Fix issue printing correct currency values in set and card

src/serra/card.go

@@ -80,7 +80,7 @@ func Cards(rarity, set, sortby, name, oracle, cardType string, reserved, foil bo
 	var sortStage bson.D
 	switch sortby {
 	case "value":
-		if getCurrency() == "EUR" {
+		if getCurrency() == EUR {
 			sortStage = bson.D{{"prices.eur", 1}}
 		} else {
 			sortStage = bson.D{{"prices.usd", 1}}

src/serra/env.go

@@ -5,6 +5,9 @@ import (
 	"os"
 )
 
+const EUR = "€"
+const USD = "$"
+
 func getMongoDBURI() string {
 	uri := os.Getenv("MONGODB_URI")
 	if uri == "" {
@@ -19,13 +22,11 @@ func getMongoDBURI() string {
 func getCurrency() string {
 	switch os.Getenv("SERRA_CURRENCY") {
 	case "EUR":
-		return "€"
+		return EUR
 	case "USD":
+		return USD
+	default:
+		LogMessage("Warning: You did not configure SERRA_CURRENCY. Assuming \"USD\"", "yellow")
 		return "$"
 	}
-
-	// default
-	LogMessage("Warning: You did not configure SERRA_CURRENCY. Assuming \"USD\"", "yellow")
-
-	return "USD"
 }

src/serra/gains.go

@@ -57,7 +57,7 @@ func Gains(limit float64, sort int) error {
 	}
 
 	currencyField := "$serra_prices.usd"
-	if getCurrency() == "EUR" {
+	if getCurrency() == EUR {
 		currencyField = "$serra_prices.eur"
 	}
 

src/serra/helpers.go

@@ -167,14 +167,16 @@ func showPriceHistory(prices []PriceEntry, prefix string, total bool) {
 
 		var value float64
 		if total {
-			value = e.Usd + e.UsdFoil + e.UsdEtched
+			if getCurrency() == EUR {
-			if getCurrency() == "EUR" {
 				value = e.Eur + e.EurFoil
+			} else {
+				value = e.Usd + e.UsdFoil
 			}
 		} else {
-			value = e.Usd
+			if getCurrency() == EUR {
-			if getCurrency() == "EUR" {
 				value = e.Eur
+			} else {
+				value = e.Usd
 			}
 		}
 

src/serra/scryfall.go

@@ -119,7 +119,7 @@ type Card struct {
 
 // Getter for currency specific value
 func (c Card) getValue(foil bool) float64 {
-	if getCurrency() == "EUR" {
+	if getCurrency() == EUR {
 		if foil {
 			return c.Prices.EurFoil
 		}

src/serra/set.go

@@ -92,7 +92,7 @@ func ShowSet(setname string) error {
 
 	// fetch all cards in set ordered by currently used currency
 	cardSortCurrency := bson.D{{"prices.usd", -1}}
-	if getCurrency() == "EUR" {
+	if getCurrency() == EUR {
 		cardSortCurrency = bson.D{{"prices.eur", -1}}
 	}
 	cards, err := coll.storageFind(bson.D{{"set", setname}}, cardSortCurrency, 0, 0)