From e4b63fbd19e9df6daf749bae02c5e02523c64ce4 Mon Sep 17 00:00:00 2001
From: Craig Raw <craigraw@gmail.com>
Date: Thu, 14 May 2026 12:39:20 +0200
Subject: [PATCH] add needed scan start helper

---
 .../com/sparrowwallet/drongo/wallet/Wallet.java    | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/main/java/com/sparrowwallet/drongo/wallet/Wallet.java b/src/main/java/com/sparrowwallet/drongo/wallet/Wallet.java
index 3156033..ccd8bb9 100644
--- a/src/main/java/com/sparrowwallet/drongo/wallet/Wallet.java
+++ b/src/main/java/com/sparrowwallet/drongo/wallet/Wallet.java
@@ -601,6 +601,20 @@ public class Wallet extends Persistable implements Comparable<Wallet> {
         this.birthHeight = birthHeight;
     }
 
+    public int getNeededScanStart() {
+        if(storedBlockHeight != null && storedBlockHeight > 0) {
+            return Math.max(0, storedBlockHeight - BlockTransactionHash.BLOCKS_TO_FULLY_CONFIRM);
+        }
+        if(birthHeight != null) {
+            return Math.max(0, birthHeight - BlockTransactionHash.BLOCKS_TO_FULLY_CONFIRM);
+        }
+        if(birthDate != null) {
+            return (int)(birthDate.getTime() / 1000L);
+        }
+
+        return 0;
+    }
+
     public boolean isMasterWallet() {
         return masterWallet == null;
     }