lmstudio.rs

  1use anyhow::{Result, anyhow};
  2use collections::HashMap;
  3use futures::Stream;
  4use futures::{FutureExt, StreamExt, future::BoxFuture, stream::BoxStream};
  5use gpui::{AnyView, App, AsyncApp, Context, Entity, Subscription, Task};
  6use http_client::HttpClient;
  7use language_model::{
  8    AuthenticateError, LanguageModelCompletionError, LanguageModelCompletionEvent,
  9    LanguageModelToolChoice, LanguageModelToolResultContent, LanguageModelToolUse, MessageContent,
 10    StopReason, TokenUsage,
 11};
 12use language_model::{
 13    IconOrSvg, LanguageModel, LanguageModelId, LanguageModelName, LanguageModelProvider,
 14    LanguageModelProviderId, LanguageModelProviderName, LanguageModelProviderState,
 15    LanguageModelRequest, RateLimiter, Role,
 16};
 17use lmstudio::{ModelType, get_models};
 18pub use settings::LmStudioAvailableModel as AvailableModel;
 19use settings::{Settings, SettingsStore};
 20use std::pin::Pin;
 21use std::str::FromStr;
 22use std::{collections::BTreeMap, sync::Arc};
 23use ui::{ButtonLike, Indicator, List, ListBulletItem, prelude::*};
 24use util::ResultExt;
 25
 26use crate::AllLanguageModelSettings;
 27
 28const LMSTUDIO_DOWNLOAD_URL: &str = "https://lmstudio.ai/download";
 29const LMSTUDIO_CATALOG_URL: &str = "https://lmstudio.ai/models";
 30const LMSTUDIO_SITE: &str = "https://lmstudio.ai/";
 31
 32const PROVIDER_ID: LanguageModelProviderId = LanguageModelProviderId::new("lmstudio");
 33const PROVIDER_NAME: LanguageModelProviderName = LanguageModelProviderName::new("LM Studio");
 34
 35#[derive(Default, Debug, Clone, PartialEq)]
 36pub struct LmStudioSettings {
 37    pub api_url: String,
 38    pub available_models: Vec<AvailableModel>,
 39}
 40
 41pub struct LmStudioLanguageModelProvider {
 42    http_client: Arc<dyn HttpClient>,
 43    state: Entity<State>,
 44}
 45
 46pub struct State {
 47    http_client: Arc<dyn HttpClient>,
 48    available_models: Vec<lmstudio::Model>,
 49    fetch_model_task: Option<Task<Result<()>>>,
 50    _subscription: Subscription,
 51}
 52
 53impl State {
 54    fn is_authenticated(&self) -> bool {
 55        !self.available_models.is_empty()
 56    }
 57
 58    fn fetch_models(&mut self, cx: &mut Context<Self>) -> Task<Result<()>> {
 59        let settings = &AllLanguageModelSettings::get_global(cx).lmstudio;
 60        let http_client = self.http_client.clone();
 61        let api_url = settings.api_url.clone();
 62
 63        // As a proxy for the server being "authenticated", we'll check if its up by fetching the models
 64        cx.spawn(async move |this, cx| {
 65            let models = get_models(http_client.as_ref(), &api_url, None).await?;
 66
 67            let mut models: Vec<lmstudio::Model> = models
 68                .into_iter()
 69                .filter(|model| model.r#type != ModelType::Embeddings)
 70                .map(|model| {
 71                    lmstudio::Model::new(
 72                        &model.id,
 73                        None,
 74                        model
 75                            .loaded_context_length
 76                            .or_else(|| model.max_context_length),
 77                        model.capabilities.supports_tool_calls(),
 78                        model.capabilities.supports_images() || model.r#type == ModelType::Vlm,
 79                    )
 80                })
 81                .collect();
 82
 83            models.sort_by(|a, b| a.name.cmp(&b.name));
 84
 85            this.update(cx, |this, cx| {
 86                this.available_models = models;
 87                cx.notify();
 88            })
 89        })
 90    }
 91
 92    fn restart_fetch_models_task(&mut self, cx: &mut Context<Self>) {
 93        let task = self.fetch_models(cx);
 94        self.fetch_model_task.replace(task);
 95    }
 96
 97    fn authenticate(&mut self, cx: &mut Context<Self>) -> Task<Result<(), AuthenticateError>> {
 98        if self.is_authenticated() {
 99            return Task::ready(Ok(()));
100        }
101
102        let fetch_models_task = self.fetch_models(cx);
103        cx.spawn(async move |_this, _cx| {
104            match fetch_models_task.await {
105                Ok(()) => Ok(()),
106                Err(err) => {
107                    // If any cause in the error chain is an std::io::Error with
108                    // ErrorKind::ConnectionRefused, treat this as "credentials not found"
109                    // (i.e. LM Studio not running).
110                    let mut connection_refused = false;
111                    for cause in err.chain() {
112                        if let Some(io_err) = cause.downcast_ref::<std::io::Error>() {
113                            if io_err.kind() == std::io::ErrorKind::ConnectionRefused {
114                                connection_refused = true;
115                                break;
116                            }
117                        }
118                    }
119                    if connection_refused {
120                        Err(AuthenticateError::ConnectionRefused)
121                    } else {
122                        Err(AuthenticateError::Other(err))
123                    }
124                }
125            }
126        })
127    }
128}
129
130impl LmStudioLanguageModelProvider {
131    pub fn new(http_client: Arc<dyn HttpClient>, cx: &mut App) -> Self {
132        let this = Self {
133            http_client: http_client.clone(),
134            state: cx.new(|cx| {
135                let subscription = cx.observe_global::<SettingsStore>({
136                    let mut settings = AllLanguageModelSettings::get_global(cx).lmstudio.clone();
137                    move |this: &mut State, cx| {
138                        let new_settings = &AllLanguageModelSettings::get_global(cx).lmstudio;
139                        if &settings != new_settings {
140                            settings = new_settings.clone();
141                            this.restart_fetch_models_task(cx);
142                            cx.notify();
143                        }
144                    }
145                });
146
147                State {
148                    http_client,
149                    available_models: Default::default(),
150                    fetch_model_task: None,
151                    _subscription: subscription,
152                }
153            }),
154        };
155        this.state
156            .update(cx, |state, cx| state.restart_fetch_models_task(cx));
157        this
158    }
159}
160
161impl LanguageModelProviderState for LmStudioLanguageModelProvider {
162    type ObservableEntity = State;
163
164    fn observable_entity(&self) -> Option<Entity<Self::ObservableEntity>> {
165        Some(self.state.clone())
166    }
167}
168
169impl LanguageModelProvider for LmStudioLanguageModelProvider {
170    fn id(&self) -> LanguageModelProviderId {
171        PROVIDER_ID
172    }
173
174    fn name(&self) -> LanguageModelProviderName {
175        PROVIDER_NAME
176    }
177
178    fn icon(&self) -> IconOrSvg {
179        IconOrSvg::Icon(IconName::AiLmStudio)
180    }
181
182    fn default_model(&self, _: &App) -> Option<Arc<dyn LanguageModel>> {
183        // We shouldn't try to select default model, because it might lead to a load call for an unloaded model.
184        // In a constrained environment where user might not have enough resources it'll be a bad UX to select something
185        // to load by default.
186        None
187    }
188
189    fn default_fast_model(&self, _: &App) -> Option<Arc<dyn LanguageModel>> {
190        // See explanation for default_model.
191        None
192    }
193
194    fn provided_models(&self, cx: &App) -> Vec<Arc<dyn LanguageModel>> {
195        let mut models: BTreeMap<String, lmstudio::Model> = BTreeMap::default();
196
197        // Add models from the LM Studio API
198        for model in self.state.read(cx).available_models.iter() {
199            models.insert(model.name.clone(), model.clone());
200        }
201
202        // Override with available models from settings
203        for model in AllLanguageModelSettings::get_global(cx)
204            .lmstudio
205            .available_models
206            .iter()
207        {
208            models.insert(
209                model.name.clone(),
210                lmstudio::Model {
211                    name: model.name.clone(),
212                    display_name: model.display_name.clone(),
213                    max_tokens: model.max_tokens,
214                    supports_tool_calls: model.supports_tool_calls,
215                    supports_images: model.supports_images,
216                },
217            );
218        }
219
220        models
221            .into_values()
222            .map(|model| {
223                Arc::new(LmStudioLanguageModel {
224                    id: LanguageModelId::from(model.name.clone()),
225                    model,
226                    http_client: self.http_client.clone(),
227                    request_limiter: RateLimiter::new(4),
228                }) as Arc<dyn LanguageModel>
229            })
230            .collect()
231    }
232
233    fn is_authenticated(&self, cx: &App) -> bool {
234        self.state.read(cx).is_authenticated()
235    }
236
237    fn authenticate(&self, cx: &mut App) -> Task<Result<(), AuthenticateError>> {
238        self.state.update(cx, |state, cx| state.authenticate(cx))
239    }
240
241    fn configuration_view(
242        &self,
243        _target_agent: language_model::ConfigurationViewTargetAgent,
244        _window: &mut Window,
245        cx: &mut App,
246    ) -> AnyView {
247        let state = self.state.clone();
248        cx.new(|cx| ConfigurationView::new(state, cx)).into()
249    }
250
251    fn reset_credentials(&self, cx: &mut App) -> Task<Result<()>> {
252        self.state.update(cx, |state, cx| state.fetch_models(cx))
253    }
254}
255
256pub struct LmStudioLanguageModel {
257    id: LanguageModelId,
258    model: lmstudio::Model,
259    http_client: Arc<dyn HttpClient>,
260    request_limiter: RateLimiter,
261}
262
263impl LmStudioLanguageModel {
264    fn to_lmstudio_request(
265        &self,
266        request: LanguageModelRequest,
267    ) -> lmstudio::ChatCompletionRequest {
268        let mut messages = Vec::new();
269
270        for message in request.messages {
271            for content in message.content {
272                match content {
273                    MessageContent::Text(text) => add_message_content_part(
274                        lmstudio::MessagePart::Text { text },
275                        message.role,
276                        &mut messages,
277                    ),
278                    MessageContent::Thinking { .. } => {}
279                    MessageContent::RedactedThinking(_) => {}
280                    MessageContent::Image(image) => {
281                        add_message_content_part(
282                            lmstudio::MessagePart::Image {
283                                image_url: lmstudio::ImageUrl {
284                                    url: image.to_base64_url(),
285                                    detail: None,
286                                },
287                            },
288                            message.role,
289                            &mut messages,
290                        );
291                    }
292                    MessageContent::ToolUse(tool_use) => {
293                        let tool_call = lmstudio::ToolCall {
294                            id: tool_use.id.to_string(),
295                            content: lmstudio::ToolCallContent::Function {
296                                function: lmstudio::FunctionContent {
297                                    name: tool_use.name.to_string(),
298                                    arguments: serde_json::to_string(&tool_use.input)
299                                        .unwrap_or_default(),
300                                },
301                            },
302                        };
303
304                        if let Some(lmstudio::ChatMessage::Assistant { tool_calls, .. }) =
305                            messages.last_mut()
306                        {
307                            tool_calls.push(tool_call);
308                        } else {
309                            messages.push(lmstudio::ChatMessage::Assistant {
310                                content: None,
311                                tool_calls: vec![tool_call],
312                            });
313                        }
314                    }
315                    MessageContent::ToolResult(tool_result) => {
316                        let content = match &tool_result.content {
317                            LanguageModelToolResultContent::Text(text) => {
318                                vec![lmstudio::MessagePart::Text {
319                                    text: text.to_string(),
320                                }]
321                            }
322                            LanguageModelToolResultContent::Image(image) => {
323                                vec![lmstudio::MessagePart::Image {
324                                    image_url: lmstudio::ImageUrl {
325                                        url: image.to_base64_url(),
326                                        detail: None,
327                                    },
328                                }]
329                            }
330                        };
331
332                        messages.push(lmstudio::ChatMessage::Tool {
333                            content: content.into(),
334                            tool_call_id: tool_result.tool_use_id.to_string(),
335                        });
336                    }
337                }
338            }
339        }
340
341        lmstudio::ChatCompletionRequest {
342            model: self.model.name.clone(),
343            messages,
344            stream: true,
345            max_tokens: Some(-1),
346            stop: Some(request.stop),
347            // In LM Studio you can configure specific settings you'd like to use for your model.
348            // For example Qwen3 is recommended to be used with 0.7 temperature.
349            // It would be a bad UX to silently override these settings from Zed, so we pass no temperature as a default.
350            temperature: request.temperature.or(None),
351            tools: request
352                .tools
353                .into_iter()
354                .map(|tool| lmstudio::ToolDefinition::Function {
355                    function: lmstudio::FunctionDefinition {
356                        name: tool.name,
357                        description: Some(tool.description),
358                        parameters: Some(tool.input_schema),
359                    },
360                })
361                .collect(),
362            tool_choice: request.tool_choice.map(|choice| match choice {
363                LanguageModelToolChoice::Auto => lmstudio::ToolChoice::Auto,
364                LanguageModelToolChoice::Any => lmstudio::ToolChoice::Required,
365                LanguageModelToolChoice::None => lmstudio::ToolChoice::None,
366            }),
367        }
368    }
369
370    fn stream_completion(
371        &self,
372        request: lmstudio::ChatCompletionRequest,
373        cx: &AsyncApp,
374    ) -> BoxFuture<
375        'static,
376        Result<futures::stream::BoxStream<'static, Result<lmstudio::ResponseStreamEvent>>>,
377    > {
378        let http_client = self.http_client.clone();
379        let api_url = cx.update(|cx| {
380            let settings = &AllLanguageModelSettings::get_global(cx).lmstudio;
381            settings.api_url.clone()
382        });
383
384        let future = self.request_limiter.stream(async move {
385            let request = lmstudio::stream_chat_completion(http_client.as_ref(), &api_url, request);
386            let response = request.await?;
387            Ok(response)
388        });
389
390        async move { Ok(future.await?.boxed()) }.boxed()
391    }
392}
393
394impl LanguageModel for LmStudioLanguageModel {
395    fn id(&self) -> LanguageModelId {
396        self.id.clone()
397    }
398
399    fn name(&self) -> LanguageModelName {
400        LanguageModelName::from(self.model.display_name().to_string())
401    }
402
403    fn provider_id(&self) -> LanguageModelProviderId {
404        PROVIDER_ID
405    }
406
407    fn provider_name(&self) -> LanguageModelProviderName {
408        PROVIDER_NAME
409    }
410
411    fn supports_tools(&self) -> bool {
412        self.model.supports_tool_calls()
413    }
414
415    fn supports_tool_choice(&self, choice: LanguageModelToolChoice) -> bool {
416        self.supports_tools()
417            && match choice {
418                LanguageModelToolChoice::Auto => true,
419                LanguageModelToolChoice::Any => true,
420                LanguageModelToolChoice::None => true,
421            }
422    }
423
424    fn supports_images(&self) -> bool {
425        self.model.supports_images
426    }
427
428    fn telemetry_id(&self) -> String {
429        format!("lmstudio/{}", self.model.id())
430    }
431
432    fn max_token_count(&self) -> u64 {
433        self.model.max_token_count()
434    }
435
436    fn count_tokens(
437        &self,
438        request: LanguageModelRequest,
439        _cx: &App,
440    ) -> BoxFuture<'static, Result<u64>> {
441        // Endpoint for this is coming soon. In the meantime, hacky estimation
442        let token_count = request
443            .messages
444            .iter()
445            .map(|msg| msg.string_contents().split_whitespace().count())
446            .sum::<usize>();
447
448        let estimated_tokens = (token_count as f64 * 0.75) as u64;
449        async move { Ok(estimated_tokens) }.boxed()
450    }
451
452    fn stream_completion(
453        &self,
454        request: LanguageModelRequest,
455        cx: &AsyncApp,
456    ) -> BoxFuture<
457        'static,
458        Result<
459            BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
460            LanguageModelCompletionError,
461        >,
462    > {
463        let request = self.to_lmstudio_request(request);
464        let completions = self.stream_completion(request, cx);
465        async move {
466            let mapper = LmStudioEventMapper::new();
467            Ok(mapper.map_stream(completions.await?).boxed())
468        }
469        .boxed()
470    }
471}
472
473struct LmStudioEventMapper {
474    tool_calls_by_index: HashMap<usize, RawToolCall>,
475}
476
477impl LmStudioEventMapper {
478    fn new() -> Self {
479        Self {
480            tool_calls_by_index: HashMap::default(),
481        }
482    }
483
484    pub fn map_stream(
485        mut self,
486        events: Pin<Box<dyn Send + Stream<Item = Result<lmstudio::ResponseStreamEvent>>>>,
487    ) -> impl Stream<Item = Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>
488    {
489        events.flat_map(move |event| {
490            futures::stream::iter(match event {
491                Ok(event) => self.map_event(event),
492                Err(error) => vec![Err(LanguageModelCompletionError::from(error))],
493            })
494        })
495    }
496
497    pub fn map_event(
498        &mut self,
499        event: lmstudio::ResponseStreamEvent,
500    ) -> Vec<Result<LanguageModelCompletionEvent, LanguageModelCompletionError>> {
501        let Some(choice) = event.choices.into_iter().next() else {
502            return vec![Err(LanguageModelCompletionError::from(anyhow!(
503                "Response contained no choices"
504            )))];
505        };
506
507        let mut events = Vec::new();
508        if let Some(content) = choice.delta.content {
509            events.push(Ok(LanguageModelCompletionEvent::Text(content)));
510        }
511
512        if let Some(reasoning_content) = choice.delta.reasoning_content {
513            events.push(Ok(LanguageModelCompletionEvent::Thinking {
514                text: reasoning_content,
515                signature: None,
516            }));
517        }
518
519        if let Some(tool_calls) = choice.delta.tool_calls {
520            for tool_call in tool_calls {
521                let entry = self.tool_calls_by_index.entry(tool_call.index).or_default();
522
523                if let Some(tool_id) = tool_call.id {
524                    entry.id = tool_id;
525                }
526
527                if let Some(function) = tool_call.function {
528                    if let Some(name) = function.name {
529                        // At the time of writing this code LM Studio (0.3.15) is incompatible with the OpenAI API:
530                        // 1. It sends function name in the first chunk
531                        // 2. It sends empty string in the function name field in all subsequent chunks for arguments
532                        // According to https://platform.openai.com/docs/guides/function-calling?api-mode=responses#streaming
533                        // function name field should be sent only inside the first chunk.
534                        if !name.is_empty() {
535                            entry.name = name;
536                        }
537                    }
538
539                    if let Some(arguments) = function.arguments {
540                        entry.arguments.push_str(&arguments);
541                    }
542                }
543            }
544        }
545
546        if let Some(usage) = event.usage {
547            events.push(Ok(LanguageModelCompletionEvent::UsageUpdate(TokenUsage {
548                input_tokens: usage.prompt_tokens,
549                output_tokens: usage.completion_tokens,
550                cache_creation_input_tokens: 0,
551                cache_read_input_tokens: 0,
552            })));
553        }
554
555        match choice.finish_reason.as_deref() {
556            Some("stop") => {
557                events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::EndTurn)));
558            }
559            Some("tool_calls") => {
560                events.extend(self.tool_calls_by_index.drain().map(|(_, tool_call)| {
561                    match serde_json::Value::from_str(&tool_call.arguments) {
562                        Ok(input) => Ok(LanguageModelCompletionEvent::ToolUse(
563                            LanguageModelToolUse {
564                                id: tool_call.id.into(),
565                                name: tool_call.name.into(),
566                                is_input_complete: true,
567                                input,
568                                raw_input: tool_call.arguments,
569                                thought_signature: None,
570                            },
571                        )),
572                        Err(error) => Ok(LanguageModelCompletionEvent::ToolUseJsonParseError {
573                            id: tool_call.id.into(),
574                            tool_name: tool_call.name.into(),
575                            raw_input: tool_call.arguments.into(),
576                            json_parse_error: error.to_string(),
577                        }),
578                    }
579                }));
580
581                events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::ToolUse)));
582            }
583            Some(stop_reason) => {
584                log::error!("Unexpected LMStudio stop_reason: {stop_reason:?}",);
585                events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::EndTurn)));
586            }
587            None => {}
588        }
589
590        events
591    }
592}
593
594#[derive(Default)]
595struct RawToolCall {
596    id: String,
597    name: String,
598    arguments: String,
599}
600
601fn add_message_content_part(
602    new_part: lmstudio::MessagePart,
603    role: Role,
604    messages: &mut Vec<lmstudio::ChatMessage>,
605) {
606    match (role, messages.last_mut()) {
607        (Role::User, Some(lmstudio::ChatMessage::User { content }))
608        | (
609            Role::Assistant,
610            Some(lmstudio::ChatMessage::Assistant {
611                content: Some(content),
612                ..
613            }),
614        )
615        | (Role::System, Some(lmstudio::ChatMessage::System { content })) => {
616            content.push_part(new_part);
617        }
618        _ => {
619            messages.push(match role {
620                Role::User => lmstudio::ChatMessage::User {
621                    content: lmstudio::MessageContent::from(vec![new_part]),
622                },
623                Role::Assistant => lmstudio::ChatMessage::Assistant {
624                    content: Some(lmstudio::MessageContent::from(vec![new_part])),
625                    tool_calls: Vec::new(),
626                },
627                Role::System => lmstudio::ChatMessage::System {
628                    content: lmstudio::MessageContent::from(vec![new_part]),
629                },
630            });
631        }
632    }
633}
634
635struct ConfigurationView {
636    state: Entity<State>,
637    loading_models_task: Option<Task<()>>,
638}
639
640impl ConfigurationView {
641    pub fn new(state: Entity<State>, cx: &mut Context<Self>) -> Self {
642        let loading_models_task = Some(cx.spawn({
643            let state = state.clone();
644            async move |this, cx| {
645                if let Some(task) = Some(state.update(cx, |state, cx| state.authenticate(cx))) {
646                    task.await.log_err();
647                }
648                this.update(cx, |this, cx| {
649                    this.loading_models_task = None;
650                    cx.notify();
651                })
652                .log_err();
653            }
654        }));
655
656        Self {
657            state,
658            loading_models_task,
659        }
660    }
661
662    fn retry_connection(&self, cx: &mut App) {
663        self.state
664            .update(cx, |state, cx| state.fetch_models(cx))
665            .detach_and_log_err(cx);
666    }
667}
668
669impl Render for ConfigurationView {
670    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
671        let is_authenticated = self.state.read(cx).is_authenticated();
672
673        let lmstudio_intro = "Run local LLMs like Llama, Phi, and Qwen.";
674
675        if self.loading_models_task.is_some() {
676            div().child(Label::new("Loading models...")).into_any()
677        } else {
678            v_flex()
679                .gap_2()
680                .child(
681                    v_flex().gap_1().child(Label::new(lmstudio_intro)).child(
682                        List::new()
683                            .child(ListBulletItem::new(
684                                "LM Studio needs to be running with at least one model downloaded.",
685                            ))
686                            .child(
687                                ListBulletItem::new("")
688                                    .child(Label::new("To get your first model, try running"))
689                                    .child(Label::new("lms get qwen2.5-coder-7b").inline_code(cx)),
690                            ),
691                    ),
692                )
693                .child(
694                    h_flex()
695                        .w_full()
696                        .justify_between()
697                        .gap_2()
698                        .child(
699                            h_flex()
700                                .w_full()
701                                .gap_2()
702                                .map(|this| {
703                                    if is_authenticated {
704                                        this.child(
705                                            Button::new("lmstudio-site", "LM Studio")
706                                                .style(ButtonStyle::Subtle)
707                                                .icon(IconName::ArrowUpRight)
708                                                .icon_size(IconSize::Small)
709                                                .icon_color(Color::Muted)
710                                                .on_click(move |_, _window, cx| {
711                                                    cx.open_url(LMSTUDIO_SITE)
712                                                })
713                                                .into_any_element(),
714                                        )
715                                    } else {
716                                        this.child(
717                                            Button::new(
718                                                "download_lmstudio_button",
719                                                "Download LM Studio",
720                                            )
721                                            .style(ButtonStyle::Subtle)
722                                            .icon(IconName::ArrowUpRight)
723                                            .icon_size(IconSize::Small)
724                                            .icon_color(Color::Muted)
725                                            .on_click(move |_, _window, cx| {
726                                                cx.open_url(LMSTUDIO_DOWNLOAD_URL)
727                                            })
728                                            .into_any_element(),
729                                        )
730                                    }
731                                })
732                                .child(
733                                    Button::new("view-models", "Model Catalog")
734                                        .style(ButtonStyle::Subtle)
735                                        .icon(IconName::ArrowUpRight)
736                                        .icon_size(IconSize::Small)
737                                        .icon_color(Color::Muted)
738                                        .on_click(move |_, _window, cx| {
739                                            cx.open_url(LMSTUDIO_CATALOG_URL)
740                                        }),
741                                ),
742                        )
743                        .map(|this| {
744                            if is_authenticated {
745                                this.child(
746                                    ButtonLike::new("connected")
747                                        .disabled(true)
748                                        .cursor_style(gpui::CursorStyle::Arrow)
749                                        .child(
750                                            h_flex()
751                                                .gap_2()
752                                                .child(Indicator::dot().color(Color::Success))
753                                                .child(Label::new("Connected"))
754                                                .into_any_element(),
755                                        ),
756                                )
757                            } else {
758                                this.child(
759                                    Button::new("retry_lmstudio_models", "Connect")
760                                        .icon_position(IconPosition::Start)
761                                        .icon_size(IconSize::XSmall)
762                                        .icon(IconName::PlayFilled)
763                                        .on_click(cx.listener(move |this, _, _window, cx| {
764                                            this.retry_connection(cx)
765                                        })),
766                                )
767                            }
768                        }),
769                )
770                .into_any()
771        }
772    }
773}