Return error if specified Monero account doesn't exist

CHANGELOG.md

@@ -11,6 +11,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Ignore errors when importing activities from outbox.
 - Make activity limit in outbox fetcher adjustable.
 - Changed `reset-subscriptions` command arguments (removes subscription options by default).
+- Return error if specified Monero account doesn't exist.
 
 ## [1.21.0] - 2023-04-12
 

src/monero/wallet.rs

@@ -87,6 +87,13 @@ pub async fn open_monero_wallet(
             return Err(error.into());
         };
     };
+    // Verify account exists
+    let account_exists = wallet_client.get_accounts(None).await?
+        .subaddress_accounts.into_iter()
+        .any(|account| account.account_index == config.account_index);
+    if !account_exists {
+        return Err(MoneroError::WalletRpcError("account doesn't exist"));
+    };
     Ok(wallet_client)
 }