Moved bank transfer logic to special module

app/EventPaymentModules/Modules/AccountTransferPaymentModule.php

@@ -4,12 +4,17 @@ namespace App\EventPaymentModules\Modules;
 
 use App\EventPaymentModules\AbstractEventPaymentModule;
 use App\EventPaymentModules\DTO\CreateInvoiceRequest;
+use App\EventPaymentModules\DTO\RegistrationSummaryRequest;
+use App\EventPaymentModules\DTO\RegistrationSummaryResponse;
+use App\EventPaymentModules\ProvidesGiroCode;
+use App\Models\EventParticipant;
 use App\Models\PaymentMethod;
+use App\Providers\GiroCodeProvider;
 
 /**
  * Überweisung auf das Veranstaltungskonto -- die Zahlung erfolgt manuell durch die teilnehmende Person.
  */
-class AccountTransferPaymentModule extends AbstractEventPaymentModule
+class AccountTransferPaymentModule extends AbstractEventPaymentModule implements ProvidesGiroCode
 {
     public static function slug(): string
     {
@@ -30,6 +35,50 @@ class AccountTransferPaymentModule extends AbstractEventPaymentModule
         ];
     }
 
+    public function registrationSummary(RegistrationSummaryRequest $request): RegistrationSummaryResponse
+    {
+        $participant = $request->participant;
+        $config = $request->configuration;
+
+        $amountLeft = clone $participant->amount;
+        if ($participant->amount_paid !== null) {
+            $amountLeft->subtractAmount($participant->amount_paid);
+        }
+
+        $response = new RegistrationSummaryResponse();
+        $response->hasPaymentInformation = $amountLeft->getAmount() > 0;
+        $response->showGiroCode = $response->hasPaymentInformation;
+        $response->lines = [
+            ['label' => 'Kontoinhaber', 'value' => (string)($config['account_owner'] ?? '')],
+            ['label' => 'IBAN', 'value' => (string)($config['iban'] ?? '')],
+            ['label' => 'Verwendungszweck', 'value' => (string)$participant->payment_purpose],
+            ['label' => 'Betrag', 'value' => $amountLeft->toString()],
+        ];
+
+        return $response;
+    }
+
+    public function giroCode(EventParticipant $participant, array $configuration): ?string
+    {
+        $amountLeft = clone $participant->amount;
+        if ($participant->amount_paid !== null) {
+            $amountLeft->subtractAmount($participant->amount_paid);
+        }
+
+        if ($amountLeft->getAmount() <= 0) {
+            return null;
+        }
+
+        $provider = new GiroCodeProvider(
+            (string)($configuration['account_owner'] ?? ''),
+            (string)($configuration['iban'] ?? ''),
+            $amountLeft->getAmount(),
+            (string)$participant->payment_purpose,
+        );
+
+        return (string)$provider->create();
+    }
+
     protected function invoiceClosingStatement(CreateInvoiceRequest $request): string
     {
         // TODO: In einer Folge-Iteration ausformulieren (z.B. "Bitte überweise bis zum ... auf IBAN ...").