wallet: Add GetClosestWalletFeature function

Given a version number, get the closest supported WalletFeature
for a version number.

1 files changed, 13 insertions, 0 deletions

diff --git a/src/wallet/walletutil.cpp b/src/wallet/walletutil.cpp
index 9ac90a21ca..0b7cf692ba 100644
--- a/src/wallet/walletutil.cpp
+++ b/src/wallet/walletutil.cpp
@@ -75,3 +75,16 @@ bool IsFeatureSupported(int wallet_version, int feature_version)
 {
     return wallet_version >= feature_version;
 }
+
+WalletFeature GetClosestWalletFeature(int version)
+{
+    if (version >= FEATURE_LATEST) return FEATURE_LATEST;
+    if (version >= FEATURE_PRE_SPLIT_KEYPOOL) return FEATURE_PRE_SPLIT_KEYPOOL;
+    if (version >= FEATURE_NO_DEFAULT_KEY) return FEATURE_NO_DEFAULT_KEY;
+    if (version >= FEATURE_HD_SPLIT) return FEATURE_HD_SPLIT;
+    if (version >= FEATURE_HD) return FEATURE_HD;
+    if (version >= FEATURE_COMPRPUBKEY) return FEATURE_COMPRPUBKEY;
+    if (version >= FEATURE_WALLETCRYPT) return FEATURE_WALLETCRYPT;
+    if (version >= FEATURE_BASE) return FEATURE_BASE;
+    return static_cast<WalletFeature>(0);
+}