Implement TUI colon command mode

apps/tui/src/ui.rs

@@ -78,6 +78,15 @@ fn render_content(frame: &mut Frame, app: &App, area: Rect) {
     }
 
     if app.mode() == Mode::Help {
+        if let Some(help) = app.command_help() {
+            frame.render_widget(
+                Paragraph::new(help)
+                    .block(Block::bordered().title("Command help"))
+                    .wrap(Wrap { trim: false }),
+                area,
+            );
+            return;
+        }
         let lines = help_actions(app.help_context_mode()).map(|spec| {
             let bindings = spec
                 .bindings
@@ -231,6 +240,10 @@ fn main_text(app: &App) -> String {
         Mode::Dialog if app.discard_confirmation() => {
             "Discard all unsaved edits? Press y to discard, n or Esc to keep editing.".to_owned()
         }
+        Mode::Dialog if app.command_confirmation_message().is_some() => app
+            .command_confirmation_message()
+            .unwrap_or_default()
+            .to_owned(),
         Mode::Dialog => "Complete or cancel the active dialog.".to_owned(),
         Mode::Command => "Enter a command on the bottom line.".to_owned(),
         Mode::Help | Mode::Locked => String::new(),
@@ -418,7 +431,11 @@ fn context_line(app: &App) -> Paragraph<'static> {
 
 fn prompt_line(app: &App) -> Paragraph<'static> {
     match app.mode() {
-        Mode::Command => Paragraph::new(":").style(Style::default().fg(Color::Yellow)),
+        Mode::Command => Paragraph::new(format!(":{}", app.command_line().display()))
+            .style(Style::default().fg(Color::Yellow)),
+        Mode::Dialog if app.command_confirmation_message().is_some() => {
+            Paragraph::new("confirm> y / n / Esc").style(Style::default().fg(Color::Yellow))
+        }
         Mode::Dialog => Paragraph::new("dialog> ").style(Style::default().fg(Color::Yellow)),
         Mode::Editor if app.editor().is_some_and(EntryEditor::is_input_active) => {
             Paragraph::new("-- INSERT --  Esc stops input; Tab changes field; C-s saves")
@@ -513,6 +530,51 @@ mod tests {
         assert!(!viewer_help.contains("insert entry"));
     }
 
+    #[test]
+    fn command_prompt_help_and_confirmation_are_rendered_without_secrets() {
+        let mut app = App::new();
+        app.dispatch(crate::action::Action::Command);
+        for character in "otp validate otpauth://totp/test?secret=NEVER-SHOW".chars() {
+            app.handle_command_input(
+                crossterm::event::KeyCode::Char(character),
+                crossterm::event::KeyModifiers::NONE,
+            );
+        }
+        let prompt = render(120, 24, &app);
+        assert!(prompt.contains("hidden secret-bearing arguments"));
+        assert!(!prompt.contains("NEVER-SHOW"));
+
+        app.dispatch(crate::action::Action::Cancel);
+        app.dispatch(crate::action::Action::Command);
+        for character in "help git".chars() {
+            app.handle_command_input(
+                crossterm::event::KeyCode::Char(character),
+                crossterm::event::KeyModifiers::NONE,
+            );
+        }
+        app.handle_command_input(
+            crossterm::event::KeyCode::Enter,
+            crossterm::event::KeyModifiers::NONE,
+        );
+        assert!(render(120, 30, &app).contains("Usage: git"));
+
+        app.dispatch(crate::action::Action::Cancel);
+        app.dispatch(crate::action::Action::Command);
+        for character in "remove old/entry".chars() {
+            app.handle_command_input(
+                crossterm::event::KeyCode::Char(character),
+                crossterm::event::KeyModifiers::NONE,
+            );
+        }
+        app.handle_command_input(
+            crossterm::event::KeyCode::Enter,
+            crossterm::event::KeyModifiers::NONE,
+        );
+        let confirmation = render(120, 24, &app);
+        assert!(confirmation.contains("Confirm remove"));
+        assert!(confirmation.contains("confirm> y / n / Esc"));
+    }
+
     #[test]
     fn hierarchy_selection_and_storage_indicators_have_stable_rendering() {
         let mut app = App::new();