text: // Copyright (c) 2010 Satoshi Nakamoto
  // Copyright (c) 2009-2016 The Bitcoin Core developers
  // Copyright (c) 2016-2019 The MagnaChain Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include "coding/base58.h"
  #include "misc/amount.h"
  #include "chain/chain.h"
  #include "chain/chainparams.h"
  #include "consensus/consensus.h"
  #include "consensus/params.h"
  #include "consensus/validation.h"
  #include "io/core_io.h"
  #include "init.h"
  #include "validation/validation.h"
  #include "mining/miner.h"
  #include "net/net.h"
  #include "policy/fees.h"
  #include "misc/pow.h"
  #include "rpc/blockchain.h"
  #include "mining/mining.h"
  #include "rpc/server.h"
  #include "transaction/txmempool.h"
  #include "utils/util.h"
  #include "utils/utilstrencodings.h"
  #include "validation/validationinterface.h"
  #include "misc/warnings.h"
  #include "univalue.h"
  #include "wallet/rpcwallet.h"
  #include "wallet/wallet.h"
  #include "consensus/merkle.h"
  #include "wallet/coincontrol.h"
  
  #include <memory>
  #include <stdint.h>
  #include <boost/algorithm/string/replace.hpp>
  #include <boost/filesystem.hpp>
  #include <boost/thread.hpp>
  #include "chain/branchchain.h"
  
  unsigned int ParseConfirmTarget(const UniValue& value)
  {
      int target = value.get_int();
      unsigned int max_target = ::feeEstimator.HighestTargetTracked(FeeEstimateHorizon::LONG_HALFLIFE);
      if (target < 1 || (unsigned int)target > max_target) {
          throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Invalid conf_target, must be between %u - %u", 1, max_target));
      }
      return (unsigned int)target;
  }
  
  /**
   * Return average network hashes per second based on the last 'lookup' blocks,
   * or from the last difficulty change if 'lookup' is nonpositive.
   * If 'height' is nonnegative, compute the estimate at the time when a given block was found.
   */
  UniValue GetNetworkHashPS(int lookup, int height) {
      MCBlockIndex *pb = chainActive.Tip();
  
      if (height >= 0 && height < chainActive.Height())
          pb = chainActive[height];
  
      if (pb == nullptr || !pb->nHeight)
          return 0;
  
      // If lookup is -1, then use blocks since last difficulty change.
      if (lookup <= 0)
          lookup = pb->nHeight % Params().GetConsensus().DifficultyAdjustmentInterval() + 1;
  
      // If lookup is larger than chain, then set it to chain length.
      if (lookup > pb->nHeight)
          lookup = pb->nHeight;
  
      MCBlockIndex *pb0 = pb;
      int64_t minTime = pb0->GetBlockTime();
      int64_t maxTime = minTime;
      for (int i = 0; i < lookup; i++) {
          pb0 = pb0->pprev;
          int64_t time = pb0->GetBlockTime();
          minTime = std::min(time, minTime);
          maxTime = std::max(time, maxTime);
      }
  
      // In case there's a situation where minTime == maxTime, we don't want a divide by zero exception.
      if (minTime == maxTime)
          return 0;
  
      arith_uint256 workDiff = pb->nChainWork - pb0->nChainWork;
      int64_t timeDiff = maxTime - minTime;
  
      return workDiff.getdouble() / timeDiff;
  }
  
  UniValue getnetworkhashps(const JSONRPCRequest& request)
  {
      if (request.fHelp || request.params.size() > 2)
          throw std::runtime_error(
              "getnetworkhashps ( nblocks height )\n"
              "\nReturns the estimated network hashes per second based on the last n blocks.\n"
              "Pass in [blocks] to override # of blocks, -1 specifies since last difficulty change.\n"
              "Pass in [height] to estimate the network speed at the time when a certain block was found.\n"
              "\nArguments:\n"
              "1. nblocks     (numeric, optional, default=120) The number of blocks, or -1 for blocks since last difficulty change.\n"
              "2. height      (numeric, optional, default=-1) To estimate at the time of the given height.\n"
              "\nResult:\n"
              "x             (numeric) Hashes per second estimated\n"
              "\nExamples:\n"
              + HelpExampleCli("getnetworkhashps", "")
              + HelpExampleRpc("getnetworkhashps", "")
         );
  
      LOCK(cs_main);
      return GetNetworkHashPS(!request.params[0].isNull() ? request.params[0].get_int() : 120, !request.params[1].isNull() ? request.params[1].get_int() : -1);
  }
  
  typedef std::vector<unsigned char> valtype;
  bool SignBlock(MCBlock *pblock, MCKeyStore* keystore)
  {
  	assert(pblock->vtx.size() >= 2);
  
  	//get private key
  	MCKey key;
  	std::vector<valtype> vSolutions;
  	txnouttype whichType;
  	const MCScript& spk = pblock->vtx[1]->vout[0].scriptPubKey;
  	if (!Solver(spk, whichType, vSolutions))
  	{
  		return false;
  	}
  	if ((whichType == TX_PUBKEYHASH && Params().IsMainChain()) || (whichType == TX_MORTGAGE_COIN && !Params().IsMainChain()))//TX_MINE_MORTGAGE 
  	{
  		if (!keystore->GetKey(uint160(vSolutions[0]), key))
  		{
  			return false;
  		}
  	}
  	else if (whichType == TX_PUBKEY)
  	{
  		valtype& vchPubKey = vSolutions[0];
  		if (!keystore->GetKey(Hash160(vchPubKey), key))
  		{
  			return false;
  		}
  		if (key.GetPubKey() != vchPubKey)
  		{
  			return false;
  		}
  	}
  	else
  		return false;
  
  	pblock->vchBlockSig.clear();
  	valtype vSignData;
  	if (!key.Sign(pblock->GetHashNoSignData(), vSignData))
  	{
  		return false;
  	}
  	MCPubKey pubkey = key.GetPubKey();
  	valtype vchPubKey(pubkey.begin(), pubkey.end());
  	pblock->vchBlockSig << vchPubKey << vSignData;
  	return true;
  }
  
  UniValue generateBlocks(MCWallet* keystoreIn, std::vector<MCOutput>& vecOutput, int nGenerate, uint64_t nMaxTries, bool keepScript, GenerateBlockCB pf, MCChainParams* params, MCCoinsViewCache *pcoinsCache)
  {
  	if( vecOutput.empty() )
  		throw JSONRPCError(RPC_INTERNAL_ERROR, "no address with enough coins\n");
  
      if (pcoinsCache == nullptr) {
          pcoinsCache = ::pcoinsTip;
      }
  
      int nHeightEnd = 0;
      int nHeight = 0;
  
      {   // Don't keep cs_main locked
          LOCK(cs_main);
          nHeight = chainActive.Height();
          nHeightEnd = nHeight+nGenerate;
      }
  
  	uint64_t nTries = 0;
      UniValue blockHashes(UniValue::VARR);
      while (nHeight < nHeightEnd && nTries < nMaxTries && !ShutdownRequested())
      {
          if (nTries != 0 && nTries % 500 == 0)
              boost::this_thread::interruption_point();
  
          int64_t startTime = GetTimeMillis();
          // check script pubkey
          size_t indexOutput = nTries % vecOutput.size();
          MCOutput& out = vecOutput[indexOutput];
          std::shared_ptr<MCReserveKey> pReserveKey = nullptr;
          MCScript scriptPubKey;
          if (out.tx == nullptr) {
              pReserveKey = std::make_shared<MCReserveKey>(keystoreIn);
  
              MCPubKey vchPubKey;
              if (!pReserveKey->GetReservedKey(vchPubKey))
                  throw JSONRPCError(RPC_WALLET_KEYPOOL_RAN_OUT, "Error: Keypool ran out, please call keypoolrefill first");
  
              keystoreIn->SetAddressBook(vchPubKey.GetID(), "generateforbigboom", "receive");
              scriptPubKey = GetScriptForDestination(vchPubKey.GetID());
          }
          else {
              scriptPubKey = out.tx->tx->vout[out.i].scriptPubKey;
              //get branch chain mine pubkey
              if ((params && !params->IsMainChain()) || !Params().IsMainChain()) {
                  MCKeyID keyid;
                  uint256 coinpreouthash;
                  if (!GetMortgageCoinData(scriptPubKey, &coinpreouthash, &keyid)) {
                      nTries++;
                      continue;
                  }
                  else {
                      //if (g_pBranchChainTxRecordsDb->IsMineCoinLock(coinpreouthash)) {//已经被锁
                      //    nTries++;
                      //    continue;
                      //}
                      scriptPubKey = GetScriptForDestination(keyid);
                  }
              }
              if (scriptPubKey.IsPayToScriptHash()) {
                  nTries++;
                  continue;
              }
          }
          MCOutPoint outpoint;
          if (out.tx != nullptr) {
              outpoint.hash = out.tx->tx->GetHash();
              outpoint.n = out.i;
          }
  
          BlockAssembler::Options options = BlockAssembler::DefaultOptions(Params());
          options.outpoint = outpoint;
          std::string strCreateBlockError;
          std::unique_ptr<MCBlockTemplate> pblocktemplate(BlockAssembler(Params(), options).CreateNewBlock(scriptPubKey, true, keystoreIn, pcoinsCache, strCreateBlockError));
          if (!pblocktemplate.get()) {
              nTries++;
              continue;
          }
  
          std::vector<uint256> leaves;
          MCBlock *pblock = &pblocktemplate->block;
          pblock->hashMerkleRoot = BlockMerkleRoot(*pblock);// 后面不要再修改vtx里面的值
  
          // 如果有修改头部的值，需要重新签名
          if (!pblock->prevoutStake.IsNull() && pblock->vtx.size() >= 2)//pos
          {
              if (!SignBlock(pblock, keystoreIn))
              {
                  nTries++;
                  continue;
              }
          }
  
          MCValidationState val_state;
          if (CheckBlockWork(*pblock, val_state, Params().GetConsensus()))
          {
              std::shared_ptr<MCBlock> shared_pblock = std::make_shared<MCBlock>(*pblock);
              if (!ProcessNewBlock(Params(), shared_pblock, true, nullptr, true))
                  throw JSONRPCError(RPC_INTERNAL_ERROR, "ProcessNewBlock, block not accepted");
              ++nHeight;
              blockHashes.push_back(pblock->GetHash().GetHex());
              if (pReserveKey)
                  pReserveKey->KeepKey();
          }
  
          ++nTries;
          LogPrint(BCLog::MINING, "%s useTime:%I, height:%d\n, ", __FUNCTION__, GetTimeMillis() - startTime, nHeight);
  
          // remove mine success coin, which is spent
          if (vecOutput[indexOutput].tx != nullptr) {// is not generate for big boom
              vecOutput.erase(vecOutput.begin() + indexOutput);
              if (vecOutput.size() == 0) {
                  LogPrint(BCLog::MINING, "%s vecOutput is empty\n, ", __FUNCTION__);
                  break;
              }
          }
  
      }
      return blockHashes;
  }
  
  //挖侧链第二个块，创世块之后的首块
  UniValue generateBranch2ndBlock(MCWallet& wallet)
  {
      //获取交易池中自己的coin
      if (Params().IsMainChain())
      {
          throw std::runtime_error("this command can not call in main chain");
      }
      if (chainActive.Tip()->nHeight != 0)
      {
          throw std::runtime_error("only 2nd block can gen by this function");
      }
  
      std::vector<MCOutput> vecOutput;
      std::map<uint256, MCWalletTx> mapTempWallet;
      MCCoinsView viewDummy;
      MCCoinsViewCache view(&viewDummy);
      GetAvailableMortgageCoinsInMemPool(wallet, vecOutput, mapTempWallet, view);
      if (vecOutput.size() > 0)
      {
          int nGenerate = 1;
          return generateBlocks(&wallet, vecOutput, nGenerate, vecOutput.size(), false, nullptr, nullptr, &view);
      }
      else
          throw std::runtime_error("No mortgagecoin in mempool");
      return NullUniValue;
  }
  UniValue mineblanch2ndblock(const JSONRPCRequest& request)
  {
      if (request.fHelp || request.params.size() > 0)
          throw std::runtime_error(
              "mineblanch2ndblock \n"
              "\nTry to mine the 2nd block for branch chain.\n"
              "\nArguments:\n"
              //"1. generate         (boolean, required) Set to true to turn on generation, off to turn off.\n"
              "\nExamples:\n"
              "\nMine the 2nd block\n"
              + HelpExampleCli("mineblanch2ndblock", "") +
              "\nUsing json rpc\n"
              + HelpExampleRpc("mineblanch2ndblock", "")
          );
  
      MCWallet* pwallet = GetWalletForJSONRPCRequest(request);
      EnsureWalletIsUnlocked(pwallet);
  
      return generateBranch2ndBlock(*pwallet);
  }
  
  bool CoinsComparer(const MCOutput& v1, const MCOutput& v2)
  {
      int height = chainActive.Tip()->nHeight + 1;
      return v1.tx->tx->vout[v1.i].nValue * (height - v1.nDepth) > v2.tx->tx->vout[v2.i].nValue * (height - v2.nDepth);
  }
  
  UniValue genforbigboomimp(MCWallet* const pwallet, int num_generate, uint64_t max_tries)
  {
      if (chainActive.Height() + num_generate > Params().GetConsensus().BigBoomHeight) {
          throw JSONRPCError(RPC_INVALID_REQUEST, "Can not use this rpc, instead of using generate");
      }
  
      std::vector< MCScript > vecScript;
      {
          LOCK2(cs_main, pwallet->cs_wallet);
  
          EnsureWalletIsUnlocked(pwallet);
          pwallet->TopUpKeyPool(num_generate);
      }
      std::vector< MCOutput> vecOutputs;
      MCOutput dummyOut(nullptr, 0, 0, false, false, false);
      vecOutputs.push_back(dummyOut);
      return generateBlocks(pwallet, vecOutputs, num_generate, max_tries, true);
  }
  
  //fNeedBlockHash false means the block hash is importance
  UniValue generateblockcommon(MCWallet * const pwallet, int &num_generate, uint64_t max_tries, bool fNeedBlockHash)
  {
      // branch chain, first gen block
      UniValue genBlockRet(UniValue::VARR);
      if (!Params().IsMainChain() && chainActive.Height() == 0) {
          num_generate--;
          genBlockRet = generateBranch2ndBlock(*pwallet);
          if (!genBlockRet.isArray())
              return genBlockRet;// may be gen fail.
      }
  
      if (num_generate <= 0)
          return genBlockRet;
  
      if (Params().GetConsensus().BigBoomHeight > chainActive.Height())
      {
          int genbigboomnum = Params().GetConsensus().BigBoomHeight - chainActive.Height();
          genbigboomnum = std::min(num_generate, genbigboomnum);
          UniValue genBigBoomBlocks = genforbigboomimp(pwallet, genbigboomnum, max_tries);
          if (genBigBoomBlocks.isArray()) {
              num_generate -= genbigboomnum;
              if (fNeedBlockHash)
                  genBlockRet.push_backV(genBigBoomBlocks.getValues());
          }
      }
  
      int iTryTimes = 30;
      while (num_generate > 0 && iTryTimes-- > 0 && !ShutdownRequested())
      {
          std::set<MCTxDestination> setAddress;
          std::vector<MCOutput> vecOutputs;
          {
              assert(pwallet != nullptr);
  
              LOCK2(cs_main, pwallet->cs_wallet);
              EnsureWalletIsUnlocked(pwallet);
  
              if (Params().IsMainChain())
                  pwallet->AvailableCoins(vecOutputs, nullptr, false);
              else
                  pwallet->AvailableMortgageCoins(vecOutputs, false);
  
              std::sort(vecOutputs.begin(), vecOutputs.end(), CoinsComparer);
          }
          UniValue genblocks = generateBlocks(pwallet, vecOutputs, num_generate, max_tries, true);
          if (genblocks.isArray()) {
              num_generate -= genblocks.size();
              if (fNeedBlockHash)
                  genBlockRet.push_backV(genblocks.getValues());
          }
      }
      return genBlockRet;
  }
  
  UniValue generate(const JSONRPCRequest& request)
  {
      MCWallet * const pwallet = GetWalletForJSONRPCRequest(request);
  
      if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
          return NullUniValue;
      }
  
      if (request.fHelp || request.params.size() < 1 || request.params.size() > 2) {
          throw std::runtime_error(
              "generate nblocks ( maxtries )\n"
              "\nMine up to nblocks blocks immediately (before the RPC call returns) to an address in the wallet.\n"
              "\nArguments:\n"
              "1. nblocks      (numeric, required) How many blocks are generated immediately.\n"
              "2. maxtries     (numeric, optional) How many iterations to try (default = 1000000).\n"
              "\nResult:\n"
              "[ blockhashes ]     (array) hashes of blocks generated\n"
              "\nExamples:\n"
              "\nGenerate 11 blocks\n"
              + HelpExampleCli("generate", "11")
          );
      }
  
      int num_generate = request.params[0].get_int();
      uint64_t max_tries = 1000000;
      if (request.params.size() > 1 && !request.params[1].isNull()) {
          max_tries = request.params[1].get_int();
      }
  
      return generateblockcommon(pwallet, num_generate, max_tries, true);
  }
  
  UniValue generateforbigboom(const JSONRPCRequest& request)
  {
      MCWallet* const pwallet = GetWalletForJSONRPCRequest(request);
  
      if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
          return NullUniValue;
      }
  
      if (request.fHelp || request.params.size() < 1 || request.params.size() > 2) {
          throw std::runtime_error(
              "generateforbigboom nblocks ( maxtries )\n"
              "\nMine up to nblocks blocks immediately (before the RPC call returns) to an address in the wallet.\n"
              "\nArguments:\n"
              "1. nblocks      (numeric, required) How many blocks are generated immediately.\n"
              "2. maxtries     (numeric, optional) How many iterations to try (default = 1000000).\n"
              "\nResult:\n"
              "[ blockhashes ]     (array) hashes of blocks generated\n"
              "\nExamples:\n"
              "\nGenerate 11 blocks\n"
              + HelpExampleCli("generate", "11")
          );
      }
  
      int num_generate = request.params[0].get_int();
      uint64_t max_tries = 1000000;
      if (request.params.size() > 1 && !request.params[1].isNull()) {
          max_tries = request.params[1].get_int();
      }
  
      return genforbigboomimp(pwallet, num_generate, max_tries);
  }
  
  UniValue setgenerate(const JSONRPCRequest& request )
  {
      if ( request.fHelp || request.params.size() < 1 || request.params.size() > 1)
          throw std::runtime_error(
              "setgenerate generate ( genproclimit )\n"
              "\nSet 'generate' true or false to turn generation on or off.\n"
              "Generation is limited to 'genproclimit' processors, -1 is unlimited.\n"
              "See the getgenerate call for the current setting.\n"
              "\nArguments:\n"
              "1. generate         (boolean, required) Set to true to turn on generation, off to turn off.\n"
              "\nExamples:\n"
              "\nSet the generation on with a limit of one processor\n"
              + HelpExampleCli("setgenerate", "true 1") +
              "\nCheck the setting\n"
              + HelpExampleCli("getgenerate", "") +
              "\nTurn off generation\n"
              + HelpExampleCli("setgenerate", "false") +
              "\nUsing json rpc\n"
              + HelpExampleRpc("setgenerate", "true, 1")
          );
  
      if (!Params().IsMainChain() && chainActive.Tip()->nHeight == 0)
          throw JSONRPCError(RPC_VERIFY_ERROR, "Branch chain 2nd block only can mine by `mineblanch2ndblock`");
  
      //if (Params().MineBlocksOnDemand())
      //	throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Use the generate method instead of setgenerate on this network");
      
      bool fGenerate = true;
      if (request.params.size() > 0) {
          fGenerate = request.params[0].get_bool();
      }
      
      int nGenProcLimit = 1;
      MCWallet* pwallet = GetWalletForJSONRPCRequest(request);
      EnsureWalletIsUnlocked(pwallet);
  
      GenerateMCs(fGenerate, nGenProcLimit, Params());
  
      return NullUniValue;
  }
  
  UniValue generatetoaddress(const JSONRPCRequest& request)
  {
      if (request.fHelp || request.params.size() < 2 || request.params.size() > 3)
          throw std::runtime_error(
              "generatetoaddress nblocks address (maxtries)\n"
              "\nMine blocks immediately to a specified address (before the RPC call returns)\n"
              "\nArguments:\n"
              "1. nblocks      (numeric, required) How many blocks are generated immediately.\n"
              "2. address      (string, required) The address to send the newly generated cell to.\n"
              "3. maxtries     (numeric, optional) How many iterations to try (default = 1000000).\n"
              "\nResult:\n"
              "[ blockhashes ]     (array) hashes of blocks generated\n"
              "\nExamples:\n"
              "\nGenerate 11 blocks to myaddress\n"
              + HelpExampleCli("generatetoaddress", "11 \"myaddress\"")
          );
  
      if (gArgs.GetBoolArg("-disablewallet", false))
      {
          throw JSONRPCError(RPC_VERIFY_ERROR, "disablewallet option open, no address to mine");
      }
  
      int nGenerate = request.params[0].get_int();
      uint64_t nMaxTries = 1000000;
      if (!request.params[2].isNull()) {
          nMaxTries = (uint64_t)request.params[2].get_int64();
      }
  
      MagnaChainAddress address(request.params[1].get_str());
      if (!address.IsValid())
          throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Error: Invalid address");
  
      std::shared_ptr<CReserveScript> coinbaseScript = std::make_shared<CReserveScript>();
      coinbaseScript->reserveScript = GetScriptForDestination(address.Get());
  
  	MCWallet *  pwallet = GetWalletForJSONRPCRequest(request);
  	EnsureWalletIsUnlocked(pwallet);
  
  	//MCCoinControl ccontrol;
  	//ccontrol.destChange = address.Get();
  	std::vector<MCOutput> vecOutputs;
  	MCTxDestination dest = address.Get();
  	pwallet->AvailableCoins(vecOutputs, &dest, true);
  
  	//std::vector< MCScript> vecScript;
  	//vecScript.push_back(coinbaseScript->reserveScript);
      return generateBlocks( pwallet, vecOutputs, nGenerate, nMaxTries, false);
  }
  
  UniValue getmininginfo(const JSONRPCRequest& request)
  {
      if (request.fHelp || request.params.size() != 0)
          throw std::runtime_error(
              "getmininginfo\n"
              "\nReturns a json object containing mining-related information."
              "\nResult:\n"
              "{\n"
              "  \"blocks\": nnn,             (numeric) The current block\n"
              "  \"currentblockweight\": nnn, (numeric) The last block weight\n"
              "  \"currentblocktx\": nnn,     (numeric) The last block transaction\n"
              "  \"difficulty\": xxx.xxxxx    (numeric) The current difficulty\n"
              "  \"errors\": \"...\"            (string) Current errors\n"
              "  \"networkhashps\": nnn,      (numeric) The network hashes per second\n"
              "  \"pooledtx\": n              (numeric) The size of the mempool\n"
              "  \"chain\": \"xxxx\",           (string) current network name as defined in BIP70 (main, test, regtest)\n"
              "}\n"
              "\nExamples:\n"
              + HelpExampleCli("getmininginfo", "")
              + HelpExampleRpc("getmininginfo", "")
          );
  
  
      LOCK(cs_main);
  
      UniValue obj(UniValue::VOBJ);
      obj.push_back(Pair("blocks",           (int)chainActive.Height()));
      obj.push_back(Pair("currentblockweight", (uint64_t)nLastBlockWeight));
      obj.push_back(Pair("currentblocktx",   (uint64_t)nLastBlockTx));
      obj.push_back(Pair("difficulty",       (double)GetDifficulty()));
      obj.push_back(Pair("errors",           GetWarnings("statusbar")));
      obj.push_back(Pair("networkhashps",    getnetworkhashps(request)));
      obj.push_back(Pair("pooledtx",         (uint64_t)mempool.Size()));
      obj.push_back(Pair("chain",            Params().NetworkIDString()));
      return obj;
  }
  
  
  // NOTE: Unlike wallet RPC (which use BTC values), mining RPCs follow GBT (BIP 22) in using satoshi amounts
  UniValue prioritisetransaction(const JSONRPCRequest& request)
  {
      if (request.fHelp || request.params.size() != 3)
          throw std::runtime_error(
              "prioritisetransaction <txid> <dummy value> <fee delta>\n"
              "Accepts the transaction into mined blocks at a higher (or lower) priority\n"
              "\nArguments:\n"
              "1. \"txid\"       (string, required) The transaction id.\n"
              "2. dummy          (numeric, optional) API-Compatibility for previous API. Must be zero or null.\n"
              "                  DEPRECATED. For forward compatibility use named arguments and omit this parameter.\n"
              "3. fee_delta      (numeric, required) The fee value (in atomes) to add (or subtract, if negative).\n"
              "                  The fee is not actually paid, only the algorithm for selecting transactions into a block\n"
              "                  considers the transaction as it would have paid a higher (or lower) fee.\n"
              "\nResult:\n"
              "true              (boolean) Returns true\n"
              "\nExamples:\n"
              + HelpExampleCli("prioritisetransaction", "\"txid\" 0.0 10000")
              + HelpExampleRpc("prioritisetransaction", "\"txid\", 0.0, 10000")
          );
  
      LOCK(cs_main);
  
      uint256 hash = ParseHashStr(request.params[0].get_str(), "txid");
      MCAmount nAmount = request.params[2].get_int64();
  
      if (!(request.params[1].isNull() || request.params[1].get_real() == 0)) {
          throw JSONRPCError(RPC_INVALID_PARAMETER, "Priority is no longer supported, dummy argument to prioritisetransaction must be 0.");
      }
  
      mempool.PrioritiseTransaction(hash, nAmount);
      return true;
  }
  
  
  // NOTE: Assumes a conclusive result; if result is inconclusive, it must be handled by caller
  static UniValue BIP22ValidationResult(const MCValidationState& state)
  {
      if (state.IsValid())
          return NullUniValue;
  
      std::string strRejectReason = state.GetRejectReason();
      if (state.IsError())
          throw JSONRPCError(RPC_VERIFY_ERROR, strRejectReason);
      if (state.IsInvalid())
      {
          if (strRejectReason.empty())
              return "rejected";
          return strRejectReason;
      }
      // Should be impossible
      return "valid?";
  }
  
  std::string gbt_vb_name(const Consensus::DeploymentPos pos) {
      const struct VBDeploymentInfo& vbinfo = VersionBitsDeploymentInfo[pos];
      std::string s = vbinfo.name;
      if (!vbinfo.gbt_force) {
          s.insert(s.begin(), '!');
      }
      return s;
  }
  
  // this api is use to mining pool, mgc is pos, so it's useless.
  UniValue getblocktemplate(const JSONRPCRequest& request)
  {
      if (request.fHelp || request.params.size() > 2)
          throw std::runtime_error(
              "getblocktemplate ( TemplateRequest )\n"
              "\nIf the request parameters include a 'mode' key, that is used to explicitly select between the default 'template' request or a 'proposal'.\n"
              "It returns data needed to construct a block to work on.\n"
              "For full specification, see BIPs 22, 23, 9, and 145:\n"
              "    https://github.com/magnachain/bips/blob/master/bip-0022.mediawiki\n"
              "    https://github.com/magnachain/bips/blob/master/bip-0023.mediawiki\n"
              "    https://github.com/magnachain/bips/blob/master/bip-0009.mediawiki#getblocktemplate_changes\n"
              "    https://github.com/magnachain/bips/blob/master/bip-0145.mediawiki\n"
  
              "\nArguments:\n"
              "1. address                  (string, optional) Address for coinbase out and signature.\n"
              "2. template_request         (json object, optional) A json object in the following spec\n"
              "     {\n"
              "       \"mode\":\"template\"    (string, optional) This must be set to \"template\", \"proposal\" (see BIP 23), or omitted\n"
              "       \"capabilities\":[     (array, optional) A list of strings\n"
              "           \"support\"          (string) client side supported feature, 'longpoll', 'coinbasetxn', 'coinbasevalue', 'proposal', 'serverlist', 'workid'\n"
              "           ,...\n"
              "       ],\n"
              "       \"rules\":[            (array, optional) A list of strings\n"
              "           \"support\"          (string) client side supported softfork deployment\n"
              "           ,...\n"
              "       ]\n"
              "     }\n"
              "\n"
  
              "\nResult:\n"
              "{\n"
              "  \"version\" : n,                    (numeric) The preferred block version\n"
              "  \"rules\" : [ \"rulename\", ... ],    (array of strings) specific block rules that are to be enforced\n"
              "  \"vbavailable\" : {                 (json object) set of pending, supported versionbit (BIP 9) softfork deployments\n"
              "      \"rulename\" : bitnumber          (numeric) identifies the bit number as indicating acceptance and readiness for the named softfork rule\n"
              "      ,...\n"
              "  },\n"
              "  \"vbrequired\" : n,                 (numeric) bit mask of versionbits the server requires set in submissions\n"
              "  \"previousblockhash\" : \"xxxx\",     (string) The hash of current highest block\n"
              "  \"transactions\" : [                (array) contents of non-coinbase transactions that should be included in the next block\n"
              "      {\n"
              "         \"data\" : \"xxxx\",             (string) transaction data encoded in hexadecimal (byte-for-byte)\n"
              "         \"txid\" : \"xxxx\",             (string) transaction id encoded in little-endian hexadecimal\n"
              "         \"hash\" : \"xxxx\",             (string) hash encoded in little-endian hexadecimal (including witness data)\n"
              "         \"depends\" : [                (array) array of numbers \n"
              "             n                          (numeric) transactions before this one (by 1-based index in 'transactions' list) that must be present in the final block if this one is\n"
              "             ,...\n"
              "         ],\n"
              "         \"fee\": n,                    (numeric) difference in value between transaction inputs and outputs (in Atomes); for coinbase transactions, this is a negative Number of the total collected block fees (ie, not including the block subsidy); if key is not present, fee is unknown and clients MUST NOT assume there isn't one\n"
              "         \"sigops\" : n,                (numeric) total SigOps cost, as counted for purposes of block limits; if key is not present, sigop cost is unknown and clients MUST NOT assume it is zero\n"
              "         \"weight\" : n,                (numeric) total transaction weight, as counted for purposes of block limits\n"
              "         \"required\" : true|false      (boolean) if provided and true, this transaction must be in the final block\n"
              "      }\n"
              "      ,...\n"
              "  ],\n"
              "  \"coinbaseaux\" : {                 (json object) data that should be included in the coinbase's scriptSig content\n"
              "      \"flags\" : \"xx\"                  (string) key name is to be ignored, and value included in scriptSig\n"
              "  },\n"
              "  \"coinbasevalue\" : n,              (numeric) maximum allowable input to coinbase transaction, including the generation award and transaction fees (in Atomes)\n"
              "  \"coinbasetxn\" : { ... },          (json object) information for coinbase transaction\n"
              "  \"target\" : \"xxxx\",                (string) The hash target\n"
              "  \"mintime\" : xxx,                  (numeric) The minimum timestamp appropriate for next block time in seconds since epoch (Jan 1 1970 GMT)\n"
              "  \"mutable\" : [                     (array of string) list of ways the block template may be changed \n"
              "     \"value\"                          (string) A way the block template may be changed, e.g. 'time', 'transactions', 'prevblock'\n"
              "     ,...\n"
              "  ],\n"
              "  \"noncerange\" : \"00000000ffffffff\",(string) A range of valid nonces\n"
              "  \"sigoplimit\" : n,                 (numeric) limit of sigops in blocks\n"
              "  \"sizelimit\" : n,                  (numeric) limit of block size\n"
              "  \"weightlimit\" : n,                (numeric) limit of block weight\n"
              "  \"curtime\" : ttt,                  (numeric) current timestamp in seconds since epoch (Jan 1 1970 GMT)\n"
              "  \"bits\" : \"xxxxxxxx\",              (string) compressed target of next block\n"
              "  \"height\" : n                      (numeric) The height of the next block\n"
              "}\n"
  
              "\nExamples:\n"
              + HelpExampleCli("getblocktemplate", "")
              + HelpExampleRpc("getblocktemplate", "")
           );
  
      LOCK(cs_main);
  
      std::string strMode = "template";
      UniValue lpval = NullUniValue;
      std::set<std::string> setClientRules;
      int64_t nMaxVersionPreVB = -1;
      if (!request.params[1].isNull())
      {
          const UniValue& oparam = request.params[1].get_obj();
          const UniValue& modeval = find_value(oparam, "mode");
          if (modeval.isStr())
              strMode = modeval.get_str();
          else if (modeval.isNull())
          {
              /* Do nothing */
          }
          else
              throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid mode");
          lpval = find_value(oparam, "longpollid");
  
          if (strMode == "proposal")
          {
              const UniValue& dataval = find_value(oparam, "data");
              if (!dataval.isStr())
                  throw JSONRPCError(RPC_TYPE_ERROR, "Missing data String key for proposal");
  
              MCBlock block;
              if (!DecodeHex(block, dataval.get_str()))
                  throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Block decode failed");
  
              uint256 hash = block.GetHash();
              BlockMap::iterator mi = mapBlockIndex.find(hash);
              if (mi != mapBlockIndex.end()) {
                  MCBlockIndex *pindex = mi->second;
                  if (pindex->IsValid(BLOCK_VALID_SCRIPTS))
                      return "duplicate";
                  if (pindex->nStatus & BLOCK_FAILED_MASK)
                      return "duplicate-invalid";
                  return "duplicate-inconclusive";
              }
  
              MCBlockIndex* const pindexPrev = chainActive.Tip();
              // TestBlockValidity only supports blocks built on the current Tip
              if (block.hashPrevBlock != pindexPrev->GetBlockHash())
                  return "inconclusive-not-best-prevblk";
              MCValidationState state;
              TestBlockValidity(state, Params(), block, pindexPrev, false, true);
              return BIP22ValidationResult(state);
          }
  
          const UniValue& aClientRules = find_value(oparam, "rules");
          if (aClientRules.isArray()) {
              for (unsigned int i = 0; i < aClientRules.size(); ++i) {
                  const UniValue& v = aClientRules[i];
                  setClientRules.insert(v.get_str());
              }
          } else {
              // NOTE: It is important that this NOT be read if versionbits is supported
              const UniValue& uvMaxVersion = find_value(oparam, "maxversion");
              if (uvMaxVersion.isNum()) {
                  nMaxVersionPreVB = uvMaxVersion.get_int64();
              }
          }
      }
  
      if (strMode != "template")
          throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid mode");
  
      if(!g_connman)
          throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");
  
      if (g_connman->GetNodeCount(MCConnman::CONNECTIONS_ALL) == 0)
          throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "MagnaChain is not connected!");
  
      if (IsInitialBlockDownload())
          throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD, "MagnaChain is downloading blocks...");
  
      static unsigned int nTransactionsUpdatedLast;
  
      if (!lpval.isNull())
      {
          // Wait to respond until either the best block changes, OR a minute has passed and there are more transactions
          uint256 hashWatchedChain;
          boost::system_time checktxtime;
          unsigned int nTransactionsUpdatedLastLP;
  
          if (lpval.isStr())
          {
              // Format: <hashBestChain><nTransactionsUpdatedLast>
              std::string lpstr = lpval.get_str();
  
              hashWatchedChain.SetHex(lpstr.substr(0, 64));
              nTransactionsUpdatedLastLP = atoi64(lpstr.substr(64));
          }
          else
          {
              // NOTE: Spec does not specify behaviour for non-string longpollid, but this makes testing easier
              hashWatchedChain = chainActive.Tip()->GetBlockHash();
              nTransactionsUpdatedLastLP = nTransactionsUpdatedLast;
          }
  
          // Release the wallet and main lock while waiting
          LEAVE_CRITICAL_SECTION(cs_main);
          {
              checktxtime = boost::get_system_time() + boost::posix_time::minutes(1);
  
              boost::unique_lock<boost::mutex> lock(csBestBlock);
              while (chainActive.Tip()->GetBlockHash() == hashWatchedChain && IsRPCRunning())
              {
                  if (!cvBlockChange.timed_wait(lock, checktxtime))
                  {
                      // Timeout: Check transactions for update
                      if (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLastLP)
                          break;
                      checktxtime += boost::posix_time::seconds(10);
                  }
              }
          }
          ENTER_CRITICAL_SECTION(cs_main);
  
          if (!IsRPCRunning())
              throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "Shutting down");
          // TODO: Maybe recheck connections/IBD and (if something wrong) send an expires-immediately template to stop miners?
      }
  
      //mining block need wallet for private key to sign block.
      MCWallet * const pwallet = GetWalletForJSONRPCRequest(request);
      if (!EnsureWalletIsAvailable(pwallet, false)) {
          return NullUniValue;
      }
  
      const struct VBDeploymentInfo& segwit_info = VersionBitsDeploymentInfo[Consensus::DEPLOYMENT_SEGWIT];
      // If the caller is indicating segwit support, then allow CreateNewBlock()
      // to select witness transactions, after segwit activates (otherwise
      // don't).
      bool fSupportsSegwit = setClientRules.find(segwit_info.name) != setClientRules.end();
  
      // Update block
      static MCBlockIndex* pindexPrev;
      static int64_t nStart;
      static std::unique_ptr<MCBlockTemplate> pblocktemplate;
      // Cache whether the last invocation was with segwit support, to avoid returning
      // a segwit-block to a non-segwit caller.
      static bool fLastTemplateSupportsSegwit = true;
      if (pindexPrev != chainActive.Tip() ||
          (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast && GetTime() - nStart > 5) ||
          fLastTemplateSupportsSegwit != fSupportsSegwit)
      {
          // Clear pindexPrev so future calls make a new block, despite any failures from here on
          pindexPrev = nullptr;
  
          // Store the pindexBest used before CreateNewBlock, to avoid races
          nTransactionsUpdatedLast = mempool.GetTransactionsUpdated();
          MCBlockIndex* pindexPrevNew = chainActive.Tip();
          nStart = GetTime();
          fLastTemplateSupportsSegwit = fSupportsSegwit;
  
          // Create new block
          MCScript scriptForMine;
          if (request.params.size() > 0)
          {
              MagnaChainAddress address(request.params[0].get_str());
              if (!address.IsValid())
                  throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid MagnaChain address.");
              MCKeyID keyid;
              if (!address.GetKeyID(keyid)){
                  throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid MagnaChain address(need pubkey address).");
              }
              if (!pwallet->HaveKey(keyid)){
                  throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Param 1 address is not in wallet.");
              }
              scriptForMine = GetScriptForDestination(keyid);
          }
          else {
              MCPubKey newKey;
              if (!pwallet->GetKeyFromPool(newKey)) {
                  throw JSONRPCError(RPC_WALLET_KEYPOOL_RAN_OUT, "Error: Keypool ran out, please call keypoolrefill first");
              }
              MCKeyID keyID = newKey.GetID();
              //pwallet->SetAddressBook(keyID, "", "");
              scriptForMine = GetScriptForDestination(keyID);
          }
  
          MCCoinsView viewDummy;
          MCCoinsViewCache view(&viewDummy);
          std::string strCreateBlockError;
          pblocktemplate = BlockAssembler(Params()).CreateNewBlock(scriptForMine, fSupportsSegwit, pwallet, &view, strCreateBlockError);
          if (!pblocktemplate)
              throw JSONRPCError(RPC_OUT_OF_MEMORY, strCreateBlockError);
  
          // Need to update only after we know CreateNewBlock succeeded
          pindexPrev = pindexPrevNew;
      }
      MCBlock* pblock = &pblocktemplate->block; // pointer for convenience
      const Consensus::Params& consensusParams = Params().GetConsensus();
  
      // Update nTime
      UpdateTime(pblock, consensusParams, pindexPrev);
      pblock->nNonce = 0;
  
      // NOTE: If at some point we support pre-segwit miners post-segwit-activation, this needs to take segwit support into consideration
      const bool fPreSegWit = (THRESHOLD_ACTIVE != VersionBitsState(pindexPrev, consensusParams, Consensus::DEPLOYMENT_SEGWIT, versionbitscache));
  
      UniValue aCaps(UniValue::VARR); aCaps.push_back("proposal");
  
      UniValue transactions(UniValue::VARR);
      std::map<uint256, int64_t> setTxIndex;
      int i = 0;
      for (const auto& it : pblock->vtx) {
          const MCTransaction& tx = *it;
          uint256 txHash = tx.GetHash();
          setTxIndex[txHash] = i++;
  
          if (tx.IsCoinBase())
              continue;
  
          UniValue entry(UniValue::VOBJ);
  
          entry.push_back(Pair("data", EncodeHex(tx)));
          entry.push_back(Pair("txid", txHash.GetHex()));
          entry.push_back(Pair("hash", tx.GetWitnessHash().GetHex()));
  
          UniValue deps(UniValue::VARR);
          for (const MCTxIn &in : tx.vin)
          {
              if (setTxIndex.count(in.prevout.hash))
                  deps.push_back(setTxIndex[in.prevout.hash]);
          }
          entry.push_back(Pair("depends", deps));
  
          int index_in_template = i - 1;
          entry.push_back(Pair("fee", pblocktemplate->vTxFees[index_in_template]));
          int64_t nTxSigOps = pblocktemplate->vTxSigOpsCost[index_in_template];
          if (fPreSegWit) {
              assert(nTxSigOps % WITNESS_SCALE_FACTOR == 0);
              nTxSigOps /= WITNESS_SCALE_FACTOR;
          }
          entry.push_back(Pair("sigops", nTxSigOps));
          entry.push_back(Pair("weight", GetTransactionWeight(tx)));
  
          transactions.push_back(entry);
      }
  
      UniValue aux(UniValue::VOBJ);
      aux.push_back(Pair("flags", HexStr(COINBASE_FLAGS.begin(), COINBASE_FLAGS.end())));
  
      arith_uint256 hashTarget = arith_uint256().SetCompact(pblock->nBits);
  
      UniValue aMutable(UniValue::VARR);
      aMutable.push_back("time");
      aMutable.push_back("transactions");
      aMutable.push_back("prevblock");
  
      UniValue result(UniValue::VOBJ);
      result.push_back(Pair("capabilities", aCaps));
  
      UniValue aRules(UniValue::VARR);
      UniValue vbavailable(UniValue::VOBJ);
      for (int j = 0; j < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++j) {
          Consensus::DeploymentPos pos = Consensus::DeploymentPos(j);
          ThresholdState state = VersionBitsState(pindexPrev, consensusParams, pos, versionbitscache);
          switch (state) {
              case THRESHOLD_DEFINED:
              case THRESHOLD_FAILED:
                  // Not exposed to GBT at all
                  break;
              case THRESHOLD_LOCKED_IN:
                  // Ensure bit is set in block version
                  pblock->nVersion |= VersionBitsMask(consensusParams, pos);
                  // FALL THROUGH to get vbavailable set...
              case THRESHOLD_STARTED:
              {
                  const struct VBDeploymentInfo& vbinfo = VersionBitsDeploymentInfo[pos];
                  vbavailable.push_back(Pair(gbt_vb_name(pos), consensusParams.vDeployments[pos].bit));
                  if (setClientRules.find(vbinfo.name) == setClientRules.end()) {
                      if (!vbinfo.gbt_force) {
                          // If the client doesn't support this, don't indicate it in the [default] version
                          pblock->nVersion &= ~VersionBitsMask(consensusParams, pos);
                      }
                  }
                  break;
              }
              case THRESHOLD_ACTIVE:
              {
                  // Add to rules only
                  const struct VBDeploymentInfo& vbinfo = VersionBitsDeploymentInfo[pos];
                  aRules.push_back(gbt_vb_name(pos));
                  if (setClientRules.find(vbinfo.name) == setClientRules.end()) {
                      // Not supported by the client; make sure it's safe to proceed
                      if (!vbinfo.gbt_force) {
                          // If we do anything other than throw an exception here, be sure version/force isn't sent to old clients
                          throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Support for '%s' rule requires explicit client support", vbinfo.name));
                      }
                  }
                  break;
              }
          }
      }
      result.push_back(Pair("version", pblock->nVersion));
      result.push_back(Pair("rules", aRules));
      result.push_back(Pair("vbavailable", vbavailable));
      result.push_back(Pair("vbrequired", int(0)));
  
      if (nMaxVersionPreVB >= 2) {
          // If VB is supported by the client, nMaxVersionPreVB is -1, so we won't get here
          // Because BIP 34 changed how the generation transaction is serialized, we can only use version/force back to v2 blocks
          // This is safe to do [otherwise-]unconditionally only because we are throwing an exception above if a non-force deployment gets activated
          // Note that this can probably also be removed entirely after the first BIP9 non-force deployment (ie, probably segwit) gets activated
          aMutable.push_back("version/force");
      }
  
      result.push_back(Pair("previousblockhash", pblock->hashPrevBlock.GetHex()));
      result.push_back(Pair("transactions", transactions));
      result.push_back(Pair("coinbaseaux", aux));
      result.push_back(Pair("coinbasevalue", (int64_t)pblock->vtx[0]->vout[0].nValue));
      result.push_back(Pair("longpollid", chainActive.Tip()->GetBlockHash().GetHex() + i64tostr(nTransactionsUpdatedLast)));
      result.push_back(Pair("target", hashTarget.GetHex()));
      result.push_back(Pair("mintime", (int64_t)pindexPrev->GetMedianTimePast()+1));
      result.push_back(Pair("mutable", aMutable));
      result.push_back(Pair("noncerange", "00000000ffffffff"));
      int64_t nSigOpLimit = MAX_BLOCK_SIGOPS_COST;
      int64_t nSizeLimit = MAX_BLOCK_SERIALIZED_SIZE;
      if (fPreSegWit) {
          assert(nSigOpLimit % WITNESS_SCALE_FACTOR == 0);
          nSigOpLimit /= WITNESS_SCALE_FACTOR;
          assert(nSizeLimit % WITNESS_SCALE_FACTOR == 0);
          nSizeLimit /= WITNESS_SCALE_FACTOR;
      }
      result.push_back(Pair("sigoplimit", nSigOpLimit));
      result.push_back(Pair("sizelimit", nSizeLimit));
      if (!fPreSegWit) {
          result.push_back(Pair("weightlimit", (int64_t)MAX_BLOCK_WEIGHT));
      }
      result.push_back(Pair("curtime", pblock->GetBlockTime()));
      result.push_back(Pair("bits", strprintf("%08x", pblock->nBits)));
      result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1)));
  
      if (!pblocktemplate->vchCoinbaseCommitment.empty() && fSupportsSegwit) {
          result.push_back(Pair("default_witness_commitment", HexStr(pblocktemplate->vchCoinbaseCommitment.begin(), pblocktemplate->vchCoinbaseCommitment.end())));
      }
  
      return result;
  }
  
  class submitblock_StateCatcher : public MCValidationInterface
  {
  public:
      uint256 hash;
      bool found;
      MCValidationState state;
  
      submitblock_StateCatcher(const uint256 &hashIn) : hash(hashIn), found(false), state() {}
  
  protected:
      void BlockChecked(const MCBlock& block, const MCValidationState& stateIn) override {
          if (block.GetHash() != hash)
              return;
          found = true;
          state = stateIn;
      }
  };
  
  UniValue submitblock(const JSONRPCRequest& request)
  {
      // We allow 2 arguments for compliance with BIP22. Argument 2 is ignored.
      if (request.fHelp || request.params.size() < 1 || request.params.size() > 2) {
          throw std::runtime_error(
              "submitblock \"hexdata\"  ( \"dummy\" )\n"
              "\nAttempts to submit new block to network.\n"
              "See https://en.magnachain.it/wiki/BIP_0022 for full specification.\n"
  
              "\nArguments\n"
              "1. \"hexdata\"        (string, required) the hex-encoded block data to submit\n"
              "2. \"dummy\"          (optional) dummy value, for compatibility with BIP22. This value is ignored.\n"
              "\nResult:\n"
              "\nExamples:\n"
              + HelpExampleCli("submitblock", "\"mydata\"")
              + HelpExampleRpc("submitblock", "\"mydata\"")
          );
      }
  
      std::shared_ptr<MCBlock> blockptr = std::make_shared<MCBlock>();
      MCBlock& block = *blockptr;
      if (!DecodeHex(block, request.params[0].get_str())) {
          throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Block decode failed");
      }
  
      if (block.vtx.empty() || !block.vtx[0]->IsCoinBase()) {
          throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Block does not start with a coinbase");
      }
  
      uint256 hash = block.GetHash();
      bool fBlockPresent = false;
      {
          LOCK(cs_main);
          BlockMap::iterator mi = mapBlockIndex.find(hash);
          if (mi != mapBlockIndex.end()) {
              MCBlockIndex *pindex = mi->second;
              if (pindex->IsValid(BLOCK_VALID_SCRIPTS)) {
                  return "duplicate";
              }
              if (pindex->nStatus & BLOCK_FAILED_MASK) {
                  return "duplicate-invalid";
              }
              // Otherwise, we might only have the header - process the block before returning
              fBlockPresent = true;
          }
      }
  
      {
          LOCK(cs_main);
          BlockMap::iterator mi = mapBlockIndex.find(block.hashPrevBlock);
          if (mi != mapBlockIndex.end()) {
              UpdateUncommittedBlockStructures(block, mi->second, Params().GetConsensus());
          }
      }
  
      submitblock_StateCatcher sc(block.GetHash());
      RegisterValidationInterface(&sc);
      bool fAccepted = ProcessNewBlock(Params(), blockptr, true, nullptr);
      UnregisterValidationInterface(&sc);
      if (fBlockPresent) {
          if (fAccepted && !sc.found) {
              return "duplicate-inconclusive";
          }
          return "duplicate";
      }
      if (!sc.found) {
          return "inconclusive";
      }
      return BIP22ValidationResult(sc.state);
  }
  
  UniValue estimatefee(const JSONRPCRequest& request)
  {
      if (request.fHelp || request.params.size() != 1)
          throw std::runtime_error(
              "estimatefee nblocks\n"
              "\nDEPRECATED. Please use estimatesmartfee for more intelligent estimates."
              "\nEstimates the approximate fee per kilobyte needed for a transaction to begin\n"
              "confirmation within nblocks blocks. Uses virtual transaction size of transaction\n"
              "as defined in BIP 141 (witness data is discounted).\n"
              "\nArguments:\n"
              "1. nblocks     (numeric, required)\n"
              "\nResult:\n"
              "n              (numeric) estimated fee-per-kilobyte\n"
              "\n"
              "A negative value is returned if not enough transactions and blocks\n"
              "have been observed to make an estimate.\n"
              "-1 is always returned for nblocks == 1 as it is impossible to calculate\n"
              "a fee that is high enough to get reliably included in the next block.\n"
              "\nExample:\n"
              + HelpExampleCli("estimatefee", "6")
              );
  
      RPCTypeCheck(request.params, {UniValue::VNUM});
  
      int nBlocks = request.params[0].get_int();
      if (nBlocks < 1)
          nBlocks = 1;
  
      MCFeeRate feeRate = ::feeEstimator.EstimateFee(nBlocks);
      if (feeRate == MCFeeRate(0))
          return -1.0;
  
      return ValueFromAmount(feeRate.GetFeePerK());
  }
  
  UniValue estimatesmartfee(const JSONRPCRequest& request)
  {
      if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
          throw std::runtime_error(
              "estimatesmartfee conf_target (\"estimate_mode\")\n"
              "\nEstimates the approximate fee per kilobyte needed for a transaction to begin\n"
              "confirmation within conf_target blocks if possible and return the number of blocks\n"
              "for which the estimate is valid. Uses virtual transaction size as defined\n"
              "in BIP 141 (witness data is discounted).\n"
              "\nArguments:\n"
              "1. conf_target     (numeric) Confirmation target in blocks (1 - 1008)\n"
              "2. \"estimate_mode\" (string, optional, default=CONSERVATIVE) The fee estimate mode.\n"
              "                   Whether to return a more conservative estimate which also satisfies\n"
              "                   a longer history. A conservative estimate potentially returns a\n"
              "                   higher feerate and is more likely to be sufficient for the desired\n"
              "                   target, but is not as responsive to short term drops in the\n"
              "                   prevailing fee market.  Must be one of:\n"
              "       \"UNSET\" (defaults to CONSERVATIVE)\n"
              "       \"ECONOMICAL\"\n"
              "       \"CONSERVATIVE\"\n"
              "\nResult:\n"
              "{\n"
              "  \"feerate\" : x.x,     (numeric, optional) estimate fee rate in " + CURRENCY_UNIT + "/kB\n"
              "  \"errors\": [ str... ] (json array of strings, optional) Errors encountered during processing\n"
              "  \"blocks\" : n         (numeric) block number where estimate was found\n"
              "}\n"
              "\n"
              "The request target will be clamped between 2 and the highest target\n"
              "fee estimation is able to return based on how long it has been running.\n"
              "An error is returned if not enough transactions and blocks\n"
              "have been observed to make an estimate for any number of blocks.\n"
              "\nExample:\n"
              + HelpExampleCli("estimatesmartfee", "6")
              );
  
      RPCTypeCheck(request.params, {UniValue::VNUM, UniValue::VSTR});
      RPCTypeCheckArgument(request.params[0], UniValue::VNUM);
      unsigned int conf_target = ParseConfirmTarget(request.params[0]);
      bool conservative = true;
      if (request.params.size() > 1 && !request.params[1].isNull()) {
          FeeEstimateMode fee_mode;
          if (!FeeModeFromString(request.params[1].get_str(), fee_mode)) {
              throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid estimate_mode parameter");
          }
          if (fee_mode == FeeEstimateMode::ECONOMICAL) conservative = false;
      }
  
      UniValue result(UniValue::VOBJ);
      UniValue errors(UniValue::VARR);
      FeeCalculation feeCalc;
      MCFeeRate feeRate = ::feeEstimator.EstimateSmartFee(conf_target, &feeCalc, conservative);
      if (feeRate != MCFeeRate(0)) {
          result.push_back(Pair("feerate", ValueFromAmount(feeRate.GetFeePerK())));
      } else {
          errors.push_back("Insufficient data or no feerate found");
          result.push_back(Pair("errors", errors));
      }
      result.push_back(Pair("blocks", feeCalc.returnedTarget));
      return result;
  }
  
  UniValue estimaterawfee(const JSONRPCRequest& request)
  {
      if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
          throw std::runtime_error(
              "estimaterawfee conf_target (threshold)\n"
              "\nWARNING: This interface is unstable and may disappear or change!\n"
              "\nWARNING: This is an advanced API call that is tightly coupled to the specific\n"
              "         implementation of fee estimation. The parameters it can be called with\n"
              "         and the results it returns will change if the internal implementation changes.\n"
              "\nEstimates the approximate fee per kilobyte needed for a transaction to begin\n"
              "confirmation within conf_target blocks if possible. Uses virtual transaction size as\n"
              "defined in BIP 141 (witness data is discounted).\n"
              "\nArguments:\n"
              "1. conf_target (numeric) Confirmation target in blocks (1 - 1008)\n"
              "2. threshold   (numeric, optional) The proportion of transactions in a given feerate range that must have been\n"
              "               confirmed within conf_target in order to consider those feerates as high enough and proceed to check\n"
              "               lower buckets.  Default: 0.95\n"
              "\nResult:\n"
              "{\n"
              "  \"short\" : {            (json object, optional) estimate for short time horizon\n"
              "      \"feerate\" : x.x,        (numeric, optional) estimate fee rate in " + CURRENCY_UNIT + "/kB\n"
              "      \"decay\" : x.x,          (numeric) exponential decay (per block) for historical moving average of confirmation data\n"
              "      \"scale\" : x,            (numeric) The resolution of confirmation targets at this time horizon\n"
              "      \"pass\" : {              (json object, optional) information about the lowest range of feerates to succeed in meeting the threshold\n"
              "          \"startrange\" : x.x,     (numeric) start of feerate range\n"
              "          \"endrange\" : x.x,       (numeric) end of feerate range\n"
              "          \"withintarget\" : x.x,   (numeric) number of txs over history horizon in the feerate range that were confirmed within target\n"
              "          \"totalconfirmed\" : x.x, (numeric) number of txs over history horizon in the feerate range that were confirmed at any point\n"
              "          \"inmempool\" : x.x,      (numeric) current number of txs in mempool in the feerate range unconfirmed for at least target blocks\n"
              "          \"leftmempool\" : x.x,    (numeric) number of txs over history horizon in the feerate range that left mempool unconfirmed after target\n"
              "      },\n"
              "      \"fail\" : { ... },       (json object, optional) information about the highest range of feerates to fail to meet the threshold\n"
              "      \"errors\":  [ str... ]   (json array of strings, optional) Errors encountered during processing\n"
              "  },\n"
              "  \"medium\" : { ... },    (json object, optional) estimate for medium time horizon\n"
              "  \"long\" : { ... }       (json object) estimate for long time horizon\n"
              "}\n"
              "\n"
              "Results are returned for any horizon which tracks blocks up to the confirmation target.\n"
              "\nExample:\n"
              + HelpExampleCli("estimaterawfee", "6 0.9")
              );
  
      RPCTypeCheck(request.params, {UniValue::VNUM, UniValue::VNUM}, true);
      RPCTypeCheckArgument(request.params[0], UniValue::VNUM);
      unsigned int conf_target = ParseConfirmTarget(request.params[0]);
      double threshold = 0.95;
      if (!request.params[1].isNull()) {
          threshold = request.params[1].get_real();
      }
      if (threshold < 0 || threshold > 1) {
          throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid threshold");
      }
  
      UniValue result(UniValue::VOBJ);
  
      for (FeeEstimateHorizon horizon : {FeeEstimateHorizon::SHORT_HALFLIFE, FeeEstimateHorizon::MED_HALFLIFE, FeeEstimateHorizon::LONG_HALFLIFE}) {
          MCFeeRate feeRate;
          EstimationResult buckets;
  
          // Only output results for horizons which track the target
          if (conf_target > ::feeEstimator.HighestTargetTracked(horizon)) continue;
  
          feeRate = ::feeEstimator.EstimateRawFee(conf_target, threshold, horizon, &buckets);
          UniValue horizon_result(UniValue::VOBJ);
          UniValue errors(UniValue::VARR);
          UniValue passbucket(UniValue::VOBJ);
          passbucket.push_back(Pair("startrange", round(buckets.pass.start)));
          passbucket.push_back(Pair("endrange", round(buckets.pass.end)));
          passbucket.push_back(Pair("withintarget", round(buckets.pass.withinTarget * 100.0) / 100.0));
          passbucket.push_back(Pair("totalconfirmed", round(buckets.pass.totalConfirmed * 100.0) / 100.0));
          passbucket.push_back(Pair("inmempool", round(buckets.pass.inMempool * 100.0) / 100.0));
          passbucket.push_back(Pair("leftmempool", round(buckets.pass.leftMempool * 100.0) / 100.0));
          UniValue failbucket(UniValue::VOBJ);
          failbucket.push_back(Pair("startrange", round(buckets.fail.start)));
          failbucket.push_back(Pair("endrange", round(buckets.fail.end)));
          failbucket.push_back(Pair("withintarget", round(buckets.fail.withinTarget * 100.0) / 100.0));
          failbucket.push_back(Pair("totalconfirmed", round(buckets.fail.totalConfirmed * 100.0) / 100.0));
          failbucket.push_back(Pair("inmempool", round(buckets.fail.inMempool * 100.0) / 100.0));
          failbucket.push_back(Pair("leftmempool", round(buckets.fail.leftMempool * 100.0) / 100.0));
  
          // MCFeeRate(0) is used to indicate error as a return value from estimateRawFee
          if (feeRate != MCFeeRate(0)) {
              horizon_result.push_back(Pair("feerate", ValueFromAmount(feeRate.GetFeePerK())));
              horizon_result.push_back(Pair("decay", buckets.decay));
              horizon_result.push_back(Pair("scale", (int)buckets.scale));
              horizon_result.push_back(Pair("pass", passbucket));
              // buckets.fail.start == -1 indicates that all buckets passed, there is no fail bucket to output
              if (buckets.fail.start != -1) horizon_result.push_back(Pair("fail", failbucket));
          } else {
              // Output only information that is still meaningful in the event of error
              horizon_result.push_back(Pair("decay", buckets.decay));
              horizon_result.push_back(Pair("scale", (int)buckets.scale));
              horizon_result.push_back(Pair("fail", failbucket));
              errors.push_back("Insufficient data or no feerate found which meets threshold");
              horizon_result.push_back(Pair("errors",errors));
          }
          result.push_back(Pair(StringForFeeEstimateHorizon(horizon), horizon_result));
      }
      return result;
  }
  
  UniValue updateminingreservetxsize(const JSONRPCRequest& request)
  {
      if (request.fHelp || request.params.size() > 3)
          throw std::runtime_error(
              "updateminingreservetxsize pubcontractsize callcontractsize branchtxsize\n"
              "\n set / get tx reserve size for addPackageTxs.\n"
              "\nArguments:\n"
              "1. pubcontractsize (numeric, optional) ReservePubContractBlockDataSize\n"
              "2. callcontractsize   (numeric, optional) ReserveCallContractBlockDataSize\n"
              "3. branchtxsize      (numeric, optional) ReserveBranchTxBlockDataSize\n"
              "\n"
              "\nResult:\n"
              "{\n"
              "  \"ReservePubContractBlockDataSize\" : ReservePubContractBlockDataSize\n"
              "  \"ReserveCallContractBlockDataSize\" : ReserveCallContractBlockDataSize\n"
              "  \"ReserveBranchTxBlockDataSize\" : ReserveBranchTxBlockDataSize\n"
              "}\n"
              "\n"
              "Results are returned for any horizon which tracks blocks up to the confirmation target.\n"
              "\nExample:\n"
              + HelpExampleCli("updateminingreservetxsize", "100 1000 1000")
          );
  
      if (request.params.size() > 0){
          ReservePubContractBlockDataSize = request.params[0].get_int64();
      }
      if (request.params.size() > 1) {
          ReserveCallContractBlockDataSize = request.params[1].get_int64();
      }
      if (request.params.size() > 2) {
          ReserveBranchTxBlockDataSize = request.params[2].get_int64();
      }
  
      UniValue result(UniValue::VOBJ);
      result.push_back(Pair("ReservePubContractBlockDataSize", ReservePubContractBlockDataSize));
      result.push_back(Pair("ReserveCallContractBlockDataSize", ReserveCallContractBlockDataSize));
      result.push_back(Pair("ReserveBranchTxBlockDataSize", ReserveBranchTxBlockDataSize));
      return result;
  }
  
  static const CRPCCommand commands[] =
  { //  category              name                      actor (function)         okSafeMode
    //  --------------------- ------------------------  -----------------------  ----------
      { "mining",             "getnetworkhashps",       &getnetworkhashps,       true,  {"nblocks","height"} },
      { "mining",             "getmininginfo",          &getmininginfo,          true,  {} },
      { "mining",             "prioritisetransaction",  &prioritisetransaction,  true,  {"txid","dummy","fee_delta"} },
   //   { "mining",             "getblocktemplate",       &getblocktemplate,       true,  { "address", "template_request"} },
      { "mining",             "submitblock",            &submitblock,            true,  {"hexdata","dummy"} },
  
      { "generating",         "generate",               &generate,               true,  { "nblocks","maxtries" } },
      { "generating",         "generateforbigboom",     &generateforbigboom,	   true,  { "nblocks","maxtries" } },
  
      { "generating",         "generatetoaddress",      &generatetoaddress,      true,  {"nblocks","address","maxtries"} },
  	{ "setgenerate",        "setgenerate",			  &setgenerate,			   true,  { "generate"} },
      { "mining",             "mineblanch2ndblock",     &mineblanch2ndblock,     true,  {"mineblanch2ndblock"}},
  	
      { "util",               "estimatefee",            &estimatefee,            true,  {"nblocks"} },
      { "util",               "estimatesmartfee",       &estimatesmartfee,       true,  {"conf_target", "estimate_mode"} },
  
      { "hidden",             "estimaterawfee",         &estimaterawfee,         true,  {"conf_target", "threshold"} },
      { "mining",             "updateminingreservetxsize",&updateminingreservetxsize ,true, {"reservesize","reservesize","reservesize"} },
  };
  
  void RegisterMiningRPCCommands(CRPCTable &t)
  {
      for (unsigned int vcidx = 0; vcidx < ARRAYLEN(commands); vcidx++)
          t.appendCommand(commands[vcidx].name, &commands[vcidx]);
  }
  