Add payout change amount

pom.xml

@@ -94,6 +94,7 @@
         <dependency>
             <groupId>dev.vality</groupId>
             <artifactId>damsel</artifactId>
+            <version>1.699-7280b62</version>
         </dependency>
         <dependency>
             <groupId>dev.vality</groupId>

src/main/java/dev/vality/proxy/mocketbank/handler/oct/OctServerHandler.java

@@ -31,6 +31,8 @@
 @RequiredArgsConstructor
 public class OctServerHandler implements AdapterSrv.Iface {
 
+    private static final int AMOUNT_CHANGE_DIVISOR = 2;
+
     private final CdsService cdsService;
     private final ErrorMapping errorMapping;
     private final List<CardPayout> cardPayoutList;
@@ -48,6 +50,12 @@ public ProcessResult processWithdrawal(
             Optional<CardPayout> cardPayout = PayoutUtils.extractCardPayoutByPan(cardPayoutList, cardData.getPan());
             if (cardPayout.isPresent()) {
                 log.info("Found card payout with action {}", cardPayout.get().getAction());
+                if (CardPayoutAction.isAmountChanged(cardPayout.get())) {
+                    return createSuccessResult(withdrawal).setNewBody(
+                            new Cash(withdrawal.getBody())
+                                    .setAmount(withdrawal.getBody().getAmount() / AMOUNT_CHANGE_DIVISOR)
+                    );
+                }
                 if (CardPayoutAction.isCardFailed(cardPayout.get())) {
                     CardPayoutAction action = CardPayoutAction.findByValue(cardPayout.get().getAction());
                     log.info("Failed card payout with action {}", action);
@@ -56,10 +64,7 @@ public ProcessResult processWithdrawal(
             }
         }
 
-        TransactionInfo transactionInfo =
-                DomainPackageCreators.createTransactionInfo(withdrawal.getId(), Collections.emptyMap());
-        Intent intent = WithdrawalsProviderAdapterPackageCreators.createFinishIntentSuccess(transactionInfo);
-        return WithdrawalsProviderAdapterPackageCreators.createProcessResult(intent);
+        return createSuccessResult(withdrawal);
     }
 
     @Override
@@ -102,4 +107,11 @@ private static String getCurrentDateTimeByPattern(Long timestamp) {
         return Instant.ofEpochMilli(timestamp).toString();
     }
 
+    private static ProcessResult createSuccessResult(Withdrawal withdrawal) {
+        TransactionInfo transactionInfo =
+                DomainPackageCreators.createTransactionInfo(withdrawal.getId(), Collections.emptyMap());
+        Intent intent = WithdrawalsProviderAdapterPackageCreators.createFinishIntentSuccess(transactionInfo);
+        return WithdrawalsProviderAdapterPackageCreators.createProcessResult(intent);
+    }
+
 }

src/main/java/dev/vality/proxy/mocketbank/utils/payout/CardPayoutAction.java

@@ -13,7 +13,8 @@ public enum CardPayoutAction {
     INSUFFICIENT_FUNDS("Insufficient Funds"),
     INVALID_CARD("Invalid Card"),
     EXPIRED_CARD("Expired Card"),
-    UNKNOWN_FAILURE("Unknown Failure");
+    UNKNOWN_FAILURE("Unknown Failure"),
+    CHANGE_AMOUNT("Change Amount");
 
     private static final CardPayoutAction[] FAILED_CARDS = {
             INSUFFICIENT_FUNDS,
@@ -39,4 +40,8 @@ public static boolean isCardFailed(CardPayoutAction action) {
         return Arrays.asList(FAILED_CARDS).contains(action);
     }
 
+    public static boolean isAmountChanged(CardPayout card) {
+        return CHANGE_AMOUNT == findByValue(card.getAction());
+    }
+
 }

src/main/resources/fixture/payout.csv

@@ -7,3 +7,4 @@ cardPan, action, paymentSystem
 5105105105105100, Expired Card, MasterCard
 4111110000000112, Unknown Failure, Visa
 5124990000000002, Unknown Failure, MasterCard
+4000000000000077, Change Amount, Visa

src/test/java/dev/vality/proxy/mocketbank/handler/oct/OctServerHandlerTest.java

@@ -12,9 +12,10 @@
 import org.springframework.test.context.bean.override.mockito.MockitoBean;
 
 import static dev.vality.adapter.common.damsel.WithdrawalsProviderVerification.isSuccess;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.when;
-import static org.springframework.test.util.AssertionErrors.assertTrue;
 
 @Slf4j
 @SpringBootTest
@@ -41,7 +42,31 @@ void testProcessWithdrawal() throws Exception {
                 createProxyOptions()
         );
         log.info("Response processWithdrawal {}", result);
-        assertTrue("Result processWithdrawal isn`t success", isSuccess(result));
+        assertTrue(isSuccess(result), "Result processWithdrawal isn`t success");
+    }
+
+    @Test
+    void testProcessWithdrawalWithChangedAmount() throws Exception {
+        CardData cardData = new CardData()
+                .setPan("4000000000000077")
+                .setCardholderName(randomString());
+        BankCard bankCard = new BankCard()
+                .setToken(randomString())
+                .setCardholderName(randomString())
+                .setBin(randomString());
+        when(cdsStorageClient.getCardData(anyString())).thenReturn(cardData);
+
+        var withdrawal = createWithdrawal(bankCard);
+        ProcessResult result = handler.processWithdrawal(
+                withdrawal,
+                Value.str(""),
+                createProxyOptions()
+        );
+
+        assertTrue(isSuccess(result), "Result processWithdrawal isn`t success");
+        assertTrue(result.isSetNewBody(), "Result processWithdrawal doesn`t contain new body");
+        assertEquals(withdrawal.getBody().getAmount() / 2, result.getNewBody().getAmount());
+        assertEquals(withdrawal.getBody().getCurrency(), result.getNewBody().getCurrency());
     }
 
 }