From 42d5d5336319aaf0f07345037db78239d9e012fc Mon Sep 17 00:00:00 2001
From: Fabian Jahr <fjahr@protonmail.com>
Date: Mon, 30 Sep 2024 01:42:47 +0200
Subject: [PATCH] interfaces: Add helper function for wallet on pruning

---
 src/interfaces/chain.h  | 3 +++
 src/node/interfaces.cpp | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/src/interfaces/chain.h b/src/interfaces/chain.h
index 4e858d1f898..c9ef46243c4 100644
--- a/src/interfaces/chain.h
+++ b/src/interfaces/chain.h
@@ -289,6 +289,9 @@ public:
     //! Check if any block has been pruned.
     virtual bool havePruned() = 0;
 
+    //! Get the current prune height.
+    virtual std::optional<int> getPruneHeight() = 0;
+
     //! Check if the node is ready to broadcast transactions.
     virtual bool isReadyToBroadcast() = 0;
 
diff --git a/src/node/interfaces.cpp b/src/node/interfaces.cpp
index f3b8c6a072f..15140b942f6 100644
--- a/src/node/interfaces.cpp
+++ b/src/node/interfaces.cpp
@@ -46,6 +46,7 @@
 #include <policy/settings.h>
 #include <primitives/block.h>
 #include <primitives/transaction.h>
+#include <rpc/blockchain.h>
 #include <rpc/protocol.h>
 #include <rpc/server.h>
 #include <support/allocators/secure.h>
@@ -770,6 +771,11 @@ public:
         LOCK(::cs_main);
         return chainman().m_blockman.m_have_pruned;
     }
+    std::optional<int> getPruneHeight() override
+    {
+        LOCK(chainman().GetMutex());
+        return GetPruneHeight(chainman().m_blockman, chainman().ActiveChain());
+    }
     bool isReadyToBroadcast() override { return !chainman().m_blockman.LoadingBlocks() && !isInitialBlockDownload(); }
     bool isInitialBlockDownload() override
     {