// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2015 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 "consensus/merkle.h"

#include "tinyformat.h"
#include "util.h"
#include "utilstrencodings.h"

#include <assert.h>

#include <boost/assign/list_of.hpp>

#include "chainparamsseeds.h"

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 = "NY Times 05/Oct/2011 Steve Jobs, Apple’s Visionary, Dies at 56";
    const CScript genesisOutputScript = CScript() << ParseHex("040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9") << OP_CHECKSIG;
    return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}

/**
 * Main network
 */
/**
 * 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
 */

class CMainParams : public CChainParams {
public:
    CMainParams() {
        strNetworkID = "main";
        consensus.nSubsidyHalvingInterval = 438000;
        consensus.BIP34Height = 881601 ;
        consensus.BIP34Hash = uint256S("7f319c1f6314817ee7aca25e3d16aaa9c0553486ff0327e22068668ec4bee4e1");
        consensus.BIP65Height = 920000; // obowiązkowa wersja bloku 4 - jszcze nie ma! ustawiam w przyszłość
        consensus.BIP66Height = 920000; // obowiązkowa wersja bloku 3 - jw bo obecnie kopią też v2
        consensus.powLimit = uint256S("00000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); 
        consensus.nPowTargetTimespan = 4 * 60 * 60;
        consensus.nPowTargetSpacing = 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 = 1199145601; // January 1, 2008
        consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008

        // Deployment of BIP68, BIP112, and BIP113.
        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1485561600; // January 28, 2017
        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1517356801; // January 31st, 2018

        // Deployment of SegWit (BIP141, BIP143, and BIP147)
        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1485561600; // January 28, 2017
        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1517356801; // January 31st, 2018

        // The best chain should have at least this much work.
        consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000000000281e2c943691aa");//done

        // By default assume that the signatures in ancestors of this block are valid.
        consensus.defaultAssumeValid = uint256S("0x1a10d5988b25ecc40bcf94e976d18dc80230d7200e5be29ae65a81f67fef0c15"); //881352

        /**
         * 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] = 0xfb; //done
        pchMessageStart[1] = 0xc0;
        pchMessageStart[2] = 0xb6;
        pchMessageStart[3] = 0xdb;
        nDefaultPort = 9334; //done
        nPruneAfterHeight = 100000;

        genesis = CreateGenesisBlock(1394716143, 949591, 0x1e0ffff0, 1, 44 * COIN); //todo
        consensus.hashGenesisBlock = genesis.GetHash();
        assert(consensus.hashGenesisBlock == uint256S("0x58c63157cc65022e582ebf3b192fa43b9ba8558eeb26954706d8d3c6924853e5"));//ok
        assert(genesis.hashMerkleRoot == uint256S("0xf6513239070801245a6707a88beea6dfaf818cf6e48c4375c3b9ef2f31f2235f"));//ok

        // Note that of those with the service bits flag, most only support a subset of possible options
        vSeeds.push_back(CDNSSeedData("seed.plncoin.org", "seed.plncoin.org"));
        vSeeds.push_back(CDNSSeedData("seed1.plncoin.org", "seed1.plncoin.org"));
        vSeeds.push_back(CDNSSeedData("seed2.plncoin.org", "seed2.plncoin.org"));
        vSeeds.push_back(CDNSSeedData("seed3.plncoin.org", "seed3.plncoin.org"));
        vSeeds.push_back(CDNSSeedData("seed4.plncoin.org", "seed4.plncoin.org"));
        vSeeds.push_back(CDNSSeedData("plncoin.org", "plncoin.org", true));//done
        vSeeds.push_back(CDNSSeedData("seed.plncoin.org", "seed.plncoin.org", true));
        vSeeds.push_back(CDNSSeedData("plncoin.org", "plncoin.org"));
        vSeeds.push_back(CDNSSeedData("rav3n.dtdns.net", "rav3n.dtdns.net"));

        base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,22);
        base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
        base58Prefixes[SCRIPT_ADDRESS2] = std::vector<unsigned char>(1,50);
        base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,150);
        base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
        base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();

        vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));

        fMiningRequiresPeers = true;
        fDefaultConsistencyChecks = false;
        fRequireStandard = true;
        fMineBlocksOnDemand = false;

        checkpointData = (CCheckpointData) {//done
            boost::assign::map_list_of
            (     0, uint256S("0x58c63157cc65022e582ebf3b192fa43b9ba8558eeb26954706d8d3c6924853e5"))
            (881268, uint256S("0x4d9efac3b6ce3d767b8e3ba3f2a260f8478346ee7ec82342ff46ec760d7b89cd"))
        };

        chainTxData = ChainTxData{ //done
            // Data as of block  1a10d5988b25ecc40bcf94e976d18dc80230d7200e5be29ae65a81f67fef0c15 (height 881352).
            1503767964, // * UNIX timestamp of last known number of transactions
            1125081,  // * total number of transactions between genesis and that timestamp
                    //   (the tx=... number in the SetBestChain debug.log lines)
            0.06     // * estimated number of transactions per second after that timestamp
        };
    }
};
static CMainParams mainParams;

/**
 * Testnet (v3)
 */
class CTestNetParams : public CChainParams {
public:
    CTestNetParams() {
        strNetworkID = "test";
        consensus.nSubsidyHalvingInterval = 840000;
        consensus.BIP34Height = 5;
        //consensus.BIP34Hash = uint256S("8075c771ed8b495ffd943980a95f702ab34fce3c8c54e379548bda33cc8c0573");
        consensus.BIP65Height = 10; // 8075c771ed8b495ffd943980a95f702ab34fce3c8c54e379548bda33cc8c0573
        consensus.BIP66Height = 10; // 8075c771ed8b495ffd943980a95f702ab34fce3c8c54e379548bda33cc8c0573
        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 = 1199145601; // January 1, 2008
        consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008

        
        // Deployment of BIP68, BIP112, and BIP113.
        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1485561600; // January 28, 2017
        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1517356801; // January 31st, 2018

        // Deployment of SegWit (BIP141, BIP143, and BIP147)
        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1485561600; // January 1, 2017
        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1517356801; // January 31st, 2018

        // The best chain should have at least this much work.
        consensus.nMinimumChainWork = uint256S("0x0");

        // By default assume that the signatures in ancestors of this block are valid.
        consensus.defaultAssumeValid = uint256S("0x0"); //8711

        pchMessageStart[0] = 0xfc;
        pchMessageStart[1] = 0xc1;
        pchMessageStart[2] = 0xb7;
        pchMessageStart[3] = 0xdc;
        nDefaultPort = 19333;
        nPruneAfterHeight = 1000;

        genesis = CreateGenesisBlock(1300000000, 765943, 0x1e0ffff0, 1, 44 * COIN);
        consensus.hashGenesisBlock = genesis.GetHash();
        assert(consensus.hashGenesisBlock == uint256S("0x54790e8cdee8c1c9d2e9aeeab70b5e8fb0efc88b8dd96ba194634eb8f49ba91f"));
        assert(genesis.hashMerkleRoot == uint256S("0xf6513239070801245a6707a88beea6dfaf818cf6e48c4375c3b9ef2f31f2235f"));

        vFixedSeeds.clear();
        vSeeds.clear();
        // nodes with support for servicebits filtering should be at the top
        vSeeds.push_back(CDNSSeedData("plncoin.org", "testnet.plncoin.org"));
        vSeeds.push_back(CDNSSeedData("plncoin.org", "testnet2.plncoin.org", true));
        vSeeds.push_back(CDNSSeedData("plncoin.org", "testnet3.plncoin.org", true));
        vSeeds.push_back(CDNSSeedData("plncoin.org", "testnet4.plncoin.org", true));
        vSeeds.push_back(CDNSSeedData("rav3n.dtdns.net", "rav3n.dtdns.net", true));

        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] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
        base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();

        vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));

        fMiningRequiresPeers = true;
        fDefaultConsistencyChecks = false;
        fRequireStandard = false;
        fMineBlocksOnDemand = false;

        checkpointData = (CCheckpointData) {
            boost::assign::map_list_of
            ( 0, uint256S("0x54790e8cdee8c1c9d2e9aeeab70b5e8fb0efc88b8dd96ba194634eb8f49ba91f")),
        };

        chainTxData = ChainTxData{
            // Data as of block f2dc531da6be01f53774f970aaaca200c7a8317ee9fd398ee733b40f14e265d1 (height 8702)
            1487715270,
            8731,
            0.01
        };

    }
};
static CTestNetParams testNetParams;

/**
 * Regression test
 */
class CRegTestParams : public CChainParams {
public:
    CRegTestParams() {
        strNetworkID = "regtest";
        consensus.nSubsidyHalvingInterval = 150;
        consensus.BIP34Height = 100000000; // BIP34 has not activated on regtest (far in the future so block v1 are not rejected in tests)
        consensus.BIP34Hash = uint256();
        consensus.BIP65Height = 1351; // BIP65 activated on regtest (Used in rpc activation tests)
        consensus.BIP66Height = 1251; // BIP66 activated on regtest (Used in rpc activation tests)
        consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
        consensus.nPowTargetTimespan = 3.5 * 24 * 60 * 60; // two weeks
        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 = 999999999999ULL;
        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 0;
        consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 999999999999ULL;
        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 0;
        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 999999999999ULL;

        // The best chain should have at least this much work.
        consensus.nMinimumChainWork = uint256S("0x00");

        // By default assume that the signatures in ancestors of this block are valid.
        consensus.defaultAssumeValid = uint256S("0x00");

        pchMessageStart[0] = 0xfa;
        pchMessageStart[1] = 0xbf;
        pchMessageStart[2] = 0xb5;
        pchMessageStart[3] = 0xda;
        nDefaultPort = 19333;
        nPruneAfterHeight = 1000;

        genesis = CreateGenesisBlock(1300000000, 765943, 0x1e0ffff0, 1, 44 * COIN);
        consensus.hashGenesisBlock = genesis.GetHash();
        assert(consensus.hashGenesisBlock == uint256S("0x54790e8cdee8c1c9d2e9aeeab70b5e8fb0efc88b8dd96ba194634eb8f49ba91f"));
        assert(genesis.hashMerkleRoot == uint256S("0xf6513239070801245a6707a88beea6dfaf818cf6e48c4375c3b9ef2f31f2235f"));

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

        fMiningRequiresPeers = false;
        fDefaultConsistencyChecks = true;
        fRequireStandard = false;
        fMineBlocksOnDemand = true; 

        checkpointData = (CCheckpointData){
            boost::assign::map_list_of
            ( 0, uint256S("0x530827f38f93b43ed12af0b3ad25a288dc02ed74d6d7857862df51fc56c416f9"))
        };

        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] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
        base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
    }

    void UpdateBIP9Parameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout)
    {
        consensus.vDeployments[d].nStartTime = nStartTime;
        consensus.vDeployments[d].nTimeout = nTimeout;
    }
};
static CRegTestParams regTestParams;

static CChainParams *pCurrentParams = 0;

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

CChainParams& Params(const std::string& chain)
{
    if (chain == CBaseChainParams::MAIN)
            return mainParams;
    else if (chain == CBaseChainParams::TESTNET)
            return testNetParams;
    else if (chain == CBaseChainParams::REGTEST)
            return regTestParams;
    else
        throw std::runtime_error(strprintf("%s: Unknown chain %s.", __func__, chain));
}

void SelectParams(const std::string& network)
{
    SelectBaseParams(network);
    pCurrentParams = &Params(network);
}

void UpdateRegtestBIP9Parameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout)
{
    regTestParams.UpdateBIP9Parameters(d, nStartTime, nTimeout);
}