Remove direct bitcoin calls from qt/coincontroldialog.cpp

7 files changed, 140 insertions, 70 deletions

diff --git a/src/interface/node.cpp b/src/interface/node.cpp
index db03cc0627..1bd7e48b05 100644
--- a/src/interface/node.cpp
+++ b/src/interface/node.cpp
@@ -15,6 +15,9 @@
 #include <net_processing.h>
 #include <netaddress.h>
 #include <netbase.h>
+#include <policy/feerate.h>
+#include <policy/fees.h>
+#include <policy/policy.h>
 #include <primitives/block.h>
 #include <rpc/server.h>
 #include <scheduler.h>
@@ -29,6 +32,7 @@
 #include <config/bitcoin-config.h>
 #endif
 #ifdef ENABLE_WALLET
+#include <wallet/fees.h>
 #include <wallet/wallet.h>
 #define CHECK_WALLET(x) x
 #else
@@ -186,7 +190,31 @@ class NodeImpl : public Node
     }
     bool getNetworkActive() override { return g_connman && g_connman->GetNetworkActive(); }
     unsigned int getTxConfirmTarget() override { CHECK_WALLET(return ::nTxConfirmTarget); }
+    CAmount getRequiredFee(unsigned int tx_bytes) override { CHECK_WALLET(return GetRequiredFee(tx_bytes)); }
+    CAmount getMinimumFee(unsigned int tx_bytes,
+        const CCoinControl& coin_control,
+        int* returned_target,
+        FeeReason* reason) override
+    {
+        FeeCalculation fee_calc;
+        CAmount result;
+        CHECK_WALLET(result = GetMinimumFee(tx_bytes, coin_control, ::mempool, ::feeEstimator, &fee_calc));
+        if (returned_target) *returned_target = fee_calc.returnedTarget;
+        if (reason) *reason = fee_calc.reason;
+        return result;
+    }
     CAmount getMaxTxFee() override { return ::maxTxFee; }
+    CFeeRate estimateSmartFee(int num_blocks, bool conservative, int* returned_target = nullptr) override
+    {
+        FeeCalculation fee_calc;
+        CFeeRate result = ::feeEstimator.estimateSmartFee(num_blocks, &fee_calc, conservative);
+        if (returned_target) {
+            *returned_target = fee_calc.returnedTarget;
+        }
+        return result;
+    }
+    CFeeRate getDustRelayFee() override { return ::dustRelayFee; }
+    CFeeRate getPayTxFee() override { CHECK_WALLET(return ::payTxFee); }
     UniValue executeRpc(const std::string& command, const UniValue& params, const std::string& uri) override
     {
         JSONRPCRequest req;
diff --git a/src/interface/node.h b/src/interface/node.h
index b0d435695e..606d1238e0 100644
--- a/src/interface/node.h
+++ b/src/interface/node.h
@@ -19,10 +19,13 @@
 #include <tuple>
 #include <vector>
 
+class CCoinControl;
+class CFeeRate;
 class CNodeStats;
 class RPCTimerInterface;
 class UniValue;
 class proxyType;
+enum class FeeReason;
 struct CNodeStateStats;
 
 namespace interface {
@@ -145,9 +148,27 @@ public:
     //! Get tx confirm target.
     virtual unsigned int getTxConfirmTarget() = 0;
 
+    //! Get required fee.
+    virtual CAmount getRequiredFee(unsigned int tx_bytes) = 0;
+
+    //! Get minimum fee.
+    virtual CAmount getMinimumFee(unsigned int tx_bytes,
+        const CCoinControl& coin_control,
+        int* returned_target,
+        FeeReason* reason) = 0;
+
     //! Get max tx fee.
     virtual CAmount getMaxTxFee() = 0;
 
+    //! Estimate smart fee.
+    virtual CFeeRate estimateSmartFee(int num_blocks, bool conservative, int* returned_target = nullptr) = 0;
+
+    //! Get dust relay fee.
+    virtual CFeeRate getDustRelayFee() = 0;
+
+    //! Get pay tx fee.
+    virtual CFeeRate getPayTxFee() = 0;
+
     //! Execute rpc command.
     virtual UniValue executeRpc(const std::string& command, const UniValue& params, const std::string& uri) = 0;
 
diff --git a/src/interface/wallet.cpp b/src/interface/wallet.cpp
index 8dae7ac547..cbf30f49bc 100644
--- a/src/interface/wallet.cpp
+++ b/src/interface/wallet.cpp
@@ -54,6 +54,17 @@ public:
     CReserveKey m_key;
 };
 
+//! Construct wallet TxOut struct.
+WalletTxOut MakeWalletTxOut(CWallet& wallet, const CWalletTx& wtx, int n, int depth)
+{
+    WalletTxOut result;
+    result.txout = wtx.tx->vout[n];
+    result.time = wtx.GetTxTime();
+    result.depth_in_main_chain = depth;
+    result.is_spent = wallet.IsSpent(wtx.GetHash(), n);
+    return result;
+}
+
 class WalletImpl : public Wallet
 {
 public:
@@ -207,6 +218,36 @@ public:
     {
         return m_wallet.GetAvailableBalance(&coin_control);
     }
+    CoinsList listCoins() override
+    {
+        LOCK2(::cs_main, m_wallet.cs_wallet);
+        CoinsList result;
+        for (const auto& entry : m_wallet.ListCoins()) {
+            auto& group = result[entry.first];
+            for (const auto& coin : entry.second) {
+                group.emplace_back(
+                    COutPoint(coin.tx->GetHash(), coin.i), MakeWalletTxOut(m_wallet, *coin.tx, coin.i, coin.nDepth));
+            }
+        }
+        return result;
+    }
+    std::vector<WalletTxOut> getCoins(const std::vector<COutPoint>& outputs) override
+    {
+        LOCK2(::cs_main, m_wallet.cs_wallet);
+        std::vector<WalletTxOut> result;
+        result.reserve(outputs.size());
+        for (const auto& output : outputs) {
+            result.emplace_back();
+            auto it = m_wallet.mapWallet.find(output.hash);
+            if (it != m_wallet.mapWallet.end()) {
+                int depth = it->second.GetDepthInMainChain();
+                if (depth >= 0) {
+                    result.back() = MakeWalletTxOut(m_wallet, it->second, output.n, depth);
+                }
+            }
+        }
+        return result;
+    }
     bool hdEnabled() override { return m_wallet.IsHDEnabled(); }
     OutputType getDefaultAddressType() override { return m_wallet.m_default_address_type; }
     OutputType getDefaultChangeType() override { return m_wallet.m_default_change_type; }
diff --git a/src/interface/wallet.h b/src/interface/wallet.h
index 317b5c683c..6cc196fd94 100644
--- a/src/interface/wallet.h
+++ b/src/interface/wallet.h
@@ -16,6 +16,7 @@
 #include <memory>
 #include <stdint.h>
 #include <string>
+#include <tuple>
 #include <utility>
 #include <vector>
 
@@ -30,6 +31,7 @@ namespace interface {
 class Handler;
 class PendingWalletTx;
 struct WalletBalances;
+struct WalletTxOut;
 
 using WalletOrderForm = std::vector<std::pair<std::string, std::string>>;
 using WalletValueMap = std::map<std::string, std::string>;
@@ -153,6 +155,14 @@ public:
     //! Get available balance.
     virtual CAmount getAvailableBalance(const CCoinControl& coin_control) = 0;
 
+    //! Return AvailableCoins + LockedCoins grouped by wallet address.
+    //! (put change in one group with wallet address)
+    using CoinsList = std::map<CTxDestination, std::vector<std::tuple<COutPoint, WalletTxOut>>>;
+    virtual CoinsList listCoins() = 0;
+
+    //! Return wallet transaction output information.
+    virtual std::vector<WalletTxOut> getCoins(const std::vector<COutPoint>& outputs) = 0;
+
     // Return whether HD enabled.
     virtual bool hdEnabled() = 0;
 
@@ -226,6 +236,15 @@ struct WalletBalances
     }
 };
 
+//! Wallet transaction output.
+struct WalletTxOut
+{
+    CTxOut txout;
+    int64_t time;
+    int depth_in_main_chain = -1;
+    bool is_spent = false;
+};
+
 //! Return implementation of Wallet interface. This function will be undefined
 //! in builds where ENABLE_WALLET is false.
 std::unique_ptr<Wallet> MakeWallet(CWallet& wallet);
diff --git a/src/qt/coincontroldialog.cpp b/src/qt/coincontroldialog.cpp
index 0a656a6f9b..2081d6ca08 100644
--- a/src/qt/coincontroldialog.cpp
+++ b/src/qt/coincontroldialog.cpp
@@ -14,7 +14,7 @@
 #include <qt/walletmodel.h>
 
 #include <wallet/coincontrol.h>
-#include <init.h>
+#include <interface/node.h>
 #include <key_io.h>
 #include <policy/fees.h>
 #include <policy/policy.h>
@@ -431,7 +431,7 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
         {
             CTxOut txout(amount, static_cast<CScript>(std::vector<unsigned char>(24, 0)));
             txDummy.vout.push_back(txout);
-            fDust |= IsDust(txout, ::dustRelayFee);
+            fDust |= IsDust(txout, model->node().getDustRelayFee());
         }
     }
 
@@ -445,16 +445,16 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
     bool fWitness               = false;
 
     std::vector<COutPoint> vCoinControl;
-    std::vector<COutput>   vOutputs;
     coinControl()->ListSelected(vCoinControl);
-    model->getOutputs(vCoinControl, vOutputs);
 
-    for (const COutput& out : vOutputs) {
+    size_t i = 0;
+    for (const auto& out : model->wallet().getCoins(vCoinControl)) {
+        if (out.depth_in_main_chain < 0) continue;
+
         // unselect already spent, very unlikely scenario, this could happen
         // when selected are spent elsewhere, like rpc or another computer
-        uint256 txhash = out.tx->GetHash();
-        COutPoint outpt(txhash, out.i);
-        if (model->isSpent(outpt))
+        const COutPoint& outpt = vCoinControl[i++];
+        if (out.is_spent)
         {
             coinControl()->UnSelect(outpt);
             continue;
@@ -464,18 +464,18 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
         nQuantity++;
 
         // Amount
-        nAmount += out.tx->tx->vout[out.i].nValue;
+        nAmount += out.txout.nValue;
 
         // Bytes
         CTxDestination address;
         int witnessversion = 0;
         std::vector<unsigned char> witnessprogram;
-        if (out.tx->tx->vout[out.i].scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram))
+        if (out.txout.scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram))
         {
             nBytesInputs += (32 + 4 + 1 + (107 / WITNESS_SCALE_FACTOR) + 4);
             fWitness = true;
         }
-        else if(ExtractDestination(out.tx->tx->vout[out.i].scriptPubKey, address))
+        else if(ExtractDestination(out.txout.scriptPubKey, address))
         {
             CPubKey pubkey;
             CKeyID *keyid = boost::get<CKeyID>(&address);
@@ -509,7 +509,7 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
                 nBytes -= 34;
 
         // Fee
-        nPayFee = GetMinimumFee(nBytes, *coinControl(), ::mempool, ::feeEstimator, nullptr /* FeeCalculation */);
+        nPayFee = model->node().getMinimumFee(nBytes, *coinControl(), nullptr /* returned_target */, nullptr /* reason */);
 
         if (nPayAmount > 0)
         {
@@ -521,7 +521,7 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
             if (nChange > 0 && nChange < MIN_CHANGE)
             {
                 CTxOut txout(nChange, static_cast<CScript>(std::vector<unsigned char>(24, 0)));
-                if (IsDust(txout, ::dustRelayFee))
+                if (IsDust(txout, model->node().getDustRelayFee()))
                 {
                     nPayFee += nChange;
                     nChange = 0;
@@ -621,13 +621,10 @@ void CoinControlDialog::updateView()
 
     int nDisplayUnit = model->getOptionsModel()->getDisplayUnit();
 
-    std::map<QString, std::vector<COutput> > mapCoins;
-    model->listCoins(mapCoins);
-
-    for (const std::pair<QString, std::vector<COutput>>& coins : mapCoins) {
+    for (const auto& coins : model->wallet().listCoins()) {
         CCoinControlWidgetItem *itemWalletAddress = new CCoinControlWidgetItem();
         itemWalletAddress->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
-        QString sWalletAddress = coins.first;
+        QString sWalletAddress = QString::fromStdString(EncodeDestination(coins.first));
         QString sWalletLabel = model->getAddressTableModel()->labelForAddress(sWalletAddress);
         if (sWalletLabel.isEmpty())
             sWalletLabel = tr("(no label)");
@@ -649,8 +646,10 @@ void CoinControlDialog::updateView()
 
         CAmount nSum = 0;
         int nChildren = 0;
-        for (const COutput& out : coins.second) {
-            nSum += out.tx->tx->vout[out.i].nValue;
+        for (const auto& outpair : coins.second) {
+            const COutPoint& output = std::get<0>(outpair);
+            const interface::WalletTxOut& out = std::get<1>(outpair);
+            nSum += out.txout.nValue;
             nChildren++;
 
             CCoinControlWidgetItem *itemOutput;
@@ -662,7 +661,7 @@ void CoinControlDialog::updateView()
             // address
             CTxDestination outputAddress;
             QString sAddress = "";
-            if(ExtractDestination(out.tx->tx->vout[out.i].scriptPubKey, outputAddress))
+            if(ExtractDestination(out.txout.scriptPubKey, outputAddress))
             {
                 sAddress = QString::fromStdString(EncodeDestination(outputAddress));
 
@@ -687,35 +686,33 @@ void CoinControlDialog::updateView()
             }
 
             // amount
-            itemOutput->setText(COLUMN_AMOUNT, BitcoinUnits::format(nDisplayUnit, out.tx->tx->vout[out.i].nValue));
-            itemOutput->setData(COLUMN_AMOUNT, Qt::UserRole, QVariant((qlonglong)out.tx->tx->vout[out.i].nValue)); // padding so that sorting works correctly
+            itemOutput->setText(COLUMN_AMOUNT, BitcoinUnits::format(nDisplayUnit, out.txout.nValue));
+            itemOutput->setData(COLUMN_AMOUNT, Qt::UserRole, QVariant((qlonglong)out.txout.nValue)); // padding so that sorting works correctly
 
             // date
-            itemOutput->setText(COLUMN_DATE, GUIUtil::dateTimeStr(out.tx->GetTxTime()));
-            itemOutput->setData(COLUMN_DATE, Qt::UserRole, QVariant((qlonglong)out.tx->GetTxTime()));
+            itemOutput->setText(COLUMN_DATE, GUIUtil::dateTimeStr(out.time));
+            itemOutput->setData(COLUMN_DATE, Qt::UserRole, QVariant((qlonglong)out.time));
 
             // confirmations
-            itemOutput->setText(COLUMN_CONFIRMATIONS, QString::number(out.nDepth));
-            itemOutput->setData(COLUMN_CONFIRMATIONS, Qt::UserRole, QVariant((qlonglong)out.nDepth));
+            itemOutput->setText(COLUMN_CONFIRMATIONS, QString::number(out.depth_in_main_chain));
+            itemOutput->setData(COLUMN_CONFIRMATIONS, Qt::UserRole, QVariant((qlonglong)out.depth_in_main_chain));
 
             // transaction hash
-            uint256 txhash = out.tx->GetHash();
-            itemOutput->setText(COLUMN_TXHASH, QString::fromStdString(txhash.GetHex()));
+            itemOutput->setText(COLUMN_TXHASH, QString::fromStdString(output.hash.GetHex()));
 
             // vout index
-            itemOutput->setText(COLUMN_VOUT_INDEX, QString::number(out.i));
+            itemOutput->setText(COLUMN_VOUT_INDEX, QString::number(output.n));
 
              // disable locked coins
-            if (model->wallet().isLockedCoin(COutPoint(txhash, out.i)))
+            if (model->wallet().isLockedCoin(output))
             {
-                COutPoint outpt(txhash, out.i);
-                coinControl()->UnSelect(outpt); // just to be sure
+                coinControl()->UnSelect(output); // just to be sure
                 itemOutput->setDisabled(true);
                 itemOutput->setIcon(COLUMN_CHECKBOX, platformStyle->SingleColorIcon(":/icons/lock_closed"));
             }
 
             // set checkbox
-            if (coinControl()->IsSelected(COutPoint(txhash, out.i)))
+            if (coinControl()->IsSelected(output))
                 itemOutput->setCheckState(COLUMN_CHECKBOX, Qt::Checked);
         }
 
diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
index 7a19773cf7..8010b6097e 100644
--- a/src/qt/walletmodel.cpp
+++ b/src/qt/walletmodel.cpp
@@ -475,38 +475,6 @@ void WalletModel::UnlockContext::CopyFrom(const UnlockContext& rhs)
     rhs.relock = false;
 }
 
-// returns a list of COutputs from COutPoints
-void WalletModel::getOutputs(const std::vector<COutPoint>& vOutpoints, std::vector<COutput>& vOutputs)
-{
-    LOCK2(cs_main, cwallet->cs_wallet);
-    for (const COutPoint& outpoint : vOutpoints)
-    {
-        auto it = cwallet->mapWallet.find(outpoint.hash);
-        if (it == cwallet->mapWallet.end()) continue;
-        int nDepth = it->second.GetDepthInMainChain();
-        if (nDepth < 0) continue;
-        COutput out(&it->second, outpoint.n, nDepth, true /* spendable */, true /* solvable */, true /* safe */);
-        vOutputs.push_back(out);
-    }
-}
-
-bool WalletModel::isSpent(const COutPoint& outpoint) const
-{
-    LOCK2(cs_main, cwallet->cs_wallet);
-    return cwallet->IsSpent(outpoint.hash, outpoint.n);
-}
-
-// AvailableCoins + LockedCoins grouped by wallet address (put change in one group with wallet address)
-void WalletModel::listCoins(std::map<QString, std::vector<COutput> >& mapCoins) const
-{
-    for (auto& group : cwallet->ListCoins()) {
-        auto& resultGroup = mapCoins[QString::fromStdString(EncodeDestination(group.first))];
-        for (auto& coin : group.second) {
-            resultGroup.emplace_back(std::move(coin));
-        }
-    }
-}
-
 void WalletModel::loadReceiveRequests(std::vector<std::string>& vReceiveRequests)
 {
     vReceiveRequests = m_wallet->getDestValues("rr"); // receive request
diff --git a/src/qt/walletmodel.h b/src/qt/walletmodel.h
index 8ff19f4ae5..6a4974e957 100644
--- a/src/qt/walletmodel.h
+++ b/src/qt/walletmodel.h
@@ -191,10 +191,6 @@ public:
 
     UnlockContext requestUnlock();
 
-    void getOutputs(const std::vector<COutPoint>& vOutpoints, std::vector<COutput>& vOutputs);
-    bool isSpent(const COutPoint& outpoint) const;
-    void listCoins(std::map<QString, std::vector<COutput> >& mapCoins) const;
-
     void loadReceiveRequests(std::vector<std::string>& vReceiveRequests);
     bool saveReceiveRequest(const std::string &sAddress, const int64_t nId, const std::string &sRequest);