mistral.rs

  1use anyhow::{Context as _, Result, anyhow};
  2use collections::BTreeMap;
  3use credentials_provider::CredentialsProvider;
  4use editor::{Editor, EditorElement, EditorStyle};
  5use futures::stream::BoxStream;
  6use futures::{FutureExt, StreamExt, future::BoxFuture};
  7use gpui::{
  8    AnyView, App, AsyncApp, Context, Entity, FontStyle, Subscription, Task, TextStyle, WhiteSpace,
  9};
 10use http_client::HttpClient;
 11use language_model::{
 12    AuthenticateError, LanguageModel, LanguageModelCompletionError, LanguageModelCompletionEvent,
 13    LanguageModelId, LanguageModelName, LanguageModelProvider, LanguageModelProviderId,
 14    LanguageModelProviderName, LanguageModelProviderState, LanguageModelRequest,
 15    LanguageModelToolChoice, LanguageModelToolResultContent, LanguageModelToolUse, MessageContent,
 16    RateLimiter, Role, StopReason,
 17};
 18use schemars::JsonSchema;
 19use serde::{Deserialize, Serialize};
 20use settings::{Settings, SettingsStore};
 21use std::str::FromStr;
 22use std::sync::Arc;
 23use strum::IntoEnumIterator;
 24use theme::ThemeSettings;
 25use ui::{Icon, IconName, List, Tooltip, prelude::*};
 26use util::ResultExt;
 27
 28use crate::{AllLanguageModelSettings, ui::InstructionListItem};
 29
 30use std::collections::HashMap;
 31use std::pin::Pin;
 32
 33const PROVIDER_ID: &str = "mistral";
 34const PROVIDER_NAME: &str = "Mistral";
 35
 36#[derive(Default, Clone, Debug, PartialEq)]
 37pub struct MistralSettings {
 38    pub api_url: String,
 39    pub available_models: Vec<AvailableModel>,
 40    pub needs_setting_migration: bool,
 41}
 42
 43#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, JsonSchema)]
 44pub struct AvailableModel {
 45    pub name: String,
 46    pub display_name: Option<String>,
 47    pub max_tokens: usize,
 48    pub max_output_tokens: Option<u32>,
 49    pub max_completion_tokens: Option<u32>,
 50    pub supports_tools: Option<bool>,
 51}
 52
 53pub struct MistralLanguageModelProvider {
 54    http_client: Arc<dyn HttpClient>,
 55    state: gpui::Entity<State>,
 56}
 57
 58pub struct State {
 59    api_key: Option<String>,
 60    api_key_from_env: bool,
 61    _subscription: Subscription,
 62}
 63
 64const MISTRAL_API_KEY_VAR: &str = "MISTRAL_API_KEY";
 65
 66impl State {
 67    fn is_authenticated(&self) -> bool {
 68        self.api_key.is_some()
 69    }
 70
 71    fn reset_api_key(&self, cx: &mut Context<Self>) -> Task<Result<()>> {
 72        let credentials_provider = <dyn CredentialsProvider>::global(cx);
 73        let api_url = AllLanguageModelSettings::get_global(cx)
 74            .mistral
 75            .api_url
 76            .clone();
 77        cx.spawn(async move |this, cx| {
 78            credentials_provider
 79                .delete_credentials(&api_url, &cx)
 80                .await
 81                .log_err();
 82            this.update(cx, |this, cx| {
 83                this.api_key = None;
 84                this.api_key_from_env = false;
 85                cx.notify();
 86            })
 87        })
 88    }
 89
 90    fn set_api_key(&mut self, api_key: String, cx: &mut Context<Self>) -> Task<Result<()>> {
 91        let credentials_provider = <dyn CredentialsProvider>::global(cx);
 92        let api_url = AllLanguageModelSettings::get_global(cx)
 93            .mistral
 94            .api_url
 95            .clone();
 96        cx.spawn(async move |this, cx| {
 97            credentials_provider
 98                .write_credentials(&api_url, "Bearer", api_key.as_bytes(), &cx)
 99                .await?;
100            this.update(cx, |this, cx| {
101                this.api_key = Some(api_key);
102                cx.notify();
103            })
104        })
105    }
106
107    fn authenticate(&self, cx: &mut Context<Self>) -> Task<Result<(), AuthenticateError>> {
108        if self.is_authenticated() {
109            return Task::ready(Ok(()));
110        }
111
112        let credentials_provider = <dyn CredentialsProvider>::global(cx);
113        let api_url = AllLanguageModelSettings::get_global(cx)
114            .mistral
115            .api_url
116            .clone();
117        cx.spawn(async move |this, cx| {
118            let (api_key, from_env) = if let Ok(api_key) = std::env::var(MISTRAL_API_KEY_VAR) {
119                (api_key, true)
120            } else {
121                let (_, api_key) = credentials_provider
122                    .read_credentials(&api_url, &cx)
123                    .await?
124                    .ok_or(AuthenticateError::CredentialsNotFound)?;
125                (
126                    String::from_utf8(api_key).context("invalid {PROVIDER_NAME} API key")?,
127                    false,
128                )
129            };
130            this.update(cx, |this, cx| {
131                this.api_key = Some(api_key);
132                this.api_key_from_env = from_env;
133                cx.notify();
134            })?;
135
136            Ok(())
137        })
138    }
139}
140
141impl MistralLanguageModelProvider {
142    pub fn new(http_client: Arc<dyn HttpClient>, cx: &mut App) -> Self {
143        let state = cx.new(|cx| State {
144            api_key: None,
145            api_key_from_env: false,
146            _subscription: cx.observe_global::<SettingsStore>(|_this: &mut State, cx| {
147                cx.notify();
148            }),
149        });
150
151        Self { http_client, state }
152    }
153
154    fn create_language_model(&self, model: mistral::Model) -> Arc<dyn LanguageModel> {
155        Arc::new(MistralLanguageModel {
156            id: LanguageModelId::from(model.id().to_string()),
157            model,
158            state: self.state.clone(),
159            http_client: self.http_client.clone(),
160            request_limiter: RateLimiter::new(4),
161        })
162    }
163}
164
165impl LanguageModelProviderState for MistralLanguageModelProvider {
166    type ObservableEntity = State;
167
168    fn observable_entity(&self) -> Option<gpui::Entity<Self::ObservableEntity>> {
169        Some(self.state.clone())
170    }
171}
172
173impl LanguageModelProvider for MistralLanguageModelProvider {
174    fn id(&self) -> LanguageModelProviderId {
175        LanguageModelProviderId(PROVIDER_ID.into())
176    }
177
178    fn name(&self) -> LanguageModelProviderName {
179        LanguageModelProviderName(PROVIDER_NAME.into())
180    }
181
182    fn icon(&self) -> IconName {
183        IconName::AiMistral
184    }
185
186    fn default_model(&self, _cx: &App) -> Option<Arc<dyn LanguageModel>> {
187        Some(self.create_language_model(mistral::Model::default()))
188    }
189
190    fn default_fast_model(&self, _cx: &App) -> Option<Arc<dyn LanguageModel>> {
191        Some(self.create_language_model(mistral::Model::default_fast()))
192    }
193
194    fn provided_models(&self, cx: &App) -> Vec<Arc<dyn LanguageModel>> {
195        let mut models = BTreeMap::default();
196
197        // Add base models from mistral::Model::iter()
198        for model in mistral::Model::iter() {
199            if !matches!(model, mistral::Model::Custom { .. }) {
200                models.insert(model.id().to_string(), model);
201            }
202        }
203
204        // Override with available models from settings
205        for model in &AllLanguageModelSettings::get_global(cx)
206            .mistral
207            .available_models
208        {
209            models.insert(
210                model.name.clone(),
211                mistral::Model::Custom {
212                    name: model.name.clone(),
213                    display_name: model.display_name.clone(),
214                    max_tokens: model.max_tokens,
215                    max_output_tokens: model.max_output_tokens,
216                    max_completion_tokens: model.max_completion_tokens,
217                    supports_tools: model.supports_tools,
218                },
219            );
220        }
221
222        models
223            .into_values()
224            .map(|model| {
225                Arc::new(MistralLanguageModel {
226                    id: LanguageModelId::from(model.id().to_string()),
227                    model,
228                    state: self.state.clone(),
229                    http_client: self.http_client.clone(),
230                    request_limiter: RateLimiter::new(4),
231                }) as Arc<dyn LanguageModel>
232            })
233            .collect()
234    }
235
236    fn is_authenticated(&self, cx: &App) -> bool {
237        self.state.read(cx).is_authenticated()
238    }
239
240    fn authenticate(&self, cx: &mut App) -> Task<Result<(), AuthenticateError>> {
241        self.state.update(cx, |state, cx| state.authenticate(cx))
242    }
243
244    fn configuration_view(&self, window: &mut Window, cx: &mut App) -> AnyView {
245        cx.new(|cx| ConfigurationView::new(self.state.clone(), window, cx))
246            .into()
247    }
248
249    fn reset_credentials(&self, cx: &mut App) -> Task<Result<()>> {
250        self.state.update(cx, |state, cx| state.reset_api_key(cx))
251    }
252}
253
254pub struct MistralLanguageModel {
255    id: LanguageModelId,
256    model: mistral::Model,
257    state: gpui::Entity<State>,
258    http_client: Arc<dyn HttpClient>,
259    request_limiter: RateLimiter,
260}
261
262impl MistralLanguageModel {
263    fn stream_completion(
264        &self,
265        request: mistral::Request,
266        cx: &AsyncApp,
267    ) -> BoxFuture<
268        'static,
269        Result<futures::stream::BoxStream<'static, Result<mistral::StreamResponse>>>,
270    > {
271        let http_client = self.http_client.clone();
272        let Ok((api_key, api_url)) = cx.read_entity(&self.state, |state, cx| {
273            let settings = &AllLanguageModelSettings::get_global(cx).mistral;
274            (state.api_key.clone(), settings.api_url.clone())
275        }) else {
276            return futures::future::ready(Err(anyhow!("App state dropped"))).boxed();
277        };
278
279        let future = self.request_limiter.stream(async move {
280            let api_key = api_key.context("Missing Mistral API Key")?;
281            let request =
282                mistral::stream_completion(http_client.as_ref(), &api_url, &api_key, request);
283            let response = request.await?;
284            Ok(response)
285        });
286
287        async move { Ok(future.await?.boxed()) }.boxed()
288    }
289}
290
291impl LanguageModel for MistralLanguageModel {
292    fn id(&self) -> LanguageModelId {
293        self.id.clone()
294    }
295
296    fn name(&self) -> LanguageModelName {
297        LanguageModelName::from(self.model.display_name().to_string())
298    }
299
300    fn provider_id(&self) -> LanguageModelProviderId {
301        LanguageModelProviderId(PROVIDER_ID.into())
302    }
303
304    fn provider_name(&self) -> LanguageModelProviderName {
305        LanguageModelProviderName(PROVIDER_NAME.into())
306    }
307
308    fn supports_tools(&self) -> bool {
309        self.model.supports_tools()
310    }
311
312    fn supports_tool_choice(&self, _choice: LanguageModelToolChoice) -> bool {
313        self.model.supports_tools()
314    }
315
316    fn supports_images(&self) -> bool {
317        false
318    }
319
320    fn telemetry_id(&self) -> String {
321        format!("mistral/{}", self.model.id())
322    }
323
324    fn max_token_count(&self) -> usize {
325        self.model.max_token_count()
326    }
327
328    fn max_output_tokens(&self) -> Option<u32> {
329        self.model.max_output_tokens()
330    }
331
332    fn count_tokens(
333        &self,
334        request: LanguageModelRequest,
335        cx: &App,
336    ) -> BoxFuture<'static, Result<usize>> {
337        cx.background_spawn(async move {
338            let messages = request
339                .messages
340                .into_iter()
341                .map(|message| tiktoken_rs::ChatCompletionRequestMessage {
342                    role: match message.role {
343                        Role::User => "user".into(),
344                        Role::Assistant => "assistant".into(),
345                        Role::System => "system".into(),
346                    },
347                    content: Some(message.string_contents()),
348                    name: None,
349                    function_call: None,
350                })
351                .collect::<Vec<_>>();
352
353            tiktoken_rs::num_tokens_from_messages("gpt-4", &messages)
354        })
355        .boxed()
356    }
357
358    fn stream_completion(
359        &self,
360        request: LanguageModelRequest,
361        cx: &AsyncApp,
362    ) -> BoxFuture<
363        'static,
364        Result<
365            BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
366        >,
367    > {
368        let request = into_mistral(
369            request,
370            self.model.id().to_string(),
371            self.max_output_tokens(),
372        );
373        let stream = self.stream_completion(request, cx);
374
375        async move {
376            let stream = stream.await?;
377            let mapper = MistralEventMapper::new();
378            Ok(mapper.map_stream(stream).boxed())
379        }
380        .boxed()
381    }
382}
383
384pub fn into_mistral(
385    request: LanguageModelRequest,
386    model: String,
387    max_output_tokens: Option<u32>,
388) -> mistral::Request {
389    let stream = true;
390
391    let mut messages = Vec::new();
392    for message in request.messages {
393        for content in message.content {
394            match content {
395                MessageContent::Text(text) | MessageContent::Thinking { text, .. } => messages
396                    .push(match message.role {
397                        Role::User => mistral::RequestMessage::User { content: text },
398                        Role::Assistant => mistral::RequestMessage::Assistant {
399                            content: Some(text),
400                            tool_calls: Vec::new(),
401                        },
402                        Role::System => mistral::RequestMessage::System { content: text },
403                    }),
404                MessageContent::RedactedThinking(_) => {}
405                MessageContent::Image(_) => {}
406                MessageContent::ToolUse(tool_use) => {
407                    let tool_call = mistral::ToolCall {
408                        id: tool_use.id.to_string(),
409                        content: mistral::ToolCallContent::Function {
410                            function: mistral::FunctionContent {
411                                name: tool_use.name.to_string(),
412                                arguments: serde_json::to_string(&tool_use.input)
413                                    .unwrap_or_default(),
414                            },
415                        },
416                    };
417
418                    if let Some(mistral::RequestMessage::Assistant { tool_calls, .. }) =
419                        messages.last_mut()
420                    {
421                        tool_calls.push(tool_call);
422                    } else {
423                        messages.push(mistral::RequestMessage::Assistant {
424                            content: None,
425                            tool_calls: vec![tool_call],
426                        });
427                    }
428                }
429                MessageContent::ToolResult(tool_result) => {
430                    let content = match &tool_result.content {
431                        LanguageModelToolResultContent::Text(text) => text.to_string(),
432                        LanguageModelToolResultContent::Image(_) => {
433                            // TODO: Mistral image support
434                            "[Tool responded with an image, but Zed doesn't support these in Mistral models yet]".to_string()
435                        }
436                    };
437
438                    messages.push(mistral::RequestMessage::Tool {
439                        content,
440                        tool_call_id: tool_result.tool_use_id.to_string(),
441                    });
442                }
443            }
444        }
445    }
446
447    mistral::Request {
448        model,
449        messages,
450        stream,
451        max_tokens: max_output_tokens,
452        temperature: request.temperature,
453        response_format: None,
454        tool_choice: match request.tool_choice {
455            Some(LanguageModelToolChoice::Auto) if !request.tools.is_empty() => {
456                Some(mistral::ToolChoice::Auto)
457            }
458            Some(LanguageModelToolChoice::Any) if !request.tools.is_empty() => {
459                Some(mistral::ToolChoice::Any)
460            }
461            Some(LanguageModelToolChoice::None) => Some(mistral::ToolChoice::None),
462            _ if !request.tools.is_empty() => Some(mistral::ToolChoice::Auto),
463            _ => None,
464        },
465        parallel_tool_calls: if !request.tools.is_empty() {
466            Some(false)
467        } else {
468            None
469        },
470        tools: request
471            .tools
472            .into_iter()
473            .map(|tool| mistral::ToolDefinition::Function {
474                function: mistral::FunctionDefinition {
475                    name: tool.name,
476                    description: Some(tool.description),
477                    parameters: Some(tool.input_schema),
478                },
479            })
480            .collect(),
481    }
482}
483
484pub struct MistralEventMapper {
485    tool_calls_by_index: HashMap<usize, RawToolCall>,
486}
487
488impl MistralEventMapper {
489    pub fn new() -> Self {
490        Self {
491            tool_calls_by_index: HashMap::default(),
492        }
493    }
494
495    pub fn map_stream(
496        mut self,
497        events: Pin<Box<dyn Send + futures::Stream<Item = Result<mistral::StreamResponse>>>>,
498    ) -> impl futures::Stream<Item = Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>
499    {
500        events.flat_map(move |event| {
501            futures::stream::iter(match event {
502                Ok(event) => self.map_event(event),
503                Err(error) => vec![Err(LanguageModelCompletionError::Other(anyhow!(error)))],
504            })
505        })
506    }
507
508    pub fn map_event(
509        &mut self,
510        event: mistral::StreamResponse,
511    ) -> Vec<Result<LanguageModelCompletionEvent, LanguageModelCompletionError>> {
512        let Some(choice) = event.choices.first() else {
513            return vec![Err(LanguageModelCompletionError::Other(anyhow!(
514                "Response contained no choices"
515            )))];
516        };
517
518        let mut events = Vec::new();
519        if let Some(content) = choice.delta.content.clone() {
520            events.push(Ok(LanguageModelCompletionEvent::Text(content)));
521        }
522
523        if let Some(tool_calls) = choice.delta.tool_calls.as_ref() {
524            for tool_call in tool_calls {
525                let entry = self.tool_calls_by_index.entry(tool_call.index).or_default();
526
527                if let Some(tool_id) = tool_call.id.clone() {
528                    entry.id = tool_id;
529                }
530
531                if let Some(function) = tool_call.function.as_ref() {
532                    if let Some(name) = function.name.clone() {
533                        entry.name = name;
534                    }
535
536                    if let Some(arguments) = function.arguments.clone() {
537                        entry.arguments.push_str(&arguments);
538                    }
539                }
540            }
541        }
542
543        if let Some(finish_reason) = choice.finish_reason.as_deref() {
544            match finish_reason {
545                "stop" => {
546                    events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::EndTurn)));
547                }
548                "tool_calls" => {
549                    events.extend(self.process_tool_calls());
550                    events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::ToolUse)));
551                }
552                unexpected => {
553                    log::error!("Unexpected Mistral stop_reason: {unexpected:?}");
554                    events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::EndTurn)));
555                }
556            }
557        }
558
559        events
560    }
561
562    fn process_tool_calls(
563        &mut self,
564    ) -> Vec<Result<LanguageModelCompletionEvent, LanguageModelCompletionError>> {
565        let mut results = Vec::new();
566
567        for (_, tool_call) in self.tool_calls_by_index.drain() {
568            if tool_call.id.is_empty() || tool_call.name.is_empty() {
569                results.push(Err(LanguageModelCompletionError::Other(anyhow!(
570                    "Received incomplete tool call: missing id or name"
571                ))));
572                continue;
573            }
574
575            match serde_json::Value::from_str(&tool_call.arguments) {
576                Ok(input) => results.push(Ok(LanguageModelCompletionEvent::ToolUse(
577                    LanguageModelToolUse {
578                        id: tool_call.id.into(),
579                        name: tool_call.name.into(),
580                        is_input_complete: true,
581                        input,
582                        raw_input: tool_call.arguments,
583                    },
584                ))),
585                Err(error) => results.push(Err(LanguageModelCompletionError::BadInputJson {
586                    id: tool_call.id.into(),
587                    tool_name: tool_call.name.into(),
588                    raw_input: tool_call.arguments.into(),
589                    json_parse_error: error.to_string(),
590                })),
591            }
592        }
593
594        results
595    }
596}
597
598#[derive(Default)]
599struct RawToolCall {
600    id: String,
601    name: String,
602    arguments: String,
603}
604
605struct ConfigurationView {
606    api_key_editor: Entity<Editor>,
607    state: gpui::Entity<State>,
608    load_credentials_task: Option<Task<()>>,
609}
610
611impl ConfigurationView {
612    fn new(state: gpui::Entity<State>, window: &mut Window, cx: &mut Context<Self>) -> Self {
613        let api_key_editor = cx.new(|cx| {
614            let mut editor = Editor::single_line(window, cx);
615            editor.set_placeholder_text("0aBCDEFGhIjKLmNOpqrSTUVwxyzabCDE1f2", cx);
616            editor
617        });
618
619        cx.observe(&state, |_, _, cx| {
620            cx.notify();
621        })
622        .detach();
623
624        let load_credentials_task = Some(cx.spawn_in(window, {
625            let state = state.clone();
626            async move |this, cx| {
627                if let Some(task) = state
628                    .update(cx, |state, cx| state.authenticate(cx))
629                    .log_err()
630                {
631                    // We don't log an error, because "not signed in" is also an error.
632                    let _ = task.await;
633                }
634
635                this.update(cx, |this, cx| {
636                    this.load_credentials_task = None;
637                    cx.notify();
638                })
639                .log_err();
640            }
641        }));
642
643        Self {
644            api_key_editor,
645            state,
646            load_credentials_task,
647        }
648    }
649
650    fn save_api_key(&mut self, _: &menu::Confirm, window: &mut Window, cx: &mut Context<Self>) {
651        let api_key = self.api_key_editor.read(cx).text(cx);
652        if api_key.is_empty() {
653            return;
654        }
655
656        let state = self.state.clone();
657        cx.spawn_in(window, async move |_, cx| {
658            state
659                .update(cx, |state, cx| state.set_api_key(api_key, cx))?
660                .await
661        })
662        .detach_and_log_err(cx);
663
664        cx.notify();
665    }
666
667    fn reset_api_key(&mut self, window: &mut Window, cx: &mut Context<Self>) {
668        self.api_key_editor
669            .update(cx, |editor, cx| editor.set_text("", window, cx));
670
671        let state = self.state.clone();
672        cx.spawn_in(window, async move |_, cx| {
673            state.update(cx, |state, cx| state.reset_api_key(cx))?.await
674        })
675        .detach_and_log_err(cx);
676
677        cx.notify();
678    }
679
680    fn render_api_key_editor(&self, cx: &mut Context<Self>) -> impl IntoElement {
681        let settings = ThemeSettings::get_global(cx);
682        let text_style = TextStyle {
683            color: cx.theme().colors().text,
684            font_family: settings.ui_font.family.clone(),
685            font_features: settings.ui_font.features.clone(),
686            font_fallbacks: settings.ui_font.fallbacks.clone(),
687            font_size: rems(0.875).into(),
688            font_weight: settings.ui_font.weight,
689            font_style: FontStyle::Normal,
690            line_height: relative(1.3),
691            white_space: WhiteSpace::Normal,
692            ..Default::default()
693        };
694        EditorElement::new(
695            &self.api_key_editor,
696            EditorStyle {
697                background: cx.theme().colors().editor_background,
698                local_player: cx.theme().players().local(),
699                text: text_style,
700                ..Default::default()
701            },
702        )
703    }
704
705    fn should_render_editor(&self, cx: &mut Context<Self>) -> bool {
706        !self.state.read(cx).is_authenticated()
707    }
708}
709
710impl Render for ConfigurationView {
711    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
712        let env_var_set = self.state.read(cx).api_key_from_env;
713
714        if self.load_credentials_task.is_some() {
715            div().child(Label::new("Loading credentials...")).into_any()
716        } else if self.should_render_editor(cx) {
717            v_flex()
718                .size_full()
719                .on_action(cx.listener(Self::save_api_key))
720                .child(Label::new("To use Zed's assistant with Mistral, you need to add an API key. Follow these steps:"))
721                .child(
722                    List::new()
723                        .child(InstructionListItem::new(
724                            "Create one by visiting",
725                            Some("Mistral's console"),
726                            Some("https://console.mistral.ai/api-keys"),
727                        ))
728                        .child(InstructionListItem::text_only(
729                            "Ensure your Mistral account has credits",
730                        ))
731                        .child(InstructionListItem::text_only(
732                            "Paste your API key below and hit enter to start using the assistant",
733                        )),
734                )
735                .child(
736                    h_flex()
737                        .w_full()
738                        .my_2()
739                        .px_2()
740                        .py_1()
741                        .bg(cx.theme().colors().editor_background)
742                        .border_1()
743                        .border_color(cx.theme().colors().border)
744                        .rounded_sm()
745                        .child(self.render_api_key_editor(cx)),
746                )
747                .child(
748                    Label::new(
749                        format!("You can also assign the {MISTRAL_API_KEY_VAR} environment variable and restart Zed."),
750                    )
751                    .size(LabelSize::Small).color(Color::Muted),
752                )
753                .into_any()
754        } else {
755            h_flex()
756                .mt_1()
757                .p_1()
758                .justify_between()
759                .rounded_md()
760                .border_1()
761                .border_color(cx.theme().colors().border)
762                .bg(cx.theme().colors().background)
763                .child(
764                    h_flex()
765                        .gap_1()
766                        .child(Icon::new(IconName::Check).color(Color::Success))
767                        .child(Label::new(if env_var_set {
768                            format!("API key set in {MISTRAL_API_KEY_VAR} environment variable.")
769                        } else {
770                            "API key configured.".to_string()
771                        })),
772                )
773                .child(
774                    Button::new("reset-key", "Reset Key")
775                        .label_size(LabelSize::Small)
776                        .icon(Some(IconName::Trash))
777                        .icon_size(IconSize::Small)
778                        .icon_position(IconPosition::Start)
779                        .disabled(env_var_set)
780                        .when(env_var_set, |this| {
781                            this.tooltip(Tooltip::text(format!("To reset your API key, unset the {MISTRAL_API_KEY_VAR} environment variable.")))
782                        })
783                        .on_click(cx.listener(|this, _, window, cx| this.reset_api_key(window, cx))),
784                )
785                .into_any()
786        }
787    }
788}
789
790#[cfg(test)]
791mod tests {
792    use super::*;
793    use language_model;
794
795    #[test]
796    fn test_into_mistral_conversion() {
797        let request = language_model::LanguageModelRequest {
798            messages: vec![
799                language_model::LanguageModelRequestMessage {
800                    role: language_model::Role::System,
801                    content: vec![language_model::MessageContent::Text(
802                        "You are a helpful assistant.".to_string(),
803                    )],
804                    cache: false,
805                },
806                language_model::LanguageModelRequestMessage {
807                    role: language_model::Role::User,
808                    content: vec![language_model::MessageContent::Text(
809                        "Hello, how are you?".to_string(),
810                    )],
811                    cache: false,
812                },
813            ],
814            temperature: Some(0.7),
815            tools: Vec::new(),
816            tool_choice: None,
817            thread_id: None,
818            prompt_id: None,
819            intent: None,
820            mode: None,
821            stop: Vec::new(),
822        };
823
824        let model_name = "mistral-medium-latest".to_string();
825        let max_output_tokens = Some(1000);
826        let mistral_request = into_mistral(request, model_name, max_output_tokens);
827
828        assert_eq!(mistral_request.model, "mistral-medium-latest");
829        assert_eq!(mistral_request.temperature, Some(0.7));
830        assert_eq!(mistral_request.max_tokens, Some(1000));
831        assert!(mistral_request.stream);
832        assert!(mistral_request.tools.is_empty());
833        assert!(mistral_request.tool_choice.is_none());
834
835        assert_eq!(mistral_request.messages.len(), 2);
836
837        match &mistral_request.messages[0] {
838            mistral::RequestMessage::System { content } => {
839                assert_eq!(content, "You are a helpful assistant.");
840            }
841            _ => panic!("Expected System message"),
842        }
843
844        match &mistral_request.messages[1] {
845            mistral::RequestMessage::User { content } => {
846                assert_eq!(content, "Hello, how are you?");
847            }
848            _ => panic!("Expected User message"),
849        }
850    }
851}