fixup! feat(ramp): add new plugin architecture for fiat on/off ramps

Author: samholmes

src/components/scenes/TradeCreateScene.tsx

@@ -207,7 +207,7 @@ export const TradeCreateScene: React.FC<Props> = (props: Props) => {
       tokenId: selectedCrypto?.tokenId ?? null,
       displayCurrencyCode: selectedCryptoCurrencyCode,
       exchangeAmount: userInput,
-      fiatCurrencyCode: `iso:${selectedFiatCurrencyCode}`,
+      fiatCurrencyCode: selectedFiatCurrencyCode,
       amountType: lastUsedInput,
       direction: 'buy',
       regionCode: {

src/plugins/ramps/paybis/paybisRampPlugin.ts

@@ -223,6 +223,10 @@ interface ExtendedTokenId extends EdgeAsset {
   currencyCode?: string
 }
 
+const ensureIsoPrefix = (currencyCode: string): string => {
+  return currencyCode.startsWith('iso:') ? currencyCode : `iso:${currencyCode}`
+}
+
 const FIAT_DECIMALS = -2
 const CRYPTO_DECIMALS = -8
 
@@ -690,7 +694,7 @@ export const paybisRampPlugin: RampPluginFactory = (
       // Check asset support
       const assetResult = checkAssetSupport(
         direction,
-        `iso:${fiatAsset.currencyCode}`,
+        ensureIsoPrefix(fiatAsset.currencyCode),
         cryptoAsset
       )
       if (assetResult != null) {
@@ -772,7 +776,7 @@ export const paybisRampPlugin: RampPluginFactory = (
       }
       const assetResult = checkAssetSupport(
         direction,
-        fiatCurrencyCode,
+        ensureIsoPrefix(fiatCurrencyCode),
         cryptoAsset
       )
       if (assetResult != null) {