// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin Core developers
// Copyright (c) 2016-2024 The Hush developers
// Distributed under the GPLv3 software license, see the accompanying
// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
/******************************************************************************
 * Copyright © 2014-2019 The SuperNET Developers.                             *
 *                                                                            *
 * See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at                  *
 * the top-level directory of this distribution for the individual copyright  *
 * holder information and the developer policies on copyright and licensing.  *
 *                                                                            *
 * Unless otherwise agreed in a custom licensing agreement, no part of the    *
 * SuperNET software, including this file may be copied, modified, propagated *
 * or distributed except according to the terms contained in the LICENSE file *
 *                                                                            *
 * Removal or modification of this copyright notice is prohibited.            *
 *                                                                            *
 ******************************************************************************/
#include "amount.h"
#include "consensus/upgrades.h"
#include "core_io.h"
#include "init.h"
#include "key_io.h"
#include "main.h"
#include "net.h"
#include "netbase.h"
#include "rpc/server.h"
#include "timedata.h"
#include "transaction_builder.h"
#include "util.h"
#include "utilmoneystr.h"
#include "wallet.h"
#include "walletdb.h"
#include "primitives/transaction.h"
#include "script/interpreter.h"
#include "zcash/zip32.h"
#include "zcash/Note.hpp"
#include "utiltime.h"
#include "asyncrpcoperation.h"
#include "asyncrpcqueue.h"
#include "wallet/asyncrpcoperation_mergetoaddress.h"
#include "wallet/asyncrpcoperation_sendmany.h"
#include "wallet/asyncrpcoperation_shieldcoinbase.h"
#include "consensus/upgrades.h"
#include "sodium.h"
#include <stdint.h>
#include <boost/assign/list_of.hpp>
#include <utf8.h>
#include <univalue.h>
#include <numeric>
#include "hush_defs.h"
#include <string.h>
#include "rpchushwallet.h"
#include "cc/utils.h"
#include "cc/CCinclude.h"

using namespace std;
using namespace libzcash;

extern char SMART_CHAIN_SYMBOL[HUSH_SMART_CHAIN_MAXLEN];
extern std::string ASSETCHAINS_OVERRIDE_PUBKEY;
const std::string ADDR_TYPE_SAPLING = "sapling";
const std::string ADDR_TYPE_AMNESIA = "amnesia";
extern int32_t HUSH_INSYNC;
uint32_t hush_segid32(char *coinaddr);
int32_t hush_dpowconfs(int32_t height,int32_t numconfs);
int32_t hush_isnotaryvout(char *coinaddr,uint32_t tiptime); // needed for ac_private=1 chains only
CBlockIndex *hush_getblockindex(uint256 hash);
extern string randomSietchZaddr();
extern CAmount fConsolidationTxFee;
extern bool fZindex;
extern string randomSietchZaddr();
extern SendManyRecipient newSietchRecipient(string zaddr);
extern string newSietchZaddr();

int64_t nWalletUnlockTime;
static CCriticalSection cs_nWalletUnlockTime;
std::string CCerror;
char *uint256_str(char *dest,uint256 txid);

// Private method:
UniValue z_getoperationstatus_IMPL(const UniValue&, bool);

#define THROW_IF_SYNCING(INSYNC)  if (Params().NetworkIDString() != "regtest" && HUSH_TESTNODE == 0 && INSYNC == 0) { throw runtime_error(strprintf("%s: Extreme Privacy! Chain still syncing at height %d, aborting to prevent linkability analysis. Please wait until FULLY SYNCED and try again.",__FUNCTION__,chainActive.Tip()->GetHeight())); }

int tx_height( const uint256 &hash );

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

bool EnsureWalletIsAvailable(bool avoidException)
{
    if (!pwalletMain)
    {
        if (!avoidException)
            throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found (disabled)");
        else
            return false;
    }
    return true;
}

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

void Lock2NSPV(const CPubKey &pk)
{
    if (!pk.IsValid())
    {
        ENTER_CRITICAL_SECTION(cs_main);
        ENTER_CRITICAL_SECTION(pwalletMain->cs_wallet);
    }
}

void Unlock2NSPV(const CPubKey &pk)
{
    if (!pk.IsValid())
    {
        LEAVE_CRITICAL_SECTION(cs_main);
        LEAVE_CRITICAL_SECTION(pwalletMain->cs_wallet);
    }
}

void WalletTxToJSON(const CWalletTx& wtx, UniValue& entry)
{
    int confirms = wtx.GetDepthInMainChain();
    entry.push_back(Pair("rawconfirmations", confirms));
    if (wtx.IsCoinBase())
        entry.push_back(Pair("generated", true));
    if (confirms > 0)
    {
        entry.push_back(Pair("confirmations", hush_dpowconfs((int32_t)hush_blockheight(wtx.hashBlock),confirms)));
        entry.push_back(Pair("blockhash", wtx.hashBlock.GetHex()));
        entry.push_back(Pair("blockindex", wtx.nIndex));
        entry.push_back(Pair("blocktime", (uint64_t)hush_blocktime(wtx.hashBlock)));
        entry.push_back(Pair("expiryheight", (int64_t)wtx.nExpiryHeight));
    } else entry.push_back(Pair("confirmations", confirms));
    uint256 hash = wtx.GetHash();
    entry.push_back(Pair("txid", hash.GetHex()));
    UniValue conflicts(UniValue::VARR);
    BOOST_FOREACH(const uint256& conflict, wtx.GetConflicts())
        conflicts.push_back(conflict.GetHex());
    entry.push_back(Pair("walletconflicts", conflicts));
    entry.push_back(Pair("time", wtx.GetTxTime()));
    entry.push_back(Pair("timereceived", (int64_t)wtx.nTimeReceived));
    BOOST_FOREACH(const PAIRTYPE(string,string)& item, wtx.mapValue)
        entry.push_back(Pair(item.first, item.second));

}

string AccountFromValue(const UniValue& value)
{
    string strAccount = value.get_str();
    //if (strAccount != "")
    //    throw JSONRPCError(RPC_WALLET_ACCOUNTS_UNSUPPORTED, "Accounts are unsupported");
    return strAccount;
}

char *hush_chainname()
{
     return(SMART_CHAIN_SYMBOL);
}

CAmount getBalanceZaddr(std::string address, int minDepth = 1, bool ignoreUnspendable=true) {
    CAmount balance = 0;
    std::vector<SaplingNoteEntry> saplingEntries;
    LOCK2(cs_main, pwalletMain->cs_wallet);
    pwalletMain->GetFilteredNotes(saplingEntries, address, minDepth, true, ignoreUnspendable);
    for (auto & entry : saplingEntries) {
        balance += CAmount(entry.note.value());
    }
    return balance;
}

void OS_randombytes(unsigned char *x,long xlen);

UniValue getnewaddress(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if ( HUSH_NSPV_FULLNODE && !EnsureWalletIsAvailable(fHelp) )
        return NullUniValue;

    if (fHelp || params.size() > 1)
        throw runtime_error(
            "getnewaddress ( \"account\" )\n"
            "\nReturns a new " + strprintf("%s",hush_chainname()) + " address for receiving payments.\n"
            "\nArguments:\n"
            "1. \"account\"        (string, optional) DEPRECATED. If provided, it MUST be set to the empty string \"\" to represent the default account. Passing any other string will result in an error.\n"
            "\nResult:\n"
            "\"" + strprintf("%s",hush_chainname()) + "_address\"    (string) The new " + strprintf("%s",hush_chainname()) + " address\n"
            "\nExamples:\n"
            + HelpExampleCli("getnewaddress", "")
            + HelpExampleRpc("getnewaddress", "")
        );

    if ( HUSH_NSPV_SUPERLITE )
    {
        UniValue result(UniValue::VOBJ); uint8_t priv32[32];
#ifndef __WIN32
        OS_randombytes(priv32,sizeof(priv32));
#else
        randombytes_buf(priv32,sizeof(priv32));
#endif
        CKey key;
        key.Set(&priv32[0],&priv32[32], true);
        CPubKey pubkey = key.GetPubKey();
        CKeyID vchAddress = pubkey.GetID();
        result.push_back(Pair("wif",EncodeSecret(key)));
        result.push_back(Pair("address",EncodeDestination(vchAddress)));
        result.push_back(Pair("pubkey",HexStr(pubkey)));
        return(result);
    }
    LOCK2(cs_main, pwalletMain->cs_wallet);

    // Parse the account first so we don't generate a key if there's an error
    string strAccount;
    if (params.size() > 0)
        strAccount = AccountFromValue(params[0]);

    if (!pwalletMain->IsLocked())
        pwalletMain->TopUpKeyPool();

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

    pwalletMain->SetAddressBook(keyID, strAccount, "receive");

    return EncodeDestination(keyID);
}


CTxDestination GetAccountAddress(std::string strAccount, bool bForceNew=false)
{
    CWalletDB walletdb(pwalletMain->strWalletFile);

    CAccount account;
    walletdb.ReadAccount(strAccount, account);

    bool bKeyUsed = false;

    // Check if the current key has been used
    if (account.vchPubKey.IsValid())
    {
        CScript scriptPubKey = GetScriptForDestination(account.vchPubKey.GetID());
        for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin();
             it != pwalletMain->mapWallet.end() && account.vchPubKey.IsValid();
             ++it)
        {
            const CWalletTx& wtx = (*it).second;
            BOOST_FOREACH(const CTxOut& txout, wtx.vout)
                if (txout.scriptPubKey == scriptPubKey)
                    bKeyUsed = true;
        }
    }

    // Generate a new key
    if (!account.vchPubKey.IsValid() || bForceNew || bKeyUsed)
    {
        if (!pwalletMain->GetKeyFromPool(account.vchPubKey))
            throw JSONRPCError(RPC_WALLET_KEYPOOL_RAN_OUT, "Error: Keypool ran out, please call keypoolrefill first");

        pwalletMain->SetAddressBook(account.vchPubKey.GetID(), strAccount, "receive");
        walletdb.WriteAccount(strAccount, account);
    }

    return account.vchPubKey.GetID();
}

UniValue getaccountaddress(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() != 1)
        throw runtime_error(
            "getaccountaddress \"account\"\n"
            "\nDEPRECATED. Returns the current " + strprintf("%s",hush_chainname()) + " address for receiving payments to this account.\n"
            "\nArguments:\n"
            "1. \"account\"       (string, required) MUST be set to the empty string \"\" to represent the default account. Passing any other string will result in an error.\n"
            "\nResult:\n"
            "\"" + strprintf("%s",hush_chainname()) + "_address\"   (string) The account " + strprintf("%s",hush_chainname()) + " address\n"
            "\nExamples:\n"
            + HelpExampleCli("getaccountaddress", "")
            + HelpExampleCli("getaccountaddress", "\"\"")
            + HelpExampleCli("getaccountaddress", "\"myaccount\"")
            + HelpExampleRpc("getaccountaddress", "\"myaccount\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    // Parse the account first so we don't generate a key if there's an error
    string strAccount = AccountFromValue(params[0]);

    UniValue ret(UniValue::VSTR);

    ret = EncodeDestination(GetAccountAddress(strAccount));
    return ret;
}


UniValue getrawchangeaddress(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 1)
        throw runtime_error(
            "getrawchangeaddress\n"
            "\nReturns a new " + strprintf("%s",hush_chainname()) + " address, for receiving change.\n"
            "This is for use with raw transactions, NOT normal use.\n"
            "\nResult:\n"
            "\"address\"    (string) The address\n"
            "\nExamples:\n"
            + HelpExampleCli("getrawchangeaddress", "")
            + HelpExampleRpc("getrawchangeaddress", "")
       );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    if (!pwalletMain->IsLocked())
        pwalletMain->TopUpKeyPool();

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

    reservekey.KeepKey();

    CKeyID keyID = vchPubKey.GetID();

    return EncodeDestination(keyID);
}


UniValue setaccount(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 1 || params.size() > 2)
        throw runtime_error(
            "setaccount \"" + strprintf("%s",hush_chainname()) + "_address\" \"account\"\n"
            "\nDEPRECATED. Sets the account associated with the given address.\n"
            "\nArguments:\n"
            "1. \"" + strprintf("%s",hush_chainname()) + "_address\"  (string, required) The " + strprintf("%s",hush_chainname()) + " address to be associated with an account.\n"
            "2. \"account\"         (string, required) MUST be set to the empty string \"\" to represent the default account. Passing any other string will result in an error.\n"
            "\nExamples:\n"
            + HelpExampleCli("setaccount", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" \"tabby\"")
            + HelpExampleRpc("setaccount", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\", \"tabby\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

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

    string strAccount;
    if (params.size() > 1)
        strAccount = AccountFromValue(params[1]);

    // Only add the account if the address is yours.
    if (IsMine(*pwalletMain, dest)) {
        // Detect when changing the account of an address that is the 'unused current key' of another account:
        if (pwalletMain->mapAddressBook.count(dest)) {
            std::string strOldAccount = pwalletMain->mapAddressBook[dest].name;
            if (dest == GetAccountAddress(strOldAccount)) {
                GetAccountAddress(strOldAccount, true);
            }
        }
        pwalletMain->SetAddressBook(dest, strAccount, "receive");
    }
    else
        throw JSONRPCError(RPC_MISC_ERROR, "setaccount can only be used with own address");

    return NullUniValue;
}


UniValue getaccount(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() != 1)
        throw runtime_error(
            "getaccount \"" + strprintf("%s",hush_chainname()) + "_address\"\n"
            "\nDEPRECATED. Returns the account associated with the given address.\n"
            "\nArguments:\n"
            "1. \"" + strprintf("%s",hush_chainname()) + "_address\"  (string, required) The " + strprintf("%s",hush_chainname()) + " address for account lookup.\n"
            "\nResult:\n"
            "\"accountname\"        (string) the account address\n"
            "\nExamples:\n"
            + HelpExampleCli("getaccount", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\"")
            + HelpExampleRpc("getaccount", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

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

    std::string strAccount;
    std::map<CTxDestination, CAddressBookData>::iterator mi = pwalletMain->mapAddressBook.find(dest);
    if (mi != pwalletMain->mapAddressBook.end() && !(*mi).second.name.empty()) {
        strAccount = (*mi).second.name;
    }
    return strAccount;
}

UniValue listaddresses(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() != 0)
        throw runtime_error(
            "listaddresses\n"
            "\nResult:\n"
            "[                     (json array of string)\n"
            "  \"" + strprintf("%s",hush_chainname()) + "_address\"  (string) a " + strprintf("%s",hush_chainname()) + " address\n"
            "  ,...\n"
            "]\n"
            "\nExamples:\n"
            + HelpExampleCli("listaddresses", "")
            + HelpExampleRpc("listaddresses", "")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    // Find all taddrs
    UniValue ret(UniValue::VARR);
    for (const std::pair<CTxDestination, CAddressBookData>& item : pwalletMain->mapAddressBook) {
        const CTxDestination& dest = item.first;
        const std::string& strName = item.second.name;
        ret.push_back(EncodeDestination(dest));
    }
    return ret;
}

UniValue getaddressesbyaccount(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() != 1)
        throw runtime_error(
            "getaddressesbyaccount \"account\"\n"
            "\nDEPRECATED. Returns the list of addresses for the given account.\n"
            "\nArguments:\n"
            "1. \"account\"  (string, required) MUST be set to the empty string \"\" to represent the default account. Passing any other string will result in an error.\n"
            "\nResult:\n"
            "[                     (json array of string)\n"
            "  \"" + strprintf("%s",hush_chainname()) + "_address\"  (string) a " + strprintf("%s",hush_chainname()) + " address associated with the given account\n"
            "  ,...\n"
            "]\n"
            "\nExamples:\n"
            + HelpExampleCli("getaddressesbyaccount", "\"\"")
            + HelpExampleRpc("getaddressesbyaccount", "\"\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    string strAccount = AccountFromValue(params[0]);

    // Find all addresses that have the given account
    UniValue ret(UniValue::VARR);
    for (const std::pair<CTxDestination, CAddressBookData>& item : pwalletMain->mapAddressBook) {
        const CTxDestination& dest = item.first;
        const std::string& strName = item.second.name;
        if (strName == strAccount) {
            ret.push_back(EncodeDestination(dest));
        }
    }
    return ret;
}

static void SendMoney(const CTxDestination &address, CAmount nValue, bool fSubtractFeeFromAmount, CWalletTx& wtxNew,uint8_t *opretbuf,int32_t opretlen,long int opretValue)
{
    CAmount curBalance = pwalletMain->GetBalance();

    // Check amount
    if (nValue <= 0)
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid amount");
    if (nValue > curBalance)
        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Insufficient funds");

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

    // Create and send the transaction
    CReserveKey reservekey(pwalletMain);
    CAmount nFeeRequired;
    std::string strError;
    vector<CRecipient> vecSend;
    int nChangePosRet = -1;
    CRecipient recipient = {scriptPubKey, nValue, fSubtractFeeFromAmount};
    vecSend.push_back(recipient);
    if ( opretlen > 0 && opretbuf != 0 )
    {
        CScript opretpubkey; int32_t i; uint8_t *ptr;
        opretpubkey.resize(opretlen);
        for (i=0; i<opretlen; i++)
        {
            opretpubkey[i] = opretbuf[i];
        }
        CRecipient opret = { opretpubkey, opretValue, false };
        vecSend.push_back(opret);
    }
    if (!pwalletMain->CreateTransaction(vecSend, wtxNew, reservekey, nFeeRequired, nChangePosRet, strError)) {
        if (!fSubtractFeeFromAmount && nValue + nFeeRequired > pwalletMain->GetBalance())
            strError = strprintf("Error: This transaction requires a transaction fee of at least %s because of its amount, complexity, or use of recently received funds!", FormatMoney(nFeeRequired));
        throw JSONRPCError(RPC_WALLET_ERROR, strError);
    }
    if (!pwalletMain->CommitTransaction(wtxNew, reservekey))
        throw JSONRPCError(RPC_WALLET_ERROR, "Error: The transaction was rejected! This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here.");
}


UniValue sendtoaddress(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 2 || params.size() > 5)
        throw runtime_error(
            "sendtoaddress \"" + strprintf("%s",hush_chainname()) + "_address\" amount ( \"comment\" \"comment-to\" subtractfeefromamount )\n"
            "\nSend an amount to a given address. The amount is a real and is rounded to the nearest 0.00000001\n"
            + HelpRequiringPassphrase() +
            "\nArguments:\n"
            "1. \"" + strprintf("%s",hush_chainname()) + "_address\"  (string, required) The " + strprintf("%s",hush_chainname()) + " address to send to.\n"
            "2. \"amount\"      (numeric, required) The amount in " + strprintf("%s",hush_chainname()) + " to send. eg 0.1\n"
            "3. \"comment\"     (string, optional) A comment used to store what the transaction is for. \n"
            "                             This is not part of the transaction, just kept in your wallet.\n"
            "4. \"comment-to\"  (string, optional) 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.\n"
            "5. subtractfeefromamount  (boolean, optional, default=false) The fee will be deducted from the amount being sent.\n"
            "                             The recipient will receive less " + strprintf("%s",hush_chainname()) + " than you enter in the amount field.\n"
            "\nResult:\n"
            "\"transactionid\"  (string) The transaction id.\n"
            "\nExamples:\n"
            + HelpExampleCli("sendtoaddress", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" 0.1")
            + HelpExampleCli("sendtoaddress", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" 0.1 \"donation\" \"Hush Puppy Freedom Fund\"")
            + HelpExampleCli("sendtoaddress", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" 0.1 \"\" \"\" true")
            + HelpExampleRpc("sendtoaddress", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\", 0.1, \"donation\", \"Hush Puppy Freedom Fund\"")
        );

    if ( ASSETCHAINS_PRIVATE != 0 && AmountFromValue(params[1]) > 0 )
    {
        if ( hush_isnotaryvout((char *)params[0].get_str().c_str(),chainActive.LastTip()->nTime) == 0 )
        {
            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid " + strprintf("%s",hush_chainname()) + " address");
        }
    }
    LOCK2(cs_main, pwalletMain->cs_wallet);

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

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

    // Wallet comments
    CWalletTx wtx;
    if (params.size() > 2 && !params[2].isNull() && !params[2].get_str().empty())
        wtx.mapValue["comment"] = params[2].get_str();
    if (params.size() > 3 && !params[3].isNull() && !params[3].get_str().empty())
        wtx.mapValue["to"]      = params[3].get_str();

    bool fSubtractFeeFromAmount = false;
    if (params.size() > 4)
        fSubtractFeeFromAmount = params[4].get_bool();

    EnsureWalletIsUnlocked();

    SendMoney(dest, nAmount, fSubtractFeeFromAmount, wtx,0,0,0);

    return wtx.GetHash().GetHex();
}

#include "hush_defs.h"

#define HUSH_KVPROTECTED 1
#define HUSH_KVBINARY 2
#define HUSH_KVDURATION 1440
#define DRAGON_MAXSCRIPTSIZE 10001
int32_t hush_opreturnscript(uint8_t *script,uint8_t type,uint8_t *opret,int32_t opretlen);
extern int32_t HUSH_PAX;
int32_t hush_is_issuer();
int32_t dragon_rwnum(int32_t rwflag,uint8_t *serialized,int32_t len,void *endianedp);
int32_t hush_isrealtime(int32_t *hushheightp);
int32_t hush_kvsearch(uint256 *refpubkeyp,int32_t current_height,uint32_t *flagsp,int32_t *heightp,uint8_t value[DRAGON_MAXSCRIPTSIZE],uint8_t *key,int32_t keylen);
int32_t hush_kvcmp(uint8_t *refvalue,uint16_t refvaluesize,uint8_t *value,uint16_t valuesize);
uint64_t hush_kvfee(uint32_t flags,int32_t opretlen,int32_t keylen);
uint256 hush_kvsig(uint8_t *buf,int32_t len,uint256 privkey);
int32_t hush_kvduration(uint32_t flags);
uint256 hush_kvprivkey(uint256 *pubkeyp,char *passphrase);
int32_t hush_kvsigverify(uint8_t *buf,int32_t len,uint256 _pubkey,uint256 sig);

UniValue kvupdate(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    static uint256 zeroes;
    CWalletTx wtx; UniValue ret(UniValue::VOBJ);
    uint8_t keyvalue[DRAGON_MAXSCRIPTSIZE*8],opretbuf[DRAGON_MAXSCRIPTSIZE*8]; int32_t i,coresize,haveprivkey,duration,opretlen,height; uint16_t keylen=0,valuesize=0,refvaluesize=0; uint8_t *key,*value=0; uint32_t flags,tmpflags,n; struct hush_kv *ptr; uint64_t fee; uint256 privkey,pubkey,refpubkey,sig;
    if (fHelp || params.size() < 3 )
        throw runtime_error(
            "kvupdate key \"value\" days passphrase\n"
            "\nStore a key value. This feature is only available for non-z2z chains.\n"
            "\nArguments:\n"
            "1. key                      (string, required) key\n"
            "2. \"value\"                (string, required) value\n"
            "3. days                     (numeric, required) amount of days(1440 blocks/day) before the key expires. Minimum 1 day\n"
            "4. passphrase               (string, optional) passphrase required to update this key\n"
            "\nResult:\n"
            "{\n"
            "  \"coin\": \"xxxxx\",          (string) chain the key is stored on\n"
            "  \"height\": xxxxx,            (numeric) height the key was stored at\n"
            "  \"expiration\": xxxxx,        (numeric) height the key will expire\n"
            "  \"flags\": x,                 (string) amount of days the key will be stored \n"
            "  \"key\": \"xxxxx\",           (numeric) stored key\n"
            "  \"keylen\": xxxxx,            (numeric) length of the key\n"
            "  \"value\": \"xxxxx\"          (numeric) stored value\n"
            "  \"valuesize\": xxxxx,         (string) length of the stored value\n"
            "  \"fee\": xxxxx                (string) transaction fee paid to store the key\n"
            "  \"txid\": \"xxxxx\"           (string) transaction id\n"
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("kvupdate", "examplekey \"examplevalue\" 2 examplepassphrase")
            + HelpExampleRpc("kvupdate", "\"examplekey\",\"examplevalue\",\"2\",\"examplepassphrase\"")
        );
    if (!EnsureWalletIsAvailable(fHelp))
        return 0;

    if (ASSETCHAINS_PRIVATE) {
        throw JSONRPCError(RPC_TYPE_ERROR, "This RPC is only available on non z2z chains");
    }

    haveprivkey = 0;
    memset(&sig,0,sizeof(sig));
    memset(&privkey,0,sizeof(privkey));
    memset(&refpubkey,0,sizeof(refpubkey));
    memset(&pubkey,0,sizeof(pubkey));
    if ( (n= (int32_t)params.size()) >= 3 )
    {
        flags = atoi(params[2].get_str().c_str());
    } else flags = 0;
    if ( n >= 4 )
        privkey = hush_kvprivkey(&pubkey,(char *)(n >= 4 ? params[3].get_str().c_str() : "password"));
    haveprivkey = 1;
    flags |= 1;
    /*for (i=0; i<32; i++)
        printf("%02x",((uint8_t *)&privkey)[i]);
    printf(" priv, ");
    for (i=0; i<32; i++)
        printf("%02x",((uint8_t *)&pubkey)[i]);
    printf(" pubkey, privkey derived from (%s)\n",(char *)params[3].get_str().c_str());
    */
    LOCK2(cs_main, pwalletMain->cs_wallet);
    if ( (keylen= (int32_t)strlen(params[0].get_str().c_str())) > 0 )
    {
        key = (uint8_t *)params[0].get_str().c_str();
        if ( n >= 2 && params[1].get_str().c_str() != 0 )
        {
            value = (uint8_t *)params[1].get_str().c_str();
            valuesize = (int32_t)strlen(params[1].get_str().c_str());
        }
        memcpy(keyvalue,key,keylen);
        if ( (refvaluesize= hush_kvsearch(&refpubkey,chainActive.LastTip()->GetHeight(),&tmpflags,&height,&keyvalue[keylen],key,keylen)) >= 0 )
        {
            if ( (tmpflags & HUSH_KVPROTECTED) != 0 )
            {
                if ( memcmp(&refpubkey,&pubkey,sizeof(refpubkey)) != 0 )
                {
                    ret.push_back(Pair("error",(char *)"cant modify write once key without passphrase"));
                    return ret;
                }
            }
            if ( keylen+refvaluesize <= sizeof(keyvalue) )
            {
                sig = hush_kvsig(keyvalue,keylen+refvaluesize,privkey);
                if ( hush_kvsigverify(keyvalue,keylen+refvaluesize,refpubkey,sig) < 0 )
                {
                    ret.push_back(Pair("error",(char *)"error verifying sig, passphrase is probably wrong"));
                    LogPrintf("VERIFY ERROR\n");
                    return ret;
                }
            }
        }
        // The SMART_CHAIN_SYMBOL[0]==0 fallback is dead on DragonX (symbol is always "DRAGONX"); kept for defensiveness.
        ret.push_back(Pair("coin",(char *)(SMART_CHAIN_SYMBOL[0] == 0 ? "DRAGONX" : SMART_CHAIN_SYMBOL)));
        height = chainActive.LastTip()->GetHeight();
        if ( memcmp(&zeroes,&refpubkey,sizeof(refpubkey)) != 0 )
            ret.push_back(Pair("owner",refpubkey.GetHex()));
        ret.push_back(Pair("height", (int64_t)height));
        duration = hush_kvduration(flags); //((flags >> 2) + 1) * HUSH_KVDURATION;
        ret.push_back(Pair("expiration", (int64_t)(height+duration)));
        ret.push_back(Pair("flags",(int64_t)flags));
        ret.push_back(Pair("key",params[0].get_str()));
        ret.push_back(Pair("keylen",(int64_t)keylen));
        if ( n >= 2 && params[1].get_str().c_str() != 0 )
        {
            ret.push_back(Pair("value",params[1].get_str()));
            ret.push_back(Pair("valuesize",valuesize));
        }
        dragon_rwnum(1,&keyvalue[0],sizeof(keylen),&keylen);
        dragon_rwnum(1,&keyvalue[2],sizeof(valuesize),&valuesize);
        dragon_rwnum(1,&keyvalue[4],sizeof(height),&height);
        dragon_rwnum(1,&keyvalue[8],sizeof(flags),&flags);
        memcpy(&keyvalue[12],key,keylen);
        if ( value != 0 )
            memcpy(&keyvalue[12 + keylen],value,valuesize);
        coresize = (int32_t)(sizeof(flags)+sizeof(height)+sizeof(uint16_t)*2+keylen+valuesize);
        if ( haveprivkey != 0 )
        {
            for (i=0; i<32; i++)
                keyvalue[12 + keylen + valuesize + i] = ((uint8_t *)&pubkey)[i];
            coresize += 32;
            if ( refvaluesize >=0 )
            {
                for (i=0; i<32; i++)
                    keyvalue[12 + keylen + valuesize + 32 + i] = ((uint8_t *)&sig)[i];
                coresize += 32;
            }
        }
        if ( (opretlen= hush_opreturnscript(opretbuf,'K',keyvalue,coresize)) == 40 )
            opretlen++;
        EnsureWalletIsUnlocked();
        fee = hush_kvfee(flags,opretlen,keylen);
        ret.push_back(Pair("fee",(double)fee/COIN));
        CBitcoinAddress destaddress(CRYPTO555_HUSHADDR);
        if (!destaddress.IsValid())
            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid destination address!");
        SendMoney(destaddress.Get(),10000,false,wtx,opretbuf,opretlen,fee);
        ret.push_back(Pair("txid",wtx.GetHash().GetHex()));
    } else ret.push_back(Pair("error",(char *)"null key"));
    return ret;
}


UniValue listaddressgroupings(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp)
        throw runtime_error(
            "listaddressgroupings\n"
            "\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"
            "\nResult:\n"
            "[\n"
            "  [\n"
            "    [\n"
            "      \"" + strprintf("%s",hush_chainname()) + " address\",     (string) The " + strprintf("%s",hush_chainname()) + " address\n"
            "      amount,                 (numeric) The amount in " + strprintf("%s",hush_chainname()) + "\n"
            "      \"account\"             (string, optional) The account (DEPRECATED)\n"
            "    ]\n"
            "    ,...\n"
            "  ]\n"
            "  ,...\n"
            "]\n"
            "\nExamples:\n"
            + HelpExampleCli("listaddressgroupings", "")
            + HelpExampleRpc("listaddressgroupings", "")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    UniValue jsonGroupings(UniValue::VARR);
    std::map<CTxDestination, CAmount> balances = pwalletMain->GetAddressBalances();
    for (const std::set<CTxDestination>& grouping : pwalletMain->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 (pwalletMain->mapAddressBook.find(address) != pwalletMain->mapAddressBook.end()) {
                    addressInfo.push_back(pwalletMain->mapAddressBook.find(address)->second.name);
                }
            }
            jsonGrouping.push_back(addressInfo);
        }
        jsonGroupings.push_back(jsonGrouping);
    }
    return jsonGroupings;
}

UniValue signmessage(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() != 2)
        throw runtime_error(
            "signmessage \"t-addr\" \"message\"\n"
            "\nSign a message with the private key of a t-addr"
            + HelpRequiringPassphrase() + "\n"
            "\nArguments:\n"
            "1. \"t-addr\"  (string, required) The transparent address to use for the private key.\n"
            "2. \"message\"         (string, required) The message to create a signature of.\n"
            "\nResult:\n"
            "\"signature\"          (string) The signature of the message encoded in base 64\n"
            "\nExamples:\n"
            "\nUnlock the wallet for 30 seconds\n"
            + HelpExampleCli("walletpassphrase", "\"mypassphrase\" 30") +
            "\nCreate the signature\n"
            + HelpExampleCli("signmessage", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" \"my message\"") +
            "\nVerify the signature\n"
            + HelpExampleCli("verifymessage", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" \"signature\" \"my message\"") +
            "\nAs json rpc\n"
            + HelpExampleRpc("signmessage", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\", \"my message\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    EnsureWalletIsUnlocked();

    string strAddress = params[0].get_str();
    string strMessage = 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 (!pwalletMain->GetKey(*keyID, key)) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Private key not available");
    }

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

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

    return EncodeBase64(&vchSig[0], vchSig.size());
}

UniValue getreceivedbyaddress(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 1 || params.size() > 2)
        throw runtime_error(
            "getreceivedbyaddress \"" + strprintf("%s",hush_chainname()) + "_address\" ( minconf )\n"
            "\nReturns the total amount received by the given " + strprintf("%s",hush_chainname()) + " address in transactions with at least minconf confirmations.\n"
            "\nArguments:\n"
            "1. \"" + strprintf("%s",hush_chainname()) + "_address\"  (string, required) The " + strprintf("%s",hush_chainname()) + " address for transactions.\n"
            "2. minconf             (numeric, optional, default=1) Only include transactions confirmed at least this many times.\n"
            "\nResult:\n"
            "amount   (numeric) The total amount in " + strprintf("%s",hush_chainname()) + " received at this address.\n"
            "\nExamples:\n"
            "\nThe amount from transactions with at least 1 confirmation\n"
            + HelpExampleCli("getreceivedbyaddress", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\"") +
            "\nThe amount including unconfirmed transactions, zero confirmations\n"
            + HelpExampleCli("getreceivedbyaddress", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" 0") +
            "\nThe amount with at least 6 confirmations, very safe\n"
            + HelpExampleCli("getreceivedbyaddress", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" 6") +
            "\nAs a json rpc call\n"
            + HelpExampleRpc("getreceivedbyaddress", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\", 6")
       );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    // Bitcoin address
    CTxDestination dest = DecodeDestination(params[0].get_str());
    if (!IsValidDestination(dest)) {
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid DragonX address!");
    }
    CScript scriptPubKey = GetScriptForDestination(dest);
    if (!IsMine(*pwalletMain, scriptPubKey)) {
        return ValueFromAmount(0);
    }

    // Minimum confirmations
    int nMinDepth = 1;
    if (params.size() > 1)
        nMinDepth = params[1].get_int();

    // Tally
    CAmount nAmount = 0;
    for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
    {
        const CWalletTx& wtx = (*it).second;
        if (wtx.IsCoinBase() || !CheckFinalTx(wtx))
            continue;

        BOOST_FOREACH(const CTxOut& txout, wtx.vout)
            if (txout.scriptPubKey == scriptPubKey) {
                int nDepth    = wtx.GetDepthInMainChain();
                if( nMinDepth > 1 ) {
                    int nHeight    = tx_height(wtx.GetHash());
                    int dpowconfs  = hush_dpowconfs(nHeight, nDepth);
                    if (dpowconfs >= nMinDepth) {
                        nAmount   += txout.nValue;
                    }
                } else {
                    if (nDepth  >= nMinDepth) {
                        nAmount += txout.nValue;
                    }
                }
            }
    }

    return  ValueFromAmount(nAmount);
}


UniValue getreceivedbyaccount(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 1 || params.size() > 2)
        throw runtime_error(
            "getreceivedbyaccount \"account\" ( minconf )\n"
            "\nDEPRECATED. Returns the total amount received by addresses with <account> in transactions with at least [minconf] confirmations.\n"
            "\nArguments:\n"
            "1. \"account\"      (string, required) MUST be set to the empty string \"\" to represent the default account. Passing any other string will result in an error.\n"
            "2. minconf          (numeric, optional, default=1) Only include transactions confirmed at least this many times.\n"
            "\nResult:\n"
            "amount              (numeric) The total amount in " + strprintf("%s",hush_chainname()) + " received for this account.\n"
            "\nExamples:\n"
            "\nAmount received by the default account with at least 1 confirmation\n"
            + HelpExampleCli("getreceivedbyaccount", "\"\"") +
            "\nAmount received at the tabby account including unconfirmed amounts with zero confirmations\n"
            + HelpExampleCli("getreceivedbyaccount", "\"tabby\" 0") +
            "\nThe amount with at least 6 confirmation, very safe\n"
            + HelpExampleCli("getreceivedbyaccount", "\"tabby\" 6") +
            "\nAs a json rpc call\n"
            + HelpExampleRpc("getreceivedbyaccount", "\"tabby\", 6")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    // Minimum confirmations
    int nMinDepth = 1;
    if (params.size() > 1)
        nMinDepth = params[1].get_int();

    // Get the set of pub keys assigned to account
    string strAccount = AccountFromValue(params[0]);
    set<CTxDestination> setAddress = pwalletMain->GetAccountAddresses(strAccount);

    // Tally
    CAmount nAmount = 0;
    for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
    {
        const CWalletTx& wtx = (*it).second;
        if (wtx.IsCoinBase() || !CheckFinalTx(wtx))
            continue;

        BOOST_FOREACH(const CTxOut& txout, wtx.vout)
        {
            CTxDestination address;
            if (ExtractDestination(txout.scriptPubKey, address) && IsMine(*pwalletMain, address) && setAddress.count(address))
                if (wtx.GetDepthInMainChain() >= nMinDepth)
                    nAmount += txout.nValue;
        }
    }

    return ValueFromAmount(nAmount);
}


CAmount GetAccountBalance(CWalletDB& walletdb, const string& strAccount, int nMinDepth, const isminefilter& filter)
{
    CAmount nBalance = 0;

    // Tally wallet transactions
    for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
    {
        const CWalletTx& wtx = (*it).second;
        if (!CheckFinalTx(wtx) || wtx.GetBlocksToMaturity() > 0 || wtx.GetDepthInMainChain() < 0)
            continue;

        CAmount nReceived, nSent, nFee;
        wtx.GetAccountAmounts(strAccount, nReceived, nSent, nFee, filter);

        int nDepth    = wtx.GetDepthInMainChain();
        if( nMinDepth > 1 ) {
            int nHeight    = tx_height(wtx.GetHash());
            int dpowconfs  = hush_dpowconfs(nHeight, nDepth);
            if (nReceived != 0 && dpowconfs >= nMinDepth) {
                nBalance += nReceived;
            }
        } else {
            if (nReceived != 0 && wtx.GetDepthInMainChain() >= nMinDepth) {
                nBalance += nReceived;
            }
        }
        nBalance -= nSent + nFee;
    }

    // Tally internal accounting entries
    nBalance += walletdb.GetAccountCreditDebit(strAccount);

    return nBalance;
}

CAmount GetAccountBalance(const string& strAccount, int nMinDepth, const isminefilter& filter)
{
    CWalletDB walletdb(pwalletMain->strWalletFile);
    return GetAccountBalance(walletdb, strAccount, nMinDepth, filter);
}

UniValue cleanwallettransactions(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 1 )
        throw runtime_error(
            "cleanwallettransactions \"txid\"\n"
            "\nRemove all transparent UTXOs that are spent. You can clear all transactions bar one, by specifiying a txid.\n"
            "\nPlease backup your wallet.dat before running this command.\n"
            "\nArguments:\n"
            "1. \"txid\"    (string, optional) The transaction id to keep.\n"
            "\nResult:\n"
            "{\n"
            "  \"total_transactions\" : n,         (numeric) Transactions in wallet of " + strprintf("%s",hush_chainname()) + "\n"
            "  \"remaining_transactions\" : n,     (numeric) Transactions in wallet after clean.\n"
            "  \"removed_transactions\" : n,       (numeric) The number of transactions removed.\n"
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("cleanwallettransactions", "")
            + HelpExampleCli("cleanwallettransactions","\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\"")
            + HelpExampleRpc("cleanwallettransactions", "")
            + HelpExampleRpc("cleanwallettransactions","\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);
    UniValue ret(UniValue::VOBJ);
    uint256 exception; int32_t txs = pwalletMain->mapWallet.size();
    std::vector<uint256> TxToRemove;
    if (params.size() == 1)
    {
        exception.SetHex(params[0].get_str());
        uint256 tmp_hash; CTransaction tmp_tx;
        if (GetTransaction(exception,tmp_tx,tmp_hash,false))
        {
            if ( !pwalletMain->IsMine(tmp_tx) )
            {
                throw runtime_error("\nThe transaction is not yours!\n");
            } else {
                for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
                {
                    const CWalletTx& wtx = (*it).second;
                    if ( wtx.GetHash() != exception )
                    {
                        TxToRemove.push_back(wtx.GetHash());
                    }
                }
            }
        } else {
            throw runtime_error("\nThe transaction could not be found!\n");
        }
    } else {
        // get all locked utxos to relock them later.
        vector<COutPoint> vLockedUTXO;
        pwalletMain->ListLockedCoins(vLockedUTXO);
        // unlock all coins so that the following call containes all utxos.
        pwalletMain->UnlockAllCoins();
        // listunspent call... this gets us all the txids that are unspent, we search this list for the oldest tx,
        vector<COutput> vecOutputs;
        assert(pwalletMain != NULL);
        pwalletMain->AvailableCoins(vecOutputs, false, NULL, true);
        int32_t oldestTxDepth = 0;
        BOOST_FOREACH(const COutput& out, vecOutputs)
        {
          if ( out.nDepth > oldestTxDepth )
              oldestTxDepth = out.nDepth;
        }
        oldestTxDepth = oldestTxDepth + 1; // add extra block just for safety.
        // lock all the previouly locked coins.
        BOOST_FOREACH(COutPoint &outpt, vLockedUTXO) {
            pwalletMain->LockCoin(outpt);
        }

        // then add all txs in the wallet before this block to the list to remove.
        for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
        {
            const CWalletTx& wtx = (*it).second;
            if (wtx.GetDepthInMainChain() > oldestTxDepth)
                TxToRemove.push_back(wtx.GetHash());
        }
    }

    // erase txs
    BOOST_FOREACH (uint256& hash, TxToRemove)
    {
        pwalletMain->EraseFromWallet(hash);
        LogPrintf("Erased %s from wallet.\n",hash.ToString().c_str());
    }

    // build return JSON for stats.
    int remaining = pwalletMain->mapWallet.size();
    ret.push_back(Pair("total_transactons", (int)txs));
    ret.push_back(Pair("remaining_transactons", (int)remaining));
    ret.push_back(Pair("removed_transactions", (int)(txs-remaining)));
    return  (ret);
}

UniValue getbalance(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 3)
        throw runtime_error(
            "getbalance ( \"account\" minconf includeWatchonly )\n"
            "\nReturns the server's total available balance.\n"
            "\nArguments:\n"
            "1. \"account\"      (string, optional) DEPRECATED. If provided, it MUST be set to the empty string \"\" or to the string \"*\", either of which will give the total available balance. Passing any other string will result in an error.\n"
            "2. minconf          (numeric, optional, default=1) Only include transactions confirmed at least this many times.\n"
            "3. includeWatchonly (bool, optional, default=false) Also include balance in watchonly addresses (see 'importaddress')\n"
            "\nResult:\n"
            "amount              (numeric) The total amount in " + strprintf("%s",hush_chainname()) + " received for this account.\n"
            "\nExamples:\n"
            "\nThe total amount in the wallet\n"
            + HelpExampleCli("getbalance", "") +
            "\nThe total amount in the wallet at least 5 blocks confirmed\n"
            + HelpExampleCli("getbalance", "\"*\" 6") +
            "\nAs a json rpc call\n"
            + HelpExampleRpc("getbalance", "\"*\", 6")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    if (params.size() == 0)
        return  ValueFromAmount(pwalletMain->GetBalance());

    int nMinDepth = 1;
    if (params.size() > 1)
        nMinDepth = params[1].get_int();
    isminefilter filter = ISMINE_SPENDABLE;
    if(params.size() > 2)
        if(params[2].get_bool())
            filter = filter | ISMINE_WATCH_ONLY;

    if (params[0].get_str() == "*") {
        // Calculate total balance a different way from GetBalance()
        // (GetBalance() sums up all unspent TxOuts)
        // getbalance and "getbalance * 1 true" should return the same number
        CAmount nBalance = 0;
        for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
        {
            const CWalletTx& wtx = (*it).second;
            if (!CheckFinalTx(wtx) || wtx.GetBlocksToMaturity() > 0 || wtx.GetDepthInMainChain() < 0)
                continue;

            CAmount allFee;
            string strSentAccount;
            list<COutputEntry> listReceived;
            list<COutputEntry> listSent;
            wtx.GetAmounts(listReceived, listSent, allFee, strSentAccount, filter);

            int nDepth    = wtx.GetDepthInMainChain();
            if( nMinDepth > 1 ) {
                 int nHeight    = tx_height(wtx.GetHash());
                 int dpowconfs  = hush_dpowconfs(nHeight, nDepth);
                 if (dpowconfs >= nMinDepth) {
                    BOOST_FOREACH(const COutputEntry& r, listReceived)
                        nBalance += r.amount;
                 }
             } else {
                 if (nDepth >= nMinDepth) {
                    BOOST_FOREACH(const COutputEntry& r, listReceived)
                        nBalance += r.amount;
                 }
            }
            BOOST_FOREACH(const COutputEntry& s, listSent)
                nBalance -= s.amount;
            nBalance -= allFee;
        }
        return  ValueFromAmount(nBalance);
    }

    string strAccount = AccountFromValue(params[0]);

    CAmount nBalance = GetAccountBalance(strAccount, nMinDepth, filter);

    return ValueFromAmount(nBalance);
}

UniValue getunconfirmedbalance(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 0)
        throw runtime_error(
                "getunconfirmedbalance\n"
                "Returns the server's total unconfirmed balance\n");

    LOCK2(cs_main, pwalletMain->cs_wallet);

    return ValueFromAmount(pwalletMain->GetUnconfirmedBalance());
}


UniValue movecmd(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 3 || params.size() > 5)
        throw runtime_error(
            "move \"fromaccount\" \"toaccount\" amount ( minconf \"comment\" )\n"
            "\nDEPRECATED. Move a specified amount from one account in your wallet to another.\n"
            "\nArguments:\n"
            "1. \"fromaccount\"   (string, required) MUST be set to the empty string \"\" to represent the default account. Passing any other string will result in an error.\n"
            "2. \"toaccount\"     (string, required) MUST be set to the empty string \"\" to represent the default account. Passing any other string will result in an error.\n"
            "3. amount            (numeric) Quantity of " + strprintf("%s",hush_chainname()) + " to move between accounts.\n"
            "4. minconf           (numeric, optional, default=1) Only use funds with at least this many confirmations.\n"
            "5. \"comment\"       (string, optional) An optional comment, stored in the wallet only.\n"
            "\nResult:\n"
            "true|false           (boolean) true if successful.\n"
            "\nExamples:\n"
            "\nMove 0.01 " + strprintf("%s",hush_chainname()) + " from the default account to the account named tabby\n"
            + HelpExampleCli("move", "\"\" \"tabby\" 0.01") +
            "\nMove 0.01 " + strprintf("%s",hush_chainname()) + " timotei to akiko with a comment and funds have 6 confirmations\n"
            + HelpExampleCli("move", "\"timotei\" \"akiko\" 0.01 6 \"happy birthday!\"") +
            "\nAs a json rpc call\n"
            + HelpExampleRpc("move", "\"timotei\", \"akiko\", 0.01, 6, \"happy birthday!\"")
        );
    if ( ASSETCHAINS_PRIVATE != 0 )
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "cant use transparent addresses in private chain");

    LOCK2(cs_main, pwalletMain->cs_wallet);

    string strFrom = AccountFromValue(params[0]);
    string strTo = AccountFromValue(params[1]);
    CAmount nAmount = AmountFromValue(params[2]);
    if (nAmount <= 0)
        throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount for send");
    if (params.size() > 3)
        // unused parameter, used to be nMinDepth, keep type-checking it though
        (void)params[3].get_int();
    string strComment;
    if (params.size() > 4)
        strComment = params[4].get_str();

    CWalletDB walletdb(pwalletMain->strWalletFile);
    if (!walletdb.TxnBegin())
        throw JSONRPCError(RPC_DATABASE_ERROR, "database error");

    int64_t nNow = GetTime();

    // Debit
    CAccountingEntry debit;
    debit.nOrderPos = pwalletMain->IncOrderPosNext(&walletdb);
    debit.strAccount = strFrom;
    debit.nCreditDebit = -nAmount;
    debit.nTime = nNow;
    debit.strOtherAccount = strTo;
    debit.strComment = strComment;
    walletdb.WriteAccountingEntry(debit);

    // Credit
    CAccountingEntry credit;
    credit.nOrderPos = pwalletMain->IncOrderPosNext(&walletdb);
    credit.strAccount = strTo;
    credit.nCreditDebit = nAmount;
    credit.nTime = nNow;
    credit.strOtherAccount = strFrom;
    credit.strComment = strComment;
    walletdb.WriteAccountingEntry(credit);

    if (!walletdb.TxnCommit())
        throw JSONRPCError(RPC_DATABASE_ERROR, "database error");

    return true;
}


UniValue sendfrom(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 3 || params.size() > 6)
        throw runtime_error(
            "sendfrom \"fromaccount\" \"to" + strprintf("%s",hush_chainname()) + "address\" amount ( minconf \"comment\" \"comment-to\" )\n"
            "\nDEPRECATED (use sendtoaddress). Sent an amount from an account to a " + strprintf("%s",hush_chainname()) + " address.\n"
            "The amount is a real and is rounded to the nearest 0.00000001."
            + HelpRequiringPassphrase() + "\n"
            "\nArguments:\n"
            "1. \"fromaccount\"       (string, required) MUST be set to the empty string \"\" to represent the default account. Passing any other string will result in an error.\n"
            "2. \"to" + strprintf("%s",hush_chainname()) + "address\"  (string, required) The " + strprintf("%s",hush_chainname()) + " address to send funds to.\n"
            "3. amount                (numeric, required) The amount in " + strprintf("%s",hush_chainname()) + " (transaction fee is added on top).\n"
            "4. minconf               (numeric, optional, default=1) Only use funds with at least this many confirmations.\n"
            "5. \"comment\"           (string, optional) A comment used to store what the transaction is for. \n"
            "                                     This is not part of the transaction, just kept in your wallet.\n"
            "6. \"comment-to\"        (string, optional) An optional comment to store the name of the person or organization \n"
            "                                     to which you're sending the transaction. This is not part of the transaction, \n"
            "                                     it is just kept in your wallet.\n"
            "\nResult:\n"
            "\"transactionid\"        (string) The transaction id.\n"
            "\nExamples:\n"
            "\nSend 0.01 " + strprintf("%s",hush_chainname()) + " from the default account to the address, must have at least 1 confirmation\n"
            + HelpExampleCli("sendfrom", "\"\" \"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" 0.01") +
            "\nSend 0.01 from the tabby account to the given address, funds must have at least 6 confirmations\n"
            + HelpExampleCli("sendfrom", "\"tabby\" \"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" 0.01 6 \"donation\" \"Hush Puppy Freedom Fund\"") +
            "\nAs a json rpc call\n"
            + HelpExampleRpc("sendfrom", "\"tabby\", \"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\", 0.01, 6, \"donation\", \"Hush Puppy Freedom Fund\"")
        );
    if ( ASSETCHAINS_PRIVATE != 0 )
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Cannot use transparent addresses in private chain");

    LOCK2(cs_main, pwalletMain->cs_wallet);

    std::string strAccount = AccountFromValue(params[0]);
    CTxDestination dest = DecodeDestination(params[1].get_str());
    if (!IsValidDestination(dest)) {
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid address!");
    }
    CAmount nAmount = AmountFromValue(params[2]);
    if (nAmount <= 0)
        throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount for send");
    int nMinDepth = 1;
    if (params.size() > 3)
        nMinDepth = params[3].get_int();

    CWalletTx wtx;
    wtx.strFromAccount = strAccount;
    if (params.size() > 4 && !params[4].isNull() && !params[4].get_str().empty())
        wtx.mapValue["comment"] = params[4].get_str();
    if (params.size() > 5 && !params[5].isNull() && !params[5].get_str().empty())
        wtx.mapValue["to"]      = params[5].get_str();

    EnsureWalletIsUnlocked();

    // Check funds
    CAmount nBalance = GetAccountBalance(strAccount, nMinDepth, ISMINE_SPENDABLE);
    if (nAmount > nBalance)
        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Account has insufficient funds");

    SendMoney(dest, nAmount, false, wtx, 0, 0, 0);

    return wtx.GetHash().GetHex();
}


UniValue sendmany(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 2 || params.size() > 5)
        throw runtime_error(
            "sendmany \"fromaccount\" {\"address\":amount,...} ( minconf \"comment\" [\"address\",...] )\n"
            "\nSend multiple times. Amounts are decimal numbers with at most 8 digits of precision."
            + HelpRequiringPassphrase() + "\n"
            "\nArguments:\n"
            "1. \"fromaccount\"         (string, required) MUST be set to the empty string \"\" to represent the default account. Passing any other string will result in an error.\n"
            "2. \"amounts\"             (string, required) A json object with addresses and amounts\n"
            "    {\n"
            "      \"address\":amount   (numeric) The " + strprintf("%s",hush_chainname()) + " address is the key, the numeric amount in " + strprintf("%s",hush_chainname()) + " is the value\n"
            "      ,...\n"
            "    }\n"
            "3. minconf                 (numeric, optional, default=1) Only use the balance confirmed at least this many times.\n"
            "4. \"comment\"             (string, optional) A comment\n"
            "5. subtractfeefromamount   (string, optional) 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 " + strprintf("%s",hush_chainname()) + " than you enter in their corresponding amount field.\n"
            "                           If no addresses are specified here, the sender pays the fee.\n"
            "    [\n"
            "      \"address\"            (string) Subtract fee from this address\n"
            "      ,...\n"
            "    ]\n"
            "\nResult:\n"
            "\"transactionid\"          (string) The transaction id for the send. Only 1 transaction is created regardless of \n"
            "                                    the number of addresses.\n"
            "\nExamples:\n"
            "\nSend two amounts to two different addresses:\n"
            + HelpExampleCli("sendmany", "\"\" \"{\\\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPVMY\\\":0.01,\\\"RRyyejME7LRTuvdziWsXkAbSW1fdiohGwK\\\":0.02}\"") +
            "\nSend two amounts to two different addresses setting the confirmation and comment:\n"
            + HelpExampleCli("sendmany", "\"\" \"{\\\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPVMY\\\":0.01,\\\"RRyyejME7LRTuvdziWsXkAbSW1fdiohGwK\\\":0.02}\" 6 \"testing\"") +
            "\nSend two amounts to two different addresses, subtract fee from amount:\n"
            + HelpExampleCli("sendmany", "\"\" \"{\\\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPVMY\\\":0.01,\\\"RRyyejME7LRTuvdziWsXkAbSW1fdiohGwK\\\":0.02}\" 1 \"\" \"[\\\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPVMY\\\",\\\"RRyyejME7LRTuvdziWsXkAbSW1fdiohGwK\\\"]\"") +
            "\nAs a json rpc call\n"
            + HelpExampleRpc("sendmany", "\"\", {\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPVMY\":0.01,\"RRyyejME7LRTuvdziWsXkAbSW1fdiohGwK\":0.02}, 6, \"testing\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    string strAccount = AccountFromValue(params[0]);
    UniValue sendTo = params[1].get_obj();
    int nMinDepth = 1;
    if (params.size() > 2)
        nMinDepth = params[2].get_int();

    CWalletTx wtx;
    wtx.strFromAccount = strAccount;
    if (params.size() > 3 && !params[3].isNull() && !params[3].get_str().empty())
        wtx.mapValue["comment"] = params[3].get_str();

    UniValue subtractFeeFromAmount(UniValue::VARR);
    if (params.size() > 4)
        subtractFeeFromAmount = params[4].get_array();

    std::vector<CRecipient> vecSend;

    CAmount totalAmount = 0;
    std::vector<std::string> keys = sendTo.getKeys();
    int32_t i = 0;
    for (const std::string& name_ : keys) {
        // Allow transparent notary addresses and throw an error for anything else
        // This is also a consensus check but we want to prevent it from going into the mempool
        // and give an error as early as possible
        if ( ASSETCHAINS_PRIVATE != 0 )
        {
            if ( hush_isnotaryvout((char *)name_.c_str(),chainActive.LastTip()->nTime) == 0 )
            {
                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Transparent " + strprintf("%s",hush_chainname()) + " address not allowed on private chain");
            }
        }

        CTxDestination dest = DecodeDestination(name_);
        if (!IsValidDestination(dest)) {
            CScript tmpspk;
            tmpspk << ParseHex(name_) << OP_CHECKSIG;
            if ( !ExtractDestination(tmpspk, dest, true) )
                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, std::string("Invalid DragonX address or pubkey: ") + name_);
        }

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

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

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

    EnsureWalletIsUnlocked();

    // Check funds
    CAmount nBalance = GetAccountBalance(strAccount, nMinDepth, ISMINE_SPENDABLE);
    if (totalAmount > nBalance)
        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Account has insufficient funds");

    // Send
    CReserveKey keyChange(pwalletMain);
    CAmount nFeeRequired = 0;
    int nChangePosRet = -1;
    string strFailReason;
    bool fCreated = pwalletMain->CreateTransaction(vecSend, wtx, keyChange, nFeeRequired, nChangePosRet, strFailReason);
    if (!fCreated)
        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, strFailReason);
    if (!pwalletMain->CommitTransaction(wtx, keyChange))
        throw JSONRPCError(RPC_WALLET_ERROR, "Transaction commit failed");

    return wtx.GetHash().GetHex();
}

// Defined in rpc/misc.cpp
extern CScript _createmultisig_redeemScript(const UniValue& params);

UniValue addmultisigaddress(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 2 || params.size() > 3)
    {
        string msg = "addmultisigaddress nrequired [\"key\",...] ( \"account\" )\n"
            "\nAdd a nrequired-to-sign multisignature address to the wallet.\n"
            "Each key is a " + strprintf("%s",hush_chainname()) + " address or hex-encoded public key.\n"
            "If 'account' is specified (DEPRECATED), assign address to that account.\n"

            "\nArguments:\n"
            "1. nrequired        (numeric, required) The number of required signatures out of the n keys or addresses.\n"
            "2. \"keysobject\"   (string, required) A json array of " + strprintf("%s",hush_chainname()) + " addresses or hex-encoded public keys\n"
            "     [\n"
            "       \"address\"  (string) " + strprintf("%s",hush_chainname()) + " address or hex-encoded public key\n"
            "       ...,\n"
            "     ]\n"
            "3. \"account\"      (string, optional) DEPRECATED. If provided, MUST be set to the empty string \"\" to represent the default account. Passing any other string will result in an error.\n"

            "\nResult:\n"
            "\"" + strprintf("%s",hush_chainname()) + "_address\"  (string) A " + strprintf("%s",hush_chainname()) + " address associated with the keys.\n"

            "\nExamples:\n"
            "\nAdd a multisig address from 2 addresses\n"
            + HelpExampleCli("addmultisigaddress", "2 \"[\\\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\\\",\\\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\\\"]\"") +
            "\nAs json rpc call\n"
            + HelpExampleRpc("addmultisigaddress", "2, \"[\\\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\\\",\\\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\\\"]\"")
        ;
        throw runtime_error(msg);
    }

    LOCK2(cs_main, pwalletMain->cs_wallet);

    string strAccount;
    if (params.size() > 2)
        strAccount = AccountFromValue(params[2]);

    // Construct using pay-to-script-hash:
    CScript inner = _createmultisig_redeemScript(params);
    CScriptID innerID(inner);
    pwalletMain->AddCScript(inner);

    pwalletMain->SetAddressBook(innerID, strAccount, "send");
    return EncodeDestination(innerID);
}


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

UniValue ListReceived(const UniValue& params, bool fByAccounts)
{
    // Minimum confirmations
    int nMinDepth = 1;
    if (params.size() > 0)
        nMinDepth = params[0].get_int();

    // Whether to include empty accounts
    bool fIncludeEmpty = false;
    if (params.size() > 1)
        fIncludeEmpty = params[1].get_bool();

    isminefilter filter = ISMINE_SPENDABLE;
    if(params.size() > 2)
        if(params[2].get_bool())
            filter = filter | ISMINE_WATCH_ONLY;

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

        if (wtx.IsCoinBase() || !CheckFinalTx(wtx))
            continue;

        int nDepth    = wtx.GetDepthInMainChain();
        if( nMinDepth > 1 ) {
            int nHeight   = tx_height(wtx.GetHash());
            int dpowconfs = hush_dpowconfs(nHeight, nDepth);
            if (dpowconfs < nMinDepth)
                continue;
        } else {
            if (nDepth < nMinDepth)
                continue;
        }

        BOOST_FOREACH(const CTxOut& txout, wtx.vout)
        {
            CTxDestination address;
            if (!ExtractDestination(txout.scriptPubKey, address))
                continue;

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

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

    // Reply
    UniValue ret(UniValue::VARR);
    std::map<std::string, tallyitem> mapAccountTally;
    for (const std::pair<CTxDestination, CAddressBookData>& item : pwalletMain->mapAddressBook) {
        const CTxDestination& dest = item.first;
        const std::string& strAccount = item.second.name;
        std::map<CTxDestination, tallyitem>::iterator it = mapTally.find(dest);
        if (it == mapTally.end() && !fIncludeEmpty)
            continue;

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

        if (fByAccounts)
        {
            tallyitem& item = mapAccountTally[strAccount];
            item.nAmount += nAmount;
            item.nConf = min(item.nConf, nConf);
            item.fIsWatchonly = fIsWatchonly;
        }
        else
        {
            UniValue obj(UniValue::VOBJ);

            if(fIsWatchonly)
                obj.push_back(Pair("involvesWatchonly", true));
            obj.push_back(Pair("address",       EncodeDestination(dest)));
            obj.push_back(Pair("account",       strAccount));
            obj.push_back(Pair("amount",        ValueFromAmount(nAmount)));
            obj.push_back(Pair("rawconfirmations", (nConf == std::numeric_limits<int>::max() ? 0 : nConf)));
            obj.push_back(Pair("confirmations", (nConf == std::numeric_limits<int>::max() ? 0 : hush_dpowconfs(nHeight, nConf))));
            UniValue transactions(UniValue::VARR);
            if (it != mapTally.end())
            {
                BOOST_FOREACH(const uint256& item, (*it).second.txids)
                {
                    transactions.push_back(item.GetHex());
                }
            }
            obj.push_back(Pair("txids", transactions));
            ret.push_back(obj);
        }
    }

    if (fByAccounts)
    {
        for (map<string, tallyitem>::iterator it = mapAccountTally.begin(); it != mapAccountTally.end(); ++it)
        {
            CAmount nAmount = (*it).second.nAmount;
            int nConf = (*it).second.nConf;
            int nHeight = (*it).second.nHeight;
            UniValue obj(UniValue::VOBJ);
            if((*it).second.fIsWatchonly)
                obj.push_back(Pair("involvesWatchonly", true));
            obj.push_back(Pair("account",       (*it).first));
            obj.push_back(Pair("amount",        ValueFromAmount(nAmount)));
            obj.push_back(Pair("rawconfirmations", (nConf == std::numeric_limits<int>::max() ? 0 : nConf)));
            obj.push_back(Pair("confirmations", (nConf == std::numeric_limits<int>::max() ? 0 : hush_dpowconfs(nHeight, nConf))));
            ret.push_back(obj);
        }
    }

    return ret;
}

UniValue listreceivedbyaddress(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 3)
        throw runtime_error(
            "listreceivedbyaddress ( minconf includeempty includeWatchonly)\n"
            "\nList balances by receiving address.\n"
            "\nArguments:\n"
            "1. minconf       (numeric, optional, default=1) The minimum number of confirmations before payments are included.\n"
            "2. includeempty  (numeric, optional, default=false) Whether to include addresses that haven't received any payments.\n"
            "3. includeWatchonly (bool, optional, default=false) Whether to include watchonly addresses (see 'importaddress').\n"

            "\nResult:\n"
            "[\n"
            "  {\n"
            "    \"involvesWatchonly\" : true,        (bool) Only returned if imported addresses were involved in transaction\n"
            "    \"address\" : \"receivingaddress\",  (string) The receiving address\n"
            "    \"account\" : \"accountname\",       (string) DEPRECATED. The account of the receiving address. The default account is \"\".\n"
            "    \"amount\" : x.xxx,                  (numeric) The total amount in " + strprintf("%s",hush_chainname()) + " received by the address\n"
            "    \"confirmations\" : n                (numeric) The number of confirmations of the most recent transaction included\n"
            "  }\n"
            "  ,...\n"
            "]\n"

            "\nExamples:\n"
            + HelpExampleCli("listreceivedbyaddress", "")
            + HelpExampleCli("listreceivedbyaddress", "6 true")
            + HelpExampleRpc("listreceivedbyaddress", "6, true, true")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    return ListReceived(params, false);
}

UniValue listreceivedbyaccount(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 3)
        throw runtime_error(
            "listreceivedbyaccount ( minconf includeempty includeWatchonly)\n"
            "\nDEPRECATED. List balances by account.\n"
            "\nArguments:\n"
            "1. minconf      (numeric, optional, default=1) The minimum number of confirmations before payments are included.\n"
            "2. includeempty (boolean, optional, default=false) Whether to include accounts that haven't received any payments.\n"
            "3. includeWatchonly (bool, optional, default=false) Whether to include watchonly addresses (see 'importaddress').\n"

            "\nResult:\n"
            "[\n"
            "  {\n"
            "    \"involvesWatchonly\" : true,   (bool) Only returned if imported addresses were involved in transaction\n"
            "    \"account\" : \"accountname\",  (string) The account name of the receiving account\n"
            "    \"amount\" : x.xxx,             (numeric) The total amount received by addresses with this account\n"
            "    \"confirmations\" : n           (numeric) The number of confirmations of the most recent transaction included\n"
            "  }\n"
            "  ,...\n"
            "]\n"

            "\nExamples:\n"
            + HelpExampleCli("listreceivedbyaccount", "")
            + HelpExampleCli("listreceivedbyaccount", "6 true")
            + HelpExampleRpc("listreceivedbyaccount", "6, true, true")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    return ListReceived(params, true);
}

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

void ListTransactions(const CWalletTx& wtx, const string& strAccount, int nMinDepth, bool fLong, UniValue& ret, const isminefilter& filter)
{
    CAmount nFee;
    string strSentAccount;
    list<COutputEntry> listReceived;
    list<COutputEntry> listSent;

    bool bIsCoinbase = wtx.IsCoinBase();

    wtx.GetAmounts(listReceived, listSent, nFee, strSentAccount, filter);

    bool fAllAccounts = (strAccount == string("*"));
    bool involvesWatchonly = wtx.IsFromMe(ISMINE_WATCH_ONLY);

    // Sent
    if ((!listSent.empty() || nFee != 0) && (fAllAccounts || strAccount == strSentAccount))
    {
        BOOST_FOREACH(const COutputEntry& s, listSent)
        {
            UniValue entry(UniValue::VOBJ);
            if(involvesWatchonly || (::IsMine(*pwalletMain, s.destination) & ISMINE_WATCH_ONLY))
                entry.push_back(Pair("involvesWatchonly", true));
            entry.push_back(Pair("account", strSentAccount));
            MaybePushAddress(entry, s.destination);
            entry.push_back(Pair("category", "send"));
            entry.push_back(Pair("amount", ValueFromAmount(-s.amount)));
            entry.push_back(Pair("vout", s.vout));
            entry.push_back(Pair("fee", ValueFromAmount(-nFee)));
            if (fLong)
                WalletTxToJSON(wtx, entry);
            entry.push_back(Pair("size", static_cast<uint64_t>(GetSerializeSize(static_cast<CTransaction>(wtx), SER_NETWORK, PROTOCOL_VERSION))));
            ret.push_back(entry);
        }
    }

    // Received
    if (listReceived.size() > 0 && wtx.GetDepthInMainChain() >= nMinDepth)
    {
        BOOST_FOREACH(const COutputEntry& r, listReceived)
        {
            string account;
            if (pwalletMain->mapAddressBook.count(r.destination))
                account = pwalletMain->mapAddressBook[r.destination].name;
            if (fAllAccounts || (account == strAccount))
            {
                UniValue entry(UniValue::VOBJ);
                if(involvesWatchonly || (::IsMine(*pwalletMain, r.destination) & ISMINE_WATCH_ONLY))
                    entry.push_back(Pair("involvesWatchonly", true));
                entry.push_back(Pair("account", account));

                CTxDestination dest;
			    MaybePushAddress(entry, r.destination);

                if (bIsCoinbase)
                {
                    int btm;
                    if (wtx.GetDepthInMainChain() < 1)
                        entry.push_back(Pair("category", "orphan"));
                    else if ((btm = wtx.GetBlocksToMaturity()) > 0)
                    {
                        entry.push_back(Pair("category", "immature"));
                        entry.push_back(Pair("blockstomaturity", btm));
                    }
                    else
                        entry.push_back(Pair("category", "generate"));
                }
                else
                {
                    entry.push_back(Pair("category", "receive"));
                }

                entry.push_back(Pair("amount", ValueFromAmount(r.amount)));
                entry.push_back(Pair("vout", r.vout));
                if (fLong)
                    WalletTxToJSON(wtx, entry);
                entry.push_back(Pair("size", static_cast<uint64_t>(GetSerializeSize(static_cast<CTransaction>(wtx), SER_NETWORK, PROTOCOL_VERSION))));
                ret.push_back(entry);
            }
        }
    }
}

void AcentryToJSON(const CAccountingEntry& acentry, const string& strAccount, UniValue& ret)
{
    bool fAllAccounts = (strAccount == string("*"));

    if (fAllAccounts || acentry.strAccount == strAccount)
    {
        UniValue entry(UniValue::VOBJ);
        entry.push_back(Pair("account", acentry.strAccount));
        entry.push_back(Pair("category", "move"));
        entry.push_back(Pair("time", acentry.nTime));
        entry.push_back(Pair("amount", ValueFromAmount(acentry.nCreditDebit)));
        entry.push_back(Pair("otheraccount", acentry.strOtherAccount));
        entry.push_back(Pair("comment", acentry.strComment));
        ret.push_back(entry);
    }
}

UniValue listtransactions(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 4)
        throw runtime_error(
            "listtransactions ( \"account\" count from includeWatchonly)\n"
            "\nReturns up to 'count' most recent transactions skipping the first 'from' transactions for account 'account'.\n"
            "\nArguments:\n"
            "1. \"account\"    (string, optional) DEPRECATED. The account name. Should be \"*\".\n"
            "2. count          (numeric, optional, default=10) The number of transactions to return\n"
            "3. from           (numeric, optional, default=0) The number of transactions to skip\n"
            "4. includeWatchonly (bool, optional, default=false) Include transactions to watchonly addresses (see 'importaddress')\n"
            "\nResult:\n"
            "[\n"
            "  {\n"
            "    \"account\":\"accountname\",       (string) DEPRECATED. The account name associated with the transaction. \n"
            "                                                It will be \"\" for the default account.\n"
            "    \"address\":\"" + strprintf("%s",hush_chainname()) + "_address\",    (string) The " + strprintf("%s",hush_chainname()) + " 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 " + strprintf("%s",hush_chainname()) + ". 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"
            "    \"vout\" : n,               (numeric) the vout value\n"
            "    \"fee\": x.xxx,             (numeric) The amount of the fee in " + strprintf("%s",hush_chainname()) + ". This is negative and only available for the \n"
            "                                         'send' category of transactions.\n"
            "    \"confirmations\": n,       (numeric) The number of confirmations for the transaction. Available for 'send' and \n"
            "                                         'receive' category of transactions.\n"
            "    \"blockhash\": \"hashvalue\", (string) The block hash containing the transaction. Available for 'send' and 'receive'\n"
            "                                          category of transactions.\n"
            "    \"blockindex\": n,          (numeric) The block index containing the transaction. Available for 'send' and 'receive'\n"
            "                                          category of transactions.\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"
            "    \"otheraccount\": \"accountname\",  (string) For the 'move' category of transactions, the account the funds came \n"
            "                                          from (for receiving funds, positive amounts), or went to (for sending funds,\n"
            "                                          negative amounts).\n"
            "    \"size\": n,                (numeric) Transaction size in bytes\n"
            "  }\n"
            "]\n"

            "\nExamples:\n"
            "\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")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    string strAccount = "*";
    if (params.size() > 0)
        strAccount = params[0].get_str();
    int nCount = 10;
    if (params.size() > 1)
        nCount = params[1].get_int();
    int nFrom = 0;
    if (params.size() > 2)
        nFrom = params[2].get_int();
    isminefilter filter = ISMINE_SPENDABLE;
    if(params.size() > 3)
        if(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);

    std::list<CAccountingEntry> acentries;
    CWallet::TxItems txOrdered = pwalletMain->OrderedTxItems(acentries, strAccount);

    // iterate backwards until we have nCount items to return:
    for (CWallet::TxItems::reverse_iterator it = txOrdered.rbegin(); it != txOrdered.rend(); ++it)
    {
        CWalletTx *const pwtx = (*it).second.first;
        if (pwtx != 0)
        {
            ListTransactions(*pwtx, strAccount, 0, true, ret, filter);
        }
        CAccountingEntry *const pacentry = (*it).second.second;
        if (pacentry != 0)
            AcentryToJSON(*pacentry, strAccount, ret);

        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;

    vector<UniValue> arrTmp = ret.getValues();

    vector<UniValue>::iterator first = arrTmp.begin();
    std::advance(first, nFrom);
    vector<UniValue>::iterator last = arrTmp.begin();
    std::advance(last, nFrom+nCount);

    if (last != arrTmp.end()) arrTmp.erase(last, arrTmp.end());
    if (first != arrTmp.begin()) arrTmp.erase(arrTmp.begin(), first);

    std::reverse(arrTmp.begin(), arrTmp.end()); // Return oldest to newest

    ret.clear();
    ret.setArray();
    ret.push_backV(arrTmp);

    return ret;
}

UniValue listaccounts(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 2)
        throw runtime_error(
            "listaccounts ( minconf includeWatchonly)\n"
            "\nDEPRECATED. Returns Object that has account names as keys, account balances as values.\n"
            "\nArguments:\n"
            "1. minconf          (numeric, optional, default=1) Only include transactions with at least this many confirmations\n"
            "2. includeWatchonly (bool, optional, default=false) Include balances in watchonly addresses (see 'importaddress')\n"
            "\nResult:\n"
            "{                      (json object where keys are account names, and values are numeric balances\n"
            "  \"account\": x.xxx,  (numeric) The property name is the account name, and the value is the total balance for the account.\n"
            "  ...\n"
            "}\n"
            "\nExamples:\n"
            "\nList account balances where there at least 1 confirmation\n"
            + HelpExampleCli("listaccounts", "") +
            "\nList account balances including zero confirmation transactions\n"
            + HelpExampleCli("listaccounts", "0") +
            "\nList account balances for 6 or more confirmations\n"
            + HelpExampleCli("listaccounts", "6") +
            "\nAs json rpc call\n"
            + HelpExampleRpc("listaccounts", "6")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    int nMinDepth = 1;
    if (params.size() > 0)
        nMinDepth = params[0].get_int();
    isminefilter includeWatchonly = ISMINE_SPENDABLE;
    if(params.size() > 1)
        if(params[1].get_bool())
            includeWatchonly = includeWatchonly | ISMINE_WATCH_ONLY;

    map<string, CAmount> mapAccountBalances;
    BOOST_FOREACH(const PAIRTYPE(CTxDestination, CAddressBookData)& entry, pwalletMain->mapAddressBook) {
        if (IsMine(*pwalletMain, entry.first) & includeWatchonly) // This address belongs to me
            mapAccountBalances[entry.second.name] = 0;
    }

    for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
    {
        const CWalletTx& wtx = (*it).second;
        CAmount nFee;
        string strSentAccount;
        list<COutputEntry> listReceived;
        list<COutputEntry> listSent;
        int nDepth = wtx.GetDepthInMainChain();
        if (wtx.GetBlocksToMaturity() > 0 || nDepth < 0)
            continue;
        wtx.GetAmounts(listReceived, listSent, nFee, strSentAccount, includeWatchonly);
        mapAccountBalances[strSentAccount] -= nFee;
        BOOST_FOREACH(const COutputEntry& s, listSent)
            mapAccountBalances[strSentAccount] -= s.amount;
        if (nDepth >= nMinDepth)
        {
            BOOST_FOREACH(const COutputEntry& r, listReceived)
                if (pwalletMain->mapAddressBook.count(r.destination))
                    mapAccountBalances[pwalletMain->mapAddressBook[r.destination].name] += r.amount;
                else
                    mapAccountBalances[""] += r.amount;
        }
    }

    list<CAccountingEntry> acentries;
    CWalletDB(pwalletMain->strWalletFile).ListAccountCreditDebit("*", acentries);
    BOOST_FOREACH(const CAccountingEntry& entry, acentries)
        mapAccountBalances[entry.strAccount] += entry.nCreditDebit;

    UniValue ret(UniValue::VOBJ);
    BOOST_FOREACH(const PAIRTYPE(string, CAmount)& accountBalance, mapAccountBalances) {
        ret.push_back(Pair(accountBalance.first, ValueFromAmount(accountBalance.second)));
    }
    return ret;
}

UniValue listsinceblock(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp)
        throw runtime_error(
            "listsinceblock ( \"blockhash\" target-confirmations includeWatchonly)\n"
            "\nGet all transactions in blocks since block [blockhash], or all transactions if omitted\n"
            "\nArguments:\n"
            "1. \"blockhash\"   (string, optional) The block hash to list transactions since\n"
            "2. target-confirmations:    (numeric, optional) The confirmations required, must be 1 or more\n"
            "3. includeWatchonly:        (bool, optional, default=false) Include transactions to watchonly addresses (see 'importaddress')"
            "\nResult:\n"
            "{\n"
            "  \"transactions\": [\n"
            "    \"account\":\"accountname\",       (string) DEPRECATED. The account name associated with the transaction. Will be \"\" for the default account.\n"
            "    \"address\":\"" + strprintf("%s",hush_chainname()) + "_address\",    (string) The " + strprintf("%s",hush_chainname()) + " 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 " + strprintf("%s",hush_chainname()) + ". 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 " + strprintf("%s",hush_chainname()) + ". This is negative and only available for the 'send' category of transactions.\n"
            "    \"confirmations\": n,       (numeric) The number of confirmations for the transaction. Available for 'send' and 'receive' category of transactions.\n"
            "    \"blockhash\": \"hashvalue\",     (string) The block hash containing the transaction. Available for 'send' and 'receive' category of transactions.\n"
            "    \"blockindex\": n,          (numeric) The block index containing the transaction. 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"
            "    \"comment\": \"...\",       (string) If a comment is associated with the transaction.\n"
            "    \"to\": \"...\",            (string) If a comment to is associated with the transaction.\n"
             "  ],\n"
            "  \"lastblock\": \"lastblockhash\"     (string) The hash of the last block\n"
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("listsinceblock", "")
            + HelpExampleCli("listsinceblock", "\"000000000000000bacf66f7497b7dc45ef753ee9a7d38571037cdb1a57f663ad\" 6")
            + HelpExampleRpc("listsinceblock", "\"000000000000000bacf66f7497b7dc45ef753ee9a7d38571037cdb1a57f663ad\", 6")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    CBlockIndex *pindex = NULL;
    int target_confirms = 1;
    isminefilter filter = ISMINE_SPENDABLE;

    if (params.size() > 0)
    {
        uint256 blockId;

        blockId.SetHex(params[0].get_str());
        BlockMap::iterator it = mapBlockIndex.find(blockId);
        if (it != mapBlockIndex.end())
            pindex = it->second;
    }

    if (params.size() > 1)
    {
        target_confirms = params[1].get_int();

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

    if(params.size() > 2)
        if(params[2].get_bool())
            filter = filter | ISMINE_WATCH_ONLY;

    int depth = pindex ? (1 + chainActive.Height() - pindex->GetHeight()) : -1;

    UniValue transactions(UniValue::VARR);

    for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); it++)
    {
        CWalletTx tx = (*it).second;

        if (depth == -1 || tx.GetDepthInMainChain() < depth)
            ListTransactions(tx, "*", 0, true, transactions, filter);
    }

    CBlockIndex *pblockLast = chainActive[chainActive.Height() + 1 - target_confirms];
    uint256 lastblock = pblockLast ? pblockLast->GetBlockHash() : uint256();

    UniValue ret(UniValue::VOBJ);
    ret.push_back(Pair("transactions", transactions));
    ret.push_back(Pair("lastblock", lastblock.GetHex()));

    return ret;
}

UniValue gettransaction(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 1 || params.size() > 2)
        throw runtime_error(
            "gettransaction \"txid\" ( includeWatchonly )\n"
            "\nGet detailed information about in-wallet transaction <txid>. Also see z_viewtransaction for ztx details.\n"
            "\nArguments:\n"
            "1. \"txid\"    (string, required) The transaction id\n"
            "2. \"includeWatchonly\"    (bool, optional, default=false) Whether to include watchonly addresses in balance calculation and details[]\n"
            "\nResult:\n"
            "{\n"
            "  \"amount\" : x.xxx,        (numeric) The transaction amount in " + strprintf("%s",hush_chainname()) + "\n"
            "  \"confirmations\" : n,     (numeric) The number of confirmations\n"
            "  \"blockhash\" : \"hash\",  (string) The block hash\n"
            "  \"blockindex\" : xx,       (numeric) The block index\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"
            "      \"account\" : \"accountname\",  (string) DEPRECATED. The account name involved in the transaction, can be \"\" for the default account.\n"
            "      \"address\" : \"" + strprintf("%s",hush_chainname()) + "_address\",   (string) The " + strprintf("%s",hush_chainname()) + " address involved in the transaction\n"
            "      \"category\" : \"send|receive\",    (string) The category, either 'send' or 'receive'\n"
            "      \"amount\" : x.xxx                  (numeric) The amount in " + strprintf("%s",hush_chainname()) + "\n"
            "      \"vout\" : n,                       (numeric) the vout value\n"
            "    }\n"
            "    ,...\n"
            "  ],\n"
            "  \"hex\" : \"data\"         (string) Raw data for transaction\n"
            "}\n"

            "\nExamples:\n"
            + HelpExampleCli("gettransaction", "\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\"")
            + HelpExampleCli("gettransaction", "\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\" true")
            + HelpExampleRpc("gettransaction", "\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

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

    isminefilter filter = ISMINE_SPENDABLE;
    if(params.size() > 1)
        if(params[1].get_bool())
            filter = filter | ISMINE_WATCH_ONLY;

    UniValue entry(UniValue::VOBJ);
    if (!pwalletMain->mapWallet.count(hash))
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid or non-wallet transaction id");
    const CWalletTx& wtx = pwalletMain->mapWallet[hash];

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

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

    WalletTxToJSON(wtx, entry);

    UniValue details(UniValue::VARR);
    ListTransactions(wtx, "*", 0, false, details, filter);
    entry.push_back(Pair("details", details));

    string strHex = EncodeHexTx(static_cast<CTransaction>(wtx));
    entry.push_back(Pair("hex", strHex));

    return entry;
}


UniValue backupwallet(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() != 1)
        throw runtime_error(
            "backupwallet \"destination\"\n"
            "\nSafely copies wallet.dat to destination filename\n"
            "\nArguments:\n"
            "1. \"destination\"   (string, required) The destination filename, saved in the directory set by -exportdir option.\n"
            "\nResult:\n"
            "\"path\"             (string) The full path of the destination file\n"
            "\nExamples:\n"
            + HelpExampleCli("backupwallet", "\"backupdata\"")
            + HelpExampleRpc("backupwallet", "\"backupdata\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    boost::filesystem::path exportdir;
    try {
        exportdir = GetExportDir();
    } catch (const std::runtime_error& e) {
        throw JSONRPCError(RPC_INTERNAL_ERROR, e.what());
    }
    if (exportdir.empty()) {
        throw JSONRPCError(RPC_WALLET_ERROR, "Cannot backup wallet until the -exportdir option has been set");
    }
    std::string unclean = params[0].get_str();
    std::string clean = SanitizeFilename(unclean);
    if (clean.compare(unclean) != 0) {
        throw JSONRPCError(RPC_WALLET_ERROR, strprintf("Filename is invalid as only alphanumeric characters are allowed.  Try '%s' instead.", clean));
    }
    boost::filesystem::path exportfilepath = exportdir / clean;

    if (!BackupWallet(*pwalletMain, exportfilepath.string()))
        throw JSONRPCError(RPC_WALLET_ERROR, "Error: Wallet backup failed!");

    return exportfilepath.string();
}


UniValue keypoolrefill(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 1)
        throw runtime_error(
            "keypoolrefill ( newsize )\n"
            "\nFills the keypool."
            + HelpRequiringPassphrase() + "\n"
            "\nArguments\n"
            "1. newsize     (numeric, optional, default=100) The new keypool size\n"
            "\nExamples:\n"
            + HelpExampleCli("keypoolrefill", "")
            + HelpExampleRpc("keypoolrefill", "")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

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

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

    if (pwalletMain->GetKeyPoolSize() < kpSize)
        throw JSONRPCError(RPC_WALLET_ERROR, "Error refreshing keypool.");

    return NullUniValue;
}


static void LockWallet(CWallet* pWallet)
{
    LOCK(cs_nWalletUnlockTime);
    nWalletUnlockTime = 0;
    pWallet->Lock();
}

UniValue walletpassphrase(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (pwalletMain->IsCrypted() && (fHelp || params.size() != 2))
        throw runtime_error(
            "walletpassphrase \"passphrase\" timeout\n"
            "\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 " + strprintf("%s",hush_chainname()) + "\n"
            "\nArguments:\n"
            "1. \"passphrase\"     (string, required) The wallet passphrase\n"
            "2. timeout            (numeric, required) The time to keep the decryption key in seconds.\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"
            "\nExamples:\n"
            "\nunlock the wallet for 60 seconds\n"
            + HelpExampleCli("walletpassphrase", "\"my pass phrase\" 60") +
            "\nLock the wallet again (before 60 seconds)\n"
            + HelpExampleCli("walletlock", "") +
            "\nAs json rpc call\n"
            + HelpExampleRpc("walletpassphrase", "\"my pass phrase\", 60")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    if (fHelp)
        return true;
    if (!pwalletMain->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 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 params[0] mlock()'d to begin with.
    strWalletPass = params[0].get_str().c_str();

    if (strWalletPass.length() > 0)
    {
        if (!pwalletMain->Unlock(strWalletPass))
            throw JSONRPCError(RPC_WALLET_PASSPHRASE_INCORRECT, "Error: The wallet passphrase entered was incorrect.");
    }
    else
        throw runtime_error(
            "walletpassphrase <passphrase> <timeout>\n"
            "Stores the wallet decryption key in memory for <timeout> seconds.");

    // No need to check return values, because the wallet was unlocked above
    pwalletMain->UpdateNullifierNoteMap();
    pwalletMain->TopUpKeyPool();

    int64_t nSleepTime = params[1].get_int64();
    LOCK(cs_nWalletUnlockTime);
    nWalletUnlockTime = GetTime() + nSleepTime;
    RPCRunLater("lockwallet", boost::bind(LockWallet, pwalletMain), nSleepTime);

    return NullUniValue;
}


UniValue walletpassphrasechange(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (pwalletMain->IsCrypted() && (fHelp || params.size() != 2))
        throw runtime_error(
            "walletpassphrasechange \"oldpassphrase\" \"newpassphrase\"\n"
            "\nChanges the wallet passphrase from 'oldpassphrase' to 'newpassphrase'.\n"
            "\nArguments:\n"
            "1. \"oldpassphrase\"      (string) The current passphrase\n"
            "2. \"newpassphrase\"      (string) The new passphrase\n"
            "\nExamples:\n"
            + HelpExampleCli("walletpassphrasechange", "\"old one\" \"new one\"")
            + HelpExampleRpc("walletpassphrasechange", "\"old one\", \"new one\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    if (fHelp)
        return true;
    if (!pwalletMain->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 params[0] mlock()'d to begin with.
    SecureString strOldWalletPass;
    strOldWalletPass.reserve(100);
    strOldWalletPass = params[0].get_str().c_str();

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

    if (strOldWalletPass.length() < 1 || strNewWalletPass.length() < 1)
        throw runtime_error(
            "walletpassphrasechange <oldpassphrase> <newpassphrase>\n"
            "Changes the wallet passphrase from <oldpassphrase> to <newpassphrase>.");

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

    return NullUniValue;
}


UniValue walletlock(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (pwalletMain->IsCrypted() && (fHelp || params.size() != 0))
        throw runtime_error(
            "walletlock\n"
            "\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"
            "\nExamples:\n"
            "\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", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" 1.0") +
            "\nClear the passphrase since we are done before 2 minutes is up\n"
            + HelpExampleCli("walletlock", "") +
            "\nAs json rpc call\n"
            + HelpExampleRpc("walletlock", "")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    if (fHelp)
        return true;
    if (!pwalletMain->IsCrypted())
        throw JSONRPCError(RPC_WALLET_WRONG_ENC_STATE, "Error: running with an unencrypted wallet, but walletlock was called.");

    {
        LOCK(cs_nWalletUnlockTime);
        pwalletMain->Lock();
        nWalletUnlockTime = 0;
    }

    return NullUniValue;
}

int32_t hush_scpublic(uint32_t tiptime);

UniValue encryptwallet(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    string enableArg = "developerencryptwallet";
    int32_t flag = (hush_scpublic(0) || SMART_CHAIN_SYMBOL[0] == 0);
    auto fEnableWalletEncryption = fExperimentalMode && GetBoolArg("-" + enableArg, flag);

    std::string strWalletEncryptionDisabledMsg = "";
    if (!fEnableWalletEncryption) {
        strWalletEncryptionDisabledMsg = experimentalDisabledHelpMsg("encryptwallet", enableArg);
    }

    if (!pwalletMain->IsCrypted() && (fHelp || params.size() != 1))
        throw runtime_error(
            "encryptwallet \"passphrase\"\n"
            + strWalletEncryptionDisabledMsg +
            "\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"
            "Note that this will shutdown the server.\n"
            "\nArguments:\n"
            "1. \"passphrase\"    (string) The pass phrase to encrypt the wallet with. It must be at least 1 character, but should be long.\n"
            "\nExamples:\n"
            "\nEncrypt you wallet\n"
            + HelpExampleCli("encryptwallet", "\"my pass phrase\"") +
            "\nNow set the passphrase to use the wallet, such as for signing or sending " + strprintf("%s",hush_chainname()) + "\n"
            + HelpExampleCli("walletpassphrase", "\"my pass phrase\"") +
            "\nNow we can so something like sign\n"
            + HelpExampleCli("signmessage", "\"" + strprintf("%s",hush_chainname()) + "_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\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    if (fHelp)
        return true;
    if (!fEnableWalletEncryption) {
        throw JSONRPCError(RPC_WALLET_ENCRYPTION_FAILED, "Error: wallet encryption is disabled.");
    }
    if (pwalletMain->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 params[0] mlock()'d to begin with.
    SecureString strWalletPass;
    strWalletPass.reserve(100);
    strWalletPass = params[0].get_str().c_str();

    if (strWalletPass.length() < 1)
        throw runtime_error(
            "encryptwallet <passphrase>\n"
            "Encrypts the wallet with <passphrase>.");

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

    // BDB seems to have a bad habit of writing old data into
    // slack space in .dat files; that is bad if the old data is
    // unencrypted private keys. So:
    StartShutdown();
    return "wallet encrypted; DragonX server stopping, restart to run with encrypted wallet. The keypool has been flushed, you need to make a new backup.";
}

UniValue lockunspent(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 1 || params.size() > 2)
        throw runtime_error(
            "lockunspent unlock [{\"txid\":\"txid\",\"vout\":n},...]\n"
            "\nUpdates list of temporarily unspendable outputs.\n"
            "Temporarily lock (unlock=false) or unlock (unlock=true) specified transaction outputs.\n"
            "A locked transaction output will not be chosen by automatic coin selection, when spending " + strprintf("%s",hush_chainname()) + ".\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"
            "\nArguments:\n"
            "1. unlock            (boolean, required) Whether to unlock (true) or lock (false) the specified transactions\n"
            "2. \"transactions\"  (string, required) A json array of objects. Each object the txid (string) vout (numeric)\n"
            "     [           (json array of json objects)\n"
            "       {\n"
            "         \"txid\":\"id\",    (string) The transaction id\n"
            "         \"vout\": n         (numeric) The output number\n"
            "       }\n"
            "       ,...\n"
            "     ]\n"

            "\nResult:\n"
            "true|false    (boolean) Whether the command was successful or not\n"

            "\nExamples:\n"
            "\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}]\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    if (params.size() == 1)
        RPCTypeCheck(params, boost::assign::list_of(UniValue::VBOOL));
    else
        RPCTypeCheck(params, boost::assign::list_of(UniValue::VBOOL)(UniValue::VARR));

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

    if (params.size() == 1) {
        if (fUnlock)
            pwalletMain->UnlockAllCoins();
        return true;
    }

    UniValue outputs = params[1].get_array();
    for (size_t idx = 0; idx < outputs.size(); idx++) {
        const UniValue& output = outputs[idx];
        if (!output.isObject())
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected object");
        const UniValue& o = output.get_obj();

        RPCTypeCheckObj(o, boost::assign::map_list_of("txid", UniValue::VSTR)("vout", UniValue::VNUM));

        string txid = find_value(o, "txid").get_str();
        if (!IsHex(txid))
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected hex txid");

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

        COutPoint outpt(uint256S(txid), nOutput);

        if (fUnlock)
            pwalletMain->UnlockCoin(outpt);
        else
            pwalletMain->LockCoin(outpt);
    }

    return true;
}

UniValue z_listlockunspent(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 0)
        throw runtime_error(
            "z_listlockunspent\n"
            "\nReturns list of temporarily locked shielded outputs which are currently unspendable. They are locked\n"
            "\nbecause they are currently in the process of being spent by an operation such as z_sendmany/z_mergetoaddress/etc.\n"
            "\nIf that operation succeeds, they will become spent. If it fails they will be unlocked and become\n"
            "\nspendable again.\n"
            "\nResult:\n"
            "[\n"
            "  {\n"
            "    \"txid\"     : \"transactionid\",     (string) The transaction id locked\n"
            "    \"outindex\" : n                      (integer) The shielded output index\n"
            "  }\n"
            "  ,...\n"
            "]\n"
            "\nExamples:\n"
            "\nList the locked Sapling notes\n"
            + HelpExampleCli("z_listlockunspent", "") +
            "\nAs a json rpc call\n"
            + HelpExampleRpc("z_listlockunspent", "")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);
    vector<SaplingOutPoint> ops = pwalletMain->ListLockedSaplingNotes();

    UniValue ret(UniValue::VARR);

    BOOST_FOREACH(SaplingOutPoint &op, ops) {
        UniValue o(UniValue::VOBJ);

        o.push_back(Pair("txid", op.hash.GetHex()));
        o.push_back(Pair("outindex", (int) op.n));
        ret.push_back(o);
    }

    return ret;
}

UniValue listlockunspent(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 0)
        throw runtime_error(
            "listlockunspent\n"
            "\nReturns list of temporarily unspendable outputs.\n"
            "See the lockunspent call to lock and unlock transactions for spending.\n"
            "\nResult:\n"
            "[\n"
            "  {\n"
            "    \"txid\" : \"transactionid\",     (string) The transaction id locked\n"
            "    \"vout\" : n                      (numeric) The vout value\n"
            "  }\n"
            "  ,...\n"
            "]\n"
            "\nExamples:\n"
            "\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", "")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    vector<COutPoint> vOutpts;
    pwalletMain->ListLockedCoins(vOutpts);

    UniValue ret(UniValue::VARR);

    BOOST_FOREACH(COutPoint &outpt, vOutpts) {
        UniValue o(UniValue::VOBJ);

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

    return ret;
}

UniValue settxfee(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 1 || params.size() > 1)
        throw runtime_error(
            "settxfee amount\n"
            "\nSet the transaction fee per kB.\n"
            "\nArguments:\n"
            "1. amount         (numeric, required) The transaction fee in " + strprintf("%s",hush_chainname()) + "/kB rounded to the nearest 0.00000001\n"
            "\nResult\n"
            "true|false        (boolean) Returns true if successful\n"
            "\nExamples:\n"
            + HelpExampleCli("settxfee", "0.00001")
            + HelpExampleRpc("settxfee", "0.00001")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    // Amount
    CAmount nAmount = AmountFromValue(params[0]);

    payTxFee = CFeeRate(nAmount, 1000);
    return true;
}

UniValue getwalletinfo(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() != 0)
        throw runtime_error(
            "getwalletinfo\n"
            "Returns an object containing various wallet state info.\n"
            "\nResult:\n"
            "{\n"
            "  \"walletversion\": xxxxx,     (numeric) the wallet version\n"
            "  \"balance\": xxxxxxx,         (numeric) the total confirmed balance of the wallet in " + strprintf("%s",hush_chainname()) + "\n"
            "  \"unconfirmed_balance\": xxx, (numeric) the total unconfirmed balance of the wallet in " + strprintf("%s",hush_chainname()) + "\n"
            "  \"immature_balance\": xxxxxx, (numeric) the total immature balance of the wallet in " + strprintf("%s",hush_chainname()) + "\n"
            "  \"txcount\": xxxxxxx,         (numeric) the total number of transactions in the wallet\n"
            "  \"keypoololdest\": xxxxxx,    (numeric) the timestamp (seconds since GMT epoch) of the oldest pre-generated key in the key pool\n"
            "  \"keypoolsize\": xxxx,        (numeric) how many new keys are pre-generated\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"
            "  \"seedfp\": \"uint256\",        (string) the BLAKE2b-256 hash of the HD seed\n"
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("getwalletinfo", "")
            + HelpExampleRpc("getwalletinfo", "")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    const CHDChain& hdChain = pwalletMain->GetHDChain();
    UniValue obj(UniValue::VOBJ);
    obj.push_back(Pair("walletversion", pwalletMain->GetVersion()));
    obj.push_back(Pair("balance",       ValueFromAmount(pwalletMain->GetBalance())));
    obj.push_back(Pair("unconfirmed_balance", ValueFromAmount(pwalletMain->GetUnconfirmedBalance())));
    obj.push_back(Pair("immature_balance",    ValueFromAmount(pwalletMain->GetImmatureBalance())));
    obj.push_back(Pair("txcount",       (int)pwalletMain->mapWallet.size()));
    obj.push_back(Pair("keypoololdest", pwalletMain->GetOldestKeyPoolTime()));
    obj.push_back(Pair("keypoolsize",   (int)pwalletMain->GetKeyPoolSize()));
    obj.push_back(Pair("saplingAccountCounter", (int)hdChain.saplingAccountCounter));
    if (pwalletMain->IsCrypted())
        obj.push_back(Pair("unlocked_until", nWalletUnlockTime));
    obj.push_back(Pair("paytxfee",      ValueFromAmount(payTxFee.GetFeePerK())));
    uint256 seedFp = pwalletMain->GetHDChain().seedFp;
    if (!seedFp.IsNull())
         obj.push_back(Pair("seedfp", seedFp.GetHex()));
    return obj;
}

UniValue resendwallettransactions(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() != 0)
        throw runtime_error(
            "resendwallettransactions\n"
            "Immediately re-broadcast unconfirmed wallet transactions to all peers.\n"
            "Intended only for testing; the wallet code periodically re-broadcasts\n"
            "automatically.\n"
            "Returns array of transaction ids that were re-broadcast.\n"
            );

    LOCK2(cs_main, pwalletMain->cs_wallet);

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

extern uint32_t hush_segid32(char *coinaddr);

UniValue listunspent(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 3)
        throw runtime_error(
            "listunspent ( minconf maxconf  [\"address\",...] )\n"
            "\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"
            "Results are an array of Objects, each of which has:\n"
            "{txid, vout, scriptPubKey, amount, confirmations}\n"
            "\nArguments:\n"
            "1. minconf          (numeric, optional, default=1) The minimum confirmations to filter\n"
            "2. maxconf          (numeric, optional, default=9999999) The maximum confirmations to filter\n"
            "3. \"addresses\"    (string) A json array of " + strprintf("%s",hush_chainname()) + " addresses to filter\n"
            "    [\n"
            "      \"address\"   (string) " + strprintf("%s",hush_chainname()) + " address\n"
            "      ,...\n"
            "    ]\n"
            "\nResult\n"
            "[                   (array of json object)\n"
            "  {\n"
            "    \"txid\" : \"txid\",          (string) the transaction id \n"
            "    \"vout\" : n,               (numeric) the vout value\n"
            "    \"generated\" : true|false  (boolean) true if txout is a coinbase transaction output\n"
            "    \"address\" : \"address\",    (string) the DragonX address\n"
            "    \"account\" : \"account\",    (string) DEPRECATED. The associated account, or \"\" for the default account\n"
            "    \"scriptPubKey\" : \"key\",   (string) the script key\n"
            "    \"amount\" : x.xxx,         (numeric) the transaction 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"
            "  }\n"
            "  ,...\n"
            "]\n"

            "\nExamples\n"
            + HelpExampleCli("listunspent", "")
            + HelpExampleCli("listunspent", "6 9999999 \"[\\\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\\\",\\\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\\\"]\"")
            + HelpExampleRpc("listunspent", "6, 9999999 \"[\\\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\\\",\\\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\\\"]\"")
        );

    RPCTypeCheck(params, boost::assign::list_of(UniValue::VNUM)(UniValue::VNUM)(UniValue::VARR));

    int nMinDepth = 1;
    if (params.size() > 0)
        nMinDepth = params[0].get_int();

    int nMaxDepth = 9999999;
    if (params.size() > 1)
        nMaxDepth = params[1].get_int();

    std::set<CTxDestination> destinations;
    if (params.size() > 2) {
        UniValue inputs = params[2].get_array();
        for (size_t 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 DragonX address: ") + input.get_str());
            }
            if (!destinations.insert(dest).second) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, std::string("Invalid parameter, duplicated address: ") + input.get_str());
            }
        }
    }

    UniValue results(UniValue::VARR);
    vector<COutput> vecOutputs;
    assert(pwalletMain != NULL);
    LOCK2(cs_main, pwalletMain->cs_wallet);
    pwalletMain->AvailableCoins(vecOutputs, false, NULL, true);
    BOOST_FOREACH(const COutput& out, vecOutputs) {
        int nDepth    = out.tx->GetDepthInMainChain();
        if( nMinDepth > 1 ) {
            int nHeight    = tx_height(out.tx->GetHash());
            int dpowconfs  = hush_dpowconfs(nHeight, nDepth);
            if (dpowconfs < nMinDepth || dpowconfs > nMaxDepth)
                continue;
        } else {
            if (out.nDepth < nMinDepth || out.nDepth > nMaxDepth)
                continue;
        }

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

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

        CAmount nValue = out.tx->vout[out.i].nValue;
        const CScript& pk = out.tx->vout[out.i].scriptPubKey;
        UniValue entry(UniValue::VOBJ); int32_t txheight = 0;
        entry.push_back(Pair("txid", out.tx->GetHash().GetHex()));
        entry.push_back(Pair("vout", out.i));
        entry.push_back(Pair("generated", out.tx->IsCoinBase()));

        if (fValidAddress) {
            entry.push_back(Pair("address", EncodeDestination(address)));
            entry.push_back(Pair("segid", (int)hush_segid32((char*)EncodeDestination(address).c_str()) & 0x3f ));

            if (pwalletMain->mapAddressBook.count(address))
                entry.push_back(Pair("account", pwalletMain->mapAddressBook[address].name));

            if (scriptPubKey.IsPayToScriptHash()) {
                const CScriptID& hash = boost::get<CScriptID>(address);
                CScript redeemScript;
                if (pwalletMain->GetCScript(hash, redeemScript))
                    entry.push_back(Pair("redeemScript", HexStr(redeemScript.begin(), redeemScript.end())));
            }
        }
        entry.push_back(Pair("amount", ValueFromAmount(nValue)));
        if ( out.tx->nLockTime != 0 )
        {
            BlockMap::iterator it = mapBlockIndex.find(pcoinsTip->GetBestBlock());
            CBlockIndex *tipindex,*pindex = it->second;
            uint32_t locktime;
        }
        else if ( chainActive.LastTip() != 0 )
            txheight = (chainActive.LastTip()->GetHeight() - out.nDepth - 1);
        entry.push_back(Pair("scriptPubKey", HexStr(scriptPubKey.begin(), scriptPubKey.end())));
        entry.push_back(Pair("rawconfirmations",out.nDepth));
        entry.push_back(Pair("confirmations",hush_dpowconfs(txheight,out.nDepth)));
        entry.push_back(Pair("spendable", out.fSpendable));
        results.push_back(entry);
    }
    return results;
}

// Return current blockchain status, wallet balance, address balance and the last 200 transactions
UniValue getalldata(const UniValue& params, bool fHelp,const CPubKey&)
{
    if (fHelp || params.size() > 3)
        throw runtime_error(
            "getalldata \"datatype transactiontype \"\n"
            "\n"
            "This function only returns information on wallet addresses with full spending keys."
            "\n"
            "\nArguments:\n"
            "1. \"datatype\"     (integer, required) \n"
            "                    Value of 0: Return address, balance, transactions and blockchain info\n"
            "                    Value of 1: Return address, balance, blockchain info\n"
            "                    Value of 2: Return transactions and blockchain info\n"
            "2. \"transactiontype\"     (integer, optional) \n"
            "                    Value of 1: Return all transactions in the last 24 hours\n"
            "                    Value of 2: Return all transactions in the last 7 days\n"
            "                    Value of 3: Return all transactions in the last 30 days\n"
            "                    Other number: Return all transactions in the last 24 hours\n"
            "3. \"transactioncount\"     (integer, optional) \n"
            "\nResult:\n"
            "\nExamples:\n"
            + HelpExampleCli("getalldata", "0")
            + HelpExampleRpc("getalldata", "0")
        );

    LOCK(cs_main);

    UniValue returnObj(UniValue::VOBJ);
    int connectionCount = 0;
    {
        LOCK2(cs_main, cs_vNodes);
        connectionCount = (int)vNodes.size();
    }

    LOCK2(cs_main, pwalletMain->cs_wallet);
    int nMinDepth = 1;
    balancestruct txAmounts;

    CAmount confirmed          = 0;
    CAmount unconfirmed        = 0;
    CAmount locked             = 0;
    CAmount immature           = 0;
    CAmount privateConfirmed   = 0;
    CAmount privateUnconfirmed = 0;
    CAmount privateLocked      = 0;
    CAmount privateImmature    = 0;
    txAmounts.confirmed        = 0;
    txAmounts.unconfirmed      = 0;
    txAmounts.locked           = 0;
    txAmounts.immature         = 0;

    //Create map of addresses
    //Add all Transaparent addresses to list
    map<string, balancestruct> addressBalances;
    BOOST_FOREACH(const PAIRTYPE(CTxDestination, CAddressBookData)& item, pwalletMain->mapAddressBook)
    {
        string addressString = EncodeDestination(item.first);
        if (addressBalances.count(addressString) == 0)
          addressBalances.insert(make_pair(addressString,txAmounts));
    }

    // Add all zaddrs
    std::set<libzcash::SaplingPaymentAddress> zs_addresses;
    pwalletMain->GetSaplingPaymentAddresses(zs_addresses);
    for (auto addr : zs_addresses) {
      string addressString = EncodePaymentAddress(addr);
      if (addressBalances.count(addressString) == 0)
        addressBalances.insert(make_pair(addressString,txAmounts));
    }

    //Create Ordered List
    map<int64_t,CWalletTx> orderedTxs;
    for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it) {
      const uint256& wtxid = it->first;
      const CWalletTx& wtx = (*it).second;
      orderedTxs.insert(std::pair<int64_t,CWalletTx>(wtx.nOrderPos, wtx));

      unsigned int txType = 0;
      // 0 Unassigend
      // 1 Immature
      // 2 Unconfirmed
      // 3 Locked

      if (!CheckFinalTx(wtx))
          continue;

      if (wtx.GetDepthInMainChain() < 0)
          continue;

      if (wtx.mapSaplingNoteData.size() == 0 && !wtx.IsTrusted())
          continue;

      //Assign Immature
      if (txType == 0 && wtx.IsCoinBase() && wtx.GetBlocksToMaturity() > 0)
        txType = 1;

      //Assign Unconfirmed
      if (txType == 0 && wtx.GetDepthInMainChain() == 0)
        txType = 2;

      for (unsigned int i = 0; i < wtx.vout.size(); i++) {

        CTxDestination address;
        if (!ExtractDestination(wtx.vout[i].scriptPubKey, address))
          continue;

        //excluded coins that we dont have the spending keys for
        isminetype mine = IsMine(*pwalletMain,address);
        if (mine != ISMINE_SPENDABLE)
          continue;

        //Exclude spent coins
        if (pwalletMain->IsSpent(wtxid, i))
          continue;

        //Assign locked
        if (txType == 0 && pwalletMain->IsLockedCoin((*it).first, i))
          txType = 3;

        //Assign Locked to 10000 Zer inputs for Zeronodes
        //if (txType == 0 && fZeroNode && wtx.vout[i].nValue == 10000 * COIN)
        //  txType = 3;

        string addressString = EncodeDestination(address);
        if (addressBalances.count(addressString) == 0)
          addressBalances.insert(make_pair(addressString,txAmounts));

        if (txType == 0) {
          addressBalances.at(addressString).confirmed += wtx.vout[i].nValue;
          confirmed += wtx.vout[i].nValue;
        } else if (txType == 1) {
          addressBalances.at(addressString).immature+= wtx.vout[i].nValue;
          immature += wtx.vout[i].nValue;
        } else if (txType == 2) {
          addressBalances.at(addressString).unconfirmed += wtx.vout[i].nValue;
          unconfirmed += wtx.vout[i].nValue;
        } else if (txType == 3) {
          addressBalances.at(addressString).locked += wtx.vout[i].nValue;
          locked += wtx.vout[i].nValue;
        }
      }

      for (auto & pair : wtx.mapSaplingNoteData) {
        SaplingOutPoint op = pair.first;
        SaplingNoteData nd = pair.second;

        //Skip Spent
        if (nd.nullifier && pwalletMain->IsSaplingSpent(*nd.nullifier))
            continue;

        //Decrypt sapling incoming commitments using IVK
        for (auto addr : zs_addresses) {
          libzcash::SaplingExtendedSpendingKey extsk;
          if (pwalletMain->GetSaplingExtendedSpendingKey(addr, extsk)) {
            auto pt = libzcash::SaplingNotePlaintext::decrypt(
              wtx.vShieldedOutput[op.n].encCiphertext,extsk.expsk.full_viewing_key().in_viewing_key(),wtx.vShieldedOutput[op.n].ephemeralKey,wtx.vShieldedOutput[op.n].cm);

            if (txType == 0 && pwalletMain->IsLockedNote(op))
                txType == 3;

            if (pt) {
              auto note = pt.get();
              string addressString = EncodePaymentAddress(addr);
              if (addressBalances.count(addressString) == 0)
                addressBalances.insert(make_pair(addressString,txAmounts));

              if (txType == 0) {
                addressBalances.at(addressString).confirmed += note.value();
                privateConfirmed += note.value();
              } else if (txType == 1) {
                addressBalances.at(addressString).immature += note.value();
                privateImmature += note.value();
              } else if (txType == 2) {
                addressBalances.at(addressString).unconfirmed += note.value();
                privateUnconfirmed += note.value();
              } else if (txType == 3) {
                addressBalances.at(addressString).locked += note.value();
                privateLocked += note.value();
              }

              continue;

            }
          }
        }
      }
    }


    CAmount nBalance = 0;
    CAmount nBalanceUnconfirmed = 0;
    CAmount nBalanceTotal = 0;
    CAmount totalBalance= confirmed + privateConfirmed;
    CAmount totalUnconfirmed = unconfirmed + privateUnconfirmed;


    returnObj.push_back(Pair("connectionCount", connectionCount));
    returnObj.push_back(Pair("besttime", chainActive.Tip()->GetBlockTime()));
    returnObj.push_back(Pair("bestblockhash", chainActive.Tip()->GetBlockHash().GetHex()));
    returnObj.push_back(Pair("transparentbalance", FormatMoney(confirmed)));
    returnObj.push_back(Pair("transparentbalanceunconfirmed", FormatMoney(unconfirmed)));
    returnObj.push_back(Pair("privatebalance", FormatMoney(privateConfirmed)));
    returnObj.push_back(Pair("privatebalanceunconfirmed", FormatMoney(privateUnconfirmed)));
    returnObj.push_back(Pair("totalbalance", FormatMoney(totalBalance)));
    returnObj.push_back(Pair("totalunconfirmed", FormatMoney(totalUnconfirmed)));
    returnObj.push_back(Pair("lockedbalance", FormatMoney(locked)));
    returnObj.push_back(Pair("immaturebalance", FormatMoney(immature)));

    //get all t address
    UniValue addressbalance(UniValue::VARR);
    UniValue addrlist(UniValue::VOBJ);

    if (params.size() > 0 && (params[0].get_int() == 1 || params[0].get_int() == 0))
    {
      for (map<string, balancestruct>::iterator it = addressBalances.begin(); it != addressBalances.end(); ++it) {
        UniValue addr(UniValue::VOBJ);
        addr.push_back(Pair("amount", ValueFromAmount(it->second.confirmed)));
        addr.push_back(Pair("unconfirmed", ValueFromAmount(it->second.unconfirmed)));
        addr.push_back(Pair("locked", ValueFromAmount(it->second.locked)));
        addr.push_back(Pair("immature", ValueFromAmount(it->second.immature)));
        addr.push_back(Pair("ismine", true));
        addrlist.push_back(Pair(it->first, addr));
      }
    }

    addressbalance.push_back(addrlist);
    returnObj.push_back(Pair("addressbalance", addressbalance));


    //get transactions
    int nCount = 200;
    UniValue trans(UniValue::VARR);
    UniValue transTime(UniValue::VARR);

    if (params.size() == 3)
    {
      nCount = params[2].get_int();
    }

    if (params.size() > 0 && (params[0].get_int() == 2 || params[0].get_int() == 0))
    {
        int day = 365 * 30; //30 Years
        if(params.size() > 1)
        {
            if(params[1].get_int() == 1)
            {
                day = 1;
            }
            else if(params[1].get_int() == 2)
            {
                day = 7;
            }
            else if(params[1].get_int() == 3)
            {
                day = 30;
            }
            else if(params[1].get_int() == 4)
            {
                day = 90;
            }
            else if(params[1].get_int() == 5)
            {
                day = 365;
            }
        }


        uint64_t t = GetTime();
        for (map<int64_t,CWalletTx>::reverse_iterator it = orderedTxs.rbegin(); it != orderedTxs.rend(); ++it)
        {
            const CWalletTx& wtx = (*it).second;

            if (!CheckFinalTx(wtx))
                continue;

            if (wtx.mapSaplingNoteData.size() == 0 && !wtx.IsTrusted())
                continue;

            //Excude transactions with less confirmations than required
            if (wtx.GetDepthInMainChain() < 0 )
              continue;

            //Exclude Transactions older that max days old
            if (wtx.GetDepthInMainChain() > 0 && mapBlockIndex[wtx.hashBlock]->GetBlockTime() < (t - (day * 60 * 60 * 24))) {
              continue;
            }

            zsWalletTxJSON(wtx, trans, "*", false, 0);
            if (trans.size() >= nCount) break;

        }

        vector<UniValue> arrTmp = trans.getValues();

        std::reverse(arrTmp.begin(), arrTmp.end()); // Return oldest to newest

        trans.clear();
        trans.setArray();
        trans.push_backV(arrTmp);
    }

    returnObj.push_back(Pair("listtransactions", trans));
    return returnObj;
}

UniValue z_consolidationstatus(const UniValue& params, bool fHelp, const CPubKey& mypk)
{

    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 0)
        throw runtime_error(
            "z_consolidationstatus\n"
            "\nGive details about consolidation operations since the node was started."
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("z_consolidationstatus", "")
            + HelpExampleRpc("z_consolidationstatus", "")
        );

      LOCK2(cs_main, pwalletMain->cs_wallet);

      UniValue ret(UniValue::VOBJ);
      ret.push_back(Pair("consolidation", pwalletMain->fSaplingConsolidationEnabled));
      ret.push_back(Pair("running", pwalletMain->fConsolidationRunning));
      ret.push_back(Pair("amount_consolidated", pwalletMain->amountConsolidated));
      ret.push_back(Pair("next_consolidation", pwalletMain->nextConsolidation));
      ret.push_back(Pair("consolidationinterval", pwalletMain->consolidationInterval));
      ret.push_back(Pair("consolidationaddress", pwalletMain->consolidationAddress));
      ret.push_back(Pair("consolidationtxfee",(int)fConsolidationTxFee));

      return ret;
}

UniValue z_sweepstatus(const UniValue& params, bool fHelp, const CPubKey& mypk)
{

    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 0)
        throw runtime_error(
            "z_sweepstatus\n"
            "\nGive details about zsweep operations since the node was started."
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("z_sweepstatus", "")
            + HelpExampleRpc("z_sweepstatus", "")
        );

      LOCK2(cs_main, pwalletMain->cs_wallet);

      UniValue ret(UniValue::VOBJ);
      ret.push_back(Pair("zsweep", pwalletMain->fSweepEnabled));
      ret.push_back(Pair("running", pwalletMain->fSweepRunning));
      ret.push_back(Pair("amount_swept", pwalletMain->amountSwept));
      ret.push_back(Pair("next_zsweep", pwalletMain->nextSweep));
      ret.push_back(Pair("zsweepinterval", pwalletMain->sweepInterval));
      ret.push_back(Pair("zsweepaddress", pwalletMain->sweepAddress));
      UniValue excludes(UniValue::VARR);
      BOOST_FOREACH(const std::string& exclude, pwalletMain->sweepExcludeAddresses ) {
        excludes.push_back(exclude);
      }
      ret.push_back(Pair("zsweepexclude", excludes));
      ret.push_back(Pair("zsweepmaxinputs", pwalletMain->sweepMaxInputs));
      ret.push_back(Pair("zsweepfee", pwalletMain->sweepFee));
      ret.push_back(Pair("zsweepexternal", pwalletMain->fSweepExternalEnabled));

      return ret;
}

UniValue z_autoshieldstatus(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 0)
        throw runtime_error(
            "z_autoshieldstatus\n"
            "\nReport the state of automatic coinbase shielding: whether it is on, where it sends,\n"
            "and -- when it is off -- why.\n"
            "\nResult:\n"
            "{\n"
            "  \"autoshield\" : true|false,          (boolean) whether auto-shielding is enabled\n"
            "  \"running\" : true|false,             (boolean) whether a round is in flight\n"
            "  \"next_autoshield\" : n,              (numeric) height of the next round\n"
            "  \"autoshieldinterval\" : n,           (numeric) blocks between rounds\n"
            "  \"autoshieldaddress\" : \"zaddr\",     (string) resolved destination; empty until first resolved\n"
            "  \"autoshieldfee\" : n,                (numeric) fee in puposhis\n"
            "  \"autoshieldminutxos\" : n,           (numeric) minimum matured coinbase utxos per round\n"
            "  \"hdseedorigin\" : n,                 (numeric) 0 unrecorded, 1 created, 2 restored, 3 retrofit, 4 unknown\n"
            "  \"hdseedorigin_desc\" : \"...\",       (string) readable form of hdseedorigin\n"
            "  \"seed_recoverable\" : true|false,    (boolean) whether a seed phrase can be exported\n"
            "  \"disabled_reason\" : \"...\"          (string) why auto-shielding is not running, if it is not\n"
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("z_autoshieldstatus", "")
            + HelpExampleRpc("z_autoshieldstatus", "")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    UniValue ret(UniValue::VOBJ);
    ret.push_back(Pair("autoshield", pwalletMain->fAutoShieldEnabled));
    ret.push_back(Pair("running", pwalletMain->fAutoShieldRunning));
    ret.push_back(Pair("next_autoshield", pwalletMain->nextAutoShield));
    ret.push_back(Pair("autoshieldinterval", pwalletMain->autoShieldInterval));
    ret.push_back(Pair("autoshieldaddress", pwalletMain->autoShieldAddress));
    ret.push_back(Pair("autoshieldfee", pwalletMain->autoShieldFee));
    ret.push_back(Pair("autoshieldminutxos", pwalletMain->autoShieldMinUtxos));

    int origin = pwalletMain->hdSeedOrigin;
    std::string desc;
    switch (origin) {
        case CWallet::HDSEED_ORIGIN_CREATED:  desc = "created on an empty wallet"; break;
        case CWallet::HDSEED_ORIGIN_RESTORED: desc = "restored from -mnemonic/-hdseed"; break;
        case CWallet::HDSEED_ORIGIN_RETROFIT: desc = "retrofitted onto a pre-existing wallet"; break;
        case CWallet::HDSEED_ORIGIN_UNKNOWN:  desc = "predates provenance recording"; break;
        default:                              desc = "not yet recorded"; break;
    }
    ret.push_back(Pair("hdseedorigin", origin));
    ret.push_back(Pair("hdseedorigin_desc", desc));
    ret.push_back(Pair("seed_recoverable", pwalletMain->IsMnemonicSeed()));

    // Say why it is off. A silent "false" is exactly what made the destination
    // un-inspectable in the first place.
    std::string why = "";
    if (!pwalletMain->fAutoShieldEnabled) {
        if (origin != CWallet::HDSEED_ORIGIN_CREATED && origin != CWallet::HDSEED_ORIGIN_RESTORED)
            why = "HD seed origin is not known-recoverable; back the seed up and pass -autoshield=1";
        else
            why = "disabled by -autoshield=0";
    } else if (pwalletMain->IsLocked()) {
        why = "wallet is locked; rounds are skipped until it is unlocked";
    } else if (pwalletMain->fSweepRunning || pwalletMain->fConsolidationRunning) {
        // Autoshield is mutually exclusive with sweep and consolidation. Without
        // this the RPC reports autoshield=true, running=false and an empty
        // reason while no round can actually start.
        why = strprintf("deferred while %s is running; rounds resume when it finishes",
                        pwalletMain->fSweepRunning ? "z_sweep" : "sapling consolidation");
    } else if (pwalletMain->autoShieldAddress.empty()) {
        why = "no destination resolved yet; one will be derived from the HD seed on the first round";
    }
    ret.push_back(Pair("disabled_reason", why));

    return ret;
}

UniValue z_listreceivedaddress(const UniValue& params, bool fHelp,const CPubKey&)
{
  if (!EnsureWalletIsAvailable(fHelp))
      return NullUniValue;

  if (fHelp || params.size() > 5 || params.size() < 1)
      throw runtime_error(
        "z_listreceivedaddress\n"
        "\nReturns received outputs.\n"
        "\n"
        "This function only returns information on addresses with full spending keys."
        "This function is slow if no filters are given, use z_listreceivedbyaddress if you do not need filters."
        "\n"
        "\nArguments:\n"
        "1. \"dragonxaddress:\"         (string, required) \n"
        "\n"
        "2. \"Minimum Confimations:\"   (numeric, optional, default=0) \n"
        "\n"
        "3. \"Filter Type:\"            (numeric, optional, default=0) \n"
        "                               Value of 0: Returns all transactions in the wallet\n"
        "                               Value of 1: Returns the last x days of transactions\n"
        "                               Value of 2: Returns transactions with confimations less than x\n"
        "\n"
        "4. \"Filter:\"                 (numeric, optional, default=999999) \n"
        "                               Filter Type equal 0: paramater ignored\n"
        "                               Filter Type equal 1: number represents the number of days returned\n"
        "                               Filter Type equal 2: number represents the max confirmations for transaction to be returned\n"
        "\n"
        "5. \"Count:\"                 (numeric, optional, default=9999999) \n"
        "                               Last n number of transactions returned\n"
        "\n"
        "Default Parameters:\n"
        "2. 0 - O confimations required\n"
        "3. 0 - Returns all transactions\n"
        "4. 9999999 - Ignored\n"
        "5. 9999999 - Return the last 9,999,999 transactions.\n"
        "\n"
        "\nResult:\n"
        "   \"txid\":  \"transactionid\",           (string) The transaction id.\n"
        "   \"coinbase\": \"coinbase\",             (string) Coinbase transaction, true or false\n"
        "   \"category\": \"category\",             (string) orphan (coinbase), immature (coinbase), generate (coinbase), regular\n"
        "   \"blockhash\": \"hashvalue\",           (string) The block hash containing the transaction\n"
        "   \"blockindex\": n,                    (numeric) The block index containing the transaction\n"
        "   \"blocktime\": n,                     (numeric) The block time in seconds of the block containing the transaction, 0 for unconfirmed transactions\n"
        "   \"expiryheight\": n,                  (numeric) The expiry height of the transaction\n"
        "   \"confirmations\": n,                 (numeric) The number of confirmations for the transaction\n"
        "   \"time\": xxx,                        (numeric) The transaction time in seconds of the transaction\n"
        "   \"size\": xxx,                        (numeric) The transaction size\n"
        "   \"walletconflicts\": [conflicts],     An array of wallet conflicts\n"
        "   \"recieved\": {                       A list of receives from the transaction\n"
        "       \"transparentReceived\": [{           An Array of txos received for transparent addresses\n"
        "           \"address\": \"dragonxaddress\",       (string) DragonX transparent address (t-address)\n"
        "           \"scriptPubKey\": \"script\",         (string) Script for the transparent address (t-address)\n"
        "           \"amount\": x.xxxx,                 (numeric) Value of output being received " + CURRENCY_UNIT + ", positive for receives\n"
        "           \"vout\": : n,                      (numeric) the vout value\n"
        "       }],\n"
        "       \"saplingReceived\": [{               An Array of utxos/notes received for sapling addresses\n"
        "           \"address\": \"dragonxaddress\",       (string) Shielded address (z-address)\n"
        "           \"amount\": x.xxxx,                 (numeric) Value of output being received " + CURRENCY_UNIT + ", positive for receives\n"
        "           \"memo\": xxxxx,            (string) hexademical string representation of memo field\n"
        "           \"memoStr\" : \"memo\",             (string) Only returned if memo contains valid UTF-8 text.\n"
        "           \"sheildedOutputIndex\": n,         (numeric) The index of the ShieledOutput\n"
        "           \"change\": true/false              (string) The note is change. This can result from sending funds\n"
        "                                                        to the same address they came from, or incomplete useage\n"
        "                                                        resulting in the remainder of the note used being sent back to the\n"
        "                                                        same z-address.\n"
        "       }],\n"
        "   },\n"
        "\nExamples:\n"
        + HelpExampleCli("z_listreceivedaddress", "\"*\"")
        + HelpExampleRpc("z_listreceivedaddress", "RHushEyeDm7XwtaTWtyCbjGQumYyV8vMjn")
    );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    UniValue ret(UniValue::VARR);

    //param values
    int64_t nMinConfirms = 0;
    int64_t nFilterType = 0;
    int64_t nFilter = 999999;
    int64_t nCount = 9999999;

    if (params.size() >= 2)
      nMinConfirms = params[1].get_int64();

    if (params.size() >= 4) {
      nFilterType = params[2].get_int64();
      nFilter = params[3].get_int64();
    }

    if (params.size() == 5) {
      nCount = params[4].get_int64();
    }

    if (nMinConfirms < 0)
      throw runtime_error("Minimum confimations must be greater that 0");

    if (nFilterType < 0 || nFilterType > 2)
        throw runtime_error("Filter type must be 0, 1 or 2.");

    if (nFilter < 0)
        throw runtime_error("Filter must be greater that 0.");

    //Created Ordered Transaction Map
    map<int64_t,CWalletTx> orderedTxs;
    for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it) {
      const CWalletTx& wtx = (*it).second;
      orderedTxs.insert(std::pair<int64_t,CWalletTx>(wtx.nOrderPos, wtx));
    }


    uint64_t t = GetTime();
    //Reverse Iterate thru transactions
    for (map<int64_t,CWalletTx>::reverse_iterator it = orderedTxs.rbegin(); it != orderedTxs.rend(); ++it) {
        const CWalletTx& wtx = (*it).second;
        bool includeTransaction = true;

        //Excude transactions with less confirmations than required
        if (wtx.GetDepthInMainChain() < nMinConfirms) {
            includeTransaction = false;
        }

        //Exclude Transactions older that max days old
        if (wtx.GetDepthInMainChain() > 0) {
          if (nFilterType == 1 && mapBlockIndex[wtx.hashBlock]->GetBlockTime() < (t - (nFilter * 60 * 60 * 24))) {
            includeTransaction = false;
          }
        }

        //Exclude transactions with greater than max confirmations
        if (nFilterType == 2 && wtx.GetDepthInMainChain() > nFilter){
            includeTransaction = false;
        }

        if (includeTransaction) {
          zsWalletTxJSON(wtx, ret, params[0].get_str() , true, 2);
        }

        if (ret.size() > nCount) break;
    }

    return ret;
}

UniValue z_getinfo(const UniValue& params, bool fHelp,const CPubKey&)
{
  if (!EnsureWalletIsAvailable(fHelp))
      return NullUniValue;

  if (fHelp || params.size() > 0) {
      throw runtime_error(
        "z_getinfo\n"
        "\nReturns various information about shielded operations, such as sapling consolidation details.\n"
            "\nExamples:\n"
            + HelpExampleCli("z_getinfo", "")
            + HelpExampleRpc("z_getinfo", "")
        );
  }

  LOCK2(cs_main, pwalletMain->cs_wallet);

  UniValue result(UniValue::VOBJ);
  result.push_back(Pair("zindex",(bool)fZindex));
  result.push_back(Pair("consolidation",(bool)pwalletMain->fSaplingConsolidationEnabled ));
  result.push_back(Pair("consolidationtxfee",(int)fConsolidationTxFee));
  result.push_back(Pair("deletetx",(bool)fTxDeleteEnabled));
  result.push_back(Pair("delete_interval",(int)fDeleteInterval));
  result.push_back(Pair("keeptxnum",(int)fKeepLastNTransactions));
  result.push_back(Pair("keeptxfornblocks",(int)fDeleteTransactionsAfterNBlocks));

  std::set<libzcash::SaplingPaymentAddress> saplingzaddrs = {};
  pwalletMain->GetSaplingPaymentAddresses(saplingzaddrs);
  result.push_back(Pair("num_sapling_zaddrs",(int)saplingzaddrs.size()));

  std::shared_ptr<AsyncRPCQueue> q = getAsyncRPCQueue();
  std::vector<AsyncRPCOperationId> ids = q->getAllOperationIds();
  result.push_back(Pair("num_op_ids",(int)ids.size()));

  return result;
}

UniValue z_listsentbyaddress(const UniValue& params, bool fHelp,const CPubKey&)
{
  if (!EnsureWalletIsAvailable(fHelp))
      return NullUniValue;

  if (fHelp || params.size() > 5 || params.size() == 3)
      throw runtime_error(
        "z_listsentbyaddress\n"
        "\nReturns decrypted DragonX outputs sent to a single address.\n"
        "\n"
        "This function only returns information on addresses sent from wallet addresses with full spending keys."
        "\n"
        "\nArguments:\n"
        "1. \"dragonxaddress:\"         (string, required) \n"
        "\n"
        "2. \"Minimum Confimations:\"   (numeric, optional, default=0) \n"
        "\n"
        "3. \"Filter Type:\"            (numeric, optional, default=0) \n"
        "                               Value of 0: Returns all transactions in the wallet\n"
        "                               Value of 1: Returns the last x days of transactions\n"
        "                               Value of 2: Returns transactions with confimations less than x\n"
        "\n"
        "4. \"Filter:\"                 (numeric, optional, default=999999) \n"
        "                               Filter Type equal 0: paramater ignored\n"
        "                               Filter Type equal 1: number represents the number of days returned\n"
        "                               Filter Type equal 2: number represents the max confirmations for transaction to be returned\n"
        "\n"
        "5. \"Count:\"                 (numeric, optional, default=9999999) \n"
        "                               Last n number of transactions returned\n"
        "\n"
        "Default Parameters:\n"
        "2. 0 - O confimations required\n"
        "3. 0 - Returns all transactions\n"
        "4. 9999999 - Ignored\n"
        "5. 9999999 - Return the last 9,999,999 transactions.\n"
        "\n"
        "\nResult:\n"
        "   \"txid\":  \"transactionid\",           (string) The transaction id.\n"
        "   \"coinbase\": \"coinbase\",             (string) Coinbase transaction, true or false\n"
        "   \"category\": \"category\",             (string) orphan (coinbase), immature (coinbase), generate (coinbase), regular\n"
        "   \"blockhash\": \"hashvalue\",           (string) The block hash containing the transaction\n"
        "   \"blockindex\": n,                    (numeric) The block index containing the transaction\n"
        "   \"blocktime\": n,                     (numeric) The block time in seconds of the block containing the transaction, 0 for unconfirmed transactions\n"
        "   \"expiryheight\": n,                  (numeric) The expiry height of the transaction\n"
        "   \"confirmations\": n,                 (numeric) The number of confirmations for the transaction\n"
        "   \"time\": xxx,                        (numeric) The transaction time in seconds of the transaction\n"
        "   \"size\": xxx,                        (numeric) The transaction size\n"
        "   \"walletconflicts\": [conflicts],     An array of wallet conflicts\n"
        "   \"sends\": {                          A list of outputs of where funds were sent to in the transaction,\n"
        "                                         only available if the transaction has valid sends (inputs) belonging to the wallet\n"
        "       \"transparentSends\": [{              An Array of spends (outputs) for transparent addresses of the receipient\n"
        "           \"address\": \"dragonxaddress\",       (string) DragonX transparent address (t-address)\n"
        "           \"scriptPubKey\": \"script\",         (string) Script for the DragonX transparent address (t-address)\n"
        "           \"amount\": x.xxxx,                 (numeric) Value of output being sent " + CURRENCY_UNIT + ", negative for sends\n"
        "           \"vout\": : n,                      (numeric) the vout value\n"
        "       }],\n"
        "       \"saplingSends\": [{                 An Array of spends (outputs) for sapling addresses\n"
        "           \"address\": \"dragonxaddress\",       (string) DragonX sapling address (z-address) of the receipient\n"
        "           \"amount\": x.xxxx,                 (numeric) Value of output being sent" + CURRENCY_UNIT + ", negative for sends\n"
        "           \"memo\": xxxxx,            (string) hexademical string representation of memo field\n"
        "           \"memoStr\" : \"memo\",             (string) Only returned if memo contains valid UTF-8 text.\n"
        "           \"shieldedOutputIndex\": n,         (numeric) The index of the ShieledOutput\n"
        "           \"change\": true/false              (string) The note is change. This can result from sending funds\n"
        "                                                        to the same address they came from, or incomplete useage\n"
        "                                                        resulting in the remainder of the note used being sent back to the\n"
        "                                                        same z-address.\n"
        "       }],\n"
        "       \"missingSaplingOVK\": true/false    (string) True if the sapling outputs are not decryptable\n"
        "   }\n"
        "\nExamples:\n"
        + HelpExampleCli("z_listsentbyaddress", "t1KzZ5n2TPEGYXTZ3WYGL1AYEumEQaRoHaL")
        + HelpExampleRpc("z_listsentbyaddress", "t1KzZ5n2TPEGYXTZ3WYGL1AYEumEQaRoHaL")
    );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    UniValue ret(UniValue::VARR);

    //param values`
    int64_t nMinConfirms = 0;
    int64_t nFilterType = 0;
    int64_t nFilter = 9999999;
    int64_t nCount = 9999999;

    if (params.size() >= 2)
      nMinConfirms = params[1].get_int64();

    if (params.size() >= 4) {
      nFilterType = params[2].get_int64();
      nFilter = params[3].get_int64();
    }

    if (params.size() == 5) {
      nCount = params[4].get_int64();
    }

    if (nMinConfirms < 0)
      throw runtime_error("Minimum confimations must be greater that 0");

    if (nFilterType < 0 || nFilterType > 2)
        throw runtime_error("Filter type must be 0, 1 or 2.");

    if (nFilter < 0)
        throw runtime_error("Filter must be greater that 0.");

    //Created Ordered Transaction Map
    map<int64_t,CWalletTx> orderedTxs;
    for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it) {
      const CWalletTx& wtx = (*it).second;
      orderedTxs.insert(std::pair<int64_t,CWalletTx>(wtx.nOrderPos, wtx));
    }


    uint64_t t = GetTime();
    //Reverse Iterate thru transactions
    for (map<int64_t,CWalletTx>::reverse_iterator it = orderedTxs.rbegin(); it != orderedTxs.rend(); ++it) {
      const CWalletTx& wtx = (*it).second;

      if (!CheckFinalTx(wtx))
          continue;

      if (wtx.GetDepthInMainChain() < 0)
          continue;

      if (wtx.mapSaplingNoteData.size() == 0 && !wtx.IsTrusted())
          continue;

      //Excude transactions with less confirmations than required
      if (wtx.GetDepthInMainChain() < nMinConfirms)
          continue;

      //Exclude Transactions older that max days old
      if (wtx.GetDepthInMainChain() > 0 && nFilterType == 1 && mapBlockIndex[wtx.hashBlock]->GetBlockTime() < (t - (nFilter * 60 * 60 * 24)))
          continue;

      //Exclude transactions with greater than max confirmations
      if (nFilterType == 2 && wtx.GetDepthInMainChain() > nFilter)
          continue;

      zsWalletTxJSON(wtx, ret, "*", false, 0);


      if (ret.size() >= nCount) break;
    }

    vector<UniValue> arrTmp = ret.getValues();

    std::reverse(arrTmp.begin(), arrTmp.end()); // Return oldest to newest

    ret.clear();
    ret.setArray();
    ret.push_backV(arrTmp);

    return ret;
}

UniValue z_getstats(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 1 || params.size() > 2)
        throw runtime_error(
            "z_getstats\n"
            "\nReturns statistics about ztxs in block height or block height range\n"
            "\nArguments:\n"
            "1. \"height\"    (number, required) The block height\n"
            "1. \"end_height\"    (number, optional) The ending block height\n"
            "\nResult:\n"
            "\njson\n"
            "\nExamples:\n"
            + HelpExampleCli("z_getstats 123", "456")
            + HelpExampleRpc("z_getstats 123", "456")
         );

    LOCK2(cs_main, pwalletMain->cs_wallet);
    std::string strHeight = params[0].get_str();
    int nHeight = -1;
    try {
        nHeight = std::stoi(strHeight);
    } catch (const std::exception &e) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid block height parameter");
    }

    if (nHeight < 0 || nHeight > chainActive.Height()) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Block height out of range");
    }
    auto strHash = chainActive[nHeight]->GetBlockHash().GetHex();
    uint256 hash(uint256S(strHash));

    if (mapBlockIndex.count(hash) == 0)
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");

    CBlock block;
    CBlockIndex* pblockindex = mapBlockIndex[hash];

    if (fHavePruned && !(pblockindex->nStatus & BLOCK_HAVE_DATA) && pblockindex->nTx > 0)
        throw JSONRPCError(RPC_INTERNAL_ERROR, "Block not available (pruned data)");

    if(!ReadBlockFromDisk(block, pblockindex,1))
        throw JSONRPCError(RPC_INTERNAL_ERROR, "Can't read block from disk");

    int total_ztxs = 0, total_zins = 0, total_zouts = 0;
    int total_ztxs_10_or_more_zins = 0, total_ztxs_10_or_more_zouts = 0;
    int total_ztxs_25_or_more_zins = 0, total_ztxs_25_or_more_zouts = 0;
    int total_ztxs_50_or_more_zins = 0, total_ztxs_50_or_more_zouts = 0;
    int total_ztxs_100_or_more_zins = 0, total_ztxs_100_or_more_zouts = 0;
    int largest_zins = 0, largest_zouts = 0;
    std::string largest_zins_txid = "", largest_zouts_txid = "";
    UniValue ret(UniValue::VOBJ);
    ret.pushKV("start_height", nHeight);

    // given a single block height, we calculate stats for that height
    if (params.size() == 1) {
        BOOST_FOREACH(const CTransaction&tx, block.vtx)
        {
            int num_zins, num_zouts = 0;
            // ignore coinbase txs which have no zins or zouts
            if(!tx.IsCoinBase()) {
                num_zouts = tx.vShieldedOutput.size();
                num_zins  = tx.vShieldedSpend.size();
                // tx must have some zins and zouts to count towards our stats,
                // which ignores shielding coinbase txs, which have only transparent inputs.
                // This mostly will only count "z2z" txs but also counts (z,t)=>z and z=>(z,t)
                // which are possible but unlikely, since RPCs cannot currently create (z,t)=>z txs
                // and z=>(z,t) are disallowed when ac_private=1
                if(num_zins > 0 && num_zouts > 0) {
                    total_ztxs++;
                    total_zins  += num_zins;
                    total_zouts += num_zouts;
                    if (num_zins > largest_zins) {
                        largest_zins = num_zins;
                        largest_zins_txid = tx.GetHash().ToString();
                    }
                    if (num_zouts > largest_zouts) {
                        largest_zouts = num_zouts;
                        largest_zouts_txid = tx.GetHash().ToString();
                    }
                    if (num_zins >= 10) {
                        total_ztxs_10_or_more_zins++;
                        if (num_zins >= 25) {
                            total_ztxs_25_or_more_zins++;
                            if (num_zins >= 50) {
                                total_ztxs_50_or_more_zins++;
                                if (num_zins >= 100) {
                                    total_ztxs_100_or_more_zins++;
                                }
                            }
                        }
                    }
                    if (num_zouts >= 10) {
                        total_ztxs_10_or_more_zouts++;
                        if (num_zouts >= 25) {
                            total_ztxs_25_or_more_zouts++;
                            if (num_zouts >= 50) {
                                total_ztxs_50_or_more_zouts++;
                                if (num_zouts >= 100) {
                                    total_ztxs_100_or_more_zouts++;
                                }
                            }
                        }
                    }


                }
            }
        }
    } else {
        // given two blocks, we calculate stats for that range
        std::string strHeight2 = params[1].get_str();
        int nHeight2 = -1;
        try {
            nHeight2 = std::stoi(strHeight2);
        } catch (const std::exception &e) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid ending block height parameter");
        }

        if (nHeight2 <= nHeight) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Ending block height must be larger than starting height");
        }

        if (nHeight2 < 0 || nHeight2 > chainActive.Height()) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Ending block height out of range");
        }

        ret.pushKV("end_height", nHeight2);

        // get the stats for every block in the range
        for(int currentHeight = nHeight; currentHeight <= nHeight2; currentHeight++) {
            auto strHash = chainActive[currentHeight]->GetBlockHash().GetHex();
            uint256 hash(uint256S(strHash));

            if (mapBlockIndex.count(hash) == 0)
                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");

            CBlock block;
            CBlockIndex* pblockindex = mapBlockIndex[hash];

            if (fHavePruned && !(pblockindex->nStatus & BLOCK_HAVE_DATA) && pblockindex->nTx > 0)
                throw JSONRPCError(RPC_INTERNAL_ERROR, "Block not available (pruned data)");

            if(!ReadBlockFromDisk(block, pblockindex,1))
                throw JSONRPCError(RPC_INTERNAL_ERROR, "Can't read block from disk");

            BOOST_FOREACH(const CTransaction&tx, block.vtx)
            {
                int num_zins, num_zouts = 0;
                // ignore coinbase txs which have no zins or zouts
                if(!tx.IsCoinBase()) {
                    num_zouts = tx.vShieldedOutput.size();
                    num_zins  = tx.vShieldedSpend.size();
                    if(num_zins > 0 && num_zouts > 0) {
                        total_ztxs++;
                        total_zins  += num_zins;
                        total_zouts += num_zouts;
                    }
                    if (num_zins > largest_zins) {
                        largest_zins = num_zins;
                        largest_zins_txid = tx.GetHash().ToString();
                    }
                    if (num_zouts > largest_zouts) {
                        largest_zouts = num_zouts;
                        largest_zouts_txid = tx.GetHash().ToString();
                    }
                    if (num_zins >= 10) {
                        total_ztxs_10_or_more_zins++;
                        if (num_zins >= 25) {
                            total_ztxs_25_or_more_zins++;
                            if (num_zins >= 50) {
                                total_ztxs_50_or_more_zins++;
                                if (num_zins >= 100) {
                                    total_ztxs_100_or_more_zins++;
                                }
                            }
                        }
                    }
                    if (num_zouts >= 10) {
                        total_ztxs_10_or_more_zouts++;
                        if (num_zouts >= 25) {
                            total_ztxs_25_or_more_zouts++;
                            if (num_zouts >= 50) {
                                total_ztxs_50_or_more_zouts++;
                                if (num_zouts >= 100) {
                                    total_ztxs_100_or_more_zouts++;
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    double avg_zins  = total_ztxs > 0 ? (double) total_zins  / total_ztxs : 0.0;
    double avg_zouts = total_ztxs > 0 ? (double) total_zouts / total_ztxs : 0.0;
    ret.pushKV("total_ztxs", total_ztxs);
    ret.pushKV("total_zins", total_zins);
    ret.pushKV("total_zouts", total_zouts);
    ret.pushKV("total_ztxs_10_or_more_zins", total_ztxs_10_or_more_zins);
    ret.pushKV("total_ztxs_25_or_more_zins", total_ztxs_25_or_more_zins);
    ret.pushKV("total_ztxs_50_or_more_zins", total_ztxs_50_or_more_zins);
    ret.pushKV("total_ztxs_100_or_more_zins", total_ztxs_100_or_more_zins);
    ret.pushKV("total_ztxs_10_or_more_zouts", total_ztxs_10_or_more_zouts);
    ret.pushKV("total_ztxs_25_or_more_zouts", total_ztxs_25_or_more_zouts);
    ret.pushKV("total_ztxs_50_or_more_zouts", total_ztxs_50_or_more_zouts);
    ret.pushKV("total_ztxs_100_or_more_zouts", total_ztxs_100_or_more_zouts);
    ret.pushKV("avg_zins", avg_zins);
    ret.pushKV("avg_zouts", avg_zouts);
    ret.pushKV("largest_zins", largest_zins);
    ret.pushKV("largest_zins_txid", largest_zins_txid);
    ret.pushKV("largest_zouts", largest_zouts);
    ret.pushKV("largest_zouts_txid", largest_zouts_txid);
    return ret;
}

UniValue z_anonsetblockdelta(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 1 || params.size() > 2)
        throw runtime_error(
            "z_anonsetblockdelta\n"
            "\nReturns delta (difference) in the anonset for a given block height. A delta > 0 increases the anonset,\n"
            "\na delta < 0 reduces the anonset and a delta=0 leaves the anonset the same. Given a single block height\n"
            "\nwe calculate the delta for that block. Given two block heights, we calculate the delta for that range of blocks.\n"
            "\nArguments:\n"
            "1. \"height\"    (number, required) The block height\n"
            "1. \"end_height\"    (number, optional) The ending block height\n"
            "\nResult:\n"
            "\"delta\"          (integer) An integer number.\n"
            "\nExamples:\n"
            + HelpExampleCli("z_anonsetblockdelta 123", "456")
            + HelpExampleRpc("z_anonsetblockdelta 123", "456")
         );

    LOCK2(cs_main, pwalletMain->cs_wallet);
    std::string strHeight = params[0].get_str();
    int nHeight = -1;
    try {
        nHeight = std::stoi(strHeight);
    } catch (const std::exception &e) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid block height parameter");
    }

    if (nHeight < 0 || nHeight > chainActive.Height()) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Block height out of range");
    }
    auto strHash = chainActive[nHeight]->GetBlockHash().GetHex();
    uint256 hash(uint256S(strHash));

    if (mapBlockIndex.count(hash) == 0)
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");

    CBlock block;
    CBlockIndex* pblockindex = mapBlockIndex[hash];

    if (fHavePruned && !(pblockindex->nStatus & BLOCK_HAVE_DATA) && pblockindex->nTx > 0)
        throw JSONRPCError(RPC_INTERNAL_ERROR, "Block not available (pruned data)");

    if(!ReadBlockFromDisk(block, pblockindex,1))
        throw JSONRPCError(RPC_INTERNAL_ERROR, "Can't read block from disk");

    int delta = 0;

    // given a single block height, we calculate delta for that height
    if (params.size() == 1) {
        BOOST_FOREACH(const CTransaction&tx, block.vtx)
        {
            // delta = shielded outputs - shielded inputs
            if(!tx.IsCoinBase()) {
                delta += tx.vShieldedOutput.size() - tx.vShieldedSpend.size();
            }
        }
    } else {
        // given two blocks, we calculate delta for that range
        std::string strHeight2 = params[1].get_str();
        int nHeight2 = -1;
        try {
            nHeight2 = std::stoi(strHeight2);
        } catch (const std::exception &e) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid ending block height parameter");
        }

        if (nHeight2 <= nHeight) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Ending block height must be larger than starting height");
        }

        if (nHeight2 < 0 || nHeight2 > chainActive.Height()) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Ending block height out of range");
        }

        // get the delta for every block in the range
        for(int currentHeight = nHeight; currentHeight <= nHeight2; currentHeight++) {
            auto strHash = chainActive[currentHeight]->GetBlockHash().GetHex();
            uint256 hash(uint256S(strHash));

            if (mapBlockIndex.count(hash) == 0)
                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");

            CBlock block;
            CBlockIndex* pblockindex = mapBlockIndex[hash];

            if (fHavePruned && !(pblockindex->nStatus & BLOCK_HAVE_DATA) && pblockindex->nTx > 0)
                throw JSONRPCError(RPC_INTERNAL_ERROR, "Block not available (pruned data)");

            if(!ReadBlockFromDisk(block, pblockindex,1))
                throw JSONRPCError(RPC_INTERNAL_ERROR, "Can't read block from disk");

            BOOST_FOREACH(const CTransaction&tx, block.vtx)
            {
                // delta = shielded outputs - shielded inputs
                if(!tx.IsCoinBase()) {
                    delta += tx.vShieldedOutput.size() - tx.vShieldedSpend.size();
                }
            }
        }
    }
    return delta;
}

UniValue z_anonsettxdelta(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() != 1)
        throw runtime_error(
            "z_anonsettxdelta\n"
            "\nReturns delta (difference) in the anonset for a given txid. A delta > 0 increases the anonset,\n"
            "\na delta < 0 reduces the anonset and a delta=0 leaves the anonset the same.\n"
            "\nArguments:\n"
            "1. \"txid\"    (string, required) The transaction id\n"
            "\nResult:\n"
            "\"delta\"          (integer) An integer number.\n"
            "\nExamples:\n"
            + HelpExampleCli("z_anonsettxdelta txid", "123")
            + HelpExampleRpc("z_anonsettxdelta txid", "123")
         );


    uint256 txid,hashBlock;
    CTransaction tx;
    txid.SetHex(params[0].get_str());

    LOCK(cs_main);
    if (!GetTransaction(txid, tx, hashBlock, true))
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "No information available about transaction");

    // delta = shielded outputs - shielded inputs
    int delta = tx.vShieldedOutput.size() - tx.vShieldedSpend.size();
    return delta;
}

UniValue z_getbalances(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 1)
        throw runtime_error(
            "z_getbalances\n"
            "\nReturns array of addresses with their unspent shielded balances.\n"
            "Optionally filter to only include addresses with at least minbal DRAGONX.\n"
            "Results are an array of Objects, each of which has:\n"
            "{address, balance}\n"
            "\nArguments:\n"
            "1. minbal           (numeric, optional, default=0) The minimum balance addresses must contain\n"
            "\nResult\n"
            "[                             (array of json object)\n"
            "  {\n"
            "    \"address\" : \"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\",      (string) the address \n"
            "    \"balance\" : 69.420          (numeric)  the balance\n"
            "  }\n"
            "  ,...\n"
            "]\n"

            "\nExamples\n"
            + HelpExampleCli("z_getbalances", "")
            + HelpExampleCli("z_getbalances", "0.01")
            + HelpExampleRpc("z_getbalances", "")
            + HelpExampleRpc("z_getbalances", "0.42069")
        );

    //RPCTypeCheck(params, boost::assign::list_of(UniValue::VNUM));

    LOCK2(cs_main, pwalletMain->cs_wallet);

    // ignore amount=0 zaddrs by default
    CAmount nMinBal = 1;  // puposhis
    if (params.size() > 0)
      nMinBal = AmountFromValue(params[0]);

    std::set<libzcash::PaymentAddress> zaddrs = {};
    std::set<libzcash::SaplingPaymentAddress> saplingzaddrs = {};
    pwalletMain->GetSaplingPaymentAddresses(saplingzaddrs);

    zaddrs.insert(saplingzaddrs.begin(), saplingzaddrs.end());

    int nMinDepth = 1;
    std::vector<SaplingNoteEntry> saplingEntries;
    pwalletMain->GetFilteredNotes(saplingEntries, zaddrs, nMinDepth);

    std::map<std::string, CAmount> mapBalances;
    for (auto & entry : saplingEntries) {
        auto zaddr       = EncodePaymentAddress(entry.address);
        CAmount nBalance = CAmount(entry.note.value());
        if(mapBalances.count(zaddr)) {
            mapBalances[zaddr] += nBalance;
        } else {
            mapBalances[zaddr] = nBalance;
        }
    }
    std::vector<std::pair<std::string,CAmount>> vec;
    std::copy(mapBalances.begin(), mapBalances.end(), std::back_inserter<std::vector<std::pair<std::string,CAmount>>>(vec));

    std::sort(vec.begin(), vec.end(), [](const std::pair<std::string, CAmount> &l, const std::pair<std::string,CAmount> &r)
            {
                if (l.second != r.second) {
                    return l.second > r.second;
                }
                return l.first > r.first;
            });

    UniValue results(UniValue::VARR);
    for (auto & entry : vec) {
        UniValue obj(UniValue::VOBJ);
        obj.push_back(Pair("address", entry.first));
        auto balance = (double) entry.second / (uint64_t) 100000000L;
        obj.push_back(Pair("balance", balance));
        if(entry.second >= nMinBal) {
            results.push_back(obj);
        }
    }

    return results;
}

UniValue z_listunspent(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 4)
        throw runtime_error(
            "z_listunspent ( minconf maxconf includeWatchonly [\"zaddr\",...] )\n"
            "\nReturns array of unspent shielded notes with between minconf and maxconf (inclusive) confirmations.\n"
            "Optionally filter to only include notes sent to specified addresses.\n"
            "When minconf is 0, unspent notes with zero confirmations are returned, even though they are not immediately spendable.\n"
            "Results are an array of Objects, each of which has:\n"
            "{txid, outindex, confirmations, address, amount, memo}\n"
            "\nArguments:\n"
            "1. minconf          (numeric, optional, default=1) The minimum confirmations to filter\n"
            "2. maxconf          (numeric, optional, default=9999999) The maximum confirmations to filter\n"
            "3. includeWatchonly (bool, optional, default=false) Also include watchonly addresses (see 'z_importviewingkey')\n"
            "4. \"addresses\"      (string) A json array of zaddrs to filter on.  Duplicate addresses not allowed.\n"
            "    [\n"
            "      \"address\"     (string) zaddr\n"
            "      ,...\n"
            "    ]\n"
            "\nResult\n"
            "[                             (array of json object)\n"
            "  {\n"
            "    \"txid\" : \"txid\",          (string) the transaction id \n"
            "    \"outindex\" (sapling) : n          (numeric) the output index\n"
            "    \"confirmations\" : n       (numeric) the number of confirmations\n"
            "    \"spendable\" : true|false  (boolean) true if note can be spent by wallet, false if note has zero confirmations, false if address is watchonly\n"
            "    \"locked\" : true|false  (boolean) true if note is part of an in-process async operation to spend it, such as z_mergetoaddress/z_sendmany/etc\n"
            "    \"address\" : \"address\",    (string) the shielded address\n"
            "    \"amount\": xxxxx,          (numeric) the amount of value in the note\n"
            "    \"memo\": xxxxx,            (string) hexademical string representation of memo field\n"
            "    \"memoStr\" : \"memo\",     (string) Only returned if memo contains valid UTF-8 text.\n"
            "    \"change\": true|false,     (boolean) true if the address that received the note is also one of the sending addresses\n"
            "  }\n"
            "  ,...\n"
            "]\n"

            "\nExamples\n"
            + HelpExampleCli("z_listunspent", "")
            + HelpExampleCli("z_listunspent", "6 9999999 false \"[\\\"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\\\",\\\"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\\\"]\"")
            + HelpExampleRpc("z_listunspent", "6,9999999,false,[\"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\",\"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\"]")
        );

    RPCTypeCheck(params, boost::assign::list_of(UniValue::VNUM)(UniValue::VNUM)(UniValue::VBOOL)(UniValue::VARR));

    int nMinDepth = 1;
    if (params.size() > 0) {
        nMinDepth = params[0].get_int();
    }
    if (nMinDepth < 0) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Minimum number of confirmations cannot be less than 0");
    }

    int nMaxDepth = 9999999;
    if (params.size() > 1) {
        nMaxDepth = params[1].get_int();
    }
    if (nMaxDepth < nMinDepth) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Maximum number of confirmations must be greater or equal to the minimum number of confirmations");
    }

    std::set<libzcash::PaymentAddress> zaddrs = {};

    bool fIncludeWatchonly = false;
    if (params.size() > 2) {
        fIncludeWatchonly = params[2].get_bool();
    }

    LOCK2(cs_main, pwalletMain->cs_wallet);

    // User has supplied zaddrs to filter on
    if (params.size() > 3) {
        UniValue addresses = params[3].get_array();
        if (addresses.size()==0)
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, addresses array is empty.");

        // Keep track of addresses to spot duplicates
        set<std::string> setAddress;

        // Sources
        for (const UniValue& o : addresses.getValues()) {
            if (!o.isStr()) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected string");
            }
            string address = o.get_str();
            auto zaddr = DecodePaymentAddress(address);
            if (!IsValidPaymentAddress(zaddr)) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, address is not a valid DragonX zaddr: ") + address);
            }
            auto hasSpendingKey = boost::apply_visitor(HaveSpendingKeyForPaymentAddress(pwalletMain), zaddr);
            if (!fIncludeWatchonly && !hasSpendingKey) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, spending key for address does not belong to wallet: ") + address);
            }
            zaddrs.insert(zaddr);

            if (setAddress.count(address)) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, duplicated address: ") + address);
            }
            setAddress.insert(address);
        }
    } else {
        // User did not provide zaddrs, so use default i.e. all addresses
        std::set<libzcash::SaplingPaymentAddress> saplingzaddrs = {};
        pwalletMain->GetSaplingPaymentAddresses(saplingzaddrs);

        zaddrs.insert(saplingzaddrs.begin(), saplingzaddrs.end());
    }

    UniValue results(UniValue::VARR);

    if (zaddrs.size() > 0) {
        std::vector<SaplingNoteEntry> saplingEntries;
        pwalletMain->GetFilteredNotes(saplingEntries, zaddrs, nMinDepth, nMaxDepth, true, !fIncludeWatchonly, false);
        std::set<std::pair<PaymentAddress, uint256>> nullifierSet = pwalletMain->GetNullifiersForAddresses(zaddrs);

        for (auto & entry : saplingEntries) {
            UniValue obj(UniValue::VOBJ);

            int nHeight   = tx_height(entry.op.hash);
            int dpowconfs = hush_dpowconfs(nHeight, entry.confirmations);

            // Only return notarized results when minconf>1
            if (nMinDepth > 1 && dpowconfs == 1)
                continue;

            obj.push_back(Pair("txid", entry.op.hash.ToString()));
            obj.push_back(Pair("outindex", (int)entry.op.n));
            obj.push_back(Pair("confirmations", dpowconfs));
            obj.push_back(Pair("rawconfirmations", entry.confirmations));
            libzcash::SaplingIncomingViewingKey ivk;
            libzcash::SaplingFullViewingKey fvk;
            pwalletMain->GetSaplingIncomingViewingKey(boost::get<libzcash::SaplingPaymentAddress>(entry.address), ivk);
            pwalletMain->GetSaplingFullViewingKey(ivk, fvk);
            const bool hasSaplingSpendingKey = pwalletMain->HaveSaplingSpendingKey(fvk);
            obj.push_back(Pair("spendable", hasSaplingSpendingKey));

            const bool isLocked = pwalletMain->IsLockedNote(entry.op);
            obj.push_back(Pair("locked", isLocked));

            obj.push_back(Pair("address", EncodePaymentAddress(entry.address)));
            obj.push_back(Pair("amount", ValueFromAmount(CAmount(entry.note.value())))); // note.value() is equivalent to plaintext.value()
            obj.push_back(Pair("memo", HexStr(entry.memo)));
            auto memo = entry.memo;
            if (memo[0] <= 0xf4) {
                auto end = std::find_if(memo.rbegin(), memo.rend(), [](unsigned char v) { return v != 0; });
                std::string memoStr(memo.begin(), end.base());
                if (utf8::is_valid(memoStr)) {
                    obj.push_back(Pair("memoStr", memoStr));
                }
            }
            if (hasSaplingSpendingKey) {
                obj.push_back(Pair("change", pwalletMain->IsNoteSaplingChange(nullifierSet, entry.address, entry.op)));
            }
            results.push_back(obj);
        }
    }

    return results;
}

UniValue fundrawtransaction(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() != 1)
        throw runtime_error(
                            "fundrawtransaction \"hexstring\"\n"
                            "\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 one change output to the outputs.\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 signrawtransaction for that.\n"
                            "\nArguments:\n"
                            "1. \"hexstring\"    (string, required) The hex string of the raw transaction\n"
                            "\nResult:\n"
                            "{\n"
                            "  \"hex\":       \"value\", (string)  The resulting raw transaction (hex-encoded string)\n"
                            "  \"fee\":       n,         (numeric) The fee added to the transaction\n"
                            "  \"changepos\": n          (numeric) The position of the added change output, or -1\n"
                            "}\n"
                            "\"hex\"             \n"
                            "\nExamples:\n"
                            "\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\"")
                            );

    RPCTypeCheck(params, boost::assign::list_of(UniValue::VSTR));

    // parse hex string from parameter
    CTransaction origTx;
    if (!DecodeHexTx(origTx, params[0].get_str()))
        throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");

    CMutableTransaction tx(origTx);
    CAmount nFee;
    string strFailReason;
    int nChangePos = -1;
    if(!pwalletMain->FundTransaction(tx, nFee, nChangePos, strFailReason))
        throw JSONRPCError(RPC_INTERNAL_ERROR, strFailReason);

    UniValue result(UniValue::VOBJ);
    result.push_back(Pair("hex", EncodeHexTx(tx)));
    result.push_back(Pair("changepos", nChangePos));
    result.push_back(Pair("fee", ValueFromAmount(nFee)));

    return result;
}

UniValue z_getnewaddress(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    std::string defaultType = ADDR_TYPE_SAPLING;

    if (fHelp || params.size() > 1)
        throw runtime_error(
            "z_getnewaddress ( type )\n"
            "\nReturns a new shielded address for receiving payments.\n"
            "\nWith no arguments, returns a Sapling address (zaddr).\n"
            "\nBe very careful with 'amnesia' address type, the address is not stored in wallet.dat and if you send funds to it THEY WILL BE LOST FOREVER\n"
            "\nArguments:\n"
            "1. \"type\"         (string, optional, default=\"" + defaultType + "\") The type of address. Either "+ ADDR_TYPE_SAPLING + " or " + ADDR_TYPE_AMNESIA + " .\n"
            "\nResult:\n"
            "\"" + strprintf("%s",hush_chainname()) + "_address\"    (string) The new shielded address.\n"
            "\nExamples:\n"
            + HelpExampleCli("z_getnewaddress", "")
            + HelpExampleCli("z_getnewaddress", ADDR_TYPE_SAPLING)
            + HelpExampleCli("z_getnewaddress", ADDR_TYPE_AMNESIA)
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    EnsureWalletIsUnlocked();

    auto addrType = defaultType;
    if (params.size() > 0) {
        addrType = params[0].get_str();
    }
    if (addrType == ADDR_TYPE_SAPLING) {
        return EncodePaymentAddress(pwalletMain->GenerateNewSaplingZKey());
    } else if (addrType == ADDR_TYPE_AMNESIA) {
        auto zaddr = randomSietchZaddr();
        if(fZdebug) {
            fprintf(stderr,"%s: Sietch zaddr=%s created, not stored in wallet.dat!\n", __FUNCTION__, zaddr.c_str() );
        }
        return zaddr;
    } else {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid address type! Try " + ADDR_TYPE_SAPLING + " or " + ADDR_TYPE_AMNESIA);
    }
}

UniValue z_listnullifiers(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 0)
        throw runtime_error(
            "z_listnullifiers\n"
            "\nReturns the list of Sapling nullifiers.\n"
            "\nResult:\n"
            "[                     (json array of string)\n"
            "  \"nullifier\"       (string) a Sapling nullifer\n"
            "  ,...\n"
            "]\n"
            "\nExamples:\n"
            + HelpExampleCli("z_listnullifiers", "")
            + HelpExampleRpc("z_listnullifiers", "")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);
    UniValue ret(UniValue::VARR);
    //global set is very large!
    CNullifiersMap nullifiers = pcoinsTip->getNullifiers();
    for (auto nullifier : nullifiers) {
        ret.push_back(nullifier.first.GetHex());
    }
    return ret;
}

UniValue z_listaddresses(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 1)
        throw runtime_error(
            "z_listaddresses ( includeWatchonly )\n"
            "\nReturns the list of Sapling shielded addresses belonging to the wallet.\n"
            "\nArguments:\n"
            "1. includeWatchonly (bool, optional, default=false) Also include watchonly addresses (see 'z_importviewingkey')\n"
            "\nResult:\n"
            "[                     (json array of string)\n"
            "  \"zaddr\"           (string) a zaddr belonging to the wallet\n"
            "  ,...\n"
            "]\n"
            "\nExamples:\n"
            + HelpExampleCli("z_listaddresses", "")
            + HelpExampleRpc("z_listaddresses", "")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    bool fIncludeWatchonly = false;
    if (params.size() > 0) {
        fIncludeWatchonly = params[0].get_bool();
    }

    UniValue ret(UniValue::VARR);
    {
        std::set<libzcash::SaplingPaymentAddress> addresses;
        pwalletMain->GetSaplingPaymentAddresses(addresses);
        libzcash::SaplingIncomingViewingKey ivk;
        libzcash::SaplingFullViewingKey fvk;
        for (auto addr : addresses) {
            if (fIncludeWatchonly || (
                pwalletMain->GetSaplingIncomingViewingKey(addr, ivk) &&
                pwalletMain->GetSaplingFullViewingKey(ivk, fvk) &&
                pwalletMain->HaveSaplingSpendingKey(fvk)
            )) {
                ret.push_back(EncodePaymentAddress(addr));
            }
        }
    }
    return ret;
}

CAmount getBalanceTaddr(std::string transparentAddress, int minDepth=1, bool ignoreUnspendable=true) {
    std::set<CTxDestination> destinations;
    vector<COutput> vecOutputs;
    CAmount balance = 0;

    if (transparentAddress.length() > 0) {
        CTxDestination taddr = DecodeDestination(transparentAddress);
        if (!IsValidDestination(taddr)) {
            throw std::runtime_error("invalid transparent address");
        }
        destinations.insert(taddr);
    }

    LOCK2(cs_main, pwalletMain->cs_wallet);

    pwalletMain->AvailableCoins(vecOutputs, false, NULL, true);

    BOOST_FOREACH(const COutput& out, vecOutputs) {
        int nDepth    = out.tx->GetDepthInMainChain();
        if( minDepth > 1 ) {
            int nHeight    = tx_height(out.tx->GetHash());
            int dpowconfs  = hush_dpowconfs(nHeight, nDepth);
            if (dpowconfs < minDepth) {
                continue;
            }
        } else {
            if (out.nDepth < minDepth) {
                continue;
            }
        }

        if (ignoreUnspendable && !out.fSpendable) {
            continue;
        }

        if (destinations.size()) {
            CTxDestination address;
            if (!ExtractDestination(out.tx->vout[out.i].scriptPubKey, address)) {
                continue;
            }

            if (!destinations.count(address)) {
                continue;
            }
        }

        CAmount nValue = out.tx->vout[out.i].nValue;
        balance += nValue;
    }
    return balance;
}


UniValue z_listreceivedbyaddress(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size()==0 || params.size() >2)
        throw runtime_error(
            "z_listreceivedbyaddress \"address\" ( minconf )\n"
            "\nReturn a list of amounts received by a zaddr belonging to the node’s wallet.\n"
            "\nArguments:\n"
            "1. \"address\"      (string) The private address.\n"
            "2. minconf          (numeric, optional, default=1) Only include transactions confirmed at least this many times.\n"
            "\nResult:\n"
            "{\n"
            "  \"txid\": xxxxx,           (string) the transaction id\n"
            "  \"amount\": xxxxx,         (numeric) the amount of value in the note\n"
            "  \"memo\": xxxxx,           (string) hexadecimal string representation of memo field\n"
            "  \"memoStr\" : \"memo\",    (string) Only returned if memo contains valid UTF-8 text.\n"
            "  \"confirmations\" : n,     (numeric) the number of notarized confirmations (dpowconfs)\n"
            "  \"rawconfirmations\" : n,     (numeric) the number of raw confirmations\n"
            "  \"outindex\" (sapling) : n,     (numeric) the output index\n"
            "  \"change\": true|false,    (boolean) true if the address that received the note is also one of the sending addresses\n"
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("z_listreceivedbyaddress", "\"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\"")
            + HelpExampleRpc("z_listreceivedbyaddress", "\"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    int nMinDepth = 1;
    if (params.size() > 1) {
        nMinDepth = params[1].get_int();
    }
    if (nMinDepth < 0) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Minimum number of confirmations cannot be less than 0");
    }

    // Check that the from address is valid.
    auto fromaddress = params[0].get_str();

    auto zaddr = DecodePaymentAddress(fromaddress);
    if (!IsValidPaymentAddress(zaddr)) {
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid zaddr.");
    }

    if (!boost::apply_visitor(PaymentAddressBelongsToWallet(pwalletMain), zaddr) &&
        !boost::apply_visitor(IncomingViewingKeyBelongsToWallet(pwalletMain), zaddr)) {
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "From address does not belong to this node, zaddr spending key or viewing key not found.");
    }

    UniValue result(UniValue::VARR);
    std::vector<SaplingNoteEntry> saplingEntries;
    pwalletMain->GetFilteredNotes(saplingEntries, fromaddress, nMinDepth, false, false);

    std::set<std::pair<PaymentAddress, uint256>> nullifierSet;
    auto hasSpendingKey = boost::apply_visitor(HaveSpendingKeyForPaymentAddress(pwalletMain), zaddr);
    if (hasSpendingKey) {
        nullifierSet = pwalletMain->GetNullifiersForAddresses({zaddr});
    }

    if (boost::get<libzcash::SaplingPaymentAddress>(&zaddr) != nullptr) {
        for (SaplingNoteEntry & entry : saplingEntries) {
            UniValue obj(UniValue::VOBJ);
            int nHeight   = tx_height(entry.op.hash);
            int dpowconfs = hush_dpowconfs(nHeight, entry.confirmations);
            // Only return notarized results when minconf>1
            if (nMinDepth > 1 && dpowconfs == 1)
                continue;

            obj.push_back(Pair("txid", entry.op.hash.ToString()));
            obj.push_back(Pair("amount", ValueFromAmount(CAmount(entry.note.value()))));
            obj.push_back(Pair("memo", HexStr(entry.memo)));
            // give a string representation if valid utf8
            auto memo = entry.memo;
            if (memo[0] <= 0xf4) {
                auto end = std::find_if(memo.rbegin(), memo.rend(), [](unsigned char v) { return v != 0; });
                std::string memoStr(memo.begin(), end.base());
                if (utf8::is_valid(memoStr)) {
                    obj.push_back(Pair("memoStr", memoStr));
                }
            }
            obj.push_back(Pair("outindex", (int)entry.op.n));
            obj.push_back(Pair("rawconfirmations", entry.confirmations));
            auto wtx = pwalletMain->mapWallet.at(entry.op.hash); //.ToString());
            obj.push_back(Pair("time", wtx.GetTxTime()));

            obj.push_back(Pair("confirmations", dpowconfs));
            if (hasSpendingKey) {
              obj.push_back(Pair("change", pwalletMain->IsNoteSaplingChange(nullifierSet, entry.address, entry.op)));
            }
            result.push_back(obj);
        }
    }
    return result;
}

UniValue z_getbalance(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size()==0 || params.size() >2)
        throw runtime_error(
            "z_getbalance \"address\" ( minconf )\n"
            "\nReturns the balance of a taddr or zaddr belonging to the node’s wallet.\n"
            "\nCAUTION: If the wallet has only an incoming viewing key for this address, then spends cannot be"
            "\ndetected, and so the returned balance may be larger than the actual balance.\n"
            "\nArguments:\n"
            "1. \"address\"      (string) The selected address. It may be a transparent or private address.\n"
            "2. minconf          (numeric, optional, default=1) Only include transactions confirmed at least this many times.\n"
            "\nResult:\n"
            "amount              (numeric) The total amount received for this address.\n"
            "\nExamples:\n"
            "\nThe total amount received by address \"myaddress\"\n"
            + HelpExampleCli("z_getbalance", "\"myaddress\"") +
            "\nThe total amount received by address \"myaddress\" at least 5 blocks confirmed\n"
            + HelpExampleCli("z_getbalance", "\"myaddress\" 5") +
            "\nAs a json rpc call\n"
            + HelpExampleRpc("z_getbalance", "\"myaddress\", 5")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    int nMinDepth = 1;
    if (params.size() > 1) {
        nMinDepth = params[1].get_int();
    }
    if (nMinDepth < 0) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Minimum number of confirmations cannot be less than 0");
    }

    // Check that the from address is valid.
    auto fromaddress = params[0].get_str();
    bool fromTaddr = false;
    CTxDestination taddr = DecodeDestination(fromaddress);
    fromTaddr = IsValidDestination(taddr);
    if (!fromTaddr) {
        auto res = DecodePaymentAddress(fromaddress);
        if (!IsValidPaymentAddress(res)) {
            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid from address, should be a taddr or zaddr.");
        }
        if (!boost::apply_visitor(PaymentAddressBelongsToWallet(pwalletMain), res)) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "From address does not belong to this node, spending key or viewing key not found.");
        }
    }

    CAmount nBalance = 0;
    if (fromTaddr) {
        nBalance = getBalanceTaddr(fromaddress, nMinDepth, false);
    } else {
        nBalance = getBalanceZaddr(fromaddress, nMinDepth, false);
    }

    return ValueFromAmount(nBalance);
}

UniValue z_getnotescount(const UniValue& params, bool fHelp,const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 1)
        throw runtime_error(
            "z_getnotescount\n"
            "\nArguments:\n"
            "1. minconf      (numeric, optional, default=1) Only include notes in transactions confirmed at least this many times.\n"
            "\nReturns the number of sapling notes available in the wallet.\n"
            "\nResult:\n"
            "{\n"
            "  \"sapling\"     (numeric) the number of sapling notes in the wallet\n"
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("z_getnotescount", "0")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    int nMinDepth = 1;
    if (params.size() > 0)
        nMinDepth = params[0].get_int();

    int sapling = 0;
    for (auto& wtx : pwalletMain->mapWallet) {
        if (wtx.second.GetDepthInMainChain() >= nMinDepth) {
            sapling += wtx.second.mapSaplingNoteData.size();
        }
    }
    UniValue ret(UniValue::VOBJ);
    ret.push_back(Pair("sapling", sapling));

    return ret;
}

UniValue z_gettotalbalance(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 2)
        throw runtime_error(
            "z_gettotalbalance ( minconf includeWatchonly )\n"
            "\nReturn the total value of funds stored in the node’s wallet.\n"
            "\nCAUTION: If the wallet contains any addresses for which it only has incoming viewing keys,"
            "\nthe returned private balance may be larger than the actual balance, because spends cannot"
            "\nbe detected with incoming viewing keys.\n"
            "\nArguments:\n"
            "1. minconf          (numeric, optional, default=1) Only include private and transparent transactions confirmed at least this many times.\n"
            "2. includeWatchonly (bool, optional, default=false) Also include balance in watchonly addresses (see 'importaddress' and 'z_importviewingkey')\n"
            "\nResult:\n"
            "{\n"
            "  \"transparent\": xxxxx,     (numeric) the total balance of transparent funds\n"
            "  \"private\": xxxxx,         (numeric) the total balance of shielded funds\n"
            "  \"private\": xxxxx,         (numeric) the total balance of private funds\n"
            "  \"total\": xxxxx,           (numeric) the total balance of both transparent and private funds\n"
            "}\n"
            "\nExamples:\n"
            "\nThe total amount in the wallet\n"
            + HelpExampleCli("z_gettotalbalance", "") +
            "\nThe total amount in the wallet at least 5 blocks confirmed\n"
            + HelpExampleCli("z_gettotalbalance", "5") +
            "\nAs a json rpc call\n"
            + HelpExampleRpc("z_gettotalbalance", "5")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    int nMinDepth = 1;
    if (params.size() > 0) {
        nMinDepth = params[0].get_int();
    }
    if (nMinDepth < 0) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Minimum number of confirmations cannot be less than 0");
    }

    bool fIncludeWatchonly = false;
    if (params.size() > 1) {
        fIncludeWatchonly = params[1].get_bool();
    }

    // getbalance and "getbalance * 1 true" should return the same number
    // but they don't because wtx.GetAmounts() does not handle tx where there are no outputs
    // pwalletMain->GetBalance() does not accept min depth parameter
    // so we use our own method to get balance of utxos
    CAmount nBalance        = getBalanceTaddr("", nMinDepth, !fIncludeWatchonly);
    CAmount nPrivateBalance = getBalanceZaddr("", nMinDepth, !fIncludeWatchonly);
    CAmount nTotalBalance   = nBalance + nPrivateBalance;
    UniValue result(UniValue::VOBJ);
    result.push_back(Pair("transparent", FormatMoney(nBalance)));
    result.push_back(Pair("private", FormatMoney(nPrivateBalance)));
    result.push_back(Pair("total", FormatMoney(nTotalBalance)));
    return result;
}

UniValue z_viewtransaction(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() != 1)
        throw runtime_error(
            "z_viewtransaction \"txid\"\n"
            "\nGet detailed shielded information about in-wallet transaction <txid>\n"
            "\nArguments:\n"
            "1. \"txid\"    (string, required) The transaction id\n"
            "\nResult:\n"
            "{\n"
            "  \"txid\" : \"transactionid\",   (string) The transaction id\n"
            "  \"spends\" : [\n"
            "    {\n"
            "      \"type\" : \"sapling\",      (string) The type of address\n"
            "      \"spend\" : n,                    (numeric) the index of the spend within vShieldedSpend\n"
            "      \"txidPrev\" : \"transactionid\",   (string) The id for the transaction this note was created in\n"
            "      \"nullifier\" : \"nullifier\",   (string) The nullifier\n"
            "      \"anchor\" : \"anchor\",   (string) The anchor\n"
            "      \"commitment\" : \"commitment\",   (string) The commitment\n"
            "      \"rk\" : \"rk\",   (string) The rk\n"
            "      \"zkproof\" : \"zkproof\",   (string) Hexadecimal string representation of raw zksnark proof\n"
            "      \"outputPrev\" : n,               (numeric) the index of the output within the vShieldedOutput\n"
            "      \"address\" : \"dragonxaddress\",   (string) The DragonX shielded address involved in the transaction\n"
            "      \"value\" : x.xxx                 (numeric) The amount in " + CURRENCY_UNIT + "\n"
            "      \"valueZat\" : xxxx               (numeric) The amount in puposhis\n"
            "    }\n"
            "    ,...\n"
            "  ],\n"
            "  \"outputs\" : [\n"
            "    {\n"
            "      \"type\" : \"sapling\",      (string) The type of address\n"
            "      \"output\" : n,                   (numeric) the index of the output within the vShieldedOutput\n"
            "      \"address\" : \"dragonxaddress\",   (string) The DragonX address involved in the transaction\n"
            "      \"outgoing\" : true|false        (boolean) True if the output is not for an address in the wallet\n"
            "      \"value\" : x.xxx                 (numeric) The amount in " + CURRENCY_UNIT + "\n"
            "      \"valueZat\" : xxxx               (numeric) The amount in puposhis\n"
            "      \"memo\" : \"hexmemo\",             (string) Hexademical string representation of the memo field\n"
            "      \"memoStr\" : \"memo\",             (string) Only returned if memo contains valid UTF-8 text.\n"
            "    }\n"
            "    ,...\n"
            "  ],\n"
            "}\n"

            "\nExamples:\n"
            + HelpExampleCli("z_viewtransaction", "\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\"")
            + HelpExampleCli("z_viewtransaction", "\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\" true")
            + HelpExampleRpc("z_viewtransaction", "\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

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

    UniValue entry(UniValue::VOBJ);

    if (!pwalletMain->mapWallet.count(hash))
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid or non-wallet transaction id!");
    const CWalletTx& wtx = pwalletMain->mapWallet[hash];

    entry.push_back(Pair("txid", hash.GetHex()));

    UniValue spends(UniValue::VARR);
    UniValue outputs(UniValue::VARR);
	char str[64];

    // Sapling spends
    std::set<uint256> ovks;
    for (size_t i = 0; i < wtx.vShieldedSpend.size(); ++i) {
        auto spend = wtx.vShieldedSpend[i];

        // Fetch the note that is being spent
        auto res = pwalletMain->mapSaplingNullifiersToNotes.find(spend.nullifier);
        if (res == pwalletMain->mapSaplingNullifiersToNotes.end()) {
            if(fZdebug) {
			    fprintf(stderr,"Could not find spending note %s\n", uint256_str(str, spend.nullifier));
            }
            continue;
        }
        auto op        = res->second;
        auto wtxPrev   = pwalletMain->mapWallet.at(op.hash);
        auto decrypted = wtxPrev.DecryptSaplingNote(op).get();
        auto notePt    = decrypted.first;
        auto pa        = decrypted.second;

        // Store the OutgoingViewingKey for recovering outputs
        libzcash::SaplingFullViewingKey fvk;
        assert(pwalletMain->GetSaplingFullViewingKey(wtxPrev.mapSaplingNoteData.at(op).ivk, fvk));
        ovks.insert(fvk.ovk);

        UniValue entry(UniValue::VOBJ);
        entry.push_back(Pair("type", ADDR_TYPE_SAPLING));
        entry.push_back(Pair("spend", (int)i));
        entry.push_back(Pair("nullifier", uint256_str(str,spend.nullifier)));
        entry.push_back(Pair("anchor", uint256_str(str,spend.anchor)));
        entry.push_back(Pair("commitment", uint256_str(str,spend.cv)));
        entry.push_back(Pair("rk", uint256_str(str,spend.rk)));
		//TODO: how to get list of witnesses and height?
        //entry.push_back(Pair("witnessHeight", op.witnessHeight));
        entry.push_back(Pair("spendAuthSig", HexStr(spend.spendAuthSig.begin(), spend.spendAuthSig.end())));
        entry.push_back(Pair("zkproof", HexStr(spend.zkproof.begin(), spend.zkproof.end())));
        entry.push_back(Pair("txidPrev", op.hash.GetHex()));
        entry.push_back(Pair("outputPrev", (int)op.n));
        entry.push_back(Pair("address", EncodePaymentAddress(pa)));
        entry.push_back(Pair("value", ValueFromAmount(notePt.value())));
        entry.push_back(Pair("valueZat", notePt.value()));
        spends.push_back(entry);
    }

    // Sapling outputs
    for (uint32_t i = 0; i < wtx.vShieldedOutput.size(); ++i) {
        auto op = SaplingOutPoint(hash, i);

        SaplingNotePlaintext notePt;
        SaplingPaymentAddress pa;
        bool isOutgoing;

        auto decrypted = wtx.DecryptSaplingNote(op);
        if (decrypted) {
            notePt = decrypted->first;
            pa = decrypted->second;
            isOutgoing = false;
        } else {
            // Try recovering the output
            auto recovered = wtx.RecoverSaplingNote(op, ovks);
            if (recovered) {
                notePt = recovered->first;
                pa = recovered->second;
                isOutgoing = true;
            } else {
                // Unreadable or unconfirmed?
                if(fZdebug) {
			        fprintf(stderr,"Could not recover Sapling note!\n");
                }
                continue;
            }
        }
        auto memo = notePt.memo();

        UniValue entry(UniValue::VOBJ);
        entry.push_back(Pair("type", ADDR_TYPE_SAPLING));
        entry.push_back(Pair("output", (int)op.n));
        entry.push_back(Pair("outgoing", isOutgoing));
        entry.push_back(Pair("address", EncodePaymentAddress(pa)));
        entry.push_back(Pair("value", ValueFromAmount(notePt.value())));
        entry.push_back(Pair("valueZat", notePt.value()));
        entry.push_back(Pair("memo", HexStr(memo)));
        if (memo[0] <= 0xf4) {
            auto end = std::find_if(memo.rbegin(), memo.rend(), [](unsigned char v) { return v != 0; });
            std::string memoStr(memo.begin(), end.base());
            if (utf8::is_valid(memoStr)) {
                entry.push_back(Pair("memoStr", memoStr));
            }
        }
        outputs.push_back(entry);
    }

    entry.push_back(Pair("spends", spends));
    entry.push_back(Pair("outputs", outputs));

    return entry;
}


UniValue z_getoperationresult(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 1)
        throw runtime_error(
            "z_getoperationresult ([\"operationid\", ... ]) \n"
            "\nRetrieve the result and status of an operation which has finished, and then remove the operation from memory."
            + HelpRequiringPassphrase() + "\n"
            "\nArguments:\n"
            "1. \"operationid\"         (array, optional) A list of operation ids we are interested in.  If not provided, examine all operations known to the node.\n"
            "\nResult:\n"
            "\"    [object, ...]\"      (array) A list of JSON objects\n"
            "\nExamples:\n"
            + HelpExampleCli("z_getoperationresult", "'[\"operationid\", ... ]'")
            + HelpExampleRpc("z_getoperationresult", "'[\"operationid\", ... ]'")
        );

    // This call will remove finished operations
    return z_getoperationstatus_IMPL(params, true);
}

UniValue z_getoperationstatus(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
   if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 1)
        throw runtime_error(
            "z_getoperationstatus ([\"operationid\", ... ]) \n"
            "\nGet operation status and any associated result or error data.  The operation will remain in memory."
            + HelpRequiringPassphrase() + "\n"
            "\nArguments:\n"
            "1. \"operationid\"         (array, optional) A list of operation ids we are interested in.  If not provided, examine all operations known to the node.\n"
            "\nResult:\n"
            "\"    [object, ...]\"      (array) A list of JSON objects\n"
            "\nExamples:\n"
            + HelpExampleCli("z_getoperationstatus", "'[\"operationid\", ... ]'")
            + HelpExampleRpc("z_getoperationstatus", "'[\"operationid\", ... ]'")
        );

   // This call is idempotent so we don't want to remove finished operations
   return z_getoperationstatus_IMPL(params, false);
}

UniValue z_getoperationstatus_IMPL(const UniValue& params, bool fRemoveFinishedOperations=false)
{
    LOCK2(cs_main, pwalletMain->cs_wallet);

    std::set<AsyncRPCOperationId> filter;
    if (params.size()==1) {
        UniValue ids = params[0].get_array();
        for (const UniValue & v : ids.getValues()) {
            filter.insert(v.get_str());
        }
    }
    bool useFilter = (filter.size()>0);

    UniValue ret(UniValue::VARR);
    std::shared_ptr<AsyncRPCQueue> q = getAsyncRPCQueue();
    std::vector<AsyncRPCOperationId> ids = q->getAllOperationIds();

    for (auto id : ids) {
        if (useFilter && !filter.count(id))
            continue;

        std::shared_ptr<AsyncRPCOperation> operation = q->getOperationForId(id);
        if (!operation) {
            continue;
            // It's possible that the operation was removed from the internal queue and map during this loop
            // throw JSONRPCError(RPC_INVALID_PARAMETER, "No operation exists for that id.");
        }

        UniValue obj = operation->getStatus();
        std::string s = obj["status"].get_str();
        if (fRemoveFinishedOperations) {
            // Caller is only interested in retrieving finished results
            if ("success"==s || "failed"==s || "cancelled"==s) {
                ret.push_back(obj);
                q->popOperationForId(id);
            }
        } else {
            ret.push_back(obj);
        }
    }

    std::vector<UniValue> arrTmp = ret.getValues();

    // sort results chronologically by creation_time
    std::sort(arrTmp.begin(), arrTmp.end(), [](UniValue a, UniValue b) -> bool {
        const int64_t t1 = find_value(a.get_obj(), "creation_time").get_int64();
        const int64_t t2 = find_value(b.get_obj(), "creation_time").get_int64();
        return t1 < t2;
    });

    ret.clear();
    ret.setArray();
    ret.push_backV(arrTmp);

    return ret;
}


// transaction.h comment: spending taddr output requires CTxIn >= 148 bytes and typical taddr txout is 34 bytes
#define CTXIN_SPEND_DUST_SIZE   148
#define CTXOUT_REGULAR_SIZE     34

// Resolve the special fromaddress "z" (spend from any zaddr) to a concrete zaddr:
// gather this wallet's Sapling notes, pick a random zaddr whose confirmed balance
// covers the total outputs + fee. Extracted verbatim from z_sendmany (behavior-
// preserving); throws JSONRPCError when no single zaddr has enough funds.
static std::string SelectAnyZaddrSource(const UniValue& outputs, const UniValue& params)
{
    // TODO: refactor this and z_getbalances to use common code
    std::set<libzcash::PaymentAddress> zaddrs = {};
    std::set<libzcash::SaplingPaymentAddress> saplingzaddrs = {};
    pwalletMain->GetSaplingPaymentAddresses(saplingzaddrs);

    zaddrs.insert(saplingzaddrs.begin(), saplingzaddrs.end());

    int nMinDepth = 1;
    std::vector<SaplingNoteEntry> saplingEntries;
    pwalletMain->GetFilteredNotes(saplingEntries, zaddrs, nMinDepth);

    std::map<std::string, CAmount> mapBalances;
    for (auto & entry : saplingEntries) {
        auto zaddr       = EncodePaymentAddress(entry.address);
        CAmount nBalance = CAmount(entry.note.value());
        if(mapBalances.count(zaddr)) {
            mapBalances[zaddr] += nBalance;
        } else {
            mapBalances[zaddr] = nBalance;
        }
    }
    std::vector<std::pair<std::string,CAmount>> vec;
    std::copy(mapBalances.begin(), mapBalances.end(), std::back_inserter<std::vector<std::pair<std::string,CAmount>>>(vec));

    std::sort(vec.begin(), vec.end(), [](const std::pair<std::string, CAmount> &l, const std::pair<std::string,CAmount> &r)
        {
            if (l.second != r.second) {
                return l.second > r.second;
            }
            return l.first > r.first;
        });

    //TODO: avoid calculating nTotalOut twice
    CAmount nTotalOut = 0;
    for (const UniValue& o : outputs.getValues()) {
        if (!o.isObject())
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected object");

        UniValue av = find_value(o, "amount");
        CAmount nAmount = AmountFromValue( av );
        if (nAmount < 0)
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, amount must be positive");

        nTotalOut += nAmount;
    }

    //GOAL: choose one random zaddress with enough funds
    CAmount nFee = ASYNC_RPC_OPERATION_DEFAULT_MINERS_FEE;   // default when params.size()<=3 (was uninitialized)
    if (params.size() > 3) {
        if (params[3].get_real() == 0.0) {
            nFee = 0;
        } else {
            nFee = AmountFromValue( params[3] );
        }
    }

    // the total amount needed in a single zaddr to use as fromaddress
    CAmount nMinBal = nTotalOut + nFee;

    std::vector<std::string> vPotentialAddresses;
    for (auto & entry : vec) {
        if(entry.second >= nMinBal) {
            vPotentialAddresses.push_back(entry.first);
        }
    }

    // select a random address with enough confirmed balance
    auto nPotentials = vPotentialAddresses.size();
    if (nPotentials > 0) {
        LogPrintf("%s: Selecting one of %lu potential source zaddrs\n", __func__, nPotentials);
        return vPotentialAddresses[ GetRandInt(nPotentials) ];
    }
    // Automagic zaddr source selection failed, exit honorably
    throw JSONRPCError(RPC_INVALID_PARAMETER, "No single zaddr currently has enough funds to make that transaction, you may need to wait for confirmations.");
}

// Parse and validate the z_sendmany "outputs" array into taddr/zaddr recipient lists
// (accumulating nTotalOut). Extracted verbatim from z_sendmany; throws JSONRPCError on
// any malformed entry (unknown key, bad address, memo misuse/oversize, negative amount).
static void ParseSendManyRecipients(const UniValue& outputs, uint32_t branchId,
                                    std::vector<SendManyRecipient>& taddrRecipients,
                                    std::vector<SendManyRecipient>& zaddrRecipients,
                                    CAmount& nTotalOut)
{
    for (const UniValue& o : outputs.getValues()) {
        if (!o.isObject())
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected object");

        // sanity check, report error if unknown key-value pairs
        for (const string& name_ : o.getKeys()) {
            std::string s = name_;
            if (s != "address" && s != "amount" && s!="memo") {
                throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, unknown key: ")+s);
            }
        }

        string address = find_value(o, "address").get_str();
        bool isZaddr = false;
        CTxDestination taddr = DecodeDestination(address);
        if (!IsValidDestination(taddr)) {
            auto res = DecodePaymentAddress(address);
            if (IsValidPaymentAddress(res, branchId)) {
                isZaddr = true;
            } else {
                throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, unknown address format: ")+address );
            }
        }// else if ( ASSETCHAINS_PRIVATE != 0 && hush_isnotaryvout((char *)address.c_str()) == 0 ) {
        //    throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Extreme Privacy! You must send to a zaddr");
        //}

        UniValue memoValue = find_value(o, "memo");
        string memo;
        if (!memoValue.isNull()) {
            memo = memoValue.get_str();
            if (!isZaddr) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Memo cannot be used with a taddr.  It can only be used with a zaddr.");
            } else if(memo.substr(0,5) == "utf8:") {
                // Support a prefix "utf8:" which allows giving utf8 text instead of hex
                auto str = memo.substr(5);
                if (utf8::is_valid(str)) {
                    memo = HexStr(str);
                } else {
                    throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid utf8 in memo");
                }
            } else if (!IsHex(memo)) {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected memo data in hexadecimal format or to use 'utf8:' prefix.");
            }
            if (memo.length() > HUSH_MEMO_SIZE*2) {
                throw JSONRPCError(RPC_INVALID_PARAMETER,  strprintf("Invalid parameter, size of memo is larger than maximum allowed %d", HUSH_MEMO_SIZE ));
            }
        }

        UniValue av = find_value(o, "amount");
        CAmount nAmount = AmountFromValue( av );
        if (nAmount < 0)
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, amount must be positive");

        if (isZaddr) {
            zaddrRecipients.push_back( SendManyRecipient(address, nAmount, memo) );
        } else {
            taddrRecipients.push_back( SendManyRecipient(address, nAmount, memo) );
        }

        nTotalOut += nAmount;
    }
}

UniValue z_sendmany(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 2 || params.size() > 5)
        throw runtime_error(
            "z_sendmany \"fromaddress\" [{\"address\":... ,\"amount\":...},...] ( minconf ) ( fee ) (opreturn)\n"
            "\nSend multiple times. Amounts are decimal numbers with at most 8 digits of precision."
            "\nChange generated from a taddr flows to a new taddr address, while change generated from a zaddr returns to itself."
            "\nWhen sending coinbase UTXOs to a zaddr, change is not allowed. The entire value of the UTXO(s) must be consumed."
            + HelpRequiringPassphrase() + "\n"
            "\nArguments:\n"
            "1. \"fromaddress\"         (string, required) The taddr or zaddr to send the funds from. Use 'z' to spend from any zaddr.\n"
            "2. \"amounts\"             (array, required) An array of json objects representing the amounts to send.\n"
            "    [{\n"
            "      \"address\":address  (string, required) The address is a taddr or zaddr\n"
            "      \"amount\":amount    (numeric, required) The amount to send this address\n"
            "      \"memo\":memo        (string, optional) If the address is a zaddr, raw data represented in hexadecimal string format\n"
            "    }, ... ]\n"
            "3. minconf               (numeric, optional, default=1) Only use funds confirmed at least this many times.\n"
            "4. fee                   (numeric, optional, default="
            + strprintf("%s", FormatMoney(ASYNC_RPC_OPERATION_DEFAULT_MINERS_FEE)) + ") The fee amount to attach to this transaction.\n"
            "5. opreturn              (string, optional) Hex encoded data for OP_RETURN. Or a utf8 string prefixed with 'utf8:' which will be automatically converted to hex\n"
            "\nResult:\n"
            "\"operationid\"          (string) An operationid to pass to z_getoperationstatus to get the result of the operation.\n"
            "\nExamples:\n"
            + HelpExampleCli("z_sendmany", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" '[{\"address\": \"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\" ,\"amount\": 5.0}]'")
            + HelpExampleRpc("z_sendmany", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\", [{\"address\": \"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\" ,\"amount\": 5.0}]")
            + HelpExampleCli("z_sendmany", "\"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\" '[{\"address\": \"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\" ,\"amount\": 3.14}]'")
            + HelpExampleRpc("z_sendmany", "\"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\", [{\"address\": \"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\" ,\"amount\": 3.14}]")
            + HelpExampleCli("z_sendmany", "\"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\" '[{\"address\": \"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\" ,\"amount\": 3.14}]' 1 0.0001 \"utf8: this will be converted to hex")
            + HelpExampleRpc("z_sendmany", "\"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\" '[{\"address\": \"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\" ,\"amount\": 3.14}]' 1 0.0001 \"utf8: this will be converted to hex")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    // Guard against building shielded transactions before the chain is fully synced;
    // sending while behind the tip can leak metadata usable for linkability analysis.
    THROW_IF_SYNCING(HUSH_INSYNC);

    // Check that the from address is valid.
    auto fromaddress  = params[0].get_str();
    bool fromTaddr    = false;
    bool fromSapling  = false;
    uint32_t branchId = CurrentEpochBranchId(chainActive.Height(), Params().GetConsensus());
    UniValue outputs  = params[1].get_array();

    if (outputs.size()==0)
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, amounts array is empty.");

    // TODO: implement special symbolic fromaddrs
    // TODO: list of (zaddr,amount)
    // "z" => spend from any zaddr
    // "t" => spend from any taddr
    // "*" => spend from any addr, zaddrs first
    if(fromaddress == "z") {
        fromaddress = SelectAnyZaddrSource(outputs, params);
    } else {
        CTxDestination taddr     = DecodeDestination(fromaddress);
        fromTaddr = IsValidDestination(taddr);
        if (!fromTaddr) {
            auto res = DecodePaymentAddress(fromaddress);
            if (!IsValidPaymentAddress(res, branchId)) {
                // invalid
                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid from address, should be a taddr or zaddr.");
            }

            // Check that we have the spending key
            if (!boost::apply_visitor(HaveSpendingKeyForPaymentAddress(pwalletMain), res)) {
                 throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "From address does not belong to this node, zaddr spending key not found.");
            }

            // Remember whether this is a Sapling address
            fromSapling = boost::get<libzcash::SaplingPaymentAddress>(&res) != nullptr;
        }
    }


    // Recipients
    std::vector<SendManyRecipient> taddrRecipients;
    std::vector<SendManyRecipient> zaddrRecipients;
    CAmount nTotalOut = 0;
    // Optional OP_RETURN data
    CScript opret;
    UniValue opretValue;
    if(params.size() == 5) {
        opretValue = params[4].get_str();

        // Support a prefix "utf8:" which allows giving utf8 text instead of hex
        if(opretValue.get_str().substr(0,5) == "utf8:") {
            auto str = opretValue.get_str().substr(5);
            if (utf8::is_valid(str)) {
                opretValue = HexStr(str);
            } else {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid utf8 in opreturn");
            }
        }
    }

    bool containsSaplingOutput = false;

    // Create the CScript representation of the OP_RETURN
    if (!opretValue.isNull()) {
        opret << OP_RETURN << ParseHex(opretValue.get_str().c_str());
    }

    ParseSendManyRecipients(outputs, branchId, taddrRecipients, zaddrRecipients, nTotalOut);

    std::vector<SaplingNoteEntry> saplingEntries;
    // find all unspent and unlocked notes in this zaddr
    pwalletMain->GetFilteredNotes(saplingEntries, fromaddress);

    // sort notes from largest to smallest, which means
    // we will spend the largest first
    std::sort(saplingEntries.begin(), saplingEntries.end(),
        [](SaplingNoteEntry i, SaplingNoteEntry j) -> bool {
            return i.note.value() > j.note.value();
        });

    CAmount total_value = 0;

    // correctness: reserve the miner fee during note selection so we don't stop at exactly nTotalOut
    // and then fail later with a spurious "insufficient funds". Mirrors the nFee computed below.
    CAmount nFeeReserve = ASYNC_RPC_OPERATION_DEFAULT_MINERS_FEE;
    if (params.size() > 3)
        nFeeReserve = (params[3].get_real() == 0.0) ? 0 : AmountFromValue(params[3]);

    std::vector<SendManyInputSaplingNote> saplingNoteInputs;
    // Decide which sapling notes will be spent
    for (const SaplingNoteEntry& entry : saplingEntries) {
        CAmount nValue = entry.note.value();
        libzcash::SaplingExtendedSpendingKey extsk;
        if (!pwalletMain->GetSaplingExtendedSpendingKey(entry.address, extsk)) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Could not find spending key for payment address.");
        }
        saplingNoteInputs.emplace_back(entry.op, entry.note, nValue, extsk.expsk);
        total_value += nValue;
        LogPrintf("%s: adding note to spend with value=%s, total_value=%s\n", __func__, FormatMoney(nValue), FormatMoney(total_value) );
        if (total_value >= nTotalOut + nFeeReserve) {
            // we have enough note value (incl. miner fee) to make the tx
            LogPrintf("%s: found enough notes, nTotalOut=%s total_value=%s\n", __func__, FormatMoney(nTotalOut), FormatMoney(total_value) );
            break;
        }
    }

   // SIETCH: Sprinkle our cave with some magic privacy zdust
   // End goal is to have this be as large as possible without slowing xtns down too much
   // A value of 7 will provide much stronger linkability privacy versus pre-Sietch operations
   // DEFAULT_MIN_ZOUTS (7): default number of dummy z-outputs padded onto each z_sendmany.
   // MAX_ZOUTS (50): upper bound for the operator-tunable -sietch-min-zouts arg.
   // The effective floor is clamped to [3, MAX_ZOUTS] below.
	unsigned int DEFAULT_MIN_ZOUTS=7;
	unsigned int MAX_ZOUTS=50;
	unsigned int MIN_ZOUTS=GetArg("-sietch-min-zouts", DEFAULT_MIN_ZOUTS);

    if((MIN_ZOUTS<3) || (MIN_ZOUTS>MAX_ZOUTS)) {
        LogPrintf("%s: Sietch min zouts must be >= 3 and <= %d, setting to default value of %d\n", __FUNCTION__, MAX_ZOUTS, DEFAULT_MIN_ZOUTS );
        MIN_ZOUTS=DEFAULT_MIN_ZOUTS;
    }

    int nAmount = 0;
	while (zaddrRecipients.size() < MIN_ZOUTS) {
        // OK, we identify this xtn as needing privacy zdust, we must decide how much, non-deterministically
        int decider = 1 + GetRandInt(100); // random int between 1 and 100
        string zdust1, zdust2;

        // Which zaddr we send to is randomly generated
        zdust1 = randomSietchZaddr();

        // And their ordering when given to internals is also non-deterministic, which
        // helps breaks assumptions blockchain analysts may use from z_sendmany internals
        if (decider % 2) {
	        zaddrRecipients.insert(std::begin(zaddrRecipients), newSietchRecipient(zdust1) );
        } else {
	        zaddrRecipients.push_back( newSietchRecipient(zdust1) );
        }
        if(fZdebug)
            fprintf(stderr,"%s: adding %s as zdust receiver\n", __FUNCTION__, zdust1.c_str());

        //50% chance of adding another zout
        if (decider % 2) {
            zdust2 = randomSietchZaddr();
            // 50% chance of adding it to the front or back since all odd numbers are 1 or 3 mod 4
            if(decider % 4 == 3) {
                zaddrRecipients.push_back(  newSietchRecipient(zdust2)  );
            } else {
                zaddrRecipients.insert(std::begin(zaddrRecipients), newSietchRecipient(zdust2) );
            }
            if(fZdebug)
                fprintf(stderr,"%s: adding %s as zdust receiver\n", __FUNCTION__, zdust2.c_str());
        }

	}

    int nextBlockHeight = chainActive.Height() + 1;
    CMutableTransaction mtx;
    mtx.fOverwintered = true;
    mtx.nVersionGroupId = SAPLING_VERSION_GROUP_ID;
    mtx.nVersion = SAPLING_TX_VERSION;
    unsigned int max_tx_size = MAX_TX_SIZE_AFTER_SAPLING;

    // As a sanity check, estimate and verify that the size of the transaction will be valid.
    // Depending on the input notes, the actual tx size may turn out to be larger and perhaps invalid.
    if(fZdebug)
        LogPrintf("%s: Verifying xtn size is valid\n", __FUNCTION__);
    size_t txsize = 0;
    for (int i = 0; i < zaddrRecipients.size(); i++) {
        auto address = std::get<0>(zaddrRecipients[i]);
        auto res = DecodePaymentAddress(address);
        bool toSapling = boost::get<libzcash::SaplingPaymentAddress>(&res) != nullptr;
        if (toSapling) {
            mtx.vShieldedOutput.push_back(OutputDescription());
        } else {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, not a Sapling zaddr!");
        }
    }
    CTransaction tx(mtx);
    txsize += GetSerializeSize(tx, SER_NETWORK, tx.nVersion);
    if (fromTaddr) {
        txsize += CTXIN_SPEND_DUST_SIZE;
        // DragonX is ac_private=1 (fully shielded from genesis); transparent outputs are
        // banned, so in practice there is no taddr change and this estimate is conservative.
        txsize += CTXOUT_REGULAR_SIZE;      // There will probably be taddr change
    }
    txsize += CTXOUT_REGULAR_SIZE * taddrRecipients.size();
    if (txsize > max_tx_size) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Size of raw transaction %d would be larger than limit of %d bytes", txsize, max_tx_size ));
    }

    // Minimum confirmations
    int nMinDepth = 1;
    if (params.size() > 2) {
        nMinDepth = params[2].get_int();
    }
    if (nMinDepth < 0) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Minimum number of confirmations cannot be less than 0");
    }

    // Fee in Puposhis, not currency format
    CAmount nFee        = ASYNC_RPC_OPERATION_DEFAULT_MINERS_FEE;
    CAmount nDefaultFee = nFee;

    if (params.size() > 3) {
        if (params[3].get_real() == 0.0) {
            nFee = 0;
        } else {
            nFee = AmountFromValue( params[3] );
        }

        // Check that the user specified fee is not absurd.
        // This allows amount=0 (and all amount < nDefaultFee) transactions to use the default network fee
        // or anything less than nDefaultFee instead of being forced to use a custom fee and leak metadata
        if (nTotalOut < nDefaultFee) {
            if (nFee > nDefaultFee) {
                    // Allow large fees if OP_RETURN is being used
                    if( opretValue.isNull() ) {
                        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Small transaction amount %s has fee %s that is greater than the default fee %s", FormatMoney(nTotalOut), FormatMoney(nFee), FormatMoney(nDefaultFee)));
                    }
            }
        } else {
            // Check that the user specified fee is not absurd.
            if (nFee > nTotalOut) {
                    // Allow large fees if OP_RETURN is being used
                    if( opretValue.isNull() ) {
                        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Fee %s is greater than the sum of outputs %s and also greater than the default fee", FormatMoney(nFee), FormatMoney(nTotalOut)));
                    }
            }
	    }
    }

    // Use input parameters as the optional context info to be returned by z_getoperationstatus and z_getoperationresult.
    UniValue o(UniValue::VOBJ);
    o.push_back(Pair("fromaddress", fromaddress));
    o.push_back(Pair("amounts", params[1]));
    o.push_back(Pair("minconf", nMinDepth));
    o.push_back(Pair("fee", std::stod(FormatMoney(nFee))));
    UniValue contextInfo = o;
    if(fZdebug)
        LogPrintf("%s: Building the raw ztransaction\n", __FUNCTION__);

    // Sapling Tx Builder
    boost::optional<TransactionBuilder> builder;
    builder = TransactionBuilder(Params().GetConsensus(), nextBlockHeight, pwalletMain);

    // Contextual transaction
    CMutableTransaction contextualTx; // = CreateNewContextualCMutableTransaction(Params().GetConsensus(), nextBlockHeight);
    contextualTx.nVersion = 2;

    // Create operation and add to global queue
    std::shared_ptr<AsyncRPCQueue> q = getAsyncRPCQueue();
    std::shared_ptr<AsyncRPCOperation> operation( new AsyncRPCOperation_sendmany(builder, contextualTx, fromaddress, taddrRecipients, zaddrRecipients, saplingNoteInputs, nMinDepth, nFee, contextInfo, opret) );
    if (!q->addOperation(operation)) {
        throw JSONRPCError(RPC_INTERNAL_ERROR,
            "Async RPC queue is shutting down; the operation was not queued");
    }

    if(fZdebug)
        LogPrintf("%s: Submitted to async queue\n", __FUNCTION__);
    AsyncRPCOperationId operationId = operation->getId();
    return operationId;
}

/**
When estimating the number of coinbase utxos we can shield in a single transaction:
1. Joinsplit description is 1802 bytes.
2. Transaction overhead ~ 100 bytes
3. Spending a typical P2PKH is >=148 bytes, as defined in CTXIN_SPEND_DUST_SIZE.
4. Spending a multi-sig P2SH address can vary greatly:
   https://github.com/bitcoin/bitcoin/blob/c3ad56f4e0b587d8d763af03d743fdfc2d180c9b/src/main.cpp#L517
   In real-world coinbase utxos, we consider a 3-of-3 multisig, where the size is roughly:
    (3*(33+1))+3 = 105 byte redeem script
    105 + 1 + 3*(73+1) = 328 bytes of scriptSig, rounded up to 400 based on testnet experiments.
*/
#define CTXIN_SPEND_P2SH_SIZE 400
#define SHIELD_COINBASE_DEFAULT_LIMIT 50

UniValue z_shieldcoinbase(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() < 2 || params.size() > 5)
        throw runtime_error(
            "z_shieldcoinbase \"fromaddress\" \"tozaddress\" ( fee ) ( limit ) ( donation )\n"
            "\nShield transparent coinbase funds by sending to a shielded zaddr.  This is an asynchronous operation and utxos"
            "\nselected for shielding will be locked.  If there is an error, they are unlocked.  The RPC call `listlockunspent`"
            "\ncan be used to return a list of locked utxos.  The number of coinbase utxos selected for shielding can be limited"
            "\nby the caller.  If the limit parameter is set to zero, as many as will fit will be used."
            "\nAny limit is constrained by the consensus rule defining a maximum"
            "\ntransaction size of " + strprintf("%d bytes.", MAX_TX_SIZE_AFTER_SAPLING)
            + HelpRequiringPassphrase() + "\n"
            "\nArguments:\n"
            "1. \"fromaddress\"         (string, required) The address is a taddr or \"*\" for all taddrs belonging to the wallet.\n"
            "2. \"toaddress\"           (string, required) The address is a zaddr.\n"
            "3. fee                   (numeric, optional, default="
            + strprintf("%s", FormatMoney(SHIELD_COINBASE_DEFAULT_MINERS_FEE)) + ") The fee amount to attach to this transaction.\n"
            "4. limit                 (integer, optional, default="
            + strprintf("%d", SHIELD_COINBASE_DEFAULT_LIMIT) + ") Limit on the maximum number of utxos to shield.  Set to 0 to use as many as will fit in the transaction.\n"
            "5. donation                 (integer, optional, default=0) Percentage of coinbase funds to donate. Must be between 0 and 10 inclusive.\n"
            "\nResult:\n"
            "{\n"
            "  \"remainingUTXOs\": xxx       (integer) Number of coinbase utxos still available for shielding.\n"
            "  \"remainingValue\": xxx       (numeric) Value of coinbase utxos still available for shielding.\n"
            "  \"shieldingUTXOs\": xxx       (integer) Number of coinbase utxos being shielded.\n"
            "  \"shieldingValue\": xxx       (numeric) Value of coinbase utxos being shielded.\n"
            "  \"opid\": xxx                 (string) An operationid to pass to z_getoperationstatus to get the result of the operation.\n"
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("z_shieldcoinbase", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\" \"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\"")
            + HelpExampleRpc("z_shieldcoinbase", "\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\", \"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\"")
            + HelpExampleCli("z_shieldcoinbase", "'*'\", \"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\"")
            + HelpExampleRpc("z_shieldcoinbase", "'*'\", \"zs14d8tc0hl9q0vg5l28uec5vk6sk34fkj2n8s7jalvw5fxpy6v39yn4s2ga082lymrkjk0x2nqg37\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    // Guard against building shielded transactions before the chain is fully synced;
    // sending while behind the tip can leak metadata usable for linkability analysis.
    THROW_IF_SYNCING(HUSH_INSYNC);

    // Validate the from address
    auto fromaddress = params[0].get_str();
    bool isFromWildcard = fromaddress == "*";
    CTxDestination taddr;
    if (!isFromWildcard) {
        taddr = DecodeDestination(fromaddress);
        if (!IsValidDestination(taddr)) {
            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid from address, should be a taddr or \"*\".");
        }
    }

    // Validate the destination address
    auto destaddress = params[1].get_str();
    if (!IsValidPaymentAddressString(destaddress, CurrentEpochBranchId(chainActive.Height(), Params().GetConsensus()))) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, unknown address format: ") + destaddress );
    }

    // Convert fee from currency format to zatoshis
    CAmount nFee = SHIELD_COINBASE_DEFAULT_MINERS_FEE;
    if (params.size() > 2) {
        if (params[2].get_real() == 0.0) {
            nFee = 0;
        } else {
            nFee = AmountFromValue( params[2] );
        }
    }

    int nLimit = SHIELD_COINBASE_DEFAULT_LIMIT;
    if (params.size() > 3) {
        nLimit = params[3].get_int();
        if (nLimit < 0) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Limit on maximum number of utxos cannot be negative");
        }
    }

    uint8_t donation = 0;
    if (params.size() > 4) {
        donation = params[4].get_int();
        if (donation < 0 || donation > 10 ) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid donation percentage, must be an integer between 0 and 10");
        }
    }

    LogPrintf("%s: donation=%d\n", __func__, donation);

    int nextBlockHeight = chainActive.Height() + 1;
    bool overwinterActive = nextBlockHeight>=1 ? true : false; // NetworkUpgradeActive(nextBlockHeight, Params().GetConsensus(), Consensus::UPGRADE_OVERWINTER);
    unsigned int max_tx_size = MAX_TX_SIZE_AFTER_SAPLING;

    // Prepare to get coinbase utxos
    std::vector<ShieldCoinbaseUTXO> inputs;
    CAmount shieldedValue = 0;
    CAmount remainingValue = 0;
    //TODO: update these estimates for Sapling SpendDescriptions
    size_t estimatedTxSize = 2000;  // 1802 joinsplit description + tx overhead + wiggle room

    #ifdef __LP64__
    uint64_t utxoCounter = 0;
    #else
    size_t utxoCounter = 0;
    #endif

    bool maxedOutFlag = false;
    size_t mempoolLimit = (nLimit != 0) ? nLimit : (overwinterActive ? 0 : (size_t)GetArg("-mempooltxinputlimit", 0));

    // Set of addresses to filter utxos by
    std::set<CTxDestination> destinations = {};
    if (!isFromWildcard) {
        destinations.insert(taddr);
    }

    // Get available utxos
    vector<COutput> vecOutputs;
    pwalletMain->AvailableCoins(vecOutputs, true, NULL, false, true);

    // Find unspent coinbase utxos and update estimated size
    BOOST_FOREACH(const COutput& out, vecOutputs) {
        if (!out.fSpendable) {
            continue;
        }

        CTxDestination address;
        if (!ExtractDestination(out.tx->vout[out.i].scriptPubKey, address)) {
            continue;
        }

        // If taddr is not wildcard "*", filter utxos
        if (destinations.size() > 0 && !destinations.count(address)) {
            continue;
        }

        if (!out.tx->IsCoinBase()) {
            continue;
        }

        utxoCounter++;
        auto scriptPubKey = out.tx->vout[out.i].scriptPubKey;
        CAmount nValue = out.tx->vout[out.i].nValue;

        if (!maxedOutFlag) {
            size_t increase = (boost::get<CScriptID>(&address) != nullptr) ? CTXIN_SPEND_P2SH_SIZE : CTXIN_SPEND_DUST_SIZE;
            if (estimatedTxSize + increase >= max_tx_size ||
                (mempoolLimit > 0 && utxoCounter > mempoolLimit))
            {
                maxedOutFlag = true;
            } else {
                estimatedTxSize += increase;
                ShieldCoinbaseUTXO utxo = {out.tx->GetHash(), out.i, scriptPubKey, nValue};
                inputs.push_back(utxo);
                shieldedValue += nValue;
            }
        }

        if (maxedOutFlag) {
            remainingValue += nValue;
        }
    }

    #ifdef __LP64__
    uint64_t numUtxos = inputs.size();
    #else
    size_t numUtxos = inputs.size();
    #endif

    if (numUtxos == 0) {
        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Could not find any coinbase funds to shield.");
    }

    if (shieldedValue < nFee) {
        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS,
            strprintf("Insufficient coinbase funds, have %s, which is less than miners fee %s",
            FormatMoney(shieldedValue), FormatMoney(nFee)));
    }

    // Check that the user specified fee is sane (if too high, it can result in error -25 absurd fee)
    CAmount netAmount = shieldedValue - nFee;
    if (nFee > netAmount) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Fee %s is greater than the net amount to be shielded %s", FormatMoney(nFee), FormatMoney(netAmount)));
    }

    // Keep record of parameters in context object
    UniValue contextInfo(UniValue::VOBJ);
    contextInfo.push_back(Pair("fromaddress", params[0]));
    contextInfo.push_back(Pair("toaddress", params[1]));
    contextInfo.push_back(Pair("fee", ValueFromAmount(nFee)));
    contextInfo.push_back(Pair("donation", donation));

    TransactionBuilder builder = TransactionBuilder( Params().GetConsensus(), nextBlockHeight, pwalletMain);

    // Contextual transaction we will build on
    int blockHeight = chainActive.LastTip()->GetHeight();
    nextBlockHeight = blockHeight + 1;
    CMutableTransaction contextualTx = CreateNewContextualCMutableTransaction(
        Params().GetConsensus(), nextBlockHeight);
    contextualTx.nLockTime = chainActive.LastTip()->GetHeight();

    if (contextualTx.nVersion == 1) {
        contextualTx.nVersion = 2; // Tx format should support ztx's
    }

    // Create operation and add to global queue
    std::shared_ptr<AsyncRPCQueue> q = getAsyncRPCQueue();
    std::shared_ptr<AsyncRPCOperation> operation( new AsyncRPCOperation_shieldcoinbase(builder, contextualTx, inputs, destaddress, nFee, donation, contextInfo) );
    // The constructor has already locked the selected coins. Coin locks are
    // memory-only, so a refused queue at shutdown reclaims them with the process;
    // what must not happen is returning an opid for work that will never run.
    if (!q->addOperation(operation)) {
        throw JSONRPCError(RPC_INTERNAL_ERROR,
            "Async RPC queue is shutting down; the operation was not queued");
    }
    AsyncRPCOperationId operationId = operation->getId();

    // Return continuation information
    UniValue o(UniValue::VOBJ);
    o.push_back(Pair("remainingUTXOs", static_cast<uint64_t>(utxoCounter - numUtxos)));
    o.push_back(Pair("remainingValue", ValueFromAmount(remainingValue)));
    o.push_back(Pair("shieldingUTXOs", static_cast<uint64_t>(numUtxos)));
    o.push_back(Pair("shieldingValue", ValueFromAmount(shieldedValue)));
    o.push_back(Pair("donation", donation));
    o.push_back(Pair("opid", operationId));
    return o;
}

#define MERGE_TO_ADDRESS_DEFAULT_TRANSPARENT_LIMIT 50
#define MERGE_TO_ADDRESS_DEFAULT_SAPLING_LIMIT     90
#define OUTPUTDESCRIPTION_SIZE GetSerializeSize(OutputDescription(), SER_NETWORK, PROTOCOL_VERSION)
#define SPENDDESCRIPTION_SIZE GetSerializeSize(SpendDescription(), SER_NETWORK, PROTOCOL_VERSION)

UniValue z_mergetoaddress(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    string enableArg = "zmergetoaddress";

    if (fHelp || params.size() < 2 || params.size() > 7)
        throw runtime_error(
            "z_mergetoaddress [\"fromaddress\", ... ] \"toaddress\" ( fee ) ( transparent_limit ) ( shielded_limit ) ( memo )\n"
            "\nMerge multiple UTXOs and notes into a single UTXO or note.  Coinbase UTXOs are ignored; use `z_shieldcoinbase`"
            "\nto combine those into a single note."
            "\n\nThis is an asynchronous operation, and UTXOs selected for merging will be locked.  If there is an error, they"
            "\nare unlocked.  The RPC call `listlockunspent` can be used to return a list of locked UTXOs."
            "\n\nThe number of UTXOs and notes selected for merging can be limited by the caller."
            "\nArguments:\n"
            "1. fromaddresses         (string, required) A JSON array with addresses.\n"
            "                         The following special strings are accepted inside the array:\n"
            "                             - \"*\": Merge both UTXOs and notes from all addresses belonging to the wallet.\n"
            "                             - \"ANY_TADDR\": Merge UTXOs from all t-addrs belonging to the wallet.\n"
            "                             - \"ANY_ZADDR\": Merge notes from all z-addrs belonging to the wallet.\n"
            "                         If a special string is given, any given addresses of that type will be ignored.\n"
            "    [\n"
            "      \"address\"          (string) Can be a t-addr or a z-addr\n"
            "      ,...\n"
            "    ]\n"
            "2. \"toaddress\"           (string, required) The t-addr or z-addr to send the funds to.\n"
            "3. fee                   (numeric, optional, default="
            + strprintf("%s", FormatMoney(MERGE_TO_ADDRESS_OPERATION_DEFAULT_MINERS_FEE)) + ") The fee amount to attach to this transaction.\n"
            "4. transparent_limit     (numeric, optional, default="
            + strprintf("%d", MERGE_TO_ADDRESS_DEFAULT_TRANSPARENT_LIMIT) + ") Limit on the maximum number of UTXOs to merge.  Set to 0 to use as many as will fit in the transaction.\n"
            "4. shielded_limit        (numeric, optional, default="
            + strprintf("%d Sapling Notes", MERGE_TO_ADDRESS_DEFAULT_SAPLING_LIMIT) + ") Limit on the maximum number of notes to merge.  Set to 0 to merge as many as will fit in the transaction.\n"
            "5. maximum_utxo_size       (numeric, optional) eg, 0.0001 anything under 10000 satoshies will be merged, ignores 10,000 sat p2pk utxo that dragon uses, and merges coinbase utxo.\n"
            "6. \"memo\"                (string, optional) Encoded as hex. When toaddress is a z-addr, this will be stored in the memo field of the new note.\n"

            "\nResult:\n"
            "{\n"
            "  \"remainingUTXOs\": xxx               (numeric) Number of UTXOs still available for merging.\n"
            "  \"remainingTransparentValue\": xxx    (numeric) Value of UTXOs still available for merging.\n"
            "  \"remainingNotes\": xxx               (numeric) Number of notes still available for merging.\n"
            "  \"remainingShieldedValue\": xxx       (numeric) Value of notes still available for merging.\n"
            "  \"mergingUTXOs\": xxx                 (numeric) Number of UTXOs being merged.\n"
            "  \"mergingTransparentValue\": xxx      (numeric) Value of UTXOs being merged.\n"
            "  \"mergingNotes\": xxx                 (numeric) Number of notes being merged.\n"
            "  \"mergingShieldedValue\": xxx         (numeric) Value of notes being merged.\n"
            "  \"opid\": xxx          (string) An operationid to pass to z_getoperationstatus to get the result of the operation.\n"
            "}\n"
            "\nExamples:\n"
            + HelpExampleCli("z_mergetoaddress", "'[\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\"]' zs1aW34Gj9FrnGUEf833ywDVL62NWXBM81u6EQnM6VR45eYnXhwztecW1SjxA7JrmAXKJhxhj3vDNEpVCQoSvVoSpmbhtjf")
            + HelpExampleRpc("z_mergetoaddress", "[\"RD6GgnrMpPaTSMn8vai6yiGA7mN4QGPV\"], \"zs1aW34Gj9FrnGUEf833ywDVL62NWXBM81u6EQnM6VR45eYnXhwztecW1SjxA7JrmAXKJhxhj3vDNEpVCQoSvVoSpmbhtjf\"")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    // Guard against building shielded transactions before the chain is fully synced;
    // sending while behind the tip can leak metadata usable for linkability analysis.
    THROW_IF_SYNCING(HUSH_INSYNC);

    bool useAnyUTXO    = false;
    bool useAnySapling = false;
    std::set<CTxDestination> taddrs = {};
    std::set<libzcash::PaymentAddress> zaddrs = {};

    UniValue addresses = params[0].get_array();
    if (addresses.size()==0)
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, fromaddresses array is empty.");

    // Keep track of addresses
    std::set<std::string> setAddress;

    // Sources
    for (const UniValue& o : addresses.getValues()) {
        if (!o.isStr())
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected string");

        std::string address = o.get_str();

        if (address == "ANY_TADDR") {
            useAnyUTXO = true;
        } else if (address == "ANY_ZADDR" || address == "ANY_SAPLING") {
            useAnySapling = true;
        } else if (address == "*") {
            useAnyUTXO = useAnySapling = true;
        } else {
            CTxDestination taddr = DecodeDestination(address);
            if (IsValidDestination(taddr)) {
                taddrs.insert(taddr);
            } else {
                auto zaddr = DecodePaymentAddress(address);
                if (IsValidPaymentAddress(zaddr)) {
                    zaddrs.insert(zaddr);
                } else {
                    throw JSONRPCError(RPC_INVALID_PARAMETER, string("Unknown address format: ") + address);
                }
            }
        }

        if (setAddress.count(address))
            throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, duplicated address: ") + address);
        setAddress.insert(address);
    }

    if (useAnyUTXO && taddrs.size() > 0) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot specify specific t-addrs when using \"ANY_TADDR\"");
    }
    if ((useAnySapling) && zaddrs.size() > 0) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot specify specific z-addrs when using \"ANY_SAPLING\" or \"ANY_ZADDR\"");
    }

    const int nextBlockHeight   = chainActive.Height() + 1;
    const bool overwinterActive = nextBlockHeight >=1 ? true : false; // NetworkUpgradeActive(nextBlockHeight, Params().GetConsensus(), Consensus::UPGRADE_OVERWINTER);

    // Validate the destination address
    auto destaddress = params[1].get_str();
    bool isToSaplingZaddr = false;
    CTxDestination taddr = DecodeDestination(destaddress);
    if (!IsValidDestination(taddr)) {
        auto decodeAddr = DecodePaymentAddress(destaddress);
        if (IsValidPaymentAddress(decodeAddr)) {
            if (boost::get<libzcash::SaplingPaymentAddress>(&decodeAddr) != nullptr) {
                isToSaplingZaddr = true;
            } else {
                throw JSONRPCError(RPC_INVALID_PARAMETER, "Only Sapling zaddrs allowed!");
            }
        } else {
            throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, unknown address format: ") + destaddress );
        }
    }

    // Convert fee from currency format to puposhis
    CAmount nFee = SHIELD_COINBASE_DEFAULT_MINERS_FEE;
    if (params.size() > 2) {
        if (params[2].get_real() == 0.0) {
            nFee = 0;
        } else {
            nFee = AmountFromValue( params[2] );
        }
    }

    int nUTXOLimit = MERGE_TO_ADDRESS_DEFAULT_TRANSPARENT_LIMIT;
    if (params.size() > 3) {
        nUTXOLimit = params[3].get_int();
        if (nUTXOLimit < 0) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Limit on maximum number of UTXOs cannot be negative");
        }
    }

    int saplingNoteLimit = MERGE_TO_ADDRESS_DEFAULT_SAPLING_LIMIT;
    if (params.size() > 4) {
        int nNoteLimit = params[4].get_int();
        if (nNoteLimit < 0) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Limit on maximum number of notes cannot be negative");
        }
        saplingNoteLimit = nNoteLimit;
    }

    CAmount maximum_utxo_size;
    if (params.size() > 5) {
      maximum_utxo_size = AmountFromValue( params[5] );
      if (maximum_utxo_size < 10) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Maximum size must be bigger than 0.00000010.");
      }
    } else {
      maximum_utxo_size = 0;
    }

    std::string memo;
    if (params.size() > 6) {
        memo = params[6].get_str();
        if (!isToSaplingZaddr) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Memo can not be used with a taddr.  It can only be used with a zaddr.");
        } else if (!IsHex(memo)) {
            //TODO: this sux, would be nice to accept in utf8
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected memo data in hexadecimal format.");
        }
        if (memo.length() > HUSH_MEMO_SIZE*2) {
            throw JSONRPCError(RPC_INVALID_PARAMETER,  strprintf("Invalid parameter, size of memo is larger than maximum allowed %d", HUSH_MEMO_SIZE ));
        }
    }

    MergeToAddressRecipient recipient(destaddress, memo);

    // Prepare to get UTXOs and notes
    std::vector<MergeToAddressInputUTXO> utxoInputs;
    std::vector<MergeToAddressInputSaplingNote> saplingNoteInputs;
    CAmount mergedUTXOValue    = 0;
    CAmount mergedNoteValue    = 0;
    CAmount remainingUTXOValue = 0;
    CAmount remainingNoteValue = 0;
    size_t utxoCounter         = 0;
    size_t noteCounter         = 0;
    bool maxedOutUTXOsFlag     = false;
    bool maxedOutNotesFlag     = false;
    size_t mempoolLimit        = (nUTXOLimit != 0) ? nUTXOLimit : (overwinterActive ? 0 : (size_t)GetArg("-mempooltxinputlimit", 0));
    unsigned int max_tx_size = MAX_TX_SIZE_AFTER_SAPLING;
    size_t estimatedTxSize = 200;  // tx overhead + wiggle room

    if (isToSaplingZaddr) {
        estimatedTxSize += OUTPUTDESCRIPTION_SIZE;
    }

    if (useAnyUTXO || taddrs.size() > 0) {
        // Get available utxos
        vector<COutput> vecOutputs;
        pwalletMain->AvailableCoins(vecOutputs, true, NULL, false, maximum_utxo_size != 0 ? true : false);

        // Find unspent utxos and update estimated size
        for (const COutput& out : vecOutputs) {
            if (!out.fSpendable) {
                continue;
            }

            CScript scriptPubKey = out.tx->vout[out.i].scriptPubKey;

            CTxDestination address;
            if (!ExtractDestination(scriptPubKey, address)) {
                continue;
            }
            // If taddr is not wildcard "*", filter utxos
            if (taddrs.size() > 0 && !taddrs.count(address)) {
                continue;
            }

            CAmount nValue = out.tx->vout[out.i].nValue;

            if (maximum_utxo_size != 0) {
                if (nValue > maximum_utxo_size)
                    continue;
                if (nValue == 10000 && out.tx->vout[out.i].scriptPubKey.size() == 35)
                    continue;
            }

            utxoCounter++;
            if (!maxedOutUTXOsFlag) {
                size_t increase = (boost::get<CScriptID>(&address) != nullptr) ? CTXIN_SPEND_P2SH_SIZE : CTXIN_SPEND_DUST_SIZE;
                if (estimatedTxSize + increase >= max_tx_size ||
                    (mempoolLimit > 0 && utxoCounter > mempoolLimit))
                {
                    maxedOutUTXOsFlag = true;
                } else {
                    estimatedTxSize += increase;
                    COutPoint utxo(out.tx->GetHash(), out.i);
                    utxoInputs.emplace_back(utxo, nValue, scriptPubKey);
                    mergedUTXOValue += nValue;
                }
            }

            if (maxedOutUTXOsFlag) {
                remainingUTXOValue += nValue;
            }
        }
    }

    if (useAnySapling || zaddrs.size() > 0) {
        // Get available notes
        std::vector<SaplingNoteEntry> saplingEntries;
        pwalletMain->GetFilteredNotes(saplingEntries, zaddrs);

        for (const SaplingNoteEntry& entry : saplingEntries) {
            noteCounter++;
            CAmount nValue = entry.note.value();
            if (!maxedOutNotesFlag) {
                size_t increase = SPENDDESCRIPTION_SIZE;
                if (estimatedTxSize + increase >= max_tx_size ||
                    (saplingNoteLimit > 0 && noteCounter > saplingNoteLimit))
                {
                    maxedOutNotesFlag = true;
                } else {
                    estimatedTxSize += increase;
                    libzcash::SaplingExtendedSpendingKey extsk;
                    if (!pwalletMain->GetSaplingExtendedSpendingKey(entry.address, extsk)) {
                        throw JSONRPCError(RPC_INVALID_PARAMETER, "Could not find spending key for payment address.");
                    }
                    saplingNoteInputs.emplace_back(entry.op, entry.note, nValue, extsk.expsk);
                    mergedNoteValue += nValue;
                }
            }

            if (maxedOutNotesFlag) {
                remainingNoteValue += nValue;
            }
        }
    }

    size_t numUtxos = utxoInputs.size();
    size_t numNotes = saplingNoteInputs.size();

    if (numUtxos < 2 && numNotes == 0) {
        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Could not find any funds to merge.");
    }
    
    // Sanity check: Don't do anything if:
    // - We only have one from address
    // - It's equal to toaddress
    // - The address only contains a single UTXO or note
    if (setAddress.size() == 1 && setAddress.count(destaddress) && (numUtxos + numNotes) == 1) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Destination address is also the only source address, and all its funds are already merged.");
    }

    CAmount mergedValue = mergedUTXOValue + mergedNoteValue;
    if (mergedValue < nFee) {
        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS,
                           strprintf("Insufficient funds, have %s, which is less than miners fee %s",
                                     FormatMoney(mergedValue), FormatMoney(nFee)));
    }

    // Check that the user specified fee is sane (if too high, it can result in error -25 absurd fee)
    CAmount netAmount = mergedValue - nFee;
    if (nFee > netAmount) {
        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Fee %s is greater than the net amount to be shielded %s", FormatMoney(nFee), FormatMoney(netAmount)));
    }

    // Keep record of parameters in context object
    UniValue contextInfo(UniValue::VOBJ);
    contextInfo.push_back(Pair("fromaddresses", params[0]));
    contextInfo.push_back(Pair("toaddress", params[1]));
    contextInfo.push_back(Pair("fee", ValueFromAmount(nFee)));

    // Contextual transaction we will build on
    CMutableTransaction contextualTx; //= CreateNewContextualCMutableTransaction( Params().GetConsensus(), nextBlockHeight);

    // Builder (used if zaddrs are involved)
    boost::optional<TransactionBuilder> builder;
    if (isToSaplingZaddr || saplingNoteInputs.size() > 0) {
        builder = TransactionBuilder(Params().GetConsensus(), nextBlockHeight, pwalletMain);
    } else {
        contextualTx.nExpiryHeight = 0; // set non z-tx to have no expiry height.
    }

    // Create operation and add to global queue
    std::shared_ptr<AsyncRPCQueue> q = getAsyncRPCQueue();
    std::shared_ptr<AsyncRPCOperation> operation(
         new AsyncRPCOperation_mergetoaddress(builder, contextualTx, utxoInputs, saplingNoteInputs, recipient, nFee, contextInfo) );
    if (!q->addOperation(operation)) {
        throw JSONRPCError(RPC_INTERNAL_ERROR,
            "Async RPC queue is shutting down; the operation was not queued");
    }
    AsyncRPCOperationId operationId = operation->getId();

    // Return continuation information
    UniValue o(UniValue::VOBJ);
    o.push_back(Pair("remainingUTXOs", static_cast<uint64_t>(utxoCounter - numUtxos)));
    o.push_back(Pair("remainingTransparentValue", ValueFromAmount(remainingUTXOValue)));
    o.push_back(Pair("remainingNotes", static_cast<uint64_t>(noteCounter - numNotes)));
    o.push_back(Pair("remainingShieldedValue", ValueFromAmount(remainingNoteValue)));
    o.push_back(Pair("mergingUTXOs", static_cast<uint64_t>(numUtxos)));
    o.push_back(Pair("mergingTransparentValue", ValueFromAmount(mergedUTXOValue)));
    o.push_back(Pair("mergingNotes", static_cast<uint64_t>(numNotes)));
    o.push_back(Pair("mergingShieldedValue", ValueFromAmount(mergedNoteValue)));
    o.push_back(Pair("opid", operationId));
    return o;
}

UniValue z_listoperationids(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    if (!EnsureWalletIsAvailable(fHelp))
        return NullUniValue;

    if (fHelp || params.size() > 1)
        throw runtime_error(
            "z_listoperationids\n"
            "\nReturns the list of operation ids currently known to the wallet.\n"
            "\nArguments:\n"
            "1. \"status\"         (string, optional) Filter result by the operation's state e.g. \"success\".\n"
            "\nResult:\n"
            "[                     (json array of string)\n"
            "  \"operationid\"       (string) an operation id belonging to the wallet\n"
            "  ,...\n"
            "]\n"
            "\nExamples:\n"
            + HelpExampleCli("z_listoperationids", "")
            + HelpExampleRpc("z_listoperationids", "")
        );

    LOCK2(cs_main, pwalletMain->cs_wallet);

    std::string filter;
    bool useFilter = false;
    if (params.size()==1) {
        filter = params[0].get_str();
        useFilter = true;
    }

    UniValue ret(UniValue::VARR);
    std::shared_ptr<AsyncRPCQueue> q = getAsyncRPCQueue();
    std::vector<AsyncRPCOperationId> ids = q->getAllOperationIds();
    for (auto id : ids) {
        std::shared_ptr<AsyncRPCOperation> operation = q->getOperationForId(id);
        if (!operation) {
            continue;
        }
        std::string state = operation->getStateAsString();
        if (useFilter && filter.compare(state)!=0)
            continue;
        ret.push_back(id);
    }

    return ret;
}


#include "script/sign.h"
int32_t decode_hex(uint8_t *bytes,int32_t n,char *hex);
extern std::string NOTARY_PUBKEY;

int32_t hush_notaryvin(CMutableTransaction &txNew,uint8_t *notarypub33, void *pTr)
{
    set<CBitcoinAddress> setAddress; uint8_t *script,utxosig[128]; uint256 utxotxid; uint64_t utxovalue; int32_t i,siglen=0,nMinDepth = 0,nMaxDepth = 9999999; vector<COutput> vecOutputs; uint32_t utxovout,eligible,earliest = 0; CScript best_scriptPubKey; bool fNegative,fOverflow;
    bool signSuccess; SignatureData sigdata; uint64_t txfee; uint8_t *ptr;
    auto consensusBranchId = CurrentEpochBranchId(chainActive.Height() + 1, Params().GetConsensus());
    if (!EnsureWalletIsAvailable(0))
        return 0;

    assert(pwalletMain != NULL);
    const CKeyStore& keystore = *pwalletMain;
    LOCK2(cs_main, pwalletMain->cs_wallet);
    utxovalue = 0;
    memset(&utxotxid,0,sizeof(utxotxid));
    memset(&utxovout,0,sizeof(utxovout));
    memset(utxosig,0,sizeof(utxosig));
    pwalletMain->AvailableCoins(vecOutputs, false, NULL, true);
    BOOST_FOREACH(const COutput& out, vecOutputs)
    {
        if ( out.nDepth < nMinDepth || out.nDepth > nMaxDepth )
            continue;
        if ( setAddress.size() )
        {
            CTxDestination address;
            if (!ExtractDestination(out.tx->vout[out.i].scriptPubKey, address))
                continue;
            if (!setAddress.count(address))
                continue;
        }
        CAmount nValue = out.tx->vout[out.i].nValue;
        if ( nValue != 10000 )
            continue;
        const CScript& pk = out.tx->vout[out.i].scriptPubKey;
        CTxDestination address;
        if (ExtractDestination(out.tx->vout[out.i].scriptPubKey, address))
        {
            //entry.push_back(Pair("address", CBitcoinAddress(address).ToString()));
            //if (pwalletMain->mapAddressBook.count(address))
            //    entry.push_back(Pair("account", pwalletMain->mapAddressBook[address].name));
        }
        script = (uint8_t *)&out.tx->vout[out.i].scriptPubKey[0];
        if ( out.tx->vout[out.i].scriptPubKey.size() != 35 || script[0] != 33 || script[34] != OP_CHECKSIG || memcmp(notarypub33,script+1,33) != 0 )
        {
            continue;
        }
        utxovalue = (uint64_t)nValue;
        //decode_hex((uint8_t *)&utxotxid,32,(char *)out.tx->GetHash().GetHex().c_str());
        utxotxid = out.tx->GetHash();
        utxovout = out.i;
        best_scriptPubKey = out.tx->vout[out.i].scriptPubKey;

        txNew.vin.resize(1);
        txNew.vout.resize((pTr!=0)+1);
        txfee = utxovalue / 2;
        //for (i=0; i<32; i++)
        //    ((uint8_t *)&revtxid)[i] = ((uint8_t *)&utxotxid)[31 - i];
        txNew.vin[0].prevout.hash = utxotxid; //revtxid;
        txNew.vin[0].prevout.n = utxovout;
        txNew.vout[0].nValue = utxovalue - txfee;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex(CRYPTO555_PUBSECPSTR) << OP_CHECKSIG;
        if ( pTr != 0 )
        {
            void **p = (void**)pTr;
            txNew.vout[1].nValue = 0;
            txNew.vout[1].scriptPubKey = *(CScript*)p[0];
            txNew.nLockTime = (uint32_t)(unsigned long long)p[1];
        }
        CTransaction txNewConst(txNew);
        signSuccess = ProduceSignature(TransactionSignatureCreator(&keystore, &txNewConst, 0, utxovalue, SIGHASH_ALL), best_scriptPubKey, sigdata, consensusBranchId);
        if (!signSuccess)
            LogPrintf("notaryvin failed to create signature\n");
        else
        {
            UpdateTransaction(txNew,0,sigdata);
            ptr = (uint8_t *)&sigdata.scriptSig[0];
            siglen = sigdata.scriptSig.size();
            for (i=0; i<siglen; i++)
                utxosig[i] = ptr[i];
            break;
        }
    }
    return(siglen);
}

int32_t ensure_CCrequirements(uint8_t evalcode) {
    return -1;
}

bool pubkey2addr(char *destaddr,uint8_t *pubkey33);

UniValue setpubkey(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    UniValue result(UniValue::VOBJ);
    if ( fHelp || params.size() > 1 )
        throw runtime_error(
        "setpubkey\n"
        "\nSets the -pubkey if the daemon was not started with it, if it was already set, it returns the pubkey, and its Raddress.\n"
        "\nArguments:\n"
        "1. \"pubkey\"         (string) pubkey to set.\n"
        "\nResult:\n"
        "  {\n"
        "    \"pubkey\" : \"pubkey\",     (string) The pubkey\n"
        "    \"ismine\" : \"true/false\",     (bool)\n"
        "    \"R-address\" : \"R address\",     (string) The pubkey\n"
        "  }\n"
        "\nExamples:\n"
        + HelpExampleCli("setpubkey", "0420597468703c1c5c8465dd6d43acaae697df9df30bed21494d193412a1ea1987")
        + HelpExampleRpc("setpubkey", "0420597468703c1c5c8465dd6d43acaae697df9df30bed21494d193412a1ea1987")
      );

    LOCK2(cs_main, pwalletMain ? &pwalletMain->cs_wallet : NULL);

    char Raddress[64];
    uint8_t pubkey33[33];
    if ( NOTARY_PUBKEY33[0] == 0 ) {
        if (strlen(params[0].get_str().c_str()) == 66) {
            decode_hex(pubkey33,33,(char *)params[0].get_str().c_str());
            pubkey2addr((char *)Raddress,(uint8_t *)pubkey33);
            CBitcoinAddress address(Raddress);
            bool isValid = address.IsValid();
            if (isValid) {
                CTxDestination dest = address.Get();
                isminetype mine = pwalletMain ? IsMine(*pwalletMain, dest) : ISMINE_NO;
                if ( mine == ISMINE_NO )  {
                    result.push_back(Pair("WARNING", "privkey for this pubkey is not imported to wallet!"));
                } else {
                    result.push_back(Pair("ismine", "true"));
                }
                NOTARY_PUBKEY = params[0].get_str();
                decode_hex(NOTARY_PUBKEY33,33,(char *)NOTARY_PUBKEY.c_str());
                USE_EXTERNAL_PUBKEY = 1;
                NOTARY_ADDRESS = address.ToString();
            } else {
                result.push_back(Pair("error", "pubkey entered is invalid."));
            }
        } else {
            result.push_back(Pair("error", "pubkey is wrong length, must be 66 char hex string."));
        }
    } else {
        if ( NOTARY_ADDRESS.empty() ) { 
          pubkey2addr((char *)Raddress,(uint8_t *)NOTARY_PUBKEY33);
          NOTARY_ADDRESS.assign(Raddress);
        }
        result.push_back(Pair("error", "Can only set pubkey once, to change it you need to restart your daemon."));
    }
    if ( NOTARY_PUBKEY33[0] != 0 && !NOTARY_ADDRESS.empty() ) {
        result.push_back(Pair("address", NOTARY_ADDRESS));
        result.push_back(Pair("pubkey", NOTARY_PUBKEY));
    }
    return result;
}

extern UniValue dumpprivkey(const UniValue& params, bool fHelp, const CPubKey& mypk); // in rpcdump.cpp
extern UniValue convertpassphrase(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue importprivkey(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue importaddress(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue dumpwallet(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue importwallet(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue z_exportkey(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue z_exportmnemonic(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue z_importkey(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue z_exportviewingkey(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue z_importviewingkey(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue z_exportwallet(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue z_importwallet(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue rescan(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue getrescaninfo(const UniValue& params, bool fHelp, const CPubKey& mypk);
extern UniValue abortrescan(const UniValue& params, bool fHelp, const CPubKey& mypk);


static const CRPCCommand commands[] =
{ //  category              name                        actor (function)           okSafeMode
    //  --------------------- ------------------------    -----------------------    ----------
    { "rawtransactions",    "fundrawtransaction",       &fundrawtransaction,       false },
    { "hidden",             "resendwallettransactions", &resendwallettransactions, true  },
    { "wallet",             "addmultisigaddress",       &addmultisigaddress,       true  },
    { "wallet",             "backupwallet",             &backupwallet,             true  },
    { "wallet",             "dumpprivkey",              &dumpprivkey,              true  },
    { "wallet",             "dumpwallet",               &dumpwallet,               true  },
    { "wallet",             "encryptwallet",            &encryptwallet,            true  },
    { "wallet",             "getaccountaddress",        &getaccountaddress,        true  },
    { "wallet",             "getaccount",               &getaccount,               true  },
    { "wallet",             "getalldata",               &getalldata,               true  },
    { "wallet",             "getaddressesbyaccount",    &getaddressesbyaccount,    true  },
    { "wallet",             "listaddresses",            &listaddresses        ,    true  },
    { "wallet",             "getbalance",               &getbalance,               false },
    { "wallet",             "getnewaddress",            &getnewaddress,            true  },
    { "wallet",             "getrawchangeaddress",      &getrawchangeaddress,      true  },
    { "wallet",             "getreceivedbyaccount",     &getreceivedbyaccount,     false },
    { "wallet",             "getreceivedbyaddress",     &getreceivedbyaddress,     false },
    { "wallet",             "gettransaction",           &gettransaction,           false },
    { "wallet",             "getunconfirmedbalance",    &getunconfirmedbalance,    false },
    { "wallet",             "getwalletinfo",            &getwalletinfo,            false },
    { "wallet",             "convertpassphrase",        &convertpassphrase,        true  },
    { "wallet",             "importprivkey",            &importprivkey,            true  },
    { "wallet",             "importwallet",             &importwallet,             true  },
    { "wallet",             "importaddress",            &importaddress,            true  },
    { "wallet",             "keypoolrefill",            &keypoolrefill,            true  },
    { "wallet",             "listaccounts",             &listaccounts,             false },
    { "wallet",             "listaddressgroupings",     &listaddressgroupings,     false },
    { "wallet",             "listlockunspent",          &listlockunspent,          false },
    { "wallet",             "listreceivedbyaccount",    &listreceivedbyaccount,    false },
    { "wallet",             "listreceivedbyaddress",    &listreceivedbyaddress,    false },
    { "wallet",             "listsinceblock",           &listsinceblock,           false },
    { "wallet",             "listtransactions",         &listtransactions,         false },
    { "wallet",             "listunspent",              &listunspent,              false },
    { "wallet",             "lockunspent",              &lockunspent,              true  },
    { "wallet",             "move",                     &movecmd,                  false },
    { "wallet",             "rescan",                   &rescan,                   false },
    { "wallet",             "getrescaninfo",            &getrescaninfo,            true  },
    { "wallet",             "abortrescan",              &abortrescan,              false },
    { "wallet",             "sendfrom",                 &sendfrom,                 false },
    { "wallet",             "sendmany",                 &sendmany,                 false },
    { "wallet",             "sendtoaddress",            &sendtoaddress,            false },
    { "wallet",             "setaccount",               &setaccount,               true  },
    { "wallet",             "settxfee",                 &settxfee,                 true  },
    { "wallet",             "signmessage",              &signmessage,              true  },
    { "wallet",             "walletlock",               &walletlock,               true  },
    { "wallet",             "walletpassphrasechange",   &walletpassphrasechange,   true  },
    { "wallet",             "walletpassphrase",         &walletpassphrase,         true  },
    { "wallet",             "z_listreceivedbyaddress",  &z_listreceivedbyaddress,  false },
    { "wallet",             "z_listunspent",            &z_listunspent,            false },
    { "wallet",             "z_getbalance",             &z_getbalance,             false },
    { "wallet",             "z_getbalances",            &z_getbalances,            false },
    { "wallet",             "z_getstats",               &z_getstats,               true  },
    { "wallet",             "z_anonsettxdelta",         &z_anonsettxdelta,         true  },
    { "wallet",             "z_anonsetblockdelta",      &z_anonsetblockdelta,      true  },
    { "wallet",             "z_gettotalbalance",        &z_gettotalbalance,        false },
    { "wallet",             "z_mergetoaddress",         &z_mergetoaddress,         false },
    { "wallet",             "z_sweepstatus",            &z_sweepstatus,            true  },
    { "wallet",             "z_autoshieldstatus",       &z_autoshieldstatus,       true  },
    { "wallet",             "z_consolidationstatus",    &z_consolidationstatus,    true  },
    { "wallet",             "z_sendmany",               &z_sendmany,               false },
    { "wallet",             "z_shieldcoinbase",         &z_shieldcoinbase,         false },
    { "wallet",             "z_getoperationstatus",     &z_getoperationstatus,     true  },
    { "wallet",             "z_getoperationresult",     &z_getoperationresult,     true  },
    { "wallet",             "z_listoperationids",       &z_listoperationids,       true  },
    { "wallet",             "z_getnewaddress",          &z_getnewaddress,          true  },
    { "wallet",             "z_listaddresses",          &z_listaddresses,          true  },
    { "wallet",             "z_exportkey",              &z_exportkey,              true  },
    { "wallet",             "z_exportmnemonic",         &z_exportmnemonic,         true  },
    { "wallet",             "z_importkey",              &z_importkey,              true  },
    { "wallet",             "z_exportviewingkey",       &z_exportviewingkey,       true  },
    { "wallet",             "z_importviewingkey",       &z_importviewingkey,       true  },
    { "wallet",             "z_exportwallet",           &z_exportwallet,           true  },
    { "wallet",             "z_importwallet",           &z_importwallet,           true  },
    { "wallet",             "z_viewtransaction",        &z_viewtransaction,        true  },
    { "wallet",             "z_getinfo",                &z_getinfo,                true  },
    { "wallet",             "z_listsentbyaddress",      &z_listsentbyaddress,      true  },
    { "wallet",             "z_listreceivedbyaddress",  &z_listreceivedbyaddress,  true  },
    { "wallet",             "z_getnotescount",          &z_getnotescount,          false }
};


void RegisterWalletRPCCommands(CRPCTable &tableRPC)
{
    for (unsigned int vcidx = 0; vcidx < ARRAYLEN(commands); vcidx++)
        tableRPC.appendCommand(commands[vcidx].name, &commands[vcidx]);
}

UniValue opreturn_burn(const UniValue& params, bool fHelp, const CPubKey& mypk)
{
    std::vector<uint8_t> vHexStr; CScript opret; CAmount txfee = 10000;CPubKey myPubkey;
    if (fHelp || (params.size() < 2) || (params.size() > 4) )
    {
        throw runtime_error(
        "opreturn_burn burn_amount hexstring ( txfee )\n"
        "\nBurn the specified amount of coins via OP_RETURN. Returns unsigned transaction raw hex that must then be signed via signrawtransaction and broadcast via sendrawtransaction rpc\n"
        "\nArguments:\n"
        "1. \"burn_amount\"       (numeric, required) Amount of coins to burn.\n"
        "2. \"hexstring\"         (string, required) Hex string to include in OP_RETURN data.\n"
        "3. \"txfee\"             (numeric, optional, default=0.0001) Transaction fee.\n"
        "\nResult:\n"
        "  {\n"
        "    \"hex\" : \"hexstring\",     (string) raw hex of transaction \n"
        "  }\n"
        "\nExamples:\n"
        "\nBurn 10 coins with OP_RETURN data \"deadbeef\"\n"
        + HelpExampleCli("opreturn_burn", "\"10\" \"deadbeef\"") 
        + HelpExampleRpc("opreturn_burn", "\"10\", \"deadbeef\"") +
        "\nBurn 10 coins with OP_RETURN data \"deadbeef\" with 0.00005 txfee\n"
        + HelpExampleCli("opreturn_burn", "\"10\" \"deadbeef\" \"0.00005\"") 
        + HelpExampleRpc("opreturn_burn", "\"10\", \"deadbeef\", 0.00005")
      );
    }
    UniValue ret(UniValue::VOBJ);

	CAmount nAmount = AmountFromValue(params[0]);
    vHexStr = ParseHex(params[1].get_str());
    if ( vHexStr.size() == 0 )
        throw JSONRPCError(RPC_TYPE_ERROR, "hexstring is not valid.");

    if ( params.size() > 2 )
        txfee = AmountFromValue(params[2]);

    if ( !MoneyRange(nAmount) || !MoneyRange(txfee) || !MoneyRange(nAmount + txfee) )
        throw JSONRPCError(RPC_TYPE_ERROR, "burn_amount + txfee out of range.");

    if (!EnsureWalletIsAvailable(fHelp))
        throw JSONRPCError(RPC_TYPE_ERROR, "wallet is locked or unavailable.");
    EnsureWalletIsUnlocked();
    CReserveKey reservekey(pwalletMain);
    if (!reservekey.GetReservedKey(myPubkey))
    {
        throw JSONRPCError(RPC_TYPE_ERROR, "keypool error.");
    }

	CMutableTransaction mtx = CreateNewContextualCMutableTransaction(Params().GetConsensus(), hush_nextheight());

	int64_t normalInputs = AddNormalinputs(mtx, myPubkey, nAmount+txfee, 60);
	if (normalInputs < nAmount+txfee)
		throw runtime_error("insufficient funds\n");
    
	opret << OP_RETURN << E_MARSHAL(ss << vHexStr);
    
    mtx.vout.push_back(CTxOut(nAmount,opret));
    // Return the unspent surplus (selected inputs - burn amount - txfee) as change to a
    // wallet-owned address; without this the entire surplus is silently paid as miner fee.
    CAmount change = normalInputs - nAmount - txfee;
    // Only emit change if it clears the dust threshold; a sub-dust output would make the tx
    // non-standard (unrelayable). Sub-dust surplus is folded into the fee (standard wallet behavior).
    CTxOut changeOut(change, GetScriptForDestination(myPubkey.GetID()));
    if ( change > 0 && !changeOut.IsDust(::minRelayTxFee) )
        mtx.vout.push_back(changeOut);
    ret.push_back(Pair("hex", EncodeHexTx(mtx)));
	return(ret);
}
