chore: move payment status event handling to PaymentStatusService

Author: otaviojava

src/main/java/com/acme/payment/PaymentService.java

@@ -7,7 +7,6 @@
 import jakarta.data.page.PageRequest;
 import jakarta.enterprise.context.ApplicationScoped;
 import jakarta.enterprise.event.Event;
-import jakarta.enterprise.event.Observes;
 import jakarta.inject.Inject;
 
 import java.math.BigDecimal;
@@ -49,20 +48,6 @@ public Payment create(PaymentRequest request) {
         return payment;
     }
 
-    void payed(@Observes PaymentSuccessEvent event) {
-        LOGGER.info("Payment " + event.payment() + " was payed");
-        Payment payment = repository.findById(event.payment().getId()).orElseThrow();
-        payment.confirmed();
-        repository.save(payment);
-    }
-
-    void errorOnPayment(@Observes PaymentErrorEvent event) {
-        LOGGER.info("Payment " + event.payment() + " failed");
-        Payment payment = repository.findById(event.payment().getId()).orElseThrow();
-        payment.failed();
-        repository.save(payment);
-    }
-
     public List<Payment> findAll(PageRequest pageRequest) {
         LOGGER.info("Finding all payments, page: " + pageRequest.page());
         Page<Payment> payments = repository.findAll(pageRequest, PAYMENT_ORDER);

src/main/java/com/acme/payment/PaymentStatusService.java

@@ -0,0 +1,38 @@
+package com.acme.payment;
+
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.enterprise.event.Observes;
+import jakarta.inject.Inject;
+
+import java.util.logging.Logger;
+
+@ApplicationScoped
+class PaymentStatusService {
+
+    private static final Logger LOGGER = Logger.getLogger(PaymentStatusService.class.getName());
+
+    private final PaymentRepository repository;
+
+    @Inject
+    PaymentStatusService(PaymentRepository repository) {
+        this.repository = repository;
+    }
+
+    PaymentStatusService() {
+        this.repository = null;
+    }
+
+    void payed(@Observes PaymentSuccessEvent event) {
+        LOGGER.info("Payment " + event.payment() + " was payed");
+        var payment = repository.findById(event.payment().getId()).orElseThrow();
+        payment.confirmed();
+        repository.save(payment);
+    }
+
+    void errorOnPayment(@Observes PaymentErrorEvent event) {
+        LOGGER.info("Payment " + event.payment() + " failed");
+        var payment = repository.findById(event.payment().getId()).orElseThrow();
+        payment.failed();
+        repository.save(payment);
+    }
+}