ZUGFeRD: Zahlungsinfos ergänzt: Kontonummer, Typ=Einzug/Überweisung
[kivitendo-erp.git] / SL / DB / Helper / ZUGFeRD.pm
1 package SL::DB::Helper::ZUGFeRD;
2
3 use strict;
4 use utf8;
5
6 use parent qw(Exporter);
7 our @EXPORT = qw(create_zugferd_data create_zugferd_xmp_data);
8
9 use SL::DB::BankAccount;
10 use SL::DB::GenericTranslation;
11 use SL::DB::Tax;
12 use SL::DB::TaxKey;
13 use SL::Helper::ISO3166;
14 use SL::Helper::ISO4217;
15 use SL::Helper::UNECERecommendation20;
16
17 use Carp;
18 use Encode qw(encode);
19 use List::MoreUtils qw(any pairwise);
20 use List::Util qw(first sum);
21 use Template;
22 use XML::Writer;
23
24 my @line_names = qw(LineOne LineTwo LineThree);
25
26 sub _u8 {
27   my ($value) = @_;
28   return encode('UTF-8', $value // '');
29 }
30
31 sub _r2 {
32   my ($value) = @_;
33   return $::form->round_amount($value, 2);
34 }
35
36 sub _type_name {
37   my ($self) = @_;
38   my $type   = $self->invoice_type;
39
40   no warnings 'once';
41   return $type eq 'ar_transaction' ? $::locale->text('Invoice') : $self->displayable_type;
42 }
43
44 sub _type_code {
45   my ($self) = @_;
46   my $type   = $self->invoice_type;
47
48   # 326 (Partial invoice)
49   # 380 (Commercial invoice)
50   # 384 (Corrected Invoice)
51   # 381 (Credit note)
52   # 389 (Credit note, self billed invoice)
53
54   return $type eq 'credit_note'        ? 381
55        : $type eq 'invoice_storno'     ? 457
56        : $type eq 'credit_note_storno' ? 458
57        :                                 380;
58 }
59
60 sub _unit_code {
61   my ($unit) = @_;
62
63   # Mapping from kivitendo's units to UN/ECE Recommendation 20 & 21.
64   my $code = SL::Helper::UNECERecommendation20::map_name_to_code($unit);
65   return $code if $code;
66
67   $::lxdebug->message(LXDebug::WARN(), "ZUGFeRD unit name mapping: no UN/ECE Recommendation 20/21 unit known for kivitendo unit '$unit'; using 'C62'");
68
69   return 'C62';
70 }
71
72 sub _parse_our_address {
73   my @result;
74   my @street = grep { $_ } ($::instance_conf->get_address_street1, $::instance_conf->get_address_street2);
75
76   push @result, [ 'PostcodeCode', $::instance_conf->get_address_zipcode ] if $::instance_conf->get_address_zipcode;
77   push @result, grep { $_->[1] } pairwise { [ $a, $b] } @line_names, @street;
78   push @result, [ 'CityName', $::instance_conf->get_address_city ] if $::instance_conf->get_address_city;
79   push @result, [ 'CountryID', SL::Helper::ISO3166::map_name_to_alpha_2_code($::instance_conf->get_address_country) // 'DE' ];
80
81   return @result;
82 }
83
84 sub _customer_postal_trade_address {
85   my (%params) = @_;
86
87   #       <ram:PostalTradeAddress>
88   $params{xml}->startTag("ram:PostalTradeAddress");
89
90   my @parts = grep { $_ } map { $params{customer}->$_ } qw(department_1 department_2 street);
91
92   $params{xml}->dataElement("ram:PostcodeCode", _u8($params{customer}->zipcode));
93   $params{xml}->dataElement("ram:" . $_->[0],   _u8($_->[1])) for grep { $_->[1] } pairwise { [ $a, $b] } @line_names, @parts;
94   $params{xml}->dataElement("ram:CityName",     _u8($params{customer}->city));
95   $params{xml}->dataElement("ram:CountryID",    _u8(SL::Helper::ISO3166::map_name_to_alpha_2_code($params{customer}->country) // 'DE'));
96   $params{xml}->endTag;
97   #       </ram:PostalTradeAddress>
98 }
99
100 sub _tax_rate_and_code {
101   my ($taxzone, $tax) = @_;
102
103   my ($tax_rate, $tax_code) = @_;
104
105   if ($taxzone->description =~ m{Au.*erhalb}) {
106     $tax_rate = 0;
107     $tax_code = 'G';
108
109   } elsif ($taxzone->description =~ m{EU mit}) {
110     $tax_rate = 0;
111     $tax_code = 'K';
112
113   } else {
114     $tax_rate = $tax->rate * 100;
115     $tax_code = !$tax_rate ? 'Z' : 'S';
116   }
117
118   return (rate => $tax_rate, code => $tax_code);
119 }
120
121 sub _line_item {
122   my ($self, %params) = @_;
123
124   my $item_ptc = $params{ptc_data}->{items}->[$params{line_number}];
125
126   my $taxkey   = $item_ptc->{taxkey_id} ? SL::DB::TaxKey->load_cached($item_ptc->{taxkey_id}) : undef;
127   my $tax      = $item_ptc->{taxkey_id} ? SL::DB::Tax->load_cached($taxkey->tax_id)           : undef;
128   my %tax_info = _tax_rate_and_code($self->taxzone, $tax);
129
130   # <ram:IncludedSupplyChainTradeLineItem>
131   $params{xml}->startTag("ram:IncludedSupplyChainTradeLineItem");
132
133   #   <ram:AssociatedDocumentLineDocument>
134   $params{xml}->startTag("ram:AssociatedDocumentLineDocument");
135   $params{xml}->dataElement("ram:LineID", $params{line_number} + 1);
136   $params{xml}->endTag;
137
138   $params{xml}->startTag("ram:SpecifiedTradeProduct");
139   $params{xml}->dataElement("ram:SellerAssignedID", _u8($params{item}->part->partnumber));
140   $params{xml}->dataElement("ram:Name",             _u8($params{item}->description));
141   $params{xml}->endTag;
142
143   $params{xml}->startTag("ram:SpecifiedLineTradeAgreement");
144   $params{xml}->startTag("ram:NetPriceProductTradePrice");
145   $params{xml}->dataElement("ram:ChargeAmount", _r2($item_ptc->{sellprice}));
146   $params{xml}->endTag;
147   $params{xml}->endTag;
148   #   </ram:SpecifiedLineTradeAgreement>
149
150   #   <ram:SpecifiedLineTradeDelivery>
151   $params{xml}->startTag("ram:SpecifiedLineTradeDelivery");
152   $params{xml}->dataElement("ram:BilledQuantity", $params{item}->qty, unitCode => _unit_code($params{item}->unit));
153   $params{xml}->endTag;
154   #   </ram:SpecifiedLineTradeDelivery>
155
156   #   <ram:SpecifiedLineTradeSettlement>
157   $params{xml}->startTag("ram:SpecifiedLineTradeSettlement");
158
159   #     <ram:ApplicableTradeTax>
160   $params{xml}->startTag("ram:ApplicableTradeTax");
161   $params{xml}->dataElement("ram:TypeCode",              "VAT");
162   $params{xml}->dataElement("ram:CategoryCode",          $tax_info{code});
163   $params{xml}->dataElement("ram:RateApplicablePercent", _r2($tax_info{rate}));
164   $params{xml}->endTag;
165   #     </ram:ApplicableTradeTax>
166
167   #     <ram:SpecifiedTradeSettlementLineMonetarySummation>
168   $params{xml}->startTag("ram:SpecifiedTradeSettlementLineMonetarySummation");
169   $params{xml}->dataElement("ram:LineTotalAmount", _r2($item_ptc->{linetotal}));
170   $params{xml}->endTag;
171   #     </ram:SpecifiedTradeSettlementLineMonetarySummation>
172
173   $params{xml}->endTag;
174   #   </ram:SpecifiedLineTradeSettlement>
175
176   $params{xml}->endTag;
177   # <ram:IncludedSupplyChainTradeLineItem>
178 }
179
180 sub _specified_trade_settlement_payment_means {
181   my ($self, %params) = @_;
182
183   #     <ram:SpecifiedTradeSettlementPaymentMeans>
184   $params{xml}->startTag('ram:SpecifiedTradeSettlementPaymentMeans');
185   $params{xml}->dataElement('ram:TypeCode', $self->direct_debit ? 59 : 58); # 59 = SEPA direct debit, 58 = SEPA credit transfer
186
187   if ($self->direct_debit) {
188     $params{xml}->startTag('ram:PayerPartyDebtorFinancialAccount');
189     $params{xml}->dataElement('ram:IBANID', $self->customer->iban);
190     $params{xml}->endTag;
191
192   } else {
193     $params{xml}->startTag('ram:PayeePartyCreditorFinancialAccount');
194     $params{xml}->dataElement('ram:IBANID', $params{bank_account}->iban);
195     $params{xml}->endTag;
196   }
197
198   $params{xml}->endTag;
199   #     </ram:SpecifiedTradeSettlementPaymentMeans>
200 }
201
202 sub _taxes {
203   my ($self, %params) = @_;
204
205   my %taxkey_info;
206
207   foreach my $item (@{ $params{ptc_data}->{items} }) {
208     $taxkey_info{$item->{taxkey_id}} //= {
209       linetotal  => 0,
210       tax_amount => 0,
211     };
212     my $info             = $taxkey_info{$item->{taxkey_id}};
213     $info->{taxkey}    //= SL::DB::TaxKey->load_cached($item->{taxkey_id});
214     $info->{tax}       //= SL::DB::Tax->load_cached($info->{taxkey}->tax_id);
215     $info->{linetotal}  += $item->{linetotal};
216     $info->{tax_amount} += $item->{tax_amount};
217   }
218
219   foreach my $taxkey_id (sort keys %taxkey_info) {
220     my $info     = $taxkey_info{$taxkey_id};
221     my %tax_info = _tax_rate_and_code($self->taxzone, $info->{tax});
222
223     #     <ram:ApplicableTradeTax>
224     $params{xml}->startTag("ram:ApplicableTradeTax");
225     $params{xml}->dataElement("ram:CalculatedAmount",      _r2($params{ptc_data}->{taxes}->{$info->{tax}->{chart_id}}));
226     $params{xml}->dataElement("ram:TypeCode",              "VAT");
227     $params{xml}->dataElement("ram:BasisAmount",           _r2($info->{linetotal}));
228     $params{xml}->dataElement("ram:CategoryCode",          $tax_info{code});
229     $params{xml}->dataElement("ram:RateApplicablePercent", _r2($tax_info{rate}));
230     $params{xml}->endTag;
231     #     </ram:ApplicableTradeTax>
232   }
233 }
234
235 sub _calculate_payment_terms_values {
236   my ($self) = @_;
237
238   my (%vars, %amounts, %formatted_amounts);
239
240   local $::myconfig{numberformat} = $::myconfig{numberformat};
241   local $::myconfig{dateformat}   = $::myconfig{dateformat};
242
243   if ($self->language_id) {
244     my $language = SL::DB::Language->load_cached($self->language_id);
245     $::myconfig{dateformat}   = $language->output_dateformat   if $language->output_dateformat;
246     $::myconfig{numberformat} = $language->output_numberformat if $language->output_numberformat;
247   }
248
249   $vars{currency}              = $self->currency->name if $self->currency;
250   $vars{$_}                    = $self->customer->$_      for qw(account_number bank bank_code bic iban mandate_date_of_signature mandator_id);
251   $vars{$_}                    = $self->payment_terms->$_ for qw(terms_netto terms_skonto percent_skonto);
252   $vars{payment_description}   = $self->payment_terms->description;
253   $vars{netto_date}            = $self->payment_terms->calc_date(reference_date => $self->transdate, due_date => $self->duedate, terms => 'net')->to_kivitendo;
254   $vars{skonto_date}           = $self->payment_terms->calc_date(reference_date => $self->transdate, due_date => $self->duedate, terms => 'discount')->to_kivitendo;
255
256   $amounts{invtotal}           = $self->amount;
257   $amounts{total}              = $self->amount - $self->paid;
258
259   $amounts{skonto_in_percent}  = 100.0 * $vars{percent_skonto};
260   $amounts{skonto_amount}      = $amounts{invtotal} * $vars{percent_skonto};
261   $amounts{invtotal_wo_skonto} = $amounts{invtotal} * (1 - $vars{percent_skonto});
262   $amounts{total_wo_skonto}    = $amounts{total}    * (1 - $vars{percent_skonto});
263
264   foreach (keys %amounts) {
265     $amounts{$_}           = $::form->round_amount($amounts{$_}, 2);
266     $formatted_amounts{$_} = $::form->format_amount(\%::myconfig, $amounts{$_}, 2);
267   }
268
269   return (
270     vars              => \%vars,
271     amounts           => \%amounts,
272     formatted_amounts => \%formatted_amounts,
273   );
274 }
275
276 sub _format_payment_terms_description {
277   my ($self, %params) = @_;
278
279   my $description = ($self->payment_terms->translated_attribute('description_long_invoice', $self->language_id) // '') || $self->payment_terms->description_long_invoice;
280   $description    =~ s{<\%$_\%>}{ $params{vars}->{$_} }ge              for keys %{ $params{vars} };
281   $description    =~ s{<\%$_\%>}{ $params{formatted_amounts}->{$_} }ge for keys %{ $params{formatted_amounts} };
282
283   return $description;
284 }
285
286 sub _payment_terms {
287   my ($self, %params) = @_;
288
289   return unless $self->payment_terms;
290
291   my %payment_terms_vars = _calculate_payment_terms_values($self);
292
293   #     <ram:SpecifiedTradePaymentTerms>
294   $params{xml}->startTag("ram:SpecifiedTradePaymentTerms");
295
296   $params{xml}->dataElement("ram:Description", _u8(_format_payment_terms_description($self, %payment_terms_vars)));
297
298   #       <ram:DueDateDateTime>
299   $params{xml}->startTag("ram:DueDateDateTime");
300   $params{xml}->dataElement("udt:DateTimeString", $self->duedate->strftime('%Y%m%d'), format => "102");
301   $params{xml}->endTag;
302   #       </ram:DueDateDateTime>
303
304   if ($self->payment_terms->percent_skonto && $self->payment_terms->terms_skonto) {
305     my $currency_id = _u8(SL::Helper::ISO4217::map_currency_name_to_code($self->currency->name) // 'EUR');
306
307     #       <ram:ApplicableTradePaymentDiscountTerms>
308     $params{xml}->startTag("ram:ApplicableTradePaymentDiscountTerms");
309     $params{xml}->dataElement("ram:BasisPeriodMeasure", $self->payment_terms->terms_skonto, unitCode => "DAY");
310     $params{xml}->dataElement("ram:BasisAmount",        _r2($payment_terms_vars{amounts}->{invtotal}), currencyID => $currency_id);
311     $params{xml}->dataElement("ram:CalculationPercent", _r2($self->payment_terms->percent_skonto * 100));
312     $params{xml}->endTag;
313     #       </ram:ApplicableTradePaymentDiscountTerms>
314   }
315
316   $params{xml}->endTag;
317   #     </ram:SpecifiedTradePaymentTerms>
318 }
319
320 sub _totals {
321   my ($self, %params) = @_;
322
323   #     <ram:SpecifiedTradeSettlementHeaderMonetarySummation>
324   $params{xml}->startTag("ram:SpecifiedTradeSettlementHeaderMonetarySummation");
325
326   $params{xml}->dataElement("ram:LineTotalAmount",     _r2($self->netamount));
327   $params{xml}->dataElement("ram:TaxBasisTotalAmount", _r2($self->netamount));
328   $params{xml}->dataElement("ram:TaxTotalAmount",      _r2(sum(values %{ $params{ptc_data}->{taxes} })), currencyID => "EUR");
329   $params{xml}->dataElement("ram:GrandTotalAmount",    _r2($self->amount));
330   $params{xml}->dataElement("ram:TotalPrepaidAmount",  _r2($self->paid));
331   $params{xml}->dataElement("ram:DuePayableAmount",    _r2($self->amount - $self->paid));
332
333   $params{xml}->endTag;
334   #     </ram:SpecifiedTradeSettlementHeaderMonetarySummation>
335 }
336
337 sub _exchanged_document_context {
338   my ($self, %params) = @_;
339
340   #   <rsm:ExchangedDocumentContext>
341   $params{xml}->startTag("rsm:ExchangedDocumentContext");
342
343   if ($self->customer->create_zugferd_invoices_for_this_customer == 2) {
344     $params{xml}->startTag("ram:TestIndicator");
345     $params{xml}->dataElement("udt:Indicator", "true");
346     $params{xml}->endTag;
347   }
348
349   $params{xml}->startTag("ram:GuidelineSpecifiedDocumentContextParameter");
350   $params{xml}->dataElement("ram:ID", "urn:cen.eu:en16931:2017#conformant#urn:zugferd.de:2p0:extended");
351   $params{xml}->endTag;
352   $params{xml}->endTag;
353   #   </rsm:ExchangedDocumentContext>
354 }
355
356 sub _included_note {
357   my ($self, %params) = @_;
358
359   $params{xml}->startTag("ram:IncludedNote");
360   $params{xml}->dataElement("ram:Content", _u8($params{note}));
361   $params{xml}->endTag;
362 }
363
364 sub _exchanged_document {
365   my ($self, %params) = @_;
366
367   #   <rsm:ExchangedDocument>
368   $params{xml}->startTag("rsm:ExchangedDocument");
369
370   $params{xml}->dataElement("ram:ID",       _u8($self->invnumber));
371   $params{xml}->dataElement("ram:Name",     _u8(_type_name($self)));
372   $params{xml}->dataElement("ram:TypeCode", _u8(_type_code($self)));
373
374   #     <ram:IssueDateTime>
375   $params{xml}->startTag("ram:IssueDateTime");
376   $params{xml}->dataElement("udt:DateTimeString", $self->transdate->strftime('%Y%m%d'), format => "102");
377   $params{xml}->endTag;
378   #     </ram:IssueDateTime>
379
380   if ($self->language && (($self->language->template_code // '') =~ m{^(de|en)}i)) {
381     $params{xml}->dataElement("ram:LanguageID", uc($1));
382   }
383
384   my $std_notes = SL::DB::Manager::GenericTranslation->get_all(
385     where => [
386       translation_type => 'ZUGFeRD/notes',
387       or               => [
388         language_id    => undef,
389         language_id    => $self->language_id,
390       ],
391       '!translation'   => undef,
392       '!translation'   => '',
393     ],
394   );
395
396   my $std_note = first { $_->language_id == $self->language_id } @{ $std_notes };
397   $std_note  //= first { !defined $_->language_id }              @{ $std_notes };
398
399   my $notes = $self->notes_as_stripped_html;
400
401   _included_note($self, %params, note => $self->transaction_description) if $self->transaction_description;
402   _included_note($self, %params, note => $notes)                         if $notes;
403   _included_note($self, %params, note => $std_note->translation)         if $std_note;
404
405   $params{xml}->endTag;
406   #   </rsm:ExchangedDocument>
407 }
408
409 sub _specified_tax_registration {
410   my ($ustid_nr, %params) = @_;
411
412   return unless $ustid_nr;
413
414   $ustid_nr = "DE$ustid_nr" unless $ustid_nr =~ m{^[A-Z]{2}};
415
416   #         <ram:SpecifiedTaxRegistration>
417   $params{xml}->startTag("ram:SpecifiedTaxRegistration");
418   $params{xml}->dataElement("ram:ID", _u8($ustid_nr), schemeID => "VA");
419   $params{xml}->endTag;
420   #         </ram:SpecifiedTaxRegistration>
421 }
422
423 sub _seller_trade_party {
424   my ($self, %params) = @_;
425
426   my @our_address            = _parse_our_address();
427
428   my $sales_person           = $self->salesman;
429   my $sales_person_auth      = SL::DB::Manager::AuthUser->find_by(login => $sales_person->login);
430   my %sales_person_cfg       = $sales_person_auth ? %{ $sales_person_auth->config_values } : ();
431   $sales_person_cfg{email} ||= $sales_person->deleted_email;
432   $sales_person_cfg{tel}   ||= $sales_person->deleted_tel;
433
434   #       <ram:SellerTradeParty>
435   $params{xml}->startTag("ram:SellerTradeParty");
436   $params{xml}->dataElement("ram:ID",   _u8($self->customer->c_vendor_id)) if ($self->customer->c_vendor_id // '') ne '';
437   $params{xml}->dataElement("ram:Name", _u8($::instance_conf->get_company));
438
439   #         <ram:DefinedTradeContact>
440   $params{xml}->startTag("ram:DefinedTradeContact");
441
442   $params{xml}->dataElement("ram:PersonName", _u8($sales_person_cfg{name} || $sales_person_cfg{login}));
443
444   if ($sales_person_cfg{tel}) {
445     $params{xml}->startTag("ram:TelephoneUniversalCommunication");
446     $params{xml}->dataElement("ram:CompleteNumber", _u8($sales_person_cfg{tel}));
447     $params{xml}->endTag;
448   }
449
450   if ($sales_person_cfg{email}) {
451     $params{xml}->startTag("ram:EmailURIUniversalCommunication");
452     $params{xml}->dataElement("ram:URIID", _u8($sales_person_cfg{email}));
453     $params{xml}->endTag;
454   }
455
456   $params{xml}->endTag;
457   #         </ram:DefinedTradeContact>
458
459   if (@our_address) {
460     #         <ram:PostalTradeAddress>
461     $params{xml}->startTag("ram:PostalTradeAddress");
462     foreach my $element (@our_address) {
463       $params{xml}->dataElement("ram:" . $element->[0], _u8($element->[1]));
464     }
465     $params{xml}->endTag;
466     #         </ram:PostalTradeAddress>
467   }
468
469   _specified_tax_registration($::instance_conf->get_co_ustid, %params);
470
471   $params{xml}->endTag;
472   #     </ram:SellerTradeParty>
473 }
474
475 sub _buyer_trade_party {
476   my ($self, %params) = @_;
477
478   #       <ram:BuyerTradeParty>
479   $params{xml}->startTag("ram:BuyerTradeParty");
480   $params{xml}->dataElement("ram:ID",   _u8($self->customer->customernumber));
481   $params{xml}->dataElement("ram:Name", _u8($self->customer->name));
482
483   _customer_postal_trade_address(%params, customer => $self->customer);
484   _specified_tax_registration($self->customer->ustid, %params);
485
486   $params{xml}->endTag;
487   #       </ram:BuyerTradeParty>
488 }
489
490 sub _included_supply_chain_trade_line_item {
491   my ($self, %params) = @_;
492
493   my $line_number = 0;
494   foreach my $item (@{ $self->items }) {
495     _line_item($self, %params, item => $item, line_number => $line_number);
496     $line_number++;
497   }
498 }
499
500 sub _applicable_header_trade_agreement {
501   my ($self, %params) = @_;
502
503   #     <ram:ApplicableHeaderTradeAgreement>
504   $params{xml}->startTag("ram:ApplicableHeaderTradeAgreement");
505
506   _seller_trade_party($self, %params);
507   _buyer_trade_party($self, %params);
508
509   if ($self->cusordnumber) {
510     #     <ram:BuyerOrderReferencedDocument>
511     $params{xml}->startTag("ram:BuyerOrderReferencedDocument");
512     $params{xml}->dataElement("ram:IssuerAssignedID", _u8($self->cusordnumber));
513     $params{xml}->endTag;
514     #     </ram:BuyerOrderReferencedDocument>
515   }
516
517   $params{xml}->endTag;
518   #     </ram:ApplicableHeaderTradeAgreement>
519 }
520
521 sub _applicable_header_trade_delivery {
522   my ($self, %params) = @_;
523
524   #     <ram:ApplicableHeaderTradeDelivery>
525   $params{xml}->startTag("ram:ApplicableHeaderTradeDelivery");
526   #       <ram:ActualDeliverySupplyChainEvent>
527   $params{xml}->startTag("ram:ActualDeliverySupplyChainEvent");
528
529   $params{xml}->startTag("ram:OccurrenceDateTime");
530   $params{xml}->dataElement("udt:DateTimeString", ($self->deliverydate // $self->transdate)->strftime('%Y%m%d'), format => "102");
531   $params{xml}->endTag;
532
533   $params{xml}->endTag;
534   #       </ram:ActualDeliverySupplyChainEvent>
535   $params{xml}->endTag;
536   #     </ram:ApplicableHeaderTradeDelivery>
537 }
538
539 sub _applicable_header_trade_settlement {
540   my ($self, %params) = @_;
541
542   #     <ram:ApplicableHeaderTradeSettlement>
543   $params{xml}->startTag("ram:ApplicableHeaderTradeSettlement");
544   $params{xml}->dataElement("ram:InvoiceCurrencyCode", _u8(SL::Helper::ISO4217::map_currency_name_to_code($self->currency->name) // 'EUR'));
545
546   _specified_trade_settlement_payment_means($self, %params);
547   _taxes($self, %params);
548   _payment_terms($self, %params);
549   _totals($self, %params);
550
551   $params{xml}->endTag;
552   #     </ram:ApplicableHeaderTradeSettlement>
553 }
554
555 sub _supply_chain_trade_transaction {
556   my ($self, %params) = @_;
557
558   #   <rsm:SupplyChainTradeTransaction>
559   $params{xml}->startTag("rsm:SupplyChainTradeTransaction");
560
561   _included_supply_chain_trade_line_item($self, %params);
562   _applicable_header_trade_agreement($self, %params);
563   _applicable_header_trade_delivery($self, %params);
564   _applicable_header_trade_settlement($self, %params);
565
566   $params{xml}->endTag;
567   #   </rsm:SupplyChainTradeTransaction>
568 }
569
570 sub _validate_data {
571   my ($self) = @_;
572
573   my %result;
574   my $prefix = $::locale->text('The ZUGFeRD invoice data cannot be generated because the data validation failed.') . ' ';
575
576   if (!$::instance_conf->get_co_ustid) {
577     SL::X::ZUGFeRDValidation->throw(message => $prefix . $::locale->text('The VAT registration number is missing in the client configuration.'));
578   }
579
580   if (!$::instance_conf->get_company || any { my $get = "get_address_$_"; !$::instance_conf->$get } qw(street1 zipcode city)) {
581     SL::X::ZUGFeRDValidation->throw(message => $prefix . $::locale->text('The company\'s address information is incomplete in the client configuration.'));
582   }
583
584   if ($::instance_conf->get_address_country && !SL::Helper::ISO3166::map_name_to_alpha_2_code($::instance_conf->get_address_country)) {
585     SL::X::ZUGFeRDValidation->throw(message => $prefix . $::locale->text('The country from the company\'s address in the client configuration cannot be mapped to an ISO 3166-1 alpha 2 code.'));
586   }
587
588   if ($self->customer->country && !SL::Helper::ISO3166::map_name_to_alpha_2_code($self->customer->country)) {
589     SL::X::ZUGFeRDValidation->throw(message => $prefix . $::locale->text('The country from the customer\'s address cannot be mapped to an ISO 3166-1 alpha 2 code.'));
590   }
591
592   if (!SL::Helper::ISO4217::map_currency_name_to_code($self->currency->name)) {
593     SL::X::ZUGFeRDValidation->throw(message => $prefix . $::locale->text('The currency "#1" cannot be mapped to an ISO 4217 currency code.', $self->currency->name));
594   }
595
596   my $failed_unit = first { !SL::Helper::UNECERecommendation20::map_name_to_code($_) } map { $_->unit } @{ $self->items };
597   if ($failed_unit) {
598     SL::X::ZUGFeRDValidation->throw(message => $prefix . $::locale->text('One of the units used (#1) cannot be mapped to a known unit code from the UN/ECE Recommendation 20 list.', $failed_unit));
599   }
600
601   if ($self->direct_debit) {
602     if (!$self->customer->iban) {
603       SL::X::ZUGFeRDValidation->throw(message => $prefix . $::locale->text('The customer\'s bank account number (IBAN) is missing.'));
604     }
605
606   } else {
607     my $bank_accounts     = SL::DB::Manager::BankAccount->get_all;
608     $result{bank_account} = scalar(@{ $bank_accounts }) == 1 ? $bank_accounts->[0] : first { $_->use_for_zugferd } @{ $bank_accounts };
609
610     if (!$result{bank_account}) {
611       SL::X::ZUGFeRDValidation->throw(message => $prefix . $::locale->text('No bank account flagged for ZUGFeRD usage was found.'));
612     }
613   }
614
615   return %result;
616 }
617
618 sub create_zugferd_data {
619   my ($self)        = @_;
620
621   my $output        = '';
622
623   my %params        = _validate_data($self);
624   $params{ptc_data} = { $self->calculate_prices_and_taxes };
625   $params{xml}      = XML::Writer->new(
626     OUTPUT          => \$output,
627     DATA_MODE       => 1,
628     DATA_INDENT     => 2,
629     ENCODING        => 'utf-8',
630   );
631
632   $params{xml}->xmlDecl();
633
634   # <rsm:CrossIndustryInvoice>
635   $params{xml}->startTag("rsm:CrossIndustryInvoice",
636                          "xmlns:a"   => "urn:un:unece:uncefact:data:standard:QualifiedDataType:100",
637                          "xmlns:rsm" => "urn:un:unece:uncefact:data:standard:CrossIndustryInvoice:100",
638                          "xmlns:qdt" => "urn:un:unece:uncefact:data:standard:QualifiedDataType:10",
639                          "xmlns:ram" => "urn:un:unece:uncefact:data:standard:ReusableAggregateBusinessInformationEntity:100",
640                          "xmlns:xs"  => "http://www.w3.org/2001/XMLSchema",
641                          "xmlns:udt" => "urn:un:unece:uncefact:data:standard:UnqualifiedDataType:100");
642
643   _exchanged_document_context($self, %params);
644   _exchanged_document($self, %params);
645   _supply_chain_trade_transaction($self, %params);
646
647   $params{xml}->endTag;
648   # </rsm:CrossIndustryInvoice>
649
650   return $output;
651 }
652
653 sub create_zugferd_xmp_data {
654   my ($self) = @_;
655
656   return {
657     conformance_level  => 'EXTENDED',
658     document_file_name => 'ZUGFeRD-invoice.xml',
659     document_type      => 'INVOICE',
660     version            => '1.0',
661   };
662 }
663
664 1;