Migrate over to mobx

.env

@@ -1,2 +1,2 @@
-MONERO_C_TAG=v0.18.3.4-RC12
+MONERO_C_TAG=v0.18.4.0-RC1
 COIN=monero 

android/.gitignore

@@ -12,3 +12,4 @@ key.properties
 **/*.keystore
 **/*.jks
 **/*.pwd
+app/.cxx

lib/coins/monero/creation/common.dart

@@ -161,10 +161,6 @@ class MoneroWalletCreation extends WalletCreation {
       }
     }
 
-    print(await walletAddress.value);
-    print(await secretSpendKey.value);
-    print(await secretViewKey.value);
-
     return RestoreFromKeysMoneroWalletCreationMethod(
       L,
       walletPath: coin.getPathForWallet(walletName),

lib/coins/monero/wallet.dart

@@ -89,7 +89,6 @@ class MoneroWallet implements CoinWallet {
 
   @override
   Future<void> handleUR(final BuildContext context, final URQRData ur) async {
-    print("handling: ${ur.tag}");
     switch (ur.tag) {
       case "xmr-keyimage" || "xmr-txsigned":
         throw Exception("Unable to handle ${ur.tag}. This is a offline wallet");

lib/coins/monero/wallet_info.dart

@@ -77,6 +77,12 @@ class MoneroWalletInfo extends CoinWalletInfo {
     }
     Monero.wPtrList.clear();
     final basePath = p.dirname(walletName);
+    if (File(p.join(basePath, newName)).existsSync()) {
+      throw Exception(Coin.L.error_wallet_name_already_exists);
+    }
+    if (File(p.join(basePath, "$newName.keys")).existsSync()) {
+      throw Exception(Coin.L.error_wallet_name_already_exists);
+    }
     File(walletName).copySync(p.join(basePath, newName));
     File("$walletName.keys").copySync(p.join(basePath, "$newName.keys"));
     // Copy and delete later, if anything throws below we end up with copied walled,

lib/l10n/app_en.arb

@@ -39,6 +39,7 @@
   "error_ur_tag_unsupported": "Unable to handle {urTag}",
   "error_wallet_doesnt_exist": "Given wallet doesn't exist {walletName}",
   "error_wallet_is_null_no_indication_of_failure": "Wallet creation failed, and status indicated failure but message was empty",
+  "error_wallet_name_already_exists": "Wallet with this name already exists",
   "error_wallet_name_empty": "Wallet name is empty",
   "error_wallet_name_unchanged": "Wallet wasn't renamed because the name is not different",
   "export_key_images": "Export key images",

lib/view_model/abstract.dart

@@ -6,7 +6,7 @@ import 'package:cupcake/l10n/app_localizations.dart';
 import 'package:cupcake/utils/alerts/basic.dart';
 import 'package:flutter/material.dart';
 
-class ViewModel {
+abstract class ViewModel {
   bool canPop = true;
   String get screenName => "screenName";
 
@@ -38,13 +38,6 @@ class ViewModel {
     return c?.mounted ?? false;
   }
 
-  void markNeedsBuild() {
-    if (c == null) {
-      throw Exception("c is null, did you forget to register(context)?");
-    }
-    (c as Element).markNeedsBuild();
-  }
-
   Future<void> errorHandler(final Object e) => callThrowable(() => throw e, L.create_wallet);
 
   Future<bool> callThrowable(final Future<void> Function() function, final String title) async {