// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin 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 "random.h"
#include "util.h"
#include "utilstrencodings.h"

#include <assert.h>

#include <boost/assign/list_of.hpp>

using namespace std;
using namespace boost::assign;

struct SeedSpec6 {
    uint8_t addr[16];
    uint16_t port;
};

#include "chainparamsseeds.h"

/**
 * Main network
 */

//! Convert the pnSeeds6 array into usable address objects.
static void convertSeed6(std::vector<CAddress> &vSeedsOut, const SeedSpec6 *data, unsigned int count)
{
    // It'll only connect to one or two seed nodes because once it connects,
    // it'll get a pile of addresses with newer timestamps.
    // Seed nodes are given a random 'last seen time' of between one and two
    // weeks ago.
    const int64_t nOneWeek = 7*24*60*60;
    for (unsigned int i = 0; i < count; i++)
    {
        struct in6_addr ip;
        memcpy(&ip, data[i].addr, sizeof(ip));
        CAddress addr(CService(ip, data[i].port));
        addr.nTime = GetTime() - GetRand(nOneWeek) - nOneWeek;
        vSeedsOut.push_back(addr);
    }
}

/**
 * What makes a good checkpoint block?
 * + Is surrounded by blocks with reasonable timestamps
 *   (no blocks before with a timestamp after, none after with
 *    timestamp before)
 * + Contains no strange transactions
 */
static Checkpoints::MapCheckpoints mapCheckpoints =
        boost::assign::map_list_of
               ( 0, uint256("0xbd01d5bff63876c9d5f2bc7a3e36fc7d3685b899f18c44fec09f8cf4835f839f"))
			   ( 1, uint256("0x0355e4c47d1c93cf9e7d9ab3c1ee6a15f7b6c2e6147045811e396a1695d194a8"))
			   ( 150000, uint256("0x28f15ec5f0c84ff38b8fa47e2a67cc79608778eed9efa0edccd21dcb134d883e"))
        ;
static const Checkpoints::CCheckpointData data = {
        &mapCheckpoints,
        1498836652, // * UNIX timestamp of last checkpoint block
        181236,    // * total number of transactions between genesis and last checkpoint
                    //   (the tx=... number in the SetBestChain debug.log lines)
        8000.0     // * estimated number of transactions per day after checkpoint
    };

static Checkpoints::MapCheckpoints mapCheckpointsTestnet =
        boost::assign::map_list_of
        (     0, uint256("0xaf24e09cdc9bb1c1379ea8fe7201ea32b5488f8b396a96618f53f5a61f752e1d"))
        ;
static const Checkpoints::CCheckpointData dataTestnet = {
        &mapCheckpointsTestnet,
        1365458829,
        547,
        576
    };

static Checkpoints::MapCheckpoints mapCheckpointsRegtest =
        boost::assign::map_list_of
        ( 0, uint256("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"))
        ;
static const Checkpoints::CCheckpointData dataRegtest = {
        &mapCheckpointsRegtest,
        0,
        0,
        0
    };

class CMainParams : public CChainParams {
public:
    CMainParams() {
        networkID = CBaseChainParams::MAIN;
        strNetworkID = "main";
        /** 
         * 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 4-byte int at any alignment.
         */
        pchMessageStart[0] = 0xee;
        pchMessageStart[1] = 0xea;
        pchMessageStart[2] = 0xae;
        pchMessageStart[3] = 0xef;
        vAlertPubKey = ParseHex("");
        nDefaultPort = 12834;
        bnProofOfWorkLimit = ~uint256(0) >> 20;
        nSubsidyHalvingInterval = 261350;
        nEnforceBlockUpgradeMajority = 750;
        nRejectBlockOutdatedMajority = 950;
        nToCheckBlockUpgradeMajority = 1000;
        nMinerThreads = 0;
        nTargetTimespan = 4 * 60 * 60; // 4 hours
        nTargetSpacing = 4 * 60; // 4 minutes
        nMaxTipAge = 24 * 60 * 60;


        const char* pszTimestamp = "Francs Genesis Block";
        CMutableTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = 0.1 * COIN;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("040182710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock = 0;
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = 1;
        genesis.nTime    = 1446667373;
        genesis.nBits    = 0x1e0ffff0;
        genesis.nNonce   = 302581;

        hashGenesisBlock = genesis.GetHash();
        assert(hashGenesisBlock == uint256("0xbd01d5bff63876c9d5f2bc7a3e36fc7d3685b899f18c44fec09f8cf4835f839f"));
        assert(genesis.hashMerkleRoot == uint256("0x4951c14dd98b7acbcc68584f8cfb3da32a80861b328a342772740f01ddd1c13b"));

        vSeeds.push_back(CDNSSeedData("185.14.184.239", "185.14.184.239"));
        vSeeds.push_back(CDNSSeedData("157.161.128.59", "157.161.128.59"));
        vSeeds.push_back(CDNSSeedData("188.165.194.146", "188.165.194.146"));
        vSeeds.push_back(CDNSSeedData("104.131.19.87", "104.131.19.87"));
        vSeeds.push_back(CDNSSeedData("144.76.238.2", "144.76.238.2"));		
		vSeeds.push_back(CDNSSeedData("167.160.36.126", "167.160.36.126"));
        vSeeds.push_back(CDNSSeedData("108.61.10.90", "108.61.10.90"));
        vSeeds.push_back(CDNSSeedData("85.25.198.151", "85.25.198.151"));



        base58Prefixes[PUBKEY_ADDRESS] = list_of(35);
        base58Prefixes[SCRIPT_ADDRESS] = list_of(5);
        base58Prefixes[SECRET_KEY] =     list_of(163);
        base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x88)(0xB2)(0x1E);
        base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x88)(0xAD)(0xE4);

        convertSeed6(vFixedSeeds, pnSeed6_main, ARRAYLEN(pnSeed6_main));

        fRequireRPCPassword = true;
        fMiningRequiresPeers = true;
        fAllowMinDifficultyBlocks = false;
        fDefaultConsistencyChecks = false;
        fRequireStandard = true;
        fMineBlocksOnDemand = false;
        fSkipProofOfWorkCheck = false;
        fTestnetToBeDeprecatedFieldRPC = false;

        // Francs: Mainnet v2 enforced as of block 999m planing and testing for now for BIP34
        nEnforceV2AfterHeight = 999000000;
    }

    const Checkpoints::CCheckpointData& Checkpoints() const 
    {
        return data;
    }
};
static CMainParams mainParams;

/**
 * Testnet (v3)
 */
class CTestNetParams : public CMainParams {
public:
    CTestNetParams() {
        networkID = CBaseChainParams::TESTNET;
        strNetworkID = "test";
        pchMessageStart[0] = 0xfc;
        pchMessageStart[1] = 0xc1;
        pchMessageStart[2] = 0xb7;
        pchMessageStart[3] = 0xdc;
        vAlertPubKey = ParseHex("0449623fc74489a947c4b15d579115591add020e53b3490bf47297dfa3762250625f8ecc2fb4fc59f69bdce8f7080f3167808276ed2c79d297054367566038aa82");
        nDefaultPort = 22834;
        nEnforceBlockUpgradeMajority = 51;
        nRejectBlockOutdatedMajority = 75;
        nToCheckBlockUpgradeMajority = 100;
        nMinerThreads = 0;
        nTargetTimespan = 3.5 * 24 * 60 * 60; // 3.5 days
        nTargetSpacing = 2.5 * 60; // 2.5 minutes
        nMaxTipAge = 0x7fffffff;

        //! Modify the testnet genesis block so the timestamp is valid for a later start.
        genesis.nTime = 1317798646;
        genesis.nNonce = 0;

		
        hashGenesisBlock = genesis.GetHash();
        assert(hashGenesisBlock == uint256("0x0885f15adbee7d8ddfbe7d2322384b99bd59d8eedde1e420a02b9188d59930e9"));

        vFixedSeeds.clear();
        vSeeds.clear();
        vSeeds.push_back(CDNSSeedData("", ""));


        base58Prefixes[PUBKEY_ADDRESS] = list_of(111);
        base58Prefixes[SCRIPT_ADDRESS] = list_of(196);
        base58Prefixes[SECRET_KEY]     = list_of(239);
        base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x35)(0x87)(0xCF);
        base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x35)(0x83)(0x94);

        convertSeed6(vFixedSeeds, pnSeed6_test, ARRAYLEN(pnSeed6_test));

        fRequireRPCPassword = true;
        fMiningRequiresPeers = true;
        fAllowMinDifficultyBlocks = true;
        fDefaultConsistencyChecks = false;
        fRequireStandard = false;
        fMineBlocksOnDemand = false;
        fTestnetToBeDeprecatedFieldRPC = true;

        // Francs: Testnet v2 enforced as of block 400k
        nEnforceV2AfterHeight = 400000;
    }
    const Checkpoints::CCheckpointData& Checkpoints() const 
    {
        return dataTestnet;
    }
};
static CTestNetParams testNetParams;

/**
 * Regression test
 */
class CRegTestParams : public CTestNetParams {
public:
    CRegTestParams() {
        networkID = CBaseChainParams::REGTEST;
        strNetworkID = "regtest";
        pchMessageStart[0] = 0xfa;
        pchMessageStart[1] = 0xbf;
        pchMessageStart[2] = 0xb5;
        pchMessageStart[3] = 0xda;
        nSubsidyHalvingInterval = 150;
        nEnforceBlockUpgradeMajority = 750;
        nRejectBlockOutdatedMajority = 950;
        nToCheckBlockUpgradeMajority = 1000;
        nMinerThreads = 1;
        nTargetTimespan = 3.5 * 24 * 60 * 60; // 3.5 days
        nTargetSpacing = 2.5 * 60; // 2.5 minutes
        bnProofOfWorkLimit = ~uint256(0) >> 1;
        nMaxTipAge = 24 * 60 * 60;
        genesis.nTime = 1296688602;
        genesis.nBits = 0x207fffff;
        genesis.nNonce = 1;
        hashGenesisBlock = genesis.GetHash();
        nDefaultPort = 19444;
		
         assert(hashGenesisBlock == uint256("0x2a16aee96c8d51f66aca96e830793631b936b10946db7661bbe397e8814e1aa3"));

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

        fRequireRPCPassword = false;
        fMiningRequiresPeers = false;
        fAllowMinDifficultyBlocks = true;
        fDefaultConsistencyChecks = true;
        fRequireStandard = false;
        fMineBlocksOnDemand = true;
        fTestnetToBeDeprecatedFieldRPC = false;

        // Francs: v2 enforced using Bitcoin's supermajority rule
        nEnforceV2AfterHeight = -1;
    }
    const Checkpoints::CCheckpointData& Checkpoints() const 
    {
        return dataRegtest;
    }
};
static CRegTestParams regTestParams;

/**
 * Unit test
 */
class CUnitTestParams : public CMainParams, public CModifiableParams {
public:
    CUnitTestParams() {
        networkID = CBaseChainParams::UNITTEST;
        strNetworkID = "unittest";
        nDefaultPort = 18445;
        vFixedSeeds.clear(); //! Unit test mode doesn't have any fixed seeds.
        vSeeds.clear();  //! Unit test mode doesn't have any DNS seeds.

        fRequireRPCPassword = false;
        fMiningRequiresPeers = false;
        fDefaultConsistencyChecks = true;
        fAllowMinDifficultyBlocks = false;
        fMineBlocksOnDemand = true;

        // Francs: v2 enforced using Bitcoin's supermajority rule
        nEnforceV2AfterHeight = -1;
    }

    const Checkpoints::CCheckpointData& Checkpoints() const 
    {
        // UnitTest share the same checkpoints as MAIN
        return data;
    }

    //! Published setters to allow changing values in unit test cases
    virtual void setSubsidyHalvingInterval(int anSubsidyHalvingInterval)  { nSubsidyHalvingInterval=anSubsidyHalvingInterval; }
    virtual void setEnforceBlockUpgradeMajority(int anEnforceBlockUpgradeMajority)  { nEnforceBlockUpgradeMajority=anEnforceBlockUpgradeMajority; }
    virtual void setRejectBlockOutdatedMajority(int anRejectBlockOutdatedMajority)  { nRejectBlockOutdatedMajority=anRejectBlockOutdatedMajority; }
    virtual void setToCheckBlockUpgradeMajority(int anToCheckBlockUpgradeMajority)  { nToCheckBlockUpgradeMajority=anToCheckBlockUpgradeMajority; }
    virtual void setDefaultConsistencyChecks(bool afDefaultConsistencyChecks)  { fDefaultConsistencyChecks=afDefaultConsistencyChecks; }
    virtual void setAllowMinDifficultyBlocks(bool afAllowMinDifficultyBlocks) {  fAllowMinDifficultyBlocks=afAllowMinDifficultyBlocks; }
    virtual void setSkipProofOfWorkCheck(bool afSkipProofOfWorkCheck) { fSkipProofOfWorkCheck = afSkipProofOfWorkCheck; }
};
static CUnitTestParams unitTestParams;


static CChainParams *pCurrentParams = 0;

CModifiableParams *ModifiableParams()
{
   assert(pCurrentParams);
   assert(pCurrentParams==&unitTestParams);
   return (CModifiableParams*)&unitTestParams;
}

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

CChainParams &Params(CBaseChainParams::Network network) {
    switch (network) {
        case CBaseChainParams::MAIN:
            return mainParams;
        case CBaseChainParams::TESTNET:
            return testNetParams;
        case CBaseChainParams::REGTEST:
            return regTestParams;
        case CBaseChainParams::UNITTEST:
            return unitTestParams;
        default:
            assert(false && "Unimplemented network");
            return mainParams;
    }
}

void SelectParams(CBaseChainParams::Network network) {
    SelectBaseParams(network);
    pCurrentParams = &Params(network);
}

bool SelectParamsFromCommandLine()
{
    CBaseChainParams::Network network = NetworkIdFromCommandLine();
    if (network == CBaseChainParams::MAX_NETWORK_TYPES)
        return false;

    SelectParams(network);
    return true;
}