13: Add decoder for IDL and delegate from service

src/main/tjava/com/r35157/libs/jupiter/perps/impl/anchoridl/AnchorIdlJupiterPerpsPositionDecoder.tjava

@@ -0,0 +1,16 @@
+package com.r35157.libs.jupiter.perps.impl.anchoridl;
+
+import com.r35157.libs.jupiter.perps.JupiterPerpsPosition;
+import com.r35157.libs.solana.SolanaAccountInfo;
+
+class AnchorIdlJupiterPerpsPositionDecoder {
+
+    JupiterPerpsPosition decode(
+            ΩJupiterPerpsPositionAccountΩ positionAccount,
+            SolanaAccountInfo accountInfo
+    ) {
+        throw new UnsupportedOperationException(
+                "Jupiter Perps position decoding is not implemented yet."
+        );
+    }
+}

src/main/tjava/com/r35157/libs/jupiter/perps/impl/anchoridl/AnchorIdlJupiterPerpsPositionServiceImpl.tjava

@@ -10,28 +10,25 @@ import java.io.IOException;
 public class AnchorIdlJupiterPerpsPositionServiceImpl implements JupiterPerpsPositionService {
 
     private final SolanaBlockChain solanaBlockChain;
+    private final AnchorIdlJupiterPerpsPositionDecoder positionDecoder;
 
     public AnchorIdlJupiterPerpsPositionServiceImpl(
             SolanaBlockChain solanaBlockChain
     ) {
         this.solanaBlockChain = solanaBlockChain;
+        this.positionDecoder = new AnchorIdlJupiterPerpsPositionDecoder();
     }
 
     @Override
-    public JupiterPerpsPosition getPosition(
-            ΩJupiterPerpsPositionAccountΩ positionAccount
-    ) throws IOException, InterruptedException {
-        SolanaAccountInfo accountInfo =
-                solanaBlockChain.getAccountInfo(positionAccount);
+    public JupiterPerpsPosition getPosition(ΩJupiterPerpsPositionAccountΩ positionAccount)
+            throws IOException, InterruptedException {
+        SolanaAccountInfo accountInfo = solanaBlockChain.getAccountInfo(positionAccount);
 
         if (accountInfo == null) {
-            throw new IllegalArgumentException(
-                    "Jupiter Perps position account does not exist: " + positionAccount
-            );
+            throw new IllegalArgumentException("Jupiter Perps position account does not exist: " + positionAccount);
         }
 
-        throw new UnsupportedOperationException(
-                "Jupiter Perps position account decoding is not implemented yet."
-        );
+        JupiterPerpsPosition pos = positionDecoder.decode(positionAccount, accountInfo);
+        return pos;
     }
 }