OTT-1807: discard emptyVAST and invalidVAST bids detected by VAST unwrap module

analytics/pubmatic/logger.go

@@ -383,6 +383,19 @@ func getPartnerRecordsByImp(ao analytics.AuctionObject, rCtx *models.RequestCtx)
 			}
 
 			price := bid.Price
+			// If bids are rejected before setting bidExt.OriginalBidCPM, calculate the price and ocpm values based on the currency and revshare.
+			if price != 0 && bidExt.OriginalBidCPM == 0 {
+				if len(bidExt.OriginalBidCur) == 0 {
+					bidExt.OriginalBidCur = models.USD
+				}
+				bidExt.OriginalBidCPM = price
+				price = price * models.GetBidAdjustmentValue(revShare)
+				if cpmUSD, err := rCtx.CurrencyConversion(bidExt.OriginalBidCur, models.USD, price); err == nil {
+					bidExt.OriginalBidCPMUSD = cpmUSD
+				}
+				price = GetBidPriceAfterCurrencyConversion(price, ao.RequestWrapper.Cur, bidExt.OriginalBidCur, rCtx.CurrencyConversion)
+			}
+
 			if ao.Response.Cur != models.USD {
 				if bidCtx.EN != 0 { // valid-bids + dropped-bids+ default-bids
 					price = bidCtx.EN
@@ -564,3 +577,16 @@ func getAdPodSlot(adPodConfig *models.AdPod) *AdPodSlot {
 
 	return &adPodSlot
 }
+
+func GetBidPriceAfterCurrencyConversion(price float64, requestCurrencies []string, responseCurrency string,
+	currencyConverter func(fromCurrency string, toCurrency string, value float64) (float64, error)) float64 {
+	if len(requestCurrencies) == 0 {
+		requestCurrencies = []string{models.USD}
+	}
+	for _, requestCurrency := range requestCurrencies {
+		if value, err := currencyConverter(responseCurrency, requestCurrency, price); err == nil {
+			return value
+		}
+	}
+	return 0 // in case of error, send 0 value to make it consistent with prebid
+}