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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin developers
// Copyright (c) 2014 Joey Krug and Jack Peterson
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#if defined(HAVE_CONFIG_H)
#include "sidecoin-config.h"
#endif

#include "init.h"

#include "addrman.h"
#include "checkpoints.h"
#include "main.h"
#include "miner.h"
#include "net.h"
#include "rpcserver.h"
#include "snapshot.h"
#include "txdb.h"
#include "ui_interface.h"
#include "util.h"
#include "chainparams.h"
#ifdef ENABLE_WALLET
#include "db.h"
#include "wallet.h"
#include "walletdb.h"
#endif

#include 

#ifndef WIN32
#include 
#endif

#include 
#include 
#include 
#include 

using namespace std;
using namespace boost;

#ifdef ENABLE_WALLET
std::string strWalletFile;
CWallet* pwalletMain;
#endif

#ifdef WIN32
// Win32 LevelDB doesn't use filedescriptors, and the ones used for
// accessing block files, don't count towards to 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 Flush();
        if (pcoinsTip)
            pcoinsTip->Flush();
        delete pcoinsTip; pcoinsTip = NULL;
        delete pcoinsdbview; pcoinsdbview = NULL;
        delete pblocktree; pblocktree = NULL;
    }
#ifdef ENABLE_WALLET
    if (pwalletMain)
        bitdb.Flush(true);
#endif
    boost::filesystem::remove(GetPidFile());
    UnregisterAllWallets();
#ifdef ENABLE_WALLET
    if (pwalletMain)
        delete pwalletMain;
#endif
    LogPrintf("Shutdown : done\n");
}

//
// Signal handlers are very limited in what they are allowed to do, so:
//
void HandleSIGTERM(int)
{
    fRequestShutdown = true;
}

void HandleSIGHUP(int)
{
    fReopenDebugLog = true;
}

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

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

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

// Core-specific options shared between UI, daemon and RPC client
std::string HelpMessage(HelpMessageMode hmm)
{
    string strUsage = _("Options:") + "\n";
    strUsage += "  -?                     " + _("This help message") + "\n";
    strUsage += "  -conf=           " + _("Specify configuration file (default: sidecoin.conf)") + "\n";
    strUsage += "  -datadir=         " + _("Specify data directory") + "\n";
    strUsage += "  -testnet               " + _("Use the test network") + "\n";
    strUsage += "  -pid=            " + _("Specify pid file (default: sidecoind.pid)") + "\n";
    strUsage += "  -gen                   " + _("Generate coins (default: 0)") + "\n";
    strUsage += "  -dbcache=           " + strprintf(_("Set database cache size in megabytes (%d to %d, default: %d)"), nMinDbCache, nMaxDbCache, nDefaultDbCache) + "\n";
    strUsage += "  -timeout=           " + _("Specify connection timeout in milliseconds (default: 5000)") + "\n";
    strUsage += "  -proxy=       " + _("Connect through SOCKS proxy") + "\n";
    strUsage += "  -socks=             " + _("Select SOCKS version for -proxy (4 or 5, default: 5)") + "\n";
    strUsage += "  -onion=       " + _("Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: -proxy)") + "\n";
    strUsage += "  -dns                   " + _("Allow DNS lookups for -addnode, -seednode and -connect") + "\n";
    strUsage += "  -port=           " + _("Listen for connections on  (default: 8333 or testnet: 18333)") + "\n";
    strUsage += "  -maxconnections=    " + _("Maintain at most  connections to peers (default: 125)") + "\n";
    strUsage += "  -addnode=          " + _("Add a node to connect to and attempt to keep the connection open") + "\n";
    strUsage += "  -connect=          " + _("Connect only to the specified node(s)") + "\n";
    strUsage += "  -seednode=         " + _("Connect to a node to retrieve peer addresses, and disconnect") + "\n";
    strUsage += "  -externalip=       " + _("Specify your own public address") + "\n";
    strUsage += "  -onlynet=         " + _("Only connect to nodes in network  (IPv4, IPv6 or Tor)") + "\n";
    strUsage += "  -discover              " + _("Discover own IP address (default: 1 when listening and no -externalip)") + "\n";
    strUsage += "  -checkpoints           " + _("Only accept block chain matching built-in checkpoints (default: 1)") + "\n";
    strUsage += "  -listen                " + _("Accept connections from outside (default: 1 if no -proxy or -connect)") + "\n";
    strUsage += "  -bind=           " + _("Bind to given address and always listen on it. Use [host]:port notation for IPv6") + "\n";
    strUsage += "  -dnsseed               " + _("Find peers using DNS lookup (default: 1 unless -connect)") + "\n";
    strUsage += "  -banscore=          " + _("Threshold for disconnecting misbehaving peers (default: 100)") + "\n";
    strUsage += "  -bantime=           " + _("Number of seconds to keep misbehaving peers from reconnecting (default: 86400)") + "\n";
    strUsage += "  -maxreceivebuffer=  " + _("Maximum per-connection receive buffer, *1000 bytes (default: 5000)") + "\n";
    strUsage += "  -maxsendbuffer=     " + _("Maximum per-connection send buffer, *1000 bytes (default: 1000)") + "\n";
#ifdef USE_UPNP
#if USE_UPNP
    strUsage += "  -upnp                  " + _("Use UPnP to map the listening port (default: 1 when listening)") + "\n";
#else
    strUsage += "  -upnp                  " + _("Use UPnP to map the listening port (default: 0)") + "\n";
#endif
#endif
    strUsage += "  -debug=      " + _("Output debugging information (default: 0, supplying  is optional)") + "\n";
    strUsage += "                         " + _("If  is not supplied, output all debugging information.") + "\n";
    strUsage += "                         " + _(" can be:");
    strUsage +=                                 " addrman, alert, coindb, db, lock, rand, rpc, selectcoins, mempool, net"; // Don't translate these and qt below
    if (hmm == HMM_SIDECOIN_QT)
    {
        strUsage += ", qt.\n";
    }
    else
    {
        strUsage += ".\n";
    }
    strUsage += "  -logtimestamps         " + _("Prepend debug output with timestamp (default: 1)") + "\n";
    strUsage += "  -shrinkdebugfile       " + _("Shrink debug.log file on client startup (default: 1 when no -debug)") + "\n";
    strUsage += "  -printtoconsole        " + _("Send trace/debug info to console instead of debug.log file") + "\n";
    strUsage += "  -regtest               " + _("Enter regression test mode, which uses a special chain in which blocks can be solved instantly.") + "\n";
    strUsage += "                         " + _("This is intended for regression testing tools and app development.") + "\n";
    strUsage += "  -server                " + _("Accept command line and JSON-RPC commands") + "\n";

    if (hmm == HMM_SIDECOIND)
    {
#if !defined(WIN32)
        strUsage += "  -daemon                " + _("Run in the background as a daemon and accept commands") + "\n";
#endif
    }

    strUsage += "  -rpcuser=        " + _("Username for JSON-RPC connections") + "\n";
    strUsage += "  -rpcpassword=      " + _("Password for JSON-RPC connections") + "\n";
    strUsage += "  -rpcport=        " + _("Listen for JSON-RPC connections on  (default: 8332 or testnet: 18332)") + "\n";
    strUsage += "  -rpcallowip=       " + _("Allow JSON-RPC connections from specified IP address") + "\n";
    strUsage += "  -rpcthreads=        " + _("Set the number of threads to service RPC calls (default: 4)") + "\n";
    strUsage += "  -blocknotify=     " + _("Execute command when the best block changes (%s in cmd is replaced by block hash)") + "\n";
    strUsage += "  -alertnotify=     " + _("Execute command when a relevant alert is received or we see a really long fork (%s in cmd is replaced by message)") + "\n";
    strUsage += "  -keypool=           " + _("Set key pool size to  (default: 100)") + "\n";
    strUsage += "  -checkblocks=       " + _("How many blocks to check at startup (default: 288, 0 = all)") + "\n";
    strUsage += "  -checklevel=        " + _("How thorough the block verification is (0-4, default: 3)") + "\n";
    strUsage += "  -txindex               " + _("Maintain a full transaction index (default: 0)") + "\n";
    strUsage += "  -loadblock=      " + _("Imports blocks from external blk000??.dat file") + "\n";
    strUsage += "  -reindex               " + _("Rebuild block chain index from current blk000??.dat files") + "\n";
    strUsage += "  -par=               " + _("Set the number of script verification threads (up to 16, 0 = auto,  setting -listen=1\n");
    }

    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("AppInit2 : parameter interaction: -connect set -> setting -dnsseed=0\n");
        if (SoftSetBoolArg("-listen", false))
            LogPrintf("AppInit2 : parameter interaction: -connect set -> setting -listen=0\n");
    }

    if (mapArgs.count("-proxy")) {
        // to protect privacy, do not listen by default if a default proxy server is specified
        if (SoftSetBoolArg("-listen", false))
            LogPrintf("AppInit2 : parameter interaction: -proxy set -> setting -listen=0\n");
    }

    if (!GetBoolArg("-listen", true)) {
        // do not map ports or try to retrieve public IP when not listening (pointless)
        if (SoftSetBoolArg("-upnp", false))
            LogPrintf("AppInit2 : parameter interaction: -listen=0 -> setting -upnp=0\n");
        if (SoftSetBoolArg("-discover", false))
            LogPrintf("AppInit2 : parameter interaction: -listen=0 -> setting -discover=0\n");
    }

    if (mapArgs.count("-externalip")) {
        // if an explicit public IP is specified, do not try to find others
        if (SoftSetBoolArg("-discover", false))
            LogPrintf("AppInit2 : parameter interaction: -externalip set -> setting -discover=0\n");
    }

    if (GetBoolArg("-salvagewallet", false)) {
        // Rewrite just private keys: rescan to find transactions
        if (SoftSetBoolArg("-rescan", true))
            LogPrintf("AppInit2 : parameter interaction: -salvagewallet=1 -> setting -rescan=1\n");
    }

    // -zapwallettx implies a rescan
    if (GetBoolArg("-zapwallettxes", false)) {
        if (SoftSetBoolArg("-rescan", true))
            LogPrintf("AppInit2 : parameter interaction: -zapwallettxes=1 -> setting -rescan=1\n");
    }

    // Make sure enough file descriptors are available
    int nBind = std::max((int)mapArgs.count("-bind"), 1);
    nMaxConnections = GetArg("-maxconnections", 125);
    nMaxConnections = std::max(std::min(nMaxConnections, (int)(FD_SETSIZE - nBind - MIN_CORE_FILEDESCRIPTORS)), 0);
    int nFD = RaiseFileDescriptorLimit(nMaxConnections + 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;

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

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

    // Check for -debugnet (deprecated)
    if (GetBoolArg("-debugnet", false))
        InitWarning(_("Warning: Deprecated argument -debugnet ignored, use -debug=net"));

    fBenchmark = GetBoolArg("-benchmark", false);
    mempool.setSanityCheck(GetBoolArg("-checkmempool", RegTest()));
    Checkpoints::fEnabled = GetBoolArg("-checkpoints", true);

    // -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency
    nScriptCheckThreads = GetArg("-par", 0);
    if (nScriptCheckThreads  0 && nNewTimeout < 600000)
            nConnectTimeout = nNewTimeout;
    }

    // Continue to put "/P2SH/" in the coinbase to monitor
    // BIP16 support.
    // This can be removed eventually...
    const char* pszP2SH = "/P2SH/";
    COINBASE_FLAGS  0)
            CTransaction::nMinTxFee = n;
        else
            return InitError(strprintf(_("Invalid amount for -mintxfee=: '%s'"), mapArgs["-mintxfee"]));
    }
    if (mapArgs.count("-minrelaytxfee"))
    {
        int64_t n = 0;
        if (ParseMoney(mapArgs["-minrelaytxfee"], n) && n > 0)
            CTransaction::nMinRelayTxFee = n;
        else
            return InitError(strprintf(_("Invalid amount for -minrelaytxfee=: '%s'"), mapArgs["-minrelaytxfee"]));
    }

#ifdef ENABLE_WALLET
    if (mapArgs.count("-paytxfee"))
    {
        if (!ParseMoney(mapArgs["-paytxfee"], nTransactionFee))
            return InitError(strprintf(_("Invalid amount for -paytxfee=: '%s'"), mapArgs["-paytxfee"]));
        if (nTransactionFee > 0.25 * COIN)
            InitWarning(_("Warning: -paytxfee is set very high! This is the transaction fee you will pay if you send a transaction."));
    }
    bSpendZeroConfChange = GetArg("-spendzeroconfchange", true);

    strWalletFile = GetArg("-wallet", "wallet.dat");
#endif
    // ********************************************************* Step 4: application initialization: dir lock, daemonize, pidfile, debug log

    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 Sidecoin 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);
    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. Sidecoin is probably already running."), strDataDir));

    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("Sidecoin version %s (%s)\n", FormatFullVersion(), CLIENT_DATE);
    LogPrintf("Using OpenSSL version %s\n", SSLeay_version(SSLEAY_VERSION));
    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 at most %i connections (%i file descriptors available)\n", nMaxConnections, nFD);
    std::ostringstream strErrors;

    if (nScriptCheckThreads) {
        LogPrintf("Using %u threads for script verification\n", nScriptCheckThreads);
        for (int i=0; i 4) {
#ifdef USE_IPV6
            if (!IsLimited(NET_IPV6))
                SetProxy(NET_IPV6, addrProxy, nSocksVersion);
#endif
            SetNameProxy(addrProxy, nSocksVersion);
        }
        fProxy = true;
    }

    // -onion can override normal proxy, -noonion disables tor entirely
    // -tor here is a temporary backwards compatibility measure
    if (mapArgs.count("-tor"))
        printf("Notice: option -tor has been replaced with -onion and will be removed in a later version.\n");
    if (!(mapArgs.count("-onion") && mapArgs["-onion"] == "0") &&
        !(mapArgs.count("-tor") && mapArgs["-tor"] == "0") &&
         (fProxy || mapArgs.count("-onion") || mapArgs.count("-tor"))) {
        CService addrOnion;
        if (!mapArgs.count("-onion") && !mapArgs.count("-tor"))
            addrOnion = addrProxy;
        else
            addrOnion = mapArgs.count("-onion")?CService(mapArgs["-onion"], 9050):CService(mapArgs["-tor"], 9050);
        if (!addrOnion.IsValid())
            return InitError(strprintf(_("Invalid -onion address: '%s'"), mapArgs.count("-onion")?mapArgs["-onion"]:mapArgs["-tor"]));
        SetProxy(NET_TOR, addrOnion, 5);
        SetReachable(NET_TOR);
    }

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

    bool fBound = false;
    if (!fNoListen) {
        if (mapArgs.count("-bind")) {
            BOOST_FOREACH(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));
            }
        }
        else {
            struct in_addr inaddr_any;
            inaddr_any.s_addr = INADDR_ANY;
#ifdef USE_IPV6
            fBound |= Bind(CService(in6addr_any, GetListenPort()), BF_NONE);
#endif
            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(string strAddr, mapMultiArgs["-externalip"]) {
            CService addrLocal(strAddr, GetListenPort(), fNameLookup);
            if (!addrLocal.IsValid())
                return InitError(strprintf(_("Cannot resolve -externalip address: '%s'"), strAddr));
            AddLocal(CService(strAddr, GetListenPort(), fNameLookup), LOCAL_MANUAL);
        }
    }

    BOOST_FOREACH(string strDest, mapMultiArgs["-seednode"])
        AddOneShot(strDest);

    // ********************************************************* Step 7: load block chain

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

    // Upgrading to 0.8; hard-link the old blknnnn.dat files into /blocks/
    filesystem::path blocksDir = GetDataDir() / "blocks";
    if (!filesystem::exists(blocksDir))
    {
        filesystem::create_directories(blocksDir);
        bool linked = false;
        for (unsigned int i = 1; i < 10000; i++) {
            filesystem::path source = GetDataDir() / strprintf("blk%04u.dat", i);
            if (!filesystem::exists(source)) break;
            filesystem::path dest = blocksDir / strprintf("blk%05u.dat", i-1);
            try {
                filesystem::create_hard_link(source, dest);
                LogPrintf("Hardlinked %s -> %s\n", source.string(), dest.string());
                linked = true;
            } catch (filesystem::filesystem_error & e) {
                // Note: hardlink creation failing is not a disaster, it just means
                // blocks will get re-downloaded from peers.
                LogPrintf("Error hardlinking blk%04u.dat : %s\n", i, e.what());
                break;
            }
        }
        if (linked)
        {
            fReindex = true;
        }
    }

    // cache size calculations
    size_t nTotalCache = (GetArg("-dbcache", nDefaultDbCache) nNonce);
                        printf("  block.GetHash: %s\n", it->first.ToString().c_str());
                        printf("  block.hashMerkleRoot: %s\n", it->second->hashMerkleRoot.ToString().c_str());
                        printf("  block.nBits: %08x\n\n", it->second->nBits);
                        break;
                    }
                    puts("Active chain:");
                    printf("  chainActive.vChain.size: %d\n\n", chainActive.Height() + 1);
                    printf("\nInitBlockIndex(): %d\n\n", InitBlockIndex());
                    if (!mapBlockIndex.empty() && chainActive.Genesis() == NULL) {
                        return InitError(_("Incorrect or no genesis block found. Wrong datadir for network?"));
                    }
                }

                // Initialize the block index (no-op if non-empty database was already loaded)
                if (!InitBlockIndex()) {
                    strLoadError = _("Error initializing block database");
                    break;
                }

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

                uiInterface.InitMessage(_("Verifying blocks..."));
                if (!VerifyDB(GetArg("-checklevel", 3),
                              GetArg("-checkblocks", 288))) {
                    strLoadError = _("Corrupted block database detected");
                    break;
                }
            } catch(std::exception &e) {
                if (fDebug) LogPrintf("%s\n", e.what());
                strLoadError = _("Error opening block database");
                break;
            }

            fLoaded = true;


            // Test block one transaction loading
            if(GENESIS_SWITCH) {
                CBlock blockOne = blockOneTx();
            }

        } while(false);

        if (!fLoaded) {
            // first suggest a reindex
            if (!fReset) {
                // DEBUG_PRINT
                if (mapBlockIndex.empty()) {
                    puts("Error: map block index is empty.");
                }
                bool fRet = uiInterface.ThreadSafeMessageBox(
                    strLoadError + ".\n\n" + _("Do you want to rebuild the block database now?"),
                    "", 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);
            }
        }
    }

    // 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);

    if (GetBoolArg("-printblockindex", false) || GetBoolArg("-printblocktree", false))
    {
        PrintBlockTree();
        return false;
    }

    if (mapArgs.count("-printblock"))
    {
        string strMatch = mapArgs["-printblock"];
        int nFound = 0;
        for (map::iterator mi = mapBlockIndex.begin(); mi != mapBlockIndex.end(); ++mi)
        {
            uint256 hash = (*mi).first;
            if (strncmp(hash.ToString().c_str(), strMatch.c_str(), strMatch.size()) == 0)
            {
                CBlockIndex* pindex = (*mi).second;
                CBlock block;
                ReadBlockFromDisk(block, pindex);
                block.BuildMerkleTree();
                block.print();
                LogPrintf("\n");
                nFound++;
            }
        }
        if (nFound == 0)
            LogPrintf("No blocks matching %s were found\n", strMatch);
        return false;
    }

    // ********************************************************* Step 8: load wallet
#ifdef ENABLE_WALLET
    if (fDisableWallet) {
        pwalletMain = NULL;
        LogPrintf("Wallet disabled!\n");
    } else {
        if (GetBoolArg("-zapwallettxes", false)) {
            uiInterface.InitMessage(_("Zapping all transactions from wallet..."));

            pwalletMain = new CWallet(strWalletFile);
            DBErrors nZapWalletRet = pwalletMain->ZapWalletTx();
            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)
                strErrors SetBestChain(chainActive.GetLocator());
            nWalletDBUpdated++;
        }
    } // (!fDisableWallet)
#else // ENABLE_WALLET
    LogPrintf("No wallet compiled in!\n");
#endif // !ENABLE_WALLET
    // ********************************************************* Step 9: import blocks

    // scan for better chains in the block chain database, that are not yet connected in the active best chain
    CValidationState state;
    if (!ActivateBestChain(state))
        strErrors setKeyPool.size() : 0);
    LogPrintf("mapWallet.size() = %"PRIszu"\n",       pwalletMain ? pwalletMain->mapWallet.size() : 0);
    LogPrintf("mapAddressBook.size() = %"PRIszu"\n",  pwalletMain ? pwalletMain->mapAddressBook.size() : 0);
#endif

    StartNode(threadGroup);
    // InitRPCMining is needed here so getwork/getblocktemplate in the GUI debug console works properly.
    InitRPCMining();
    if (fServer)
        StartRPCThreads();

#ifdef ENABLE_WALLET
    // Generate coins in the background
    if (pwalletMain)
        GenerateSidecoins(GetBoolArg("-gen", false), pwalletMain, GetArg("-genproclimit", -1));
#endif

    // ********************************************************* Step 12: finished

    uiInterface.InitMessage(_("Done loading"));

#ifdef ENABLE_WALLET
    if (pwalletMain) {
        // Add wallet transactions that aren't already in a block to mapTransactions
        pwalletMain->ReacceptWalletTransactions();

        // Run a thread to flush wallet periodically
        threadGroup.create_thread(boost::bind(&ThreadFlushWalletDB, boost::ref(pwalletMain->strWalletFile)));
    }
#endif

    return !fRequestShutdown;
}

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