text: #include "transactiondesc.h"
  
  #include "guiutil.h"
  
  #include "main.h"
  #include "wallet.h"
  #include "txdb.h"
  #include "ui_interface.h"
  #include "base58.h"
  
  QString TransactionDesc::FormatValue(int64_t nValue, int nColor, int unit)
  {
      return BitcoinUnits::formatWithUnit(unit, nValue, nColor);
  }
  
  QString TransactionDesc::ValueMapToHTML(const std::map<int, int64_t> &valueMap)
  {
      QString strHTML;
      std::map<int, int64_t>::const_iterator it;
      for (it = valueMap.begin(); it != valueMap.end(); ++it)
      {
          if (it != valueMap.begin())
          {
              strHTML += ", ";
          }
          strHTML += FormatValue(it->second, it->first);
      }
      return strHTML;
  }
  
  
  QString TransactionDesc::TxInToHTML(const CTxIn &txin, const CWallet* wallet)
  {
      // individual tx do not affect any balance calculation
      static const bool fMultiSig = true;
  
      QString strHTML;
      if (wallet->IsMine(txin, fMultiSig))
      {
          std::pair<int, int64_t> deb = wallet->GetDebit(txin, fMultiSig);
          if (CheckColor(deb.first))
          {
              strHTML += "<b>" + tr("Debit") + ":</b> " +
                           FormatValue(-deb.second, deb.first) + "<br>";
          }
      }
      return strHTML;
  }
  
  
  QString TransactionDesc::TxOutToHTML(const CTxOut &txout, const CWallet* wallet)
  {
      // individual tx do not affect any representation
      static const bool fMultiSig = true;
  
      QString strHTML;
      if (wallet->IsMine(txout, fMultiSig))
      {
          std::pair<int, int64_t> cred= wallet->GetCredit(txout, fMultiSig);
          if (CheckColor(cred.first))
          {
              strHTML += "<b>" + tr("Credit") + ":</b> " +
                           FormatValue(cred.second, cred.first) + "<br>";
          }
      }
      return strHTML;
  }
  
  QString TransactionDesc::FormatTxStatus(const CWalletTx& wtx)
  {
      AssertLockHeld(cs_main);
      if (!wtx.IsFinal())
      {
          if (wtx.nLockTime < LOCKTIME_THRESHOLD)
              return tr("Open for %n block(s)", "", nBestHeight - wtx.nLockTime);
          else
              return tr("Open until %1").arg(GUIUtil::dateTimeStr(wtx.nLockTime));
      }
      else
      {
          int nDepth = wtx.GetDepthInMainChain();
          if (nDepth < 0)
              return tr("conflicted");
          else if (GetAdjustedTime() - wtx.nTimeReceived > 2 * 60 && wtx.GetRequestCount() == 0)
              return tr("%1/offline").arg(nDepth);
          else if (nDepth < 10)
              return tr("%1/unconfirmed").arg(nDepth);
          else
              return tr("%1 confirmations").arg(nDepth);
      }
  }
  
  QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx)
  {
      // individual tx do not affect any representation
      static const bool fMultiSig = true;
  
      QString strHTML;
  
      LOCK2(cs_main, wallet->cs_wallet);
      strHTML.reserve(4000);
      strHTML += "<html><font face='verdana, arial, helvetica, sans-serif'>";
  
      int64_t nTime = wtx.GetTxTime();
  
      std::map<int, int64_t> mapDebit, mapCredit, mapChange, mapNet;
      // debits
      wallet->FillDebits(wtx, mapDebit, fMultiSig);
      // credits (mature)
      wallet->FillMatures(wtx, mapCredit, fMultiSig);
  
      // nets (mature - debits)
      FillNets(mapDebit, mapCredit, mapNet);
  
      strHTML += "<b>" + tr("Status") + ":</b> " + FormatTxStatus(wtx);
      int nRequests = wtx.GetRequestCount();
      if (nRequests != -1)
      {
          if (nRequests == 0)
              strHTML += tr(", has not been successfully broadcast yet");
          else if (nRequests > 0)
              strHTML += tr(", broadcast through %n node(s)", "", nRequests);
      }
      strHTML += "<br>";
  
      strHTML += "<b>" + tr("Date") + ":</b> " + (nTime ? GUIUtil::dateTimeStr(nTime) : "") + "<br>";
  
      //
      // From
      //
      if (wtx.IsCoinBase() || wtx.IsCoinStake())
      {
          strHTML += "<b>" + tr("Source") + ":</b> " + tr("Generated") + "<br>";
      }
      else if (wtx.mapValue.count("from") && !wtx.mapValue["from"].empty())
      {
          // Online transaction
          strHTML += "<b>" + tr("From") + ":</b> " + GUIUtil::HtmlEscape(wtx.mapValue["from"]) + "<br>";
      }
      else
      {
  
          // Offline transaction
          if (ValueMapAllPositive(mapNet))
          {
              // Credit
              BOOST_FOREACH(const CTxOut& txout, wtx.vout)
              {
                  if (wallet->IsMine(txout, fMultiSig))
                  {
                      CTxDestination address;
                      if (ExtractDestination(txout.scriptPubKey, address) && IsMine(*wallet, address, fMultiSig))
                      {
                          if (wallet->mapAddressBook.count(address))
                          {
                              strHTML += "<b>" + tr("From") + ":</b> " + tr("unknown") + "<br>";
                              strHTML += "<b>" + tr("To") + ":</b> ";
                              CBitcoinAddress addr(address, txout.nColor);
                              strHTML += GUIUtil::HtmlEscape(addr.ToString());
                              if (!wallet->mapAddressBook[address].empty())
                                  strHTML += " (" + tr("own address") + ", " + tr("label") + ": " +
                                                 GUIUtil::HtmlEscape(wallet->mapAddressBook[address]) + ")";
                              else
                                  strHTML += " (" + tr("own address") + ")";
                              strHTML += "<br>";
                          }
                      }
                      break;
                  }
              }
          }
      }
  
      //
      // To
      //
      if (wtx.mapValue.count("to") && !wtx.mapValue["to"].empty())
      {
          // Online transaction
          std::string strAddress = wtx.mapValue["to"];
          strHTML += "<b>" + tr("To") + ":</b> ";
          CTxDestination dest = CBitcoinAddress(strAddress).Get();
          if (wallet->mapAddressBook.count(dest) && !wallet->mapAddressBook[dest].empty())
              strHTML += GUIUtil::HtmlEscape(wallet->mapAddressBook[dest]) + " ";
          strHTML += GUIUtil::HtmlEscape(strAddress) + "<br>";
      }
  
      //
      // Amount
      //
      // Coinbase was not mature
      if (wtx.IsCoinBase() && ValueMapAllZero(mapCredit))
      {
          //
          // Coinbase
          //
          strHTML += "<b>" + tr("Credit") + ":</b> ";
          if (wtx.IsInMainChain())
          {
              std::map<int, int64_t> mapUnmatured;
              wallet->FillCredits(wtx, mapUnmatured, fMultiSig);
              strHTML += ValueMapToHTML(mapUnmatured);
              strHTML += " (" + tr("matures in %n more block(s)", "", wtx.GetBlocksToMaturity()) + ")";
          }
          else
          {
              strHTML += "(" + tr("not accepted") + ")";
          }
          strHTML += "<br>";
      }
      else if (ValueMapAllPositive(mapNet))
      {
          //
          // Credit
          //
          strHTML += "<b>" + tr("Credit") + ":</b> " + ValueMapToHTML(mapNet) + "<br>";
      }
      else
      {
          bool fAllFromMe = true;
          BOOST_FOREACH(const CTxIn& txin, wtx.vin)
          {
              fAllFromMe = fAllFromMe && wallet->IsMine(txin, fMultiSig);
              if (!fAllFromMe)
              {
                  break;
              }
          }
  
          bool fAllToMe = true;
          BOOST_FOREACH(const CTxOut& txout, wtx.vout)
          {
              fAllToMe = fAllToMe && wallet->IsMine(txout, fMultiSig);
              if (!fAllToMe)
              {
                  break;
              }
          }
  
          if (fAllFromMe)
          {
              //
              // Debit
              //
              BOOST_FOREACH(const CTxOut& txout, wtx.vout)
              {
                  if (wallet->IsMine(txout, fMultiSig))
                  {
                      continue;
                  }
  
                  if (!wtx.mapValue.count("to") || wtx.mapValue["to"].empty())
                  {
                      // Offline transaction
                      CTxDestination address;
                      if (ExtractDestination(txout.scriptPubKey, address))
                      {
                          strHTML += "<b>" + tr("To") + ":</b> ";
                          if (wallet->mapAddressBook.count(address) && !wallet->mapAddressBook[address].empty())
                              strHTML += GUIUtil::HtmlEscape(wallet->mapAddressBook[address]) + " ";
                          strHTML += GUIUtil::HtmlEscape(CBitcoinAddress(address, txout.nColor).ToString());
                          strHTML += "<br>";
                      }
                  }
  
                  strHTML += "<b>" + tr("Debit") + ":</b> " +
                             BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, -txout.nValue, txout.nColor) + "<br>";
              }
  
               std::map<int, int64_t> mapFee, mapDebit, mapValuesOut;
  
              if (fAllToMe)
              {
                  // Payment to self
                  std::map<int, int64_t> mapChange, mapValue;
                  wallet->FillChange(wtx, mapChange);
                  FillNets(mapChange, mapCredit, mapValue);
                  FillNets(mapCredit, mapChange, mapDebit);
                  strHTML += "<b>" + tr("Debit") + ":</b> " + ValueMapToHTML(mapDebit) + "<br>";
                  strHTML += "<b>" + tr("Credit") + ":</b> " + ValueMapToHTML(mapValue) + "<br>";
              }
  
              wtx.FillValuesOut(mapValuesOut);
              wallet->FillDebits(wtx, mapDebit, fMultiSig);
              FillNets(mapValuesOut, mapDebit, mapFee);
              if (ValueMapAllPositive(mapFee))
              {
                  strHTML += "<b>" + tr("Transaction fee") + ":</b> " + ValueMapToHTML(mapFee) + "<br>";
              }
          }
          else
          {
              //
              // Mixed debit transaction
              //
              BOOST_FOREACH(const CTxIn& txin, wtx.vin)
              {
                  strHTML += TxInToHTML(txin, wallet);
              }
              BOOST_FOREACH(const CTxOut& txout, wtx.vout)
              {
                  strHTML += TxOutToHTML(txout, wallet);
              }
          }
      }
  
      strHTML += "<b>" + tr("Net amount") + ":</b> " + ValueMapToHTML(mapNet) + "<br>";
      strHTML += "<b>" + tr("Transaction ID") + ":</b> " + wtx.GetHash().ToString().c_str() + "<br>";
  
      //
      // Tx Comments: go in chain, expensive
      //
      if (!wtx.strTxComment.empty())
         strHTML += "<b>" + tr("Transaction comment") + ":</b><br>" + GUIUtil::HtmlEscape(wtx.strTxComment, true) + "<br>";
  
      //
      // Wallet Message: does not go in chain, free
      //
      if (wtx.mapValue.count("message") && !wtx.mapValue["message"].empty())
          strHTML += "<br><b>" + tr("Message") + ":</b><br>" + GUIUtil::HtmlEscape(wtx.mapValue["message"], true) + "<br>";
      if (wtx.mapValue.count("comment") && !wtx.mapValue["comment"].empty())
          strHTML += "<br><b>" + tr("Comment") + ":</b><br>" + GUIUtil::HtmlEscape(wtx.mapValue["comment"], true) + "<br>";
  
      char cbuf[256];
      for (int k = 0; k < (int) wtx.vout.size(); ++k)
      {
          snprintf(cbuf, sizeof(cbuf), "n_%d", k);
          if (wtx.mapValue.count(cbuf) && !wtx.mapValue[cbuf].empty())
               strHTML += "<br><b>" + tr(cbuf) + ":</b> " +
  	             GUIUtil::HtmlEscape(wtx.mapValue[cbuf], true) + "<br>";
      }
      
      strHTML += "<b>" + tr("Transaction ID") + ":</b> " + wtx.GetHash().ToString().c_str() + "<br>";
  
      if (wtx.IsCoinBase() || wtx.IsCoinStake())
          strHTML += "<br>" + tr("Generated coins must mature 60 blocks before they can be spent. When you generated this block, it was broadcast to the network to be added to the block chain. If it fails to get into the chain, its state will change to \"not accepted\" and it won't be spendable. This may occasionally happen if another node generates a block within a few seconds of yours.") + "<br>";
  
      //
      // Debug view
      //
      if (fDebug)
      {
          strHTML += "<hr><br>" + tr("Debug information") + "<br><br>";
          BOOST_FOREACH(const CTxIn& txin, wtx.vin)
          {
              strHTML += TxInToHTML(txin, wallet);
          }
          BOOST_FOREACH(const CTxOut& txout, wtx.vout)
          {
              strHTML += TxOutToHTML(txout, wallet);
          }
          strHTML += "<br><b>" + tr("Transaction") + ":</b><br>";
          strHTML += GUIUtil::HtmlEscape(wtx.ToString(), true);
  
          CTxDB txdb("r"); // To fetch source txouts
  
          strHTML += "<br><b>" + tr("Inputs") + ":</b>";
          strHTML += "<ul>";
  
          BOOST_FOREACH(const CTxIn& txin, wtx.vin)
          {
              COutPoint prevout = txin.prevout;
  
              CTransaction prev;
              if(txdb.ReadDiskTx(prevout.hash, prev))
              {
                  if (prevout.n < prev.vout.size())
                  {
                      strHTML += "<li>";
                      const CTxOut &vout = prev.vout[prevout.n];
                      CTxDestination address;
                      if (ExtractDestination(vout.scriptPubKey, address))
                      {
                          if (wallet->mapAddressBook.count(address) && !wallet->mapAddressBook[address].empty())
                              strHTML += GUIUtil::HtmlEscape(wallet->mapAddressBook[address]) + " ";
                          strHTML += QString::fromStdString(CBitcoinAddress(address, vout.nColor).ToString());
                      }
                      strHTML += " " + tr("Amount") + "=" +
                                   BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, vout.nValue, vout.nColor);
                      strHTML += " IsMine=" + (wallet->IsMine(vout, fMultiSig) ? tr("true") : tr("false")) + "</li>";
                  }
              }
          }
  
          strHTML += "</ul>";
      }
  
      strHTML += "</font></html>";
      return strHTML;
  }
  