check and update primary node if primary node is a default node that was updated

lib/services/node_service.dart

@@ -39,6 +39,19 @@ class NodeService extends ChangeNotifier {
             key: savedNode.id,
             value: defaultNode.copyWith(enabled: savedNode.enabled));
       }
+
+      // check if a default node is the primary node for the crypto currency
+      // and update it if needed
+      final coin = coinFromPrettyName(defaultNode.coinName);
+      final primaryNode = getPrimaryNodeFor(coin: coin);
+      if (primaryNode != null && primaryNode.id == defaultNode.id) {
+        await setPrimaryNodeFor(
+          coin: coin,
+          node: defaultNode.copyWith(
+            enabled: primaryNode.enabled,
+          ),
+        );
+      }
     }
   }
 

lib/utilities/enums/coin_enum.dart

@@ -181,25 +181,32 @@ Coin coinFromPrettyName(String name) {
     case "Bitcoin":
     case "bitcoin":
       return Coin.bitcoin;
+
     case "Bitcoincash":
     case "bitcoincash":
     case "Bitcoin Cash":
       return Coin.bitcoincash;
+
     case "Dogecoin":
     case "dogecoin":
       return Coin.dogecoin;
+
     case "Epic Cash":
     case "epicCash":
       return Coin.epicCash;
+
     case "Firo":
     case "firo":
       return Coin.firo;
+
     case "Monero":
     case "monero":
       return Coin.monero;
+
     case "Namecoin":
     case "namecoin":
       return Coin.namecoin;
+
     case "Bitcoin Testnet":
     case "tBitcoin":
     case "bitcoinTestNet":
@@ -208,19 +215,24 @@ Coin coinFromPrettyName(String name) {
     case "Bitcoincash Testnet":
     case "tBitcoin Cash":
     case "Bitcoin Cash Testnet":
+    case "bitcoincashTestnet":
       return Coin.bitcoincashTestnet;
+
     case "Firo Testnet":
     case "tFiro":
     case "firoTestNet":
       return Coin.firoTestNet;
+
     case "Dogecoin Testnet":
     case "tDogecoin":
     case "dogecoinTestNet":
       return Coin.dogecoinTestNet;
+
     case "Wownero":
     case "tWownero":
     case "wownero":
       return Coin.wownero;
+
     default:
       throw ArgumentError.value(
           name, "name", "No Coin enum value with that prettyName");