From b1a3dc6411bb3d30a82de8729c4ff4a27fea3e60 Mon Sep 17 00:00:00 2001
From: QcMrHyde <hc1800@hotmail.com>
Date: Thu, 29 May 2025 01:29:20 -0400
Subject: [PATCH] - Added code findings about PSBT & SigHash

---
 .../sparrow/joinstr/JoinstrPool.java          | 97 ++++++++++++++++++-
 1 file changed, 92 insertions(+), 5 deletions(-)

diff --git a/src/main/java/com/sparrowwallet/sparrow/joinstr/JoinstrPool.java b/src/main/java/com/sparrowwallet/sparrow/joinstr/JoinstrPool.java
index ca1515d3..40eb6ddd 100644
--- a/src/main/java/com/sparrowwallet/sparrow/joinstr/JoinstrPool.java
+++ b/src/main/java/com/sparrowwallet/sparrow/joinstr/JoinstrPool.java
@@ -1,18 +1,30 @@
 package com.sparrowwallet.sparrow.joinstr;
 
+import com.sparrowwallet.drongo.KeyPurpose;
+import com.sparrowwallet.drongo.address.Address;
+import com.sparrowwallet.drongo.psbt.PSBT;
+import com.sparrowwallet.sparrow.control.QRScanDialog;
+import com.sparrowwallet.sparrow.net.Tor;
+import com.sparrowwallet.sparrow.wallet.NodeEntry;
+import com.sparrowwallet.sparrow.wallet.WalletForm;
+
+import java.util.Optional;
+
 public class JoinstrPool {
 
     private final String relay;
     private final Integer port;
     private final String pubkey;
     private final Double denomination;
+    private final WalletForm walletForm;    // [FormController].getWalletForm()
 
-    public JoinstrPool(String relay_, Integer port_, String pubkey_, Double denomination_) {
+    public JoinstrPool(WalletForm walletForm,String relay, Integer port, String pubkey, Double denomination) {
 
-        relay = relay_;
-        port = port_;
-        pubkey = pubkey_;
-        denomination = denomination_;
+        this.walletForm = walletForm;
+        this.relay = relay;
+        this.port = port;
+        this.pubkey = pubkey;
+        this.denomination = denomination;
 
     }
 
@@ -32,4 +44,79 @@ public class JoinstrPool {
         return denomination;
     }
 
+    public void getNewTorRoute() {
+
+        Tor tor = Tor.getDefault();
+        tor.changeIdentity();
+
+    }
+
+    private Address getNewSendAddress() {
+        NodeEntry freshNodeEntry = walletForm.getFreshNodeEntry(KeyPurpose.SEND, null);
+        return freshNodeEntry.getAddress();
+    }
+
+    public void createPSBT() {
+
+        Address sendAddress =  getNewSendAddress();
+        PSBT psbt;
+
+        /* String to byte[]
+
+            if(Utils.isBase64(string) && !Utils.isHex(string)) {
+                addTransactionTab(name, file, Base64.getDecoder().decode(string));
+            } else if(Utils.isHex(string)) {
+                addTransactionTab(name, file, Utils.hexToBytes(string));
+            } else {
+                throw new ParseException("Input is not base64 or hex", 0);
+            }
+
+        */
+
+        /* PSBT from byte[]
+
+            if(PSBT.isPSBT(bytes)) {
+                //Don't verify signatures here - provided PSBT may omit UTXO data that can be found when combining with an existing PSBT
+                PSBT psbt = new PSBT(bytes, false);
+            } else {
+                throw new ParseException("Not a valid PSBT or transaction", 0);
+            }
+
+        */
+
+        /* PSBT from QR Code
+
+             QRScanDialog qrScanDialog = new QRScanDialog();
+             qrScanDialog.initOwner(rootStack.getScene().getWindow());
+             Optional<QRScanDialog.Result> optionalResult = qrScanDialog.showAndWait();
+             QRScanDialog.Result result = optionalResult.get();
+             result.psbt;
+        */
+
+        /* PSBT from TransactionData
+            TransactionData txdata;
+        /// TODO fill txdata
+            psbt = txdata.getPsbt();
+         */
+
+        /* PSBT from Transaction
+
+            Transaction toSign;
+            /// TODO fill toSign
+
+            PSBT psbt = new PSBT(toSign);
+            PSBTInput psbtInput = psbt.getPsbtInputs().get(0);
+
+            Transaction toSpend;
+            /// TODO fill toSpend
+            TransactionOutput utxoOutput = toSpend.getOutputs().get(0);
+            psbtInput.setWitnessUtxo(utxoOutput);
+
+            psbtInput.setSigHash(SigHash.ALL);
+            psbtInput.sign(scriptType.getOutputKey(privKey));
+
+         */
+
+    }
+
 }