// Copyright (c) 2009-2010 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
// What happened to the SuperNET devs, who were dedicated to privacy???
// Did they go the way of the dodo when they embraced KYC?
/******************************************************************************
 * 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.            *
 *                                                                            *
 ******************************************************************************/
#if defined(HAVE_CONFIG_H)
#include "config/bitcoin-config.h"
#endif

#include "init.h"
#include "crypto/common.h"
#include "primitives/block.h"
#include "addrman.h"
#include "amount.h"
#include "checkpoints.h"
#include "compat/sanity.h"
#include "consensus/upgrades.h"
#include "consensus/validation.h"
#include "httpserver.h"
#include "httprpc.h"
#include "key.h"
#include "notarizationdb.h"
#include "stratum.h"

#ifdef ENABLE_MINING
#include "key_io.h"
#endif
#include "main.h"
#include "metrics.h"
#include "pow.h"
#include "miner.h"
#include "net.h"
#include "rpc/server.h"
#include "rpc/register.h"
#include "script/standard.h"
#include "scheduler.h"
#include "txdb.h"
#include "torcontrol.h"
#include "ui_interface.h"
#include "util.h"
#include "utilmoneystr.h"
#include "validationinterface.h"
#ifdef ENABLE_WALLET
#include "wallet/wallet.h"
#include "wallet/walletdb.h"
#include "wallet/asyncrpcoperation_saplingconsolidation.h"
#include "wallet/asyncrpcoperation_autoshieldcoinbase.h"
#include "wallet/asyncrpcoperation_sweep.h"
#endif
#include <stdint.h>
#include <stdio.h>

#ifndef _WIN32
#include <signal.h>
#endif

#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/algorithm/string/replace.hpp>
#include <boost/algorithm/string/split.hpp>
#include <boost/bind.hpp>
#include <boost/filesystem.hpp>
#include <boost/function.hpp>
#include <boost/interprocess/sync/file_lock.hpp>
#include <boost/thread.hpp>
#include <chrono>
#include <wolfssl/options.h>
#include <wolfssl/ssl.h>
#include <thread>
#include "librustzcash.h"

using namespace std;

#include "hush_defs.h"
static const bool DEFAULT_STRATUM_ENABLE = false;
extern bool hush_dailysnapshot(int32_t height);
extern int32_t HUSH_LOADINGBLOCKS;
extern char SMART_CHAIN_SYMBOL[];
extern int32_t HUSH_SNAPSHOT_INTERVAL;
extern void hush_init(int32_t height);

#ifdef ENABLE_WALLET
CWallet* pwalletMain = NULL;
#endif
bool fFeeEstimatesInitialized = false;

#ifdef WIN32
// Win32 LevelDB doesn't use file descriptors, and the ones used for
// accessing block files don't count towards the fd_set size limit
// anyway.
#define MIN_CORE_FILEDESCRIPTORS 0
#else
#define MIN_CORE_FILEDESCRIPTORS 150
#endif

/** Used to pass flags to the Bind() function */
enum BindFlags {
    BF_NONE         = 0,
    BF_EXPLICIT     = (1U << 0),
    BF_REPORT_ERROR = (1U << 1),
    BF_ALLOWLIST    = (1U << 2),
};

static const char* FEE_ESTIMATES_FILENAME="fee_estimates.dat";

static const char* DEFAULT_ASMAP_FILENAME="asmap.dat";

// LevelDB read-cache size (bytes) for the notarizations (dPoW) DB. Non-consensus: just the
// in-memory cache the DB is opened with; the value here does not affect validation.
static const size_t NOTARIZATION_DB_CACHE_BYTES = 100 * 1024 * 1024; // 100 MiB

CClientUIInterface uiInterface; // global UI callback dispatcher (declared extern in ui_interface.h)

// Shutdown
//
// Thread management and startup/shutdown:
//
// The network-processing threads are all part of a thread group
// created by AppInit().
//
// A clean exit happens when StartShutdown() or the SIGTERM
// signal handler sets fRequestShutdown, which triggers
// the DetectShutdownThread(), which interrupts the main thread group.
// DetectShutdownThread() then exits, which causes AppInit() to
// continue (it .joins the shutdown thread).
// Shutdown() is then
// called to clean up database connections, and stop other
// threads that should only be stopped after the main network-processing
// threads have exited.
//
// Note that if running -daemon the parent process returns from AppInit2
// before adding any threads to the threadGroup, so .join_all() returns
// immediately and the parent exits from main().

std::atomic<bool> fRequestShutdown(false);

void StartShutdown()
{
    if(fDebug) {
	    fprintf(stderr,"%s: fRequestShutdown=true\n", __FUNCTION__);
    }
    fRequestShutdown = true;
}
bool ShutdownRequested()
{
    return fRequestShutdown;
}

class CCoinsViewErrorCatcher : public CCoinsViewBacked
{
public:
    CCoinsViewErrorCatcher(CCoinsView* view) : CCoinsViewBacked(view) {}
    bool GetCoins(const uint256 &txid, CCoins &coins) const {
        try {
            return CCoinsViewBacked::GetCoins(txid, coins);
        } catch(const std::runtime_error& e) {
            uiInterface.ThreadSafeMessageBox(_("Error reading from database, shutting down."), "", CClientUIInterface::MSG_ERROR);
            LogPrintf("Error reading from database: %s\n", e.what());
            // Starting the shutdown sequence and returning false to the caller would be
            // interpreted as 'entry not found' (as opposed to unable to read data), and
            // could lead to invalid interpretation. Just exit immediately, as we can't
            // continue anyway, and all writes should be atomic.
            abort();
        }
    }
    // Writes do not need similar protection, as failure to write is handled by the caller.
};

CCoinsViewDB *pcoinsdbview = NULL; // global (declared extern in main.h) for UTXO-snapshot dump/load
static CCoinsViewErrorCatcher *pcoinscatcher = NULL;
static boost::scoped_ptr<ECCVerifyHandle> globalVerifyHandle;

void Interrupt(boost::thread_group& threadGroup)
{
    InterruptStratumServer();
    InterruptHTTPServer();
    InterruptHTTPRPC();
    InterruptRPC();
    InterruptREST();
    InterruptTorControl();
    threadGroup.interrupt_all();
}

void Shutdown()
{
    if(fDebug)
	    fprintf(stderr,"%s: start\n", __FUNCTION__);
    LogPrintf("%s: In progress...\n", __func__);
    static CCriticalSection cs_Shutdown;
    TRY_LOCK(cs_Shutdown, lockShutdown);
    if (!lockShutdown)
        return;

    /// Note: Shutdown() must be able to handle cases in which AppInit2() failed part of the way,
    /// for example if the data directory was found to be locked.
    /// Be sure that anything that writes files or flushes caches only does this if the respective
    /// module was initialized.
    static char shutoffstr[128];
    sprintf(shutoffstr,"%s-shutoff","hush");
    RenameThread(shutoffstr);
    mempool.AddTransactionsUpdated(1);

    if(fDebug) {
	    fprintf(stderr,"%s: stopping DragonX HTTP/REST/RPC\n", __FUNCTION__);
    }
    StopHTTPRPC();
    StopREST();
    StopRPC();
    StopStratumServer();
    StopHTTPServer();
#ifdef ENABLE_WALLET
    if (pwalletMain)
        pwalletMain->Flush(false);
#endif
#ifdef ENABLE_MINING
 #ifdef ENABLE_WALLET
    GenerateBitcoins(false, NULL, 0);
 #else
    GenerateBitcoins(false, 0);
 #endif
#endif
    if(fDebug) {
	    fprintf(stderr,"%s: stopping node\n", __FUNCTION__);
    }
    StopNode();
    StopTorControl();
    UnregisterNodeSignals(GetNodeSignals());

    if (fFeeEstimatesInitialized)
    {
        boost::filesystem::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME;
        CAutoFile est_fileout(fopen(est_path.string().c_str(), "wb"), SER_DISK, CLIENT_VERSION);
        if (!est_fileout.IsNull())
            mempool.WriteFeeEstimates(est_fileout);
        else
            LogPrintf("%s: Failed to write fee estimates to %s\n", __func__, est_path.string());
        fFeeEstimatesInitialized = false;
    }

    {
        LOCK(cs_main);
        if (pcoinsTip != NULL) {
            FlushStateToDisk();
        }
	if (pcoinsTip != NULL) {
		delete pcoinsTip;
		pcoinsTip = NULL;
	}
	if (pcoinscatcher != NULL) {
        	delete pcoinscatcher;
        	pcoinscatcher = NULL;
	}
	if (pcoinsdbview != NULL) {
        	delete pcoinsdbview;
        	pcoinsdbview = NULL;
	}
	if (pblocktree != NULL) {
        	delete pblocktree;
        	pblocktree = NULL;
	}
    }
#ifdef ENABLE_WALLET
    if (pwalletMain)
        pwalletMain->Flush(true);
#endif

#ifndef WIN32
    try {
        boost::filesystem::remove(GetPidFile());
    } catch (const boost::filesystem::filesystem_error& e) {
        LogPrintf("%s: Unable to remove pidfile: %s\n", __func__, e.what());
    }
#endif
    UnregisterAllValidationInterfaces();
    RandomXValidatorShutdown(); // release the ~256MB shared RandomX pre-verify cache (was leaked at exit)
#ifdef ENABLE_WALLET
    delete pwalletMain;
    pwalletMain = NULL;
#endif
    globalVerifyHandle.reset();
    ECC_Stop();
    // CNode::NetCleanup();
    LogPrintf("%s: done\n", __func__);
}

// Signal handlers are very limited in what they are allowed to do, so:
#ifndef WIN32
void HandleSIGTERM(int)
{
	fprintf(stderr,"%s\n",__FUNCTION__);
    fRequestShutdown = true;
}

void HandleSIGHUP(int)
{
	fprintf(stderr,"%s\n",__FUNCTION__);
    fReopenDebugLog = true;
}
#else
static BOOL WINAPI consoleCtrlHandler(DWORD dwCtrlType)
{
    fRequestShutdown = true;
    // This signal now sleeps with the fishes
    Sleep(INFINITE);
    return true;
}
#endif

#ifndef WIN32
static void registerSignalHandler(int signal, void(*handler)(int))
{
    struct sigaction sa;
    sa.sa_handler = handler;
    sigemptyset(&sa.sa_mask);
    sa.sa_flags = 0;
    sigaction(signal, &sa, nullptr);
}
#endif

bool static InitError(const std::string &str)
{
    uiInterface.ThreadSafeMessageBox(str, "", CClientUIInterface::MSG_ERROR);
    return false;
}

bool static InitWarning(const std::string &str)
{
    uiInterface.ThreadSafeMessageBox(str, "", CClientUIInterface::MSG_WARNING);
    return true;
}

bool static Bind(const CService &addr, unsigned int flags) {
    if (!(flags & BF_EXPLICIT) && !IsReachable(addr))
        return false;
    std::string strError;
    if (!BindListenPort(addr, strError, (flags & BF_ALLOWLIST) != 0)) {
        if (flags & BF_REPORT_ERROR)
            return InitError(strError);
        return false;
    }
    return true;
}

void OnRPCStopped()
{
    cvBlockChange.notify_all();
    LogPrint("rpc", "RPC stopped.\n");
}

void OnRPCPreCommand(const CRPCCommand& cmd)
{
    // Observe safe mode
    string strWarning = GetWarnings("rpc");
    if (strWarning != "" && !GetBoolArg("-disablesafemode", false) &&
        !cmd.okSafeMode)
        throw JSONRPCError(RPC_FORBIDDEN_BY_SAFE_MODE, string("Safe mode: ") + strWarning);
}

std::string HelpMessage(HelpMessageMode mode)
{
    const bool showDebug = GetBoolArg("-help-debug", false);

    // When adding new options to the categories, please keep and ensure alphabetical ordering.
    // Do not translate _(...) -help-debug options, many technical terms, and only a very small audience, so is unnecessary stress to translators

    string strUsage = HelpMessageGroup(_("Options:"));
    strUsage += HelpMessageOpt("-?", _("This help message"));
    strUsage += HelpMessageOpt("-blocknotify=<cmd>", _("Execute command when the best block changes (%s in cmd is replaced by block hash)"));
    strUsage += HelpMessageOpt("-checkblocks=<n>", strprintf(_("How many blocks to check at startup (default: %u, 0 = all)"), 288));
    strUsage += HelpMessageOpt("-checklevel=<n>", strprintf(_("How thorough the block verification of -checkblocks is (0-4, default: %u)"), 3));
    strUsage += HelpMessageOpt("-clientname=<SomeName>", _("Full node client name, default 'DragonX'"));
    strUsage += HelpMessageOpt("-conf=<file>", strprintf(_("Specify configuration file (default: %s)"), "DRAGONX.conf"));
    if (mode == HMM_BITCOIND)
    {
#if !defined(WIN32)
        strUsage += HelpMessageOpt("-daemon", _("Run in the background as a daemon and accept commands"));
#endif
    }
    strUsage += HelpMessageOpt("-datadir=<dir>", _("Specify data directory (this path cannot use '~')"));
    strUsage += HelpMessageOpt("-exportdir=<dir>", _("Specify directory to be used when exporting data"));
    strUsage += HelpMessageOpt("-dbcache=<n>", strprintf(_("Set database cache size in megabytes (%d to %d). Default: adaptive - uses most free RAM to speed up initial block download (far fewer UTXO flushes to disk) and automatically shrinks if other applications need memory, always leaving a reserve free. Setting a fixed value disables adaptive sizing."), nMinDbCache, nMaxDbCache));
    strUsage += HelpMessageOpt("-loadblock=<file>", _("Imports blocks from external blk000??.dat file") + " " + _("on startup"));
    strUsage += HelpMessageOpt("-maxdebugfilesize=<n>", strprintf(_("Set the max size of the debug.log file (default: %u)"), 15));
    strUsage += HelpMessageOpt("-maxorphantx=<n>", strprintf(_("Keep at most <n> unconnectable transactions in memory (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS));
    strUsage += HelpMessageOpt("-maxreorg=<n>", _("Specify the maximum length of a blockchain re-organization"));
    strUsage += HelpMessageOpt("-mempooltxinputlimit=<n>", _("[DEPRECATED/IGNORED] Set the maximum number of transparent inputs in a transaction that the mempool will accept (default: 0 = no limit applied)"));
    strUsage += HelpMessageOpt("-par=<n>", strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"),
        -(int)boost::thread::hardware_concurrency(), MAX_SCRIPTCHECK_THREADS, DEFAULT_SCRIPTCHECK_THREADS));
    strUsage += HelpMessageOpt("-randomxverifythreads=<n>", strprintf(_("Number of threads for parallel RandomX PoW pre-verification of post-checkpoint blocks during network sync; no effect on reindex (0 = inline only, max %d, default: same as -par)"), MAX_SCRIPTCHECK_THREADS));
#ifndef _WIN32
    strUsage += HelpMessageOpt("-pid=<file>", strprintf(_("Specify pid file (default: %s)"), "hushd.pid"));
#endif
    strUsage += HelpMessageOpt("-txexpirynotify=<cmd>", _("Execute command when transaction expires (%s in cmd is replaced by transaction id)"));
    strUsage += HelpMessageOpt("-prune=<n>", strprintf(_("Reduce storage requirements by pruning (deleting) old blocks. This mode disables wallet support and is incompatible with -txindex. "
            "Warning: Reverting this setting requires re-downloading the entire blockchain. "
            "(default: 0 = disable pruning blocks, >%u = target size in MiB to use for block files)"), MIN_DISK_SPACE_FOR_BLOCK_FILES / 1024 / 1024));
    strUsage += HelpMessageOpt("-reindex", _("Rebuild block chain index from current blk000??.dat files on startup"));
#if !defined(WIN32)
    strUsage += HelpMessageOpt("-sysperms", _("Create new files with system default permissions, instead of umask 077 (only effective with disabled wallet functionality)"));
#endif
    strUsage += HelpMessageOpt("-txindex", strprintf(_("Maintain a full transaction index, used by the getrawtransaction rpc call (default: %u)"), 0));
    strUsage += HelpMessageOpt("-txsend=<cmd>", _("Execute command to send a transaction instead of broadcasting (%s in cmd is replaced by transaction hex)"));
    strUsage += HelpMessageOpt("-addressindex", strprintf(_("Maintain a full address index, used to query for the balance, txids and unspent outputs for addresses (default: %u)"), DEFAULT_ADDRESSINDEX));
    strUsage += HelpMessageOpt("-timestampindex", strprintf(_("Maintain a timestamp index for block hashes, used to query blocks hashes by a range of timestamps (default: %u)"), DEFAULT_TIMESTAMPINDEX));
    strUsage += HelpMessageOpt("-spentindex", strprintf(_("Maintain a full spent index, used to query the spending txid and input index for an outpoint (default: %u)"), DEFAULT_SPENTINDEX));
    strUsage += HelpMessageOpt("-zindex", strprintf(_("Maintain extra statistics about shielded transactions and payments (default: %u)"), 0));
    strUsage += HelpMessageGroup(_("Connection options:"));
    strUsage += HelpMessageOpt("-addnode=<ip>", _("Add a node to connect to and attempt to keep the connection open"));
    strUsage += HelpMessageOpt("-asmap=<file>", strprintf("Specify ASN mapping used for bucketing of the peers (default: %s). Relative paths will be prefixed by the net-specific datadir location.", DEFAULT_ASMAP_FILENAME));
    strUsage += HelpMessageOpt("-banscore=<n>", strprintf(_("Threshold for disconnecting misbehaving peers (default: %u)"), 100));
    strUsage += HelpMessageOpt("-bantime=<n>", strprintf(_("Number of seconds to keep misbehaving peers from reconnecting (default: %u)"), 86400));
    strUsage += HelpMessageOpt("-bind=<addr>", _("Bind to given address and always listen on it. Use [host]:port notation for IPv6"));
    strUsage += HelpMessageOpt("-connect=<ip>", _("Connect only to the specified node(s)"));
    strUsage += HelpMessageOpt("-discover", _("Discover own IP addresses (default: 1 when listening and no -externalip or -proxy)"));
    strUsage += HelpMessageOpt("-dns", _("Allow DNS lookups for -addnode, -seednode and -connect") + " " + _("(default: 1)"));
    strUsage += HelpMessageOpt("-dnsseed", _("Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless -connect)"));
    strUsage += HelpMessageOpt("-externalip=<ip>", _("Specify your own public address"));
    strUsage += HelpMessageOpt("-forcednsseed", strprintf(_("Always query for peer addresses via DNS lookup (default: %u)"), 0));
    strUsage += HelpMessageOpt("-listen", _("Accept connections from outside (default: 1 if no -proxy or -connect)"));
    strUsage += HelpMessageOpt("-listenonion", strprintf(_("Automatically create Tor hidden service (default: %d)"), DEFAULT_LISTEN_ONION));
    strUsage += HelpMessageOpt("-maxconnections=<n>", strprintf(_("Maintain at most <n> connections to peers (default: %u)"), DEFAULT_MAX_PEER_CONNECTIONS));
    strUsage += HelpMessageOpt("-maxreceivebuffer=<n>", strprintf(_("Maximum per-connection receive buffer, <n>*1000 bytes (default: %u)"), 5000));
    strUsage += HelpMessageOpt("-maxsendbuffer=<n>", strprintf(_("Maximum per-connection send buffer, <n>*1000 bytes (default: %u)"), 1000));
    strUsage += HelpMessageOpt("-onion=<ip:port>", strprintf(_("Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: %s)"), "-proxy"));
    strUsage += HelpMessageOpt("-nspv_msg", strprintf(_("Enable NSPV messages processing (default: true when -ac_private=1, otherwise false)")));

    strUsage += HelpMessageOpt("-i2psam=<ip:port>", strprintf(_("I2P SAM proxy to reach I2P peers and accept I2P connections (default: none)")));
    strUsage += HelpMessageOpt("-i2pacceptincoming", strprintf(_("If set and -i2psam is also set then incoming I2P connections are accepted via the SAM proxy. If this is not set but -i2psam is set then only outgoing connections will be made to the I2P network. Ignored if -i2psam is not set. Listening for incoming I2P connections is done through the SAM proxy, not by binding to a local address and port (default: 1)")));
    strUsage += HelpMessageOpt("-onlynet=<net>", _("Only connect to nodes in network <net> (ipv4, ipv6, onion or i2p)"));
    strUsage += HelpMessageOpt("-disableipv4", _("Disable Ipv4 network connections") + " " + strprintf(_("(default: %u)"), DEFAULT_DISABLE_IPV4));
    strUsage += HelpMessageOpt("-disableipv6", _("Disable Ipv6 network connections") + " " + strprintf(_("(default: %u)"), DEFAULT_DISABLE_IPV6));

    strUsage += HelpMessageOpt("-clearnet", _("Enable clearnet connections. Setting to 0 will disable clearnet and use sane defaults for Tor/i2p") + " " + strprintf(_("(default: %u)"), DEFAULT_CLEARNET));

    strUsage += HelpMessageOpt("-permitbaremultisig", strprintf(_("Relay non-P2SH multisig (default: %u)"), 1));
    strUsage += HelpMessageOpt("-peerbloomfilters", strprintf(_("Support filtering of blocks and transaction with Bloom filters (default: %u)"), 1));
    if (showDebug)
        strUsage += HelpMessageOpt("-enforcenodebloom", strprintf("Enforce minimum protocol version to limit use of Bloom filters (default: %u)", 0));
    strUsage += HelpMessageOpt("-port=<port>", strprintf(_("Listen for connections on <port> (default: %u or testnet: %u)"), 55555, 55420));
    strUsage += HelpMessageOpt("-proxy=<ip:port>", _("Connect through SOCKS5 proxy"));
    strUsage += HelpMessageOpt("-proxyrandomize", strprintf(_("Randomize credentials for every proxy connection. This enables Tor stream isolation (default: %u)"), 1));
    strUsage += HelpMessageOpt("-seednode=<ip>", _("Connect to a node to retrieve peer addresses, and disconnect"));
    strUsage += HelpMessageOpt("-timeout=<n>", strprintf(_("Specify connection timeout in milliseconds (minimum: 1, default: %d)"), DEFAULT_CONNECT_TIMEOUT));
    strUsage += HelpMessageOpt("-torcontrol=<ip>:<port>", strprintf(_("Tor control port to use if onion listening enabled (default: %s)"), DEFAULT_TOR_CONTROL));
    strUsage += HelpMessageOpt("-torpassword=<pass>", _("Tor control port password (default: empty)"));
    strUsage += HelpMessageOpt("-tls=<option>", _("Specify TLS usage (default: 1 => enabled and required); Cannot be turned off."));
    strUsage += HelpMessageOpt("-tlsvalidate=<0 or 1>", _("Connect to peers only with valid certificates (default: 0)"));
    strUsage += HelpMessageOpt("-tlskeypath=<path>", _("Full path to a private key"));
    strUsage += HelpMessageOpt("-tlskeypwd=<password>", _("Password for a private key encryption (default: not set, i.e. private key will be stored unencrypted)"));
    strUsage += HelpMessageOpt("-tlscertpath=<path>", _("Full path to a certificate"));
    strUsage += HelpMessageOpt("-tlstrustdir=<path>", _("Full path to a trusted certificates directory"));
    strUsage += HelpMessageOpt("-allowbind=<addr>", _("Bind to given address and allowlist peers connecting to it. Use [host]:port notation for IPv6"));
    strUsage += HelpMessageOpt("-allowlist=<netmask>", _("Allowlist peers connecting from the given netmask or IP address. Can be specified multiple times.") +
        " " + _("Allowlisted peers cannot be DoS banned and their transactions are always relayed, even if they are already in the mempool, useful e.g. for a gateway"));

#ifdef ENABLE_WALLET
    strUsage += HelpMessageGroup(_("Wallet options:"));
    strUsage += HelpMessageOpt("-disablewallet", _("Do not load the wallet and disable wallet RPC calls"));
    strUsage += HelpMessageOpt("-keypool=<n>", strprintf(_("Set key pool size to <n> (default: %u)"), 100));
    strUsage += HelpMessageOpt("-hdtransparent", strprintf(_("Derive transparent addresses from the HD seed so they can be recovered from it (default: %u)"), 1));
    strUsage += HelpMessageOpt("-hdseed=<hex>", _("Restore a fresh/empty wallet from a 32- or 64-byte HD seed hex (the value shown in z_exportwallet's '# HDSeed=' line). WARNING: exposes the seed to your shell history and process list."));
    strUsage += HelpMessageOpt("-mnemonic=<words>", _("Restore/create a fresh/empty wallet from a BIP39 seed phrase, compatible with SilentDragonXLite (English, no passphrase; cross-wallet restore parity is mainnet-only -- testnet/regtest derive a different HD coin_type). WARNING: exposes the phrase to your shell history and process list; prefer DRAGONX.conf with tight permissions."));
    strUsage += HelpMessageOpt("-usemnemonic", strprintf(_("Create new wallets from a fresh BIP39 seed phrase so the 24 words can be exported (z_exportmnemonic) and used in SilentDragonXLite. Set to 0 for a raw random seed with no recovery phrase; existing wallets are never changed (default: %u)"), 1));
    strUsage += HelpMessageOpt("-hdtransparentgaplimit=<n>", strprintf(_("On -mnemonic/-hdseed restore, pre-derive this many HD transparent keys so a rescan can find coinbase paid to them (default: %u)"), 1000));
    strUsage += HelpMessageOpt("-mnemonicsaplinggap=<n>", strprintf(_("On -mnemonic/-hdseed restore, pre-derive this many shielded (Sapling) addresses so a rescan can find notes sent to them (default: %u)"), 100));
    strUsage += HelpMessageOpt("-consolidation", _("Enable auto Sapling note consolidation (default: false)"));
    strUsage += HelpMessageOpt("-consolidationinterval", _("Block interval between consolidations (default: 25)"));
    strUsage += HelpMessageOpt("-consolidatesaplingaddress=<zaddr>", _("Specify Sapling Address to Consolidate. (default: all)"));
    strUsage += HelpMessageOpt("-consolidationtxfee", strprintf(_("Fee amount in Puposhis used send consolidation transactions. (default %i)"), DEFAULT_CONSOLIDATION_FEE));

    strUsage += HelpMessageOpt("-zsweep", _("Enable zaddr sweeping, automatically move all shielded funds to a one address once per X blocks"));
    strUsage += HelpMessageOpt("-zsweepaddress=<zaddr>", _("Specify the shielded address where swept funds will be sent)"));
    strUsage += HelpMessageOpt("-zsweepfee", strprintf(_("Fee amount in puposhis used send sweep transactions. (default %i)"), DEFAULT_SWEEP_FEE));
    strUsage += HelpMessageOpt("-zsweepinterval", strprintf(_("Sweep shielded funds every X blocks (default %i)"), 5));
    strUsage += HelpMessageOpt("-zsweepmaxinputs", strprintf(_("Maximum number of shielded inputs to sweep per transaction (default %i)"), 8));
    // By default we only allow sweeping to the current wallet which must have the spending key of the sweep zaddr
    // This hopefully will make it harder for people to accidentally sweep funds to a wrong zaddr and lose funds
    strUsage += HelpMessageOpt("-zsweepexternal", _("Enable sweeping to an external wallet (default false)"));
    strUsage += HelpMessageOpt("-zsweepexclude", _("Addresses to exclude from sweeping (default none)"));

    strUsage += HelpMessageOpt("-autoshield", _("Automatically shield matured coinbase (mining rewards) into a seed-derived wallet z-address (default: true for wallets created or restored by this software, false when the HD seed provenance is unknown). No-op when not mining or wallet is locked."));
    strUsage += HelpMessageOpt("-autoshieldinterval", strprintf(_("Block interval between automatic coinbase-shielding rounds (default: %i, min %i)"), DEFAULT_AUTOSHIELD_INTERVAL, MIN_AUTOSHIELD_INTERVAL));
    strUsage += HelpMessageOpt("-autoshieldaddress=<zaddr>", _("Destination Sapling z-address for auto-shielded coinbase (default: reuse or create a wallet z-address). Must be spendable by this wallet."));
    strUsage += HelpMessageOpt("-autoshieldfee", strprintf(_("Fee in puposhis for automatic coinbase-shielding transactions (default: %i)"), DEFAULT_AUTOSHIELD_FEE));

    strUsage += HelpMessageOpt("-sietch-min-zouts=<n>", strprintf(_("Minimum number of shielded (Sapling) outputs Sietch adds to each z_sendmany transaction as decoys, strengthening amount/linkability privacy. Higher values add privacy at the cost of larger transactions (default: %u, clamped to the range 3-50)"), 7));
    strUsage += HelpMessageOpt("-autoshieldminutxos", strprintf(_("Only auto-shield once at least this many matured coinbase UTXOs exist (default: %i)"), 1));

    strUsage += HelpMessageOpt("-deletetx", _("Enable Old Transaction Deletion"));
    strUsage += HelpMessageOpt("-deleteinterval", strprintf(_("Delete transaction every <n> blocks during inital block download (default: %i)"), DEFAULT_TX_DELETE_INTERVAL));
    strUsage += HelpMessageOpt("-keeptxnum", strprintf(_("Keep the last <n> transactions (default: %i)"), DEFAULT_TX_RETENTION_LASTTX));
    strUsage += HelpMessageOpt("-keeptxfornblocks", strprintf(_("Keep transactions for at least <n> blocks (default: %i)"), DEFAULT_TX_RETENTION_BLOCKS));
    if (showDebug)
        strUsage += HelpMessageOpt("-mintxfee=<amt>", strprintf("Fees (in %s/kB) smaller than this are considered zero fee for transaction creation (default: %s)",
            CURRENCY_UNIT, FormatMoney(CWallet::minTxFee.GetFeePerK())));
    strUsage += HelpMessageOpt("-paytxfee=<amt>", strprintf(_("Fee (in %s/kB) to add to transactions you send (default: %s)"), CURRENCY_UNIT, FormatMoney(payTxFee.GetFeePerK())));
    // If this is used incorrectly (-rescanheight too large), then the local wallet may attempt to spend funds which it does not have witness data about
    // which will cause a "missing inputs" error when added to the mempool. Rescanning from correct height will fix this.
    strUsage += HelpMessageOpt("-keepnotewitnesscache", _("Keep partial Sapling Note Witness cache. Must be used with -rescanheight to find missing cache items."));
    strUsage += HelpMessageOpt("-rescan", _("Rescan the block chain for missing wallet transactions") + " " + _("on startup"));
    strUsage += HelpMessageOpt("-rescanheight", _("Rescan from specified height when rescan=1 on startup"));
    strUsage += HelpMessageOpt("-salvagewallet", _("Attempt to recover private keys from a corrupt wallet.dat") + " " + _("on startup"));
    strUsage += HelpMessageOpt("-sendfreetransactions", strprintf(_("Send transactions as zero-fee transactions if possible (default: %u)"), 0));
    strUsage += HelpMessageOpt("-spendzeroconfchange", strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), 1));
    strUsage += HelpMessageOpt("-txconfirmtarget=<n>", strprintf(_("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)"), DEFAULT_TX_CONFIRM_TARGET));
    strUsage += HelpMessageOpt("-txexpirydelta", strprintf(_("Set the number of blocks after which a transaction that has not been mined will become invalid (default: %u)"), DEFAULT_TX_EXPIRY_DELTA));
    strUsage += HelpMessageOpt("-maxtxfee=<amt>", strprintf(_("Maximum total fees (in %s) to use in a single wallet transaction; setting this too low may abort large transactions (default: %s)"),
        CURRENCY_UNIT, FormatMoney(maxTxFee)));
    strUsage += HelpMessageOpt("-upgradewallet", _("Upgrade wallet to latest format") + " " + _("on startup"));
    strUsage += HelpMessageOpt("-wallet=<file>", _("Specify wallet file absolute path or a path relative to the data directory") + " " + strprintf(_("(default: %s)"), DEFAULT_WALLET_DAT));
    strUsage += HelpMessageOpt("-walletbroadcast", _("Make the wallet broadcast transactions") + " " + strprintf(_("(default: %u)"), true));
    strUsage += HelpMessageOpt("-walletnotify=<cmd>", _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)"));
    strUsage += HelpMessageOpt("-allowlistaddress=<Raddress>", _("Enable the wallet filter for notary nodes and add one Raddress to the allowlist of the wallet filter. If -allowlistaddress= is used, then the wallet filter is automatically activated. Several Raddresses can be defined using several -allowlistaddress= (similar to -addnode). The wallet filter will filter the utxo to only ones coming from my own Raddress (derived from pubkey) and each Raddress defined using -allowlistaddress= this option is mostly for Notary Nodes)."));
    strUsage += HelpMessageOpt("-zapwallettxes=<mode>", _("Delete all wallet transactions and only recover those parts of the blockchain through -rescan on startup") +
        " " + _("(1 = keep tx meta data e.g. account owner and payment request information, 2 = drop tx meta data)"));
#endif

    strUsage += HelpMessageGroup(_("Debugging/Testing options:"));
    if (showDebug)
    {
        strUsage += HelpMessageOpt("-checkpoints", strprintf("Disable expensive verification for known chain history (default: %u)", 1));
        strUsage += HelpMessageOpt("-dblogsize=<n>", strprintf("Flush database activity from memory pool to disk log every <n> megabytes (default: %u)", 100));
        strUsage += HelpMessageOpt("-disablesafemode", strprintf("Disable safemode, override a real safe mode event (default: %u)", 0));
        strUsage += HelpMessageOpt("-testsafemode", strprintf("Force safe mode (default: %u)", 0));
        strUsage += HelpMessageOpt("-dropmessagestest=<n>", "Randomly drop 1 of every <n> network messages");
        strUsage += HelpMessageOpt("-fuzzmessagestest=<n>", "Randomly fuzz 1 of every <n> network messages");
        strUsage += HelpMessageOpt("-flushwallet", strprintf("Run a thread to flush wallet periodically (default: %u)", 1));
        strUsage += HelpMessageOpt("-stopafterblockimport", strprintf("Stop running after importing blocks from disk (default: %u)", 0));
        strUsage += HelpMessageOpt("-nuparams=hexBranchId:activationHeight", "Use given activation height for specified network upgrade (regtest-only)");
    }
    string debugCategories = "addrman, bench, coindb, db, deletetx, estimatefee, http, libevent, lock, mempool, net, tls, partitioncheck, pow, proxy, prune, rand, randomx, reindex, rpc, selectcoins, stratum, tor, zrpc, zrpcunsafe (implies zrpc)"; // Don't translate these
    strUsage += HelpMessageOpt("-debug=<category>", strprintf(_("Output debugging information (default: %u, supplying <category> is optional)"), 0) + ". " +
        _("If <category> is not supplied or if <category> = 1, output all debugging information.") + " " + _("<category> can be:") + " " + debugCategories + ".");
    strUsage += HelpMessageOpt("-experimentalfeatures", _("Enable use of experimental features"));
    strUsage += HelpMessageOpt("-help-debug", _("Show all debugging options (usage: --help -help-debug)"));
    strUsage += HelpMessageOpt("-logips", strprintf(_("Include IP addresses in debug output (default: %u)"), 0));
    strUsage += HelpMessageOpt("-logtimestamps", strprintf(_("Prepend debug output with timestamp (default: %u)"), 1));
    if (showDebug)
    {
        strUsage += HelpMessageOpt("-limitfreerelay=<n>", strprintf("Continuously rate-limit free transactions to <n>*1000 bytes per minute (default: %u)", 15));
        strUsage += HelpMessageOpt("-relaypriority", strprintf("Require high priority for relaying free or low-fee transactions (default: %u)", 0));
        strUsage += HelpMessageOpt("-maxsigcachesize=<n>", strprintf("Limit size of signature cache to <n> entries (default: %u)", 50000));
        strUsage += HelpMessageOpt("-maxtipage=<n>", strprintf("Maximum tip age in seconds to consider node in initial block download (default: %u)", DEFAULT_MAX_TIP_AGE));
    }
    strUsage += HelpMessageOpt("-minrelaytxfee=<amt>", strprintf(_("Fees (in %s/kB) smaller than this are considered zero fee for relaying (default: %s)"),
        CURRENCY_UNIT, FormatMoney(::minRelayTxFee.GetFeePerK())));
    strUsage += HelpMessageOpt("-printtoconsole", _("Send trace/debug info to console instead of debug.log file"));
    if (showDebug)
    {
        strUsage += HelpMessageOpt("-printpriority", strprintf("Log transaction priority and fee per kB when mining blocks (default: %u)", 0));
        strUsage += HelpMessageOpt("-privdb", strprintf("Sets the DB_PRIVATE flag in the wallet db environment (default: %u)", 1));
        strUsage += HelpMessageOpt("-regtest", "Enter regression test mode, which uses a special chain in which blocks can be solved instantly. "
            "This is intended for regression testing tools and app development.");
    }
    strUsage += HelpMessageOpt("-shrinkdebugfile", _("Shrink debug.log file on client startup (default: 1 when no -debug)"));
    strUsage += HelpMessageOpt("-testnet", _("Use the test network"));

    strUsage += HelpMessageGroup(_("Node relay options:"));
    strUsage += HelpMessageOpt("-datacarrier", strprintf(_("Relay and mine data carrier transactions (default: %u)"), 1));
    strUsage += HelpMessageOpt("-datacarriersize", strprintf(_("Maximum size of data in data carrier transactions we relay and mine (default: %u)"), MAX_OP_RETURN_RELAY));

    strUsage += HelpMessageGroup(_("Block creation options:"));
    strUsage += HelpMessageOpt("-blockminsize=<n>", strprintf(_("Set minimum block size in bytes (default: %u)"), 0));
    strUsage += HelpMessageOpt("-blockmaxsize=<n>", strprintf(_("Set maximum block size in bytes (default: %d)"), DEFAULT_BLOCK_MAX_SIZE));
    strUsage += HelpMessageOpt("-blockprioritysize=<n>", strprintf(_("Set maximum size of high-priority/low-fee transactions in bytes (default: %d)"), DEFAULT_BLOCK_PRIORITY_SIZE));
    if (GetBoolArg("-help-debug", false))
        strUsage += HelpMessageOpt("-blockversion=<n>", strprintf("Override block version to test forking scenarios (default: %d)", (int)CBlock::CURRENT_VERSION));

#ifdef ENABLE_MINING
    strUsage += HelpMessageGroup(_("Mining options:"));
    strUsage += HelpMessageOpt("-gen", strprintf(_("Mine/generate coins (default: %u)"), 0));
    strUsage += HelpMessageOpt("-genproclimit=<n>", strprintf(_("Set the number of threads for coin mining if enabled (-1 = all cores, default: %d)"), 0));
    strUsage += HelpMessageOpt("-equihashsolver=<name>", _("Specify the Equihash solver to be used if enabled (default: \"default\")"));
    strUsage += HelpMessageOpt("-mineraddress=<addr>", _("Send mined coins to a specific single address"));
    strUsage += HelpMessageOpt("-minetolocalwallet", strprintf(
            _("Require that mined blocks use a coinbase address in the local wallet (default: %u)"),
 #ifdef ENABLE_WALLET
            1
 #else
            0
 #endif
            ));
#endif

    strUsage += HelpMessageGroup(_("RPC server options:"));
    strUsage += HelpMessageOpt("-server", _("Accept command line and JSON-RPC commands"));
    strUsage += HelpMessageOpt("-rest", strprintf(_("Accept public REST requests (default: %u)"), 0));
    strUsage += HelpMessageOpt("-rpcbind=<addr>", _("Bind to given address to listen for JSON-RPC connections. Use [host]:port notation for IPv6. This option can be specified multiple times (default: bind to all interfaces)"));
    strUsage += HelpMessageOpt("-rpcuser=<user>", _("Username for JSON-RPC connections"));
    strUsage += HelpMessageOpt("-rpcpassword=<pw>", _("Password for JSON-RPC connections"));
    strUsage += HelpMessageOpt("-rpcport=<port>", strprintf(_("Listen for JSON-RPC connections on <port> (default: %u or testnet: %u)"), ASSETCHAINS_RPCPORT, 10000 + ASSETCHAINS_RPCPORT));
    strUsage += HelpMessageOpt("-rpcallowip=<ip>", _("Allow JSON-RPC connections from specified source. Valid for <ip> are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24). This option can be specified multiple times"));
    strUsage += HelpMessageOpt("-rpcthreads=<n>", strprintf(_("Set the number of threads to service RPC calls (default: %d)"), DEFAULT_HTTP_THREADS));
    if (showDebug) {
        strUsage += HelpMessageOpt("-rpcworkqueue=<n>", strprintf("Set the depth of the work queue to service RPC calls (default: %d)", DEFAULT_HTTP_WORKQUEUE));
        strUsage += HelpMessageOpt("-rpcservertimeout=<n>", strprintf("Timeout during HTTP requests (default: %d)", DEFAULT_HTTP_SERVER_TIMEOUT));
    }

    if (mode == HMM_BITCOIND) {
        strUsage += HelpMessageGroup(_("Metrics Options (only if -daemon and -printtoconsole are not set):"));
        strUsage += HelpMessageOpt("-showmetrics", _("Show metrics on stdout (default: 1 if running in a console, 0 otherwise)"));
        strUsage += HelpMessageOpt("-metricsui", _("Set to 1 for a persistent metrics screen, 0 for sequential metrics output (default: 1 if running in a console, 0 otherwise)"));
        strUsage += HelpMessageOpt("-metricsrefreshtime", strprintf(_("Number of seconds between metrics refreshes (default: %u if running in a console, %u otherwise)"), 1, 600));
    }

    strUsage += HelpMessageGroup(_("Stratum server options:"));
    strUsage += HelpMessageOpt("-stratum", _("Enable stratum server (default: off)"));
    strUsage += HelpMessageOpt("-stratumtarget=<hex>", _("Pool share target (64-hex, big-endian; larger = easier). Default is the diff-1 target. Useful for solo/low-difficulty mining."));
    strUsage += HelpMessageOpt("-stratumaddress=<address>", _("Mining address to use when special address of 'x' is sent by miner (default: none)"));
    strUsage += HelpMessageOpt("-stratumbind=<ipaddr>", _("Bind to given address to listen for Stratum work requests. Use [host]:port notation for IPv6. This option can be specified multiple times (default: bind to all interfaces)"));
    strUsage += HelpMessageOpt("-stratumport=<port>", strprintf(_("Listen for Stratum work requests on <port> (default: %u or testnet: %u)"), BaseParams().StratumPort(), BaseParams().StratumPort()));
    strUsage += HelpMessageOpt("-stratumallowip=<ip>", _("Allow Stratum work requests from specified source. Valid for <ip> are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24). This option can be specified multiple times"));

    // "ac" prefix is inherited from the Komodo asset-chain lineage ("asset chain"/"affects consensus")
    strUsage += HelpMessageGroup(_("DragonX Chain options:"));
    strUsage += HelpMessageOpt("-ac_algo", _("Choose PoW mining algorithm, either 'equihash' or 'randomx'. default is Equihash (200,9)"));
    strUsage += HelpMessageOpt("-ac_blocktime", _("Block time in seconds, default is 60"));
    strUsage += HelpMessageOpt("-ac_beam", _("BEAM integration"));
    strUsage += HelpMessageOpt("-ac_burn", _("Allow sending funds to the transparent burn address when -ac_private=1"));
    strUsage += HelpMessageOpt("-ac_minopreturnfee", _("OP_RETURN minimum fee per tx, regardless of tx size, default is 1 coin"));
    strUsage += HelpMessageOpt("-ac_coda", _("CODA integration"));
    strUsage += HelpMessageOpt("-ac_clearnet", _("Enable or disable clearnet connections for the entire blockchain. Setting to 0 will disable clearnet and use sane defaults for Tor/i2p and require all nodes to do the same") + " " + strprintf(_("(default: %u)"), DEFAULT_CLEARNET));
    strUsage += HelpMessageOpt("-ac_decay", _("Percentage of block reward decrease at each halving"));
    strUsage += HelpMessageOpt("-ac_end", _("Block height at which block rewards will end"));
    strUsage += HelpMessageOpt("-ac_eras", _("Block reward eras"));
    strUsage += HelpMessageOpt("-ac_founders", _("Number of blocks between founders reward payouts"));
    strUsage += HelpMessageOpt("-ac_halving", _("Number of blocks between each block reward halving"));
    strUsage += HelpMessageOpt("-ac_name", _("Name of asset chain"));
    strUsage += HelpMessageOpt("-ac_notarypay", _("Pay notaries, default 0"));
    strUsage += HelpMessageOpt("-ac_perc", _("Percentage of block rewards paid to the founder"));
    strUsage += HelpMessageOpt("-ac_private", _("Shielded transactions only (except coinbase + notaries), default is 0"));
    strUsage += HelpMessageOpt("-ac_pubkey", _("Public key for receiving payments on the network"));
    strUsage += HelpMessageOpt("-ac_public", _("Transparent transactions only, default 0"));
    strUsage += HelpMessageOpt("-ac_randomx_interval", _("Controls how often the RandomX key block will change, default is 1024"));
    strUsage += HelpMessageOpt("-ac_randomx_lag", _("Sets the number of RandomX blocks to wait before updating the key block, default is 64"));
    strUsage += HelpMessageOpt("-ac_reward", _("Block reward in satoshis, default is 0"));
    // All HAC's activate sapling at block height 1, other heights are not supported
    //strUsage += HelpMessageOpt("-ac_sapling", _("Sapling activation block height"));
    strUsage += HelpMessageOpt("-ac_script", _("P2SH/multisig address to receive founders rewards"));
    strUsage += HelpMessageOpt("-ac_supply", _("Starting supply, default is 10"));
    strUsage += HelpMessageOpt("-ac_txpow", _("Enforce transaction-rate limit, default 0"));

    return strUsage;
}

static void BlockNotifyCallback(const uint256& hashNewTip)
{
    std::string strCmd = GetArg("-blocknotify", "");

    boost::replace_all(strCmd, "%s", hashNewTip.GetHex());
    boost::thread t(runCommand, strCmd); // thread runs free
}

static void TxExpiryNotifyCallback(const uint256& txid)
{
    std::string strCmd = GetArg("-txexpirynotify", "");

    boost::replace_all(strCmd, "%s", txid.GetHex());
    boost::thread t(runCommand, strCmd); // thread runs free
}

struct CImportingNow
{
    CImportingNow() {
        assert(fImporting == false);
        fImporting = true;
    }

    ~CImportingNow() {
        assert(fImporting == true);
        fImporting = false;
    }
};


// If we're using -prune with -reindex, then delete block files that will be ignored by the
// reindex.  Since reindexing works by starting at block file 0 and looping until a blockfile
// is missing, do the same here to delete any later block files after a gap.  Also delete all
// rev files since they'll be rewritten by the reindex anyway.  This ensures that vinfoBlockFile
// is in sync with what's actually on disk by the time we start downloading, so that pruning
// works correctly.
void CleanupBlockRevFiles()
{
    using namespace boost::filesystem;
    map<string, path> mapBlockFiles;

    // Glob all blk?????.dat and rev?????.dat files from the blocks directory.
    // Remove the rev files immediately and insert the blk file paths into an
    // ordered map keyed by block file index.
    LogPrintf("Removing unusable blk?????.dat and rev?????.dat files for -reindex with -prune\n");
    path blocksdir = GetDataDir() / "blocks";
    for (directory_iterator it(blocksdir); it != directory_iterator(); it++) {
        if (is_regular_file(*it) &&
            it->path().filename().string().length() == 12 &&
            it->path().filename().string().substr(8,4) == ".dat")
        {
            if (it->path().filename().string().substr(0,3) == "blk")
                mapBlockFiles[it->path().filename().string().substr(3,5)] = it->path();
            else if (it->path().filename().string().substr(0,3) == "rev")
                remove(it->path());
        }
    }
    path hushstate = GetDataDir() / "hushstate";
    remove(hushstate);
    path minerids = GetDataDir() / "minerids";
    remove(minerids);
    // Remove all block files that aren't part of a contiguous set starting at
    // zero by walking the ordered map (keys are block file indices) by
    // keeping a separate counter.  Once we hit a gap (or if 0 doesn't exist)
    // start removing block files.
    int nContigCounter = 0;
    BOOST_FOREACH(const PAIRTYPE(string, path)& item, mapBlockFiles) {
        if (atoi(item.first) == nContigCounter) {
            nContigCounter++;
            continue;
        }
        remove(item.second);
    }
}

void ThreadImport(std::vector<boost::filesystem::path> vImportFiles)
{
    RenameThread("hush-loadblk");
    // -reindex
    if (fReindex) {
        CImportingNow imp;
        int nFile = 0;
        while (true) {
            CDiskBlockPos pos(nFile, 0);
            if (!boost::filesystem::exists(GetBlockPosFilename(pos, "blk")))
                break; // No block files left to reindex
            FILE *file = OpenBlockFile(pos, true);
            if (!file)
                break; // This error is logged in OpenBlockFile
            LogPrintf("Reindexing block file blk%05u.dat...\n", (unsigned int)nFile);
            LoadExternalBlockFile(file, &pos);
            nFile++;
        }
        pblocktree->WriteReindexing(false);
        fReindex = false;
        LogPrintf("Reindexing finished\n");
        // To avoid ending up in a situation without genesis block, re-try initializing (no-op if reindexing worked):
        InitBlockIndex();
        HUSH_LOADINGBLOCKS = 0;
    }

    // hardcoded $DATADIR/bootstrap.dat
    boost::filesystem::path pathBootstrap = GetDataDir() / "bootstrap.dat";
    if (boost::filesystem::exists(pathBootstrap)) {
        FILE *file = fopen(pathBootstrap.string().c_str(), "rb");
        if (file) {
            CImportingNow imp;
            boost::filesystem::path pathBootstrapOld = GetDataDir() / "bootstrap.dat.old";
            LogPrintf("Importing bootstrap.dat...\n");
            LoadExternalBlockFile(file);
            RenameOver(pathBootstrap, pathBootstrapOld);
        } else {
            LogPrintf("Warning: Could not open bootstrap file %s\n", pathBootstrap.string());
        }
    }

    // -loadblock=
    BOOST_FOREACH(const boost::filesystem::path& path, vImportFiles) {
        FILE *file = fopen(path.string().c_str(), "rb");
        if (file) {
            CImportingNow imp;
            LogPrintf("Importing blocks file %s...\n", path.string());
            LoadExternalBlockFile(file);
        } else {
            LogPrintf("Warning: Could not open blocks file %s\n", path.string());
        }
    }

    if (GetBoolArg("-stopafterblockimport", false)) {
        LogPrintf("Stopping after block import\n");
        StartShutdown();
    }
}

/** Sanity checks
 *  Ensure that DragonX is running in a usable environment with all
 *  necessary library support.
 */
bool InitSanityCheck(void)
{
    if(!ECC_InitSanityCheck()) {
        InitError("Elliptic curve cryptography sanity check failure. Aborting.");
		fprintf(stderr,"%s: ECC insanity!\n", __FUNCTION__);
        return false;
    }
    if (!glibc_sanity_test() || !glibcxx_sanity_test()) {
		fprintf(stderr,"%s: glibc insanity!\n", __FUNCTION__);
        return false;
}

    return true;
}

void NoParamsShutdown(void)
{
    fprintf(stderr,"%s: no params!\n", __FUNCTION__);
    LogPrintf("Could not find valid Sapling params anywhere! Exiting...");
    uiInterface.ThreadSafeMessageBox(strprintf(
        _("Cannot find the Sapling network parameters! Something is very wrong.\n"
            "Please join our Telegram for help: https://hush.is/telegram_support")),
        "", CClientUIInterface::MSG_ERROR);
    StartShutdown();
    return;
}

void CorruptParamsShutdown(void)
{
    fprintf(stderr,"%s: corrupt params!\n", __FUNCTION__);
    LogPrintf("We detected corrupt Sapling params! Exiting...");
    uiInterface.ThreadSafeMessageBox(strprintf(
        _("Corrupt Sapling network parameters were detected! Something is very wrong.\n"
            "Please join our Telegram for help: https://hush.is/telegram_support")),
        "", CClientUIInterface::MSG_ERROR);
    StartShutdown();
    return;
}

bool files_exist(boost::filesystem::path file1, boost::filesystem::path file2) {
    return boost::filesystem::exists(file1) && boost::filesystem::exists(file2);
}

static void ZC_LoadParams(const CChainParams& chainparams)
{
    namespace fs = boost::filesystem;
    struct timeval tv_start, tv_end;
    float elapsed;
    bool found = false;
    char cwd[1024];
    bool ret = getcwd(cwd, sizeof(cwd));

    LogPrintf("Looking for sapling params, PWD=%s\n", cwd);

    // Some people have previous partial downloads of zcash params, so check that last
    // Sapling Param Search path: . /usr/share/hush .. ../hush3 ./Contents/MacOS/ ~/.zcash-params
    gettimeofday(&tv_start, 0);

    // PWD
    boost::filesystem::path sapling_spend  = "sapling-spend.params";
    boost::filesystem::path sapling_output = "sapling-output.params";
    if (files_exist(sapling_spend, sapling_output)) {
        LogPrintf("Found sapling params in .\n");
        found = true;
    }

    if (!found) {
       // Debian global install dir: /usr/share/hush
       sapling_spend  = fs::path("/usr/share/hush") / "sapling-spend.params";
       sapling_output = fs::path("/usr/share/hush") / "sapling-output.params";
       if (files_exist(sapling_spend, sapling_output)) {
            LogPrintf("Found sapling params in /usr/share/hush\n");
            found=true;
        }
    }

	if (!found) {
        // Try ..
        sapling_spend  = boost::filesystem::path("..") / "sapling-spend.params";
        sapling_output = boost::filesystem::path("..") / "sapling-output.params";
        if (files_exist(sapling_spend, sapling_output)) {
            LogPrintf("Found sapling params in ..\n");
            found = true;
        }
    }

    if (!found) {
        // This will catch the case of any external software (i.e. GUI wallets) needing params and installed in same dir as hush3.git
        sapling_spend  = boost::filesystem::path("..") / "hush3" / "sapling-spend.params";
        sapling_output = boost::filesystem::path("..") / "hush3" / "sapling-output.params";
        if (files_exist(sapling_spend, sapling_output)) {
            LogPrintf("Found sapling params in ../hush3\n");
            found = true;
    	}
    }

    if (!found) {
        // This will only work when SD is installed into /Applications, which is the only supported method
        sapling_spend  = boost::filesystem::path("/Applications/silentdragon.app/Contents/MacOS") / "sapling-spend.params";
        sapling_output = boost::filesystem::path("/Applications/silentdragon.app/Contents/MacOS") / "sapling-output.params";
        if (files_exist(sapling_spend, sapling_output)) {
            LogPrintf("Found sapling params in /Applications/Contents/MacOS\n");
            found = true;
    	}
    }
    
    if (!found) {
        // SD DMG Support: Apple just has to do things differently...
        sapling_spend  = boost::filesystem::path("./silentdragon.app/Contents/MacOS") / "sapling-spend.params";
        sapling_output = boost::filesystem::path("./silentdragon.app/Contents/MacOS") / "sapling-output.params";
        if (files_exist(sapling_spend, sapling_output)) {
            LogPrintf("Found sapling params in /Applications/Contents/MacOS\n");
            found = true;
		}
    }
    
    if (!found) {
        // The traditional place Zcash params are stored, should not hit this case in normal circumstances,
        // as DragonX packages sapling params now
        sapling_spend  = ZC_GetParamsDir() / "sapling-spend.params";
        sapling_output = ZC_GetParamsDir() / "sapling-output.params";
        if (files_exist(sapling_spend, sapling_output)) {
            LogPrintf("Found sapling params in ~/.zcash\n");
            found = true;
        }
	}

    if (!found) {
        // No Sapling params, at least we tried
	    LogPrintf("No Sapling params found! :(\n");
        NoParamsShutdown();
        return;
    }

    boost::system::error_code ec1, ec2;
    boost::uintmax_t spend_size  = file_size(sapling_spend, ec1);
    boost::uintmax_t output_size = file_size(sapling_output, ec2);
    LogPrintf("Sapling spend: %d bytes, output: %d bytes\n", (int)spend_size, (int)output_size);

    // We could check sha hashes, but we mostly want to detect on-disk file corruption
    // or people having a full harddrive. Full validation happens in librustzcash_init_zksnark_params
    // This prevents users seeing very low-level errors from that routine
    boost::uintmax_t spend_valid  = 47958396;
    boost::uintmax_t output_valid = 3592860;
    //TODO: passing the exact reason for corruption to GUI
    if (spend_size != spend_valid) {
        LogPrintf("Sapling spend %d bytes != %d is invalid!\n", (int)spend_size, (int)spend_valid);
        CorruptParamsShutdown();
        return;
    }

    if (output_size != output_valid) {
        LogPrintf("Sapling ouput %d bytes != %d is invalid!\n", (int)output_size, (int)output_valid);
        CorruptParamsShutdown();
        return;
    }

    gettimeofday(&tv_end, 0);
    elapsed = float(tv_end.tv_sec-tv_start.tv_sec) + (tv_end.tv_usec-tv_start.tv_usec)/float(1000000);
    LogPrintf("Found sapling param in %fs seconds.\n", elapsed);

    static_assert( sizeof(boost::filesystem::path::value_type) == sizeof(codeunit), "librustzcash not configured correctly");

    auto sapling_spend_str = sapling_spend.native();
    auto sapling_output_str = sapling_output.native();

    LogPrintf("Loading Sapling (Spend) parameters from %s\n", sapling_spend.string().c_str());
    LogPrintf("Loading Sapling (Output) parameters from %s\n", sapling_output.string().c_str());
    gettimeofday(&tv_start, 0);

    librustzcash_init_zksnark_params(
        reinterpret_cast<const codeunit*>(sapling_spend_str.c_str()),
        sapling_spend_str.length(),
        "8270785a1a0d0bc77196f000ee6d221c9c9894f55307bd9357c3f0105d31ca63991ab91324160d8f53e2bbd3c2633a6eb8bdf5205d822e7f3f73edac51b2b70c",
        reinterpret_cast<const codeunit*>(sapling_output_str.c_str()),
        sapling_output_str.length(),
        "657e3d38dbb5cb5e7dd2970e8b03d69b4787dd907285b5a7f0790dcc8072f60bf593b32cc2d1c030e00ff5ae64bf84c5c3beb84ddc841d48264b4a171744d028",
        // These are dummy arguments, ignored by Hush-flavored librustzcash
        reinterpret_cast<const codeunit*>(sapling_output_str.c_str()),
        sapling_output_str.length(),
        "657e3d38dbb5cb5e7dd2970e8b03d69b4787dd907285b5a7f0790dcc8072f60bf593b32cc2d1c030e00ff5ae64bf84c5c3beb84ddc841d48264b4a171744d028"
    );

    gettimeofday(&tv_end, 0);
    elapsed = float(tv_end.tv_sec-tv_start.tv_sec) + (tv_end.tv_usec-tv_start.tv_usec)/float(1000000);
    LogPrintf("Loaded Sapling parameters in %fs seconds.\n", elapsed);
}

bool AppInitServers(boost::thread_group& threadGroup)
{
    LogPrintf("%s: start\n",__func__);
    RPCServer::OnStopped(&OnRPCStopped);
    RPCServer::OnPreCommand(&OnRPCPreCommand);
    if (!InitHTTPServer())
        return false;
    // Stratum server (stratum.cpp) supports DragonX's RandomX PoW (32-byte solution + per-height
    // RandomX key conveyed to the miner) as well as legacy Equihash, branched on ASSETCHAINS_ALGO.
    // Off by default (DEFAULT_STRATUM_ENABLE=false); only -stratum turns it on. Needs a RandomX-aware
    // stratum miner (see contrib/ reference miner) — stock Equihash/Monero miners won't work.
    if (GetBoolArg("-stratum", DEFAULT_STRATUM_ENABLE) && !InitStratumServer())
        return false;
    if (!StartRPC())
        return false;
    if (!StartHTTPRPC())
        return false;
    if (GetBoolArg("-rest", false) && !StartREST())
        return false;
    if (!StartHTTPServer())
        return false;
    return true;
}

/** Initialize DragonX.
 *  @pre Parameters should be parsed and config file should be read.
 */
extern int32_t HUSH_REWIND;

// --- Adaptive coins-cache sizing -------------------------------------------------------------
// The in-memory UTXO/coins cache (nCoinCacheUsage) is the biggest lever on IBD speed: a bigger
// cache means far fewer chainstate flushes to disk. We size it to use most of RAM, but a scheduled
// background task (AdjustCoinCacheForMemoryPressure, registered in AppInit2) shrinks the target when
// free system memory runs low — e.g. the user opens other apps — and grows it back when memory frees
// up, always leaving a reserve free for the rest of the system. The existing per-block flush
// (FlushStateToDisk, FLUSH_STATE_IF_NEEDED, which fires when cacheSize > nCoinCacheUsage) enforces
// whatever target is current, so the task only moves the threshold: it never touches cs_main or the
// flush path. NOTE: the coins cache is application heap, not OS file cache — "freeing" it means an
// early flush that clears the map; on Linux the allocator returns the pages, on Windows the heap
// returns them best-effort (RSS may lag), but either way the node stops growing past the target.
// windows.h / <unistd.h> arrive via compat.h (net.h). Memory helpers return 0 if undeterminable.
static int64_t GetPhysicalMemoryMB()
{
#ifdef WIN32
    MEMORYSTATUSEX status;
    status.dwLength = sizeof(status);
    if (GlobalMemoryStatusEx(&status))
        return (int64_t)(status.ullTotalPhys / (1024 * 1024));
    return 0;
#elif defined(_SC_PHYS_PAGES) && defined(_SC_PAGESIZE)
    long pages = sysconf(_SC_PHYS_PAGES);
    long pageSize = sysconf(_SC_PAGESIZE);
    if (pages > 0 && pageSize > 0)
        return (int64_t)((int64_t)pages * (int64_t)pageSize / (1024 * 1024));
    return 0;
#else
    return 0;
#endif
}

// Currently-available (allocatable) physical RAM in MiB. On Linux uses MemAvailable (counts
// reclaimable page cache), falling back to truly-free pages.
static int64_t GetAvailableMemoryMB()
{
#ifdef WIN32
    MEMORYSTATUSEX status;
    status.dwLength = sizeof(status);
    if (GlobalMemoryStatusEx(&status))
        return (int64_t)(status.ullAvailPhys / (1024 * 1024));
    return 0;
#else
    FILE* f = fopen("/proc/meminfo", "r");
    if (f) {
        char line[256];
        long long availKB = -1;
        while (fgets(line, sizeof(line), f)) {
            if (sscanf(line, "MemAvailable: %lld kB", &availKB) == 1)
                break;
        }
        fclose(f);
        if (availKB >= 0)
            return (int64_t)(availKB / 1024);
    }
  #if defined(_SC_AVPHYS_PAGES) && defined(_SC_PAGESIZE)
    long pages = sysconf(_SC_AVPHYS_PAGES);
    long pageSize = sysconf(_SC_PAGESIZE);
    if (pages > 0 && pageSize > 0)
        return (int64_t)((int64_t)pages * (int64_t)pageSize / (1024 * 1024));
  #endif
    return 0;
#endif
}

// RAM (MiB) to always keep free for the OS and other applications: 20% of total, at least 2 GiB.
static int64_t GetMemoryReserveMB()
{
    int64_t ramMB = GetPhysicalMemoryMB();
    int64_t reserve = (ramMB > 0) ? ramMB / 5 : 2048; // 20%
    if (reserve < 2048) reserve = 2048;
    return reserve;
}

// Startup -dbcache default: use most of RAM (total minus the reserve), clamped to
// [nDefaultDbCache, nMaxDbCache] MiB. Falls back to the fixed default if RAM can't be detected.
static int64_t GetDefaultDbCacheMB()
{
    int64_t ramMB = GetPhysicalMemoryMB();
    if (ramMB <= 0)
        return nDefaultDbCache;
    int64_t cacheMB = ramMB - GetMemoryReserveMB();
    if (cacheMB < nDefaultDbCache) cacheMB = nDefaultDbCache;
    if (cacheMB > nMaxDbCache)     cacheMB = nMaxDbCache;
    return cacheMB;
}

// Ceiling (bytes) the adaptive task may grow the coins cache back up to (the startup nCoinCacheUsage).
static size_t g_nMaxCoinCacheUsage = 0;
static const int64_t g_nMinCoinCacheMB = 256; // never thrash below this working set

// Scheduled task: nudge nCoinCacheUsage toward "use all RAM except the reserve". If free RAM is below
// the reserve we shrink the target (the next per-block flush releases the excess); if there is spare
// RAM we grow it back toward the startup ceiling. nCoinCacheUsage is std::atomic<size_t>, so this
// cross-thread write (vs the cs_main-held reads in FlushStateToDisk/VerifyDB) is well-defined, no lock needed.
static void AdjustCoinCacheForMemoryPressure()
{
    if (g_nMaxCoinCacheUsage == 0)
        return; // adaptive sizing disabled (user pinned -dbcache) or RAM undetectable
    int64_t availMB = GetAvailableMemoryMB();
    if (availMB <= 0)
        return; // can't measure pressure; leave the target untouched
    int64_t reserveMB = GetMemoryReserveMB();
    // Error term: free RAM beyond the reserve. >0 => spare, grow; <0 => pressure, shrink.
    int64_t errMB = availMB - reserveMB;
    // Deadband: ignore small fluctuations so the target settles instead of oscillating.
    if (errMB > -256 && errMB < 256)
        return;
    int64_t curTargetMB = (int64_t)(nCoinCacheUsage >> 20);
    // Damped proportional step (gain 1/4) toward "free RAM == reserve"; the clamps bound it and the
    // per-block flush (FLUSH_STATE_IF_NEEDED) enforces a lowered target within ~one block during IBD.
    int64_t newTargetMB = curTargetMB + errMB / 4;
    int64_t ceilMB = (int64_t)(g_nMaxCoinCacheUsage >> 20);
    if (newTargetMB > ceilMB)            newTargetMB = ceilMB;
    if (newTargetMB < g_nMinCoinCacheMB) newTargetMB = g_nMinCoinCacheMB;
    nCoinCacheUsage = (size_t)(newTargetMB << 20);
}

bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
{
    // ********************************************************* Step 1: setup
#ifdef _MSC_VER
    // Turn off Microsoft heap dump noise
    _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE);
    _CrtSetReportFile(_CRT_WARN, CreateFileA("NUL", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0));
#endif
#if _MSC_VER >= 1400
    // Disable confusing "helpful" text message on abort, Ctrl-C
    _set_abort_behavior(0, _WRITE_ABORT_MSG | _CALL_REPORTFAULT);
#endif
#ifdef _WIN32
    // Enable Data Execution Prevention (DEP)
    // Minimum supported OS versions: WinXP SP3, WinVista >= SP1, Win Server 2008
    // A failure is non-critical and needs no further attention!
#ifndef PROCESS_DEP_ENABLE
    // We define this here, because GCCs winbase.h limits this to _WIN32_WINNT >= 0x0601 (Windows 7),
    // which is not correct. Can be removed, when GCCs winbase.h is fixed!
#define PROCESS_DEP_ENABLE 0x00000001
#endif
    typedef BOOL (WINAPI *PSETPROCDEPPOL)(DWORD);
    PSETPROCDEPPOL setProcDEPPol = (PSETPROCDEPPOL)GetProcAddress(GetModuleHandleA("Kernel32.dll"), "SetProcessDEPPolicy");
    if (setProcDEPPol != NULL) setProcDEPPol(PROCESS_DEP_ENABLE);
#endif

    if (!SetupNetworking())
        return InitError("Error: Initializing networking failed");
    if(fDebug)
        fprintf(stderr,"%s networking setup\n", __FUNCTION__);

#ifndef _WIN32
    if (GetBoolArg("-sysperms", false)) {
#ifdef ENABLE_WALLET
        if (!GetBoolArg("-disablewallet", false))
            return InitError("Error: -sysperms is not allowed in combination with enabled wallet functionality");
#endif
    } else {
        umask(077);
    }

    // Clean shutdown on SIGTERM
    registerSignalHandler(SIGTERM, HandleSIGTERM);
    registerSignalHandler(SIGINT, HandleSIGTERM);

    // Reopen debug.log on SIGHUP
    registerSignalHandler(SIGHUP, HandleSIGHUP);


    // Ignore SIGPIPE, otherwise it will bring the daemon down if the client closes unexpectedly
    signal(SIGPIPE, SIG_IGN);
#endif

    std::set_new_handler(new_handler_terminate);


    // ********************************************************* Step 2: parameter interactions
    const CChainParams& chainparams = Params();


    // Set this early so that experimental features are correctly enabled/disabled
    fExperimentalMode = GetBoolArg("-experimentalfeatures", true);

    if(fDebug)
        fprintf(stderr,"%s: fExperimentalMode=%d\n", __FUNCTION__, fExperimentalMode);

    // Fail early if user has set experimental options without the global flag
    if (!fExperimentalMode) {
        if (mapArgs.count("-developerencryptwallet")) {
			LogPrintf("%s wallet encryption error\n", __FUNCTION__);
            return InitError(_("Wallet encryption requires -experimentalfeatures."));
        }
    }

    // Set this early so that parameter interactions go to console
    fPrintToConsole = GetBoolArg("-printtoconsole", false);
    fLogTimestamps  = GetBoolArg("-logtimestamps", true);
    fLogIPs         = GetBoolArg("-logips", false);


    LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
    LogPrintf("DragonX version %s (%s)\n", FormatFullVersion());


#ifdef DEBUG_LOCKORDER
    LogPrintf("DEBUG_LOCKORDER enabled\n");
#else
    LogPrintf("DEBUG_LOCKORDER disabled\n");
#endif

    // when specifying an explicit binding address, you want to listen on it
    // even when -connect or -proxy is specified
    if (mapArgs.count("-bind")) {
        if (SoftSetBoolArg("-listen", true))
            LogPrintf("%s: parameter interaction: -bind set -> setting -listen=1\n", __func__);
    }
    if (mapArgs.count("-allowbind")) {
        if (SoftSetBoolArg("-listen", true))
            LogPrintf("%s: parameter interaction: -allowbind set -> setting -listen=1\n", __func__);
    }

    if (mapArgs.count("-connect") && mapMultiArgs["-connect"].size() > 0) {
        // when only connecting to trusted nodes, do not seed via DNS, or listen by default
        if (SoftSetBoolArg("-dnsseed", false))
            LogPrintf("%s: parameter interaction: -connect set -> setting -dnsseed=0\n", __func__);
        if (SoftSetBoolArg("-listen", false))
            LogPrintf("%s: parameter interaction: -connect set -> setting -listen=0\n", __func__);
    }

    if (mapArgs.count("-proxy")) {
        // to protect privacy, do not listen by default if a default proxy server is specified
        if (SoftSetBoolArg("-listen", false))
            LogPrintf("%s: parameter interaction: -proxy set -> setting -listen=0\n", __func__);
        // to protect privacy, do not discover addresses by default
        if (SoftSetBoolArg("-discover", false))
            LogPrintf("%s: parameter interaction: -proxy set -> setting -discover=0\n", __func__);
    }

    if (!GetBoolArg("-listen", DEFAULT_LISTEN)) {
        // do not try to retrieve public IP when not listening (pointless)
        if (SoftSetBoolArg("-discover", false))
            LogPrintf("%s: parameter interaction: -listen=0 -> setting -discover=0\n", __func__);
        if (SoftSetBoolArg("-listenonion", false))
            LogPrintf("%s: parameter interaction: -listen=0 -> setting -listenonion=0\n", __func__);
    }

    if (mapArgs.count("-externalip")) {
        // if an explicit public IP is specified, do not try to find others
        if (SoftSetBoolArg("-discover", false))
            LogPrintf("%s: parameter interaction: -externalip set -> setting -discover=0\n", __func__);
    }

    // Read asmap file by default on DragonX
    if (GetArg("-asmap",1)) {
        fs::path asmap_path = fs::path(GetArg("-asmap", ""));

        char cwd[1024];
        bool ret         = getcwd(cwd, sizeof(cwd));
        fs::path pwd     = fs::path(cwd);
        fs::path contrib = pwd / ".." / "contrib" / "asmap";

        // If no asmap given (default), look for one
        // First we look in PWD, the most common case (binaries)
        // Then we look in /usr/share/hush, for Debian packages
        // then we look in ../contrib/asmap/ for compiling from source case
        // finally we try the parent directory .. as a last resort
        // if no asmap can be found, something is wrong, and we exit
        if (asmap_path.empty()) {
            // Most binaries will have it in PWD
            asmap_path = pwd / DEFAULT_ASMAP_FILENAME;
            LogPrint("net", "%s: looking for asmap file at %s\n", __func__, asmap_path.string().c_str() );
            if(fs::exists(asmap_path)) {
                LogPrint("net", "%s: found asmap file at %s\n", __func__, asmap_path.string().c_str() );
            } else {
                // Debian Packages
                asmap_path = fs::path("/usr/share/hush") / DEFAULT_ASMAP_FILENAME;
                LogPrint("net", "%s: looking for asmap file at %s\n", __func__, asmap_path.string().c_str() );
                if(fs::exists(asmap_path)) {
                    LogPrint("net", "%s: found asmap file at %s\n", __func__, asmap_path.string().c_str() );
                } else {
                    // Source code
                    asmap_path = contrib / DEFAULT_ASMAP_FILENAME;
                    LogPrint("net", "%s: looking for asmap file at %s\n", __func__, asmap_path.string().c_str() );
                    if(fs::exists(asmap_path)) {
                        LogPrint("net", "%s: found asmap file at %s\n", __func__, asmap_path.string().c_str() );
                    } else {
                        // Last Resort: Check the parent directory
                        asmap_path = pwd / ".." / DEFAULT_ASMAP_FILENAME;
                        LogPrint("net", "%s: looking for asmap file at %s\n", __func__, asmap_path.string().c_str() );
                        if(fs::exists(asmap_path)) {
                            LogPrint("net", "%s: found asmap file at %s\n", __func__, asmap_path.string().c_str() );
                        } else {
                            // Mac SD
                            asmap_path = fs::path("/Applications/SilentDragon.app/Contents/MacOS/") / DEFAULT_ASMAP_FILENAME;
                            LogPrint("net", "%s: looking for asmap file at %s\n", __func__, asmap_path.string().c_str() );
                            if(fs::exists(asmap_path)) {
                                LogPrint("net", "%s: found asmap file at %s\n", __func__, asmap_path.string().c_str() );
                            } else {
                                // No asmap file found in any known location; abort startup.
                                InitError(strprintf(_("Could not find any asmap file! Please report this bug to DragonX Developers")));
                                return false;
                            }
                        }
                    }
                }
            }
        } else {
            if (!asmap_path.is_absolute()) {
                asmap_path = GetDataDir() / asmap_path;
            }
            LogPrint("net", "%s: looking for custom asmap file at %s\n", __func__, asmap_path.string().c_str() );
        }

        //TODO: verify asmap_path is not a directory
        if (!fs::exists(asmap_path)) {
            InitError(strprintf(_("Could not find asmap file %s"), asmap_path));
            return false;
        }
        std::vector<bool> asmap = CAddrMan::DecodeAsmap(asmap_path);
        if (asmap.size() == 0) {
            InitError(strprintf(_("Could not parse asmap file %s"), asmap_path));
            return false;
        }
        const uint256 asmap_version = SerializeHash(asmap);
        LogPrint("net", "%s: asmap version=%s with %lu mappings\n", __func__, asmap_version.ToString().c_str(), asmap.size());
        LogPrintf("Using asmap version %s for IP bucketing with %lu mappings\n", asmap_version.ToString(), asmap.size());
        addrman.m_asmap = std::move(asmap); // //node.connman->SetAsmap(std::move(asmap));

    } else {
        LogPrintf("Using /16 prefix for IP bucketing, but why?\n");
    }

    if (GetBoolArg("-salvagewallet", false)) {
        // Rewrite just private keys: rescan to find transactions
        if (SoftSetBoolArg("-rescan", true))
            LogPrintf("%s: parameter interaction: -salvagewallet=1 -> setting -rescan=1\n", __func__);
    }

    // -zapwallettx implies a rescan
    if (GetBoolArg("-zapwallettxes", false)) {
        if (SoftSetBoolArg("-rescan", true))
            LogPrintf("%s: parameter interaction: -zapwallettxes=<mode> -> setting -rescan=1\n", __func__);
    }

    // Make sure enough file descriptors are available
    int nBind = std::max((int)mapArgs.count("-bind") + (int)mapArgs.count("-allowbind"), 1);
    nMaxConnections = GetArg("-maxconnections", DEFAULT_MAX_PEER_CONNECTIONS);
    nMaxConnections = std::max(std::min(nMaxConnections, (int)(FD_SETSIZE - nBind - MIN_CORE_FILEDESCRIPTORS)), 0);
    int nFD = RaiseFileDescriptorLimit(nMaxConnections + MIN_CORE_FILEDESCRIPTORS);
    LogPrintf("nMaxConnections %d FD_SETSIZE.%d nBind.%d expr.%d \n",nMaxConnections,FD_SETSIZE,nBind,(int)(FD_SETSIZE - nBind - MIN_CORE_FILEDESCRIPTORS));
    if (nFD < MIN_CORE_FILEDESCRIPTORS)
        return InitError(_("Not enough file descriptors available."));
    if (nFD - MIN_CORE_FILEDESCRIPTORS < nMaxConnections)
        nMaxConnections = nFD - MIN_CORE_FILEDESCRIPTORS;
    // if using block pruning, then disable txindex
    // also disable the wallet (for now, until SPV support is implemented in wallet)
    if (GetArg("-prune", 0)) {
        if (GetBoolArg("-txindex", true))
            return InitError(_("Prune mode is incompatible with -txindex."));
#ifdef ENABLE_WALLET
        if (!GetBoolArg("-disablewallet", false)) {
            if (SoftSetBoolArg("-disablewallet", true))
                LogPrintf("%s : parameter interaction: -prune -> setting -disablewallet=1\n", __func__);
            else
                return InitError(_("Can't run with a wallet in prune mode."));
        }
#endif
    }

      if (mapArgs.count("-txsend")) {
        if (GetBoolArg("-walletbroadcast", true))  {
            if (SoftSetBoolArg("-walletbroadcast", false)) {
                LogPrintf("%s: parameter interaction: -txsend=<cmd> -> setting -walletbroadcast=0\n", __func__);
            } else {
                return InitError(_("Wallet transaction broadcasting is incompatible with -txsend (for privacy)."));
            }
        }
    }

    // ********************************************************* Step 3: parameter-to-internal-flags

    fZdebug=GetBoolArg("-zdebug", false);

    fDebug = !mapMultiArgs["-debug"].empty();
    // Special-case: if -debug=0/-nodebug is set, turn off debugging messages
    const vector<string>& categories = mapMultiArgs["-debug"];
    if (GetBoolArg("-nodebug", false) || find(categories.begin(), categories.end(), string("0")) != categories.end())
        fDebug = false;

    // Special case: if debug=zrpcunsafe, implies debug=zrpc, so add it to debug categories
    if (find(categories.begin(), categories.end(), string("zrpcunsafe")) != categories.end()) {
        if (find(categories.begin(), categories.end(), string("zrpc")) == categories.end()) {
            LogPrintf("%s: parameter interaction: setting -debug=zrpcunsafe -> -debug=zrpc\n", __func__);
            vector<string>& v = mapMultiArgs["-debug"];
            v.push_back("zrpc");
        }
    }
    if (find(categories.begin(), categories.end(), string("randomx")) != categories.end()) {
        fRandomXDebug = true;
        LogPrintf("%s: enabled randomx debug\n", __func__);
    }

    // Check for -debugnet
    if (GetBoolArg("-debugnet", false))
        InitWarning(_("Warning: Unsupported argument -debugnet ignored, use -debug=net."));
    // Check for -socks - as this is a privacy risk to continue, exit here
    if (mapArgs.count("-socks"))
        return InitError(_("Error: Unsupported argument -socks found. Setting SOCKS version isn't possible anymore, only SOCKS5 proxies are supported."));
    // Check for -tor - as this is a privacy risk to continue, exit here
    if (GetBoolArg("-tor", false))
        return InitError(_("Error: Unsupported argument -tor found, use -onion."));

    if (GetBoolArg("-benchmark", false))
        InitWarning(_("Warning: Unsupported argument -benchmark ignored, use -debug=bench."));

    // Checkmempool and checkblockindex default to true in regtest mode
    int ratio = std::min<int>(std::max<int>(GetArg("-checkmempool", chainparams.DefaultConsistencyChecks() ? 1 : 0), 0), 1000000);
    if (ratio != 0) {
        mempool.setSanityCheck(1.0 / ratio);
    }
    fCheckBlockIndex = GetBoolArg("-checkblockindex", chainparams.DefaultConsistencyChecks());
    // Regtest inherits the DRAGONX *mainnet* checkpoint set (chainparams_commandline applies it
    // for every SMART_CHAIN_SYMBOL=="DRAGONX" network, regardless of -regtest), whose top height
    // ~3.2M would otherwise pin an isolated regtest chain in IsInitialBlockDownload() forever --
    // disabling the ChainTip auto-ops (autoshield/sweep/consolidation) and the below-checkpoint
    // script-check skip. Default checkpoints OFF on regtest so a fresh regtest node leaves IBD
    // normally; still overridable with -checkpoints=1.
    fCheckpointsEnabled = GetBoolArg("-checkpoints", chainparams.NetworkIDString() != "regtest");

    // -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency
    nScriptCheckThreads = GetArg("-par", DEFAULT_SCRIPTCHECK_THREADS);
    if (nScriptCheckThreads <= 0)
        nScriptCheckThreads += GetNumCores();
    if (nScriptCheckThreads <= 1)
        nScriptCheckThreads = 0;
    else if (nScriptCheckThreads > MAX_SCRIPTCHECK_THREADS)
        nScriptCheckThreads = MAX_SCRIPTCHECK_THREADS;

    // Parallel RandomX pre-verification threads (speeds up post-checkpoint sync). Defaults to the
    // script-check thread count — RandomX pre-verify and script checks do not run simultaneously
    // within a single connect, so they can share the same budget. 0 disables (inline-only).
    nRandomXVerifyThreads = GetArg("-randomxverifythreads", nScriptCheckThreads);
    if (nRandomXVerifyThreads < 0)
        nRandomXVerifyThreads = 0;
    else if (nRandomXVerifyThreads > MAX_SCRIPTCHECK_THREADS)
        nRandomXVerifyThreads = MAX_SCRIPTCHECK_THREADS;

    // Per-peer block-download window (see MAX_BLOCKS_IN_TRANSIT_PER_PEER). Raising this lifts
    // the bandwidth-delay-product ceiling on high-latency peers during IBD. Clamp to a sane range.
    MAX_BLOCKS_IN_TRANSIT_PER_PEER = GetArg("-maxblocksintransit", DEFAULT_MAX_BLOCKS_IN_TRANSIT_PER_PEER);
    if (MAX_BLOCKS_IN_TRANSIT_PER_PEER < 1)
        MAX_BLOCKS_IN_TRANSIT_PER_PEER = 1;
    else if (MAX_BLOCKS_IN_TRANSIT_PER_PEER > (int)BLOCK_DOWNLOAD_WINDOW) {
        // Values above BLOCK_DOWNLOAD_WINDOW are a silent no-op: FindNextBlocksToDownload never fetches
        // beyond pindexLastCommonBlock + BLOCK_DOWNLOAD_WINDOW, so clamp to the real effective ceiling.
        LogPrintf("-maxblocksintransit=%d exceeds the effective ceiling BLOCK_DOWNLOAD_WINDOW=%u; clamping\n", MAX_BLOCKS_IN_TRANSIT_PER_PEER, BLOCK_DOWNLOAD_WINDOW);
        MAX_BLOCKS_IN_TRANSIT_PER_PEER = (int)BLOCK_DOWNLOAD_WINDOW;
    }
    LogPrintf("Per-peer max blocks in transit: %d\n", MAX_BLOCKS_IN_TRANSIT_PER_PEER);

    // Opt-in bulk block streaming (DragonX). Drives the requester branch in SendMessages and, when
    // set, also advertises NODE_BULKBLOCKS below so we serve bulk ranges to peers. OFF by default.
    fBulkBlockSync = GetBoolArg("-bulkblocksync", DEFAULT_BULKBLOCKSYNC);
    LogPrintf("Bulk block streaming: %s\n", fBulkBlockSync ? "enabled" : "disabled");

    fServer = GetBoolArg("-server", false);

    // block pruning; get the amount of disk space (in MB) to allot for block & undo files
    int64_t nSignedPruneTarget = GetArg("-prune", 0) * 1024 * 1024;
    if (nSignedPruneTarget < 0) {
        return InitError(_("Prune cannot be configured with a negative value."));
    }
    nPruneTarget = (uint64_t) nSignedPruneTarget;
    if (nPruneTarget) {
        if (nPruneTarget < MIN_DISK_SPACE_FOR_BLOCK_FILES) {
            return InitError(strprintf(_("Prune configured below the minimum of %d MB.  Please use a higher number."), MIN_DISK_SPACE_FOR_BLOCK_FILES / 1024 / 1024));
        }
        LogPrintf("Prune configured to target %uMiB on disk for block and undo files.\n", nPruneTarget / 1024 / 1024);
        fPruneMode = true;
    }

    RegisterAllCoreRPCCommands(tableRPC);
#ifdef ENABLE_WALLET
    bool fDisableWallet = GetBoolArg("-disablewallet", false);
    if ( HUSH_NSPV_SUPERLITE )
    {
        fDisableWallet = true;
        nLocalServices = 0;
    }
    if (!fDisableWallet)
        RegisterWalletRPCCommands(tableRPC);
#endif

    nConnectTimeout = GetArg("-timeout", DEFAULT_CONNECT_TIMEOUT);
    if (nConnectTimeout <= 0)
        nConnectTimeout = DEFAULT_CONNECT_TIMEOUT;

    // Fee-per-kilobyte amount considered the same as "free"
    // If you are mining, be careful setting this:
    // if you set it to zero then
    // a transaction spammer can cheaply fill blocks using
    // 1-satoshi-fee transactions. It should be set above the real
    // cost to you of processing a transaction.
    if (mapArgs.count("-minrelaytxfee"))
    {
        CAmount n = 0;
        if (ParseMoney(mapArgs["-minrelaytxfee"], n) && n > 0)
            ::minRelayTxFee = CFeeRate(n);
        else
            return InitError(strprintf(_("Invalid amount for -minrelaytxfee=<amount>: '%s'"), mapArgs["-minrelaytxfee"]));
    }

#ifdef ENABLE_WALLET
    if (mapArgs.count("-mintxfee"))
    {
        CAmount n = 0;
        if (ParseMoney(mapArgs["-mintxfee"], n) && n > 0)
            CWallet::minTxFee = CFeeRate(n);
        else
            return InitError(strprintf(_("Invalid amount for -mintxfee=<amount>: '%s'"), mapArgs["-mintxfee"]));
    }
    if (mapArgs.count("-paytxfee"))
    {
        CAmount nFeePerK = 0;
        if (!ParseMoney(mapArgs["-paytxfee"], nFeePerK))
            return InitError(strprintf(_("Invalid amount for -paytxfee=<amount>: '%s'"), mapArgs["-paytxfee"]));
        if (nFeePerK > nHighTransactionFeeWarning)
            InitWarning(_("Warning: -paytxfee is set very high! This is the transaction fee you will pay if you send a transaction."));
        payTxFee = CFeeRate(nFeePerK, 1000);
        if (payTxFee < ::minRelayTxFee)
        {
            return InitError(strprintf(_("Invalid amount for -paytxfee=<amount>: '%s' (must be at least %s)"),
                                       mapArgs["-paytxfee"], ::minRelayTxFee.ToString()));
        }
    }
    if (mapArgs.count("-maxtxfee"))
    {
        CAmount nMaxFee = 0;
        if (!ParseMoney(mapArgs["-maxtxfee"], nMaxFee))
            return InitError(strprintf(_("Invalid amount for -maxtxfee=<amount>: '%s'"), mapArgs["-maptxfee"]));
        if (nMaxFee > nHighTransactionMaxFeeWarning)
            InitWarning(_("Warning: -maxtxfee is set very high! Fees this large could be paid on a single transaction."));
        maxTxFee = nMaxFee;
        if (CFeeRate(maxTxFee, 1000) < ::minRelayTxFee)
        {
            return InitError(strprintf(_("Invalid amount for -maxtxfee=<amount>: '%s' (must be at least the minrelay fee of %s to prevent stuck transactions)"),
                                       mapArgs["-maxtxfee"], ::minRelayTxFee.ToString()));
        }
    }
    nTxConfirmTarget = GetArg("-txconfirmtarget", DEFAULT_TX_CONFIRM_TARGET);
    expiryDelta = GetArg("-txexpirydelta", DEFAULT_TX_EXPIRY_DELTA);
    bSpendZeroConfChange = GetBoolArg("-spendzeroconfchange", true);
    fSendFreeTransactions = GetBoolArg("-sendfreetransactions", false);

    std::string strWalletFile = GetArg("-wallet", "wallet.dat");
#endif // ENABLE_WALLET

    fIsBareMultisigStd = GetBoolArg("-permitbaremultisig", true);
    nMaxDatacarrierBytes = GetArg("-datacarriersize", nMaxDatacarrierBytes);

    // Option to startup with mocktime set (used for regression testing):
    SetMockTime(GetArg("-mocktime", 0)); // SetMockTime(0) is a no-op

    if ( HUSH_NSPV_FULLNODE )
    {
        if (GetBoolArg("-peerbloomfilters", true))
            nLocalServices |= NODE_BLOOM;
    }
    nMaxTipAge = GetArg("-maxtipage", DEFAULT_MAX_TIP_AGE);

#ifdef ENABLE_MINING
    if (mapArgs.count("-mineraddress")) {
        CTxDestination addr = DecodeDestination(mapArgs["-mineraddress"]);
        if (!IsValidDestination(addr)) {
            return InitError(strprintf(
                _("Invalid address for -mineraddress=<addr>: '%s' (must be a transparent address)"),
                mapArgs["-mineraddress"]));
        }
    }
#endif

    // Default value of 0 for mempooltxinputlimit means no limit is applied
    if (mapArgs.count("-mempooltxinputlimit")) {
        int64_t limit = GetArg("-mempooltxinputlimit", 0);
        if (limit < 0) {
            return InitError(_("Mempool limit on transparent inputs to a transaction cannot be negative"));
        } else if (limit > 0) {
            LogPrintf("Mempool configured to reject transactions with greater than %lld transparent inputs\n", limit);
        }
    }

    if (!mapMultiArgs["-nuparams"].empty()) {
        // Allow overriding network upgrade parameters for testing
        if (Params().NetworkIDString() != "regtest") {
            return InitError("Network upgrade parameters may only be overridden on regtest.");
        }
        const vector<string>& deployments = mapMultiArgs["-nuparams"];
        for (auto i : deployments) {
            std::vector<std::string> vDeploymentParams;
            boost::split(vDeploymentParams, i, boost::is_any_of(":"));
            if (vDeploymentParams.size() != 2) {
                return InitError("Network upgrade parameters malformed, expecting hexBranchId:activationHeight");
            }
            int nActivationHeight;
            if (!ParseInt32(vDeploymentParams[1], &nActivationHeight)) {
                return InitError(strprintf("Invalid nActivationHeight (%s)", vDeploymentParams[1]));
            }
            bool found = false;
            // Exclude Sprout from upgrades
            for (auto i = Consensus::BASE_SPROUT + 1; i < Consensus::MAX_NETWORK_UPGRADES; ++i)
            {
                if (vDeploymentParams[0].compare(HexInt(NetworkUpgradeInfo[i].nBranchId)) == 0) {
                    UpdateNetworkUpgradeParameters(Consensus::UpgradeIndex(i), nActivationHeight);
                    found = true;
                    LogPrintf("Setting network upgrade activation parameters for %s to height=%d\n", vDeploymentParams[0], nActivationHeight);
                    break;
                }
            }
            if (!found) {
                return InitError(strprintf("Invalid network upgrade (%s)", vDeploymentParams[0]));
            }
        }
    }

    // ********************************************************* Step 4: application initialization: dir lock, daemonize, pidfile, debug log

    // Initialize libsodium
    if (init_and_check_sodium() == -1) {
		fprintf(stderr,"%s: libsodium init failed!\n", __FUNCTION__);
        return false;
    }

    // Initialize elliptic curve code
    ECC_Start();
    globalVerifyHandle.reset(new ECCVerifyHandle());

    std::string sha256_algo = SHA256AutoDetect();
    LogPrintf("Using the '%s' SHA256 implementation\n", sha256_algo);

    // Sanity check
    if (!InitSanityCheck())
        return InitError(_("Initialization sanity check failed. Please check for insanity. DragonX is shutting down!"));

    std::string strDataDir = GetDataDir().string();
#ifdef ENABLE_WALLET
    // Wallet file must be a plain filename without a directory
    if (strWalletFile != boost::filesystem::basename(strWalletFile) + boost::filesystem::extension(strWalletFile))
        return InitError(strprintf(_("Wallet %s resides outside data directory %s"), strWalletFile, strDataDir));
#endif
    // Make sure only a single DragonX process is using the data directory.
    boost::filesystem::path pathLockFile = GetDataDir() / ".lock";
    FILE* file = fopen(pathLockFile.string().c_str(), "a"); // empty lock file; created if it doesn't exist.
    if (file) fclose(file);


    LogPrintf("Attempting to obtain lock %s\n", pathLockFile.string().c_str());
    try {
        static boost::interprocess::file_lock lock(pathLockFile.string().c_str());
        if (!lock.try_lock())
            return InitError(strprintf(_("Cannot obtain a lock on data directory %s. Full node is probably already running."), strDataDir));
    } catch(const boost::interprocess::interprocess_exception& e) {
        return InitError(strprintf(_("Cannot obtain a lock on data directory %s. Full node is probably already running.") + " %s.", strDataDir, e.what()));
    }

#ifndef _WIN32
    CreatePidFile(GetPidFile(), getpid());
#endif
    if (GetBoolArg("-shrinkdebugfile", !fDebug))
        ShrinkDebugFile();


    LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
    LogPrintf("DragonX version %s\n", FormatFullVersion());

    if (fPrintToDebugLog)
        OpenDebugLog();
    LogPrintf("Using WolfSSL version %s\n", wolfSSL_lib_version());
#ifdef ENABLE_WALLET
    LogPrintf("Using BerkeleyDB version %s\n", DbEnv::version(0, 0, 0));
#endif
    if (!fLogTimestamps)
        LogPrintf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime()));
    LogPrintf("Default data directory %s\n", GetDefaultDataDir().string());
    LogPrintf("Using data directory %s\n", strDataDir);
    LogPrintf("Using config file %s\n", GetConfigFile().string());
    LogPrintf("Using at most %i connections (%i file descriptors available)\n", nMaxConnections, nFD);
    std::ostringstream strErrors;

    LogPrintf("Using %u threads for script verification\n", nScriptCheckThreads);
    if (nScriptCheckThreads) {
        for (int i=0; i<nScriptCheckThreads-1; i++)
            threadGroup.create_thread(&ThreadScriptCheck);
    }

    // Spawn the parallel RandomX pre-verification worker pool (the connect thread joins as the Nth
    // worker via CCheckQueueControl::Wait, so spawn N-1 here, mirroring ThreadScriptCheck).
    if (ASSETCHAINS_ALGO == ASSETCHAINS_RANDOMX && nRandomXVerifyThreads > 0) {
        LogPrintf("Using %u threads for parallel RandomX pre-verification\n", nRandomXVerifyThreads);
        for (int i = 0; i < nRandomXVerifyThreads - 1; i++)
            threadGroup.create_thread(&ThreadRandomXVerify);
    }


    // Start the lightweight task scheduler thread
    CScheduler::Function serviceLoop = boost::bind(&CScheduler::serviceQueue, &scheduler);
    threadGroup.create_thread(boost::bind(&TraceThread<CScheduler::Function>, "scheduler", serviceLoop));

    // Count uptime
    MarkStartTime();

    if ((chainparams.NetworkIDString() != "regtest") &&
            GetBoolArg("-showmetrics", 0) &&
            !fPrintToConsole && !GetBoolArg("-daemon", false)) {
        // Start the persistent metrics interface
        ConnectMetricsScreen();
        threadGroup.create_thread(&ThreadShowMetricsScreen);
    }


    if ( HUSH_NSPV_FULLNODE )
    {
        // Initialize Zcash circuit parameters
        ZC_LoadParams(chainparams);
    }
    /* Start the RPC server already.  It will be started in "warmup" mode
     * and not really process calls already (but it will signify connections
     * that the server is there and will be ready later).  Warmup mode will
     * be disabled when initialisation is finished.
     */
    if (fServer)
    {
        uiInterface.InitMessage.connect(SetRPCWarmupStatus);
        if (!AppInitServers(threadGroup))
            return InitError(_("Unable to start HTTP server. See debug log for details."));
    }

    int64_t nStart;

    // ********************************************************* Step 5: verify wallet database integrity
#ifdef ENABLE_WALLET
    if (!fDisableWallet) {
        LogPrintf("Using wallet %s\n", strWalletFile);
        uiInterface.InitMessage(_("Verifying wallet..."));

        std::string warningString;
        std::string errorString;

        if (!CWallet::Verify(strWalletFile, warningString, errorString)) {
            uiInterface.InitMessage(_("Verification failed!"));
            return false;
        }

        if (!warningString.empty())
            InitWarning(warningString);
        if (!errorString.empty())
            return InitError(warningString);

    } // (!fDisableWallet)
#endif // ENABLE_WALLET
    // ********************************************************* Step 6: network initialization

    RegisterNodeSignals(GetNodeSignals());

    // sanitize comments per BIP-0014, format user agent and check total size
    std::vector<string> uacomments;
    BOOST_FOREACH(string cmt, mapMultiArgs["-uacomment"])
    {
        if (cmt != SanitizeString(cmt, SAFE_CHARS_UA_COMMENT))
            return InitError(strprintf("User Agent comment (%s) contains unsafe characters.", cmt));
        uacomments.push_back(SanitizeString(cmt, SAFE_CHARS_UA_COMMENT));
    }
    strSubVersion = FormatSubVersion(GetArg("-clientname","DragonX"), CLIENT_VERSION, uacomments);
    if (strSubVersion.size() > MAX_SUBVERSION_LENGTH) {
        return InitError(strprintf("Total length of network version string %i exceeds maximum of %i characters. Reduce the number and/or size of uacomments.",
            strSubVersion.size(), MAX_SUBVERSION_LENGTH));
    }

    // Disable clearnet peers if -clearnet=0 for this node or -ac_clearnet=0 for this chain
    if (ASSETCHAINS_CLEARNET == 0 || !GetBoolArg("-clearnet", DEFAULT_CLEARNET)) {
#ifdef ENABLE_MINING
        // mining to the same taddr links different txs together as from the same owner
        // and if using -clearnet=0 that can be used to link together different .onions
        // as being the same entity, because they are mining to the same taddr
        if (mapArgs.count("-mineraddress")) {
            return InitError(_("-mineraddress and -clearnet=0 cannot be used together because it would reduce your privacy!"));
        }
#endif
        SoftSetBoolArg("-disableipv4", true);
        SoftSetBoolArg("-disableipv6", true);
        SoftSetBoolArg("-dns", false);
        SoftSetBoolArg("-dnsseed", false);
        SoftSetArg("-bind", "127.0.0.1");
        SoftSetArg("-onlynet", "onion");
        SoftSetArg("-onlynet", "i2p");
        SoftSetArg("-onion", "127.0.0.1:9050");
        SoftSetArg("-i2psam", "127.0.0.1:7656");
    }

    if (mapArgs.count("-onlynet")) {
        std::set<enum Network> nets;
        BOOST_FOREACH(const std::string& snet, mapMultiArgs["-onlynet"]) {
            enum Network net = ParseNetwork(snet);
            if (net == NET_UNROUTABLE) {
                return InitError(strprintf(_("Unknown network specified in -onlynet: '%s'"), snet));
            } else if (net == NET_IPV4 && GetBoolArg("-disableipv4", DEFAULT_DISABLE_IPV4)) {
                return InitError(strprintf(_("-onlynet=ipv4 is incompatible with -disableipv4 !")));
            } else if (net == NET_IPV6 && GetBoolArg("-disableipv6", DEFAULT_DISABLE_IPV4)) {
                return InitError(strprintf(_("-onlynet=ipv6 is incompatible with -disableipv6 !")));
            }
            nets.insert(net);
        }
        for (int n = 0; n < NET_MAX; n++) {
            enum Network net = (enum Network)n;
            if (!nets.count(net))
                SetReachable(net, false);
        }
    }

    if(mapMultiArgs["-disableipv6"].size() > 1) {
        return InitError("-disableipv6 can only be used once");
    }

    if(mapMultiArgs["-disableipv4"].size() > 1) {
        return InitError("-disableipv4 can only be used once");
    }

    if (GetBoolArg("-disableipv6", DEFAULT_DISABLE_IPV6)) {
        SetReachable(NET_IPV6, false);
    }

    if (GetBoolArg("-disableipv4", DEFAULT_DISABLE_IPV4)) {
        SetReachable(NET_IPV4, false);
    }

    if (mapArgs.count("-allowlist")) {
        BOOST_FOREACH(const std::string& net, mapMultiArgs["-allowlist"]) {
            CSubNet subnet;
            LookupSubNet(net.c_str(), subnet);
            if (!subnet.IsValid())
                return InitError(strprintf(_("Invalid netmask specified in -allowlist: '%s'"), net));
            CNode::AddAllowlistedRange(subnet);
        }
    }

    bool proxyRandomize = GetBoolArg("-proxyrandomize", true);
    // -proxy sets a proxy for all outgoing network traffic
    // -noproxy (or -proxy=0) as well as the empty string can be used to not set a proxy, this is the default
    std::string proxyArg = GetArg("-proxy", "");
    SetReachable(NET_ONION,false);
    if (proxyArg != "" && proxyArg != "0") {
        CService resolved(LookupNumeric(proxyArg.c_str(), 9050));
        proxyType addrProxy = proxyType(resolved, proxyRandomize);
        if (!addrProxy.IsValid())
            return InitError(strprintf(_("Invalid -proxy address: '%s'"), proxyArg));

        SetProxy(NET_IPV4, addrProxy);
        SetProxy(NET_IPV6, addrProxy);
        SetProxy(NET_ONION, addrProxy);
        SetNameProxy(addrProxy);
        SetReachable(NET_ONION, true); // by default, -proxy sets onion as reachable, unless -noonion later
    }

    const std::string& i2psam_arg = GetArg("-i2psam", "");
    if (!i2psam_arg.empty()) {
        CService addr;
        if (!Lookup(i2psam_arg.c_str(), addr, 7656, fNameLookup) || !addr.IsValid()) {
            return InitError(strprintf(_("Invalid -i2psam address or hostname: '%s'"), i2psam_arg));
        }
        SetReachable(NET_I2P, true);
        SetProxy(NET_I2P, proxyType{addr});
    } else {
        SetReachable(NET_I2P, false);
    }

    // -onion can be used to set only a proxy for .onion, or override normal proxy for .onion addresses
    // -noonion (or -onion=0) disables connecting to .onion entirely
    // An empty string is used to not override the onion proxy (in which case it defaults to -proxy set above, or none)
    std::string onionArg = GetArg("-onion", "");
    if (onionArg != "") {
        if (onionArg == "0") { // Handle -noonion/-onion=0
            SetReachable(NET_ONION,false); // set onions as unreachable
        } else {
            CService resolved(LookupNumeric(onionArg.c_str(), 9050));
            proxyType addrOnion = proxyType(resolved, proxyRandomize);
            if (!addrOnion.IsValid())
                return InitError(strprintf(_("Invalid -onion address: '%s'"), onionArg));
            SetProxy(NET_ONION, addrOnion);
            SetReachable(NET_ONION, true);
        }
    }

    // see Step 2: parameter interactions for more information about these
    fListen = GetBoolArg("-listen", DEFAULT_LISTEN);
    fDiscover = GetBoolArg("-discover", true);
    fNameLookup = GetBoolArg("-dns", true);

    bool fBound = false;
    if (fListen) {
        if (mapArgs.count("-bind") || mapArgs.count("-allowbind")) {
            BOOST_FOREACH(const std::string& strBind, mapMultiArgs["-bind"]) {
                CService addrBind;
                if (!Lookup(strBind.c_str(), addrBind, GetListenPort(), false))
                    return InitError(strprintf(_("Cannot resolve -bind address: '%s'"), strBind));
                fBound |= Bind(addrBind, (BF_EXPLICIT | BF_REPORT_ERROR));
            }
            BOOST_FOREACH(const std::string& strBind, mapMultiArgs["-allowbind"]) {
                CService addrBind;
                if (!Lookup(strBind.c_str(), addrBind, 0, false))
                    return InitError(strprintf(_("Cannot resolve -allowbind address: '%s'"), strBind));
                if (addrBind.GetPort() == 0)
                    return InitError(strprintf(_("Need to specify a port with -allowbind: '%s'"), strBind));
                fBound |= Bind(addrBind, (BF_EXPLICIT | BF_REPORT_ERROR | BF_ALLOWLIST));
            }
        } else {
            struct in_addr inaddr_any;
            inaddr_any.s_addr = INADDR_ANY;
            fBound |= Bind(CService(in6addr_any, GetListenPort()), BF_NONE);
            fBound |= Bind(CService(inaddr_any, GetListenPort()), !fBound ? BF_REPORT_ERROR : BF_NONE);
        }
        if (!fBound)
            return InitError(_("Failed to listen on any port. Use -listen=0 if you want this."));
    }

    if (mapArgs.count("-externalip")) {
        BOOST_FOREACH(const std::string& strAddr, mapMultiArgs["-externalip"]) {
            CService addrLocal;
            if (Lookup(strAddr.c_str(), addrLocal, GetListenPort(), fNameLookup) && addrLocal.IsValid()) {
                AddLocal(addrLocal, LOCAL_MANUAL);
            } else {
                return InitError(strprintf(_("Cannot resolve -externalip address: '%s'"), strAddr));
	    }
        }
    }


    BOOST_FOREACH(const std::string& strDest, mapMultiArgs["-seednode"])
        AddOneShot(strDest);

    if (mapArgs.count("-tlskeypath")) {
        boost::filesystem::path pathTLSKey(GetArg("-tlskeypath", ""));
    if (!boost::filesystem::exists(pathTLSKey))
         return InitError(strprintf(_("Cannot find TLS key file: '%s'"), pathTLSKey.string()));
    }

    if (mapArgs.count("-tlscertpath")) {
        boost::filesystem::path pathTLSCert(GetArg("-tlscertpath", ""));
    if (!boost::filesystem::exists(pathTLSCert))
        return InitError(strprintf(_("Cannot find TLS cert file: '%s'"), pathTLSCert.string()));
    }

    if (mapArgs.count("-tlstrustdir")) {
        boost::filesystem::path pathTLSTrustredDir(GetArg("-tlstrustdir", ""));
        if (!boost::filesystem::exists(pathTLSTrustredDir))
            return InitError(strprintf(_("Cannot find trusted certificates directory: '%s'"), pathTLSTrustredDir.string()));
        }

    if ( HUSH_NSPV_SUPERLITE )
    {
        std::vector<boost::filesystem::path> vImportFiles;
        threadGroup.create_thread(boost::bind(&ThreadImport, vImportFiles));
        StartNode(threadGroup, scheduler);
        pcoinsTip = new CCoinsViewCache(pcoinscatcher);
        InitBlockIndex();
        SetRPCWarmupFinished();
        uiInterface.InitMessage(_("Done loading"));
        pwalletMain = new CWallet("tmptmp.wallet");
        return !fRequestShutdown;
    }
    // ********************************************************* Step 7: load block chain

    fReindex = GetBoolArg("-reindex", false);

    boost::filesystem::path blocksDir = GetDataDir() / "blocks";
    if (!boost::filesystem::exists(blocksDir))
    {
        boost::filesystem::create_directories(blocksDir);
    }

    // block tree db settings
    int dbMaxOpenFiles = GetArg("-dbmaxopenfiles", DEFAULT_DB_MAX_OPEN_FILES);
    bool dbCompression = GetBoolArg("-dbcompression", DEFAULT_DB_COMPRESSION);

    LogPrintf("Block index database configuration:\n");
    LogPrintf("* Using %d max open files\n", dbMaxOpenFiles);
    LogPrintf("* Compression is %s\n", dbCompression ? "enabled" : "disabled");

    // cache size calculations
    int64_t nTotalCache = (GetArg("-dbcache", GetDefaultDbCacheMB()) << 20);
    nTotalCache = std::max(nTotalCache, nMinDbCache << 20); // total cache cannot be less than nMinDbCache
    nTotalCache = std::min(nTotalCache, nMaxDbCache << 20); // total cache cannot be greated than nMaxDbcache
    int64_t nBlockTreeDBCache = nTotalCache / 8;

    if (GetBoolArg("-addressindex", DEFAULT_ADDRESSINDEX) || GetBoolArg("-spentindex", DEFAULT_SPENTINDEX)) {
        // Give indexed (address/spent-index) nodes a larger index LevelDB read cache, but CAP it.
        // With adaptive dbcache, nTotalCache is now multi-GB, so 3/4 of it is several GB -- far more
        // than the index cache can use, while starving the in-memory UTXO set that actually speeds
        // IBD (and this chunk is not shrinkable by the memory-pressure controller, which only adjusts
        // the coins cache). Cap at 1 GiB so the adaptive budget flows to the coins cache. Tunable.
        nBlockTreeDBCache = nTotalCache * 3 / 4;
        if (nBlockTreeDBCache > ((int64_t)1024 << 20))
            nBlockTreeDBCache = ((int64_t)1024 << 20);
    } else {
        if (nBlockTreeDBCache > (1 << 21) && !GetBoolArg("-txindex", false)) {
            nBlockTreeDBCache = (1 << 21); // block tree db cache shouldn't be larger than 2 MiB
        }
    }
    nTotalCache -= nBlockTreeDBCache;
    int64_t nCoinDBCache = std::min(nTotalCache / 2, (nTotalCache / 4) + (1 << 23)); // use 25%-50% of the remainder for disk cache
    nTotalCache -= nCoinDBCache;
    nCoinCacheUsage = nTotalCache; // the rest goes to in-memory cache
    // Adaptive sizing: unless the user pinned -dbcache, grow/shrink the coins cache with free system
    // memory (AdjustCoinCacheForMemoryPressure), using the startup size as the ceiling.
    if (!mapArgs.count("-dbcache")) {
        g_nMaxCoinCacheUsage = nCoinCacheUsage;
        scheduler.scheduleEvery(&AdjustCoinCacheForMemoryPressure, 5);
        LogPrintf("* Adaptive dbcache enabled: ceiling %.0fMiB, keeping >= %lldMiB RAM free for the system\n",
                  nCoinCacheUsage * (1.0 / 1024 / 1024), (long long)GetMemoryReserveMB());
    }
    LogPrintf("Cache configuration:\n");
    LogPrintf("* Max cache setting possible %.1fMiB\n", nMaxDbCache);
    LogPrintf("* Using %.1fMiB for block index database\n", nBlockTreeDBCache * (1.0 / 1024 / 1024));
    LogPrintf("* Using %.1fMiB for chain state database\n", nCoinDBCache * (1.0 / 1024 / 1024));
    LogPrintf("* Using %.1fMiB for in-memory UTXO set\n", nCoinCacheUsage * (1.0 / 1024 / 1024));

    if ( fReindex == 0 )
    {
        bool checkval,fAddressIndex,fSpentIndex;
        pblocktree = new CBlockTreeDB(nBlockTreeDBCache, false, fReindex, dbCompression, dbMaxOpenFiles);
        fAddressIndex = GetBoolArg("-addressindex", DEFAULT_ADDRESSINDEX);
        pblocktree->ReadFlag("addressindex", checkval);
        if ( checkval != fAddressIndex && fAddressIndex != 0 )
        {
            pblocktree->WriteFlag("addressindex", fAddressIndex);
            LogPrintf("set addressindex, will reindex. could take a while.\n");
            fReindex = true;
        }
        fSpentIndex = GetBoolArg("-spentindex", DEFAULT_SPENTINDEX);
        pblocktree->ReadFlag("spentindex", checkval);
        if ( checkval != fSpentIndex && fSpentIndex != 0 )
        {
            pblocktree->WriteFlag("spentindex", fSpentIndex);
            LogPrintf("set spentindex, will reindex. could take a while.\n");
            fReindex = true;
        }
    }

    bool clearWitnessCaches = false;

    bool fLoaded = false;
    while (!fLoaded) {
        bool fReset = fReindex;
        std::string strLoadError;

        uiInterface.InitMessage(_("Loading block index..."));

        nStart = GetTimeMillis();
        do {
            try {
                UnloadBlockIndex();
                delete pcoinsTip;
                delete pcoinsdbview;
                delete pcoinscatcher;
                delete pblocktree;
                delete pnotarizations;

                pblocktree     = new CBlockTreeDB(nBlockTreeDBCache, false, fReindex, dbCompression, dbMaxOpenFiles);
                pcoinsdbview   = new CCoinsViewDB(nCoinDBCache, false, fReindex);
                pcoinscatcher  = new CCoinsViewErrorCatcher(pcoinsdbview);
                pcoinsTip      = new CCoinsViewCache(pcoinscatcher);
                try {
                    pnotarizations = new NotarizationDB(NOTARIZATION_DB_CACHE_BYTES, false, fReindex);
                } catch (const std::exception& e) {
                    // The notarizations (dPoW) DB is non-essential and node-regenerable. It has been seen to
                    // snapshot/flush torn (0-byte log -> leveldb "Database I/O error" on reopen), which
                    // previously aborted startup with a spurious "Error opening block database" and forced a
                    // full resync. Wipe and recreate it instead of failing hard.
                    LogPrintf("%s: notarizations DB failed to open (%s); moving aside and regenerating (non-fatal)\n", __FUNCTION__, e.what());
                    // Move (do NOT delete) the old DB aside, so a transient open failure (fd
                    // exhaustion, disk full, permissions) cannot permanently destroy notarization
                    // history. If the recreate below also fails it propagates as fatal and the old
                    // data survives in notarizations.corrupt for recovery.
                    {
                        boost::filesystem::path ndir = GetDataDir() / "notarizations";
                        boost::filesystem::remove_all(ndir.string() + ".corrupt");
                        boost::filesystem::rename(ndir, ndir.string() + ".corrupt");
                    }
                    pnotarizations = new NotarizationDB(NOTARIZATION_DB_CACHE_BYTES, false, true);
                }


                if (fReindex) {
                    boost::filesystem::remove(GetDataDir() / "hushstate");
                    boost::filesystem::remove(GetDataDir() / "hushsignedmasks");
                    pblocktree->WriteReindexing(true);
					LogPrintf("%s: Deleted hushstate and hushsignedmasks...\n", __FUNCTION__);

                    //If we're reindexing in prune mode, wipe away unusable block files and all undo data files
                    if (fPruneMode)
                        CleanupBlockRevFiles();
                }

				LogPrintf("%s: Loading block index...\n", __FUNCTION__);
                if (!LoadBlockIndex()) {
                    strLoadError = _("Error loading block database");
                    break;
                }

                // If the loaded chain has a wrong genesis, bail out immediately
                // (we're likely using a testnet datadir, or the other way around).
                if (!mapBlockIndex.empty() && mapBlockIndex.count(chainparams.GetConsensus().hashGenesisBlock) == 0)
                    return InitError(_("Incorrect or no genesis block found. Wrong datadir for network?"));
                hush_init(1);
                // Initialize the block index (no-op if non-empty database was already loaded)
                if (!InitBlockIndex()) {
                    strLoadError = _("Error initializing block database");
                    break;
                }

                HUSH_LOADINGBLOCKS = 0;
                // Check for changed -txindex state
                if (fTxIndex != GetBoolArg("-txindex", true)) {
                    strLoadError = _("You need to rebuild the database using -reindex to change -txindex");
                    break;
                }

                LogPrintf("zindex=%s in block index\n", fZindex ? "enabled" : "disabled");
                if (fZindex != GetBoolArg("-zindex", false)) {
                    strLoadError = _("You need to rebuild the database using -reindex to change -zindex");
                    break;
                }

                // Check for changed -prune state.  What we are concerned about is a user who has pruned blocks
                // in the past, but is now trying to run unpruned.
                if (fHavePruned && !fPruneMode) {
                    strLoadError = _("You need to rebuild the database using -reindex to go back to unpruned mode.  This will redownload the entire blockchain");
                    break;
                }
                
                if ( ASSETCHAINS_CC != 0 && HUSH_SNAPSHOT_INTERVAL != 0 && chainActive.Height() >= HUSH_SNAPSHOT_INTERVAL )
                {
                    if ( !hush_dailysnapshot(chainActive.Height()) )
                    {
                        strLoadError = _("daily snapshot failed, please reindex your chain.");
                        break;
                    }
                }

                if (!fReindex) {
                    uiInterface.InitMessage(_("Rewinding blocks if needed..."));
                    if (!RewindBlockIndex(chainparams, clearWitnessCaches)) {
                        strLoadError = _("Unable to rewind the database to a pre-upgrade state. You will need to redownload the blockchain");
                        break;
                    }
                }

                uiInterface.InitMessage(_("Verifying blocks..."));
                if (fHavePruned && GetArg("-checkblocks", 288) > MIN_BLOCKS_TO_KEEP) {
                    LogPrintf("Prune: pruned datadir may not have more than %d blocks; -checkblocks=%d may fail\n",
                        MIN_BLOCKS_TO_KEEP, GetArg("-checkblocks", 288));
                }
                if ( HUSH_REWIND == 0 )
                {
                    LogPrintf("Verifying block DB...");
                    if (!CVerifyDB().VerifyDB(pcoinsdbview, GetArg("-checklevel", 3), GetArg("-checkblocks", 288))) {
                        strLoadError = _("Corrupted block database detected");
                        break;
                    }
                }
            } catch (const std::exception& e) {
                LogPrintf("%s: Error opening block database: %s\n", __FUNCTION__, e.what());
                strLoadError = _("Error opening block database");
                break;
            }

            fLoaded = true;
        } while(false);

        if (!fLoaded) {
            // first suggest a reindex
            if (!fReset) {
			    LogPrintf("%s: error in hd data\n", __FUNCTION__);
                bool fRet = uiInterface.ThreadSafeMessageBox(
                    strLoadError + ".\n\n" + _("error in HDD data, might just need to update to latest, if that doesnt work, then you need to resync"),
                    "", CClientUIInterface::MSG_ERROR | CClientUIInterface::BTN_ABORT);
                if (fRet) {
                    fReindex = true;
                    fRequestShutdown = false;
                } else {
                    LogPrintf("Aborted block database rebuild. Exiting.\n");
                    return false;
                }
            } else {
                return InitError(strLoadError);
            }
        }
    }
    HUSH_LOADINGBLOCKS = 0;

    // As LoadBlockIndex can take several minutes, it's possible the user
    // requested to kill the GUI during the last operation. If so, exit.
    // As the program has not fully started yet, Shutdown() is possibly overkill.
    if (fRequestShutdown)
    {
        LogPrintf("Shutdown requested. Exiting.\n");
        return false;
    }
    LogPrintf(" block index %15dms\n", GetTimeMillis() - nStart);

    boost::filesystem::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME;
    CAutoFile est_filein(fopen(est_path.string().c_str(), "rb"), SER_DISK, CLIENT_VERSION);
    // Allowed to fail as this file IS missing on first startup.
    if (!est_filein.IsNull())
        mempool.ReadFeeEstimates(est_filein);
    fFeeEstimatesInitialized = true;


    // ********************************************************* Step 8: load wallet
#ifdef ENABLE_WALLET
    if (fDisableWallet) {
        pwalletMain = NULL;
        LogPrintf("Wallet disabled!\n");
    } else {

        // needed to restore wallet transaction meta data after -zapwallettxes
        std::vector<CWalletTx> vWtx;

        if (GetBoolArg("-zapwallettxes", false)) {
            uiInterface.InitMessage(_("Zapping all transactions from wallet..."));

            pwalletMain = new CWallet(strWalletFile);
            DBErrors nZapWalletRet = pwalletMain->ZapWalletTx(vWtx);
            if (nZapWalletRet != DB_LOAD_OK) {
                uiInterface.InitMessage(_("Error loading wallet.dat: Wallet corrupted"));
                return false;
            }

            delete pwalletMain;
            pwalletMain = NULL;
        }

        uiInterface.InitMessage(_("Loading wallet..."));

        nStart = GetTimeMillis();
        bool fFirstRun = true;
        pwalletMain = new CWallet(strWalletFile);
        DBErrors nLoadWalletRet = pwalletMain->LoadWallet(fFirstRun);
        if (nLoadWalletRet != DB_LOAD_OK)
        {
            if (nLoadWalletRet == DB_CORRUPT)
            {
                // Abort HERE, as the DB_NEED_REWRITE branch below already does. Falling through
                // runs several hundred more lines of initialisation against a wallet we have just
                // declared corrupt -- including SetHDSeedOrigin(), which WRITES to it, and the
                // rescan and SetBestChain that follow.
                //
                // The old text advised restoring with -mnemonic. That is wrong twice over:
                // -usemnemonic defaulted to 0 in v1.0.3 so many such wallets never had a phrase,
                // and SetHDSeedFromMnemonic refuses a non-empty wallet, so "move wallet.dat aside"
                // would discard every non-HD key the salvage preserved.
                strErrors << _("Error loading wallet.dat: the wallet database is corrupt. Your keys may "
                               "still be intact -- do NOT delete or replace wallet.dat. Back it up now, "
                               "and see debug.log for the specific record at fault.") << "\n";
                LogPrintf("%s", strErrors.str());
                return InitError(strErrors.str());
            }
            else if (nLoadWalletRet == DB_NONCRITICAL_ERROR)
            {
                string msg(_("Warning: error reading wallet.dat! All keys read correctly, but transaction data"
                             " or address book entries might be missing or incorrect."));
                InitWarning(msg);
            }
            else if (nLoadWalletRet == DB_TOO_NEW)
                strErrors << _("Error loading wallet.dat: Wallet requires newer version of DragonX") << "\n";
            else if (nLoadWalletRet == DB_NEED_REWRITE)
            {
                strErrors << _("Wallet needed to be rewritten: restart DragonX to complete") << "\n";
                LogPrintf("%s", strErrors.str());
                return InitError(strErrors.str());
            }
            else
                strErrors << _("Error loading wallet.dat") << "\n";
        }

        if (GetBoolArg("-upgradewallet", fFirstRun))
        {
            int nMaxVersion = GetArg("-upgradewallet", 0);
            if (nMaxVersion == 0) // the -upgradewallet without argument case
            {
                LogPrintf("Performing wallet upgrade to %i\n", FEATURE_LATEST);
                nMaxVersion = CLIENT_VERSION;
                pwalletMain->SetMinVersion(FEATURE_LATEST); // permanently upgrade the wallet immediately
            }
            else
                LogPrintf("Allowing wallet upgrade up to %i\n", nMaxVersion);
            if (nMaxVersion < pwalletMain->GetVersion())
                strErrors << _("Cannot downgrade wallet") << "\n";
            pwalletMain->SetMaxVersion(nMaxVersion);
        }

        if (!pwalletMain->HaveHDSeed())
        {
            // Does this wallet predate the seed we are about to install? If so,
            // that seed cannot appear in any backup the user already holds.
            // Checked BEFORE installing, and before the restore path pre-derives
            // its gap of keys.
            bool fWalletHadContent = false;
            {
                LOCK(pwalletMain->cs_wallet);
                std::set<CKeyID> setExistingKeys;
                pwalletMain->GetKeys(setExistingKeys);                     // keystore.h:60 / crypter.h:212
                std::set<libzcash::SaplingPaymentAddress> setExistingZAddrs;
                pwalletMain->GetSaplingPaymentAddresses(setExistingZAddrs); // keystore.h:226-238
                fWalletHadContent = !setExistingKeys.empty() ||
                                    !setExistingZAddrs.empty() ||
                                    !pwalletMain->mapWallet.empty() ||      // wallet.h:1041
                                    pwalletMain->IsCrypted();               // crypter.h:174
            }

            std::string mnemonic  = GetArg("-mnemonic", "");
            std::string hdSeedHex = GetArg("-hdseed", "");
            bool restoring = false;

            if (!mnemonic.empty() && !hdSeedHex.empty())
                return InitError(_("Specify only one of -mnemonic or -hdseed, not both"));

            if (!mnemonic.empty())
            {
                // Restore/create a wallet from a BIP39 seed phrase, byte-compatible
                // with SilentDragonXLite. Must be a fresh/empty wallet.
                if (!pwalletMain->SetHDSeedFromMnemonic(mnemonic))
                    return InitError(_("Invalid -mnemonic: expected a valid BIP39 English phrase on a fresh/empty wallet"));
                LogPrintf("%s: restoring wallet from -mnemonic seed phrase\n", __func__);
                restoring = true;
            }
            else if (!hdSeedHex.empty())
            {
                // Restore from a previously exported HD seed hex (z_exportwallet's
                // "# HDSeed=" line): 32 bytes (raw) or 64 bytes (BIP39-derived).
                if (!pwalletMain->SetHDSeedFromHex(hdSeedHex))
                    return InitError(_("Invalid -hdseed: expected a 32- or 64-hex-character seed on a fresh/empty wallet"));
                LogPrintf("%s: restoring wallet from -hdseed\n", __func__);
                restoring = true;
            }
            else
            {
                // generate a new HD seed
                pwalletMain->GenerateNewSeed();
            }

            pwalletMain->SetHDSeedOrigin(restoring
                ? CWallet::HDSEED_ORIGIN_RESTORED
                : (fWalletHadContent ? CWallet::HDSEED_ORIGIN_RETROFIT
                                     : CWallet::HDSEED_ORIGIN_CREATED));
            if (pwalletMain->hdSeedOrigin == CWallet::HDSEED_ORIGIN_RETROFIT)
            {
                LogPrintf("%s: WARNING: generated a new HD seed for a wallet that already held keys or "
                          "transactions. This seed is in NO backup you made before now.\n", __func__);
                InitWarning(_("A new HD seed was generated for this pre-existing wallet. Any backup you "
                              "made before now does not contain it: back the wallet up again "
                              "(z_exportwallet) before receiving funds to newly derived addresses."));
            }

            if (restoring)
            {
                // Pre-derive keys (birthday = genesis) so the startup rescan finds
                // funds paid to them: transparent coinbase + shielded notes.
                int64_t tGap = GetArg("-hdtransparentgaplimit", 1000);
                if (tGap < 0) tGap = 0;
                pwalletMain->TopUpHDTransparentKeys((unsigned int)tGap, 1);

                int64_t zGap = GetArg("-mnemonicsaplinggap", 100);
                if (zGap < 0) zGap = 0;
                {
                    LOCK(pwalletMain->cs_wallet);
                    for (int i = 0; i < (int)zGap; i++)
                        pwalletMain->GenerateNewSaplingZKey();
                }
                LogPrintf("%s: pre-derived %d transparent and %d sapling keys for restore rescan\n", __func__, (int)tGap, (int)zGap);
            }
        }
        else if (pwalletMain->hdSeedOrigin == CWallet::HDSEED_ORIGIN_UNRECORDED)
        {
            // The seed was installed by a build that predates this record, so
            // we cannot tell whether it was minted onto a pre-existing wallet
            // (and is therefore absent from the user's older backups). Assume
            // the worst; the user can still opt in explicitly.
            pwalletMain->SetHDSeedOrigin(CWallet::HDSEED_ORIGIN_UNKNOWN);
            LogPrintf("%s: HD seed predates seed-provenance recording; recorded origin as unknown\n", __func__);
        }

        //Set Sapling Consolidation
        pwalletMain->fSaplingConsolidationEnabled = GetBoolArg("-consolidation", false);
        if(pwalletMain->fSaplingConsolidationEnabled) {
            fConsolidationTxFee  = GetArg("-consolidationtxfee", DEFAULT_CONSOLIDATION_FEE);
            fConsolidationMapUsed = !mapMultiArgs["-consolidatesaplingaddress"].empty();

            int consolidationInterval = GetArg("-consolidationinterval", 25);
            if (consolidationInterval < 5) {
                LogPrintf("%s: Invalid consolidation interval of %d < 5, setting to default of 25\n", __func__, consolidationInterval);
                consolidationInterval = 25;
            }

            pwalletMain->consolidationInterval = consolidationInterval;
            pwalletMain->nextConsolidation     = pwalletMain->consolidationInterval + chainActive.Height();
            LogPrintf("%s: set nextConsolidation=%d\n", __func__, pwalletMain->nextConsolidation );

            //Validate Sapling Addresses
            vector<string>& vaddresses = mapMultiArgs["-consolidatesaplingaddress"];
            for (int i = 0; i < vaddresses.size(); i++) {
                LogPrintf("Consolidating Sapling Address: %s\n", vaddresses[i]);
                auto zAddress = DecodePaymentAddress(vaddresses[i]);
                if (!IsValidPaymentAddress(zAddress)) {
                    return InitError("Invalid consolidation address");
                }
            }
        }

        //Set Sweep
        pwalletMain->fSweepEnabled = GetBoolArg("-zsweep", false);

        if (pwalletMain->fSweepEnabled) {
            int sweepInterval = GetArg("-zsweepinterval", 10);
            if (sweepInterval < 5) {
                LogPrintf("%s: Invalid sweep interval of %d, setting to default of 10\n", __func__, sweepInterval);
                sweepInterval = 10;
            }
            pwalletMain->sweepInterval = sweepInterval;
            pwalletMain->nextSweep     = pwalletMain->sweepInterval + chainActive.Height();
            LogPrintf("%s: set nextSweep=%d with sweepInterval=%d\n", __func__, pwalletMain->nextSweep, pwalletMain->sweepInterval );
            fSweepTxFee  = GetArg("-zsweepfee", DEFAULT_SWEEP_FEE);
            fSweepMapUsed = !mapMultiArgs["-zsweepaddress"].empty();

            //Validate Sapling Addresses
            vector<string>& vSweep = mapMultiArgs["-zsweepaddress"];
            vector<string>& vSweepExclude = mapMultiArgs["-zsweepexclude"];
            if (vSweep.size() != 1) {
                return InitError("A single zsweep address must be specified.");
            }

            for (int i = 0; i < vSweep.size(); i++) {
                auto zSweep = DecodePaymentAddress(vSweep[i]);
                if (!IsValidPaymentAddress(zSweep)) {
                    return InitError("Invalid zsweep address");
                }
                auto hasSpendingKey = boost::apply_visitor(HaveSpendingKeyForPaymentAddress(pwalletMain), zSweep);
                auto allowSweepToExternalWallet = GetArg("-zsweepexternal", false);
                pwalletMain->sweepAddress = vSweep[i];

                if (!hasSpendingKey) {
                    if (allowSweepToExternalWallet) {
                        LogPrintf("%s: sweeping funds to a zaddr in an external wallet\n", __func__);
                    } else {
                        return InitError("Wallet must have the spending key of zsweep address");
                    }
                }
            }

            for (int i = 0; i < vSweepExclude.size(); i++) {
                LogPrintf("Sweep Excluded Address: %s\n", vSweepExclude[i]);
                auto zSweepExcluded = DecodePaymentAddress(vSweepExclude[i]);
                if (!IsValidPaymentAddress(zSweepExcluded)) {
                    return InitError("Invalid zsweepexclude address");
                }
                auto hasSpendingKey = boost::apply_visitor(HaveSpendingKeyForPaymentAddress(pwalletMain), zSweepExcluded);

                if (!hasSpendingKey) {
                    return InitError("Wallet must have the spending key of zsweepexclude address");
                }
                // Add this validated zaddr to the list of excluded sweep zaddrs
                pwalletMain->sweepExcludeAddresses.push_back( vSweepExclude[i] );
            }

            if (pwalletMain->fSaplingConsolidationEnabled) {
                //Validate 1 Consolidation address only that matches the sweep address
                vector<string>& vaddresses = mapMultiArgs["-consolidatesaplingaddress"];
                if (vaddresses.size() == 0) {
                    fConsolidationMapUsed = true;
                    mapMultiArgs["-consolidatesaplingaddress"] = vSweep;
                } else {
                    pwalletMain->consolidationAddress = vaddresses[0];
                    for (int i = 0; i < vaddresses.size(); i++) {
                        if (vSweep[0] != vaddresses[i]) {
                            return InitError("Consolidation can only be used on the sweep address when sweep is enabled.");
                        }
                    }
                }
            }
        }

        //Set Automatic Coinbase Shielding (default ON, conditional: self-guards
        //on nodes where it cannot act - no owned coinbase, external mineraddress,
        //or locked wallet). Closes the transparent-coinbase leak for miners.
        // Default ON only when this wallet's HD seed provenance says the
        // destination is genuinely recoverable. Autoshield sends mined coinbase to
        // a seed-derived z-address (resolveDestination), so for a seed retrofitted
        // onto a pre-existing wallet - or one predating provenance recording - we
        // cannot assume the user holds it. Those wallets opt in with -autoshield=1
        // after backing the seed up.
        const bool fAutoShieldSeedKnown =
            (pwalletMain->hdSeedOrigin == CWallet::HDSEED_ORIGIN_CREATED ||
             pwalletMain->hdSeedOrigin == CWallet::HDSEED_ORIGIN_RESTORED);
        pwalletMain->fAutoShieldEnabled = GetBoolArg("-autoshield", fAutoShieldSeedKnown);
        if (!fAutoShieldSeedKnown && !mapArgs.count("-autoshield")) {
            LogPrintf("%s: autoshield left OFF by default: HD seed origin %d is not known-recoverable. "
                      "Back the seed up (z_exportwallet, or z_exportmnemonic on a mnemonic wallet) and "
                      "pass -autoshield=1 to enable.\n", __func__, pwalletMain->hdSeedOrigin);
        }
        if (pwalletMain->fAutoShieldEnabled) {
            int autoShieldInterval = GetArg("-autoshieldinterval", DEFAULT_AUTOSHIELD_INTERVAL);
            if (autoShieldInterval < MIN_AUTOSHIELD_INTERVAL) {
                InitWarning(strprintf(_("autoshield interval %d below the minimum, clamping to %d"),
                        autoShieldInterval, MIN_AUTOSHIELD_INTERVAL));
                autoShieldInterval = MIN_AUTOSHIELD_INTERVAL;
            }
            pwalletMain->autoShieldInterval = autoShieldInterval;
            pwalletMain->nextAutoShield     = pwalletMain->autoShieldInterval + chainActive.Height();

            // Validate the fee: floor it above the relay minimum and cap it to
            // guard against a fat-finger (e.g. -autoshieldfee=5000000000) that
            // would otherwise build an over-fee or malformed shield tx that
            // fails mempool admission every round.
            CAmount autoShieldFee = GetArg("-autoshieldfee", DEFAULT_AUTOSHIELD_FEE);
            if (autoShieldFee < AUTOSHIELD_MIN_FEE || autoShieldFee > AUTOSHIELD_MAX_FEE) {
                InitWarning(strprintf(_("-autoshieldfee=%lld out of range [%lld,%lld], using default %lld"),
                        (long long)autoShieldFee, (long long)AUTOSHIELD_MIN_FEE, (long long)AUTOSHIELD_MAX_FEE, (long long)DEFAULT_AUTOSHIELD_FEE));
                autoShieldFee = DEFAULT_AUTOSHIELD_FEE;
            }
            pwalletMain->autoShieldFee      = autoShieldFee;
            pwalletMain->autoShieldMinUtxos = GetArg("-autoshieldminutxos", DEFAULT_AUTOSHIELD_MIN_UTXOS);
            if (pwalletMain->autoShieldMinUtxos < 1) {
                pwalletMain->autoShieldMinUtxos = 1;
            }
            LogPrintf("%s: autoshield enabled, nextAutoShield=%d interval=%d\n", __func__, pwalletMain->nextAutoShield, pwalletMain->autoShieldInterval);

            //Optional explicit destination z-address. Must be a Sapling zaddr the
            //wallet can spend, else the shielded coinbase would be unrecoverable.
            std::string autoShieldAddress = GetArg("-autoshieldaddress", "");
            if (!autoShieldAddress.empty()) {
                auto zdest = DecodePaymentAddress(autoShieldAddress);
                if (!IsValidPaymentAddress(zdest) ||
                    boost::get<libzcash::SaplingPaymentAddress>(&zdest) == nullptr) {
                    return InitError("Invalid -autoshieldaddress: must be a Sapling z-address");
                }
                auto hasSpendingKey = boost::apply_visitor(HaveSpendingKeyForPaymentAddress(pwalletMain), zdest);
                if (!hasSpendingKey) {
                    return InitError("Wallet must hold the spending key of -autoshieldaddress (else shielded coinbase would be unrecoverable)");
                }
                pwalletMain->autoShieldAddress = autoShieldAddress;
            } else {
                // No explicit destination. Resolve the seed-derived one now, read-only,
                // so z_autoshieldstatus can say where coinbase will go BEFORE the first
                // round rather than reporting an empty string until one fires. This
                // never generates a key: a fresh account must not be a side effect of
                // populating a status field. A brand-new wallet holds nothing in-gap
                // yet, so the field stays empty and the RPC explains why.
                LOCK(pwalletMain->cs_wallet);
                if (!pwalletMain->IsLocked()) {
                    libzcash::SaplingPaymentAddress destAddr;
                    std::string destStr;
                    uint32_t destAccount = AUTOSHIELD_ACCOUNT_NONE;
                    if (ResolveAutoShieldDestinationReadOnly(destAddr, destStr, destAccount)
                            == AutoShieldDestStatus::Resolved) {
                        pwalletMain->autoShieldAddress = destStr;
                        LogPrintf("%s: autoshield destination %s (seed-derived sapling account %u)\n",
                                  __func__, destStr, (unsigned)destAccount);
                    }
                }
            }
        }

        //Set Transaction Deletion Options
        fTxDeleteEnabled = GetBoolArg("-deletetx", false);
        fTxConflictDeleteEnabled = GetBoolArg("-deleteconflicttx", true);

        fDeleteInterval = GetArg("-deleteinterval", DEFAULT_TX_DELETE_INTERVAL);
        if (fDeleteInterval < 1)
          return InitError("deleteinterval must be greater than 0");

        fKeepLastNTransactions = GetArg("-keeptxnum", DEFAULT_TX_RETENTION_LASTTX);
        if (fKeepLastNTransactions < 1)
          return InitError("keeptxnum must be greater than 0");

        fDeleteTransactionsAfterNBlocks = GetArg("-keeptxfornblocks", DEFAULT_TX_RETENTION_BLOCKS);
        if (fDeleteTransactionsAfterNBlocks < 1)
          return InitError("keeptxfornblocks must be greater than 0");

        if (fDeleteTransactionsAfterNBlocks < MAX_REORG_LENGTH + 1 ) {
          LogPrintf("keeptxfornblock is less the MAX_REORG_LENGTH, Setting to %i\n", MAX_REORG_LENGTH + 1);
          fDeleteTransactionsAfterNBlocks = MAX_REORG_LENGTH + 1;
        }

        if (fFirstRun)
        {
            // Create new keyUser and set as default key
            CPubKey newDefaultKey;
            if (pwalletMain->GetKeyFromPool(newDefaultKey)) {
                pwalletMain->SetDefaultKey(newDefaultKey);
                if (!pwalletMain->SetAddressBook(pwalletMain->vchDefaultKey.GetID(), "", "receive"))
                    strErrors << _("Cannot write default address") << "\n";
            }

            pwalletMain->SetBestChain(chainActive.GetLocator());
        }

        LogPrintf("%s", strErrors.str());
        LogPrintf(" wallet      %15dms\n", GetTimeMillis() - nStart);

        RegisterValidationInterface(pwalletMain);

        CBlockIndex *pindexRescan = chainActive.Tip();
        if (clearWitnessCaches || GetBoolArg("-rescan", false))
        {
            int rescanHeight = GetArg("-rescanheight", 0);
            //  Must be used with -rescanheight
            if( GetBoolArg("-keepnotewitnesscache", false) && rescanHeight > 0 ) {
                LogPrintf("%s: keeping NoteWitnessCache with rescan height=%d\n", __func__, rescanHeight);
            } else {
                pwalletMain->ClearNoteWitnessCache();
            }

            pindexRescan = chainActive.Genesis();
            if (rescanHeight > 0) {
                if (rescanHeight > chainActive.Tip()->GetHeight()) {
                    pindexRescan = chainActive.Tip();
                } else {
                    pindexRescan = chainActive[rescanHeight];
                }
            }
        } else {
            CWalletDB walletdb(strWalletFile);
            CBlockLocator locator;
            if (walletdb.ReadBestBlock(locator))
                pindexRescan = FindForkInGlobalIndex(chainActive, locator);
            else
                pindexRescan = chainActive.Genesis();
        }
        if (chainActive.Tip() && chainActive.Tip() != pindexRescan)
        {
            uiInterface.InitMessage(_("Rescanning..."));
            LogPrintf("Rescanning last %i blocks (from block %i)...\n", chainActive.Height() - pindexRescan->GetHeight(), pindexRescan->GetHeight());
            nStart = GetTimeMillis();
            pwalletMain->ScanForWalletTransactions(pindexRescan, true);
            LogPrintf(" rescan      %15dms\n", GetTimeMillis() - nStart);
            // ONLY record "scanned to the tip" if the scan actually reached it. An aborted or
            // shutdown-interrupted scan that stamps a tip locator tells the next startup there is
            // nothing left to scan (the chainActive.Tip() != pindexRescan guard above then skips
            // the rescan entirely), so every transaction in the unscanned range stays out of
            // mapWallet permanently: invisible to getbalance and unspendable. The scan writes its
            // own locator at the interrupt point instead.
            if (pwalletMain->fLastRescanCompleted) {
                pwalletMain->SetBestChain(chainActive.GetLocator());
                nWalletDBUpdated++;
            } else {
                LogPrintf("Rescan did not complete; leaving the best-block locator at the scan's own "
                          "checkpoint so the remaining range is rescanned on the next start\n");
            }

            // Restore wallet transaction metadata after -zapwallettxes=1
            if (GetBoolArg("-zapwallettxes", false) && GetArg("-zapwallettxes", "1") != "2")
            {
                CWalletDB walletdb(strWalletFile);

                BOOST_FOREACH(const CWalletTx& wtxOld, vWtx)
                {
                    uint256 hash = wtxOld.GetHash();
                    std::map<uint256, CWalletTx>::iterator mi = pwalletMain->mapWallet.find(hash);
                    if (mi != pwalletMain->mapWallet.end())
                    {
                        const CWalletTx* copyFrom = &wtxOld;
                        CWalletTx* copyTo = &mi->second;
                        copyTo->mapValue = copyFrom->mapValue;
                        copyTo->vOrderForm = copyFrom->vOrderForm;
                        copyTo->nTimeReceived = copyFrom->nTimeReceived;
                        copyTo->nTimeSmart = copyFrom->nTimeSmart;
                        copyTo->fFromMe = copyFrom->fFromMe;
                        copyTo->strFromAccount = copyFrom->strFromAccount;
                        copyTo->nOrderPos = copyFrom->nOrderPos;
                        copyTo->WriteToDisk(&walletdb);
                    }
                }
            }
        }
        pwalletMain->SetBroadcastTransactions(GetBoolArg("-walletbroadcast", true));
    } // (!fDisableWallet)
#else // ENABLE_WALLET
    LogPrintf("No wallet support compiled in!\n");
#endif // !ENABLE_WALLET

#ifdef ENABLE_MINING
 #ifndef ENABLE_WALLET
    if (GetBoolArg("-minetolocalwallet", false)) {
        return InitError(_("DragonX was not built with wallet support. Set -minetolocalwallet=0 to use -mineraddress, or rebuild DragonX with wallet support."));
    }
    if (GetArg("-mineraddress", "").empty() && GetBoolArg("-gen", false)) {
        return InitError(_("DragonX was not built with wallet support. Set -mineraddress, or rebuild DragonX with wallet support."));
    }
 #endif // !ENABLE_WALLET

    if (mapArgs.count("-mineraddress")) {
 #ifdef ENABLE_WALLET
        bool minerAddressInLocalWallet = false;
        if (pwalletMain) {
            // Address has alreday been validated
            CTxDestination addr = DecodeDestination(mapArgs["-mineraddress"]);
            CKeyID keyID = boost::get<CKeyID>(addr);
            minerAddressInLocalWallet = pwalletMain->HaveKey(keyID);
        }
        if (GetBoolArg("-minetolocalwallet", true) && !minerAddressInLocalWallet) {
            return InitError(_("-mineraddress is not in the local wallet. Either use a local address, or set -minetolocalwallet=0"));
        }
 #endif // ENABLE_WALLET
    }
#endif // ENABLE_MINING

    // Start the thread that notifies listeners of transactions that have been
    // recently added to the mempool, or have been added to or removed from the
    // chain. We perform this before step 10 (import blocks) so that the
    // original value of chainActive.Tip(), which corresponds with the wallet's
    // view of the chaintip, is passed to ThreadNotifyWallets before the chain
    // tip changes again.
    {
        CBlockIndex *pindexLastTip;
        {
            LOCK(cs_main);
            pindexLastTip = chainActive.Tip();
        }
        boost::function<void()> threadnotifywallets = boost::bind(&ThreadNotifyWallets, pindexLastTip);
        threadGroup.create_thread(
            boost::bind(&TraceThread<boost::function<void()>>, "txnotify", threadnotifywallets)
        );
    }

    // ********************************************************* Step 9: data directory maintenance

    // if pruning, unset the service bit and perform the initial blockstore prune
    // after any wallet rescanning has taken place.
    if (fPruneMode) {
        LogPrintf("Unsetting NODE_NETWORK on prune mode\n");
        nLocalServices &= ~NODE_NETWORK;
        if (!fReindex) {
            uiInterface.InitMessage(_("Pruning blockstore..."));
            PruneAndFlush();
        }
    }
    if ( HUSH_NSPV == 0 )
    {
        if ( GetBoolArg("-addressindex", DEFAULT_ADDRESSINDEX) != 0 )
            nLocalServices |= NODE_ADDRINDEX;
        if ( GetBoolArg("-spentindex", DEFAULT_SPENTINDEX) != 0 )
            nLocalServices |= NODE_SPENTINDEX;
        // Advertise willingness to SERVE bulk block streams (full nodes only) when opted in.
        if ( fBulkBlockSync )
            nLocalServices |= NODE_BULKBLOCKS;
        LogPrintf("nLocalServices %llx %d, %d\n",(long long)nLocalServices,GetBoolArg("-addressindex", DEFAULT_ADDRESSINDEX),GetBoolArg("-spentindex", DEFAULT_SPENTINDEX));
    }
    // ********************************************************* Step 10: import blocks

    if (mapArgs.count("-blocknotify"))
        uiInterface.NotifyBlockTip.connect(BlockNotifyCallback);
     if (mapArgs.count("-txexpirynotify"))
        uiInterface.NotifyTxExpiration.connect(TxExpiryNotifyCallback);
    if ( HUSH_REWIND >= 0 )
    {
        uiInterface.InitMessage(_("Activating best chain..."));
        // scan for better chains in the block chain database, that are not yet connected in the active best chain
        CValidationState state;
        if ( !ActivateBestChain(true,state))
            strErrors << "Failed to connect best block";
    } else {
        LogPrintf("HUSH_REWIND < 0\n");
    }
    std::vector<boost::filesystem::path> vImportFiles;
    if (mapArgs.count("-loadblock"))
    {
        BOOST_FOREACH(const std::string& strFile, mapMultiArgs["-loadblock"])
            vImportFiles.push_back(strFile);
    }
    threadGroup.create_thread(boost::bind(&ThreadImport, vImportFiles));

    // Wait for genesis block to be processed
    bool fHaveGenesis = false;
    while (!fHaveGenesis && !fRequestShutdown) {
        {
            LOCK(cs_main);
            fHaveGenesis = (chainActive.Tip() != NULL);
            MilliSleep(10);
    }

        if (!fHaveGenesis) {
            MilliSleep(10);
        }
    }
    if (!fHaveGenesis) {
        return false;
    }

    // ********************************************************* Step 11: start node

    if (!CheckDiskSpace())
        return false;

    if (!strErrors.str().empty())
        return InitError(strErrors.str());

    //// debug print
    LogPrintf("mapBlockIndex.size() = %u\n",   mapBlockIndex.size());
    LogPrintf("nBestHeight = %d\n",                   chainActive.Height());
#ifdef ENABLE_WALLET
    LogPrintf("setKeyPool.size() = %u\n",      pwalletMain ? pwalletMain->setKeyPool.size() : 0);
    LogPrintf("mapWallet.size() = %u\n",       pwalletMain ? pwalletMain->mapWallet.size() : 0);
    LogPrintf("mapAddressBook.size() = %u\n",  pwalletMain ? pwalletMain->mapAddressBook.size() : 0);
#endif

    if (GetBoolArg("-listenonion", DEFAULT_LISTEN_ONION))
        StartTorControl(threadGroup, scheduler);

    if(fDebug)
        fprintf(stderr,"Starting txnotify thread\n");
    StartNode(threadGroup, scheduler);

#ifdef ENABLE_MINING
    // Generate coins in the background
 #ifdef ENABLE_WALLET

    if (pwalletMain || !GetArg("-mineraddress", "").empty())
        GenerateBitcoins(GetBoolArg("-gen", false), pwalletMain, GetArg("-genproclimit", -1));
 #else
    GenerateBitcoins(GetBoolArg("-gen", false), GetArg("-genproclimit", -1));
 #endif
#endif

    // ********************************************************* Step 11: finished

    SetRPCWarmupFinished();
    if(fDebug)
        fprintf(stderr,"RPC warmup finished\n");
    uiInterface.InitMessage(_("Full Node Done Loading! :)"));

#ifdef ENABLE_WALLET
    if (pwalletMain) {
        if(fDebug)
	        fprintf(stderr,"%s Reaccepting wallet xtns\n", __FUNCTION__);
        // Add wallet transactions that aren't already in a block to mapTransactions
        pwalletMain->ReacceptWalletTransactions();

        if(fDebug)
	        fprintf(stderr,"%s Starting wallet flusher thread\n", __FUNCTION__);
        // Run a thread to flush wallet periodically
        threadGroup.create_thread(boost::bind(&ThreadFlushWalletDB, boost::ref(pwalletMain->strWalletFile)));
    }
#endif

    if(fDebug)
	    fprintf(stderr,"%s end fRequestShutdown=%d\n", __FUNCTION__, !!fRequestShutdown);
    return !fRequestShutdown;
}
