chainparams.h

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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2017 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#ifndef FABCOIN_CHAINPARAMS_H
#define FABCOIN_CHAINPARAMS_H

#include <chainparamsbase.h>
#include <consensus/params.h>
#include <primitives/block.h>
#include <protocol.h>

#include <memory>
#include <vector>

struct CDNSSeedData {
    std::string host;
    bool supportsServiceBitsFiltering;
    CDNSSeedData(const std::string &strHost, bool supportsServiceBitsFilteringIn) : host(strHost), supportsServiceBitsFiltering(supportsServiceBitsFilteringIn) {}
};

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

typedef std::map<int, uint256> MapCheckpoints;

struct CCheckpointData {
    MapCheckpoints mapCheckpoints;
};

struct ChainTxData {
    int64_t nTime;
    int64_t nTxCount;
    double dTxRate;
};

class CChainParams
{
public:
    enum Base58Type {
        PUBKEY_ADDRESS,
        SCRIPT_ADDRESS,
        SECRET_KEY,
        EXT_PUBLIC_KEY,
        EXT_SECRET_KEY,

        MAX_BASE58_TYPES
    };

    const Consensus::Params& GetConsensus() const { return consensus; }
    const CMessageHeader::MessageStartChars& MessageStart() const { return pchMessageStart; }
    int GetDefaultPort() const { return nDefaultPort; }

    const CBlock& GenesisBlock() const { return genesis; }
    bool MiningRequiresPeers() const { return fMiningRequiresPeers; }
    bool DefaultConsistencyChecks() const { return fDefaultConsistencyChecks; }
    bool RequireStandard() const { return fRequireStandard; }
    uint64_t PruneAfterHeight() const { return nPruneAfterHeight; }
    unsigned int EquihashN(uint32_t nHeight = 0) const { return (nHeight < consensus.EquihashFABHeight) /*|| (strNetworkID != CBaseChainParams::MAIN)*/ ? nEquihashN : 184; }
    unsigned int EquihashK(uint32_t nHeight = 0) const { return (nHeight < consensus.EquihashFABHeight) /*|| (strNetworkID != CBaseChainParams::MAIN)*/ ? nEquihashK : 7; }
    int64_t GetnPowTargetSpacing( uint32_t nHeight = 0 ) const { return (nHeight < consensus.EquihashFABHeight) ? consensus.nPowTargetSpacing : 2* consensus.nPowTargetSpacing; }
    bool MineBlocksOnDemand() const { return fMineBlocksOnDemand; }
    std::string NetworkIDString() const { return strNetworkID; }
    const std::vector<CDNSSeedData>& DNSSeeds() const { return vSeeds; }
    const std::vector<unsigned char>& Base58Prefix(Base58Type type) const { return base58Prefixes[type]; }
    const std::vector<SeedSpec6>& FixedSeeds() const { return vFixedSeeds; }
    const CCheckpointData& Checkpoints() const { return checkpointData; }
    const ChainTxData& TxData() const { return chainTxData; }
    void UpdateVersionBitsParameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout);
protected:
    CChainParams() {}

    Consensus::Params consensus;
    CMessageHeader::MessageStartChars pchMessageStart;
    int nDefaultPort;
    uint64_t nPruneAfterHeight;
    unsigned int nEquihashN = 0;
    unsigned int nEquihashK = 0;
    std::vector<CDNSSeedData> vSeeds;
    std::vector<unsigned char> base58Prefixes[MAX_BASE58_TYPES];
    std::string strNetworkID;
    CBlock genesis;
    std::vector<SeedSpec6> vFixedSeeds;
    bool fMiningRequiresPeers;
    bool fDefaultConsistencyChecks;
    bool fRequireStandard;
    bool fMineBlocksOnDemand;
    CCheckpointData checkpointData;
    ChainTxData chainTxData;
};

std::unique_ptr<CChainParams> CreateChainParams(const std::string& chain);

const CChainParams &Params();
const CChainParams &GetParams();
void SelectParams(const std::string& chain);

void UpdateVersionBitsParameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout);

#endif // FABCOIN_CHAINPARAMS_H