fix: incorrect restore height sometimes being set on monero (#2390)

Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>

cw_monero/lib/api/wallet_manager.dart

@@ -90,8 +90,9 @@ void createWallet(
   if (status != 0) {
     throw WalletCreationException(message: newW.errorString());
   }
-
+  newW.store(path: path);
   setupBackgroundSync(password, newW);
+  newW.store(path: path);
 
   currentWallet = newW;
   currentWallet!.setCacheAttribute(key: "cakewallet.passphrase", value: passphrase);
@@ -179,6 +180,8 @@ void restoreWalletFromKeys(
     throw WalletRestoreFromKeysException(
         message: newW.errorString());
   }
+  newW.store(path: path);
+
 
   // CW-712 - Try to restore deterministic wallet first, if the view key doesn't
   // match the view key provided
@@ -202,6 +205,7 @@ void restoreWalletFromKeys(
         throw WalletRestoreFromKeysException(
             message: newW.errorString());
       }
+      newW.store(path: path);
 
       setupBackgroundSync(password, newW);
     }

cw_monero/lib/monero_wallet.dart

@@ -804,28 +804,39 @@ abstract class MoneroWalletBase extends WalletBase<MoneroBalance,
     throw Exception("height isn't > $MIN_RESTORE_HEIGHT!");
   }
 
-  void _setHeightFromDate() {
+  void _setHeightFromDate({int tryNum = 0}) {
     if (walletInfo.isRecovery) {
       return;
     }
 
     int height = 0;
     try {
-      height = _getHeightByDate(walletInfo.date);
-    } catch (_) {}
+      height = _getHeightByDate(walletInfo.date.subtract(Duration(days: 14)));
+      if (height <= 0) {
+        throw Exception("height is <= 0");
+      }
+      monero_wallet.setRefreshFromBlockHeight(height: height);
+    } catch (_) {
+      if (tryNum <= 3) {
+        printV("Failed to set height from date, retrying... $tryNum");
+        unawaited(() async {
+          await Future.delayed(Duration(seconds: 10));
+          _setHeightFromDate(tryNum: tryNum + 1);
+        }());
+      }
+    }
 
     monero_wallet.setRecoveringFromSeed(isRecovery: true);
-    monero_wallet.setRefreshFromBlockHeight(height: height);
     setupBackgroundSync(password, currentWallet!);
   }
 
   int _getHeightDistance(DateTime date) {
     final distance =
-        DateTime.now().millisecondsSinceEpoch - date.millisecondsSinceEpoch;
+        DateTime.now().difference(date).inSeconds;
     final daysTmp = (distance / 86400).round();
     final days = daysTmp < 1 ? 1 : daysTmp;
 
-    return days * 1000;
+    return days * 720; // there are720 blocks per day on xmr
   }
 
   int _getHeightByDate(DateTime date) {

lib/exchange/provider/chainflip_exchange_provider.dart

@@ -297,14 +297,14 @@ class ChainflipExchangeProvider extends ExchangeProvider {
       throw Exception('Unexpected response: ${response.statusCode} / ${uri.toString()} / ${response.body}');
     }
 
-    final quotes = json.decode(response.body) as List<dynamic>;
+    final quotes = json.decode(response.body) as List<Map<String, dynamic>>;
 
     Map<String, dynamic> highestQuote = quotes.reduce((current, next) {
-      final currentAmount = current['egressAmount'] as double;
-      final nextAmount = next['egressAmount'] as double;
+      double currentAmount = current['egressAmount'] as double;
+      double nextAmount = next['egressAmount'] as double;
 
       return currentAmount > nextAmount ? current : next;
-    }) as Map<String, dynamic>;
+    });
 
     return highestQuote;
   }