use assistant_settings::AssistantSettings;use fs::Fs;use gpui::{Entity, FocusHandle, SharedString};use language_model::LanguageModelRegistry;use language_model_selector::{    LanguageModelSelector, LanguageModelSelectorPopoverMenu, ToggleModelSelector,};use settings::update_settings_file;use std::sync::Arc;use ui::{prelude::*, ButtonLike, PopoverMenuHandle, Tooltip}; pub struct AssistantModelSelector {    selector: Entity<LanguageModelSelector>,    menu_handle: PopoverMenuHandle<LanguageModelSelector>,    focus_handle: FocusHandle,} impl AssistantModelSelector {    pub(crate) fn new(        fs: Arc<dyn Fs>,        menu_handle: PopoverMenuHandle<LanguageModelSelector>,        focus_handle: FocusHandle,        window: &mut Window,        cx: &mut App,    ) -> Self {        Self {            selector: cx.new(|cx| {                let fs = fs.clone();                LanguageModelSelector::new(                    move |model, cx| {                        update_settings_file::<AssistantSettings>(                            fs.clone(),                            cx,                            move |settings, _cx| settings.set_model(model.clone()),                        );                    },                    window,                    cx,                )            }),            menu_handle,            focus_handle,        }    }     pub fn toggle(&self, window: &mut Window, cx: &mut Context<Self>) {        self.menu_handle.toggle(window, cx);    }} impl Render for AssistantModelSelector {    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {        let active_model = LanguageModelRegistry::read_global(cx).active_model();        let focus_handle = self.focus_handle.clone();        let model_name = match active_model {            Some(model) => model.name().0,            _ => SharedString::from("No model selected"),        };         LanguageModelSelectorPopoverMenu::new(            self.selector.clone(),            ButtonLike::new("active-model")                .style(ButtonStyle::Subtle)                .child(                    h_flex()                        .gap_0p5()                        .child(                            Label::new(model_name)                                .size(LabelSize::Small)                                .color(Color::Muted),                        )                        .child(                            Icon::new(IconName::ChevronDown)                                .color(Color::Muted)                                .size(IconSize::XSmall),                        ),                ),            move |window, cx| {                Tooltip::for_action_in(                    "Change Model",                    &ToggleModelSelector,                    &focus_handle,                    window,                    cx,                )            },            gpui::Corner::BottomRight,        )        .with_handle(self.menu_handle.clone())    }}