// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <chainparams.h>

#include <chainparamsseeds.h>
#include <consensus/merkle.h>
#include <hash.h> // for signet block challenge hash
#include <tinyformat.h>
#include <util/system.h>
#include <util/strencodings.h>
#include <versionbitsinfo.h>

#include <assert.h>
#include <limits>
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>

static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
    CMutableTransaction txNew;
    txNew.nVersion = 1;
    txNew.vin.resize(1);
    txNew.vout.resize(1);

    txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
    txNew.vout[0].nValue = genesisReward;
    txNew.vout[0].scriptPubKey = genesisOutputScript;

    CBlock genesis;
    genesis.nTime    = nTime;
    genesis.nBits    = nBits;
    genesis.nNonce   = nNonce;
    genesis.nVersion = nVersion;
    genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
    genesis.hashPrevBlock.SetNull();
    genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
    return genesis;
}

/**
 * Build the genesis block. Note that the output of its generation
 * transaction cannot be spent since it did not originally exist in the
 * database.
 *
 * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
 *   CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
 *     CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
 *     CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
 *   vMerkleTree: 4a5e1e
 */
static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
    const char* pszTimestamp = "\"nytimes.com 10/1/2011 - Police Arrest Over 700 Protesters on Brooklyn Bridge\"";
    const CScript genesisOutputScript = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
    return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}

/**
 * Main network
 */
class CMainParams : public CChainParams {
public:
    CMainParams() {
        strNetworkID = CBaseChainParams::MAIN;
        consensus.signet_blocks = false;
        consensus.signet_challenge.clear();
        consensus.nSubsidyHalvingInterval = 840000;
        consensus.BIP16Height = std::numeric_limits<int>::max(); // 87afb798a3ad9378fcd56123c81fb31cfd9a8df4719b9774d71730c16315a092 - October 1, 2012
        consensus.BIP34Height = std::numeric_limits<int>::max();
        consensus.BIP34Hash = uint256S("0xfa09d204a83a768ed5a7c8d441fa62f2043abf420cff1226c7b4329aeb9d51cf");
        consensus.BIP65Height = std::numeric_limits<int>::max(); // bab3041e8977e0dc3eeff63fe707b92bde1dd449d8efafb248c27c8264cc311a
        consensus.BIP66Height = std::numeric_limits<int>::max(); // 7aceee012833fa8952f8835d8b1b3ae233cd6ab08fdb27a771d2bd7bdc491894
        consensus.CSVHeight = std::numeric_limits<int>::max(); // 53e0af7626f7f51ce9f3b6cfc36508a5b1d2f6c4a75ac215dc079442692a4c0b
        consensus.SegwitHeight = std::numeric_limits<int>::max(); // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893
        consensus.MinBIP9WarningHeight = std::numeric_limits<int>::max(); // segwit activation height + miner confirmation window
        consensus.powLimit = uint256S("00000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
        consensus.nPowTargetTimespan = 7 * 24 * 60 * 60; // one week
        consensus.nPowTargetSpacing = 5 * 60;
        consensus.fPowAllowMinDifficultyBlocks = false;
        consensus.fPowNoRetargeting = false;
        consensus.nRuleChangeActivationThreshold = 6048; // 75% of 8064
        consensus.nMinerConfirmationWindow = 8064; // nPowTargetTimespan / nPowTargetSpacing * 4
        consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
        consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
        consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;

        // Deployment of Taproot (BIPs 340-342)
        consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
        consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartHeight = 2161152; // End November 2021
        consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeoutHeight = 2370816; // 364 days later

        // Deployment of MWEB (LIP-0002, LIP-0003, and LIP-0004)
        consensus.vDeployments[Consensus::DEPLOYMENT_MWEB].bit = 4;
        consensus.vDeployments[Consensus::DEPLOYMENT_MWEB].nStartHeight = 2217600; // End Feb 2022
        consensus.vDeployments[Consensus::DEPLOYMENT_MWEB].nTimeoutHeight = 2427264; // 364 days later

        consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000000000001427bd1ae9f7"); // 785494
        consensus.defaultAssumeValid = uint256S("0xd048387a7efe581fdffca1d6819a4ff26dc80dd8459ca09a19e27867356d917a"); // 2186382

        /**
         * The message start string is designed to be unlikely to occur in normal data.
         * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
         * a large 32-bit integer with any alignment.
         */
        pchMessageStart[0] = 0xf9;
        pchMessageStart[1] = 0xdb;
        pchMessageStart[2] = 0xf9;
        pchMessageStart[3] = 0xdb;
        nDefaultPort = 8591;
        nPruneAfterHeight = 100000;
        m_assumed_blockchain_size = 40;
        m_assumed_chain_state_size = 2;

        genesis = CreateGenesisBlock(1317529878, 385610221, 0x1e0ffff0, 1, 50 * COIN);
        consensus.hashGenesisBlock = genesis.GetHash();
        assert(genesis.hashMerkleRoot == uint256S("0x40a627262ed716f0f3d5104315fe0b600bf8e32a021929299163f74151fa52b1"));
        assert(consensus.hashGenesisBlock == uint256S("0x002a91713910bc96eb0edf237fcd2799d7a01186e1e96023e860bc70b3916200"));

        // Note that of those which support the service bits prefix, most only support a subset of
        // possible options.
        // This is fine at runtime as we'll fall back to using them as an addrfetch if they don't support the
        // service bits we want, but we should get them updated to support all service bits wanted by any
        // release ASAP to avoid it where possible.
        vSeeds.emplace_back("fbx.kawaii.kiwi");
        vSeeds.emplace_back("fairbrix.dnsseed.multicoin.co");


        base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,95);
        base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
        base58Prefixes[SCRIPT_ADDRESS2] = std::vector<unsigned char>(1,5);
        base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,223);
        base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
        base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};

        bech32_hrp = "fbx";
        mweb_hrp = "fbxmweb";

        vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_main), std::end(chainparams_seed_main));

        fDefaultConsistencyChecks = false;
        fRequireStandard = true;
        m_is_test_chain = false;
        m_is_mockable_chain = false;

        checkpointData = {
            {
        	{    50, uint256S("0x4f8a5ab946d64c19a4f3dacffc6014e47735fd12984e89d7436790accb115a3b")},
        	{    57, uint256S("0x034a3d32d1324130954f33ee7ad008012373ec93d01540d2a1a85d30a19770ed")},
        	{  5000, uint256S("0x9289ee81e679e10e6ed01232e70c19c9ef9682a38489227cd521a0136649b1ad")},
        	{ 15000, uint256S("0x7c7fc755c19616fd3eb156b53dae2bbf058972e0731f3d0ee54785cc222f4bbf")},
        	{114000, uint256S("0xf863ed327eede0641e1be668d43144e67c52c0785524faff2dd1a21bbdeabfbe")},
        	{116144, uint256S("0x7d0f9db5dbb9378ddd5bdd173b3c71fef8808690adec8ecc0bbb1b3648871b76")},
        	{120000, uint256S("0x8eba390707d2de0af87f7f6c1e191de995a351d3cb1ac1667d83c207f4580217")},
        	{123340, uint256S("0xfc425e4e4044bb8016a5bf7a3a8daaf5e5753017cd82c76cb8f168791b5b1986")},
        	{125000, uint256S("0x24d37d00a27106edb6acd213914b89c64396eef2a8e7957d22a46779b1300d9f")},
        	{125882, uint256S("0x350844dc30528e80f61ec00abb6c822493d401a165e0ef94ee0667ef8b76cf96")},
        	{128935, uint256S("0x6272ad45f8a3933718635c81eaf89a8c1271dea1f8ac776db091b6f7109be390")},
        	{130000, uint256S("0x96078b2d0c993fbee6041620a25076e7960e384bb3a5a4147b44f900687a3cf5")},
        	{131555, uint256S("0x52d456035f3dc3942d0aeb5662522f5bad59fc70f7e420917a140cf4b31320b0")},
        	{135000, uint256S("0xfdd4f9980cb734537e613718271a17b2d65169751779130839c59f8b62b4ed07")},
        	{137210, uint256S("0x35aefe3d8fad5952fa921ea0b235a7732b380af5d6a2e9e7cf757daf3f44a1b1")},
        	{140000, uint256S("0x9945603d44043bead1fb58733af3485346afcaf30cc34662792b7c761cb6a363")},
        	{145000, uint256S("0x03a40c535e5255708fcabce83c72adac5e6104bc018d27741ab3a5cb0bce635e")},
        	{148092, uint256S("0x8e87a19fe174db177ab5e0424037ce8218dfbfb4b53ac76b97190da62005bd92")},
        	{150000, uint256S("0x4991ffa9b3e1b33c187c2a49370ecc060d81f0af49f06b80df369360a9769d84")},
        	{160000, uint256S("0x60c3c7d8c15a9fc9144e2329b04e3cfd7564ab7b8a36cdd799fbb137c0c3d8c1")},
        	{163185, uint256S("0x17ff28e0320ad9ad3a88aea59781c4194cb2d488a6f512f8f6634c52a1bfd6bb")},
 	        {165000, uint256S("0x7207c10a2953745431bc856edeab5577ed42e213bba9b3b6b44c438cd64cd7ff")},
            {200000, uint256S("0x84f8e9caafc66ddbc2b9966f90f9ce678f7fb52398565b961a96725de7c39a72")},
            {300000, uint256S("0xbb303c36fcdad3a73e1139cb35a328aba7800919ff4e30d1b400354e3479fdcc")},
            {400000, uint256S("0x6114b34ed173c97c0a079cc73b109fb159f68130d6a7a454ec6bdc3b31e5ea94")},
            {500000, uint256S("0xb594b16df5942b18a847be7c744b7530edd38a1d5f0717b2dc750f5b8943c36e")},
            {600000, uint256S("0x95804336cea38a8ce730f0815309a442ddadec5ae0c399c577d08f82ab1bd6b0")},
            {700000, uint256S("0x163c06af19b63bfa7b8a8edfa9a524df87ad43ce07c319ae921857ce0a3261da")},
            {800000, uint256S("0xc0d3bcd037f3e7d4c7e6bf7f7ded2fdf2353fcb4d6010ced8c80e2d3d705ef48")},
            {894500, uint256S("0x66cebc08abae5ca00bd9cc96fe82b5fba7c63ea871a53697c16df49ba387a328")},	// switch-over to Dark Gravity Wave diff algo
            {899000, uint256S("0x0a5dcc77e839ab1f1696be664746dd558ab9405a9ecc1c0d1e79396fea7952d5")},
            }
        };

        chainTxData = ChainTxData{
            // Data from rpc: getchaintxstats 2016 7207c10a2953745431bc856edeab5577ed42e213bba9b3b6b44c438cd64cd7ff
            /* nTime    */ 1375631575,
            /* nTxCount */ 166597,
            /* dTxRate  */ 0.001791633467889262
        };
    }
};

/**
 * Testnet (v3)
 */
class CTestNetParams : public CChainParams {
public:
    CTestNetParams() {
        strNetworkID = CBaseChainParams::TESTNET;
        consensus.signet_blocks = false;
        consensus.signet_challenge.clear();
        consensus.nSubsidyHalvingInterval = 840000;
        consensus.BIP16Height = 0; // always enforce P2SH BIP16 on testnet
        consensus.BIP34Height = 76;
        consensus.BIP34Hash = uint256S("8075c771ed8b495ffd943980a95f702ab34fce3c8c54e379548bda33cc8c0573");
        consensus.BIP65Height = 76; // 8075c771ed8b495ffd943980a95f702ab34fce3c8c54e379548bda33cc8c0573
        consensus.BIP66Height = 76; // 8075c771ed8b495ffd943980a95f702ab34fce3c8c54e379548bda33cc8c0573
        consensus.CSVHeight = 6048; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
        consensus.SegwitHeight = 6048; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
        consensus.MinBIP9WarningHeight = 8064; // segwit activation height + miner confirmation window
        consensus.powLimit = uint256S("00000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
        consensus.nPowTargetTimespan = 3.5 * 24 * 60 * 60; // 3.5 days
        consensus.nPowTargetSpacing = 2.5 * 60;
        consensus.fPowAllowMinDifficultyBlocks = true;
        consensus.fPowNoRetargeting = false;
        consensus.nRuleChangeActivationThreshold = 1512; // 75% for testchains
        consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
        consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
        consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
        consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;

        // Deployment of Taproot (BIPs 340-342)
        consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
        consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartHeight = 2225664; // March 2022
        consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeoutHeight = 2435328; // 364 days later

        // Deployment of MWEB (LIP-0002, LIP-0003, and LIP-0004)
        consensus.vDeployments[Consensus::DEPLOYMENT_MWEB].bit = 4;
        consensus.vDeployments[Consensus::DEPLOYMENT_MWEB].nStartHeight = 2209536; // Jan/Feb 2022
        consensus.vDeployments[Consensus::DEPLOYMENT_MWEB].nTimeoutHeight = 2419200; // 364 days later

        consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000000000004260a1758f04aa");
        consensus.defaultAssumeValid = uint256S("0x4a280c0e150e3b74ebe19618e6394548c8a39d5549fd9941b9c431c73822fbd5"); // 1737876

        pchMessageStart[0] = 0xfd;
        pchMessageStart[1] = 0xd2;
        pchMessageStart[2] = 0xc8;
        pchMessageStart[3] = 0xf1;
        nDefaultPort = 19335;
        nPruneAfterHeight = 1000;
        m_assumed_blockchain_size = 4;
        m_assumed_chain_state_size = 1;

        genesis = CreateGenesisBlock(1486949366, 293345, 0x1e0ffff0, 1, 50 * COIN);
        consensus.hashGenesisBlock = genesis.GetHash();
        //assert(consensus.hashGenesisBlock == uint256S("0x4966625a4b2851d9fdee139e56211a0d88575f59ed816ff5e6a63deb4e3e29a0"));
        //assert(genesis.hashMerkleRoot == uint256S("0x97ddfbbae6be97fd6cdf3e7ca13232a3afff2353e29badfab7f73011edd4ced9"));

        vFixedSeeds.clear();
        vSeeds.clear();
        // nodes with support for servicebits filtering should be at the top
        vSeeds.emplace_back("testnet-seed.fairbrixtools.com");
        vSeeds.emplace_back("seed-b.fairbrix.loshan.co.uk");
        vSeeds.emplace_back("dnsseed-testnet.thrasher.io");

        base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
        base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
        base58Prefixes[SCRIPT_ADDRESS2] = std::vector<unsigned char>(1,58);
        base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,239);
        base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
        base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};

        bech32_hrp = "tfbx";
        mweb_hrp = "tmweb";

        vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_test), std::end(chainparams_seed_test));

        fDefaultConsistencyChecks = false;
        fRequireStandard = false;
        m_is_test_chain = true;
        m_is_mockable_chain = false;

        checkpointData = {
            {
                {300, uint256S("54e6075affe658d6574e04c9245a7920ad94dc5af8f5b37fd9a094e317769740")},
                {2056, uint256S("17748a31ba97afdc9a4f86837a39d287e3e7c7290a08a1d816c5969c78a83289")},
                {2352616, uint256S("7540437e7bf7831fa872ba8cfae85951a1e5dbb04c201b6f5def934d9299f3c2")}
            }
        };

        chainTxData = ChainTxData{
            // Data from RPC: getchaintxstats 4096 36d8ad003bac090cf7bf4e24fbe1d319554c8933b9314188d6096ac12648764d
            /* nTime    */ 1607986972,
            /* nTxCount */ 4229067,
            /* dTxRate  */ 0.06527021772939347,
        };
    }
};

/**
 * Regression test
 */
class CRegTestParams : public CChainParams {
public:
    explicit CRegTestParams(const ArgsManager& args) {
        strNetworkID =  CBaseChainParams::REGTEST;
        consensus.signet_blocks = false;
        consensus.signet_challenge.clear();
        consensus.nSubsidyHalvingInterval = 150;
        consensus.BIP16Height = 0;
        consensus.BIP34Height = 500; // BIP34 activated on regtest (Used in functional tests)
        consensus.BIP34Hash = uint256();
        consensus.BIP65Height = 1351; // BIP65 activated on regtest (Used in functional tests)
        consensus.BIP66Height = 1251; // BIP66 activated on regtest (Used in functional tests)
        consensus.CSVHeight = 432; // CSV activated on regtest (Used in rpc activation tests)
        consensus.SegwitHeight = 0; // SEGWIT is always activated on regtest unless overridden
        consensus.MinBIP9WarningHeight = 0;
        consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
        consensus.nPowTargetTimespan = 3.5 * 24 * 60 * 60; // 3.5 days
        consensus.nPowTargetSpacing = 2.5 * 60;
        consensus.fPowAllowMinDifficultyBlocks = true;
        consensus.fPowNoRetargeting = true;
        consensus.nRuleChangeActivationThreshold = 108; // 75% for testchains
        consensus.nMinerConfirmationWindow = 144; // Faster than normal for regtest (144 instead of 2016)

        consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
        consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
        consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;

        consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
        consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
        consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;

        // Deployment of MWEB (LIP-0002 and LIP-0003)
        consensus.vDeployments[Consensus::DEPLOYMENT_MWEB].bit = 4;
        consensus.vDeployments[Consensus::DEPLOYMENT_MWEB].nStartTime = 1601450001; // September 30, 2020
        consensus.vDeployments[Consensus::DEPLOYMENT_MWEB].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;

        consensus.nMinimumChainWork = uint256{};
        consensus.defaultAssumeValid = uint256{};

        pchMessageStart[0] = 0xfa;
        pchMessageStart[1] = 0xbf;
        pchMessageStart[2] = 0xb5;
        pchMessageStart[3] = 0xda;
        nDefaultPort = 19444;
        nPruneAfterHeight = 1000;
        m_assumed_blockchain_size = 0;
        m_assumed_chain_state_size = 0;

        UpdateActivationParametersFromArgs(args);

        genesis = CreateGenesisBlock(1296688602, 0, 0x207fffff, 1, 50 * COIN);
        consensus.hashGenesisBlock = genesis.GetHash();
        //assert(consensus.hashGenesisBlock == uint256S("0x530827f38f93b43ed12af0b3ad25a288dc02ed74d6d7857862df51fc56c416f9"));
        //assert(genesis.hashMerkleRoot == uint256S("0x97ddfbbae6be97fd6cdf3e7ca13232a3afff2353e29badfab7f73011edd4ced9"));

        vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
        vSeeds.clear();      //!< Regtest mode doesn't have any DNS seeds.

        fDefaultConsistencyChecks = true;
        fRequireStandard = true;
        m_is_test_chain = true;
        m_is_mockable_chain = true;

        checkpointData = {
            {
                {0, uint256S("530827f38f93b43ed12af0b3ad25a288dc02ed74d6d7857862df51fc56c416f9")},
            }
        };

        chainTxData = ChainTxData{
            0,
            0,
            0
        };

        base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
        base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
        base58Prefixes[SCRIPT_ADDRESS2] = std::vector<unsigned char>(1,58);
        base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,239);
        base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
        base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};

        bech32_hrp = "rfbx";
        mweb_hrp = "tmweb";
    }

    /**
     * Allows modifying the Version Bits regtest parameters.
     */
    void UpdateVersionBitsParameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout, int64_t nStartHeight, int64_t nTimeoutHeight)
    {
        consensus.vDeployments[d].nStartTime = nStartTime;
        consensus.vDeployments[d].nTimeout = nTimeout;
        consensus.vDeployments[d].nStartHeight = nStartHeight;
        consensus.vDeployments[d].nTimeoutHeight = nTimeoutHeight;
    }
    void UpdateActivationParametersFromArgs(const ArgsManager& args);
};

void CRegTestParams::UpdateActivationParametersFromArgs(const ArgsManager& args)
{
    if (args.IsArgSet("-segwitheight")) {
        int64_t height = args.GetArg("-segwitheight", consensus.SegwitHeight);
        if (height < -1 || height >= std::numeric_limits<int>::max()) {
            throw std::runtime_error(strprintf("Activation height %ld for segwit is out of valid range. Use -1 to disable segwit.", height));
        } else if (height == -1) {
            LogPrintf("Segwit disabled for testing\n");
            height = std::numeric_limits<int>::max();
        }
        consensus.SegwitHeight = static_cast<int>(height);
    }

    if (!args.IsArgSet("-vbparams")) return;

    for (const std::string& strDeployment : args.GetArgs("-vbparams")) {
        std::vector<std::string> vDeploymentParams;
        boost::split(vDeploymentParams, strDeployment, boost::is_any_of(":"));
        if (vDeploymentParams.size() < 3 || 5 < vDeploymentParams.size()) {
            throw std::runtime_error("Version bits parameters malformed, expecting deployment:start:end[:heightstart:heightend]");
        }
        int64_t nStartTime, nTimeout, nStartHeight, nTimeoutHeight;
        if (!ParseInt64(vDeploymentParams[1], &nStartTime)) {
            throw std::runtime_error(strprintf("Invalid nStartTime (%s)", vDeploymentParams[1]));
        }
        if (!ParseInt64(vDeploymentParams[2], &nTimeout)) {
            throw std::runtime_error(strprintf("Invalid nTimeout (%s)", vDeploymentParams[2]));
        }
        if (vDeploymentParams.size() > 3 && !ParseInt64(vDeploymentParams[3], &nStartHeight)) {
            throw std::runtime_error(strprintf("Invalid nStartHeight (%s)", vDeploymentParams[3]));
        }
        if (vDeploymentParams.size() > 4 && !ParseInt64(vDeploymentParams[4], &nTimeoutHeight)) {
            throw std::runtime_error(strprintf("Invalid nTimeoutHeight (%s)", vDeploymentParams[4]));
        }
        bool found = false;
        for (int j=0; j < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++j) {
            if (vDeploymentParams[0] == VersionBitsDeploymentInfo[j].name) {
                UpdateVersionBitsParameters(Consensus::DeploymentPos(j), nStartTime, nTimeout, nStartHeight, nTimeoutHeight);
                found = true;
                LogPrintf("Setting version bits activation parameters for %s to start=%ld, timeout=%ld, start_height=%d, timeout_height=%d\n", vDeploymentParams[0], nStartTime, nTimeout, nStartHeight, nTimeoutHeight);
                break;
            }
        }
        if (!found) {
            throw std::runtime_error(strprintf("Invalid deployment (%s)", vDeploymentParams[0]));
        }
    }
}

static std::unique_ptr<const CChainParams> globalChainParams;

const CChainParams &Params() {
    assert(globalChainParams);
    return *globalChainParams;
}

std::unique_ptr<const CChainParams> CreateChainParams(const ArgsManager& args, const std::string& chain)
{
    if (chain == CBaseChainParams::MAIN) {
        return std::unique_ptr<CChainParams>(new CMainParams());
    } else if (chain == CBaseChainParams::TESTNET) {
        return std::unique_ptr<CChainParams>(new CTestNetParams());
    } else if (chain == CBaseChainParams::SIGNET) {
        return std::unique_ptr<CChainParams>(new CTestNetParams()); // TODO: Support SigNet
    } else if (chain == CBaseChainParams::REGTEST) {
        return std::unique_ptr<CChainParams>(new CRegTestParams(args));
    }
    throw std::runtime_error(strprintf("%s: Unknown chain %s.", __func__, chain));
}

void SelectParams(const std::string& network)
{
    SelectBaseParams(network);
    globalChainParams = CreateChainParams(gArgs, network);
}