help controls

src/ui.rs

@@ -535,14 +535,45 @@ fn centered_rect(width: u16, height: u16, area: Rect) -> Rect {
 // ── Status bar ────────────────────────────────────────────────────────────────
 
 fn draw_status_bar(f: &mut Frame, app: &App, area: Rect) {
-    let msg = if app.selected == SMART_IDX && app.smart_permission_error {
-        " ZFS Stats  [!] SMART needs root — press p to enter sudo password   q  Quit"
+    let key  = |s: &'static str| Span::styled(s, Style::default().fg(Color::Yellow).add_modifier(Modifier::BOLD));
+    let sep  = |s: &'static str| Span::styled(s, Style::default().fg(Color::White));
+    let desc = |s: &'static str| Span::styled(s, Style::default().fg(Color::Gray));
+    let err  = |s: &'static str| Span::styled(s, Style::default().fg(Color::Red).add_modifier(Modifier::BOLD));
+    let divider = || sep("   ");
+
+    let mut spans: Vec<Span> = vec![
+        sep(" "),
+        // Navigation
+        key("[↑/↓]"), sep(" "), desc("or"), sep(" "), key("[j/k]"), sep(" "), desc("Navigate"),
+        divider(),
+        // Quit
+        key("[q/Esc]"), sep(" "), desc("Quit"),
+    ];
+
+    // Context-sensitive: sudo password on SMART panel
+    if app.selected == SMART_IDX {
+        spans.push(divider());
+        spans.push(key("[p]"));
+        spans.push(sep(" "));
+        spans.push(desc("sudo password"));
+    }
+
+    // Error indicators
+    if app.selected == SMART_IDX && app.smart_permission_error {
+        spans.push(divider());
+        spans.push(err("[!]"));
+        spans.push(sep(" "));
+        spans.push(Span::styled("SMART needs root", Style::default().fg(Color::Red)));
     } else if app.error.is_some() || app.pool_error.is_some() {
-        " ZFS Stats  [!] Some stats unavailable   ↑/↓ or j/k  Navigate   q  Quit"
-    } else {
-        " ZFS Stats  ↑/↓ or j/k  Navigate   q  Quit"
-    };
-    f.render_widget(Paragraph::new(msg).style(Style::default().bg(Color::DarkGray).fg(Color::White)), area);
+        spans.push(divider());
+        spans.push(err("[!]"));
+        spans.push(sep(" "));
+        spans.push(Span::styled("Some stats unavailable", Style::default().fg(Color::Red)));
+    }
+
+    let bar = Paragraph::new(Line::from(spans))
+        .style(Style::default().bg(Color::DarkGray));
+    f.render_widget(bar, area);
 }
 
 // ── Shared chart renderer ─────────────────────────────────────────────────────