backend/src/main/java/de/szut/casino/slots/SlotService.java

@@ -42,31 +42,36 @@ public class SlotService {
         Symbol symbol2 = getSymbolAt(this.secondReel, index2);
         Symbol symbol3 = getSymbolAt(this.thirdReel, index3);
 
-        boolean isWin = symbol1.equals(symbol2) && symbol1.equals(symbol3);
+        Status status = determineStatus(symbol1, symbol2, symbol3);
 
-        SpinResult spinResult = processResult(betAmount, user, isWin, symbol1);
+        SpinResult spinResult = processResult(betAmount, user, status, symbol1);
         buildResultMatrix(spinResult, index1, index2, index3);
 
         return spinResult;
     }
 
-    private SpinResult processResult(BigDecimal betAmount, UserEntity user, boolean isWin, Symbol winSymbol) {
-        BigDecimal resultAmount;
-        String status;
-
-        if (isWin) {
-            resultAmount = betAmount.multiply(winSymbol.getPayoutMultiplier());
-            status = "win";
-            this.balanceService.addFunds(user, resultAmount);
-        } else {
-            resultAmount = betAmount;
-            status = "lose";
-            this.balanceService.subtractFunds(user, betAmount);
-        }
-
+    private SpinResult processResult(BigDecimal betAmount, UserEntity user, Status status, Symbol winSymbol) {
         SpinResult spinResult = new SpinResult();
-        spinResult.setStatus(status);
-        spinResult.setAmount(resultAmount);
+
+        switch (status) {
+            case WIN:
+                BigDecimal winAmount = betAmount.multiply(winSymbol.getPayoutMultiplier());
+                this.balanceService.addFunds(user, winAmount);
+                spinResult.setAmount(winAmount);
+                spinResult.setStatus(Status.WIN.name().toLowerCase());
+                break;
+
+            case BLANK:
+                spinResult.setAmount(BigDecimal.ZERO);
+                spinResult.setStatus(Status.BLANK.name().toLowerCase());
+                break;
+
+            case LOSE:
+                this.balanceService.subtractFunds(user, betAmount);
+                spinResult.setAmount(betAmount);
+                spinResult.setStatus(Status.LOSE.name().toLowerCase());
+                break;
+        }
 
         return spinResult;
     }
@@ -124,4 +129,18 @@ public class SlotService {
 
         return reel.get(effectiveIndex);
     }
+
+    private Status determineStatus(Symbol symbol1, Symbol symbol2, Symbol symbol3) {
+        boolean allSymbolsMatch = symbol1.equals(symbol2) && symbol1.equals(symbol3);
+
+        if (allSymbolsMatch) {
+            if (symbol1 == Symbol.BLANK) {
+                return Status.BLANK;
+            } else {
+                return Status.WIN;
+            }
+        }
+
+        return Status.LOSE;
+    }
 }

backend/src/main/java/de/szut/casino/slots/Status.java

@@ -0,0 +1,7 @@
+package de.szut.casino.slots;
+
+public enum Status {
+    WIN,
+    LOSE,
+    BLANK
+}