Governor should handle duplicate coin gecko ids

node/pkg/governor/governor.go

@@ -105,7 +105,7 @@ type ChainGovernor struct {
 	logger              *zap.Logger
 	mutex               sync.Mutex
 	tokens              map[tokenKey]*tokenEntry
-	tokensByCoinGeckoId map[string]*tokenEntry
+	tokensByCoinGeckoId map[string][]*tokenEntry
 	chains              map[vaa.ChainID]*chainEntry
 	msgsToPublish       []*common.MessagePublication
 	dayLengthInMinutes  int
@@ -122,7 +122,7 @@ func NewChainGovernor(
 		db:                  db,
 		logger:              logger,
 		tokens:              make(map[tokenKey]*tokenEntry),
-		tokensByCoinGeckoId: make(map[string]*tokenEntry),
+		tokensByCoinGeckoId: make(map[string][]*tokenEntry),
 		chains:              make(map[vaa.ChainID]*chainEntry),
 		env:                 env,
 	}
@@ -185,6 +185,17 @@ func (gov *ChainGovernor) initConfig() error {
 		te := &tokenEntry{cfgPrice: cfgPrice, price: initialPrice, decimals: decimals, symbol: ct.symbol, coinGeckoId: ct.coinGeckoId, token: key}
 		te.updatePrice()
 
+		gov.tokens[key] = te
+
+		// Multiple tokens can share a CoinGecko price, so we keep an array of tokens per CoinGecko ID.
+		cge, cgExists := gov.tokensByCoinGeckoId[te.coinGeckoId]
+		if !cgExists {
+			gov.tokensByCoinGeckoId[te.coinGeckoId] = []*tokenEntry{te}
+		} else {
+			cge = append(cge, te)
+			gov.tokensByCoinGeckoId[te.coinGeckoId] = cge
+		}
+
 		gov.logger.Info("cgov: will monitor token:", zap.Stringer("chain", key.chain),
 			zap.Stringer("addr", key.addr),
 			zap.String("symbol", te.symbol),
@@ -193,9 +204,6 @@ func (gov *ChainGovernor) initConfig() error {
 			zap.Int64("decimals", dec),
 			zap.Int64("origDecimals", ct.decimals),
 		)
-
-		gov.tokens[key] = te
-		gov.tokensByCoinGeckoId[te.coinGeckoId] = te
 	}
 
 	if len(gov.tokens) == 0 {

node/pkg/governor/governor_prices.go

@@ -109,13 +109,13 @@ func (gov *ChainGovernor) queryCoinGecko() {
 	gov.mutex.Lock()
 	defer gov.mutex.Unlock()
 
-	localTokenMap := make(map[string]*tokenEntry)
-	for coinGeckoId, te := range gov.tokensByCoinGeckoId {
-		localTokenMap[coinGeckoId] = te
+	localTokenMap := make(map[string][]*tokenEntry)
+	for coinGeckoId, cge := range gov.tokensByCoinGeckoId {
+		localTokenMap[coinGeckoId] = cge
 	}
 
 	for coinGeckoId, data := range result {
-		te, exists := gov.tokensByCoinGeckoId[coinGeckoId]
+		cge, exists := gov.tokensByCoinGeckoId[coinGeckoId]
 		if exists {
 			price, ok := data.(map[string]interface{})["usd"].(float64)
 			if !ok {
@@ -123,6 +123,8 @@ func (gov *ChainGovernor) queryCoinGecko() {
 				// By continuing, we leave this one in the local map so the price will get reverted below.
 				continue
 			}
+
+			for _, te := range cge {
 				te.coinGeckoPrice = big.NewFloat(price)
 				te.updatePrice()
 				te.priceTime = now
@@ -135,6 +137,7 @@ func (gov *ChainGovernor) queryCoinGecko() {
 					zap.Stringer("cfgPrice", te.cfgPrice),
 					zap.Stringer("coinGeckoPrice", te.coinGeckoPrice),
 				)
+			}
 
 			delete(localTokenMap, coinGeckoId)
 		} else {
@@ -143,7 +146,8 @@ func (gov *ChainGovernor) queryCoinGecko() {
 	}
 
 	if len(localTokenMap) != 0 {
-		for _, te := range localTokenMap {
+		for _, lcge := range localTokenMap {
+			for _, te := range lcge {
 				gov.logger.Error("cgov: did not receive a CoinGecko response for symbol, reverting to configured price",
 					zap.String("symbol", te.symbol),
 					zap.String("coinGeckoId",
@@ -155,13 +159,15 @@ func (gov *ChainGovernor) queryCoinGecko() {
 				// Don't update the timestamp so we'll know when we last received an update from CoinGecko.
 			}
 		}
+	}
 }
 
 func (gov *ChainGovernor) revertAllPrices() {
 	gov.mutex.Lock()
 	defer gov.mutex.Unlock()
 
-	for _, te := range gov.tokensByCoinGeckoId {
+	for _, cge := range gov.tokensByCoinGeckoId {
+		for _, te := range cge {
 			gov.logger.Error("cgov: reverting to configured price",
 				zap.String("symbol", te.symbol),
 				zap.String("coinGeckoId",
@@ -172,6 +178,7 @@ func (gov *ChainGovernor) revertAllPrices() {
 			te.price = te.cfgPrice
 			// Don't update the timestamp so we'll know when we last received an update from CoinGecko.
 		}
+	}
 }
 
 // We should use the max(coinGeckoPrice, configuredPrice) as our price for computing notional value.

node/pkg/governor/governor_test.go

@@ -78,7 +78,13 @@ func (gov *ChainGovernor) setTokenForTesting(tokenChainID vaa.ChainID, tokenAddr
 	key := tokenKey{chain: vaa.ChainID(tokenChainID), addr: tokenAddr}
 	te := &tokenEntry{cfgPrice: bigPrice, price: bigPrice, decimals: decimals, symbol: symbol, coinGeckoId: symbol, token: key}
 	gov.tokens[key] = te
-	gov.tokensByCoinGeckoId[symbol] = te
+	cge, cgExists := gov.tokensByCoinGeckoId[te.coinGeckoId]
+	if !cgExists {
+		gov.tokensByCoinGeckoId[te.coinGeckoId] = []*tokenEntry{te}
+	} else {
+		cge = append(cge, te)
+		gov.tokensByCoinGeckoId[te.coinGeckoId] = cge
+	}
 	return nil
 }