Steam's Currency Trading

gistfile1.js

case 6:
      var template = null;
      var bAmountChanged = false;
      var newAmount = parseInt( event.amount );
      var oldAmount = parseInt( event.old_amount );

      if ( event.amount == 0 )
      {
        template = bTheirAction ? EventLogRemoveThemTemplate : EventLogRemoveYouTemplate;
      }
      else if ( event.old_amount == 0 )
      {
        template = bTheirAction ? EventLogAddThemTemplate : EventLogAddYouTemplate;
      }
      else if ( newAmount > oldAmount )
      {
        bAmountChanged = true;
        template = bTheirAction ? EventLogIncreaseCurrencyThemTemplate : EventLogIncreaseCurrencyYouTemplate;
      }
      else if ( newAmount < oldAmount )
      {
        bAmountChanged = true;
        template = bTheirAction ? EventLogDecreaseCurrencyThemTemplate : EventLogDecreaseCurrencyYouTemplate;
      }

      var user = bTheirAction ? UserThem : UserYou;
      var currency = user.FindCurrency( event.appid, event.contextid, event.currencyid );
      if ( !currency && user.BIsLoadingInventoryData() )
      {
        bNeedInventoryLoad = true;
        break;
      }

      var currencyname = ( currency ) ? currency.name : 'Unknown Item';

      var formatFunc;
      if ( CurrencyIsWalletFunds( currency ) )
      {
        if ( bTheirAction )
        {
          var bShouldConvert = typeof(g_rgWalletInfo) != 'undefined' &&
            g_rgWalletInfo['wallet_currency'] != g_rgWalletInfo['wallet_other_currency'];
          var nNewAmountAfterFee = newAmount - CalculateFeeAmount( newAmount );
          if ( bShouldConvert )
          {
            nNewAmountAfterFee = ConvertToOurCurrencyForDisplay( nNewAmountAfterFee );
          }

          var bPreviouslyOverMax = g_bWalletBalanceWouldBeOverMax;
          g_bWalletBalanceWouldBeOverMax = newAmount > 0 && ( typeof(g_rgWalletInfo) != 'undefined' && nNewAmountAfterFee + g_rgWalletInfo['wallet_balance'] > g_rgWalletInfo['wallet_max_balance'] );

          if ( g_bWalletBalanceWouldBeOverMax )
          {
            strAfterEvent =
              '<%1$s>Error:<%2$s> You can\'t accept %3$s\'s offer of %4$s. You currently have %5$s in your Steam Wallet, but this offer would put you over the maximum of %6$s.'
                .replace( '%1$s', 'span class="warning"' )
                .replace( '%2$s', '/span' )
                .replace( '%3$s', g_strTradePartnerPersonaName )
                .replace( '%4$s', v_currencyformat( nNewAmountAfterFee, GetCurrencyCode( g_rgWalletInfo['wallet_currency'] ) ) )
                .replace( '%5$s', v_currencyformat( g_rgWalletInfo['wallet_balance'], GetCurrencyCode( g_rgWalletInfo['wallet_currency'] ) ) )
                .replace( '%6$s', v_currencyformat( g_rgWalletInfo['wallet_max_balance'], GetCurrencyCode( g_rgWalletInfo['wallet_currency'] ) ) );
          }

          if ( g_bWalletBalanceWouldBeOverMax != bPreviouslyOverMax )
          {
            UpdateReadyButtons();
          }
        }

        // Don't show a currency name unless we're changing value ( ex: "increased the amount of Wallet Funds to $1.23" )
        currencyname = bAmountChanged ? 'Wallet Funds' : '';

        formatFunc = function( x ) {
          var nPostFeeAmount = x - CalculateFeeAmount( x );
          if ( bShouldConvert )
          {
            // return "OurCurrency / TheirCurrency";
            if ( g_rgWalletInfo['wallet_other_currency'] == ( currency.id % 1000 ) )
            {
              return v_currencyformat( ConvertToOurCurrencyForDisplay( nPostFeeAmount ), GetCurrencyCode( g_rgWalletInfo['wallet_currency'] ) ) + ' / ' + v_currencyformat( nPostFeeAmount, currency.name );
            }
            else if ( g_rgWalletInfo['wallet_currency'] == ( currency.id % 1000 ) )
            {
              return v_currencyformat( nPostFeeAmount, currency.name ) + ' / ' + v_currencyformat( ConvertToTheirCurrency( nPostFeeAmount ), GetCurrencyCode( g_rgWalletInfo['wallet_other_currency'] ) );
            }
          }

          return v_currencyformat( nPostFeeAmount, currency.name );
        };
      }
      else
      {
        formatFunc = v_numberformat;
      }

      var itemname = formatFunc( event.amount == 0 ? event.old_amount : event.amount ) + ' ' + currencyname;
      var itemstyle = ( currency && currency.name_color ) ? 'color: #' + currency.name_color + ';' : '';

      strEvent = template.evaluate(
          {
            theirname: g_strTradePartnerPersonaName,
            itemname: itemname,
            currencyname: currencyname,
            itemstyle: itemstyle,
            amount: formatFunc( event.amount )
          }
      );

      break;