submit" type="submit" name="action" value="|
      . $locale->text('Use As Template') . qq|">
|;
    if ($form->{id} && !($form->{type} eq "credit_note")) {
      print qq|
    <input class="submit" type="submit" name="action" value="|
      . $locale->text('Credit Note') . qq|">
|;
    }
    if ($form->{radier}) {
    print qq|
    <input class="submit" type="submit" name="action" value="|
      . $locale->text('Delete') . qq|">
|;
    }


    if ($invdate > $closedto) {
      print qq|
      <input class="submit" type="submit" name="action" value="|
        . $locale->text('Order') . qq|">
|;
    }

    print qq|
      <input type="button" class="submit" onclick="follow_up_window()" value="|
      . $locale->text('Follow-Up')
      . qq|">|;

  } else {
    if ($invdate > $closedto) {
      print qq|<input class="submit" type="submit" name="action" id="update_button" value="|
        . $locale->text('Update') . qq|">
      <input class="submit" type="submit" name="action" value="|
        . $locale->text('Ship to') . qq|">
      <input class="submit" type="submit" name="action" value="|
        . $locale->text('Preview') . qq|">
      <input class="submit" type="submit" name="action" value="|
        . $locale->text('E-mail') . qq|">
      <input class="submit" type="submit" name="action" value="|
        . $locale->text('Print and Post') . qq|">
      <input class="submit" type="submit" name="action" value="|
        . $locale->text('Post') . qq|"> | .
        NTI($cgi->submit('-name' => 'action', '-value' => $locale->text('Save draft'),
                         '-class' => 'submit'));
    }
  }

  # button for saving history
  if($form->{id} ne "") {
    print qq|
  	  <input type="button" class="submit" onclick="set_history_window(|
  	  . Q($form->{id})
  	  . qq|);" name="history" id="history" value="|
  	  . $locale->text('history')
  	  . qq|"> |;
  }
  # /button for saving history
  
  # mark_as_paid button 
  if($form->{id} ne "") {  
    print qq|<input type="submit" class="submit" name="action" value="| 
          . $locale->text('mark as paid') . qq|">|;
  }
  # /mark_as_paid button
  print $form->write_trigger(\%myconfig, scalar(@triggers) / 3, @triggers) .
    qq|

<input type="hidden" name="rowcount" value="$form->{rowcount}">
| .
$cgi->hidden("-name" => "callback", "-value" => $form->{callback})
. $cgi->hidden('-name' => 'draft_id', '-default' => [$form->{draft_id}])
. $cgi->hidden('-name' => 'draft_description', '-default' => [$form->{draft_description}])
. $cgi->hidden('-name' => 'customer_discount', '-value' => [$form->{customer_discount}])
. qq|
</form>

</body>

 </html>
|;

  $lxdebug->leave_sub();
}

sub mark_as_paid {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  &mark_as_paid_common(\%myconfig,"ar");  

  $lxdebug->leave_sub();
}

sub update {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  my ($recursive_call) = shift;

  map { $form->{$_} = $form->parse_amount(\%myconfig, $form->{$_}) } qw(exchangerate creditlimit creditremaining) unless $recursive_call;

  $form->{print_and_post} = 0         if $form->{second_run};
  $taxincluded            = "checked" if $form->{taxincluded};
  $form->{update} = 1;

  &check_name(customer);

  $form->{taxincluded} ||= $taxincluded;

  $form->{forex}        = $form->check_exchangerate(\%myconfig, $form->{currency}, $form->{invdate}, 'buy');
  $form->{exchangerate} = $form->{forex} if $form->{forex};

  for $i (1 .. $form->{paidaccounts}) {
    next unless $form->{"paid_$i"};
    map { $form->{"${_}_$i"} = $form->parse_amount(\%myconfig, $form->{"${_}_$i"}) } qw(paid exchangerate);
    $form->{"forex_$i"}        = $form->check_exchangerate(\%myconfig, $form->{currency}, $form->{"datepaid_$i"}, 'buy');
    $form->{"exchangerate_$i"} = $form->{"forex_$i"} if $form->{"forex_$i"};
  }

  $i            = $form->{rowcount};
  $exchangerate = $form->{exchangerate} || 1;

  # if last row empty, check the form otherwise retrieve new item
  if (   ($form->{"partnumber_$i"} eq "")
      && ($form->{"description_$i"} eq "")
      && ($form->{"partsgroup_$i"}  eq "")) {

    $form->{creditremaining} += ($form->{oldinvtotal} - $form->{oldtotalpaid});
    &check_form;

  } else {

    IS->retrieve_item(\%myconfig, \%$form);

    $rows = scalar @{ $form->{item_list} };

    $form->{"discount_$i"} = $form->format_amount(\%myconfig, $form->{customer_discount} * 100);

    if ($rows) {
      $form->{"qty_$i"} = ($form->{"qty_$i"} * 1) ? $form->{"qty_$i"} : 1;

      if ($rows > 1) {

        &select_item;
        exit;

      } else {

        $sellprice = $form->parse_amount(\%myconfig, $form->{"sellprice_$i"});

        map { $form->{item_list}[$i]{$_} =~ s/\"/&quot;/g } qw(partnumber description unit);
        map { $form->{"${_}_$i"} = $form->{item_list}[0]{$_} } keys %{ $form->{item_list}[0] };
        
        $form->{payment_id}    = $form->{"part_payment_id_$i"} if $form->{"part_payment_id_$i"} ne "";
        $form->{"discount_$i"} = 0                             if $form->{"not_discountable_$i"};

        $form->{"marge_price_factor_$i"} = $form->{item_list}->[0]->{price_factor};

        ($sellprice || $form->{"sellprice_$i"}) =~ /\.(\d+)/;
        $decimalplaces = max 2, length $1;

        if ($sellprice) {
          $form->{"sellprice_$i"} = $sellprice;
        } else {
          # if there is an exchange rate adjust sellprice
          $form->{"sellprice_$i"} *= (1 - $form->{tradediscount});
          $form->{"sellprice_$i"} /= $exchangerate;
        }

        $form->{"listprice_$i"} /= $exchangerate;

        $amount = $form->{"sellprice_$i"} * $form->{"qty_$i"} * (1 - $form->{"discount_$i"} / 100);
        map { $form->{"${_}_base"} = 0 }                                 split / /, $form->{taxaccounts};
        map { $form->{"${_}_base"} += $amount }                          split / /, $form->{"taxaccounts_$i"};
        map { $amount += ($form->{"${_}_base"} * $form->{"${_}_rate"}) } split / /, $form->{"taxaccounts_$i"} if !$form->{taxincluded};

        $form->{creditremaining} -= $amount;

        map { $form->{"${_}_$i"} = $form->format_amount(\%myconfig, $form->{"${_}_$i"}, $decimalplaces) } qw(sellprice listprice);

        $form->{"qty_$i"} = $form->format_amount(\%myconfig, $form->{"qty_$i"});

        if ($lizenzen) {
          if ($form->{"inventory_accno_$i"} ne "") {
            $form->{"lizenzen_$i"} = qq|<option></option>|;
            foreach $item (@{ $form->{LIZENZEN}{ $form->{"id_$i"} } }) {
              $form->{"lizenzen_$i"} .= qq|<option value="$item->{"id"}">$item->{"licensenumber"}</option>|;
            }
            $form->{"lizenzen_$i"} .= qq|<option value=-1>Neue Lizenz</option>|;
          }
        }

        # get pricegroups for parts
        IS->get_pricegroups_for_parts(\%myconfig, \%$form);

        # build up html code for prices_$i
        &set_pricegroup($i);
      }

      &display_form;

    } else {

      # ok, so this is a new part
      # ask if it is a part or service item

      if (   $form->{"partsgroup_$i"}
          && ($form->{"partsnumber_$i"} eq "")
          && ($form->{"description_$i"} eq "")) {
        $form->{rowcount}--;
        $form->{"discount_$i"} = "";
        display_form();

      } else {
        $form->{"id_$i"}   = 0;
        new_item();
      }
    }
  }
  $lxdebug->leave_sub();
}

sub post_payment {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  $form->{defaultcurrency} = $form->get_default_currency(\%myconfig);
  for $i (1 .. $form->{paidaccounts}) {
    if ($form->{"paid_$i"}) {
      $datepaid = $form->datetonum($form->{"datepaid_$i"}, \%myconfig);

      $form->isblank("datepaid_$i", $locale->text('Payment date missing!'));

      $form->error($locale->text('Cannot post payment for a closed period!'))
        if ($form->date_closed($form->{"datepaid_$i"}, \%myconfig));

      if ($form->{currency} ne $form->{defaultcurrency}) {
        $form->{"exchangerate_$i"} = $form->{exchangerate}
          if ($invdate == $datepaid);
        $form->isblank("exchangerate_$i",
                       $locale->text('Exchangerate for payment missing!'));
      }
    }
  }

  ($form->{AR})      = split /--/, $form->{AR};
  ($form->{AR_paid}) = split /--/, $form->{AR_paid};
  relink_accounts();
  $form->redirect($locale->text('Payment posted!'))
      if (IS->post_payment(\%myconfig, \%$form));
    $form->error($locale->text('Cannot post payment!'));


  $lxdebug->leave_sub();
}

sub post {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  $form->{defaultcurrency} = $form->get_default_currency(\%myconfig);
  $form->isblank("invdate",  $locale->text('Invoice Date missing!'));
  $form->isblank("customer", $locale->text('Customer missing!'));
  $form->error($locale->text('Cannot post invoice for a closed period!'))
        if ($form->date_closed($form->{"invdate"}, \%myconfig));

  $form->{invnumber} =~ s/^\s*//g;
  $form->{invnumber} =~ s/\s*$//g;

  # if oldcustomer ne customer redo form
  if (&check_name(customer)) {
    &update;
    exit;
  }
  if ($form->{second_run}) {
    $form->{print_and_post} = 0;
  }

  &validate_items;

  $closedto = $form->datetonum($form->{closedto}, \%myconfig);
  $invdate  = $form->datetonum($form->{invdate},  \%myconfig);

  $form->error($locale->text('Cannot post invoice for a closed period!'))
    if ($invdate <= $closedto);

  $form->isblank("exchangerate", $locale->text('Exchangerate missing!'))
    if ($form->{currency} ne $form->{defaultcurrency});

  for $i (1 .. $form->{paidaccounts}) {
    if ($form->parse_amount(\%myconfig, $form->{"paid_$i"})) {
      $datepaid = $form->datetonum($form->{"datepaid_$i"}, \%myconfig);

      $form->isblank("datepaid_$i", $locale->text('Payment date missing!'));

      $form->error($locale->text('Cannot post payment for a closed period!'))
        if ($form->date_closed($form->{"datepaid_$i"}, \%myconfig));

      if ($form->{currency} ne $form->{defaultcurrency}) {
        $form->{"exchangerate_$i"} = $form->{exchangerate}
          if ($invdate == $datepaid);
        $form->isblank("exchangerate_$i",
                       $locale->text('Exchangerate for payment missing!'));
      }
    }
  }

  ($form->{AR})        = split /--/, $form->{AR};
  ($form->{AR_paid})   = split /--/, $form->{AR_paid};
  $form->{storno}    ||= 0;

  $form->{label} = $locale->text('Invoice');

  $form->{id} = 0 if $form->{postasnew};

  # get new invnumber in sequence if no invnumber is given or if posasnew was requested
  if ($form->{postasnew}) {
    if ($form->{type} eq "credit_note") {
      undef($form->{cnnumber});
    } else {
      undef($form->{invnumber});
    }
  }

  relink_accounts();
  $form->error($locale->text('Cannot post invoice!'))
    unless IS->post_invoice(\%myconfig, \%$form);
  remove_draft() if $form->{remove_draft};

  if(!exists $form->{addition}) {
    $form->{snumbers} = qq|invnumber_| . $form->{invnumber};
    $form->{addition} = $print_post     ? "PRINTED AND POSTED" :
                        $form->{storno} ? "STORNO"             :
                                          "POSTED";
    $form->save_history($form->dbconnect(\%myconfig));
  }

  $form->redirect( $form->{label} . " $form->{invnumber} " . $locale->text('posted!'))
    unless $print_post;

  $lxdebug->leave_sub();
}

sub print_and_post {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  $old_form               = new Form;
  $print_post             = 1;
  $form->{print_and_post} = 1;
  &post();

  &edit();
  $lxdebug->leave_sub();

}

sub use_as_template {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  map { delete $form->{$_} } qw(printed emailed queued invnumber invdate deliverydate id datepaid_1 source_1 memo_1 paid_1 exchangerate_1 AP_paid_1 storno);
  $form->{paidaccounts} = 1;
  $form->{rowcount}--;
  $form->{invdate} = $form->current_date(\%myconfig);
  &display_form;

  $lxdebug->leave_sub();
}

sub storno {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  if ($form->{storno}) {
    $form->error($locale->text('Cannot storno storno invoice!'));
  }

  if (IS->has_storno(\%myconfig, $form, "ar")) {
    $form->error($locale->text("Invoice has already been storno'd!"));
  }

  map({ my $key = $_; delete($form->{$key}) unless (grep({ $key eq $_ } qw(id login password stylesheet type))); } keys(%{ $form }));

  invoice_links();
  prepare_invoice();
  relink_accounts();

  # Payments must not be recorded for the new storno invoice.
  $form->{paidaccounts} = 0;
  map { my $key = $_; delete $form->{$key} if grep { $key =~ /^$_/ } qw(datepaid_ source_ memo_ paid_ exchangerate_ AR_paid_) } keys %{ $form };

  $form->{storno_id} = $form->{id};
  $form->{storno} = 1;
  $form->{id} = "";
  $form->{invnumber} = "Storno zu " . $form->{invnumber};
  $form->{rowcount}++;

  post();
  $lxdebug->leave_sub();
}

sub preview {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  $form->{preview} = 1;
  $old_form = new Form;
  for (keys %$form) { $old_form->{$_} = $form->{$_} }

  &print_form($old_form);
  $lxdebug->leave_sub();

}

sub delete {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  if ($form->{second_run}) {
    $form->{print_and_post} = 0;
  }
  $form->header;

  print qq|
<body>

<form method="post" action="$form->{script}">
|;

  # delete action variable
  map { delete $form->{$_} } qw(action header);

  foreach $key (keys %$form) {
    next if (($key eq 'login') || ($key eq 'password') || ('' ne ref $form->{$key}));
    $form->{$key} =~ s/\"/&quot;/g;
    print qq|<input type="hidden" name="$key" value="$form->{$key}">\n|;
  }

  print qq|
<h2 class="confirm">| . $locale->text('Confirm!') . qq|</h2>

<h4>|
    . $locale->text('Are you sure you want to delete Invoice Number')
    . qq| $form->{invnumber}
</h4>

<p>
<input name="action" class="submit" type="submit" value="|
    . $locale->text('Yes') . qq|">
</form>
|;

  $lxdebug->leave_sub();
}

sub credit_note {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  $form->{transdate} = $form->{invdate} = $form->current_date(\%myconfig);
  $form->{duedate} =
    $form->current_date(\%myconfig, $form->{invdate}, $form->{terms} * 1);

  $form->{id}     = '';
  $form->{rowcount}--;
  $form->{shipto} = 1;


  $form->{title}  = $locale->text('Add Credit Note');
  $form->{script} = 'is.pl';
  $script         = "is";
  $buysell        = 'buy';


  # bo creates the id, reset it
  map { delete $form->{$_} }
    qw(id invnumber subject message cc bcc printed emailed queued);
  $form->{ $form->{vc} } =~ s/--.*//g;
  $form->{type} = "credit_note";


  map { $form->{"select$_"} = "" } ($form->{vc}, currency);

  map { $form->{$_} = $form->parse_amount(\%myconfig, $form->{$_}) }
    qw(creditlimit creditremaining);

  $currency = $form->{currency};
  &invoice_links;

  $form->{currency}     = $currency;
  $form->{forex}        = $form->check_exchangerate( \%myconfig, $form->{currency}, $form->{invdate}, $buysell);
  $form->{exchangerate} = $form->{forex} || '';

  $form->{creditremaining} -= ($form->{oldinvtotal} - $form->{ordtotal});

  &prepare_invoice;


  &display_form;

  $lxdebug->leave_sub();
}

sub yes {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  if (IS->delete_invoice(\%myconfig, \%$form, $spool)) {
    # saving the history
  	if(!exists $form->{addition}) {
    $form->{snumbers} = qq|invnumber_| . $form->{invnumber};
  	  $form->{addition} = "DELETED";
  	  $form->save_history($form->dbconnect(\%myconfig));
    }
    # /saving the history
    $form->redirect($locale->text('Invoice deleted!'));
  }
  $form->error($locale->text('Cannot delete invoice!'));

  $lxdebug->leave_sub();
}

sub e_mail {
  $lxdebug->enter_sub();

  $auth->assert('invoice_edit');

  if (!$form->{id}) {
    $print_post = 1;

    my $saved_form = save_form();

    post();

    restore_form($saved_form, 0, qw(id invnumber));
  }

  edit_e_mail();

  $lxdebug->leave_sub();
}