+
+sub setup_sales_purchase_print_options {
+  my $print_form = Form->new('');
+  $print_form->{printers}  = SL::DB::Manager::Printer->get_all_sorted;
+
+  $print_form->{$_} = $::form->{$_} for qw(type media printer_id storno formname groupitems);
+
+  return SL::Helper::PrintOptions->get_print_options(
+    form    => $print_form,
+    options => {
+      show_headers => 1,
+    },
+  );
+}
+
+sub _get_files_for_email_dialog {
+  my %files = map { ($_ => []) } qw(versions files vc_files part_files project_files);
+
+  return %files if !$::instance_conf->get_doc_storage;
+
+  if ($::form->{id}) {
+    $files{versions} = [ SL::File->get_all_versions(object_id => $::form->{id},    object_type => $::form->{type}, file_type => 'document') ];
+    $files{files}    = [ SL::File->get_all(         object_id => $::form->{id},    object_type => $::form->{type}, file_type => 'attachment') ];
+    $files{vc_files} = [ SL::File->get_all(         object_id => $::form->{vc_id}, object_type => $::form->{vc},   file_type => 'attachment') ]
+      if $::form->{vc} && $::form->{"vc_id"};
+    $files{project_files} = [ SL::File->get_all(object_id => $::form->{project_id}, object_type => 'project',file_type => 'attachment') ]
+      if $::form->{project_id};
+  }
+
+  my @parts =
+    uniq_by { $_->{id} }
+    grep    { $_->{id} }
+    map     {
+      +{ id         => $::form->{"id_$_"},
+         partnumber => $::form->{"partnumber_$_"},
+       }
+    } (1 .. $::form->{rowcount});
+
+  foreach my $part (@parts) {
+    my @pfiles = SL::File->get_all(object_id => $part->{id}, object_type => 'part');
+    push @{ $files{part_files} }, map { +{ %{ $_ }, partnumber => $part->{partnumber} } } @pfiles;
+  }
+
+  foreach my $key (keys %files) {
+    $files{$key} = [ sort_by { lc $_->{db_file}->{file_name} } @{ $files{$key} } ];
+  }
+
+  return %files;
+}
+
+sub show_sales_purchase_email_dialog {
+  my $email = '';
+  my $email_cc = '';
+  my $record_email;
+  if ($::form->{cp_id}) {
+    $email = SL::DB::Contact->load_cached($::form->{cp_id})->cp_email;
+  }
+  # write a dispatch table if a third type enters
+  # check record mail for sales_invoice
+  if ($::form->{type} eq 'invoice' && (!$email || $::instance_conf->get_invoice_mail_settings ne 'cp')) {
+    # check for invoice_mail if defined (vc.invoice_email)
+    $record_email = SL::DB::Customer->load_cached($::form->{vc_id})->invoice_mail;
+    if ($record_email) {
+      # check if cc for contact is also wanted
+      $email_cc = $email if ($::instance_conf->get_invoice_mail_settings eq 'invoice_mail_cc_cp');
+      $email    = $record_email;
+    }
+  }
+  # check record mail for sales_delivery_order
+  if ($::form->{type} eq 'sales_delivery_order') {
+    # check for deliver_order_mail if defined (vc.delivery_order_mail)
+    $record_email = SL::DB::Customer->load_cached($::form->{vc_id})->delivery_order_mail;
+    if ($record_email) {
+      # check if cc for contact is also wanted
+      $email_cc = $email; # always cc to cp
+      $email    = $record_email;
+    }
+  }
+  # still no email? use general mail (vc.email)
+  if (!$email && $::form->{vc} && $::form->{vc_id}) {
+    $email = SL::DB::Customer->load_cached($::form->{vc_id})->email if 'customer' eq $::form->{vc};
+    $email = SL::DB::Vendor  ->load_cached($::form->{vc_id})->email if 'vendor'   eq $::form->{vc};
+  }
+
+  $email = '' if $::form->{type} eq 'purchase_delivery_order';
+
+  $::form->{language} = $::form->get_template_language(\%::myconfig);
+  $::form->{language} = "_" . $::form->{language};
+
+  my %body_params = (record_email => $record_email);
+  if (($::form->{type} eq 'invoice') && $::form->{direct_debit}) {
+    $body_params{translation_type}          = "preset_text_invoice_direct_debit";
+    $body_params{fallback_translation_type} = "preset_text_invoice";
+  }
+
+  $::form->{all_employees} = SL::DB::Manager::Employee->get_all(query => [ deleted => 0 ]);
+  my $email_form = {
+    to                  => $email,
+    cc                  => $email_cc,
+    subject             => $::form->generate_email_subject,
+    message             => $::form->generate_email_body(%body_params),
+    attachment_filename => $::form->generate_attachment_filename,
+    js_send_function    => 'kivi.SalesPurchase.send_email()',
+  };
+
+  my %files = _get_files_for_email_dialog();
+  my $html  = $::form->parse_html_template("common/_send_email_dialog", {
+    email_form  => $email_form,
+    show_bcc    => $::auth->assert('email_bcc', 'may fail'),
+    FILES       => \%files,
+    is_customer => $::form->{vc} eq 'customer',
+    is_invoice_mail => ($record_email && $::form->{type} eq 'invoice'),
+    ALL_EMPLOYEES   => $::form->{all_employees},
+  });
+
+  print $::form->ajax_response_header, $html;
+}
+
+sub send_sales_purchase_email {
+  my $type        = $::form->{type};
+  my $id          = $::form->{id};
+  my $script      = $type =~ m{sales_order|purchase_order|quotation} ? 'oe.pl'
+                  : $type =~ m{delivery_}                            ? 'do.pl'
+                  :                                                    'is.pl';
+
+  my $email_form  = delete $::form->{email_form};
+  my %field_names = (to => 'email');
+
+  $::form->{ $field_names{$_} // $_ } = $email_form->{$_} for keys %{ $email_form };
+
+  $::form->{media} = 'email';
+
+  if (($::form->{attachment_policy} // '') =~ m{^(?:old_file|no_file)$}) {
+    $::form->send_email(\%::myconfig, 'pdf');
+
+  } else {
+    print_form("return");
+    Common->save_email_status(\%::myconfig, $::form);
+  }
+
+  flash_later('info', $::locale->text('The email has been sent.'));
+
+  print $::form->redirect_header($script . '?action=edit&id=' . $::form->escape($id) . '&type=' . $::form->escape($type));
+}
+
+sub _maybe_attach_zugferd_data {
+  my ($form) = @_;
+
+  my $record = _make_record();
+
+  return if !$record
+    || !$record->can('customer')
+    || !$record->customer
+    || !$record->can('create_pdf_a_print_options')
+    || !$record->can('create_zugferd_data')
+    || !$record->customer->create_zugferd_invoices_for_this_customer;
+
+  eval {
+    my $xmlfile = File::Temp->new;
+    $xmlfile->print($record->create_zugferd_data);
+    $xmlfile->close;
+
+    $form->{TEMPLATE_DRIVER_OPTIONS}->{pdf_a}           = $record->create_pdf_a_print_options(zugferd_xmp_data => $record->create_zugferd_xmp_data);
+    $form->{TEMPLATE_DRIVER_OPTIONS}->{pdf_attachments} = [
+      { source       => $xmlfile,
+        name         => 'factur-x.xml',
+        description  => $::locale->text('Factur-X/ZUGFeRD invoice'),
+        relationship => '/Alternative',
+        mime_type    => 'text/xml',
+      }
+    ];
+  };
+
+  if (my $e = SL::X::ZUGFeRDValidation->caught) {
+    $::form->error($e->message);
+  }
+}