stratum: fix wallet name after selection, do not panic after stop

src/gui/views/network/mining.rs

@@ -25,27 +25,17 @@ use crate::gui::views::network::NetworkContent;
 use crate::gui::views::network::setup::StratumSetup;
 use crate::gui::views::network::types::{NodeTab, NodeTabType};
 use crate::node::{Node, NodeConfig};
-use crate::wallet::WalletConfig;
 
 /// Mining tab content.
 pub struct NetworkMining {
     /// Stratum server setup content.
     stratum_server_setup: StratumSetup,
-
-    /// Wallet name for rewards.
-    wallet_name: String,
 }
 
 impl Default for NetworkMining {
     fn default() -> Self {
-        let wallet_name = if let Some(id) = NodeConfig::get_stratum_wallet_id() {
-            WalletConfig::name_by_id(id).unwrap_or("-".to_string())
-        } else {
-            "-".to_string()
-        };
         Self {
             stratum_server_setup: StratumSetup::default(),
-            wallet_name,
         }
     }
 }
@@ -91,7 +81,10 @@ impl NodeTab for NetworkMining {
             });
             columns[1].vertical_centered(|ui| {
                 View::label_box(ui,
-                                self.wallet_name.clone(),
+                                self.stratum_server_setup
+                                    .wallet_name
+                                    .clone()
+                                    .unwrap_or("-".to_string()),
                                 t!("network_mining.rewards_wallet"),
                                 [false, true, false, true]);
             });

src/gui/views/network/setup/stratum.rs

@@ -44,7 +44,7 @@ pub struct StratumSetup {
     is_port_available: bool,
 
     /// Wallet name to receive rewards.
-    wallet_name: Option<String>,
+    pub wallet_name: Option<String>,
 
     /// Attempt time value in seconds to mine on a particular header.
     attempt_time_edit: String,