From 747f1fb7331355e88861db58ef4b611858bbff9a Mon Sep 17 00:00:00 2001
From: Denny Avila <denny_avila@tuta.io>
Date: Tue, 30 May 2023 12:56:45 -0700
Subject: [PATCH] Refactored the DeniabilityDialog to use the new
 wallet::calculateDeniabilizaitonCycles API.

---
 src/qt/deniabilitydialog.cpp | 81 +-----------------------------------
 src/qt/deniabilitydialog.h   |  1 -
 2 files changed, 2 insertions(+), 80 deletions(-)

diff --git a/src/qt/deniabilitydialog.cpp b/src/qt/deniabilitydialog.cpp
index 955d5e53a59..82851f9df23 100644
--- a/src/qt/deniabilitydialog.cpp
+++ b/src/qt/deniabilitydialog.cpp
@@ -1024,84 +1024,6 @@ void DeniabilityDialog::setModel(WalletModel* model)
     }
 }
 
-DeniabilityDialog::DeniabilizationStats DeniabilityDialog::calculateDeniabilizationStats(const COutPoint& outpoint) const
-{
-    Assert(m_model);
-
-    Wallet& wallet = m_model->wallet();
-
-    auto tx = wallet.getTx(outpoint.hash);
-    if (!tx) {
-        return DeniabilizationStats(0, false);
-    }
-
-    if (tx->IsCoinBase()) {
-        // this is a block reward tx, so we tag it as such
-        return DeniabilizationStats(0, true);
-    }
-
-    // an deniabilized coin is one we sent to ourselves
-    // all txIn should belong to our wallet
-    if (tx->vin.empty()) {
-        return DeniabilizationStats(0, false);
-    }
-    for (const auto& txIn : tx->vin) {
-        if (!wallet.txinIsMine(txIn)) {
-            return DeniabilizationStats(0, false);
-        }
-    }
-
-    // all txOut should belong to our wallet
-    Assert(outpoint.n < tx->vout.size());
-    uint n = 0;
-    for (const auto& txOut : tx->vout) {
-        if (!wallet.txoutIsMine(txOut)) {
-            Assert(n != outpoint.n);
-            return DeniabilizationStats(0, false);
-        }
-        n++;
-    }
-
-    uint uniqueTxOutCount = 0;
-    for (const auto& txOut : tx->vout) {
-        // check if it's a valid destination
-        CTxDestination txOutDestination;
-        if (!ExtractDestination(txOut.scriptPubKey, txOutDestination)) {
-            continue;
-        }
-
-        // don't count outputs that match any input addresses (eg it's change output)
-        bool matchesInput = false;
-        for (const auto& txIn : tx->vin) {
-            auto prevTx = wallet.getTx(txIn.prevout.hash);
-            if (prevTx && prevTx->vout[txIn.prevout.n].scriptPubKey == txOut.scriptPubKey) {
-                matchesInput = true;
-                break;
-            }
-        }
-        if (matchesInput) {
-            continue;
-        }
-
-        uniqueTxOutCount++;
-    }
-
-    // we consider two or more unique outputs an "deniabilization" of the coin
-    uint deniabilizationCycles = uniqueTxOutCount >= 2 ? 1 : 0;
-
-    // all txIn and txOut are from our wallet
-    // however if we have multiple txIn this was either an initial deniabilization of multiple UTXOs or the user manually merged deniabilized UTXOs
-    // in either case we don't need to recurse into parent transactions and we can return the calculated cycles
-    if (tx->vin.size() > 1) {
-        return DeniabilizationStats(deniabilizationCycles, false);
-    }
-
-    const auto& txIn = tx->vin[0];
-    // now recursively calculate the deniabilization cycles of the input
-    DeniabilizationStats inputStats = calculateDeniabilizationStats(txIn.prevout);
-    return DeniabilizationStats(inputStats.cycles + deniabilizationCycles, inputStats.blockReward);
-};
-
 void DeniabilityDialog::updateCoins()
 {
     if (!m_model) {
@@ -1179,7 +1101,8 @@ void DeniabilityDialog::updateCoins()
             // skip spent outputs
             if (output.walletTxOut.is_spent)
                 continue;
-            output.deniabilizationStats = calculateDeniabilizationStats(output.outpoint);
+            auto result = wallet.calculateDeniabilizationCycles(output.outpoint);
+            output.deniabilizationStats = DeniabilizationStats(result.first, result.second);
             coin.utxos.push_back(std::move(output));
         }
         // skip any addresses with no unspent outputs
diff --git a/src/qt/deniabilitydialog.h b/src/qt/deniabilitydialog.h
index 0d3bbe721cc..4a101f84e12 100644
--- a/src/qt/deniabilitydialog.h
+++ b/src/qt/deniabilitydialog.h
@@ -164,7 +164,6 @@ public Q_SLOTS:
     void updateStart();
     void updateStatus();
     void updateCoinTable();
-    DeniabilizationStats calculateDeniabilizationStats(const COutPoint& outpoint) const;
 
     bool signExternalSigner(interfaces::Wallet& wallet, CTransactionRef& tx, const QString& message);
     void finalizeTxBroadcast(uint256 hash, CAmount txFee);