text: // Copyright (c) 2014-2015 The Dash developers
  // Copyright (c) 2015-2017 The PIVX developers
  // Copyright (c) 2018 LightPayCoin developers
  // Copyright (c) 2018 The Starnodes developers
  // Distributed under the MIT/X11 software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include "init.h"
  #include "main.h"
  
  #include "addrman.h"
  #include "masternode-budget.h"
  #include "masternode-sync.h"
  #include "masternode.h"
  #include "masternodeman.h"
  #include "obfuscation.h"
  #include "util.h"
  #include <boost/filesystem.hpp>
  #include <boost/lexical_cast.hpp>
  
  CBudgetManager budget;
  CCriticalSection cs_budget;
  
  std::map<uint256, int64_t> askedForSourceProposalOrBudget;
  std::vector<CBudgetProposalBroadcast> vecImmatureBudgetProposals;
  std::vector<CFinalizedBudgetBroadcast> vecImmatureFinalizedBudgets;
  
  int nSubmittedFinalBudget;
  
  int GetBudgetPaymentCycleBlocks()
  {
      // Amount of blocks in a months period of time (using 1 minutes per) = (60*24*30)
      if (Params().NetworkID() == CBaseChainParams::MAIN) return 43200;
      //for testing purposes
  
      return 144; //ten times per day
  }
  
  bool IsBudgetCollateralValid(uint256 nTxCollateralHash, uint256 nExpectedHash, std::string& strError, int64_t& nTime, int& nConf)
  {
      CTransaction txCollateral;
      uint256 nBlockHash;
      if (!GetTransaction(nTxCollateralHash, txCollateral, nBlockHash, true)) {
          strError = strprintf("Can't find collateral tx %s", txCollateral.ToString());
          LogPrintf("CBudgetProposalBroadcast::IsBudgetCollateralValid - %s\n", strError);
          return false;
      }
  
      if (txCollateral.vout.size() < 1) return false;
      if (txCollateral.nLockTime != 0) return false;
  
      CScript findScript;
      findScript << OP_RETURN << ToByteVector(nExpectedHash);
  
      bool foundOpReturn = false;
      BOOST_FOREACH (const CTxOut o, txCollateral.vout) {
          if (!o.scriptPubKey.IsNormalPaymentScript() && !o.scriptPubKey.IsUnspendable()) {
              strError = strprintf("Invalid Script %s", txCollateral.ToString());
              LogPrintf("CBudgetProposalBroadcast::IsBudgetCollateralValid - %s\n", strError);
              return false;
          }
          if (o.scriptPubKey == findScript && o.nValue >= PROPOSAL_FEE_TX) foundOpReturn = true;
      }
      if (!foundOpReturn) {
          strError = strprintf("Couldn't find opReturn %s in %s", nExpectedHash.ToString(), txCollateral.ToString());
          LogPrintf("CBudgetProposalBroadcast::IsBudgetCollateralValid - %s\n", strError);
          return false;
      }
  
      // RETRIEVE CONFIRMATIONS AND NTIME
      /*
          - nTime starts as zero and is passed-by-reference out of this function and stored in the external proposal
          - nTime is never validated via the hashing mechanism and comes from a full-validated source (the blockchain)
      */
  
      int conf = GetIXConfirmations(nTxCollateralHash);
      if (nBlockHash != uint256(0)) {
          BlockMap::iterator mi = mapBlockIndex.find(nBlockHash);
          if (mi != mapBlockIndex.end() && (*mi).second) {
              CBlockIndex* pindex = (*mi).second;
              if (chainActive.Contains(pindex)) {
                  conf += chainActive.Height() - pindex->nHeight + 1;
                  nTime = pindex->nTime;
              }
          }
      }
  
      nConf = conf;
  
      //if we're syncing we won't have swiftTX information, so accept 1 confirmation
      if (conf >= BUDGET_FEE_CONFIRMATIONS) {
          return true;
      } else {
          strError = strprintf("Collateral requires at least %d confirmations - %d confirmations", BUDGET_FEE_CONFIRMATIONS, conf);
          LogPrintf("CBudgetProposalBroadcast::IsBudgetCollateralValid - %s - %d confirmations\n", strError, conf);
          return false;
      }
  }
  
  void CBudgetManager::CheckOrphanVotes()
  {
      LOCK(cs);
  
  
      std::string strError = "";
      std::map<uint256, CBudgetVote>::iterator it1 = mapOrphanMasternodeBudgetVotes.begin();
      while (it1 != mapOrphanMasternodeBudgetVotes.end()) {
          if (budget.UpdateProposal(((*it1).second), NULL, strError)) {
              LogPrintf("CBudgetManager::CheckOrphanVotes - Proposal/Budget is known, activating and removing orphan vote\n");
              mapOrphanMasternodeBudgetVotes.erase(it1++);
          } else {
              ++it1;
          }
      }
      std::map<uint256, CFinalizedBudgetVote>::iterator it2 = mapOrphanFinalizedBudgetVotes.begin();
      while (it2 != mapOrphanFinalizedBudgetVotes.end()) {
          if (budget.UpdateFinalizedBudget(((*it2).second), NULL, strError)) {
              LogPrintf("CBudgetManager::CheckOrphanVotes - Proposal/Budget is known, activating and removing orphan vote\n");
              mapOrphanFinalizedBudgetVotes.erase(it2++);
          } else {
              ++it2;
          }
      }
  }
  
  void CBudgetManager::SubmitFinalBudget()
  {
      static int nSubmittedHeight = 0; // height at which final budget was submitted last time
      int nCurrentHeight;
  
      {
          TRY_LOCK(cs_main, locked);
          if (!locked) return;
          if (!chainActive.Tip()) return;
          nCurrentHeight = chainActive.Height();
      }
  
      int nBlockStart = nCurrentHeight - nCurrentHeight % GetBudgetPaymentCycleBlocks() + GetBudgetPaymentCycleBlocks();
      if (nSubmittedHeight >= nBlockStart) return;
      //submit final budget 2 days before payment for Mainnet, about 9 minutes for Testnet
      if (nBlockStart - nCurrentHeight > ((GetBudgetPaymentCycleBlocks() / 30) * 2)) return;
  
      std::vector<CBudgetProposal*> vBudgetProposals = budget.GetBudget();
      std::string strBudgetName = "main";
      std::vector<CTxBudgetPayment> vecTxBudgetPayments;
  
      for (unsigned int i = 0; i < vBudgetProposals.size(); i++) {
          CTxBudgetPayment txBudgetPayment;
          txBudgetPayment.nProposalHash = vBudgetProposals[i]->GetHash();
          txBudgetPayment.payee = vBudgetProposals[i]->GetPayee();
          txBudgetPayment.nAmount = vBudgetProposals[i]->GetAllotted();
          vecTxBudgetPayments.push_back(txBudgetPayment);
      }
  
      if (vecTxBudgetPayments.size() < 1) {
          LogPrintf("CBudgetManager::SubmitFinalBudget - Found No Proposals For Period\n");
          return;
      }
  
      CFinalizedBudgetBroadcast tempBudget(strBudgetName, nBlockStart, vecTxBudgetPayments, 0);
      if (mapSeenFinalizedBudgets.count(tempBudget.GetHash())) {
          LogPrintf("CBudgetManager::SubmitFinalBudget - Budget already exists - %s\n", tempBudget.GetHash().ToString());
          nSubmittedHeight = nCurrentHeight;
          return; //already exists
      }
  
      //create fee tx
      CTransaction tx;
      uint256 txidCollateral;
  
      if (!mapCollateralTxids.count(tempBudget.GetHash())) {
          CWalletTx wtx;
          if (!pwalletMain->GetBudgetSystemCollateralTX(wtx, tempBudget.GetHash(), false)) {
              LogPrintf("CBudgetManager::SubmitFinalBudget - Can't make collateral transaction\n");
              return;
          }
  
          // make our change address
          CReserveKey reservekey(pwalletMain);
          //send the tx to the network
          pwalletMain->CommitTransaction(wtx, reservekey, "ix");
          tx = (CTransaction)wtx;
          txidCollateral = tx.GetHash();
          mapCollateralTxids.insert(make_pair(tempBudget.GetHash(), txidCollateral));
      } else {
          txidCollateral = mapCollateralTxids[tempBudget.GetHash()];
      }
  
      int conf = GetIXConfirmations(txidCollateral);
      CTransaction txCollateral;
      uint256 nBlockHash;
  
      if (!GetTransaction(txidCollateral, txCollateral, nBlockHash, true)) {
          LogPrintf("CBudgetManager::SubmitFinalBudget - Can't find collateral tx %s", txidCollateral.ToString());
          return;
      }
  
      if (nBlockHash != uint256(0)) {
          BlockMap::iterator mi = mapBlockIndex.find(nBlockHash);
          if (mi != mapBlockIndex.end() && (*mi).second) {
              CBlockIndex* pindex = (*mi).second;
              if (chainActive.Contains(pindex)) {
                  conf += chainActive.Height() - pindex->nHeight + 1;
              }
          }
      }
  
      /*
          Wait will we have 1 extra confirmation, otherwise some clients might reject this feeTX
          -- This function is tied to NewBlock, so we will propagate this budget while the block is also propagating
      */
      if (conf < BUDGET_FEE_CONFIRMATIONS + 1) {
          LogPrintf("CBudgetManager::SubmitFinalBudget - Collateral requires at least %d confirmations - %s - %d confirmations\n", BUDGET_FEE_CONFIRMATIONS + 1, txidCollateral.ToString(), conf);
          return;
      }
  
      //create the proposal incase we're the first to make it
      CFinalizedBudgetBroadcast finalizedBudgetBroadcast(strBudgetName, nBlockStart, vecTxBudgetPayments, txidCollateral);
  
      std::string strError = "";
      if (!finalizedBudgetBroadcast.IsValid(strError)) {
          LogPrintf("CBudgetManager::SubmitFinalBudget - Invalid finalized budget - %s \n", strError);
          return;
      }
  
      LOCK(cs);
      mapSeenFinalizedBudgets.insert(make_pair(finalizedBudgetBroadcast.GetHash(), finalizedBudgetBroadcast));
      finalizedBudgetBroadcast.Relay();
      budget.AddFinalizedBudget(finalizedBudgetBroadcast);
      nSubmittedHeight = nCurrentHeight;
      LogPrintf("CBudgetManager::SubmitFinalBudget - Done! %s\n", finalizedBudgetBroadcast.GetHash().ToString());
  }
  
  //
  // CBudgetDB
  //
  
  CBudgetDB::CBudgetDB()
  {
      pathDB = GetDataDir() / "budget.dat";
      strMagicMessage = "MasternodeBudget";
  }
  
  bool CBudgetDB::Write(const CBudgetManager& objToSave)
  {
      LOCK(objToSave.cs);
  
      int64_t nStart = GetTimeMillis();
  
      // serialize, checksum data up to that point, then append checksum
      CDataStream ssObj(SER_DISK, CLIENT_VERSION);
      ssObj << strMagicMessage;                   // masternode cache file specific magic message
      ssObj << FLATDATA(Params().MessageStart()); // network specific magic number
      ssObj << objToSave;
      uint256 hash = Hash(ssObj.begin(), ssObj.end());
      ssObj << hash;
  
      // open output file, and associate with CAutoFile
      FILE* file = fopen(pathDB.string().c_str(), "wb");
      CAutoFile fileout(file, SER_DISK, CLIENT_VERSION);
      if (fileout.IsNull())
          return error("%s : Failed to open file %s", __func__, pathDB.string());
  
      // Write and commit header, data
      try {
          fileout << ssObj;
      } catch (std::exception& e) {
          return error("%s : Serialize or I/O error - %s", __func__, e.what());
      }
      fileout.fclose();
  
      LogPrintf("Written info to budget.dat  %dms\n", GetTimeMillis() - nStart);
  
      return true;
  }
  
  CBudgetDB::ReadResult CBudgetDB::Read(CBudgetManager& objToLoad, bool fDryRun)
  {
      LOCK(objToLoad.cs);
  
      int64_t nStart = GetTimeMillis();
      // open input file, and associate with CAutoFile
      FILE* file = fopen(pathDB.string().c_str(), "rb");
      CAutoFile filein(file, SER_DISK, CLIENT_VERSION);
      if (filein.IsNull()) {
          error("%s : Failed to open file %s", __func__, pathDB.string());
          return FileError;
      }
  
      // use file size to size memory buffer
      int fileSize = boost::filesystem::file_size(pathDB);
      int dataSize = fileSize - sizeof(uint256);
      // Don't try to resize to a negative number if file is small
      if (dataSize < 0)
          dataSize = 0;
      vector<unsigned char> vchData;
      vchData.resize(dataSize);
      uint256 hashIn;
  
      // read data and checksum from file
      try {
          filein.read((char*)&vchData[0], dataSize);
          filein >> hashIn;
      } catch (std::exception& e) {
          error("%s : Deserialize or I/O error - %s", __func__, e.what());
          return HashReadError;
      }
      filein.fclose();
  
      CDataStream ssObj(vchData, SER_DISK, CLIENT_VERSION);
  
      // verify stored checksum matches input data
      uint256 hashTmp = Hash(ssObj.begin(), ssObj.end());
      if (hashIn != hashTmp) {
          error("%s : Checksum mismatch, data corrupted", __func__);
          return IncorrectHash;
      }
  
  
      unsigned char pchMsgTmp[4];
      std::string strMagicMessageTmp;
      try {
          // de-serialize file header (masternode cache file specific magic message) and ..
          ssObj >> strMagicMessageTmp;
  
          // ... verify the message matches predefined one
          if (strMagicMessage != strMagicMessageTmp) {
              error("%s : Invalid masternode cache magic message", __func__);
              return IncorrectMagicMessage;
          }
  
  
          // de-serialize file header (network specific magic number) and ..
          ssObj >> FLATDATA(pchMsgTmp);
  
          // ... verify the network matches ours
          if (memcmp(pchMsgTmp, Params().MessageStart(), sizeof(pchMsgTmp))) {
              error("%s : Invalid network magic number", __func__);
              return IncorrectMagicNumber;
          }
  
          // de-serialize data into CBudgetManager object
          ssObj >> objToLoad;
      } catch (std::exception& e) {
          objToLoad.Clear();
          error("%s : Deserialize or I/O error - %s", __func__, e.what());
          return IncorrectFormat;
      }
  
      LogPrintf("Loaded info from budget.dat  %dms\n", GetTimeMillis() - nStart);
      LogPrintf("  %s\n", objToLoad.ToString());
      if (!fDryRun) {
          LogPrintf("Budget manager - cleaning....\n");
          objToLoad.CheckAndRemove();
          LogPrintf("Budget manager - result:\n");
          LogPrintf("  %s\n", objToLoad.ToString());
      }
  
      return Ok;
  }
  
  void DumpBudgets()
  {
      int64_t nStart = GetTimeMillis();
  
      CBudgetDB budgetdb;
      CBudgetManager tempBudget;
  
      LogPrintf("Verifying budget.dat format...\n");
      CBudgetDB::ReadResult readResult = budgetdb.Read(tempBudget, true);
      // there was an error and it was not an error on file opening => do not proceed
      if (readResult == CBudgetDB::FileError)
          LogPrintf("Missing budgets file - budget.dat, will try to recreate\n");
      else if (readResult != CBudgetDB::Ok) {
          LogPrintf("Error reading budget.dat: ");
          if (readResult == CBudgetDB::IncorrectFormat)
              LogPrintf("magic is ok but data has invalid format, will try to recreate\n");
          else {
              LogPrintf("file format is unknown or invalid, please fix it manually\n");
              return;
          }
      }
      LogPrintf("Writting info to budget.dat...\n");
      budgetdb.Write(budget);
  
      LogPrintf("Budget dump finished  %dms\n", GetTimeMillis() - nStart);
  }
  
  bool CBudgetManager::AddFinalizedBudget(CFinalizedBudget& finalizedBudget)
  {
      std::string strError = "";
      if (!finalizedBudget.IsValid(strError)) return false;
  
      if (mapFinalizedBudgets.count(finalizedBudget.GetHash())) {
          return false;
      }
  
      mapFinalizedBudgets.insert(make_pair(finalizedBudget.GetHash(), finalizedBudget));
      return true;
  }
  
  bool CBudgetManager::AddProposal(CBudgetProposal& budgetProposal)
  {
      LOCK(cs);
      std::string strError = "";
      if (!budgetProposal.IsValid(strError)) {
          LogPrintf("CBudgetManager::AddProposal - invalid budget proposal - %s\n", strError);
          return false;
      }
  
      if (mapProposals.count(budgetProposal.GetHash())) {
          return false;
      }
  
      mapProposals.insert(make_pair(budgetProposal.GetHash(), budgetProposal));
      LogPrintf("CBudgetManager::AddProposal - proposal %s added\n", budgetProposal.GetName ().c_str ());
      return true;
  }
  
  void CBudgetManager::CheckAndRemove()
  {
      LogPrint("mnbudget", "CBudgetManager::CheckAndRemove\n");
  
      std::string strError = "";
  
      LogPrint("mnbudget", "CBudgetManager::CheckAndRemove - mapFinalizedBudgets cleanup - size: %d\n", mapFinalizedBudgets.size());
      std::map<uint256, CFinalizedBudget>::iterator it = mapFinalizedBudgets.begin();
      while (it != mapFinalizedBudgets.end()) {
          CFinalizedBudget* pfinalizedBudget = &((*it).second);
  
          pfinalizedBudget->fValid = pfinalizedBudget->IsValid(strError);
          LogPrintf("CBudgetManager::CheckAndRemove - pfinalizedBudget->IsValid - strError: %s\n", strError);
          if (pfinalizedBudget->fValid) {
              pfinalizedBudget->AutoCheck();
          }
  
          ++it;
      }
  
      LogPrint("mnbudget", "CBudgetManager::CheckAndRemove - mapProposals cleanup - size: %d\n", mapProposals.size());
      std::map<uint256, CBudgetProposal>::iterator it2 = mapProposals.begin();
      while (it2 != mapProposals.end()) {
          CBudgetProposal* pbudgetProposal = &((*it2).second);
          pbudgetProposal->fValid = pbudgetProposal->IsValid(strError);
          if (!strError.empty ()) {
              LogPrintf("CBudgetManager::CheckAndRemove - invalid budget proposal %s - %s\n", pbudgetProposal->GetName().c_str (), strError);
              strError = "";
          }
          ++it2;
      }
  
      LogPrintf("CBudgetManager::CheckAndRemove - PASSED\n");
  }
  
  void CBudgetManager::FillBlockPayee(CMutableTransaction& txNew, CAmount nFees, bool fProofOfStake)
  {
      LOCK(cs);
  
      CBlockIndex* pindexPrev = chainActive.Tip();
      if (!pindexPrev) return;
  
      int nHighestCount = 0;
      CScript payee;
      CAmount nAmount = 0;
  
      // ------- Grab The Highest Count
  
      std::map<uint256, CFinalizedBudget>::iterator it = mapFinalizedBudgets.begin();
      while (it != mapFinalizedBudgets.end()) {
          CFinalizedBudget* pfinalizedBudget = &((*it).second);
          if (pfinalizedBudget->GetVoteCount() > nHighestCount &&
              pindexPrev->nHeight + 1 >= pfinalizedBudget->GetBlockStart() &&
              pindexPrev->nHeight + 1 <= pfinalizedBudget->GetBlockEnd() &&
              pfinalizedBudget->GetPayeeAndAmount(pindexPrev->nHeight + 1, payee, nAmount)) {
              nHighestCount = pfinalizedBudget->GetVoteCount();
          }
  
          ++it;
      }
  
      CAmount blockValue = GetBlockValue(pindexPrev->nHeight);
  
      if (fProofOfStake) {
          if (nHighestCount > 0) {
              unsigned int i = txNew.vout.size();
              txNew.vout.resize(i + 1);
              txNew.vout[i].scriptPubKey = payee;
              txNew.vout[i].nValue = nAmount;
  
              CTxDestination address1;
              ExtractDestination(payee, address1);
              CBitcoinAddress address2(address1);
              LogPrint("masternode","CBudgetManager::FillBlockPayee - Budget payment to %s for %lld, nHighestCount = %d\n", address2.ToString(), nAmount, nHighestCount);
          }
          else {
              LogPrint("masternode","CBudgetManager::FillBlockPayee - No Budget payment, nHighestCount = %d\n", nHighestCount);
          }
      } else {
          //miners get the full amount on these blocks
          txNew.vout[0].nValue = blockValue;
  
          if (nHighestCount > 0) {
              txNew.vout.resize(2);
  
              //these are super blocks, so their value can be much larger than normal
              txNew.vout[1].scriptPubKey = payee;
              txNew.vout[1].nValue = nAmount;
  
              CTxDestination address1;
              ExtractDestination(payee, address1);
              CBitcoinAddress address2(address1);
  
              LogPrint("masternode","CBudgetManager::FillBlockPayee - Budget payment to %s for %lld\n", address2.ToString(), nAmount);
          }
      }
  }
  
  CFinalizedBudget* CBudgetManager::FindFinalizedBudget(uint256 nHash)
  {
      if (mapFinalizedBudgets.count(nHash))
          return &mapFinalizedBudgets[nHash];
  
      return NULL;
  }
  
  CBudgetProposal* CBudgetManager::FindProposal(const std::string& strProposalName)
  {
      //find the prop with the highest yes count
  
      int nYesCount = -99999;
      CBudgetProposal* pbudgetProposal = NULL;
  
      std::map<uint256, CBudgetProposal>::iterator it = mapProposals.begin();
      while (it != mapProposals.end()) {
          if ((*it).second.strProposalName == strProposalName && (*it).second.GetYeas() > nYesCount) {
              pbudgetProposal = &((*it).second);
              nYesCount = pbudgetProposal->GetYeas();
          }
          ++it;
      }
  
      if (nYesCount == -99999) return NULL;
  
      return pbudgetProposal;
  }
  
  CBudgetProposal* CBudgetManager::FindProposal(uint256 nHash)
  {
      LOCK(cs);
  
      if (mapProposals.count(nHash))
          return &mapProposals[nHash];
  
      return NULL;
  }
  
  bool CBudgetManager::IsBudgetPaymentBlock(int nBlockHeight)
  {
      int nHighestCount = -1;
  
      std::map<uint256, CFinalizedBudget>::iterator it = mapFinalizedBudgets.begin();
      while (it != mapFinalizedBudgets.end()) {
          CFinalizedBudget* pfinalizedBudget = &((*it).second);
          if (pfinalizedBudget->GetVoteCount() > nHighestCount &&
              nBlockHeight >= pfinalizedBudget->GetBlockStart() &&
              nBlockHeight <= pfinalizedBudget->GetBlockEnd()) {
              nHighestCount = pfinalizedBudget->GetVoteCount();
          }
  
          ++it;
      }
  
      /*
          If budget doesn't have 5% of the network votes, then we should pay a masternode instead
      */
      if (nHighestCount > mnodeman.CountEnabled(ActiveProtocol()) / 20) return true;
  
      return false;
  }
  
  bool CBudgetManager::HasNextFinalizedBudget()
  {
      CBlockIndex* pindexPrev = chainActive.Tip();
      if (!pindexPrev) return false;
  
      if (masternodeSync.IsBudgetFinEmpty()) return true;
  
      int nBlockStart = pindexPrev->nHeight - pindexPrev->nHeight % GetBudgetPaymentCycleBlocks() + GetBudgetPaymentCycleBlocks();
      if (nBlockStart - pindexPrev->nHeight > 576 * 2) return true; //we wouldn't have the budget yet
  
      if (budget.IsBudgetPaymentBlock(nBlockStart)) return true;
  
      LogPrintf("CBudgetManager::HasNextFinalizedBudget() - Client is missing budget - %lli\n", nBlockStart);
  
      return false;
  }
  
  bool CBudgetManager::IsTransactionValid(const CTransaction& txNew, int nBlockHeight)
  {
      LOCK(cs);
  
      int nHighestCount = 0;
      std::vector<CFinalizedBudget*> ret;
  
      // ------- Grab The Highest Count
  
      std::map<uint256, CFinalizedBudget>::iterator it = mapFinalizedBudgets.begin();
      while (it != mapFinalizedBudgets.end()) {
          CFinalizedBudget* pfinalizedBudget = &((*it).second);
          if (pfinalizedBudget->GetVoteCount() > nHighestCount &&
              nBlockHeight >= pfinalizedBudget->GetBlockStart() &&
              nBlockHeight <= pfinalizedBudget->GetBlockEnd()) {
              nHighestCount = pfinalizedBudget->GetVoteCount();
          }
  
          ++it;
      }
  
      /*
          If budget doesn't have 5% of the network votes, then we should pay a masternode instead
      */
      if (nHighestCount < mnodeman.CountEnabled(ActiveProtocol()) / 20) return false;
  
      // check the highest finalized budgets (+/- 10% to assist in consensus)
  
      it = mapFinalizedBudgets.begin();
      while (it != mapFinalizedBudgets.end()) {
          CFinalizedBudget* pfinalizedBudget = &((*it).second);
  
      if (pfinalizedBudget->GetVoteCount() > nHighestCount - mnodeman.CountEnabled(ActiveProtocol()) / 10) {
              LogPrintf("CBudgetManager::IsTransactionValid() - GetVoteCount: %d is larger than nHighestCount(%d) - masternodes/10 (%d) \n", pfinalizedBudget->GetVoteCount(), nHighestCount, mnodeman.CountEnabled(ActiveProtocol()) / 10);
              if (nBlockHeight >= pfinalizedBudget->GetBlockStart() && nBlockHeight <= pfinalizedBudget->GetBlockEnd()) {
                  LogPrintf("CBudgetManager::IsTransactionValid() - nBlockHeight(%d) is >= block start(%d) and <= block end(%d)\n", nBlockHeight, pfinalizedBudget->GetBlockStart(), pfinalizedBudget->GetBlockEnd());
                  if (pfinalizedBudget->IsTransactionValid(txNew, nBlockHeight)) {
                      LogPrintf("CBudgetManager::IsTransactionValid() - finalizedBudget->IsTransactionValid - true");
                      return true;
                  } else {
                      LogPrintf("CBudgetManager::IsTransactionValid() - finalizedBudget->IsTransactionValid - false");
                  }
              } else {
                  LogPrintf("CBudgetManager::IsTransactionValid() - nBlockHeight(%d) is NOT >= block start(%d) and <= block end(%d)\n", nBlockHeight, pfinalizedBudget->GetBlockStart(), pfinalizedBudget->GetBlockEnd());
              }
          } else {
              LogPrintf("CBudgetManager::IsTransactionValid() - GetVoteCount: %d is NOT larger than nHighestCount(%d) - masternodes/10 (%d) \n", pfinalizedBudget->GetVoteCount(), nHighestCount, mnodeman.CountEnabled(ActiveProtocol()) / 10);
          }
          ++it;
      }
      LogPrintf("CBudgetManager::IsTransactionValid() - We looked through all of the known budgets and couldn't find what we were looking for\n" );
      //we looked through all of the known budgets
      return false;
  }
  
  std::vector<CBudgetProposal*> CBudgetManager::GetAllProposals()
  {
      LOCK(cs);
  
      std::vector<CBudgetProposal*> vBudgetProposalRet;
  
      std::map<uint256, CBudgetProposal>::iterator it = mapProposals.begin();
      while (it != mapProposals.end()) {
          (*it).second.CleanAndRemove(false);
  
          CBudgetProposal* pbudgetProposal = &((*it).second);
          vBudgetProposalRet.push_back(pbudgetProposal);
  
          ++it;
      }
  
      return vBudgetProposalRet;
  }
  
  //
  // Sort by votes, if there's a tie sort by their feeHash TX
  //
  struct sortProposalsByVotes {
      bool operator()(const std::pair<CBudgetProposal*, int>& left, const std::pair<CBudgetProposal*, int>& right)
      {
          if (left.second != right.second)
              return (left.second > right.second);
          return (left.first->nFeeTXHash > right.first->nFeeTXHash);
      }
  };
  
  //Need to review this function
  std::vector<CBudgetProposal*> CBudgetManager::GetBudget()
  {
      LOCK(cs);
  
      // ------- Sort budgets by Yes Count
  
      std::vector<std::pair<CBudgetProposal*, int> > vBudgetPorposalsSort;
  
      std::map<uint256, CBudgetProposal>::iterator it = mapProposals.begin();
      while (it != mapProposals.end()) {
          (*it).second.CleanAndRemove(false);
          vBudgetPorposalsSort.push_back(make_pair(&((*it).second), (*it).second.GetYeas() - (*it).second.GetNays()));
          ++it;
      }
  
      std::sort(vBudgetPorposalsSort.begin(), vBudgetPorposalsSort.end(), sortProposalsByVotes());
  
      // ------- Grab The Budgets In Order
  
      std::vector<CBudgetProposal*> vBudgetProposalsRet;
  
      CAmount nBudgetAllocated = 0;
      CBlockIndex* pindexPrev = chainActive.Tip();
      if (pindexPrev == NULL) return vBudgetProposalsRet;
  
      int nBlockStart = pindexPrev->nHeight - pindexPrev->nHeight % GetBudgetPaymentCycleBlocks() + GetBudgetPaymentCycleBlocks();
      int nBlockEnd = nBlockStart + GetBudgetPaymentCycleBlocks() - 1;
      CAmount nTotalBudget = GetTotalBudget(nBlockStart);
  
  
      std::vector<std::pair<CBudgetProposal*, int> >::iterator it2 = vBudgetPorposalsSort.begin();
      while (it2 != vBudgetPorposalsSort.end()) {
          CBudgetProposal* pbudgetProposal = (*it2).first;
  
          //prop start/end should be inside this period
          if (pbudgetProposal->fValid && pbudgetProposal->nBlockStart <= nBlockStart &&
              pbudgetProposal->nBlockEnd >= nBlockEnd &&
              pbudgetProposal->GetYeas() - pbudgetProposal->GetNays() > mnodeman.CountEnabled(ActiveProtocol()) / 10 &&
              pbudgetProposal->IsEstablished()) {
              if (pbudgetProposal->GetAmount() + nBudgetAllocated <= nTotalBudget) {
                  pbudgetProposal->SetAllotted(pbudgetProposal->GetAmount());
                  nBudgetAllocated += pbudgetProposal->GetAmount();
                  vBudgetProposalsRet.push_back(pbudgetProposal);
              } else {
                  pbudgetProposal->SetAllotted(0);
              }
          }
  
          ++it2;
      }
  
      return vBudgetProposalsRet;
  }
  
  struct sortFinalizedBudgetsByVotes {
      bool operator()(const std::pair<CFinalizedBudget*, int>& left, const std::pair<CFinalizedBudget*, int>& right)
      {
          return left.second > right.second;
      }
  };
  
  std::vector<CFinalizedBudget*> CBudgetManager::GetFinalizedBudgets()
  {
      LOCK(cs);
  
      std::vector<CFinalizedBudget*> vFinalizedBudgetsRet;
      std::vector<std::pair<CFinalizedBudget*, int> > vFinalizedBudgetsSort;
  
      // ------- Grab The Budgets In Order
  
      std::map<uint256, CFinalizedBudget>::iterator it = mapFinalizedBudgets.begin();
      while (it != mapFinalizedBudgets.end()) {
          CFinalizedBudget* pfinalizedBudget = &((*it).second);
  
          vFinalizedBudgetsSort.push_back(make_pair(pfinalizedBudget, pfinalizedBudget->GetVoteCount()));
          ++it;
      }
      std::sort(vFinalizedBudgetsSort.begin(), vFinalizedBudgetsSort.end(), sortFinalizedBudgetsByVotes());
  
      std::vector<std::pair<CFinalizedBudget*, int> >::iterator it2 = vFinalizedBudgetsSort.begin();
      while (it2 != vFinalizedBudgetsSort.end()) {
          vFinalizedBudgetsRet.push_back((*it2).first);
          ++it2;
      }
  
      return vFinalizedBudgetsRet;
  }
  
  std::string CBudgetManager::GetRequiredPaymentsString(int nBlockHeight)
  {
      LOCK(cs);
  
      std::string ret = "unknown-budget";
  
      std::map<uint256, CFinalizedBudget>::iterator it = mapFinalizedBudgets.begin();
      while (it != mapFinalizedBudgets.end()) {
          CFinalizedBudget* pfinalizedBudget = &((*it).second);
          if (nBlockHeight >= pfinalizedBudget->GetBlockStart() && nBlockHeight <= pfinalizedBudget->GetBlockEnd()) {
              CTxBudgetPayment payment;
              if (pfinalizedBudget->GetBudgetPaymentByBlock(nBlockHeight, payment)) {
                  if (ret == "unknown-budget") {
                      ret = payment.nProposalHash.ToString();
                  } else {
                      ret += ",";
                      ret += payment.nProposalHash.ToString();
                  }
              } else {
                  LogPrintf("CBudgetManager::GetRequiredPaymentsString - Couldn't find budget payment for block %d\n", nBlockHeight);
              }
          }
  
          ++it;
      }
  
      return ret;
  }
  
  CAmount CBudgetManager::GetTotalBudget(int nHeight)
  {
  	return 0;
  }
  
  void CBudgetManager::NewBlock()
  {
      TRY_LOCK(cs, fBudgetNewBlock);
      if (!fBudgetNewBlock) return;
  
      if (masternodeSync.RequestedMasternodeAssets <= MASTERNODE_SYNC_BUDGET) return;
  
      if (strBudgetMode == "suggest") { //suggest the budget we see
          SubmitFinalBudget();
      }
  
      //this function should be called 1/14 blocks, allowing up to 100 votes per day on all proposals
      if (chainActive.Height() % 14 != 0) return;
  
      // incremental sync with our peers
      if (masternodeSync.IsSynced()) {
          LogPrintf("CBudgetManager::NewBlock - incremental sync started\n");
          if (chainActive.Height() % 1440 == rand() % 1440) {
              ClearSeen();
              ResetSync();
          }
  
          LOCK(cs_vNodes);
          BOOST_FOREACH (CNode* pnode, vNodes)
              if (pnode->nVersion >= ActiveProtocol())
                  Sync(pnode, 0, true);
  
          MarkSynced();
      }
  
  
      CheckAndRemove();
  
      //remove invalid votes once in a while (we have to check the signatures and validity of every vote, somewhat CPU intensive)
  
      LogPrintf("CBudgetManager::NewBlock - askedForSourceProposalOrBudget cleanup - size: %d\n", askedForSourceProposalOrBudget.size());
      std::map<uint256, int64_t>::iterator it = askedForSourceProposalOrBudget.begin();
      while (it != askedForSourceProposalOrBudget.end()) {
          if ((*it).second > GetTime() - (60 * 60 * 24)) {
              ++it;
          } else {
              askedForSourceProposalOrBudget.erase(it++);
          }
      }
  
      LogPrintf("CBudgetManager::NewBlock - mapProposals cleanup - size: %d\n", mapProposals.size());
      std::map<uint256, CBudgetProposal>::iterator it2 = mapProposals.begin();
      while (it2 != mapProposals.end()) {
          (*it2).second.CleanAndRemove(false);
          ++it2;
      }
  
      LogPrintf("CBudgetManager::NewBlock - mapFinalizedBudgets cleanup - size: %d\n", mapFinalizedBudgets.size());
      std::map<uint256, CFinalizedBudget>::iterator it3 = mapFinalizedBudgets.begin();
      while (it3 != mapFinalizedBudgets.end()) {
          (*it3).second.CleanAndRemove(false);
          ++it3;
      }
  
      LogPrintf("CBudgetManager::NewBlock - vecImmatureBudgetProposals cleanup - size: %d\n", vecImmatureBudgetProposals.size());
      std::vector<CBudgetProposalBroadcast>::iterator it4 = vecImmatureBudgetProposals.begin();
      while (it4 != vecImmatureBudgetProposals.end()) {
          std::string strError = "";
          int nConf = 0;
          if (!IsBudgetCollateralValid((*it4).nFeeTXHash, (*it4).GetHash(), strError, (*it4).nTime, nConf)) {
              ++it4;
              continue;
          }
  
          if (!(*it4).IsValid(strError)) {
              LogPrintf("mprop (immature) - invalid budget proposal - %s\n", strError);
              it4 = vecImmatureBudgetProposals.erase(it4);
              continue;
          }
  
          CBudgetProposal budgetProposal((*it4));
          if (AddProposal(budgetProposal)) {
              (*it4).Relay();
          }
  
          LogPrintf("mprop (immature) - new budget - %s\n", (*it4).GetHash().ToString());
          it4 = vecImmatureBudgetProposals.erase(it4);
      }
  
      LogPrintf("CBudgetManager::NewBlock - vecImmatureFinalizedBudgets cleanup - size: %d\n", vecImmatureFinalizedBudgets.size());
      std::vector<CFinalizedBudgetBroadcast>::iterator it5 = vecImmatureFinalizedBudgets.begin();
      while (it5 != vecImmatureFinalizedBudgets.end()) {
          std::string strError = "";
          int nConf = 0;
          if (!IsBudgetCollateralValid((*it5).nFeeTXHash, (*it5).GetHash(), strError, (*it5).nTime, nConf)) {
              ++it5;
              continue;
          }
  
          if (!(*it5).IsValid(strError)) {
              LogPrintf("fbs (immature) - invalid finalized budget - %s\n", strError);
              it5 = vecImmatureFinalizedBudgets.erase(it5);
              continue;
          }
  
          LogPrintf("fbs (immature) - new finalized budget - %s\n", (*it5).GetHash().ToString());
  
          CFinalizedBudget finalizedBudget((*it5));
          if (AddFinalizedBudget(finalizedBudget)) {
              (*it5).Relay();
          }
  
          it5 = vecImmatureFinalizedBudgets.erase(it5);
      }
      LogPrintf("CBudgetManager::NewBlock - PASSED\n");
  }
  
  void CBudgetManager::ProcessMessage(CNode* pfrom, std::string& strCommand, CDataStream& vRecv)
  {
      // lite mode is not supported
      if (fLiteMode) return;
      if (!masternodeSync.IsBlockchainSynced()) return;
  
      LOCK(cs_budget);
  
      if (strCommand == "mnvs") { //Masternode vote sync
          uint256 nProp;
          vRecv >> nProp;
  
          if (Params().NetworkID() == CBaseChainParams::MAIN) {
              if (nProp == 0) {
                  if (pfrom->HasFulfilledRequest("mnvs")) {
                      LogPrintf("mnvs - peer already asked me for the list\n");
                      return;
                  }
                  pfrom->FulfilledRequest("mnvs");
              }
          }
  
          Sync(pfrom, nProp);
          LogPrint("mnbudget", "mnvs - Sent Masternode votes to peer %i\n", pfrom->GetId());
      }
  
      if (strCommand == "mprop") { //Masternode Proposal
          CBudgetProposalBroadcast budgetProposalBroadcast;
          vRecv >> budgetProposalBroadcast;
  
          if (mapSeenMasternodeBudgetProposals.count(budgetProposalBroadcast.GetHash())) {
              masternodeSync.AddedBudgetItem(budgetProposalBroadcast.GetHash());
              return;
          }
  
          std::string strError = "";
          int nConf = 0;
          if (!IsBudgetCollateralValid(budgetProposalBroadcast.nFeeTXHash, budgetProposalBroadcast.GetHash(), strError, budgetProposalBroadcast.nTime, nConf)) {
              LogPrintf("Proposal FeeTX is not valid - %s - %s\n", budgetProposalBroadcast.nFeeTXHash.ToString(), strError);
              if (nConf >= 1) vecImmatureBudgetProposals.push_back(budgetProposalBroadcast);
              return;
          }
  
          mapSeenMasternodeBudgetProposals.insert(make_pair(budgetProposalBroadcast.GetHash(), budgetProposalBroadcast));
  
          if (!budgetProposalBroadcast.IsValid(strError)) {
              LogPrintf("mprop - invalid budget proposal - %s\n", strError);
              return;
          }
  
          CBudgetProposal budgetProposal(budgetProposalBroadcast);
          if (AddProposal(budgetProposal)) {
              budgetProposalBroadcast.Relay();
          }
          masternodeSync.AddedBudgetItem(budgetProposalBroadcast.GetHash());
  
          LogPrintf("mprop - new budget - %s\n", budgetProposalBroadcast.GetHash().ToString());
  
          //We might have active votes for this proposal that are valid now
          CheckOrphanVotes();
      }
  
      if (strCommand == "mvote") { //Masternode Vote
          CBudgetVote vote;
          vRecv >> vote;
          vote.fValid = true;
  
          if (mapSeenMasternodeBudgetVotes.count(vote.GetHash())) {
              masternodeSync.AddedBudgetItem(vote.GetHash());
              return;
          }
  
          CMasternode* pmn = mnodeman.Find(vote.vin);
          if (pmn == NULL) {
              LogPrintf("mvote - unknown masternode - vin: %s\n", vote.vin.prevout.hash.ToString());
              mnodeman.AskForMN(pfrom, vote.vin);
              return;
          }
  
  
          mapSeenMasternodeBudgetVotes.insert(make_pair(vote.GetHash(), vote));
          if (!vote.SignatureValid(true)) {
              LogPrintf("mvote - signature invalid\n");
              // it could just be a non-synced masternode
              mnodeman.AskForMN(pfrom, vote.vin);
              return;
          }
  
          std::string strError = "";
          if (UpdateProposal(vote, pfrom, strError)) {
              vote.Relay();
              masternodeSync.AddedBudgetItem(vote.GetHash());
          }
  
          LogPrint("mnbudget", "mvote - new budget vote - %s\n", vote.GetHash().ToString());
      }
  
      if (strCommand == "fbs") { //Finalized Budget Suggestion
          CFinalizedBudgetBroadcast finalizedBudgetBroadcast;
          vRecv >> finalizedBudgetBroadcast;
  
          if (mapSeenFinalizedBudgets.count(finalizedBudgetBroadcast.GetHash())) {
              masternodeSync.AddedBudgetItem(finalizedBudgetBroadcast.GetHash());
              return;
          }
  
          std::string strError = "";
          int nConf = 0;
          if (!IsBudgetCollateralValid(finalizedBudgetBroadcast.nFeeTXHash, finalizedBudgetBroadcast.GetHash(), strError, finalizedBudgetBroadcast.nTime, nConf)) {
              LogPrintf("Finalized Budget FeeTX is not valid - %s - %s\n", finalizedBudgetBroadcast.nFeeTXHash.ToString(), strError);
  
              if (nConf >= 1) vecImmatureFinalizedBudgets.push_back(finalizedBudgetBroadcast);
              return;
          }
  
          mapSeenFinalizedBudgets.insert(make_pair(finalizedBudgetBroadcast.GetHash(), finalizedBudgetBroadcast));
  
          if (!finalizedBudgetBroadcast.IsValid(strError)) {
              LogPrintf("fbs - invalid finalized budget - %s\n", strError);
              return;
          }
  
          LogPrintf("fbs - new finalized budget - %s\n", finalizedBudgetBroadcast.GetHash().ToString());
  
          CFinalizedBudget finalizedBudget(finalizedBudgetBroadcast);
          if (AddFinalizedBudget(finalizedBudget)) {
              finalizedBudgetBroadcast.Relay();
          }
          masternodeSync.AddedBudgetItem(finalizedBudgetBroadcast.GetHash());
  
          //we might have active votes for this budget that are now valid
          CheckOrphanVotes();
      }
  
      if (strCommand == "fbvote") { //Finalized Budget Vote
          CFinalizedBudgetVote vote;
          vRecv >> vote;
          vote.fValid = true;
  
          if (mapSeenFinalizedBudgetVotes.count(vote.GetHash())) {
              masternodeSync.AddedBudgetItem(vote.GetHash());
              return;
          }
  
          CMasternode* pmn = mnodeman.Find(vote.vin);
          if (pmn == NULL) {
              LogPrint("mnbudget", "fbvote - unknown masternode - vin: %s\n", vote.vin.prevout.hash.ToString());
              mnodeman.AskForMN(pfrom, vote.vin);
              return;
          }
  
          mapSeenFinalizedBudgetVotes.insert(make_pair(vote.GetHash(), vote));
          if (!vote.SignatureValid(true)) {
              LogPrintf("fbvote - signature invalid\n");
              // it could just be a non-synced masternode
              mnodeman.AskForMN(pfrom, vote.vin);
              return;
          }
  
          std::string strError = "";
          if (UpdateFinalizedBudget(vote, pfrom, strError)) {
              vote.Relay();
              masternodeSync.AddedBudgetItem(vote.GetHash());
  
              LogPrintf("fbvote - new finalized budget vote - %s\n", vote.GetHash().ToString());
          } else {
              LogPrintf("fbvote - rejected finalized budget vote - %s - %s\n", vote.GetHash().ToString(), strError);
          }
      }
  }
  
  bool CBudgetManager::PropExists(uint256 nHash)
  {
      if (mapProposals.count(nHash)) return true;
      return false;
  }
  
  //mark that a full sync is needed
  void CBudgetManager::ResetSync()
  {
      LOCK(cs);
  
  
      std::map<uint256, CBudgetProposalBroadcast>::iterator it1 = mapSeenMasternodeBudgetProposals.begin();
      while (it1 != mapSeenMasternodeBudgetProposals.end()) {
          CBudgetProposal* pbudgetProposal = FindProposal((*it1).first);
          if (pbudgetProposal && pbudgetProposal->fValid) {
              //mark votes
              std::map<uint256, CBudgetVote>::iterator it2 = pbudgetProposal->mapVotes.begin();
              while (it2 != pbudgetProposal->mapVotes.end()) {
                  (*it2).second.fSynced = false;
                  ++it2;
              }
          }
          ++it1;
      }
  
      std::map<uint256, CFinalizedBudgetBroadcast>::iterator it3 = mapSeenFinalizedBudgets.begin();
      while (it3 != mapSeenFinalizedBudgets.end()) {
          CFinalizedBudget* pfinalizedBudget = FindFinalizedBudget((*it3).first);
          if (pfinalizedBudget && pfinalizedBudget->fValid) {
              //send votes
              std::map<uint256, CFinalizedBudgetVote>::iterator it4 = pfinalizedBudget->mapVotes.begin();
              while (it4 != pfinalizedBudget->mapVotes.end()) {
                  (*it4).second.fSynced = false;
                  ++it4;
              }
          }
          ++it3;
      }
  }
  
  void CBudgetManager::MarkSynced()
  {
      LOCK(cs);
  
      /*
          Mark that we've sent all valid items
      */
  
      std::map<uint256, CBudgetProposalBroadcast>::iterator it1 = mapSeenMasternodeBudgetProposals.begin();
      while (it1 != mapSeenMasternodeBudgetProposals.end()) {
          CBudgetProposal* pbudgetProposal = FindProposal((*it1).first);
          if (pbudgetProposal && pbudgetProposal->fValid) {
              //mark votes
              std::map<uint256, CBudgetVote>::iterator it2 = pbudgetProposal->mapVotes.begin();
              while (it2 != pbudgetProposal->mapVotes.end()) {
                  if ((*it2).second.fValid)
                      (*it2).second.fSynced = true;
                  ++it2;
              }
          }
          ++it1;
      }
  
      std::map<uint256, CFinalizedBudgetBroadcast>::iterator it3 = mapSeenFinalizedBudgets.begin();
      while (it3 != mapSeenFinalizedBudgets.end()) {
          CFinalizedBudget* pfinalizedBudget = FindFinalizedBudget((*it3).first);
          if (pfinalizedBudget && pfinalizedBudget->fValid) {
              //mark votes
              std::map<uint256, CFinalizedBudgetVote>::iterator it4 = pfinalizedBudget->mapVotes.begin();
              while (it4 != pfinalizedBudget->mapVotes.end()) {
                  if ((*it4).second.fValid)
                      (*it4).second.fSynced = true;
                  ++it4;
              }
          }
          ++it3;
      }
  }
  
  
  void CBudgetManager::Sync(CNode* pfrom, uint256 nProp, bool fPartial)
  {
      LOCK(cs);
  
      /*
          Sync with a client on the network
  
          --
  
          This code checks each of the hash maps for all known budget proposals and finalized budget proposals, then checks them against the
          budget object to see if they're OK. If all checks pass, we'll send it to the peer.
  
      */
  
      int nInvCount = 0;
  
      std::map<uint256, CBudgetProposalBroadcast>::iterator it1 = mapSeenMasternodeBudgetProposals.begin();
      while (it1 != mapSeenMasternodeBudgetProposals.end()) {
          CBudgetProposal* pbudgetProposal = FindProposal((*it1).first);
          if (pbudgetProposal && pbudgetProposal->fValid && (nProp == 0 || (*it1).first == nProp)) {
              pfrom->PushInventory(CInv(MSG_BUDGET_PROPOSAL, (*it1).second.GetHash()));
              nInvCount++;
  
              //send votes
              std::map<uint256, CBudgetVote>::iterator it2 = pbudgetProposal->mapVotes.begin();
              while (it2 != pbudgetProposal->mapVotes.end()) {
                  if ((*it2).second.fValid) {
                      if ((fPartial && !(*it2).second.fSynced) || !fPartial) {
                          pfrom->PushInventory(CInv(MSG_BUDGET_VOTE, (*it2).second.GetHash()));
                          nInvCount++;
                      }
                  }
                  ++it2;
              }
          }
          ++it1;
      }
  
      pfrom->PushMessage("ssc", MASTERNODE_SYNC_BUDGET_PROP, nInvCount);
  
      LogPrint("mnbudget", "CBudgetManager::Sync - sent %d items\n", nInvCount);
  
      nInvCount = 0;
  
      std::map<uint256, CFinalizedBudgetBroadcast>::iterator it3 = mapSeenFinalizedBudgets.begin();
      while (it3 != mapSeenFinalizedBudgets.end()) {
          CFinalizedBudget* pfinalizedBudget = FindFinalizedBudget((*it3).first);
          if (pfinalizedBudget && pfinalizedBudget->fValid && (nProp == 0 || (*it3).first == nProp)) {
              pfrom->PushInventory(CInv(MSG_BUDGET_FINALIZED, (*it3).second.GetHash()));
              nInvCount++;
  
              //send votes
              std::map<uint256, CFinalizedBudgetVote>::iterator it4 = pfinalizedBudget->mapVotes.begin();
              while (it4 != pfinalizedBudget->mapVotes.end()) {
                  if ((*it4).second.fValid) {
                      if ((fPartial && !(*it4).second.fSynced) || !fPartial) {
                          pfrom->PushInventory(CInv(MSG_BUDGET_FINALIZED_VOTE, (*it4).second.GetHash()));
                          nInvCount++;
                      }
                  }
                  ++it4;
              }
          }
          ++it3;
      }
  
      pfrom->PushMessage("ssc", MASTERNODE_SYNC_BUDGET_FIN, nInvCount);
      LogPrint("mnbudget", "CBudgetManager::Sync - sent %d items\n", nInvCount);
  }
  
  bool CBudgetManager::UpdateProposal(CBudgetVote& vote, CNode* pfrom, std::string& strError)
  {
      LOCK(cs);
  
      if (!mapProposals.count(vote.nProposalHash)) {
          if (pfrom) {
              // only ask for missing items after our syncing process is complete --
              //   otherwise we'll think a full sync succeeded when they return a result
              if (!masternodeSync.IsSynced()) return false;
  
              LogPrintf("CBudgetManager::UpdateProposal - Unknown proposal %d, asking for source proposal\n", vote.nProposalHash.ToString());
              mapOrphanMasternodeBudgetVotes[vote.nProposalHash] = vote;
  
              if (!askedForSourceProposalOrBudget.count(vote.nProposalHash)) {
                  pfrom->PushMessage("mnvs", vote.nProposalHash);
                  askedForSourceProposalOrBudget[vote.nProposalHash] = GetTime();
              }
          }
  
          strError = "Proposal not found!";
          return false;
      }
  
  
      return mapProposals[vote.nProposalHash].AddOrUpdateVote(vote, strError);
  }
  
  bool CBudgetManager::UpdateFinalizedBudget(CFinalizedBudgetVote& vote, CNode* pfrom, std::string& strError)
  {
      LOCK(cs);
  
      if (!mapFinalizedBudgets.count(vote.nBudgetHash)) {
          if (pfrom) {
              // only ask for missing items after our syncing process is complete --
              //   otherwise we'll think a full sync succeeded when they return a result
              if (!masternodeSync.IsSynced()) return false;
  
              LogPrintf("CBudgetManager::UpdateFinalizedBudget - Unknown Finalized Proposal %s, asking for source budget\n", vote.nBudgetHash.ToString());
              mapOrphanFinalizedBudgetVotes[vote.nBudgetHash] = vote;
  
              if (!askedForSourceProposalOrBudget.count(vote.nBudgetHash)) {
                  pfrom->PushMessage("mnvs", vote.nBudgetHash);
                  askedForSourceProposalOrBudget[vote.nBudgetHash] = GetTime();
              }
          }
  
          strError = "Finalized Budget not found!";
          return false;
      }
  
      return mapFinalizedBudgets[vote.nBudgetHash].AddOrUpdateVote(vote, strError);
  }
  
  CBudgetProposal::CBudgetProposal()
  {
      strProposalName = "unknown";
      nBlockStart = 0;
      nBlockEnd = 0;
      nAmount = 0;
      nTime = 0;
      fValid = true;
  }
  
  CBudgetProposal::CBudgetProposal(std::string strProposalNameIn, std::string strURLIn, int nBlockStartIn, int nBlockEndIn, CScript addressIn, CAmount nAmountIn, uint256 nFeeTXHashIn)
  {
      strProposalName = strProposalNameIn;
      strURL = strURLIn;
      nBlockStart = nBlockStartIn;
      nBlockEnd = nBlockEndIn;
      address = addressIn;
      nAmount = nAmountIn;
      nFeeTXHash = nFeeTXHashIn;
      fValid = true;
  }
  
  CBudgetProposal::CBudgetProposal(const CBudgetProposal& other)
  {
      strProposalName = other.strProposalName;
      strURL = other.strURL;
      nBlockStart = other.nBlockStart;
      nBlockEnd = other.nBlockEnd;
      address = other.address;
      nAmount = other.nAmount;
      nTime = other.nTime;
      nFeeTXHash = other.nFeeTXHash;
      mapVotes = other.mapVotes;
      fValid = true;
  }
  
  bool CBudgetProposal::IsValid(std::string& strError, bool fCheckCollateral)
  {
      if (GetNays() - GetYeas() > mnodeman.CountEnabled(ActiveProtocol()) / 10) {
          strError = "Active removal";
          return false;
      }
  
      if (nBlockStart < 0) {
          strError = "Invalid Proposal";
          return false;
      }
  
      if (nBlockEnd < nBlockStart) {
          strError = "Invalid nBlockEnd (end before start)";
          return false;
      }
  
      if (nAmount < 10 * COIN) {
          strError = "Invalid nAmount";
          return false;
      }
  
      if (address == CScript()) {
          strError = "Invalid Payment Address";
          return false;
      }
  
      if (fCheckCollateral) {
          int nConf = 0;
          if (!IsBudgetCollateralValid(nFeeTXHash, GetHash(), strError, nTime, nConf)) {
              strError = "Invalid collateral";
              return false;
          }
      }
  
      /*
          TODO: There might be an issue with multisig in the coinbase on mainnet, we will add support for it in a future release.
      */
      if (address.IsPayToScriptHash()) {
          strError = "Multisig is not currently supported.";
          return false;
      }
  
      //if proposal doesn't gain traction within 2 weeks, remove it
      // nTime not being saved correctly
      // -- TODO: We should keep track of the last time the proposal was valid, if it's invalid for 2 weeks, erase it
      // if(nTime + (60*60*24*2) < GetAdjustedTime()) {
      //     if(GetYeas()-GetNays() < (mnodeman.CountEnabled(ActiveProtocol())/10)) {
      //         strError = "Not enough support";
      //         return false;
      //     }
      // }
  
      //can only pay out 10% of the possible coins (min value of coins)
      if (nAmount > budget.GetTotalBudget(nBlockStart)) {
          strError = "Payment more than max";
          return false;
      }
  
      CBlockIndex* pindexPrev = chainActive.Tip();
      if (pindexPrev == NULL) {
          strError = "Tip is NULL";
          return true;
      }
  
      if (GetBlockEnd() < pindexPrev->nHeight - GetBudgetPaymentCycleBlocks() / 2) {
          strError = "Invalid nBlockEnd (end too early)";
          return false;
      }
  
      return true;
  }
  
  bool CBudgetProposal::AddOrUpdateVote(CBudgetVote& vote, std::string& strError)
  {
      LOCK(cs);
  
      uint256 hash = vote.vin.prevout.GetHash();
  
      if (mapVotes.count(hash)) {
          if (mapVotes[hash].nTime > vote.nTime) {
              strError = strprintf("new vote older than existing vote - %s\n", vote.GetHash().ToString());
              LogPrint("mnbudget", "CBudgetProposal::AddOrUpdateVote - %s\n", strError);
              return false;
          }
          if (vote.nTime - mapVotes[hash].nTime < BUDGET_VOTE_UPDATE_MIN) {
              strError = strprintf("time between votes is too soon - %s - %lli\n", vote.GetHash().ToString(), vote.nTime - mapVotes[hash].nTime);
              LogPrint("mnbudget", "CBudgetProposal::AddOrUpdateVote - %s\n", strError);
              return false;
          }
      }
  
      if (vote.nTime > GetTime() + (60 * 60)) {
          strError = strprintf("new vote is too far ahead of current time - %s - nTime %lli - Max Time %lli\n", vote.GetHash().ToString(), vote.nTime, GetTime() + (60 * 60));
          LogPrint("mnbudget", "CBudgetProposal::AddOrUpdateVote - %s\n", strError);
          return false;
      }
  
      mapVotes[hash] = vote;
      return true;
  }
  
  // If masternode voted for a proposal, but is now invalid -- remove the vote
  void CBudgetProposal::CleanAndRemove(bool fSignatureCheck)
  {
      std::map<uint256, CBudgetVote>::iterator it = mapVotes.begin();
  
      while (it != mapVotes.end()) {
          (*it).second.fValid = (*it).second.SignatureValid(fSignatureCheck);
          ++it;
      }
  }
  
  double CBudgetProposal::GetRatio()
  {
      int yeas = 0;
      int nays = 0;
  
      std::map<uint256, CBudgetVote>::iterator it = mapVotes.begin();
  
      while (it != mapVotes.end()) {
          if ((*it).second.nVote == VOTE_YES) yeas++;
          if ((*it).second.nVote == VOTE_NO) nays++;
          ++it;
      }
  
      if (yeas + nays == 0) return 0.0f;
  
      return ((double)(yeas) / (double)(yeas + nays));
  }
  
  int CBudgetProposal::GetYeas()
  {
      int ret = 0;
  
      std::map<uint256, CBudgetVote>::iterator it = mapVotes.begin();
      while (it != mapVotes.end()) {
          if ((*it).second.nVote == VOTE_YES && (*it).second.fValid) ret++;
          ++it;
      }
  
      return ret;
  }
  
  int CBudgetProposal::GetNays()
  {
      int ret = 0;
  
      std::map<uint256, CBudgetVote>::iterator it = mapVotes.begin();
      while (it != mapVotes.end()) {
          if ((*it).second.nVote == VOTE_NO && (*it).second.fValid) ret++;
          ++it;
      }
  
      return ret;
  }
  
  int CBudgetProposal::GetAbstains()
  {
      int ret = 0;
  
      std::map<uint256, CBudgetVote>::iterator it = mapVotes.begin();
      while (it != mapVotes.end()) {
          if ((*it).second.nVote == VOTE_ABSTAIN && (*it).second.fValid) ret++;
          ++it;
      }
  
      return ret;
  }
  
  int CBudgetProposal::GetBlockStartCycle()
  {
      //end block is half way through the next cycle (so the proposal will be removed much after the payment is sent)
  
      return nBlockStart - nBlockStart % GetBudgetPaymentCycleBlocks();
  }
  
  int CBudgetProposal::GetBlockCurrentCycle()
  {
      CBlockIndex* pindexPrev = chainActive.Tip();
      if (pindexPrev == NULL) return -1;
  
      if (pindexPrev->nHeight >= GetBlockEndCycle()) return -1;
  
      return pindexPrev->nHeight - pindexPrev->nHeight % GetBudgetPaymentCycleBlocks();
  }
  
  int CBudgetProposal::GetBlockEndCycle()
  {
      //end block is half way through the next cycle (so the proposal will be removed much after the payment is sent)
  
      return nBlockEnd - GetBudgetPaymentCycleBlocks() / 2;
  }
  
  int CBudgetProposal::GetTotalPaymentCount()
  {
      return (GetBlockEndCycle() - GetBlockStartCycle()) / GetBudgetPaymentCycleBlocks();
  }
  
  int CBudgetProposal::GetRemainingPaymentCount()
  {
      // If this budget starts in the future, this value will be wrong
      int nPayments = (GetBlockEndCycle() - GetBlockCurrentCycle()) / GetBudgetPaymentCycleBlocks() - 1;
      // Take the lowest value
      return std::min(nPayments, GetTotalPaymentCount());
  }
  
  CBudgetProposalBroadcast::CBudgetProposalBroadcast(std::string strProposalNameIn, std::string strURLIn, int nPaymentCount, CScript addressIn, CAmount nAmountIn, int nBlockStartIn, uint256 nFeeTXHashIn)
  {
      strProposalName = strProposalNameIn;
      strURL = strURLIn;
  
      nBlockStart = nBlockStartIn;
  
      int nCycleStart = nBlockStart - nBlockStart % GetBudgetPaymentCycleBlocks();
      //calculate the end of the cycle for this vote, add half a cycle (vote will be deleted after that block)
      nBlockEnd = nCycleStart + GetBudgetPaymentCycleBlocks() * nPaymentCount + GetBudgetPaymentCycleBlocks() / 2;
  
      address = addressIn;
      nAmount = nAmountIn;
  
      nFeeTXHash = nFeeTXHashIn;
  }
  
  void CBudgetProposalBroadcast::Relay()
  {
      CInv inv(MSG_BUDGET_PROPOSAL, GetHash());
      RelayInv(inv);
  }
  
  CBudgetVote::CBudgetVote()
  {
      vin = CTxIn();
      nProposalHash = 0;
      nVote = VOTE_ABSTAIN;
      nTime = 0;
      fValid = true;
      fSynced = false;
  }
  
  CBudgetVote::CBudgetVote(CTxIn vinIn, uint256 nProposalHashIn, int nVoteIn)
  {
      vin = vinIn;
      nProposalHash = nProposalHashIn;
      nVote = nVoteIn;
      nTime = GetAdjustedTime();
      fValid = true;
      fSynced = false;
  }
  
  void CBudgetVote::Relay()
  {
      CInv inv(MSG_BUDGET_VOTE, GetHash());
      RelayInv(inv);
  }
  
  bool CBudgetVote::Sign(CKey& keyMasternode, CPubKey& pubKeyMasternode)
  {
      // Choose coins to use
      CPubKey pubKeyCollateralAddress;
      CKey keyCollateralAddress;
  
      std::string errorMessage;
      std::string strMessage = vin.prevout.ToStringShort() + nProposalHash.ToString() + boost::lexical_cast<std::string>(nVote) + boost::lexical_cast<std::string>(nTime);
  
      if (!obfuScationSigner.SignMessage(strMessage, errorMessage, vchSig, keyMasternode)) {
          LogPrintf("CBudgetVote::Sign - Error upon calling SignMessage");
          return false;
      }
  
      if (!obfuScationSigner.VerifyMessage(pubKeyMasternode, vchSig, strMessage, errorMessage)) {
          LogPrintf("CBudgetVote::Sign - Error upon calling VerifyMessage");
          return false;
      }
  
      return true;
  }
  
  bool CBudgetVote::SignatureValid(bool fSignatureCheck)
  {
      std::string errorMessage;
      std::string strMessage = vin.prevout.ToStringShort() + nProposalHash.ToString() + boost::lexical_cast<std::string>(nVote) + boost::lexical_cast<std::string>(nTime);
  
      CMasternode* pmn = mnodeman.Find(vin);
  
      if (pmn == NULL) {
          if (fDebug){
              LogPrintf("CBudgetVote::SignatureValid() - Unknown Masternode - %s\n", vin.prevout.hash.ToString());
          }
          return false;
      }
  
      if (!fSignatureCheck) return true;
  
      if (!obfuScationSigner.VerifyMessage(pmn->pubKeyMasternode, vchSig, strMessage, errorMessage)) {
          LogPrintf("CBudgetVote::SignatureValid() - Verify message failed\n");
          return false;
      }
  
      return true;
  }
  
  CFinalizedBudget::CFinalizedBudget()
  {
      strBudgetName = "";
      nBlockStart = 0;
      vecBudgetPayments.clear();
      mapVotes.clear();
      nFeeTXHash = 0;
      nTime = 0;
      fValid = true;
      fAutoChecked = false;
  }
  
  CFinalizedBudget::CFinalizedBudget(const CFinalizedBudget& other)
  {
      strBudgetName = other.strBudgetName;
      nBlockStart = other.nBlockStart;
      vecBudgetPayments = other.vecBudgetPayments;
      mapVotes = other.mapVotes;
      nFeeTXHash = other.nFeeTXHash;
      nTime = other.nTime;
      fValid = true;
      fAutoChecked = false;
  }
  
  bool CFinalizedBudget::AddOrUpdateVote(CFinalizedBudgetVote& vote, std::string& strError)
  {
      LOCK(cs);
  
      uint256 hash = vote.vin.prevout.GetHash();
      if (mapVotes.count(hash)) {
          if (mapVotes[hash].nTime > vote.nTime) {
              strError = strprintf("new vote older than existing vote - %s\n", vote.GetHash().ToString());
              LogPrint("mnbudget", "CFinalizedBudget::AddOrUpdateVote - %s\n", strError);
              return false;
          }
          if (vote.nTime - mapVotes[hash].nTime < BUDGET_VOTE_UPDATE_MIN) {
              strError = strprintf("time between votes is too soon - %s - %lli\n", vote.GetHash().ToString(), vote.nTime - mapVotes[hash].nTime);
              LogPrint("mnbudget", "CFinalizedBudget::AddOrUpdateVote - %s\n", strError);
              return false;
          }
      }
  
      if (vote.nTime > GetTime() + (60 * 60)) {
          strError = strprintf("new vote is too far ahead of current time - %s - nTime %lli - Max Time %lli\n", vote.GetHash().ToString(), vote.nTime, GetTime() + (60 * 60));
          LogPrint("mnbudget", "CFinalizedBudget::AddOrUpdateVote - %s\n", strError);
          return false;
      }
  
      mapVotes[hash] = vote;
      return true;
  }
  
  //evaluate if we should vote for this. Masternode only
  void CFinalizedBudget::AutoCheck()
  {
      LOCK(cs);
  
      CBlockIndex* pindexPrev = chainActive.Tip();
      if (!pindexPrev) return;
  
      LogPrintf("CFinalizedBudget::AutoCheck - %lli - %d\n", pindexPrev->nHeight, fAutoChecked);
  
      if (!fMasterNode || fAutoChecked) return;
  
      //do this 1 in 4 blocks -- spread out the voting activity on mainnet
      // -- this function is only called every fourteenth block, so this is really 1 in 56 blocks
      if (Params().NetworkID() == CBaseChainParams::MAIN && rand() % 4 != 0) {
          LogPrintf("CFinalizedBudget::AutoCheck - waiting\n");
          return;
      }
  
      fAutoChecked = true; //we only need to check this once
  
  
      if (strBudgetMode == "auto") //only vote for exact matches
      {
          std::vector<CBudgetProposal*> vBudgetProposals = budget.GetBudget();
  
  
          for (unsigned int i = 0; i < vecBudgetPayments.size(); i++) {
              LogPrintf("CFinalizedBudget::AutoCheck - nProp %d %s\n", i, vecBudgetPayments[i].nProposalHash.ToString());
              LogPrintf("CFinalizedBudget::AutoCheck - Payee %d %s\n", i, vecBudgetPayments[i].payee.ToString());
              LogPrintf("CFinalizedBudget::AutoCheck - nAmount %d %lli\n", i, vecBudgetPayments[i].nAmount);
          }
  
          for (unsigned int i = 0; i < vBudgetProposals.size(); i++) {
              LogPrintf("CFinalizedBudget::AutoCheck - nProp %d %s\n", i, vBudgetProposals[i]->GetHash().ToString());
              LogPrintf("CFinalizedBudget::AutoCheck - Payee %d %s\n", i, vBudgetProposals[i]->GetPayee().ToString());
              LogPrintf("CFinalizedBudget::AutoCheck - nAmount %d %lli\n", i, vBudgetProposals[i]->GetAmount());
          }
  
          if (vBudgetProposals.size() == 0) {
              LogPrintf("CFinalizedBudget::AutoCheck - Can't get Budget, aborting\n");
              return;
          }
  
          if (vBudgetProposals.size() != vecBudgetPayments.size()) {
              LogPrintf("CFinalizedBudget::AutoCheck - Budget length doesn't match\n");
              return;
          }
  
  
          for (unsigned int i = 0; i < vecBudgetPayments.size(); i++) {
              if (i > vBudgetProposals.size() - 1) {
                  LogPrintf("CFinalizedBudget::AutoCheck - Vector size mismatch, aborting\n");
                  return;
              }
  
              if (vecBudgetPayments[i].nProposalHash != vBudgetProposals[i]->GetHash()) {
                  LogPrintf("CFinalizedBudget::AutoCheck - item #%d doesn't match %s %s\n", i, vecBudgetPayments[i].nProposalHash.ToString(), vBudgetProposals[i]->GetHash().ToString());
                  return;
              }
  
              // if(vecBudgetPayments[i].payee != vBudgetProposals[i]->GetPayee()){ -- triggered with false positive
              if (vecBudgetPayments[i].payee.ToString() != vBudgetProposals[i]->GetPayee().ToString()) {
                  LogPrintf("CFinalizedBudget::AutoCheck - item #%d payee doesn't match %s %s\n", i, vecBudgetPayments[i].payee.ToString(), vBudgetProposals[i]->GetPayee().ToString());
                  return;
              }
  
              if (vecBudgetPayments[i].nAmount != vBudgetProposals[i]->GetAmount()) {
                  LogPrintf("CFinalizedBudget::AutoCheck - item #%d payee doesn't match %lli %lli\n", i, vecBudgetPayments[i].nAmount, vBudgetProposals[i]->GetAmount());
                  return;
              }
          }
  
          LogPrintf("CFinalizedBudget::AutoCheck - Finalized Budget Matches! Submitting Vote.\n");
          SubmitVote();
      }
  }
  // If masternode voted for a proposal, but is now invalid -- remove the vote
  void CFinalizedBudget::CleanAndRemove(bool fSignatureCheck)
  {
      std::map<uint256, CFinalizedBudgetVote>::iterator it = mapVotes.begin();
  
      while (it != mapVotes.end()) {
          (*it).second.fValid = (*it).second.SignatureValid(fSignatureCheck);
          ++it;
      }
  }
  
  
  CAmount CFinalizedBudget::GetTotalPayout()
  {
      CAmount ret = 0;
  
      for (unsigned int i = 0; i < vecBudgetPayments.size(); i++) {
          ret += vecBudgetPayments[i].nAmount;
      }
  
      return ret;
  }
  
  std::string CFinalizedBudget::GetProposals()
  {
      LOCK(cs);
      std::string ret = "";
  
      BOOST_FOREACH (CTxBudgetPayment& budgetPayment, vecBudgetPayments) {
          CBudgetProposal* pbudgetProposal = budget.FindProposal(budgetPayment.nProposalHash);
  
          std::string token = budgetPayment.nProposalHash.ToString();
  
          if (pbudgetProposal) token = pbudgetProposal->GetName();
          if (ret == "") {
              ret = token;
          } else {
              ret += "," + token;
          }
      }
      return ret;
  }
  
  std::string CFinalizedBudget::GetStatus()
  {
      std::string retBadHashes = "";
      std::string retBadPayeeOrAmount = "";
  
      for (int nBlockHeight = GetBlockStart(); nBlockHeight <= GetBlockEnd(); nBlockHeight++) {
          CTxBudgetPayment budgetPayment;
          if (!GetBudgetPaymentByBlock(nBlockHeight, budgetPayment)) {
              LogPrintf("CFinalizedBudget::GetStatus - Couldn't find budget payment for block %lld\n", nBlockHeight);
              continue;
          }
  
          CBudgetProposal* pbudgetProposal = budget.FindProposal(budgetPayment.nProposalHash);
          if (!pbudgetProposal) {
              if (retBadHashes == "") {
                  retBadHashes = "Unknown proposal hash! Check this proposal before voting" + budgetPayment.nProposalHash.ToString();
              } else {
                  retBadHashes += "," + budgetPayment.nProposalHash.ToString();
              }
          } else {
              if (pbudgetProposal->GetPayee() != budgetPayment.payee || pbudgetProposal->GetAmount() != budgetPayment.nAmount) {
                  if (retBadPayeeOrAmount == "") {
                      retBadPayeeOrAmount = "Budget payee/nAmount doesn't match our proposal! " + budgetPayment.nProposalHash.ToString();
                  } else {
                      retBadPayeeOrAmount += "," + budgetPayment.nProposalHash.ToString();
                  }
              }
          }
      }
  
      if (retBadHashes == "" && retBadPayeeOrAmount == "") return "OK";
  
      return retBadHashes + retBadPayeeOrAmount;
  }
  
  bool CFinalizedBudget::IsValid(std::string& strError, bool fCheckCollateral)
  {
      //must be the correct block for payment to happen (once a month)
      if (nBlockStart % GetBudgetPaymentCycleBlocks() != 0) {
          strError = "Invalid BlockStart";
          return false;
      }
      if (GetBlockEnd() - nBlockStart > 100) {
          strError = "Invalid BlockEnd";
          return false;
      }
      if ((int)vecBudgetPayments.size() > 100) {
          strError = "Invalid budget payments count (too many)";
          return false;
      }
      if (strBudgetName == "") {
          strError = "Invalid Budget Name";
          return false;
      }
      if (nBlockStart == 0) {
          strError = "Invalid BlockStart == 0";
          return false;
      }
      if (nFeeTXHash == 0) {
          strError = "Invalid FeeTx == 0";
          return false;
      }
  
      //can only pay out 10% of the possible coins (min value of coins)
      if (GetTotalPayout() > budget.GetTotalBudget(nBlockStart)) {
          strError = "Invalid Payout (more than max)";
          return false;
      }
  
      std::string strError2 = "";
      if (fCheckCollateral) {
          int nConf = 0;
          if (!IsBudgetCollateralValid(nFeeTXHash, GetHash(), strError2, nTime, nConf)) {
              {
                  strError = "Invalid Collateral : " + strError2;
                  return false;
              }
          }
      }
  
      //TODO: if N cycles old, invalid, invalid
  
      CBlockIndex* pindexPrev = chainActive.Tip();
      if (pindexPrev == NULL) return true;
  
      if (nBlockStart < pindexPrev->nHeight - 100) {
          strError = "Older than current blockHeight";
          return false;
      }
  
      return true;
  }
  
  bool CFinalizedBudget::IsTransactionValid(const CTransaction& txNew, int nBlockHeight)
  {
      int nCurrentBudgetPayment = nBlockHeight - GetBlockStart();
      if (nCurrentBudgetPayment < 0) {
          LogPrintf("CFinalizedBudget::IsTransactionValid - Invalid block - height: %d start: %d\n", nBlockHeight, GetBlockStart());
          return false;
      }
  
      if (nCurrentBudgetPayment > (int)vecBudgetPayments.size() - 1) {
          LogPrintf("CFinalizedBudget::IsTransactionValid - Invalid block - current budget payment: %d of %d\n", nCurrentBudgetPayment + 1, (int)vecBudgetPayments.size());
          return false;
      }
  
      bool found = false;
      BOOST_FOREACH (CTxOut out, txNew.vout) {
          if (vecBudgetPayments[nCurrentBudgetPayment].payee == out.scriptPubKey && vecBudgetPayments[nCurrentBudgetPayment].nAmount == out.nValue)
              found = true;
      }
      if (!found) {
          CTxDestination address1;
          ExtractDestination(vecBudgetPayments[nCurrentBudgetPayment].payee, address1);
          CBitcoinAddress address2(address1);
  
          LogPrintf("CFinalizedBudget::IsTransactionValid - Missing required payment - %s: %d\n", address2.ToString(), vecBudgetPayments[nCurrentBudgetPayment].nAmount);
      }
  
      return found;
  }
  
  void CFinalizedBudget::SubmitVote()
  {
      CPubKey pubKeyMasternode;
      CKey keyMasternode;
      std::string errorMessage;
  
      if (!obfuScationSigner.SetKey(strMasterNodePrivKey, errorMessage, keyMasternode, pubKeyMasternode)) {
          LogPrintf("CFinalizedBudget::SubmitVote - Error upon calling SetKey\n");
          return;
      }
  
      CFinalizedBudgetVote vote(activeMasternode.vin, GetHash());
      if (!vote.Sign(keyMasternode, pubKeyMasternode)) {
          LogPrintf("CFinalizedBudget::SubmitVote - Failure to sign.");
          return;
      }
  
      std::string strError = "";
      if (budget.UpdateFinalizedBudget(vote, NULL, strError)) {
          LogPrintf("CFinalizedBudget::SubmitVote  - new finalized budget vote - %s\n", vote.GetHash().ToString());
  
          budget.mapSeenFinalizedBudgetVotes.insert(make_pair(vote.GetHash(), vote));
          vote.Relay();
      } else {
          LogPrintf("CFinalizedBudget::SubmitVote : Error submitting vote - %s\n", strError);
      }
  }
  
  CFinalizedBudgetBroadcast::CFinalizedBudgetBroadcast()
  {
      strBudgetName = "";
      nBlockStart = 0;
      vecBudgetPayments.clear();
      mapVotes.clear();
      vchSig.clear();
      nFeeTXHash = 0;
  }
  
  CFinalizedBudgetBroadcast::CFinalizedBudgetBroadcast(const CFinalizedBudget& other)
  {
      strBudgetName = other.strBudgetName;
      nBlockStart = other.nBlockStart;
      BOOST_FOREACH (CTxBudgetPayment out, other.vecBudgetPayments)
          vecBudgetPayments.push_back(out);
      mapVotes = other.mapVotes;
      nFeeTXHash = other.nFeeTXHash;
  }
  
  CFinalizedBudgetBroadcast::CFinalizedBudgetBroadcast(std::string strBudgetNameIn, int nBlockStartIn, std::vector<CTxBudgetPayment> vecBudgetPaymentsIn, uint256 nFeeTXHashIn)
  {
      strBudgetName = strBudgetNameIn;
      nBlockStart = nBlockStartIn;
      BOOST_FOREACH (CTxBudgetPayment out, vecBudgetPaymentsIn)
          vecBudgetPayments.push_back(out);
      mapVotes.clear();
      nFeeTXHash = nFeeTXHashIn;
  }
  
  void CFinalizedBudgetBroadcast::Relay()
  {
      CInv inv(MSG_BUDGET_FINALIZED, GetHash());
      RelayInv(inv);
  }
  
  CFinalizedBudgetVote::CFinalizedBudgetVote()
  {
      vin = CTxIn();
      nBudgetHash = 0;
      nTime = 0;
      vchSig.clear();
      fValid = true;
      fSynced = false;
  }
  
  CFinalizedBudgetVote::CFinalizedBudgetVote(CTxIn vinIn, uint256 nBudgetHashIn)
  {
      vin = vinIn;
      nBudgetHash = nBudgetHashIn;
      nTime = GetAdjustedTime();
      vchSig.clear();
      fValid = true;
      fSynced = false;
  }
  
  void CFinalizedBudgetVote::Relay()
  {
      CInv inv(MSG_BUDGET_FINALIZED_VOTE, GetHash());
      RelayInv(inv);
  }
  
  bool CFinalizedBudgetVote::Sign(CKey& keyMasternode, CPubKey& pubKeyMasternode)
  {
      // Choose coins to use
      CPubKey pubKeyCollateralAddress;
      CKey keyCollateralAddress;
  
      std::string errorMessage;
      std::string strMessage = vin.prevout.ToStringShort() + nBudgetHash.ToString() + boost::lexical_cast<std::string>(nTime);
  
      if (!obfuScationSigner.SignMessage(strMessage, errorMessage, vchSig, keyMasternode)) {
          LogPrintf("CFinalizedBudgetVote::Sign - Error upon calling SignMessage");
          return false;
      }
  
      if (!obfuScationSigner.VerifyMessage(pubKeyMasternode, vchSig, strMessage, errorMessage)) {
          LogPrintf("CFinalizedBudgetVote::Sign - Error upon calling VerifyMessage");
          return false;
      }
  
      return true;
  }
  
  bool CFinalizedBudgetVote::SignatureValid(bool fSignatureCheck)
  {
      std::string errorMessage;
  
      std::string strMessage = vin.prevout.ToStringShort() + nBudgetHash.ToString() + boost::lexical_cast<std::string>(nTime);
  
      CMasternode* pmn = mnodeman.Find(vin);
  
      if (pmn == NULL) {
          LogPrintf("CFinalizedBudgetVote::SignatureValid() - Unknown Masternode\n");
          return false;
      }
  
      if (!fSignatureCheck) return true;
  
      if (!obfuScationSigner.VerifyMessage(pmn->pubKeyMasternode, vchSig, strMessage, errorMessage)) {
          LogPrintf("CFinalizedBudgetVote::SignatureValid() - Verify message failed\n");
          return false;
      }
  
      return true;
  }
  
  std::string CBudgetManager::ToString() const
  {
      std::ostringstream info;
  
      info << "Proposals: " << (int)mapProposals.size() << ", Budgets: " << (int)mapFinalizedBudgets.size() << ", Seen Budgets: " << (int)mapSeenMasternodeBudgetProposals.size() << ", Seen Budget Votes: " << (int)mapSeenMasternodeBudgetVotes.size() << ", Seen Final Budgets: " << (int)mapSeenFinalizedBudgets.size() << ", Seen Final Budget Votes: " << (int)mapSeenFinalizedBudgetVotes.size();
  
      return info.str();
  }
  