dash/src/wallet/rpcwallet.cpp

// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2018 The Bitcoin Core developers
// Copyright (c) 2014-2021 The Dash Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <amount.h>
#include <chain.h>
#include <chainparams.h>
#include <consensus/validation.h>
#include <core_io.h>
#include <httpserver.h>
#include <init.h>
#include <interfaces/chain.h>
#include <keepass.h>
#include <net.h>
#include <node/transaction.h>
#include <policy/feerate.h>
#include <policy/fees.h>
#include <rpc/mining.h>
#include <rpc/rawtransaction_util.h>
#include <rpc/server.h>
#include <rpc/util.h>
#include <script/descriptor.h>
#include <timedata.h>
#include <txmempool.h>
#include <util/fees.h>
#include <util/system.h>
#include <util/moneystr.h>
#include <util/url.h>
#include <util/validation.h>
#include <validation.h>
#include <wallet/coincontrol.h>
#include <wallet/psbtwallet.h>
#include <wallet/rpcwallet.h>
#include <wallet/wallet.h>
#include <wallet/walletdb.h>
#include <wallet/walletutil.h>
#include <key_io.h>

#include <coinjoin/client.h>
#include <coinjoin/options.h>
#include <llmq/chainlocks.h>
#include <llmq/instantsend.h>

#include <stdint.h>

#include <univalue.h>

#include <functional>

static const std::string WALLET_ENDPOINT_BASE = "/wallet/";

bool GetWalletNameFromJSONRPCRequest(const JSONRPCRequest& request, std::string& wallet_name)
{
    if (request.URI.substr(0, WALLET_ENDPOINT_BASE.size()) == WALLET_ENDPOINT_BASE) {
        // wallet endpoint was used
        wallet_name = urlDecode(request.URI.substr(WALLET_ENDPOINT_BASE.size()));
        return true;
    }
    return false;
}

std::shared_ptr<CWallet> GetWalletForJSONRPCRequest(const JSONRPCRequest& request)
{
    std::string wallet_name;
    if (GetWalletNameFromJSONRPCRequest(request, wallet_name)) {
        std::shared_ptr<CWallet> pwallet = GetWallet(wallet_name);
        if (!pwallet) throw JSONRPCError(RPC_WALLET_NOT_FOUND, "Requested wallet does not exist or is not loaded");
        return pwallet;
    }

    std::vector<std::shared_ptr<CWallet>> wallets = GetWallets();
    return wallets.size() == 1 || (request.fHelp && wallets.size() > 0) ? wallets[0] : nullptr;
}

std::string HelpRequiringPassphrase(CWallet * const pwallet)
{
    return pwallet && pwallet->IsCrypted()
        ? "\nRequires wallet passphrase to be set with walletpassphrase call."
        : "";
}

bool EnsureWalletIsAvailable(CWallet * const pwallet, bool avoidException)
{
    if (pwallet) return true;
    if (avoidException) return false;
    if (!HasWallets()) {
        throw JSONRPCError(
            RPC_WALLET_NOT_FOUND, "No wallet is loaded. Load a wallet using loadwallet or create a new one with createwallet. (Note: A default wallet is no longer automatically created)");
    }
    throw JSONRPCError(RPC_WALLET_NOT_SPECIFIED,
        "Wallet file not specified (must request wallet RPC through /wallet/<filename> uri-path).");
}

void EnsureWalletIsUnlocked(CWallet * const pwallet)
{
    if (pwallet->IsLocked()) {
        throw JSONRPCError(RPC_WALLET_UNLOCK_NEEDED, "Error: Please enter the wallet passphrase with walletpassphrase first.");
    }
}

static void WalletTxToJSON(interfaces::Chain& chain, interfaces::Chain::Lock& locked_chain, const CWalletTx& wtx, UniValue& entry)
{
    AssertLockHeld(cs_main); // for mapBlockIndex
    int confirms = wtx.GetDepthInMainChain(locked_chain);
    bool fLocked = llmq::quorumInstantSendManager->IsLocked(wtx.GetHash());
    bool chainlock = false;
    if (confirms > 0) {
        chainlock = llmq::chainLocksHandler->HasChainLock(::BlockIndex()[wtx.hashBlock]->nHeight, wtx.hashBlock);
    }
    entry.pushKV("confirmations", confirms);
    entry.pushKV("instantlock", fLocked || chainlock);
    entry.pushKV("instantlock_internal", fLocked);
    entry.pushKV("chainlock", chainlock);
    if (wtx.IsCoinBase())
        entry.pushKV("generated", true);
    if (confirms > 0)
    {
        entry.pushKV("blockhash", wtx.hashBlock.GetHex());
        entry.pushKV("blockindex", wtx.nIndex);
        int64_t block_time;
        bool found_block = chain.findBlock(wtx.hashBlock, nullptr /* block */, &block_time);
        assert(found_block);
        entry.pushKV("blocktime", block_time);
    } else {
        entry.pushKV("trusted", wtx.IsTrusted(locked_chain));
    }
    uint256 hash = wtx.GetHash();
    entry.pushKV("txid", hash.GetHex());
    UniValue conflicts(UniValue::VARR);
    for (const uint256& conflict : wtx.GetConflicts())
        conflicts.push_back(conflict.GetHex());
    entry.pushKV("walletconflicts", conflicts);
    entry.pushKV("time", wtx.GetTxTime());
    entry.pushKV("timereceived", (int64_t)wtx.nTimeReceived);

    for (const std::pair<const std::string, std::string>& item : wtx.mapValue)
        entry.pushKV(item.first, item.second);
}

static std::string LabelFromValue(const UniValue& value)
{
    std::string label = value.get_str();
    if (label == "*")
        throw JSONRPCError(RPC_WALLET_INVALID_LABEL_NAME, "Invalid label name");
    return label;
}

UniValue getnewaddress(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() > 1)
        throw std::runtime_error(
            RPCHelpMan{"getnewaddress",
                "\nReturns a new Dash address for receiving payments.\n"
                "If 'label' is specified, it is added to the address book \n"
                "so payments received with the address will be associated with 'label'.\n",
                {
                    {"label", RPCArg::Type::STR, /* default */ "\"\"", "The label name for the address to be linked to. It can also be set to the empty string \"\" to represent the default label. The label does not need to exist, it will be created if there is no label by the given name."},
                },
                RPCResult{
            "\"address\"    (string) The new dash address\n"
                },
                RPCExamples{
                    HelpExampleCli("getnewaddress", "")
            + HelpExampleRpc("getnewaddress", "")
                },
            }.ToString());

    if (pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Error: Private keys are disabled for this wallet");
    }

    LOCK(pwallet->cs_wallet);

    // Parse the label first so we don't generate a key if there's an error
    std::string label;
    if (!request.params[0].isNull())
        label = LabelFromValue(request.params[0]);

    if (!pwallet->IsLocked(true)) {
        pwallet->TopUpKeyPool();
    }

    // Generate a new key that is added to wallet
    CPubKey newKey;
    if (!pwallet->GetKeyFromPool(newKey, false)) {
        throw JSONRPCError(RPC_WALLET_KEYPOOL_RAN_OUT, "Error: Keypool ran out, please call keypoolrefill first");
    }
    CKeyID keyID = newKey.GetID();

    pwallet->SetAddressBook(keyID, label, "receive");

    return EncodeDestination(keyID);
}

static UniValue getrawchangeaddress(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() > 0)
        throw std::runtime_error(
            RPCHelpMan{"getrawchangeaddress",
                "\nReturns a new Dash address, for receiving change.\n"
                "This is for use with raw transactions, NOT normal use.\n",
                {},
                RPCResult{
            "\"address\"    (string) The address\n"
                },
                RPCExamples{
                    HelpExampleCli("getrawchangeaddress", "")
            + HelpExampleRpc("getrawchangeaddress", "")
                },
            }.ToString());

    if (pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Error: Private keys are disabled for this wallet");
    }

    LOCK(pwallet->cs_wallet);

    if (!pwallet->IsLocked(true)) {
        pwallet->TopUpKeyPool();
    }

    CReserveKey reservekey(pwallet);
    CPubKey vchPubKey;
    if (!reservekey.GetReservedKey(vchPubKey, true))
        throw JSONRPCError(RPC_WALLET_KEYPOOL_RAN_OUT, "Error: Keypool ran out, please call keypoolrefill first");

    reservekey.KeepKey();

    CKeyID keyID = vchPubKey.GetID();

    return EncodeDestination(keyID);
}


static UniValue setlabel(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() != 2)
        throw std::runtime_error(
            RPCHelpMan{"setlabel",
                "\nSets the label associated with the given address.\n",
                {
                    {"address", RPCArg::Type::STR, RPCArg::Optional::NO, "The dash address to be associated with a label."},
                    {"label", RPCArg::Type::STR, RPCArg::Optional::NO, "The label to assign to the address."},
                },
                RPCResults{},
                RPCExamples{
                    HelpExampleCli("setlabel", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\" \"tabby\"")
            + HelpExampleRpc("setlabel", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\", \"tabby\"")
                },
            }.ToString());

    LOCK(pwallet->cs_wallet);

    CTxDestination dest = DecodeDestination(request.params[0].get_str());
    if (!IsValidDestination(dest)) {
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Dash address");
    }

    std::string label = LabelFromValue(request.params[1]);

    if (IsMine(*pwallet, dest)) {
        pwallet->SetAddressBook(dest, label, "receive");
    } else {
        pwallet->SetAddressBook(dest, label, "send");
    }

    return NullUniValue;
}


static CTransactionRef SendMoney(interfaces::Chain::Lock& locked_chain, CWallet * const pwallet, const CTxDestination &address, CAmount nValue, bool fSubtractFeeFromAmount, const CCoinControl& coin_control, mapValue_t mapValue)
{
    CAmount curBalance = pwallet->GetBalance().m_mine_trusted;

    // Check amount
    if (nValue <= 0)
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid amount");

    if (nValue > curBalance)
        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Insufficient funds");

    if (pwallet->GetBroadcastTransactions() && !pwallet->chain().p2pEnabled()) {
        throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");
    }

    if (coin_control.IsUsingCoinJoin()) {
        mapValue["DS"] = "1";
    }

    // Parse Dash address
    CScript scriptPubKey = GetScriptForDestination(address);

    // Create and send the transaction
    CReserveKey reservekey(pwallet);
    CAmount nFeeRequired;
    std::string strError;
    std::vector<CRecipient> vecSend;
    int nChangePosRet = -1;
    CRecipient recipient = {scriptPubKey, nValue, fSubtractFeeFromAmount};
    vecSend.push_back(recipient);
    CTransactionRef tx;
    if (!pwallet->CreateTransaction(locked_chain, vecSend, tx, reservekey, nFeeRequired, nChangePosRet, strError, coin_control)) {
        if (!fSubtractFeeFromAmount && nValue + nFeeRequired > curBalance)
            strError = strprintf("Error: This transaction requires a transaction fee of at least %s", FormatMoney(nFeeRequired));
        throw JSONRPCError(RPC_WALLET_ERROR, strError);
    }
    CValidationState state;
    if (!pwallet->CommitTransaction(tx, std::move(mapValue), {} /* orderForm */, reservekey, state)) {
        strError = strprintf("Error: The transaction was rejected! Reason given: %s", FormatStateMessage(state));
        throw JSONRPCError(RPC_WALLET_ERROR, strError);
    }
    return tx;
}

static UniValue sendtoaddress(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 2 || request.params.size() > 9)
        throw std::runtime_error(
            RPCHelpMan{"sendtoaddress",
                "\nSend an amount to a given address." +
                    HelpRequiringPassphrase(pwallet) + "\n",
                {
                    {"address", RPCArg::Type::STR, RPCArg::Optional::NO, "The dash address to send to."},
                    {"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "The amount in " + CURRENCY_UNIT + " to send. eg 0.1"},
                    {"comment", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG, "A comment used to store what the transaction is for.\n"
            "                             This is not part of the transaction, just kept in your wallet."},
                    {"comment_to", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG, "A comment to store the name of the person or organization\n"
            "                             to which you're sending the transaction. This is not part of the \n"
            "                             transaction, just kept in your wallet."},
                    {"subtractfeefromamount", RPCArg::Type::BOOL, /* default */ "false", "The fee will be deducted from the amount being sent.\n"
            "                             The recipient will receive less amount of Dash than you enter in the amount field."},
                    {"use_is", RPCArg::Type::BOOL, /* default */ "false", "Deprecated and ignored"},
                    {"use_cj", RPCArg::Type::BOOL, /* default */ "false", "Use CoinJoin funds only"},
                    {"conf_target", RPCArg::Type::NUM, /* default */ "wallet default", "Confirmation target (in blocks)"},
                    {"estimate_mode", RPCArg::Type::STR, /* default */ "UNSET", "The fee estimate mode, must be one of:\n"
            "       \"UNSET\"\n"
            "       \"ECONOMICAL\"\n"
            "       \"CONSERVATIVE\""},
                },
                RPCResult{
            "\"txid\"                  (string) The transaction id.\n"
                },
                RPCExamples{
                    HelpExampleCli("sendtoaddress", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\" 0.1")
            + HelpExampleCli("sendtoaddress", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\" 0.1 \"donation\" \"seans outpost\"")
            + HelpExampleCli("sendtoaddress", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\" 0.1 \"\" \"\" true")
            + HelpExampleRpc("sendtoaddress", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\", 0.1, \"donation\", \"seans outpost\"")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK2(mempool.cs, pwallet->cs_wallet);

    CTxDestination dest = DecodeDestination(request.params[0].get_str());
    if (!IsValidDestination(dest)) {
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid address");
    }

    // Amount
    CAmount nAmount = AmountFromValue(request.params[1]);
    if (nAmount <= 0)
        throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount for send");

    // Wallet comments
    mapValue_t mapValue;
    if (!request.params[2].isNull() && !request.params[2].get_str().empty())
        mapValue["comment"] = request.params[2].get_str();
    if (!request.params[3].isNull() && !request.params[3].get_str().empty())
        mapValue["to"] = request.params[3].get_str();

    bool fSubtractFeeFromAmount = false;
    if (!request.params[4].isNull()) {
        fSubtractFeeFromAmount = request.params[4].get_bool();
    }

    CCoinControl coin_control;

    if (!request.params[6].isNull()) {
        coin_control.UseCoinJoin(request.params[6].get_bool());
    }

    if (!request.params[7].isNull()) {
        coin_control.m_confirm_target = ParseConfirmTarget(request.params[7], pwallet->chain().estimateMaxBlocks());
    }

    if (!request.params[8].isNull()) {
        if (!FeeModeFromString(request.params[8].get_str(), coin_control.m_fee_mode)) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid estimate_mode parameter");
        }
    }

    EnsureWalletIsUnlocked(pwallet);

    CTransactionRef tx = SendMoney(*locked_chain, pwallet, dest, nAmount, fSubtractFeeFromAmount, coin_control, std::move(mapValue));
    return tx->GetHash().GetHex();
}

// DEPRECATED
static UniValue instantsendtoaddress(const JSONRPCRequest& request)
{
    if (request.fHelp) {
        throw std::runtime_error("instantsendtoaddress is deprecated and sendtoaddress should be used instead");
    }
    LogPrintf("WARNING: Used deprecated RPC method 'instantsendtoaddress'! Please use 'sendtoaddress' instead\n");
    return sendtoaddress(request);
}

static UniValue listaddressgroupings(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() != 0)
        throw std::runtime_error(
            RPCHelpMan{"listaddressgroupings",
                "\nLists groups of addresses which have had their common ownership\n"
                "made public by common use as inputs or as the resulting change\n"
                "in past transactions\n",
                {},
                RPCResult{
            "[\n"
            "  [\n"
            "    [\n"
            "      \"address\",            (string) The dash address\n"
            "      amount,                 (numeric) The amount in " + CURRENCY_UNIT + "\n"
            "      \"label\"               (string, optional) The label\n"
            "    ]\n"
            "    ,...\n"
            "  ]\n"
            "  ,...\n"
            "]\n"
                },
                RPCExamples{
                    HelpExampleCli("listaddressgroupings", "")
            + HelpExampleRpc("listaddressgroupings", "")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    UniValue jsonGroupings(UniValue::VARR);
    std::map<CTxDestination, CAmount> balances = pwallet->GetAddressBalances(*locked_chain);
    for (const std::set<CTxDestination>& grouping : pwallet->GetAddressGroupings()) {
        UniValue jsonGrouping(UniValue::VARR);
        for (const CTxDestination& address : grouping)
        {
            UniValue addressInfo(UniValue::VARR);
            addressInfo.push_back(EncodeDestination(address));
            addressInfo.push_back(ValueFromAmount(balances[address]));
            {
                if (pwallet->mapAddressBook.find(address) != pwallet->mapAddressBook.end()) {
                    addressInfo.push_back(pwallet->mapAddressBook.find(address)->second.name);
                }
            }
            jsonGrouping.push_back(addressInfo);
        }
        jsonGroupings.push_back(jsonGrouping);
    }
    return jsonGroupings;
}

static UniValue listaddressbalances(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();
    if (!EnsureWalletIsAvailable(pwallet, request.fHelp))
        return NullUniValue;

    if (request.fHelp || request.params.size() > 1)
        throw std::runtime_error(
            RPCHelpMan{"listaddressbalances",
                "\nLists addresses of this wallet and their balances\n",
                {
                    {"minamount", RPCArg::Type::NUM, /* default */ "0", "Minimum balance in " + CURRENCY_UNIT + " an address should have to be shown in the list"},
                },
                RPCResult{
            "{\n"
            "  \"address\": amount,       (string) The dash address and the amount in " + CURRENCY_UNIT + "\n"
            "  ,...\n"
            "}\n"
                },
                RPCExamples{
                    HelpExampleCli("listaddressbalances", "")
            + HelpExampleCli("listaddressbalances", "10")
            + HelpExampleRpc("listaddressbalances", "")
            + HelpExampleRpc("listaddressbalances", "10")
                }
            }.ToString());

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    CAmount nMinAmount = 0;
    if (!request.params[0].isNull())
        nMinAmount = AmountFromValue(request.params[0]);

    if (nMinAmount < 0)
        throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount");

    UniValue jsonBalances(UniValue::VOBJ);
    std::map<CTxDestination, CAmount> balances = pwallet->GetAddressBalances(*locked_chain);
    for (auto& balance : balances)
        if (balance.second >= nMinAmount)
            jsonBalances.pushKV(EncodeDestination(balance.first), ValueFromAmount(balance.second));

    return jsonBalances;
}

static UniValue signmessage(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() != 2)
        throw std::runtime_error(
            RPCHelpMan{"signmessage",
                "\nSign a message with the private key of an address" +
                    HelpRequiringPassphrase(pwallet) + "\n",
                {
                    {"address", RPCArg::Type::STR, RPCArg::Optional::NO, "The dash address to use for the private key."},
                    {"message", RPCArg::Type::STR, RPCArg::Optional::NO, "The message to create a signature of."},
                },
                RPCResult{
            "\"signature\"          (string) The signature of the message encoded in base 64\n"
                },
                RPCExamples{
            "\nUnlock the wallet for 30 seconds\n"
            + HelpExampleCli("walletpassphrase", "\"mypassphrase\" 30") +
            "\nCreate the signature\n"
            + HelpExampleCli("signmessage", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\" \"my message\"") +
            "\nVerify the signature\n"
            + HelpExampleCli("verifymessage", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\" \"signature\" \"my message\"") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("signmessage", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\", \"my message\"")
                },
            }.ToString());

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    EnsureWalletIsUnlocked(pwallet);

    std::string strAddress = request.params[0].get_str();
    std::string strMessage = request.params[1].get_str();

    CTxDestination dest = DecodeDestination(strAddress);
    if (!IsValidDestination(dest)) {
        throw JSONRPCError(RPC_TYPE_ERROR, "Invalid address");
    }

    const CKeyID *keyID = boost::get<CKeyID>(&dest);
    if (!keyID) {
        throw JSONRPCError(RPC_TYPE_ERROR, "Address does not refer to key");
    }

    CKey key;
    if (!pwallet->GetKey(*keyID, key)) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Private key not available");
    }

    CHashWriter ss(SER_GETHASH, 0);
    ss << strMessageMagic;
    ss << strMessage;

    std::vector<unsigned char> vchSig;
    if (!key.SignCompact(ss.GetHash(), vchSig))
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Sign failed");

    return EncodeBase64(vchSig);
}

static UniValue getreceivedbyaddress(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 1 || request.params.size() > 3)
        throw std::runtime_error(
            RPCHelpMan{"getreceivedbyaddress",
                "\nReturns the total amount received by the given address in transactions with at least minconf confirmations.\n",
                {
                    {"address", RPCArg::Type::STR, RPCArg::Optional::NO, "The dash address for transactions."},
                    {"minconf", RPCArg::Type::NUM, /* default */ "1", "Only include transactions confirmed at least this many times."},
                    {"addlocked", RPCArg::Type::BOOL, /* default */ "false", "Whether to include transactions locked via InstantSend."},
                },
                RPCResult{
            "amount   (numeric) The total amount in " + CURRENCY_UNIT + " received at this address.\n"
                },
                RPCExamples{
            "\nThe amount from transactions with at least 1 confirmation\n"
            + HelpExampleCli("getreceivedbyaddress", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\"") +
            "\nThe amount including unconfirmed transactions, zero confirmations\n"
            + HelpExampleCli("getreceivedbyaddress", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\" 0") +
            "\nThe amount with at least 6 confirmations\n"
            + HelpExampleCli("getreceivedbyaddress", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\" 6") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("getreceivedbyaddress", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\", 6")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    // Dash address
    CTxDestination dest = DecodeDestination(request.params[0].get_str());
    if (!IsValidDestination(dest)) {
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Dash address");
    }
    CScript scriptPubKey = GetScriptForDestination(dest);
    if (!IsMine(*pwallet, scriptPubKey)) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Address not found in wallet");
    }

    // Minimum confirmations
    int nMinDepth = 1;
    if (!request.params[1].isNull())
        nMinDepth = request.params[1].get_int();
    bool fAddLocked = (!request.params[2].isNull() && request.params[2].get_bool());

    // Tally
    CAmount nAmount = 0;
    for (const std::pair<const uint256, CWalletTx>& pairWtx : pwallet->mapWallet) {
        const CWalletTx& wtx = pairWtx.second;
        if (wtx.IsCoinBase() || !locked_chain->checkFinalTx(*wtx.tx)) {
            continue;
        }

        for (const CTxOut& txout : wtx.tx->vout)
            if (txout.scriptPubKey == scriptPubKey)
                if ((wtx.GetDepthInMainChain(*locked_chain) >= nMinDepth) || (fAddLocked && wtx.IsLockedByInstantSend()))
                    nAmount += txout.nValue;
    }

    return  ValueFromAmount(nAmount);
}


static UniValue getreceivedbylabel(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 1 || request.params.size() > 3)
        throw std::runtime_error(
            RPCHelpMan{"getreceivedbylabel",
                "\nReturns the total amount received by addresses with <label> in transactions with specified minimum number of confirmations.\n",
                {
                    {"label", RPCArg::Type::STR, RPCArg::Optional::NO, "The selected label, may be the default label using \"\"."},
                    {"minconf", RPCArg::Type::NUM, /* default */ "1", "Only include transactions confirmed at least this many times."},
                    {"addlocked", RPCArg::Type::BOOL, /* default */ "false", "Whether to include transactions locked via InstantSend."},
                },
                RPCResult{
            "amount              (numeric) The total amount in " + CURRENCY_UNIT + " received for this label.\n"
                },
                RPCExamples{
            "\nAmount received by the default label with at least 1 confirmation\n"
            + HelpExampleCli("getreceivedbylabel", "\"\"") +
            "\nAmount received at the tabby label including unconfirmed amounts with zero confirmations\n"
            + HelpExampleCli("getreceivedbylabel", "\"tabby\" 0") +
            "\nThe amount with at least 6 confirmations\n"
            + HelpExampleCli("getreceivedbylabel", "\"tabby\" 6") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("getreceivedbylabel", "\"tabby\", 6")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    // Minimum confirmations
    int nMinDepth = 1;
    if (!request.params[1].isNull())
        nMinDepth = request.params[1].get_int();
    bool fAddLocked = (!request.params[2].isNull() && request.params[2].get_bool());

    // Get the set of pub keys assigned to label
    std::string label = LabelFromValue(request.params[0]);
    std::set<CTxDestination> setAddress = pwallet->GetLabelAddresses(label);

    // Tally
    CAmount nAmount = 0;
    for (const std::pair<const uint256, CWalletTx>& pairWtx : pwallet->mapWallet) {
        const CWalletTx& wtx = pairWtx.second;
        if (wtx.IsCoinBase() || !locked_chain->checkFinalTx(*wtx.tx))
            continue;

        for (const CTxOut& txout : wtx.tx->vout)
        {
            CTxDestination address;
            if (ExtractDestination(txout.scriptPubKey, address) && IsMine(*pwallet, address) && setAddress.count(address)) {
                if ((wtx.GetDepthInMainChain(*locked_chain) >= nMinDepth) || (fAddLocked && wtx.IsLockedByInstantSend()))
                    nAmount += txout.nValue;
            }
        }
    }

    return ValueFromAmount(nAmount);
}


static UniValue getbalance(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || (request.params.size() > 4))
        throw std::runtime_error(
            RPCHelpMan{"getbalance",
                "\nReturns the total available balance.\n"
                "The available balance is what the wallet considers currently spendable, and is\n"
                "thus affected by options which limit spendability such as -spendzeroconfchange.\n",
                {
                    {"dummy", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG, "Remains for backward compatibility. Must be excluded or set to \"*\"."},
                    {"minconf", RPCArg::Type::NUM, /* default */ "0", "Only include transactions confirmed at least this many times."},
                    {"addlocked", RPCArg::Type::BOOL, /* default */ "false", "Whether to include transactions locked via InstantSend in the wallet's balance."},
                    {"include_watchonly", RPCArg::Type::BOOL, /* default */ "false", "Also include balance in watch-only addresses (see 'importaddress')"},
                },
                RPCResult{
            "amount              (numeric) The total amount in " + CURRENCY_UNIT + " received for this wallet.\n"
                },
                RPCExamples{
            "\nThe total amount in the wallet with 0 or more confirmations\n"
            + HelpExampleCli("getbalance", "") +
            "\nThe total amount in the wallet with at least 6 confirmations\n"
            + HelpExampleCli("getbalance", "\"*\" 6") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("getbalance", "\"*\", 6")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    const UniValue& dummy_value = request.params[0];
    if (!dummy_value.isNull() && dummy_value.get_str() != "*") {
        throw JSONRPCError(RPC_METHOD_DEPRECATED, "dummy first argument must be excluded or set to \"*\".");
    }

    int min_depth = 0;
    if (!request.params[1].isNull()) {
        min_depth = request.params[1].get_int();
    }

    const UniValue& addlocked = request.params[2];
    bool fAddLocked = false;
    if (!addlocked.isNull()) {
        fAddLocked = addlocked.get_bool();
    }

    bool include_watchonly = false;
    if (!request.params[3].isNull() && request.params[3].get_bool()) {
        include_watchonly = true;
    }

    const auto bal = pwallet->GetBalance(min_depth, fAddLocked);

    return ValueFromAmount(bal.m_mine_trusted + (include_watchonly ? bal.m_watchonly_trusted : 0));
}

static UniValue getunconfirmedbalance(const JSONRPCRequest &request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() > 0)
        throw std::runtime_error(
            RPCHelpMan{"getunconfirmedbalance",
                "Returns the server's total unconfirmed balance\n",
                {},
                RPCResults{},
                RPCExamples{""},
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    return ValueFromAmount(pwallet->GetBalance().m_mine_untrusted_pending);
}


static UniValue sendmany(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 2 || request.params.size() > 10)
        throw std::runtime_error(
            RPCHelpMan{"sendmany",
                "\nSend multiple times. Amounts are double-precision floating point numbers." +
                    HelpRequiringPassphrase(pwallet) + "\n",
                {
                    {"dummy", RPCArg::Type::STR, RPCArg::Optional::NO, "Must be set to \"\" for backwards compatibility.", "\"\""},
                    {"amounts", RPCArg::Type::OBJ, RPCArg::Optional::NO, "A json object with addresses and amounts",
                        {
                            {"address", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "The dash address is the key, the numeric amount (can be string) in " + CURRENCY_UNIT + " is the value"},
                        },
                    },
                    {"minconf", RPCArg::Type::NUM, /* default */ "1", "Only use the balance confirmed at least this many times."},
                    {"addlocked", RPCArg::Type::BOOL, /* default */ "false", "Whether to include transactions locked via InstantSend."},
                    {"comment", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG, "A comment"},
                    {"subtractfeefrom", RPCArg::Type::ARR, RPCArg::Optional::OMITTED_NAMED_ARG, "A json array with addresses.\n"
            "                           The fee will be equally deducted from the amount of each selected address.\n"
            "                           Those recipients will receive less dashs than you enter in their corresponding amount field.\n"
            "                           If no addresses are specified here, the sender pays the fee.",
                        {
                            {"address", RPCArg::Type::STR, RPCArg::Optional::OMITTED, "Subtract fee from this address"},
                        },
                    },
                    {"use_is", RPCArg::Type::BOOL, /* default */ "false", "Deprecated and ignored"},
                    {"use_cj", RPCArg::Type::BOOL, /* default */ "false", "Use CoinJoin funds only"},
                    {"conf_target", RPCArg::Type::NUM, /* default */ "wallet default", "Confirmation target (in blocks)"},
                    {"estimate_mode", RPCArg::Type::STR, /* default */ "UNSET", "The fee estimate mode, must be one of:\n"
            "       \"UNSET\"\n"
            "       \"ECONOMICAL\"\n"
            "       \"CONSERVATIVE\""},
                },
                 RPCResult{
            "\"txid\"                   (string) The transaction id for the send. Only 1 transaction is created regardless of \n"
            "                                    the number of addresses.\n"
                 },
                RPCExamples{
            "\nSend two amounts to two different addresses:\n"
            + HelpExampleCli("sendmany", "\"\" \"{\\\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\\\":0.01,\\\"XuQQkwA4FYkq2XERzMY2CiAZhJTEDAbtcG\\\":0.02}\"") +
            "\nSend two amounts to two different addresses setting the confirmation and comment:\n"
            + HelpExampleCli("sendmany", "\"\" \"{\\\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\\\":0.01,\\\"XuQQkwA4FYkq2XERzMY2CiAZhJTEDAbtcG\\\":0.02}\" 6 false \"testing\"") +
            "\nAs a json rpc call\n"
            + HelpExampleRpc("sendmany", "\"\", \"{\\\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\\\":0.01,\\\"XuQQkwA4FYkq2XERzMY2CiAZhJTEDAbtcG\\\":0.02}\", 6, false, \"testing\"")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK2(mempool.cs, pwallet->cs_wallet);

    if (pwallet->GetBroadcastTransactions() && !pwallet->chain().p2pEnabled()) {
        throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");
    }

    if (!request.params[0].isNull() && !request.params[0].get_str().empty()) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Dummy value must be set to \"\"");
    }
    UniValue sendTo = request.params[1].get_obj();
    int nMinDepth = 1;
    if (!request.params[2].isNull())
        nMinDepth = request.params[2].get_int();
    bool fAddLocked = (!request.params[3].isNull() && request.params[3].get_bool());

    mapValue_t mapValue;
    if (!request.params[4].isNull() && !request.params[4].get_str().empty())
        mapValue["comment"] = request.params[4].get_str();

    UniValue subtractFeeFrom(UniValue::VARR);
    if (!request.params[5].isNull())
        subtractFeeFrom = request.params[5].get_array();

    // request.params[6] ("use_is") is deprecated and not used here

    CCoinControl coin_control;

    if (!request.params[7].isNull()) {
        coin_control.UseCoinJoin(request.params[7].get_bool());
    }

    if (!request.params[8].isNull()) {
        coin_control.m_confirm_target = ParseConfirmTarget(request.params[8], pwallet->chain().estimateMaxBlocks());
    }

    if (!request.params[9].isNull()) {
        if (!FeeModeFromString(request.params[9].get_str(), coin_control.m_fee_mode)) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid estimate_mode parameter");
        }
    }

    if (coin_control.IsUsingCoinJoin()) {
        mapValue["DS"] = "1";
    }

    std::set<CTxDestination> destinations;
    std::vector<CRecipient> vecSend;

    CAmount totalAmount = 0;
    std::vector<std::string> keys = sendTo.getKeys();
    for (const std::string& name_ : keys) {
        CTxDestination dest = DecodeDestination(name_);
        if (!IsValidDestination(dest)) {
            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, std::string("Invalid Dash address: ") + name_);
        }

        if (destinations.count(dest)) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, std::string("Invalid parameter, duplicated address: ") + name_);
        }
        destinations.insert(dest);

        CScript scriptPubKey = GetScriptForDestination(dest);
        CAmount nAmount = AmountFromValue(sendTo[name_]);
        if (nAmount <= 0)
            throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount for send");
        totalAmount += nAmount;

        bool fSubtractFeeFromAmount = false;
        for (unsigned int idx = 0; idx < subtractFeeFrom.size(); idx++) {
            const UniValue& addr = subtractFeeFrom[idx];
            if (addr.get_str() == name_)
                fSubtractFeeFromAmount = true;
        }

        CRecipient recipient = {scriptPubKey, nAmount, fSubtractFeeFromAmount};
        vecSend.push_back(recipient);
    }

    EnsureWalletIsUnlocked(pwallet);

    // Check funds
    if (totalAmount > pwallet->GetLegacyBalance(ISMINE_SPENDABLE, nMinDepth, fAddLocked)) {
        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Wallet has insufficient funds");
    }

    // Send
    CReserveKey keyChange(pwallet);
    CAmount nFeeRequired = 0;
    int nChangePosRet = -1;
    std::string strFailReason;
    CTransactionRef tx;
    bool fCreated = pwallet->CreateTransaction(*locked_chain, vecSend, tx, keyChange, nFeeRequired, nChangePosRet, strFailReason, coin_control);
    if (!fCreated)
        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, strFailReason);
    CValidationState state;
    if (!pwallet->CommitTransaction(tx, std::move(mapValue), {} /* orderForm */, keyChange, state)) {
        strFailReason = strprintf("Transaction commit failed:: %s", FormatStateMessage(state));
        throw JSONRPCError(RPC_WALLET_ERROR, strFailReason);
    }

    return tx->GetHash().GetHex();
}

static UniValue addmultisigaddress(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 2 || request.params.size() > 3)
    {
        std::string msg =
            RPCHelpMan{"addmultisigaddress",
                "\nAdd a nrequired-to-sign multisignature address to the wallet. Requires a new wallet backup.\n"
                "Each key is a Dash address or hex-encoded public key.\n"
                "This functionality is only intended for use with non-watchonly addresses.\n"
                "See `importaddress` for watchonly p2sh address support.\n"
                "If 'label' is specified, assign address to that label.\n",
                {
                    {"nrequired", RPCArg::Type::NUM, RPCArg::Optional::NO, "The number of required signatures out of the n keys or addresses."},
                    {"keys", RPCArg::Type::ARR, RPCArg::Optional::NO, "A json array of dash addresses or hex-encoded public keys",
                        {
                            {"key", RPCArg::Type::STR, RPCArg::Optional::OMITTED, "dash address or hex-encoded public key"},
                        },
                        },
                    {"label", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG, "A label to assign the addresses to."},
                },
                RPCResult{
            "{\n"
            "  \"address\":\"multisigaddress\",    (string) The value of the new multisig address.\n"
            "  \"redeemScript\":\"script\"         (string) The string value of the hex-encoded redemption script.\n"
            "}\n"
                },
                RPCExamples{
            "\nAdd a multisig address from 2 addresses\n"
            + HelpExampleCli("addmultisigaddress", "2 \"[\\\"Xt4qk9uKvQYAonVGSZNXqxeDmtjaEWgfrS\\\",\\\"XoSoWQkpgLpppPoyyzbUFh1fq2RBvW6UK2\\\"]\"") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("addmultisigaddress", "2, \"[\\\"Xt4qk9uKvQYAonVGSZNXqxeDmtjaEWgfrS\\\",\\\"XoSoWQkpgLpppPoyyzbUFh1fq2RBvW6UK2\\\"]\"")
                },
            }.ToString();
        throw std::runtime_error(msg);
    }

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    std::string label;
    if (!request.params[2].isNull())
        label = LabelFromValue(request.params[2]);

    int required = request.params[0].get_int();

    // Get the public keys
    const UniValue& keys_or_addrs = request.params[1].get_array();
    std::vector<CPubKey> pubkeys;
    for (unsigned int i = 0; i < keys_or_addrs.size(); ++i) {
        if (IsHex(keys_or_addrs[i].get_str()) && (keys_or_addrs[i].get_str().length() == 66 || keys_or_addrs[i].get_str().length() == 130)) {
            pubkeys.push_back(HexToPubKey(keys_or_addrs[i].get_str()));
        } else {
            pubkeys.push_back(AddrToPubKey(pwallet, keys_or_addrs[i].get_str()));
        }
    }

    // Construct using pay-to-script-hash:
    CScript inner = CreateMultisigRedeemscript(required, pubkeys);
    CScriptID innerID(inner);
    pwallet->AddCScript(inner);

    pwallet->SetAddressBook(innerID, label, "send");

    UniValue result(UniValue::VOBJ);
    result.pushKV("address", EncodeDestination(innerID));
    result.pushKV("redeemScript", HexStr(inner));
    return result;
}


struct tallyitem
{
    CAmount nAmount{0};
    int nConf{std::numeric_limits<int>::max()};
    std::vector<uint256> txids;
    bool fIsWatchonly{false};
    tallyitem()
    {
    }
};

static UniValue ListReceived(interfaces::Chain::Lock& locked_chain, CWallet * const pwallet, const UniValue& params, bool by_label) EXCLUSIVE_LOCKS_REQUIRED(pwallet->cs_wallet)
{
    // Minimum confirmations
    int nMinDepth = 1;
    if (!params[0].isNull())
        nMinDepth = params[0].get_int();
    bool fAddLocked = false;
    if (!params[1].isNull())
        fAddLocked = params[1].get_bool();

    // Whether to include empty labels
    bool fIncludeEmpty = false;
    if (!params[2].isNull())
        fIncludeEmpty = params[2].get_bool();

    isminefilter filter = ISMINE_SPENDABLE;
    if(!params[3].isNull())
        if(params[3].get_bool())
            filter = filter | ISMINE_WATCH_ONLY;

    bool has_filtered_address = false;
    CTxDestination filtered_address = CNoDestination();
    if (!by_label && params.size() > 4) {
        if (!IsValidDestinationString(params[4].get_str())) {
            throw JSONRPCError(RPC_WALLET_ERROR, "address_filter parameter was invalid");
        }
        filtered_address = DecodeDestination(params[4].get_str());
        has_filtered_address = true;
    }

    // Tally
    std::map<CTxDestination, tallyitem> mapTally;
    for (const std::pair<const uint256, CWalletTx>& pairWtx : pwallet->mapWallet) {
        const CWalletTx& wtx = pairWtx.second;

        if (wtx.IsCoinBase() || !locked_chain.checkFinalTx(*wtx.tx))
            continue;

        int nDepth = wtx.GetDepthInMainChain(locked_chain);
        if ((nDepth < nMinDepth) && !(fAddLocked && wtx.IsLockedByInstantSend()))
            continue;

        for (const CTxOut& txout : wtx.tx->vout)
        {
            CTxDestination address;
            if (!ExtractDestination(txout.scriptPubKey, address))
                continue;

            if (has_filtered_address && !(filtered_address == address)) {
                continue;
            }

            isminefilter mine = IsMine(*pwallet, address);
            if(!(mine & filter))
                continue;

            tallyitem& item = mapTally[address];
            item.nAmount += txout.nValue;
            item.nConf = std::min(item.nConf, nDepth);
            item.txids.push_back(wtx.GetHash());
            if (mine & ISMINE_WATCH_ONLY)
                item.fIsWatchonly = true;
        }
    }

    // Reply
    UniValue ret(UniValue::VARR);
    std::map<std::string, tallyitem> label_tally;

    // Create mapAddressBook iterator
    // If we aren't filtering, go from begin() to end()
    auto start = pwallet->mapAddressBook.begin();
    auto end = pwallet->mapAddressBook.end();
    // If we are filtering, find() the applicable entry
    if (has_filtered_address) {
        start = pwallet->mapAddressBook.find(filtered_address);
        if (start != end) {
            end = std::next(start);
        }
    }

    for (auto item_it = start; item_it != end; ++item_it)
    {
        const CTxDestination& address = item_it->first;
        const std::string& label = item_it->second.name;
        auto it = mapTally.find(address);
        if (it == mapTally.end() && !fIncludeEmpty)
            continue;

        isminefilter mine = IsMine(*pwallet, address);
        if(!(mine & filter))
            continue;

        CAmount nAmount = 0;
        int nConf = std::numeric_limits<int>::max();
        bool fIsWatchonly = false;
        if (it != mapTally.end())
        {
            nAmount = (*it).second.nAmount;
            nConf = (*it).second.nConf;
            fIsWatchonly = (*it).second.fIsWatchonly;
        }

        if (by_label)
        {
            tallyitem& _item = label_tally[label];
            _item.nAmount += nAmount;
            _item.nConf = std::min(_item.nConf, nConf);
            _item.fIsWatchonly = fIsWatchonly;
        }
        else
        {
            UniValue obj(UniValue::VOBJ);
            if(fIsWatchonly)
                obj.pushKV("involvesWatchonly", true);
            obj.pushKV("address",       EncodeDestination(address));
            obj.pushKV("amount",        ValueFromAmount(nAmount));
            obj.pushKV("confirmations", (nConf == std::numeric_limits<int>::max() ? 0 : nConf));
            obj.pushKV("label", label);
            UniValue transactions(UniValue::VARR);
            if (it != mapTally.end())
            {
                for (const uint256& _item : (*it).second.txids)
                {
                    transactions.push_back(_item.GetHex());
                }
            }
            obj.pushKV("txids", transactions);
            ret.push_back(obj);
        }
    }

    if (by_label)
    {
        for (const auto& entry : label_tally)
        {
            CAmount nAmount = entry.second.nAmount;
            int nConf = entry.second.nConf;
            UniValue obj(UniValue::VOBJ);
            if (entry.second.fIsWatchonly)
                obj.pushKV("involvesWatchonly", true);
            obj.pushKV("amount",        ValueFromAmount(nAmount));
            obj.pushKV("confirmations", (nConf == std::numeric_limits<int>::max() ? 0 : nConf));
            obj.pushKV("label",         entry.first);
            ret.push_back(obj);
        }
    }

    return ret;
}

static UniValue listreceivedbyaddress(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() > 5)
        throw std::runtime_error(
            RPCHelpMan{"listreceivedbyaddress",
                "\nList balances by receiving address.\n",
                {
                    {"minconf", RPCArg::Type::NUM, /* default */ "1", "The minimum number of confirmations before payments are included."},
                    {"addlocked", RPCArg::Type::BOOL, /* default */ "false", "Whether to include transactions locked via InstantSend."},
                    {"include_empty", RPCArg::Type::BOOL, /* default */ "false", "Whether to include addresses that haven't received any payments."},
                    {"include_watchonly", RPCArg::Type::BOOL, /* default */ "false", "Whether to include watch-only addresses (see 'importaddress')."},
                    {"address_filter", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG, "If present, only return information on this address."},
                },
                RPCResult{
            "[\n"
            "  {\n"
            "    \"involvesWatchonly\" : true,        (bool) Only returned if imported addresses were involved in transaction\n"
            "    \"address\" : \"receivingaddress\",    (string) The receiving address\n"
            "    \"amount\" : x.xxx,                  (numeric) The total amount in " + CURRENCY_UNIT + " received by the address\n"
            "    \"confirmations\" : n                (numeric) The number of confirmations of the most recent transaction included.\n"
            "                                                 If 'addlocked' is true, the number of confirmations can be less than\n"
            "                                                 configured for transactions locked via InstantSend\n"
            "    \"label\" : \"label\",               (string) The label of the receiving address. The default label is \"\".\n"
            "    \"txids\": [\n"
            "       \"txid\",                         (string) The ids of transactions received with the address \n"
            "       ...\n"
            "    ]\n"
            "  }\n"
            "  ,...\n"
            "]\n"
                },
                RPCExamples{
                    HelpExampleCli("listreceivedbyaddress", "")
            + HelpExampleCli("listreceivedbyaddress", "6 false true")
            + HelpExampleRpc("listreceivedbyaddress", "6, false, true, true")
            + HelpExampleRpc("listreceivedbyaddress", "6, false, true, true, \"XbtdLrTsrPDhGy1wXtwKYoBpuKovE3JeBK\"")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    return ListReceived(*locked_chain, pwallet, request.params, false);
}

static UniValue listreceivedbylabel(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() > 4)
        throw std::runtime_error(
            RPCHelpMan{"listreceivedbylabel",
                "\nList received transactions by label.\n",
                {
                    {"minconf", RPCArg::Type::NUM, /* default */ "1", "The minimum number of confirmations before payments are included."},
                    {"addlocked", RPCArg::Type::BOOL, /* default */ "false", "Whether to include transactions locked via InstantSend."},
                    {"include_empty", RPCArg::Type::BOOL, /* default */ "false", "Whether to include labels that haven't received any payments."},
                    {"include_watchonly", RPCArg::Type::BOOL, /* default */ "false", "Whether to include watch-only addresses (see 'importaddress')."},
                },
                RPCResult{
            "[\n"
            "  {\n"
            "    \"involvesWatchonly\" : true,   (bool) Only returned if imported addresses were involved in transaction\n"
            "    \"amount\" : x.xxx,             (numeric) The total amount received by addresses with this label\n"
            "    \"confirmations\" : n           (numeric) The number of blockchain confirmations of the most recent transaction included\n"
            "    \"label\" : \"label\"             (string) The label of the receiving address. The default label is \"\".\n"
            "  }\n"
            "  ,...\n"
            "]\n"
                },
                RPCExamples{
                    HelpExampleCli("listreceivedbylabel", "")
            + HelpExampleCli("listreceivedbylabel", "6 true")
            + HelpExampleRpc("listreceivedbylabel", "6, true, true")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    return ListReceived(*locked_chain, pwallet, request.params, true);
}

static void MaybePushAddress(UniValue & entry, const CTxDestination &dest)
{
    if (IsValidDestination(dest)) {
        entry.pushKV("address", EncodeDestination(dest));
    }
}

/**
 * List transactions based on the given criteria.
 *
 * @param  pwallet        The wallet.
 * @param  wtx            The wallet transaction.
 * @param  nMinDepth      The minimum confirmation depth.
 * @param  fLong          Whether to include the JSON version of the transaction.
 * @param  ret            The UniValue into which the result is stored.
 * @param  filter_ismine  The "is mine" filter flags.
 * @param  filter_label   Optional label string to filter incoming transactions.
 */
static void ListTransactions(interfaces::Chain::Lock& locked_chain, CWallet* const pwallet, const CWalletTx& wtx, int nMinDepth, bool fLong, UniValue& ret, const isminefilter& filter_ismine, const std::string* filter_label) EXCLUSIVE_LOCKS_REQUIRED(pwallet->cs_wallet)
{
    CAmount nFee;
    std::list<COutputEntry> listReceived;
    std::list<COutputEntry> listSent;

    wtx.GetAmounts(listReceived, listSent, nFee, filter_ismine);

    bool involvesWatchonly = wtx.IsFromMe(ISMINE_WATCH_ONLY);

    // Sent
    if (!filter_label)
    {
        for (const COutputEntry& s : listSent)
        {
            UniValue entry(UniValue::VOBJ);
            if (involvesWatchonly || (::IsMine(*pwallet, s.destination) & ISMINE_WATCH_ONLY)) {
                entry.pushKV("involvesWatchonly", true);
            }
            MaybePushAddress(entry, s.destination);
            std::map<std::string, std::string>::const_iterator it = wtx.mapValue.find("DS");
            entry.pushKV("category", (it != wtx.mapValue.end() && it->second == "1") ? "coinjoin" : "send");
            entry.pushKV("amount", ValueFromAmount(-s.amount));
            if (pwallet->mapAddressBook.count(s.destination)) {
                entry.pushKV("label", pwallet->mapAddressBook[s.destination].name);
            }
            entry.pushKV("vout", s.vout);
            entry.pushKV("fee", ValueFromAmount(-nFee));
            if (fLong)
                WalletTxToJSON(pwallet->chain(), locked_chain, wtx, entry);
            entry.pushKV("abandoned", wtx.isAbandoned());
            ret.push_back(entry);
        }
    }

    // Received
    if (listReceived.size() > 0 && ((wtx.GetDepthInMainChain(locked_chain) >= nMinDepth) || wtx.IsLockedByInstantSend()))
    {
        for (const COutputEntry& r : listReceived)
        {
            std::string label;
            if (pwallet->mapAddressBook.count(r.destination)) {
                label = pwallet->mapAddressBook[r.destination].name;
            }
            if (filter_label && label != *filter_label) {
                continue;
            }
            UniValue entry(UniValue::VOBJ);
            if (involvesWatchonly || (::IsMine(*pwallet, r.destination) & ISMINE_WATCH_ONLY)) {
                entry.pushKV("involvesWatchonly", true);
            }
            MaybePushAddress(entry, r.destination);
            if (wtx.IsCoinBase())
            {
                if (wtx.GetDepthInMainChain(locked_chain) < 1)
                    entry.pushKV("category", "orphan");
                else if (wtx.IsImmatureCoinBase(locked_chain))
                    entry.pushKV("category", "immature");
                else
                    entry.pushKV("category", "generate");
            }
            else
            {
                entry.pushKV("category", "receive");
            }
            entry.pushKV("amount", ValueFromAmount(r.amount));
            if (pwallet->mapAddressBook.count(r.destination)) {
                entry.pushKV("label", label);
            }
            entry.pushKV("vout", r.vout);
            if (fLong)
                WalletTxToJSON(pwallet->chain(), locked_chain, wtx, entry);
            ret.push_back(entry);
        }
    }
}

static UniValue listtransactions(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() > 4)
        throw std::runtime_error(
            RPCHelpMan{"listtransactions",
                "\nIf a label name is provided, this will return only incoming transactions paying to addresses with the specified label.\n"
                "\nReturns up to 'count' most recent transactions skipping the first 'from' transactions.\n",
                {
                    {"label", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG, "If set, should be a valid label name to return only incoming transactions\n"
            "              with the specified label, or \"*\" to disable filtering and return all transactions."},
                    {"count", RPCArg::Type::NUM, /* default */ "10", "The number of transactions to return"},
                    {"skip", RPCArg::Type::NUM, /* default */ "0", "The number of transactions to skip"},
                    {"include_watchonly", RPCArg::Type::BOOL, /* default */ "false", "Include transactions to watch-only addresses (see 'importaddress')"},
                },
                RPCResult{
            "[\n"
            "  {\n"
            "    \"address\":\"address\",    (string) The dash address of the transaction. Not present for \n"
            "                                                move transactions (category = move).\n"
            "    \"category\":\"send|receive|move\", (string) The transaction category. 'move' is a local (off blockchain)\n"
            "                                                transaction between accounts, and not associated with an address,\n"
            "                                                transaction id or block. 'send' and 'receive' transactions are \n"
            "                                                associated with an address, transaction id and block details\n"
            "    \"amount\": x.xxx,          (numeric) The amount in " + CURRENCY_UNIT + ". This is negative for the 'send' category, and for the\n"
            "                                         'move' category for moves outbound. It is positive for the 'receive' category,\n"
            "                                         and for the 'move' category for inbound funds.\n"
            "    \"label\": \"label\",       (string) A comment for the address/transaction, if any\n"
            "    \"vout\": n,                (numeric) the vout value\n"
            "    \"fee\": x.xxx,             (numeric) The amount of the fee in " + CURRENCY_UNIT + ". This is negative and only available for the \n"
            "                                         'send' category of transactions.\n"
            "    \"confirmations\": n,       (numeric) The number of blockchain confirmations for the transaction. Available for 'send' and \n"
            "                                         'receive' category of transactions. Negative confirmations indicate the\n"
            "                                         transaction conflicts with the block chain\n"
            "    \"instantlock\" : true|false, (bool) Current transaction lock state. Available for 'send' and 'receive' category of transactions\n"
            "    \"instantlock_internal\" : true|false, (bool) Current internal transaction lock state. Available for 'send' and 'receive' category of transactions\n"
            "    \"chainlock\" : true|false, (bool) The state of the corresponding block chainlock\n"
            "    \"trusted\": xxx,           (bool) Whether we consider the outputs of this unconfirmed transaction safe to spend.\n"
            "    \"blockhash\": \"hashvalue\", (string) The block hash containing the transaction. Available for 'send' and 'receive'\n"
            "                                          category of transactions.\n"
            "    \"blockindex\": n,          (numeric) The index of the transaction in the block that includes it. Available for 'send' and 'receive'\n"
            "                                          category of transactions.\n"
            "    \"blocktime\": xxx,         (numeric) The block time in seconds since epoch (1 Jan 1970 GMT).\n"
            "    \"txid\": \"transactionid\",  (string) The transaction id. Available for 'send' and 'receive' category of transactions.\n"
            "    \"time\": xxx,              (numeric) The transaction time in seconds since epoch (midnight Jan 1 1970 GMT).\n"
            "    \"timereceived\": xxx,      (numeric) The time received in seconds since epoch (midnight Jan 1 1970 GMT). Available \n"
            "                                          for 'send' and 'receive' category of transactions.\n"
            "    \"comment\": \"...\",         (string) If a comment is associated with the transaction.\n"
            "    \"abandoned\": xxx          (bool) 'true' if the transaction has been abandoned (inputs are respendable). Only available for the \n"
            "                                         'send' category of transactions.\n"
            "  }\n"
            "]\n"
                },
                RPCExamples{
            "\nList the most recent 10 transactions in the systems\n"
            + HelpExampleCli("listtransactions", "") +
            "\nList transactions 100 to 120\n"
            + HelpExampleCli("listtransactions", "\"\" 20 100") +
            "\nAs a json rpc call\n"
            + HelpExampleRpc("listtransactions", "\"\", 20, 100")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    const std::string* filter_label = nullptr;
    if (!request.params[0].isNull() && request.params[0].get_str() != "*") {
        filter_label = &request.params[0].get_str();
        if (filter_label->empty()) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Label argument must be a valid label name or \"*\".");
        }
    }
    int nCount = 10;
    if (!request.params[1].isNull())
        nCount = request.params[1].get_int();
    int nFrom = 0;
    if (!request.params[2].isNull())
        nFrom = request.params[2].get_int();
    isminefilter filter = ISMINE_SPENDABLE;
    if(!request.params[3].isNull())
        if(request.params[3].get_bool())
            filter = filter | ISMINE_WATCH_ONLY;

    if (nCount < 0)
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Negative count");
    if (nFrom < 0)
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Negative from");

    UniValue ret(UniValue::VARR);

    {
        auto locked_chain = pwallet->chain().lock();
        LOCK(pwallet->cs_wallet);

        const CWallet::TxItems & txOrdered = pwallet->wtxOrdered;

        // iterate backwards until we have nCount items to return:
        for (CWallet::TxItems::const_reverse_iterator it = txOrdered.rbegin(); it != txOrdered.rend(); ++it)
        {
            CWalletTx *const pwtx = (*it).second;
            ListTransactions(*locked_chain, pwallet, *pwtx, 0, true, ret, filter, filter_label);
            if ((int)ret.size() >= (nCount+nFrom)) break;
        }
    }

    // ret is newest to oldest

    if (nFrom > (int)ret.size())
        nFrom = ret.size();
    if ((nFrom + nCount) > (int)ret.size())
        nCount = ret.size() - nFrom;

    const std::vector<UniValue>& txs = ret.getValues();
    UniValue result{UniValue::VARR};
    result.push_backV({ txs.rend() - nFrom - nCount, txs.rend() - nFrom }); // Return oldest to newest
    return result;
}

static UniValue listsinceblock(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() > 4)
        throw std::runtime_error(
            RPCHelpMan{"listsinceblock",
                "\nGet all transactions in blocks since block [blockhash], or all transactions if omitted.\n"
                "If \"blockhash\" is no longer a part of the main chain, transactions from the fork point onward are included.\n"
                "Additionally, if include_removed is set, transactions affecting the wallet which were removed are returned in the \"removed\" array.\n",
                {
                    {"blockhash", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG, "If set, the block hash to list transactions since, otherwise list all transactions."},
                    {"target_confirmations", RPCArg::Type::NUM, /* default */ "1", "Return the nth block hash from the main chain. e.g. 1 would mean the best block hash. Note: this is not used as a filter, but only affects [lastblock] in the return value"},
                    {"include_watchonly", RPCArg::Type::BOOL, /* default */ "false", "Include transactions to watch-only addresses (see 'importaddress')"},
                    {"include_removed", RPCArg::Type::BOOL, /* default */ "true", "Show transactions that were removed due to a reorg in the \"removed\" array\n"
            "                                                           (not guaranteed to work on pruned nodes)"},
                },
                RPCResult{
            "{\n"
            "  \"transactions\": [\n"
            "    \"address\":\"address\",    (string) The dash address of the transaction. Not present for move transactions (category = move).\n"
            "    \"category\":\"send|receive\",  (string) The transaction category. 'send' has negative amounts, 'receive' has positive amounts.\n"
            "    \"amount\": x.xxx,          (numeric) The amount in " + CURRENCY_UNIT + ". This is negative for the 'send' category, and for the 'move' category for moves \n"
            "                                          outbound. It is positive for the 'receive' category, and for the 'move' category for inbound funds.\n"
            "    \"vout\" : n,               (numeric) the vout value\n"
            "    \"fee\": x.xxx,             (numeric) The amount of the fee in " + CURRENCY_UNIT + ". This is negative and only available for the 'send' category of transactions.\n"
            "    \"confirmations\" : n,      (numeric) The number of blockchain confirmations for the transaction. Available for 'send' and 'receive' category of transactions.\n"
            "                                          When it's < 0, it means the transaction conflicted that many blocks ago.\n"
            "    \"instantlock\" : true|false, (bool) Current transaction lock state. Available for 'send' and 'receive' category of transactions\n"
            "    \"instantlock_internal\" : true|false, (bool) Current internal transaction lock state. Available for 'send' and 'receive' category of transactions\n"
            "    \"chainlock\" : true|false, (bool) The state of the corresponding block chainlock\n"
            "    \"blockhash\": \"hashvalue\", (string) The block hash containing the transaction. Available for 'send' and 'receive' category of transactions.\n"
            "    \"blockindex\": n,          (numeric) The index of the transaction in the block that includes it. Available for 'send' and 'receive' category of transactions.\n"
            "    \"blocktime\": xxx,         (numeric) The block time in seconds since epoch (1 Jan 1970 GMT).\n"
            "    \"txid\": \"transactionid\",  (string) The transaction id. Available for 'send' and 'receive' category of transactions.\n"
            "    \"time\": xxx,              (numeric) The transaction time in seconds since epoch (Jan 1 1970 GMT).\n"
            "    \"timereceived\": xxx,      (numeric) The time received in seconds since epoch (Jan 1 1970 GMT). Available for 'send' and 'receive' category of transactions.\n"
            "    \"abandoned\": xxx,         (bool) 'true' if the transaction has been abandoned (inputs are respendable). Only available for the 'send' category of transactions.\n"
            "    \"comment\": \"...\",         (string) If a comment is associated with the transaction.\n"
            "    \"label\" : \"label\"         (string) A comment for the address/transaction, if any\n"
            "    \"to\": \"...\",              (string) If a comment to is associated with the transaction.\n"
            "  ],\n"
            "  \"removed\": [\n"
            "    <structure is the same as \"transactions\" above, only present if include_removed=true>\n"
            "    Note: transactions that were re-added in the active chain will appear as-is in this array, and may thus have a positive confirmation count.\n"
            "  ],\n"
            "  \"lastblock\": \"lastblockhash\"  (string) The hash of the block (target_confirmations-1) from the best block on the main chain. This is typically used to feed back into listsinceblock the next time you call it. So you would generally use a target_confirmations of say 6, so you will be continually re-notified of transactions until they've reached 6 confirmations plus any new ones\n"
            "}\n"
                },
                RPCExamples{
                    HelpExampleCli("listsinceblock", "")
            + HelpExampleCli("listsinceblock", "\"000000000000000bacf66f7497b7dc45ef753ee9a7d38571037cdb1a57f663ad\" 6")
            + HelpExampleRpc("listsinceblock", "\"000000000000000bacf66f7497b7dc45ef753ee9a7d38571037cdb1a57f663ad\", 6")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LockAnnotation lock(::cs_main);
    LOCK(pwallet->cs_wallet);

    Optional<int> height;    // Height of the specified block or the common ancestor, if the block provided was in a deactivated chain.
    Optional<int> altheight; // Height of the specified block, even if it's in a deactivated chain.
    int target_confirms = 1;
    isminefilter filter = ISMINE_SPENDABLE;

    uint256 blockId;
    if (!request.params[0].isNull() && !request.params[0].get_str().empty()) {
        blockId.SetHex(request.params[0].get_str());
        height = locked_chain->findFork(blockId, &altheight);

        if (!height) {
            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
        }
    }

    if (!request.params[1].isNull()) {
        target_confirms = request.params[1].get_int();

        if (target_confirms < 1) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter");
        }
    }

    if (!request.params[2].isNull() && request.params[2].get_bool()) {
        filter = filter | ISMINE_WATCH_ONLY;
    }

    bool include_removed = (request.params[3].isNull() || request.params[3].get_bool());

    const Optional<int> tip_height = locked_chain->getHeight();
    int depth = tip_height && height ? (1 + *tip_height - *height) : -1;

    UniValue transactions(UniValue::VARR);

    for (const std::pair<const uint256, CWalletTx>& pairWtx : pwallet->mapWallet) {
        CWalletTx tx = pairWtx.second;

        if (depth == -1 || tx.GetDepthInMainChain(*locked_chain) < depth) {
            ListTransactions(*locked_chain, pwallet, tx, 0, true, transactions, filter, nullptr /* filter_label */);
        }
    }

    // when a reorg'd block is requested, we also list any relevant transactions
    // in the blocks of the chain that was detached
    UniValue removed(UniValue::VARR);
    while (include_removed && altheight && *altheight > *height) {
        CBlock block;
        if (!pwallet->chain().findBlock(blockId, &block) || block.IsNull()) {
            throw JSONRPCError(RPC_INTERNAL_ERROR, "Can't read block from disk");
        }
        for (const CTransactionRef& tx : block.vtx) {
            auto it = pwallet->mapWallet.find(tx->GetHash());
            if (it != pwallet->mapWallet.end()) {
                // We want all transactions regardless of confirmation count to appear here,
                // even negative confirmation ones, hence the big negative.
                ListTransactions(*locked_chain, pwallet, it->second, -100000000, true, removed, filter, nullptr /* filter_label */);
            }
        }
        blockId = block.hashPrevBlock;
        --*altheight;
    }

    int last_height = tip_height ? *tip_height + 1 - target_confirms : -1;
    uint256 lastblock = last_height >= 0 ? locked_chain->getBlockHash(last_height) : uint256();

    UniValue ret(UniValue::VOBJ);
    ret.pushKV("transactions", transactions);
    if (include_removed) ret.pushKV("removed", removed);
    ret.pushKV("lastblock", lastblock.GetHex());

    return ret;
}

static UniValue gettransaction(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
        throw std::runtime_error(
            RPCHelpMan{"gettransaction",
                "\nGet detailed information about in-wallet transaction <txid>\n",
                {
                    {"txid", RPCArg::Type::STR, RPCArg::Optional::NO, "The transaction id"},
                    {"include_watchonly", RPCArg::Type::BOOL, /* default */ "false", "Whether to include watch-only addresses in balance calculation and details[]"},
                },
                RPCResult{
            "{\n"
            "  \"amount\" : x.xxx,        (numeric) The transaction amount in " + CURRENCY_UNIT + "\n"
            "  \"fee\": x.xxx,            (numeric) The amount of the fee in " + CURRENCY_UNIT + ". This is negative and only available for the \n"
            "                              'send' category of transactions.\n"
            "  \"instantlock\" : true|false, (bool) Current transaction lock state\n"
            "  \"instantlock_internal\" : true|false, (bool) Current internal transaction lock state\n"
            "  \"chainlock\" : true|false, (bool) The state of the corresponding block chainlock\n"
            "  \"confirmations\" : n,     (numeric) The number of blockchain confirmations\n"
            "  \"blockhash\" : \"hash\",    (string) The block hash\n"
            "  \"blockindex\" : xx,       (numeric) The index of the transaction in the block that includes it\n"
            "  \"blocktime\" : ttt,       (numeric) The time in seconds since epoch (1 Jan 1970 GMT)\n"
            "  \"txid\" : \"transactionid\",   (string) The transaction id.\n"
            "  \"time\" : ttt,            (numeric) The transaction time in seconds since epoch (1 Jan 1970 GMT)\n"
            "  \"timereceived\" : ttt,    (numeric) The time received in seconds since epoch (1 Jan 1970 GMT)\n"
            "  \"details\" : [\n"
            "    {\n"
            "      \"address\" : \"address\",          (string) The dash address involved in the transaction\n"
            "      \"category\" : \"send|receive\",    (string) The category, either 'send' or 'receive'\n"
            "      \"amount\" : x.xxx,               (numeric) The amount in " + CURRENCY_UNIT + "\n"
            "      \"label\" : \"label\",              (string) A comment for the address/transaction, if any\n"
            "      \"vout\" : n,                     (numeric) the vout value\n"
            "      \"fee\": x.xxx,                     (numeric) The amount of the fee in " + CURRENCY_UNIT + ". This is negative and only available for the \n"
            "                                           'send' category of transactions.\n"
            "      \"abandoned\": xxx                  (bool) 'true' if the transaction has been abandoned (inputs are respendable). Only available for the \n"
            "                                           'send' category of transactions.\n"
            "    }\n"
            "    ,...\n"
            "  ],\n"
            "  \"hex\" : \"data\"                      (string) Raw data for transaction\n"
            "}\n"
                },
                RPCExamples{
                    HelpExampleCli("gettransaction", "\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\"")
            + HelpExampleCli("gettransaction", "\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\" true")
            + HelpExampleRpc("gettransaction", "\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\"")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    uint256 hash;
    hash.SetHex(request.params[0].get_str());

    isminefilter filter = ISMINE_SPENDABLE;
    if(!request.params[1].isNull())
        if(request.params[1].get_bool())
            filter = filter | ISMINE_WATCH_ONLY;

    UniValue entry(UniValue::VOBJ);
    auto it = pwallet->mapWallet.find(hash);
    if (it == pwallet->mapWallet.end()) {
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid or non-wallet transaction id");
    }
    const CWalletTx& wtx = it->second;

    CAmount nCredit = wtx.GetCredit(*locked_chain, filter);
    CAmount nDebit = wtx.GetDebit(filter);
    CAmount nNet = nCredit - nDebit;
    CAmount nFee = (wtx.IsFromMe(filter) ? wtx.tx->GetValueOut() - nDebit : 0);

    entry.pushKV("amount", ValueFromAmount(nNet - nFee));
    if (wtx.IsFromMe(filter))
        entry.pushKV("fee", ValueFromAmount(nFee));

    WalletTxToJSON(pwallet->chain(), *locked_chain, wtx, entry);

    UniValue details(UniValue::VARR);
    ListTransactions(*locked_chain, pwallet, wtx, 0, false, details, filter, nullptr /* filter_label */);
    entry.pushKV("details", details);

    std::string strHex = EncodeHexTx(*wtx.tx);
    entry.pushKV("hex", strHex);

    return entry;
}

static UniValue abandontransaction(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() != 1) {
        throw std::runtime_error(
            RPCHelpMan{"abandontransaction",
                "\nMark in-wallet transaction <txid> as abandoned\n"
                "This will mark this transaction and all its in-wallet descendants as abandoned which will allow\n"
                "for their inputs to be respent.  It can be used to replace \"stuck\" or evicted transactions.\n"
                "It only works on transactions which are not included in a block and are not currently in the mempool.\n"
                "It has no effect on transactions which are already abandoned.\n",
                {
                    {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction id"},
                },
                RPCResults{},
                RPCExamples{
                    HelpExampleCli("abandontransaction", "\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\"")
            + HelpExampleRpc("abandontransaction", "\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\"")
                },
            }.ToString());
    }

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    uint256 hash;
    hash.SetHex(request.params[0].get_str());

    if (!pwallet->mapWallet.count(hash)) {
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid or non-wallet transaction id");
    }
    if (!pwallet->AbandonTransaction(*locked_chain, hash)) {
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Transaction not eligible for abandonment");
    }

    return NullUniValue;
}


static UniValue backupwallet(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() != 1)
        throw std::runtime_error(
            RPCHelpMan{"backupwallet",
                "\nSafely copies current wallet file to destination, which can be a directory or a path with filename.\n",
                {
                    {"destination", RPCArg::Type::STR, RPCArg::Optional::NO, "The destination directory or file"},
                },
                RPCResults{},
                RPCExamples{
                    HelpExampleCli("backupwallet", "\"backup.dat\"")
            + HelpExampleRpc("backupwallet", "\"backup.dat\"")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    std::string strDest = request.params[0].get_str();
    if (!pwallet->BackupWallet(strDest)) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Error: Wallet backup failed!");
    }

    return NullUniValue;
}


static UniValue keypoolrefill(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() > 1)
        throw std::runtime_error(
            RPCHelpMan{"keypoolrefill",
                "\nFills the keypool."+
                    HelpRequiringPassphrase(pwallet) + "\n",
                {
                    {"newsize", RPCArg::Type::NUM, /* default */ itostr(DEFAULT_KEYPOOL_SIZE), "The new keypool size"},
                },
                RPCResults{},
                RPCExamples{
                    HelpExampleCli("keypoolrefill", "")
            + HelpExampleRpc("keypoolrefill", "")
                },
            }.ToString());

    if (pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Error: Private keys are disabled for this wallet");
    }

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    // 0 is interpreted by TopUpKeyPool() as the default keypool size given by -keypool
    unsigned int kpSize = 0;
    if (!request.params[0].isNull()) {
        if (request.params[0].get_int() < 0)
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected valid size.");
        kpSize = (unsigned int)request.params[0].get_int();
    }

    EnsureWalletIsUnlocked(pwallet);
    pwallet->TopUpKeyPool(kpSize);

    if (pwallet->GetKeyPoolSize() < (pwallet->IsHDEnabled() ? kpSize * 2 : kpSize)) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Error refreshing keypool.");
    }

    return NullUniValue;
}


static UniValue walletpassphrase(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 2 || request.params.size() > 3) {
        throw std::runtime_error(
            RPCHelpMan{"walletpassphrase",
                "\nStores the wallet decryption key in memory for 'timeout' seconds.\n"
                "This is needed prior to performing transactions related to private keys such as sending dashs\n"
                "\nNote:\n"
                "Issuing the walletpassphrase command while the wallet is already unlocked will set a new unlock\n"
                "time that overrides the old one.\n",
                {
                    {"passphrase", RPCArg::Type::STR, RPCArg::Optional::NO, "The wallet passphrase"},
                    {"timeout", RPCArg::Type::NUM, RPCArg::Optional::NO, "The time to keep the decryption key in seconds; capped at 100000000 (~3 years)."},
                    {"mixingonly", RPCArg::Type::BOOL, /* default */ "false", "If is true sending functions are disabled."},
                },
                RPCResults{},
                RPCExamples{
            "\nUnlock the wallet for 60 seconds\n"
            + HelpExampleCli("walletpassphrase", "\"my pass phrase\" 60") +
            "\nUnlock the wallet for 60 seconds but allow CoinJoin only\n"
            + HelpExampleCli("walletpassphrase", "\"my pass phrase\" 60 true") +
            "\nLock the wallet again (before 60 seconds)\n"
            + HelpExampleCli("walletlock", "") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("walletpassphrase", "\"my pass phrase\", 60")
                },
            }.ToString());
    }

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    if (!pwallet->IsCrypted()) {
        throw JSONRPCError(RPC_WALLET_WRONG_ENC_STATE, "Error: running with an unencrypted wallet, but walletpassphrase was called.");
    }

    // Note that the walletpassphrase is stored in request.params[0] which is not mlock()ed
    SecureString strWalletPass;
    strWalletPass.reserve(100);
    // TODO: get rid of this .c_str() by implementing SecureString::operator=(std::string)
    // Alternately, find a way to make request.params[0] mlock()'d to begin with.
    strWalletPass = request.params[0].get_str().c_str();

    // Get the timeout
    int64_t nSleepTime = request.params[1].get_int64();
    // Timeout cannot be negative, otherwise it will relock immediately
    if (nSleepTime < 0) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Timeout cannot be negative.");
    }
    // Clamp timeout
    constexpr int64_t MAX_SLEEP_TIME = 100000000; // larger values trigger a macos/libevent bug?
    if (nSleepTime > MAX_SLEEP_TIME) {
        nSleepTime = MAX_SLEEP_TIME;
    }

    bool fForMixingOnly = false;
    if (!request.params[2].isNull())
        fForMixingOnly = request.params[2].get_bool();

    if (fForMixingOnly && !pwallet->IsLocked()) {
        // Downgrading from "fuly unlocked" mode to "mixing only" one is not supported.
        // Updating unlock time when current unlock mode is not changed or when it is upgraded
        // from "mixing only" to "fuly unlocked" is ok.
        throw JSONRPCError(RPC_WALLET_ALREADY_UNLOCKED, "Error: Wallet is already fully unlocked.");
    }

    if (strWalletPass.empty()) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "passphrase can not be empty");
    }

    if (!pwallet->Unlock(strWalletPass, fForMixingOnly)) {
        throw JSONRPCError(RPC_WALLET_PASSPHRASE_INCORRECT, "Error: The wallet passphrase entered was incorrect.");
    }

    pwallet->TopUpKeyPool();

    pwallet->nRelockTime = GetTime() + nSleepTime;

    // Keep a weak pointer to the wallet so that it is possible to unload the
    // wallet before the following callback is called. If a valid shared pointer
    // is acquired in the callback then the wallet is still loaded.
    std::weak_ptr<CWallet> weak_wallet = wallet;
    RPCRunLater(strprintf("lockwallet(%s)", pwallet->GetName()), [weak_wallet] {
        if (auto shared_wallet = weak_wallet.lock()) {
            LOCK(shared_wallet->cs_wallet);
            shared_wallet->Lock();
            shared_wallet->nRelockTime = 0;
        }
    }, nSleepTime);

    return NullUniValue;
}


static UniValue walletpassphrasechange(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() != 2) {
        throw std::runtime_error(
            RPCHelpMan{"walletpassphrasechange",
                "\nChanges the wallet passphrase from 'oldpassphrase' to 'newpassphrase'.\n",
                {
                    {"oldpassphrase", RPCArg::Type::STR, RPCArg::Optional::NO, "The current passphrase"},
                    {"newpassphrase", RPCArg::Type::STR, RPCArg::Optional::NO, "The new passphrase"},
                },
                RPCResults{},
                RPCExamples{
                    HelpExampleCli("walletpassphrasechange", "\"old one\" \"new one\"")
            + HelpExampleRpc("walletpassphrasechange", "\"old one\", \"new one\"")
                },
            }.ToString());
    }

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    if (!pwallet->IsCrypted()) {
        throw JSONRPCError(RPC_WALLET_WRONG_ENC_STATE, "Error: running with an unencrypted wallet, but walletpassphrasechange was called.");
    }

    // TODO: get rid of these .c_str() calls by implementing SecureString::operator=(std::string)
    // Alternately, find a way to make request.params[0] mlock()'d to begin with.
    SecureString strOldWalletPass;
    strOldWalletPass.reserve(100);
    strOldWalletPass = request.params[0].get_str().c_str();

    SecureString strNewWalletPass;
    strNewWalletPass.reserve(100);
    strNewWalletPass = request.params[1].get_str().c_str();

    if (strOldWalletPass.empty() || strNewWalletPass.empty()) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "passphrase can not be empty");
    }

    if (!pwallet->ChangeWalletPassphrase(strOldWalletPass, strNewWalletPass)) {
        throw JSONRPCError(RPC_WALLET_PASSPHRASE_INCORRECT, "Error: The wallet passphrase entered was incorrect.");
    }

    return NullUniValue;
}


static UniValue walletlock(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() != 0) {
        throw std::runtime_error(
            RPCHelpMan{"walletlock",
                "\nRemoves the wallet encryption key from memory, locking the wallet.\n"
                "After calling this method, you will need to call walletpassphrase again\n"
                "before being able to call any methods which require the wallet to be unlocked.\n",
                {},
                RPCResults{},
                RPCExamples{
            "\nSet the passphrase for 2 minutes to perform a transaction\n"
            + HelpExampleCli("walletpassphrase", "\"my pass phrase\" 120") +
            "\nPerform a send (requires passphrase set)\n"
            + HelpExampleCli("sendtoaddress", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwG\" 1.0") +
            "\nClear the passphrase since we are done before 2 minutes is up\n"
            + HelpExampleCli("walletlock", "") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("walletlock", "")
                },
            }.ToString());
    }

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    if (!pwallet->IsCrypted()) {
        throw JSONRPCError(RPC_WALLET_WRONG_ENC_STATE, "Error: running with an unencrypted wallet, but walletlock was called.");
    }

    pwallet->Lock();
    pwallet->nRelockTime = 0;

    return NullUniValue;
}


static UniValue encryptwallet(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() != 1) {
        throw std::runtime_error(
            RPCHelpMan{"encryptwallet",
                "\nEncrypts the wallet with 'passphrase'. This is for first time encryption.\n"
                "After this, any calls that interact with private keys such as sending or signing \n"
                "will require the passphrase to be set prior the making these calls.\n"
                "Use the walletpassphrase call for this, and then walletlock call.\n"
                "If the wallet is already encrypted, use the walletpassphrasechange call.\n",
                {
                    {"passphrase", RPCArg::Type::STR, RPCArg::Optional::NO, "The pass phrase to encrypt the wallet with. It must be at least 1 character, but should be long."},
                },
                RPCResults{},
                RPCExamples{
            "\nEncrypt your wallet\n"
            + HelpExampleCli("encryptwallet", "\"my pass phrase\"") +
            "\nNow set the passphrase to use the wallet, such as for signing or sending dash\n"
            + HelpExampleCli("walletpassphrase", "\"my pass phrase\"") +
            "\nNow we can do something like sign\n"
            + HelpExampleCli("signmessage", "\"address\" \"test message\"") +
            "\nNow lock the wallet again by removing the passphrase\n"
            + HelpExampleCli("walletlock", "") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("encryptwallet", "\"my pass phrase\"")
                },
            }.ToString());
    }

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    if (pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
        throw JSONRPCError(RPC_WALLET_ENCRYPTION_FAILED, "Error: wallet does not contain private keys, nothing to encrypt.");
    }

    if (pwallet->IsCrypted()) {
        throw JSONRPCError(RPC_WALLET_WRONG_ENC_STATE, "Error: running with an encrypted wallet, but encryptwallet was called.");
    }

    // TODO: get rid of this .c_str() by implementing SecureString::operator=(std::string)
    // Alternately, find a way to make request.params[0] mlock()'d to begin with.
    SecureString strWalletPass;
    strWalletPass.reserve(100);
    strWalletPass = request.params[0].get_str().c_str();

    if (strWalletPass.empty()) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "passphrase can not be empty");
    }

    if (!pwallet->EncryptWallet(strWalletPass)) {
        throw JSONRPCError(RPC_WALLET_ENCRYPTION_FAILED, "Error: Failed to encrypt the wallet.");
    }

    return "wallet encrypted; The keypool has been flushed and a new HD seed was generated (if you are using HD). You need to make a new backup.";
}

static UniValue lockunspent(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
        throw std::runtime_error(
            RPCHelpMan{"lockunspent",
                "\nUpdates list of temporarily unspendable outputs.\n"
                "Temporarily lock (unlock=false) or unlock (unlock=true) specified transaction outputs.\n"
                "If no transaction outputs are specified when unlocking then all current locked transaction outputs are unlocked.\n"
                "A locked transaction output will not be chosen by automatic coin selection, when spending dashs.\n"
                "Locks are stored in memory only. Nodes start with zero locked outputs, and the locked output list\n"
                "is always cleared (by virtue of process exit) when a node stops or fails.\n"
                "Also see the listunspent call\n",
                {
                    {"unlock", RPCArg::Type::BOOL, RPCArg::Optional::NO, "Whether to unlock (true) or lock (false) the specified transactions"},
                    {"transactions", RPCArg::Type::ARR, /* default */ "empty array", "A json array of objects. Each object the txid (string) vout (numeric).",
                        {
                            {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
                                {
                                    {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction id"},
                                    {"vout", RPCArg::Type::NUM, RPCArg::Optional::NO, "The output number"},
                                },
                            },
                        },
                    },
                },
                RPCResult{
            "true|false    (boolean) Whether the command was successful or not\n"
                },
                RPCExamples{
            "\nList the unspent transactions\n"
            + HelpExampleCli("listunspent", "") +
            "\nLock an unspent transaction\n"
            + HelpExampleCli("lockunspent", "false \"[{\\\"txid\\\":\\\"a08e6907dbbd3d809776dbfc5d82e371b764ed838b5655e72f463568df1aadf0\\\",\\\"vout\\\":1}]\"") +
            "\nList the locked transactions\n"
            + HelpExampleCli("listlockunspent", "") +
            "\nUnlock the transaction again\n"
            + HelpExampleCli("lockunspent", "true \"[{\\\"txid\\\":\\\"a08e6907dbbd3d809776dbfc5d82e371b764ed838b5655e72f463568df1aadf0\\\",\\\"vout\\\":1}]\"") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("lockunspent", "false, \"[{\\\"txid\\\":\\\"a08e6907dbbd3d809776dbfc5d82e371b764ed838b5655e72f463568df1aadf0\\\",\\\"vout\\\":1}]\"")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    RPCTypeCheckArgument(request.params[0], UniValue::VBOOL);

    bool fUnlock = request.params[0].get_bool();

    if (request.params[1].isNull()) {
        if (fUnlock)
            pwallet->UnlockAllCoins();
        return true;
    }

    RPCTypeCheckArgument(request.params[1], UniValue::VARR);

    const UniValue& output_params = request.params[1];

    // Create and validate the COutPoints first.

    std::vector<COutPoint> outputs;
    outputs.reserve(output_params.size());

    for (unsigned int idx = 0; idx < output_params.size(); idx++) {
        const UniValue& o = output_params[idx].get_obj();

        RPCTypeCheckObj(o,
            {
                {"txid", UniValueType(UniValue::VSTR)},
                {"vout", UniValueType(UniValue::VNUM)},
            });

        const std::string& txid = find_value(o, "txid").get_str();
        if (!IsHex(txid)) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected hex txid");
        }

        const int nOutput = find_value(o, "vout").get_int();
        if (nOutput < 0) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, vout must be positive");
        }

        const COutPoint outpt(uint256S(txid), nOutput);

        const auto it = pwallet->mapWallet.find(outpt.hash);
        if (it == pwallet->mapWallet.end()) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, unknown transaction");
        }

        const CWalletTx& trans = it->second;

        if (outpt.n >= trans.tx->vout.size()) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, vout index out of bounds");
        }

        if (pwallet->IsSpent(*locked_chain, outpt.hash, outpt.n)) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected unspent output");
        }

        const bool is_locked = pwallet->IsLockedCoin(outpt.hash, outpt.n);

        if (fUnlock && !is_locked) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected locked output");
        }

        if (!fUnlock && is_locked) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, output already locked");
        }

        outputs.push_back(outpt);
    }

    // Atomically set (un)locked status for the outputs.
    for (const COutPoint& outpt : outputs) {
        if (fUnlock) pwallet->UnlockCoin(outpt);
        else pwallet->LockCoin(outpt);
    }

    return true;
}

static UniValue listlockunspent(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() > 0)
        throw std::runtime_error(
            RPCHelpMan{"listlockunspent",
                "\nReturns list of temporarily unspendable outputs.\n"
                "See the lockunspent call to lock and unlock transactions for spending.\n",
                {},
                RPCResult{
            "[\n"
            "  {\n"
            "    \"txid\" : \"transactionid\",     (string) The transaction id locked\n"
            "    \"vout\" : n                      (numeric) The vout value\n"
            "  }\n"
            "  ,...\n"
            "]\n"
                },
                RPCExamples{
            "\nList the unspent transactions\n"
            + HelpExampleCli("listunspent", "") +
            "\nLock an unspent transaction\n"
            + HelpExampleCli("lockunspent", "false \"[{\\\"txid\\\":\\\"a08e6907dbbd3d809776dbfc5d82e371b764ed838b5655e72f463568df1aadf0\\\",\\\"vout\\\":1}]\"") +
            "\nList the locked transactions\n"
            + HelpExampleCli("listlockunspent", "") +
            "\nUnlock the transaction again\n"
            + HelpExampleCli("lockunspent", "true \"[{\\\"txid\\\":\\\"a08e6907dbbd3d809776dbfc5d82e371b764ed838b5655e72f463568df1aadf0\\\",\\\"vout\\\":1}]\"") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("listlockunspent", "")
                },
            }.ToString());

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    std::vector<COutPoint> vOutpts;
    pwallet->ListLockedCoins(vOutpts);

    UniValue ret(UniValue::VARR);

    for (const COutPoint& outpt : vOutpts) {
        UniValue o(UniValue::VOBJ);

        o.pushKV("txid", outpt.hash.GetHex());
        o.pushKV("vout", (int)outpt.n);
        ret.push_back(o);
    }

    return ret;
}

static UniValue settxfee(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 1 || request.params.size() > 1) {
        throw std::runtime_error(
            RPCHelpMan{"settxfee",
                "\nSet the transaction fee per kB for this wallet. Overrides the global -paytxfee command line parameter.\n",
                {
                    {"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "The transaction fee in " + CURRENCY_UNIT + "/kB"},
                },
                RPCResult{
            "true|false        (boolean) Returns true if successful\n"
                },
                RPCExamples{
                    HelpExampleCli("settxfee", "0.00001")
            + HelpExampleRpc("settxfee", "0.00001")
                },
            }.ToString());
    }

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    CAmount nAmount = AmountFromValue(request.params[0]);
    CFeeRate tx_fee_rate(nAmount, 1000);
    if (tx_fee_rate == 0) {
        // automatic selection
    } else if (tx_fee_rate < pwallet->chain().relayMinFee()) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("txfee cannot be less than min relay tx fee (%s)", pwallet->chain().relayMinFee().ToString()));
    } else if (tx_fee_rate < pwallet->m_min_fee) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("txfee cannot be less than wallet min fee (%s)", pwallet->m_min_fee.ToString()));
    }

    pwallet->m_pay_tx_fee = tx_fee_rate;
    return true;
}

static UniValue setcoinjoinrounds(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();
    if (!EnsureWalletIsAvailable(pwallet, request.fHelp))
        return NullUniValue;

    if (request.fHelp || request.params.size() != 1)
        throw std::runtime_error(
            RPCHelpMan{"setcoinjoinrounds",
                "\nSet the number of rounds for CoinJoin.\n",
                {
                    {"rounds", RPCArg::Type::NUM, RPCArg::Optional::NO,
                        "The default number of rounds is " + std::to_string(DEFAULT_COINJOIN_ROUNDS) +
                        " Cannot be more than " + std::to_string(MAX_COINJOIN_ROUNDS) + " nor less than " + std::to_string(MIN_COINJOIN_ROUNDS)},
                },
                RPCResults{},
                RPCExamples{
                    HelpExampleCli("setcoinjoinrounds", "4")
            + HelpExampleRpc("setcoinjoinrounds", "16")
                },
            }.ToString());

    int nRounds = request.params[0].get_int();

    if (nRounds > MAX_COINJOIN_ROUNDS || nRounds < MIN_COINJOIN_ROUNDS)
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid number of rounds");

    CCoinJoinClientOptions::SetRounds(nRounds);

    return NullUniValue;
}

static UniValue setcoinjoinamount(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();
    if (!EnsureWalletIsAvailable(pwallet, request.fHelp))
        return NullUniValue;

    if (request.fHelp || request.params.size() != 1)
        throw std::runtime_error(
            RPCHelpMan{"setcoinjoinamount",
                "\nSet the goal amount in " + CURRENCY_UNIT + " for CoinJoin.\n",
                {
                    {"amount", RPCArg::Type::NUM, RPCArg::Optional::NO,
                        "The default amount is " + std::to_string(DEFAULT_COINJOIN_AMOUNT) +
                        " Cannot be more than " + std::to_string(MAX_COINJOIN_AMOUNT) + " nor less than " + std::to_string(MIN_COINJOIN_AMOUNT)},
                },
                RPCResults{},
                RPCExamples{
                    HelpExampleCli("setcoinjoinamount", "500")
            + HelpExampleRpc("setcoinjoinamount", "208")
                },
            }.ToString());

    int nAmount = request.params[0].get_int();

    if (nAmount > MAX_COINJOIN_AMOUNT || nAmount < MIN_COINJOIN_AMOUNT)
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid amount of " + CURRENCY_UNIT + " as mixing goal amount");

    CCoinJoinClientOptions::SetAmount(nAmount);

    return NullUniValue;
}

static UniValue getwalletinfo(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();
    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() != 0)
        throw std::runtime_error(
            RPCHelpMan{"getwalletinfo",
                "Returns an object containing various wallet state info.\n",
                {},
                RPCResult{
            "{\n"
            "  \"walletname\": xxxxx,               (string) the wallet name\n"
            "  \"walletversion\": xxxxx,            (numeric) the wallet version\n"
            "  \"balance\": xxxxxxx,                (numeric) the total confirmed balance of the wallet in " + CURRENCY_UNIT + "\n"
            "  \"coinjoin_balance\": xxxxxx,        (numeric) the CoinJoin balance in " + CURRENCY_UNIT + "\n"
            "  \"unconfirmed_balance\": xxx,        (numeric) the total unconfirmed balance of the wallet in " + CURRENCY_UNIT + "\n"
            "  \"immature_balance\": xxxxxx,        (numeric) the total immature balance of the wallet in " + CURRENCY_UNIT + "\n"
            "  \"txcount\": xxxxxxx,                (numeric) the total number of transactions in the wallet\n"
            "  \"timefirstkey\": xxxxxx,            (numeric) the timestamp (seconds since Unix epoch) of the oldest known key in the wallet\n"
            "  \"keypoololdest\": xxxxxx,           (numeric) the timestamp (seconds since Unix epoch) of the oldest pre-generated key in the key pool\n"
            "  \"keypoolsize\": xxxx,               (numeric) how many new keys are pre-generated (only counts external keys)\n"
            "  \"keypoolsize_hd_internal\": xxxx,   (numeric) how many new keys are pre-generated for internal use (used for change outputs, only appears if the wallet is using this feature, otherwise external keys are used)\n"
            "  \"keys_left\": xxxx,                 (numeric) how many new keys are left since last automatic backup\n"
            "  \"unlocked_until\": ttt,             (numeric) the timestamp in seconds since epoch (midnight Jan 1 1970 GMT) that the wallet is unlocked for transfers, or 0 if the wallet is locked\n"
            "  \"paytxfee\": x.xxxx,                (numeric) the transaction fee configuration, set in " + CURRENCY_UNIT + "/kB\n"
            "  \"hdchainid\": \"<hash>\",             (string) the ID of the HD chain\n"
            "  \"hdaccountcount\": xxx,             (numeric) how many accounts of the HD chain are in this wallet\n"
            "    [\n"
            "      {\n"
            "      \"hdaccountindex\": xxx,         (numeric) the index of the account\n"
            "      \"hdexternalkeyindex\": xxxx,    (numeric) current external childkey index\n"
            "      \"hdinternalkeyindex\": xxxx,    (numeric) current internal childkey index\n"
            "      }\n"
            "      ,...\n"
            "    ]\n"
            "  \"scanning\":                        (json object) current scanning details, or false if no scan is in progress\n"
            "    {\n"
            "      \"duration\" : xxxx              (numeric) elapsed seconds since scan start\n"
            "      \"progress\" : x.xxxx,           (numeric) scanning progress percentage [0.0, 1.0]\n"
            "    }\n"
            "  \"private_keys_enabled\": true|false (boolean) false if privatekeys are disabled for this wallet (enforced watch-only wallet)\n"
            "}\n"
                },
                RPCExamples{
                    HelpExampleCli("getwalletinfo", "")
            + HelpExampleRpc("getwalletinfo", "")
                },
            }.ToString());

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    CHDChain hdChainCurrent;
    bool fHDEnabled = pwallet->GetHDChain(hdChainCurrent);
    UniValue obj(UniValue::VOBJ);

    const auto bal = pwallet->GetBalance();
    obj.pushKV("walletname", pwallet->GetName());
    obj.pushKV("walletversion", pwallet->GetVersion());
    obj.pushKV("balance", ValueFromAmount(bal.m_mine_trusted));
    obj.pushKV("coinjoin_balance",       ValueFromAmount(bal.m_anonymized));
    obj.pushKV("unconfirmed_balance", ValueFromAmount(bal.m_mine_untrusted_pending));
    obj.pushKV("immature_balance", ValueFromAmount(bal.m_mine_immature));
    obj.pushKV("txcount",       (int)pwallet->mapWallet.size());
    obj.pushKV("timefirstkey", pwallet->GetTimeFirstKey());
    obj.pushKV("keypoololdest", pwallet->GetOldestKeyPoolTime());
    obj.pushKV("keypoolsize",   (int64_t)pwallet->KeypoolCountExternalKeys());
    if (fHDEnabled) {
        obj.pushKV("keypoolsize_hd_internal",   (int64_t)(pwallet->KeypoolCountInternalKeys()));
    }
    obj.pushKV("keys_left",     pwallet->nKeysLeftSinceAutoBackup);
    if (pwallet->IsCrypted())
        obj.pushKV("unlocked_until", pwallet->nRelockTime);
    obj.pushKV("paytxfee",      ValueFromAmount(pwallet->m_pay_tx_fee.GetFeePerK()));
    if (fHDEnabled) {
        obj.pushKV("hdchainid", hdChainCurrent.GetID().GetHex());
        obj.pushKV("hdaccountcount", (int64_t)hdChainCurrent.CountAccounts());
        UniValue accounts(UniValue::VARR);
        for (size_t i = 0; i < hdChainCurrent.CountAccounts(); ++i)
        {
            CHDAccount acc;
            UniValue account(UniValue::VOBJ);
            account.pushKV("hdaccountindex", (int64_t)i);
            if(hdChainCurrent.GetAccount(i, acc)) {
                account.pushKV("hdexternalkeyindex", (int64_t)acc.nExternalChainCounter);
                account.pushKV("hdinternalkeyindex", (int64_t)acc.nInternalChainCounter);
            } else {
                account.pushKV("error", strprintf("account %d is missing", i));
            }
            accounts.push_back(account);
        }
        obj.pushKV("hdaccounts", accounts);
    }
    if (pwallet->IsScanning()) {
        UniValue scanning(UniValue::VOBJ);
        scanning.pushKV("duration", pwallet->ScanningDuration() / 1000);
        scanning.pushKV("progress", pwallet->ScanningProgress());
        obj.pushKV("scanning", scanning);
    } else {
        obj.pushKV("scanning", false);
    }
    obj.pushKV("private_keys_enabled", !pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS));
    return obj;
}

static UniValue listwalletdir(const JSONRPCRequest& request)
{
    if (request.fHelp || request.params.size() != 0) {
        throw std::runtime_error(
            RPCHelpMan{"listwalletdir",
                "Returns a list of wallets in the wallet directory.\n",
                {},
                RPCResult{
            "{\n"
            "  \"wallets\" : [                (json array of objects)\n"
            "    {\n"
            "      \"name\" : \"name\"          (string) The wallet name\n"
            "    }\n"
            "    ,...\n"
            "  ]\n"
            "}\n"
                },
                RPCExamples{
                    HelpExampleCli("listwalletdir", "")
            + HelpExampleRpc("listwalletdir", "")
                },
            }.ToString());
    }

    UniValue wallets(UniValue::VARR);
    for (const auto& path : ListWalletDir()) {
        UniValue wallet(UniValue::VOBJ);
        wallet.pushKV("name", path.string());
        wallets.push_back(wallet);
    }

    UniValue result(UniValue::VOBJ);
    result.pushKV("wallets", wallets);
    return result;
}

static UniValue listwallets(const JSONRPCRequest& request)
{
    if (request.fHelp || request.params.size() != 0)
        throw std::runtime_error(
            RPCHelpMan{"listwallets",
                "Returns a list of currently loaded wallets.\n"
                "For full information on the wallet, use \"getwalletinfo\"\n",
                {},
                RPCResult{
            "[                         (json array of strings)\n"
            "  \"walletname\"            (string) the wallet name\n"
            "   ...\n"
            "]\n"
                },
                RPCExamples{
                    HelpExampleCli("listwallets", "")
            + HelpExampleRpc("listwallets", "")
                },
            }.ToString());

    UniValue obj(UniValue::VARR);

    for (const std::shared_ptr<CWallet>& wallet : GetWallets()) {
        if (!EnsureWalletIsAvailable(wallet.get(), request.fHelp)) {
            return NullUniValue;
        }

        LOCK(wallet->cs_wallet);

        obj.push_back(wallet->GetName());
    }

    return obj;
}

static UniValue upgradetohd(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp)
        throw std::runtime_error(
            RPCHelpMan{"upgradetohd",
                "\nUpgrades non-HD wallets to HD.\n"
                "\nWarning: You will need to make a new backup of your wallet after setting the HD wallet mnemonic.\n",
                {
                    {"mnemonic", RPCArg::Type::STR, /* default */ "", "Mnemonic as defined in BIP39 to use for the new HD wallet. Use an empty string \"\" to generate a new random mnemonic."},
                    {"mnemonicpassphrase", RPCArg::Type::STR, /* default */ "", "Optional mnemonic passphrase as defined in BIP39"},
                    {"walletpassphrase", RPCArg::Type::STR, /* default */ "", "If your wallet is encrypted you must have your wallet passphrase here. If your wallet is not encrypted specifying wallet passphrase will trigger wallet encryption."},
                },
                RPCResults{},
                RPCExamples{
                    HelpExampleCli("upgradetohd", "")
            + HelpExampleCli("upgradetohd", "\"mnemonicword1 ... mnemonicwordN\"")
            + HelpExampleCli("upgradetohd", "\"mnemonicword1 ... mnemonicwordN\" \"mnemonicpassphrase\"")
            + HelpExampleCli("upgradetohd", "\"mnemonicword1 ... mnemonicwordN\" \"mnemonicpassphrase\" \"walletpassphrase\"")
                },
            }.ToString());

    auto locked_chain = pwallet->chain().lock();
    LOCK(pwallet->cs_wallet);

    // Do not do anything to HD wallets
    if (pwallet->IsHDEnabled()) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Cannot upgrade a wallet to HD if it is already upgraded to HD.");
    }

    if (!pwallet->SetMaxVersion(FEATURE_HD)) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Cannot downgrade wallet");
    }

    if (pwallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Error: Private keys are disabled for this wallet");
    }

    bool prev_encrypted = pwallet->IsCrypted();

    SecureString secureWalletPassphrase;
    secureWalletPassphrase.reserve(100);
    // TODO: get rid of this .c_str() by implementing SecureString::operator=(std::string)
    // Alternately, find a way to make request.params[0] mlock()'d to begin with.
    if (request.params[2].isNull()) {
        if (prev_encrypted) {
            throw JSONRPCError(RPC_WALLET_PASSPHRASE_INCORRECT, "Cannot upgrade encrypted wallet to HD without the wallet passphrase");
        }
    } else {
        secureWalletPassphrase = request.params[2].get_str().c_str();
        if (!pwallet->Unlock(secureWalletPassphrase)) {
            throw JSONRPCError(RPC_WALLET_PASSPHRASE_INCORRECT, "The wallet passphrase entered was incorrect");
        }
    }

    bool generate_mnemonic = request.params[0].isNull() || request.params[0].get_str().empty();

    SecureString secureMnemonic;
    secureMnemonic.reserve(256);
    if (!generate_mnemonic) {
        if (pwallet->chain().isInitialBlockDownload()) {
            throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD, "Cannot set mnemonic while still in Initial Block Download");
        }
        secureMnemonic = request.params[0].get_str().c_str();
    }

    SecureString secureMnemonicPassphrase;
    secureMnemonicPassphrase.reserve(256);
    if (!request.params[1].isNull()) {
        secureMnemonicPassphrase = request.params[1].get_str().c_str();
    }

    pwallet->WalletLogPrintf("Upgrading wallet to HD\n");
    pwallet->SetMinVersion(FEATURE_HD);

    if (prev_encrypted) {
        if (!pwallet->GenerateNewHDChainEncrypted(secureMnemonic, secureMnemonicPassphrase, secureWalletPassphrase)) {
            throw JSONRPCError(RPC_WALLET_ERROR, "Failed to generate encrypted HD wallet");
        }
    } else {
        pwallet->GenerateNewHDChain(secureMnemonic, secureMnemonicPassphrase);
        if (!secureWalletPassphrase.empty()) {
            if (!pwallet->EncryptWallet(secureWalletPassphrase)) {
                throw JSONRPCError(RPC_WALLET_ENCRYPTION_FAILED, "Failed to encrypt HD wallet");
            }
        }
    }

    // If you are generating new mnemonic it is assumed that the addresses have never gotten a transaction before, so you don't need to rescan for transactions
    if (!generate_mnemonic) {
        WalletRescanReserver reserver(pwallet);
        if (!reserver.reserve()) {
            throw JSONRPCError(RPC_WALLET_ERROR, "Wallet is currently rescanning. Abort existing rescan or wait.");
        }
        pwallet->ScanForWalletTransactions(locked_chain->getBlockHash(0), {}, reserver, true);
    }

    return true;
}

static UniValue keepass(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();
    if (!EnsureWalletIsAvailable(pwallet, request.fHelp))
        return NullUniValue;

    std::string strCommand;

    if (!request.params[0].isNull())
        strCommand = request.params[0].get_str();

    if (request.fHelp  ||
        (strCommand != "genkey" && strCommand != "init" && strCommand != "setpassphrase"))
        throw std::runtime_error(
            "keepass <genkey|init|setpassphrase>\n");

    if (strCommand == "genkey")
    {
        SecureString sResult;
        // Generate RSA key
        SecureString sKey = CKeePassIntegrator::generateKeePassKey();
        sResult = "Generated Key: ";
        sResult += sKey;
        return sResult.c_str();
    }
    else if(strCommand == "init")
    {
        // Generate base64 encoded 256 bit RSA key and associate with KeePassHttp
        SecureString sResult;
        SecureString sKey;
        std::string strId;
        keePassInt.rpcAssociate(strId, sKey);
        sResult = "Association successful. Id: ";
        sResult += strId.c_str();
        sResult += " - Key: ";
        sResult += sKey.c_str();
        return sResult.c_str();
    }
    else if(strCommand == "setpassphrase")
    {
        if(request.params.size() != 2) {
            return "setlogin: invalid number of parameters. Requires a passphrase";
        }

        SecureString sPassphrase = SecureString(request.params[1].get_str().c_str());

        keePassInt.updatePassphrase(sPassphrase);

        return "setlogin: Updated credentials.";
    }

    return "Invalid command";
}

static UniValue loadwallet(const JSONRPCRequest& request)
{
    if (request.fHelp || request.params.size() != 1)
        throw std::runtime_error(
            RPCHelpMan{"loadwallet",
                "\nLoads a wallet from a wallet file or directory."
                "\nNote that all wallet command-line options used when starting dashd will be"
                "\napplied to the new wallet (eg -zapwallettxes, upgradewallet, rescan, etc).\n",
                {
                    {"filename", RPCArg::Type::STR, RPCArg::Optional::NO, "The wallet directory or .dat file."},
                },
                RPCResult{
            "{\n"
            "  \"name\" :    <wallet_name>,        (string) The wallet name if loaded successfully.\n"
            "  \"warning\" : <warning>,            (string) Warning message if wallet was not loaded cleanly.\n"
            "}\n"
                },
                RPCExamples{
                    HelpExampleCli("loadwallet", "\"test.dat\"")
            + HelpExampleRpc("loadwallet", "\"test.dat\"")
                },
            }.ToString());

    WalletLocation location(request.params[0].get_str());

    if (!location.Exists()) {
        throw JSONRPCError(RPC_WALLET_NOT_FOUND, "Wallet " + location.GetName() + " not found.");
    } else if (fs::is_directory(location.GetPath())) {
        // The given filename is a directory. Check that there's a wallet.dat file.
        fs::path wallet_dat_file = location.GetPath() / "wallet.dat";
        if (fs::symlink_status(wallet_dat_file).type() == fs::file_not_found) {
            throw JSONRPCError(RPC_WALLET_NOT_FOUND, "Directory " + location.GetName() + " does not contain a wallet.dat file.");
        }
    }

    std::string error, warning;
    std::shared_ptr<CWallet> const wallet = LoadWallet(*g_rpc_interfaces->chain, location, error, warning);
    if (!wallet) throw JSONRPCError(RPC_WALLET_ERROR, error);

    UniValue obj(UniValue::VOBJ);
    obj.pushKV("name", wallet->GetName());
    obj.pushKV("warning", warning);

    return obj;
}

static UniValue createwallet(const JSONRPCRequest& request)
{
    if (request.fHelp || request.params.size() < 1 || request.params.size() > 2) {
        throw std::runtime_error(
            RPCHelpMan{"createwallet",
                "\nCreates and loads a new wallet.\n",
                {
                    {"wallet_name", RPCArg::Type::STR, RPCArg::Optional::NO, "The name for the new wallet. If this is a path, the wallet will be created at the path location."},
                    {"disable_private_keys", RPCArg::Type::BOOL, /* default */ "false", "Disable the possibility of private keys (only watchonlys are possible in this mode)."},
                },
                RPCResult{
            "{\n"
            "  \"name\" :    <wallet_name>,        (string) The wallet name if created successfully. If the wallet was created using a full path, the wallet_name will be the full path.\n"
            "  \"warning\" : <warning>,            (string) Warning message if wallet was not loaded cleanly.\n"
            "}\n"
                },
                RPCExamples{
                    HelpExampleCli("createwallet", "\"testwallet\"")
            + HelpExampleRpc("createwallet", "\"testwallet\"")
                },
            }.ToString());
    }
    std::string error;
    std::string warning;

    bool disable_privatekeys = false;
    if (!request.params[1].isNull()) {
        disable_privatekeys = request.params[1].get_bool();
    }

    WalletLocation location(request.params[0].get_str());
    if (location.Exists()) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Wallet " + location.GetName() + " already exists.");
    }

    // Wallet::Verify will check if we're trying to create a wallet with a duplication name.
    if (!CWallet::Verify(*g_rpc_interfaces->chain, location, false, error, warning)) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Wallet file verification failed: " + error);
    }

    const auto wallet = CWallet::CreateWalletFromFile(*g_rpc_interfaces->chain, location, (disable_privatekeys ? (uint64_t)WALLET_FLAG_DISABLE_PRIVATE_KEYS : 0));
    if (!wallet) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Wallet creation failed.");
    }
    AddWallet(wallet);

    wallet->postInitProcess();

    UniValue obj(UniValue::VOBJ);
    obj.pushKV("name", wallet->GetName());
    obj.pushKV("warning", warning);

    return obj;
}

static UniValue unloadwallet(const JSONRPCRequest& request)
{
    if (request.fHelp || request.params.size() > 1) {
        throw std::runtime_error(
            RPCHelpMan{"unloadwallet",
                "Unloads the wallet referenced by the request endpoint otherwise unloads the wallet specified in the argument.\n"
                "Specifying the wallet name on a wallet endpoint is invalid.",
                {
                    {"wallet_name", RPCArg::Type::STR, /* default */ "the wallet name from the RPC request", "The name of the wallet to unload."},
                },
                RPCResults{},
                RPCExamples{
                    HelpExampleCli("unloadwallet", "wallet_name")
            + HelpExampleRpc("unloadwallet", "wallet_name")
                },
            }.ToString());
    }

    std::string wallet_name;
    if (GetWalletNameFromJSONRPCRequest(request, wallet_name)) {
        if (!request.params[0].isNull()) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot unload the requested wallet");
        }
    } else {
        wallet_name = request.params[0].get_str();
    }

    std::shared_ptr<CWallet> wallet = GetWallet(wallet_name);
    if (!wallet) {
        throw JSONRPCError(RPC_WALLET_NOT_FOUND, "Requested wallet does not exist or is not loaded");
    }

    // Release the "main" shared pointer and prevent further notifications.
    // Note that any attempt to load the same wallet would fail until the wallet
    // is destroyed (see CheckUniqueFileid).
    if (!RemoveWallet(wallet)) {
        throw JSONRPCError(RPC_MISC_ERROR, "Requested wallet already unloaded");
    }

    UnloadWallet(std::move(wallet));

    return NullUniValue;
}

static UniValue resendwallettransactions(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() != 0)
        throw std::runtime_error(
            RPCHelpMan{"resendwallettransactions",
                "Immediately re-broadcast unconfirmed wallet transactions to all peers.\n"
                "Intended only for testing; the wallet code periodically re-broadcasts\n"
                "automatically.\n",
                {},
                RPCResult{
            "Returns an RPC error if -walletbroadcast is set to false.\n"
            "Returns array of transaction ids that were re-broadcast.\n"
                },
                 RPCExamples{""},
             }.ToString()
            );

    if (!pwallet->chain().p2pEnabled())
        throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");

    auto locked_chain = pwallet->chain().lock();
    LOCK2(mempool.cs, pwallet->cs_wallet);

    if (!pwallet->GetBroadcastTransactions()) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Error: Wallet transaction broadcasting is disabled with -walletbroadcast");
    }

    std::vector<uint256> txids = pwallet->ResendWalletTransactionsBefore(*locked_chain, GetTime());
    UniValue result(UniValue::VARR);
    for (const uint256& txid : txids)
    {
        result.push_back(txid.ToString());
    }
    return result;
}

static UniValue listunspent(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() > 5)
        throw std::runtime_error(
            RPCHelpMan{"listunspent",
                "\nReturns array of unspent transaction outputs\n"
                "with between minconf and maxconf (inclusive) confirmations.\n"
                "Optionally filter to only include txouts paid to specified addresses.\n",
                {
                    {"minconf", RPCArg::Type::NUM, /* default */ "1", "The minimum confirmations to filter"},
                    {"maxconf", RPCArg::Type::NUM, /* default */ "9999999", "The maximum confirmations to filter"},
                    {"addresses", RPCArg::Type::ARR, /* default */ "empty array", "A json array of dash addresses to filter",
                        {
                            {"address", RPCArg::Type::STR, RPCArg::Optional::OMITTED, "dash address"},
                        },
                    },
                    {"include_unsafe", RPCArg::Type::BOOL, /* default */ "true", "Include outputs that are not safe to spend\n"
            "                  See description of \"safe\" attribute below."},
                    {"query_options", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED_NAMED_ARG, "JSON with query options",
                        {
                            {"minimumAmount", RPCArg::Type::AMOUNT, /* default */ "0", "Minimum value of each UTXO in " + CURRENCY_UNIT + ""},
                            {"maximumAmount", RPCArg::Type::AMOUNT, /* default */ "unlimited", "Maximum value of each UTXO in " + CURRENCY_UNIT + ""},
                            {"maximumCount", RPCArg::Type::NUM, /* default */ "unlimited", "Maximum number of UTXOs"},
                            {"minimumSumAmount", RPCArg::Type::AMOUNT, /* default */ "unlimited", "Minimum sum value of all UTXOs in " + CURRENCY_UNIT + ""},
                            {"coinType", RPCArg::Type::NUM, /* default */ "0", "Filter coinTypes as follows:\n"
            "                         0=ALL_COINS, 1=ONLY_FULLY_MIXED, 2=ONLY_READY_TO_MIX, 3=ONLY_NONDENOMINATED,\n"
            "                         4=ONLY_MASTERNODE_COLLATERAL, 5=ONLY_COINJOIN_COLLATERAL" },
                        },
                        "query_options"},
                },
                RPCResult{
            "[                   (array of json object)\n"
            "  {\n"
            "    \"txid\" : \"txid\",          (string) the transaction id \n"
            "    \"vout\" : n,               (numeric) the vout value\n"
            "    \"address\" : \"address\",    (string) the dash address\n"
            "    \"label\" : \"label\",        (string) The associated label, or \"\" for the default label\n"
            "    \"scriptPubKey\" : \"key\",   (string) the script key\n"
            "    \"amount\" : x.xxx,         (numeric) the transaction output amount in " + CURRENCY_UNIT + "\n"
            "    \"confirmations\" : n,      (numeric) The number of confirmations\n"
            "    \"redeemScript\" : n        (string) The redeemScript if scriptPubKey is P2SH\n"
            "    \"spendable\" : xxx,        (bool) Whether we have the private keys to spend this output\n"
            "    \"solvable\" : xxx,         (bool) Whether we know how to spend this output, ignoring the lack of keys\n"
            "    \"desc\" : xxx,             (string, only when solvable) A descriptor for spending this output\n"
            "    \"safe\" : xxx              (bool) Whether this output is considered safe to spend. Unconfirmed transactions\n"
            "                              from outside keys and unconfirmed replacement transactions are considered unsafe\n"
            "                              and are not eligible for spending by fundrawtransaction and sendtoaddress.\n"
            "    \"coinjoin_rounds\" : n     (numeric) The number of CoinJoin rounds\n"
            "  }\n"
            "  ,...\n"
            "]\n"
                },
                RPCExamples{
                    HelpExampleCli("listunspent", "")
            + HelpExampleCli("listunspent", "6 9999999 \"[\\\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwg\\\",\\\"XuQQkwA4FYkq2XERzMY2CiAZhJTEDAbtcg\\\"]\"")
            + HelpExampleRpc("listunspent", "6, 9999999 \"[\\\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwg\\\",\\\"XuQQkwA4FYkq2XERzMY2CiAZhJTEDAbtcg\\\"]\"")
            + HelpExampleCli("listunspent", "6 9999999 '[]' true '{ \"minimumAmount\": 0.005 }'")
            + HelpExampleRpc("listunspent", "6, 9999999, [] , true, { \"minimumAmount\": 0.005 } ")
                },
            }.ToString());

    int nMinDepth = 1;
    if (!request.params[0].isNull()) {
        RPCTypeCheckArgument(request.params[0], UniValue::VNUM);
        nMinDepth = request.params[0].get_int();
    }

    int nMaxDepth = 9999999;
    if (!request.params[1].isNull()) {
        RPCTypeCheckArgument(request.params[1], UniValue::VNUM);
        nMaxDepth = request.params[1].get_int();
    }

    std::set<CTxDestination> destinations;
    if (!request.params[2].isNull()) {
        RPCTypeCheckArgument(request.params[2], UniValue::VARR);
        UniValue inputs = request.params[2].get_array();
        for (unsigned int idx = 0; idx < inputs.size(); idx++) {
            const UniValue& input = inputs[idx];
            CTxDestination dest = DecodeDestination(input.get_str());
            if (!IsValidDestination(dest)) {
                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, std::string("Invalid Dash address: ") + input.get_str());
            }
            if (!destinations.insert(dest).second) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, std::string("Invalid parameter, duplicated address: ") + input.get_str());
            }
        }
    }

    bool include_unsafe = true;
    if (!request.params[3].isNull()) {
        RPCTypeCheckArgument(request.params[3], UniValue::VBOOL);
        include_unsafe = request.params[3].get_bool();
    }

    CAmount nMinimumAmount = 0;
    CAmount nMaximumAmount = MAX_MONEY;
    CAmount nMinimumSumAmount = MAX_MONEY;
    uint64_t nMaximumCount = 0;
    CCoinControl coinControl;
    coinControl.nCoinType = CoinType::ALL_COINS;

    if (!request.params[4].isNull()) {
        const UniValue& options = request.params[4].get_obj();

        // Note: Keep this vector up to date with the options processed below
        const std::vector<std::string> vecOptions {
            "minimumAmount",
            "maximumAmount",
            "minimumSumAmount",
            "maximumCount",
            "coinType"
        };

        for (const auto& key : options.getKeys()) {
            if (std::find(vecOptions.begin(), vecOptions.end(), key) == vecOptions.end()) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, std::string("Invalid key used in query_options JSON object: ") + key);
            }
        }

        if (options.exists("minimumAmount"))
            nMinimumAmount = AmountFromValue(options["minimumAmount"]);

        if (options.exists("maximumAmount"))
            nMaximumAmount = AmountFromValue(options["maximumAmount"]);

        if (options.exists("minimumSumAmount"))
            nMinimumSumAmount = AmountFromValue(options["minimumSumAmount"]);

        if (options.exists("maximumCount"))
            nMaximumCount = options["maximumCount"].get_int64();

        if (options.exists("coinType")) {
            int64_t nCoinType = options["coinType"].get_int64();

            if (nCoinType < static_cast<int64_t>(CoinType::MIN_COIN_TYPE) || nCoinType > static_cast<int64_t>(CoinType::MAX_COIN_TYPE)) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Invalid coinType selected. Available range: %d - %d", static_cast<int64_t>(CoinType::MIN_COIN_TYPE), static_cast<int64_t>(CoinType::MAX_COIN_TYPE)));
            }

            coinControl.nCoinType = static_cast<CoinType>(nCoinType);
        }
    }

    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    UniValue results(UniValue::VARR);
    std::vector<COutput> vecOutputs;
    {
        auto locked_chain = pwallet->chain().lock();
        LOCK(pwallet->cs_wallet);
        pwallet->AvailableCoins(*locked_chain, vecOutputs, !include_unsafe, &coinControl, nMinimumAmount, nMaximumAmount, nMinimumSumAmount, nMaximumCount, nMinDepth, nMaxDepth);
    }

    LOCK(pwallet->cs_wallet);

    for (const COutput& out : vecOutputs) {
        CTxDestination address;
        const CScript& scriptPubKey = out.tx->tx->vout[out.i].scriptPubKey;
        bool fValidAddress = ExtractDestination(scriptPubKey, address);

        if (destinations.size() && (!fValidAddress || !destinations.count(address)))
            continue;

        UniValue entry(UniValue::VOBJ);
        entry.pushKV("txid", out.tx->GetHash().GetHex());
        entry.pushKV("vout", out.i);

        if (fValidAddress) {
            entry.pushKV("address", EncodeDestination(address));

            auto i = pwallet->mapAddressBook.find(address);
            if (i != pwallet->mapAddressBook.end()) {
                entry.pushKV("label", i->second.name);
            }

            if (scriptPubKey.IsPayToScriptHash()) {
                const CScriptID& hash = boost::get<CScriptID>(address);
                CScript redeemScript;
                if (pwallet->GetCScript(hash, redeemScript)) {
                    entry.pushKV("redeemScript", HexStr(redeemScript));
                }
            }
        }

        entry.pushKV("scriptPubKey", HexStr(scriptPubKey));
        entry.pushKV("amount", ValueFromAmount(out.tx->tx->vout[out.i].nValue));
        entry.pushKV("confirmations", out.nDepth);
        entry.pushKV("spendable", out.fSpendable);
        entry.pushKV("solvable", out.fSolvable);
        if (out.fSolvable) {
            auto descriptor = InferDescriptor(scriptPubKey, *pwallet);
            entry.pushKV("desc", descriptor->ToString());
        }
        entry.pushKV("safe", out.fSafe);
        entry.pushKV("coinjoin_rounds", pwallet->GetRealOutpointCoinJoinRounds(COutPoint(out.tx->GetHash(), out.i)));
        results.push_back(entry);
    }

    return results;
}

void FundTransaction(CWallet* const pwallet, CMutableTransaction& tx, CAmount& fee_out, int& change_position, UniValue options)
{
    // Make sure the results are valid at least up to the most recent block
    // the user could have gotten from another RPC command prior to now
    pwallet->BlockUntilSyncedToCurrentChain();

    CCoinControl coinControl;
    change_position = -1;
    bool lockUnspents = false;
    UniValue subtractFeeFromOutputs;
    std::set<int> setSubtractFeeFromOutputs;

    if (!options.isNull()) {
      if (options.type() == UniValue::VBOOL) {
        // backward compatibility bool only fallback
        coinControl.fAllowWatchOnly = options.get_bool();
      }
      else {
        RPCTypeCheckArgument(options, UniValue::VOBJ);
        RPCTypeCheckObj(options,
            {
                {"changeAddress", UniValueType(UniValue::VSTR)},
                {"changePosition", UniValueType(UniValue::VNUM)},
                {"includeWatching", UniValueType(UniValue::VBOOL)},
                {"lockUnspents", UniValueType(UniValue::VBOOL)},
                {"feeRate", UniValueType()}, // will be checked below
                {"subtractFeeFromOutputs", UniValueType(UniValue::VARR)},
                {"conf_target", UniValueType(UniValue::VNUM)},
                {"estimate_mode", UniValueType(UniValue::VSTR)},
            },
            true, true);

        if (options.exists("changeAddress")) {
            CTxDestination dest = DecodeDestination(options["changeAddress"].get_str());

            if (!IsValidDestination(dest)) {
                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "changeAddress must be a valid dash address");
            }

            coinControl.destChange = dest;
        }

        if (options.exists("changePosition"))
            change_position = options["changePosition"].get_int();

        if (options.exists("includeWatching"))
            coinControl.fAllowWatchOnly = options["includeWatching"].get_bool();

        if (options.exists("lockUnspents"))
            lockUnspents = options["lockUnspents"].get_bool();

        if (options.exists("feeRate"))
        {
            coinControl.m_feerate = CFeeRate(AmountFromValue(options["feeRate"]));
            coinControl.fOverrideFeeRate = true;
        }

        if (options.exists("subtractFeeFromOutputs"))
            subtractFeeFromOutputs = options["subtractFeeFromOutputs"].get_array();
        if (options.exists("conf_target")) {
            if (options.exists("feeRate")) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot specify both conf_target and feeRate");
            }
            coinControl.m_confirm_target = ParseConfirmTarget(options["conf_target"], pwallet->chain().estimateMaxBlocks());
        }
        if (options.exists("estimate_mode")) {
            if (options.exists("feeRate")) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot specify both estimate_mode and feeRate");
            }
            if (!FeeModeFromString(options["estimate_mode"].get_str(), coinControl.m_fee_mode)) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid estimate_mode parameter");
            }
        }
      }
    }

    if (tx.vout.size() == 0)
        throw JSONRPCError(RPC_INVALID_PARAMETER, "TX must have at least one output");

    if (change_position != -1 && (change_position < 0 || (unsigned int)change_position > tx.vout.size()))
        throw JSONRPCError(RPC_INVALID_PARAMETER, "changePosition out of bounds");

    for (unsigned int idx = 0; idx < subtractFeeFromOutputs.size(); idx++) {
        int pos = subtractFeeFromOutputs[idx].get_int();
        if (setSubtractFeeFromOutputs.count(pos))
            throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Invalid parameter, duplicated position: %d", pos));
        if (pos < 0)
            throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Invalid parameter, negative position: %d", pos));
        if (pos >= int(tx.vout.size()))
            throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Invalid parameter, position too large: %d", pos));
        setSubtractFeeFromOutputs.insert(pos);
    }

    std::string strFailReason;

    if (!pwallet->FundTransaction(tx, fee_out, change_position, strFailReason, lockUnspents, setSubtractFeeFromOutputs, coinControl)) {
        throw JSONRPCError(RPC_WALLET_ERROR, strFailReason);
    }
}

static UniValue fundrawtransaction(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 1 || request.params.size() > 3)
        throw std::runtime_error(
            RPCHelpMan{"fundrawtransaction",
                "\nAdd inputs to a transaction until it has enough in value to meet its out value.\n"
                "This will not modify existing inputs, and will add at most one change output to the outputs.\n"
                "No existing outputs will be modified unless \"subtractFeeFromOutputs\" is specified.\n"
                "Note that inputs which were signed may need to be resigned after completion since in/outputs have been added.\n"
                "The inputs added will not be signed, use signrawtransactionwithkey\n"
                " or signrawtransactionwithwallet for that.\n"
                "Note that all existing inputs must have their previous output transaction be in the wallet.\n"
                "Note that all inputs selected must be of standard form and P2SH scripts must be\n"
                "in the wallet using importaddress or addmultisigaddress (to calculate fees).\n"
                "You can see whether this is the case by checking the \"solvable\" field in the listunspent output.\n"
                "Only pay-to-pubkey, multisig, and P2SH versions thereof are currently supported for watch-only\n",
                {
                    {"hexstring", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The hex string of the raw transaction"},
                    {"options", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED_NAMED_ARG, "for backward compatibility: passing in a true instead of an object will result in {\"includeWatching\":true}",
                        {
                            {"changeAddress", RPCArg::Type::STR, /* default */ "pool address", "The dash address to receive the change"},
                            {"changePosition", RPCArg::Type::NUM, /* default */ "random", "The index of the change output"},
                            {"includeWatching", RPCArg::Type::BOOL, /* default */ "false", "Also select inputs which are watch only"},
                            {"lockUnspents", RPCArg::Type::BOOL, /* default */ "false", "Lock selected unspent outputs"},
                            {"feeRate", RPCArg::Type::AMOUNT, /* default */ "not set: makes wallet determine the fee", "Set a specific fee rate in " + CURRENCY_UNIT + "/kB"},
                            {"subtractFeeFromOutputs", RPCArg::Type::ARR, /* default */ "empty array", "A json array of integers.\n"
                            "                              The fee will be equally deducted from the amount of each specified output.\n"
                            "                              Those recipients will receive less dash than you enter in their corresponding amount field.\n"
                            "                              If no outputs are specified here, the sender pays the fee.",
                                {
                                    {"vout_index", RPCArg::Type::NUM, RPCArg::Optional::OMITTED, "The zero-based output index, before a change output is added."},
                                },
                            },
                            {"conf_target", RPCArg::Type::NUM, /* default */ "wallet default", "Confirmation target (in blocks)"},
                            {"estimate_mode", RPCArg::Type::STR, /* default */ "UNSET", "The fee estimate mode, must be one of:\n"
                            "         \"UNSET\"\n"
                            "         \"ECONOMICAL\"\n"
                            "         \"CONSERVATIVE\""},
                        },
                        "options"},
                },
                RPCResult{
                            "{\n"
                            "  \"hex\":       \"value\", (string)  The resulting raw transaction (hex-encoded string)\n"
                            "  \"fee\":       n,         (numeric) Fee in " + CURRENCY_UNIT + " the resulting transaction pays\n"
                            "  \"changepos\": n          (numeric) The position of the added change output, or -1\n"
                            "}\n"
                                },
                                RPCExamples{
                            "\nCreate a transaction with no inputs\n"
                            + HelpExampleCli("createrawtransaction", "\"[]\" \"{\\\"myaddress\\\":0.01}\"") +
                            "\nAdd sufficient unsigned inputs to meet the output value\n"
                            + HelpExampleCli("fundrawtransaction", "\"rawtransactionhex\"") +
                            "\nSign the transaction\n"
                            + HelpExampleCli("signrawtransaction", "\"fundedtransactionhex\"") +
                            "\nSend the transaction\n"
                            + HelpExampleCli("sendrawtransaction", "\"signedtransactionhex\"")
                                },
                            }.ToString());

    RPCTypeCheck(request.params, {UniValue::VSTR, UniValueType(), UniValue::VBOOL});

    // parse hex string from parameter
    CMutableTransaction tx;
    if (!DecodeHexTx(tx, request.params[0].get_str())) {
        throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
    }

    CAmount fee;
    int change_position;
    FundTransaction(pwallet, tx, fee, change_position, request.params[1]);

    UniValue result(UniValue::VOBJ);
    result.pushKV("hex", EncodeHexTx(CTransaction(tx)));
    result.pushKV("fee", ValueFromAmount(fee));
    result.pushKV("changepos", change_position);

    return result;
}

UniValue signrawtransactionwithwallet(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 1 || request.params.size() > 3)
        throw std::runtime_error(
            RPCHelpMan{"signrawtransactionwithwallet",
                "\nSign inputs for raw transaction (serialized, hex-encoded).\n"
                "The second optional argument (may be null) is an array of previous transaction outputs that\n"
                "this transaction depends on but may not yet be in the block chain." +
                    HelpRequiringPassphrase(pwallet) + "\n",
                {
                    {"hexstring", RPCArg::Type::STR, RPCArg::Optional::NO, "The transaction hex string"},
                    {"prevtxs", RPCArg::Type::ARR, RPCArg::Optional::OMITTED_NAMED_ARG, "A json array of previous dependent transaction outputs",
                        {
                            {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
                                {
                                    {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction id"},
                                    {"vout", RPCArg::Type::NUM, RPCArg::Optional::NO, "The output number"},
                                    {"scriptPubKey", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "script key"},
                                    {"redeemScript", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, "(required for P2SH or P2WSH)"},
                                    {"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "The amount spent"},
                                },
                            },
                        },
                    },
                    {"sighashtype", RPCArg::Type::STR, /* default */ "ALL", "The signature hash type. Must be one of\n"
            "       \"ALL\"\n"
            "       \"NONE\"\n"
            "       \"SINGLE\"\n"
            "       \"ALL|ANYONECANPAY\"\n"
            "       \"NONE|ANYONECANPAY\"\n"
            "       \"SINGLE|ANYONECANPAY\""},
                },
                RPCResult{
            "{\n"
            "  \"hex\" : \"value\",                  (string) The hex-encoded raw transaction with signature(s)\n"
            "  \"complete\" : true|false,          (boolean) If the transaction has a complete set of signatures\n"
            "  \"errors\" : [                      (json array of objects) Script verification errors (if there are any)\n"
            "    {\n"
            "      \"txid\" : \"hash\",              (string) The hash of the referenced, previous transaction\n"
            "      \"vout\" : n,                   (numeric) The index of the output to spent and used as input\n"
            "      \"scriptSig\" : \"hex\",          (string) The hex-encoded signature script\n"
            "      \"sequence\" : n,               (numeric) Script sequence number\n"
            "      \"error\" : \"text\"              (string) Verification or signing error related to the input\n"
            "    }\n"
            "    ,...\n"
            "  ]\n"
            "}\n"
                },
                RPCExamples{
                    HelpExampleCli("signrawtransactionwithwallet", "\"myhex\"")
            + HelpExampleRpc("signrawtransactionwithwallet", "\"myhex\"")
                },
            }.ToString());

    RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VARR, UniValue::VSTR}, true);

    CMutableTransaction mtx;
    if (!DecodeHexTx(mtx, request.params[0].get_str())) {
        throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
    }

    // Sign the transaction
    auto locked_chain = pwallet->chain().lock();
    LOCK2(mempool.cs, pwallet->cs_wallet);
    EnsureWalletIsUnlocked(pwallet);

    return SignTransaction(pwallet->chain(), mtx, request.params[1], pwallet, false, request.params[2]);
}

#if ENABLE_MINER
UniValue generate(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();


    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 1 || request.params.size() > 2) {
        throw std::runtime_error(
            RPCHelpMan{"generate",
                "\nMine up to nblocks blocks immediately (before the RPC call returns) to an address in the wallet.\n",
                {
                    {"nblocks", RPCArg::Type::NUM, RPCArg::Optional::NO, "How many blocks are generated immediately."},
                    {"maxtries", RPCArg::Type::NUM, /* default */ "1000000", "How many iterations to try."},
                },
                RPCResult{
            "[ blockhashes ]     (array) hashes of blocks generated\n"
                },
                RPCExamples{
            "\nGenerate 11 blocks\n"
            + HelpExampleCli("generate", "11")
                },
            }.ToString());
    }

    int num_generate = request.params[0].get_int();
    uint64_t max_tries = 1000000;
    if (!request.params[1].isNull()) {
        max_tries = request.params[1].get_int();
    }

    std::shared_ptr<CReserveScript> coinbase_script;
    pwallet->GetScriptForMining(coinbase_script);

    // If the keypool is exhausted, no script is returned at all.  Catch this.
    if (!coinbase_script) {
        throw JSONRPCError(RPC_WALLET_KEYPOOL_RAN_OUT, "Error: Keypool ran out, please call keypoolrefill first");
    }

    //throw an error if no script was provided
    if (coinbase_script->reserveScript.empty()) {
        throw JSONRPCError(RPC_INTERNAL_ERROR, "No coinbase script available");
    }

    return generateBlocks(coinbase_script, num_generate, max_tries, true);
}
#else
UniValue generate(const JSONRPCRequest& request)
{
    throw JSONRPCError(RPC_METHOD_NOT_FOUND, "This call is not available because RPC miner isn't compiled");
}
#endif //ENABLE_MINING

static UniValue rescanblockchain(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() > 2) {
        throw std::runtime_error(
            RPCHelpMan{"rescanblockchain",
                "\nRescan the local blockchain for wallet related transactions.\n"
                "Note: Use \"getwalletinfo\" to query the scanning progress.\n",
                {
                    {"start_height", RPCArg::Type::NUM, /* default */ "0", "block height where the rescan should start"},
                    {"stop_height", RPCArg::Type::NUM, RPCArg::Optional::OMITTED_NAMED_ARG, "the last block height that should be scanned. If none is provided it will rescan up to the tip at return time of this call."},
                },
                RPCResult{
            "{\n"
            "  \"start_height\"     (numeric) The block height where the rescan started (the requested height or 0)\n"
            "  \"stop_height\"      (numeric) The height of the last rescanned block. May be null in rare cases if there was a reorg and the call didn't scan any blocks because they were already scanned in the background.\n"
            "}\n"
                },
                RPCExamples{
                    HelpExampleCli("rescanblockchain", "100000 120000")
            + HelpExampleRpc("rescanblockchain", "100000, 120000")
                },
            }.ToString());
    }

    WalletRescanReserver reserver(pwallet);
    if (!reserver.reserve()) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Wallet is currently rescanning. Abort existing rescan or wait.");
    }

    int start_height = 0;
    uint256 start_block, stop_block;
    {
        auto locked_chain = pwallet->chain().lock();
        Optional<int> tip_height = locked_chain->getHeight();

        if (!request.params[0].isNull()) {
            start_height = request.params[0].get_int();
            if (start_height < 0 || !tip_height || start_height > *tip_height) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid start_height");
            }
        }

        Optional<int> stop_height;
        if (!request.params[1].isNull()) {
            stop_height = request.params[1].get_int();
            if (*stop_height < 0 || !tip_height || *stop_height > *tip_height) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid stop_height");
            }
            else if (*stop_height < start_height) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "stop_height must be greater than start_height");
            }
        }

        // We can't rescan beyond non-pruned blocks, stop and throw an error
        if (locked_chain->findPruned(start_height, stop_height)) {
            throw JSONRPCError(RPC_MISC_ERROR, "Can't rescan beyond pruned data. Use RPC call getblockchaininfo to determine your pruned height.");
        }

        if (tip_height) {
            start_block = locked_chain->getBlockHash(start_height);
            // If called with a stop_height, set the stop_height here to
            // trigger a rescan to that height.
            // If called without a stop height, leave stop_height as null here
            // so rescan continues to the tip (even if the tip advances during
            // rescan).
            if (stop_height) {
                stop_block = locked_chain->getBlockHash(*stop_height);
            }
        }
    }

    CWallet::ScanResult result =
        pwallet->ScanForWalletTransactions(start_block, stop_block, reserver, true /* fUpdate */);
    switch (result.status) {
    case CWallet::ScanResult::SUCCESS:
        break;
    case CWallet::ScanResult::FAILURE:
        throw JSONRPCError(RPC_MISC_ERROR, "Rescan failed. Potentially corrupted data files.");
    case CWallet::ScanResult::USER_ABORT:
        throw JSONRPCError(RPC_MISC_ERROR, "Rescan aborted.");
        // no default case, so the compiler can warn about missing cases
    }
    UniValue response(UniValue::VOBJ);
    response.pushKV("start_height", start_height);
    response.pushKV("stop_height", result.last_scanned_height ? *result.last_scanned_height : UniValue());
    return response;
}

class DescribeWalletAddressVisitor : public boost::static_visitor<UniValue>
{
public:
    CWallet * const pwallet;

    explicit DescribeWalletAddressVisitor(CWallet *_pwallet) : pwallet(_pwallet) {}

    UniValue operator()(const CNoDestination &dest) const { return UniValue(UniValue::VOBJ); }

    UniValue operator()(const CKeyID &keyID) const {
        UniValue obj(UniValue::VOBJ);
        CPubKey vchPubKey;
        if (pwallet && pwallet->GetPubKey(keyID, vchPubKey)) {
            obj.pushKV("pubkey", HexStr(vchPubKey));
            obj.pushKV("iscompressed", vchPubKey.IsCompressed());
        }
        return obj;
    }

    UniValue operator()(const CScriptID &scriptID) const {
        UniValue obj(UniValue::VOBJ);
        CScript subscript;
        if (pwallet && pwallet->GetCScript(scriptID, subscript)) {
            std::vector<CTxDestination> addresses;
            txnouttype whichType;
            int nRequired;
            ExtractDestinations(subscript, whichType, addresses, nRequired);
            obj.pushKV("script", GetTxnOutputType(whichType));
            obj.pushKV("hex", HexStr(subscript));
            UniValue a(UniValue::VARR);
            for (const CTxDestination& addr : addresses) {
                a.push_back(EncodeDestination(addr));
            }
            obj.pushKV("addresses", a);
            if (whichType == TX_MULTISIG)
                obj.pushKV("sigsrequired", nRequired);
        }
        return obj;
    }
};

static UniValue DescribeWalletAddress(CWallet* pwallet, const CTxDestination& dest)
{
    UniValue ret(UniValue::VOBJ);
    UniValue detail = DescribeAddress(dest);
    ret.pushKVs(detail);
    ret.pushKVs(boost::apply_visitor(DescribeWalletAddressVisitor(pwallet), dest));
    return ret;
}

/** Convert CAddressBookData to JSON record.  */
static UniValue AddressBookDataToJSON(const CAddressBookData& data, const bool verbose)
{
    UniValue ret(UniValue::VOBJ);
    if (verbose) {
        ret.pushKV("name", data.name);
    }
    ret.pushKV("purpose", data.purpose);
    return ret;
}

UniValue getaddressinfo(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() != 1) {
        throw std::runtime_error(
            RPCHelpMan{"getaddressinfo",
                "\nReturn information about the given dash address. Some information requires the address\n"
                "to be in the wallet.\n",
                {
                    {"address", RPCArg::Type::STR, RPCArg::Optional::NO, "The dash address to get the information of."},
                },
                RPCResult{
            "{\n"
            "  \"address\" : \"address\",        (string) The dash address validated\n"
            "  \"scriptPubKey\" : \"hex\",       (string) The hex-encoded scriptPubKey generated by the address\n"
            "  \"ismine\" : true|false,        (boolean) If the address is yours or not\n"
            "  \"iswatchonly\" : true|false,   (boolean) If the address is watchonly\n"
            "  \"solvable\" : true|false,      (boolean) Whether we know how to spend coins sent to this address, ignoring the possible lack of private keys\n"
            "  \"desc\" : \"desc\",            (string, optional) A descriptor for spending coins sent to this address (only when solvable)\n"
            "  \"isscript\" : true|false,      (boolean) If the key is a script\n"
            " \"ischange\" : true|false,       (boolean) If the address was used for change output\n"
            "  \"script\" : \"type\"             (string, optional) The output script type. Only if \"isscript\" is true and the redeemscript is known. Possible types: nonstandard, pubkey, pubkeyhash, scripthash, multisig, nulldata\n"
            "  \"hex\" : \"hex\",                (string, optional) The redeemscript for the p2sh address\n"
            "  \"pubkeys\"                     (string, optional) Array of pubkeys associated with the known redeemscript (only if \"script\" is \"multisig\")\n"
            "    [\n"
            "      \"pubkey\"\n"
            "      ,...\n"
            "    ]\n"
            "  \"sigsrequired\" : xxxxx        (numeric, optional) Number of signatures required to spend multisig output (only if \"script\" is \"multisig\")\n"
            "  \"pubkey\" : \"publickeyhex\",    (string, optional) The hex value of the raw public key, for single-key addresses (possibly embedded in P2SH)\n"
            "  \"embedded\" : {...},           (object, optional) Information about the address embedded in P2SH, if relevant and known. It includes all getaddressinfo output fields for the embedded address, excluding metadata (\"timestamp\", \"hdkeypath\") and relation to the wallet (\"ismine\", \"iswatchonly\").\n"
            "  \"iscompressed\" : true|false,  (boolean, optional) If the pubkey is compressed\n"
            "  \"label\" :  \"label\"         (string) The label associated with the address, \"\" is the default label\n"
            "  \"timestamp\" : timestamp,      (number, optional) The creation time of the key if available in seconds since epoch (Jan 1 1970 GMT)\n"
            "  \"hdkeypath\" : \"keypath\"       (string, optional) The HD keypath if the key is HD and available\n"
            "  \"hdchainid\" : \"<hash>\"        (string, optional) The ID of the HD chain\n"
            "  \"labels\"                      (object) Array of labels associated with the address.\n"
            "    [\n"
            "      { (json object of label data)\n"
            "        \"name\": \"labelname\" (string) The label\n"
            "        \"purpose\": \"string\" (string) Purpose of address (\"send\" for sending address, \"receive\" for receiving address)\n"
            "      },...\n"
            "    ]\n"
            "}\n"
                },
                RPCExamples{
                    HelpExampleCli("getaddressinfo", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwg\"")
            + HelpExampleRpc("getaddressinfo", "\"XwnLY9Tf7Zsef8gMGL2fhWA9ZmMjt4KPwg\"")
                },
            }.ToString());
    }

    LOCK(pwallet->cs_wallet);

    UniValue ret(UniValue::VOBJ);
    CTxDestination dest = DecodeDestination(request.params[0].get_str());

    // Make sure the destination is valid
    if (!IsValidDestination(dest)) {
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid address");
    }

    std::string currentAddress = EncodeDestination(dest);
    ret.pushKV("address", currentAddress);

    CScript scriptPubKey = GetScriptForDestination(dest);
    ret.pushKV("scriptPubKey", HexStr(scriptPubKey));

    isminetype mine = IsMine(*pwallet, dest);
    ret.pushKV("ismine", bool(mine & ISMINE_SPENDABLE));
    bool solvable = IsSolvable(*pwallet, scriptPubKey);
    ret.pushKV("solvable", solvable);
    if (solvable) {
        ret.pushKV("desc", InferDescriptor(scriptPubKey, *pwallet)->ToString());
    }
    ret.pushKV("iswatchonly", bool(mine & ISMINE_WATCH_ONLY));
    UniValue detail = DescribeWalletAddress(pwallet, dest);
    ret.pushKVs(detail);
    if (pwallet->mapAddressBook.count(dest)) {
        ret.pushKV("label", pwallet->mapAddressBook[dest].name);
    }
    ret.pushKV("ischange", pwallet->IsChange(scriptPubKey));
    const CKeyMetadata* meta = nullptr;
    const CKeyID *key_id = boost::get<CKeyID>(&dest);
    if (key_id != nullptr && !key_id->IsNull()) {
        auto it = pwallet->mapKeyMetadata.find(*key_id);
        if (it != pwallet->mapKeyMetadata.end()) {
            meta = &it->second;
        }
    }
    if (!meta) {
        auto it = pwallet->m_script_metadata.find(CScriptID(scriptPubKey));
        if (it != pwallet->m_script_metadata.end()) {
            meta = &it->second;
        }
    }
    if (meta) {
        ret.pushKV("timestamp", meta->nCreateTime);
        CHDChain hdChainCurrent;
        if (key_id && pwallet->mapHdPubKeys.count(*key_id) && pwallet->GetHDChain(hdChainCurrent)) {
            ret.pushKV("hdkeypath", pwallet->mapHdPubKeys[*key_id].GetKeyPath());
            ret.pushKV("hdchainid", hdChainCurrent.GetID().GetHex());
        }
    }

    // Currently only one label can be associated with an address, return an array
    // so the API remains stable if we allow multiple labels to be associated with
    // an address.
    UniValue labels(UniValue::VARR);
    std::map<CTxDestination, CAddressBookData>::iterator mi = pwallet->mapAddressBook.find(dest);
    if (mi != pwallet->mapAddressBook.end()) {
        labels.push_back(AddressBookDataToJSON(mi->second, true));
    }
    ret.pushKV("labels", std::move(labels));

    return ret;
}

static UniValue getaddressesbylabel(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() != 1)
        throw std::runtime_error(
            RPCHelpMan{"getaddressesbylabel",
                "\nReturns the list of addresses assigned the specified label.\n",
                {
                    {"label", RPCArg::Type::STR, RPCArg::Optional::NO, "The label."},
                },
                RPCResult{
            "{ (json object with addresses as keys)\n"
            "  \"address\": { (json object with information about address)\n"
            "    \"purpose\": \"string\" (string)  Purpose of address (\"send\" for sending address, \"receive\" for receiving address)\n"
            "  },...\n"
            "}\n"
                },
                RPCExamples{
                    HelpExampleCli("getaddressesbylabel", "\"tabby\"")
            + HelpExampleRpc("getaddressesbylabel", "\"tabby\"")
                },
            }.ToString());

    LOCK(pwallet->cs_wallet);

    std::string label = LabelFromValue(request.params[0]);

    // Find all addresses that have the given label
    UniValue ret(UniValue::VOBJ);
    std::set<std::string> addresses;
    for (const std::pair<CTxDestination, CAddressBookData>& item : pwallet->mapAddressBook) {
        if (item.second.name == label) {
            std::string address = EncodeDestination(item.first);
            // CWallet::mapAddressBook is not expected to contain duplicate
            // address strings, but build a separate set as a precaution just in
            // case it does.
            bool unique = addresses.emplace(address).second;
            assert(unique);
            // UniValue::pushKV checks if the key exists in O(N)
            // and since duplicate addresses are unexpected (checked with
            // std::set in O(log(N))), UniValue::__pushKV is used instead,
            // which currently is O(1).
            ret.__pushKV(address, AddressBookDataToJSON(item.second, false));
        }
    }

    if (ret.empty()) {
        throw JSONRPCError(RPC_WALLET_INVALID_LABEL_NAME, std::string("No addresses with label " + label));
    }

    return ret;
}

static UniValue listlabels(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() > 1)
        throw std::runtime_error(
            RPCHelpMan{"listlabels",
                "\nReturns the list of all labels, or labels that are assigned to addresses with a specific purpose.\n",
                {
                    {"purpose", RPCArg::Type::STR, RPCArg::Optional::OMITTED_NAMED_ARG, "Address purpose to list labels for ('send','receive'). An empty string is the same as not providing this argument."},
                },
                RPCResult{
            "[               (json array of string)\n"
            "  \"label\",      (string) Label name\n"
            "  ...\n"
            "]\n"
                },
                RPCExamples{
            "\nList all labels\n"
            + HelpExampleCli("listlabels", "") +
            "\nList labels that have receiving addresses\n"
            + HelpExampleCli("listlabels", "receive") +
            "\nList labels that have sending addresses\n"
            + HelpExampleCli("listlabels", "send") +
            "\nAs a JSON-RPC call\n"
            + HelpExampleRpc("listlabels", "receive")
                },
            }.ToString());

    LOCK(pwallet->cs_wallet);

    std::string purpose;
    if (!request.params[0].isNull()) {
        purpose = request.params[0].get_str();
    }

    // Add to a set to sort by label name, then insert into Univalue array
    std::set<std::string> label_set;
    for (const std::pair<CTxDestination, CAddressBookData>& entry : pwallet->mapAddressBook) {
        if (purpose.empty() || entry.second.purpose == purpose) {
            label_set.insert(entry.second.name);
        }
    }

    UniValue ret(UniValue::VARR);
    for (const std::string& name : label_set) {
        ret.push_back(name);
    }

    return ret;
}

UniValue abortrescan(const JSONRPCRequest& request); // in rpcdump.cpp
UniValue dumpprivkey(const JSONRPCRequest& request); // in rpcdump.cpp
UniValue importprivkey(const JSONRPCRequest& request);
UniValue importaddress(const JSONRPCRequest& request);
UniValue importpubkey(const JSONRPCRequest& request);
UniValue dumpwallet(const JSONRPCRequest& request);
UniValue importwallet(const JSONRPCRequest& request);
UniValue importprunedfunds(const JSONRPCRequest& request);
UniValue removeprunedfunds(const JSONRPCRequest& request);
UniValue importmulti(const JSONRPCRequest& request);
UniValue dumphdinfo(const JSONRPCRequest& request);
UniValue importelectrumwallet(const JSONRPCRequest& request);

UniValue walletprocesspsbt(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 1 || request.params.size() > 4)
        throw std::runtime_error(
            RPCHelpMan{"walletprocesspsbt",
                "\nUpdate a PSBT with input information from our wallet and then sign inputs\n"
                "that we can sign for." +
                    HelpRequiringPassphrase(pwallet) + "\n",
                {
                    {"psbt", RPCArg::Type::STR, RPCArg::Optional::NO, "The transaction base64 string"},
                    {"sign", RPCArg::Type::BOOL, /* default */ "true", "Also sign the transaction when updating"},
                    {"sighashtype", RPCArg::Type::STR, /* default */ "ALL", "The signature hash type to sign with if not specified by the PSBT. Must be one of\n"
            "       \"ALL\"\n"
            "       \"NONE\"\n"
            "       \"SINGLE\"\n"
            "       \"ALL|ANYONECANPAY\"\n"
            "       \"NONE|ANYONECANPAY\"\n"
            "       \"SINGLE|ANYONECANPAY\""},
                    {"bip32derivs", RPCArg::Type::BOOL, /* default */ "false", "If true, includes the BIP 32 derivation paths for public keys if we know them"},
                },
                RPCResult{
            "{\n"
            "  \"psbt\" : \"value\",          (string) The base64-encoded partially signed transaction\n"
            "  \"complete\" : true|false,   (boolean) If the transaction has a complete set of signatures\n"
            "  ]\n"
            "}\n"
                },
                RPCExamples{
                    HelpExampleCli("walletprocesspsbt", "\"psbt\"")
                },
            }.ToString());

    RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VBOOL, UniValue::VSTR});

    // Unserialize the transaction
    PartiallySignedTransaction psbtx;
    std::string error;
    if (!DecodeBase64PSBT(psbtx, request.params[0].get_str(), error)) {
        throw JSONRPCError(RPC_DESERIALIZATION_ERROR, strprintf("TX decode failed %s", error));
    }

    // Get the sighash type
    int nHashType = ParseSighashString(request.params[2]);

    // Use CTransaction for the constant parts of the
    // transaction to avoid rehashing.
    const CTransaction txConst(*psbtx.tx);

    // Fill transaction with our data and also sign
    bool sign = request.params[1].isNull() ? true : request.params[1].get_bool();
    bool bip32derivs = request.params[3].isNull() ? false : request.params[3].get_bool();
    bool complete = true;
    const TransactionError err = FillPSBT(pwallet, psbtx, complete, nHashType, sign, bip32derivs);
    if (err != TransactionError::OK) {
        throw JSONRPCTransactionError(err);
    }

    UniValue result(UniValue::VOBJ);
    CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
    ssTx << psbtx;
    result.pushKV("psbt", EncodeBase64(ssTx.str()));
    result.pushKV("complete", complete);

    return result;
}

UniValue walletcreatefundedpsbt(const JSONRPCRequest& request)
{
    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
    CWallet* const pwallet = wallet.get();

    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
        return NullUniValue;
    }

    if (request.fHelp || request.params.size() < 2 || request.params.size() > 6)
        throw std::runtime_error(
            RPCHelpMan{"walletcreatefundedpsbt",
                "\nCreates and funds a transaction in the Partially Signed Transaction format. Inputs will be added if supplied inputs are not enough\n"
                "Implements the Creator and Updater roles.\n",
                {
                    {"inputs", RPCArg::Type::ARR, RPCArg::Optional::NO, "A json array of json objects",
                        {
                            {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
                                {
                                    {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The transaction id"},
                                    {"vout", RPCArg::Type::NUM, RPCArg::Optional::NO, "The output number"},
                                    {"sequence", RPCArg::Type::NUM, RPCArg::Optional::NO, "The sequence number"},
                                },
                            },
                        },
                        },
                    {"outputs", RPCArg::Type::ARR, RPCArg::Optional::NO, "a json array with outputs (key-value pairs).\n"
                            "For compatibility reasons, a dictionary, which holds the key-value pairs directly, is also\n"
                            "                             accepted as second parameter.",
                        {
                            {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
                                {
                                    {"address", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "A key-value pair. The key (string) is the dash address, the value (float or string) is the amount in " + CURRENCY_UNIT + ""},
                                },
                                },
                            {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
                                {
                                    {"data", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "A key-value pair. The key must be \"data\", the value is hex-encoded data"},
                                },
                            },
                        },
                    },
                    {"locktime", RPCArg::Type::NUM, /* default */ "0", "Raw locktime. Non-0 value also locktime-activates inputs"},
                    {"options", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED_NAMED_ARG, "",
                        {
                            {"changeAddress", RPCArg::Type::STR_HEX, /* default */ "pool address", "The dash address to receive the change"},
                            {"changePosition", RPCArg::Type::NUM, /* default */ "random", "The index of the change output"},
                            {"includeWatching", RPCArg::Type::BOOL, /* default */ "false", "Also select inputs which are watch only"},
                            {"lockUnspents", RPCArg::Type::BOOL, /* default */ "false", "Lock selected unspent outputs"},
                            {"feeRate", RPCArg::Type::AMOUNT, /* default */ "not set: makes wallet determine the fee", "Set a specific fee rate in " + CURRENCY_UNIT + "/kB"},
                            {"subtractFeeFromOutputs", RPCArg::Type::ARR, /* default */ "empty array", "A json array of integers.\n"
                            "                              The fee will be equally deducted from the amount of each specified output.\n"
                            "                              Those recipients will receive less Dash than you enter in their corresponding amount field.\n"
                            "                              If no outputs are specified here, the sender pays the fee.",
                                {
                                    {"vout_index", RPCArg::Type::NUM, RPCArg::Optional::OMITTED, "The zero-based output index, before a change output is added."},
                                },
                            },
                            {"conf_target", RPCArg::Type::NUM, /* default */ "Fallback to wallet's confirmation target", "Confirmation target (in blocks)"},
                            {"estimate_mode", RPCArg::Type::STR, /* default */ "UNSET", "The fee estimate mode, must be one of:\n"
                            "         \"UNSET\"\n"
                            "         \"ECONOMICAL\"\n"
                            "         \"CONSERVATIVE\""},
                        },
                        "options"},
                    {"bip32derivs", RPCArg::Type::BOOL, /* default */ "false", "If true, includes the BIP 32 derivation paths for public keys if we know them"},
                },
                RPCResult{
                            "{\n"
                            "  \"psbt\": \"value\",        (string)  The resulting raw transaction (base64-encoded string)\n"
                            "  \"fee\":       n,         (numeric) Fee in " + CURRENCY_UNIT + " the resulting transaction pays\n"
                            "  \"changepos\": n          (numeric) The position of the added change output, or -1\n"
                            "}\n"
                                },
                                RPCExamples{
                            "\nCreate a transaction with no inputs\n"
                            + HelpExampleCli("walletcreatefundedpsbt", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\" \"[{\\\"data\\\":\\\"00010203\\\"}]\"")
                                },
                            }.ToString());

    RPCTypeCheck(request.params, {
        UniValue::VARR,
        UniValueType(), // ARR or OBJ, checked later
        UniValue::VNUM,
        UniValue::VOBJ,
        UniValue::VBOOL,
        }, true
    );

    CAmount fee;
    int change_position;
    CMutableTransaction rawTx = ConstructTransaction(request.params[0], request.params[1], request.params[2]);
    FundTransaction(pwallet, rawTx, fee, change_position, request.params[3]);

    // Make a blank psbt
    PartiallySignedTransaction psbtx;
    psbtx.tx = rawTx;
    for (unsigned int i = 0; i < rawTx.vin.size(); ++i) {
        psbtx.inputs.push_back(PSBTInput());
    }
    for (unsigned int i = 0; i < rawTx.vout.size(); ++i) {
        psbtx.outputs.push_back(PSBTOutput());
    }

    // Use CTransaction for the constant parts of the
    // transaction to avoid rehashing.
    const CTransaction txConst(*psbtx.tx);

    // Fill transaction with out data but don't sign
    bool bip32derivs = request.params[4].isNull() ? false : request.params[4].get_bool();
    bool complete = true;
    const TransactionError err = FillPSBT(pwallet, psbtx, complete, 1, false, bip32derivs);
    if (err != TransactionError::OK) {
        throw JSONRPCTransactionError(err);
    }

    // Serialize the PSBT
    CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
    ssTx << psbtx;

    UniValue result(UniValue::VOBJ);
    result.pushKV("psbt", EncodeBase64(ssTx.str()));
    result.pushKV("fee", ValueFromAmount(fee));
    result.pushKV("changepos", change_position);
    return result;
}

// clang-format off
static const CRPCCommand commands[] =
{ //  category              name                        actor (function)           argNames
    //  --------------------- ------------------------    -----------------------    ----------
#if ENABLE_MINER
    { "generating",         "generate",                         &generate,                      {"nblocks","maxtries"} },
#else
    { "hidden",             "generate",                         &generate,                      {"nblocks","maxtries"} }, // Hidden as it isn't functional, just an error to let people know if miner isn't compiled
#endif //ENABLE_MINER
    { "hidden",             "instantsendtoaddress",             &instantsendtoaddress,          {} },
    { "hidden",             "resendwallettransactions",         &resendwallettransactions,      {} },
    { "rawtransactions",    "fundrawtransaction",               &fundrawtransaction,            {"hexstring","options"} },
    { "wallet",             "abandontransaction",               &abandontransaction,            {"txid"} },
    { "wallet",             "abortrescan",                      &abortrescan,                   {} },
    { "wallet",             "addmultisigaddress",               &addmultisigaddress,            {"nrequired","keys","label"} },
    { "wallet",             "backupwallet",                     &backupwallet,                  {"destination"} },
    { "wallet",             "createwallet",                     &createwallet,                  {"wallet_name", "disable_private_keys"} },
    { "wallet",             "dumphdinfo",                       &dumphdinfo,                    {} },
    { "wallet",             "dumpprivkey",                      &dumpprivkey,                   {"address"}  },
    { "wallet",             "dumpwallet",                       &dumpwallet,                    {"filename"} },
    { "wallet",             "encryptwallet",                    &encryptwallet,                 {"passphrase"} },
    { "wallet",             "getaddressesbylabel",              &getaddressesbylabel,           {"label"} },
    { "wallet",             "getaddressinfo",                   &getaddressinfo,                {"address"} },
    { "wallet",             "getbalance",                       &getbalance,                    {"dummy","minconf","addlocked","include_watchonly"} },
    { "wallet",             "getnewaddress",                    &getnewaddress,                 {"label"} },
    { "wallet",             "getrawchangeaddress",              &getrawchangeaddress,           {} },
    { "wallet",             "getreceivedbyaddress",             &getreceivedbyaddress,          {"address","minconf","addlocked"} },
    { "wallet",             "getreceivedbylabel",               &getreceivedbylabel,            {"label","minconf","addlocked"} },
    { "wallet",             "gettransaction",                   &gettransaction,                {"txid","include_watchonly"} },
    { "wallet",             "getunconfirmedbalance",            &getunconfirmedbalance,         {} },
    { "wallet",             "getwalletinfo",                    &getwalletinfo,                 {} },
    { "wallet",             "importaddress",                    &importaddress,                 {"address","label","rescan","p2sh"} },
    { "wallet",             "importelectrumwallet",             &importelectrumwallet,          {"filename", "index"} },
    { "wallet",             "importmulti",                      &importmulti,                   {"requests","options"} },
    { "wallet",             "importprivkey",                    &importprivkey,                 {"privkey","label","rescan"} },
    { "wallet",             "importprunedfunds",                &importprunedfunds,             {"rawtransaction","txoutproof"} },
    { "wallet",             "importpubkey",                     &importpubkey,                  {"pubkey","label","rescan"} },
    { "wallet",             "importwallet",                     &importwallet,                  {"filename"} },
    { "wallet",             "keepass",                          &keepass,                       {} },
    { "wallet",             "keypoolrefill",                    &keypoolrefill,                 {"newsize"} },
    { "wallet",             "listaddressbalances",              &listaddressbalances,           {"minamount"} },
    { "wallet",             "listaddressgroupings",             &listaddressgroupings,          {} },
    { "wallet",             "listlabels",                       &listlabels,                    {"purpose"} },
    { "wallet",             "listlockunspent",                  &listlockunspent,               {} },
    { "wallet",             "listreceivedbyaddress",            &listreceivedbyaddress,         {"minconf","addlocked","include_empty","include_watchonly","address_filter"} },
    { "wallet",             "listreceivedbylabel",              &listreceivedbylabel,           {"minconf","addlocked","include_empty","include_watchonly"} },
    { "wallet",             "listsinceblock",                   &listsinceblock,                {"blockhash","target_confirmations","include_watchonly","include_removed"} },
    { "wallet",             "listtransactions",                 &listtransactions,              {"label|dummy","count","skip","include_watchonly"} },
    { "wallet",             "listunspent",                      &listunspent,                   {"minconf","maxconf","addresses","include_unsafe","query_options"} },
    { "wallet",             "listwalletdir",                    &listwalletdir,                 {} },
    { "wallet",             "listwallets",                      &listwallets,                   {} },
    { "wallet",             "loadwallet",                       &loadwallet,                    {"filename"} },
    { "wallet",             "lockunspent",                      &lockunspent,                   {"unlock","transactions"} },
    { "wallet",             "removeprunedfunds",                &removeprunedfunds,             {"txid"} },
    { "wallet",             "rescanblockchain",                 &rescanblockchain,              {"start_height", "stop_height"} },
    { "wallet",             "sendmany",                         &sendmany,                      {"dummy","amounts","minconf","addlocked","comment","subtractfeefrom","use_is","use_cj","conf_target","estimate_mode"} },
    { "wallet",             "sendtoaddress",                    &sendtoaddress,                 {"address","amount","comment","comment_to","subtractfeefromamount","use_is","use_cj","conf_target","estimate_mode"} },
    { "wallet",             "setcoinjoinrounds",                &setcoinjoinrounds,             {"rounds"} },
    { "wallet",             "setcoinjoinamount",                &setcoinjoinamount,             {"amount"} },
    { "wallet",             "setlabel",                         &setlabel,                      {"address","label"} },
    { "wallet",             "settxfee",                         &settxfee,                      {"amount"} },
    { "wallet",             "signmessage",                      &signmessage,                   {"address","message"} },
    { "wallet",             "signrawtransactionwithwallet",     &signrawtransactionwithwallet,  {"hexstring","prevtxs","sighashtype"} },
    { "wallet",             "unloadwallet",                     &unloadwallet,                  {"wallet_name"} },
    { "wallet",             "upgradetohd",                      &upgradetohd,                   {"mnemonic", "mnemonicpassphrase", "walletpassphrase"} },
    { "wallet",             "walletlock",                       &walletlock,                    {} },
    { "wallet",             "walletpassphrasechange",           &walletpassphrasechange,        {"oldpassphrase","newpassphrase"} },
    { "wallet",             "walletpassphrase",                 &walletpassphrase,              {"passphrase","timeout","mixingonly"} },
    { "wallet",             "walletprocesspsbt",                &walletprocesspsbt,             {"psbt","sign","sighashtype","bip32derivs"} },
    { "wallet",             "walletcreatefundedpsbt",           &walletcreatefundedpsbt,        {"inputs","outputs","locktime","options","bip32derivs"} },
};
// clang-format on

void RegisterWalletRPCCommands(interfaces::Chain& chain, std::vector<std::unique_ptr<interfaces::Handler>>& handlers)
{
    for (unsigned int vcidx = 0; vcidx < ARRAYLEN(commands); vcidx++)
        handlers.emplace_back(chain.handleRpc(commands[vcidx]));
}