fix some issues with list and redraw

src/radio/app.rs

@@ -89,7 +89,12 @@ impl App {
             .iter()
             .map(|s| {
                 let name = if s.name.len() > max_name_len {
-                    format!("{}...", &s.name[..max_name_len.saturating_sub(3)])
+                    let truncated: String = s
+                        .name
+                        .chars()
+                        .take(max_name_len.saturating_sub(3))
+                        .collect();
+                    format!("{}...", truncated)
                 } else {
                     s.name.clone()
                 };
@@ -135,12 +140,14 @@ impl App {
     }
 
     async fn handle_events(&mut self) -> io::Result<()> {
+        if event::poll(std::time::Duration::from_millis(100))? {
             match event::read()? {
                 Event::Key(key_event) if key_event.kind == KeyEventKind::Press => {
-                self.handle_key_event(key_event).await
+                    self.handle_key_event(key_event).await;
                 }
                 _ => {}
-        };
+            }
+        }
         Ok(())
     }
 
@@ -180,19 +187,27 @@ impl App {
                 KeyCode::Char('q') => self.exit().await,
                 KeyCode::Down | KeyCode::Char('j') => {
                     if let Some(i) = self.station_list_state.selected() {
-                        let next = (i + 1).min(self.stations.len().saturating_sub(1));
+                        if !self.filtered_stations.is_empty() {
+                            let next = (i + 1) % self.filtered_stations.len();
                             self.station_list_state.select(Some(next));
                         }
                     }
+                }
                 KeyCode::Up | KeyCode::Char('k') => {
                     if let Some(i) = self.station_list_state.selected() {
-                        let prev = i.saturating_sub(1);
+                        if !self.filtered_stations.is_empty() {
+                            let prev = if i == 0 {
+                                self.filtered_stations.len() - 1
+                            } else {
+                                i - 1
+                            };
                             self.station_list_state.select(Some(prev));
                         }
                     }
+                }
                 KeyCode::Enter => {
                     if let Some(i) = self.station_list_state.selected() {
-                        if let Some(station) = self.stations.get(i) {
+                        if let Some(station) = self.filtered_stations.get(i) {
                             self.play_station(station.url.clone()).await;
                         }
                     }