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    // The Mistral API requires that tool messages be followed by assistant messages,
448    // not user messages. When we have a tool->user sequence in the conversation,
449    // we need to insert a placeholder assistant message to maintain proper conversation
450    // flow and prevent API errors. This is a Mistral-specific requirement that differs
451    // from other language model APIs.
452    let messages = {
453        let mut fixed_messages = Vec::with_capacity(messages.len());
454        let mut messages_iter = messages.into_iter().peekable();
455
456        while let Some(message) = messages_iter.next() {
457            let is_tool_message = matches!(message, mistral::RequestMessage::Tool { .. });
458            fixed_messages.push(message);
459
460            // Insert assistant message between tool and user messages
461            if is_tool_message {
462                if let Some(next_msg) = messages_iter.peek() {
463                    if matches!(next_msg, mistral::RequestMessage::User { .. }) {
464                        fixed_messages.push(mistral::RequestMessage::Assistant {
465                            content: Some(" ".to_string()),
466                            tool_calls: Vec::new(),
467                        });
468                    }
469                }
470            }
471        }
472
473        fixed_messages
474    };
475
476    mistral::Request {
477        model,
478        messages,
479        stream,
480        max_tokens: max_output_tokens,
481        temperature: request.temperature,
482        response_format: None,
483        tool_choice: match request.tool_choice {
484            Some(LanguageModelToolChoice::Auto) if !request.tools.is_empty() => {
485                Some(mistral::ToolChoice::Auto)
486            }
487            Some(LanguageModelToolChoice::Any) if !request.tools.is_empty() => {
488                Some(mistral::ToolChoice::Any)
489            }
490            Some(LanguageModelToolChoice::None) => Some(mistral::ToolChoice::None),
491            _ if !request.tools.is_empty() => Some(mistral::ToolChoice::Auto),
492            _ => None,
493        },
494        parallel_tool_calls: if !request.tools.is_empty() {
495            Some(false)
496        } else {
497            None
498        },
499        tools: request
500            .tools
501            .into_iter()
502            .map(|tool| mistral::ToolDefinition::Function {
503                function: mistral::FunctionDefinition {
504                    name: tool.name,
505                    description: Some(tool.description),
506                    parameters: Some(tool.input_schema),
507                },
508            })
509            .collect(),
510    }
511}
512
513pub struct MistralEventMapper {
514    tool_calls_by_index: HashMap<usize, RawToolCall>,
515}
516
517impl MistralEventMapper {
518    pub fn new() -> Self {
519        Self {
520            tool_calls_by_index: HashMap::default(),
521        }
522    }
523
524    pub fn map_stream(
525        mut self,
526        events: Pin<Box<dyn Send + futures::Stream<Item = Result<mistral::StreamResponse>>>>,
527    ) -> impl futures::Stream<Item = Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>
528    {
529        events.flat_map(move |event| {
530            futures::stream::iter(match event {
531                Ok(event) => self.map_event(event),
532                Err(error) => vec![Err(LanguageModelCompletionError::Other(anyhow!(error)))],
533            })
534        })
535    }
536
537    pub fn map_event(
538        &mut self,
539        event: mistral::StreamResponse,
540    ) -> Vec<Result<LanguageModelCompletionEvent, LanguageModelCompletionError>> {
541        let Some(choice) = event.choices.first() else {
542            return vec![Err(LanguageModelCompletionError::Other(anyhow!(
543                "Response contained no choices"
544            )))];
545        };
546
547        let mut events = Vec::new();
548        if let Some(content) = choice.delta.content.clone() {
549            events.push(Ok(LanguageModelCompletionEvent::Text(content)));
550        }
551
552        if let Some(tool_calls) = choice.delta.tool_calls.as_ref() {
553            for tool_call in tool_calls {
554                let entry = self.tool_calls_by_index.entry(tool_call.index).or_default();
555
556                if let Some(tool_id) = tool_call.id.clone() {
557                    entry.id = tool_id;
558                }
559
560                if let Some(function) = tool_call.function.as_ref() {
561                    if let Some(name) = function.name.clone() {
562                        entry.name = name;
563                    }
564
565                    if let Some(arguments) = function.arguments.clone() {
566                        entry.arguments.push_str(&arguments);
567                    }
568                }
569            }
570        }
571
572        if let Some(finish_reason) = choice.finish_reason.as_deref() {
573            match finish_reason {
574                "stop" => {
575                    events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::EndTurn)));
576                }
577                "tool_calls" => {
578                    events.extend(self.process_tool_calls());
579                    events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::ToolUse)));
580                }
581                unexpected => {
582                    log::error!("Unexpected Mistral stop_reason: {unexpected:?}");
583                    events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::EndTurn)));
584                }
585            }
586        }
587
588        events
589    }
590
591    fn process_tool_calls(
592        &mut self,
593    ) -> Vec<Result<LanguageModelCompletionEvent, LanguageModelCompletionError>> {
594        let mut results = Vec::new();
595
596        for (_, tool_call) in self.tool_calls_by_index.drain() {
597            if tool_call.id.is_empty() || tool_call.name.is_empty() {
598                results.push(Err(LanguageModelCompletionError::Other(anyhow!(
599                    "Received incomplete tool call: missing id or name"
600                ))));
601                continue;
602            }
603
604            match serde_json::Value::from_str(&tool_call.arguments) {
605                Ok(input) => results.push(Ok(LanguageModelCompletionEvent::ToolUse(
606                    LanguageModelToolUse {
607                        id: tool_call.id.into(),
608                        name: tool_call.name.into(),
609                        is_input_complete: true,
610                        input,
611                        raw_input: tool_call.arguments,
612                    },
613                ))),
614                Err(error) => results.push(Err(LanguageModelCompletionError::BadInputJson {
615                    id: tool_call.id.into(),
616                    tool_name: tool_call.name.into(),
617                    raw_input: tool_call.arguments.into(),
618                    json_parse_error: error.to_string(),
619                })),
620            }
621        }
622
623        results
624    }
625}
626
627#[derive(Default)]
628struct RawToolCall {
629    id: String,
630    name: String,
631    arguments: String,
632}
633
634struct ConfigurationView {
635    api_key_editor: Entity<Editor>,
636    state: gpui::Entity<State>,
637    load_credentials_task: Option<Task<()>>,
638}
639
640impl ConfigurationView {
641    fn new(state: gpui::Entity<State>, window: &mut Window, cx: &mut Context<Self>) -> Self {
642        let api_key_editor = cx.new(|cx| {
643            let mut editor = Editor::single_line(window, cx);
644            editor.set_placeholder_text("0aBCDEFGhIjKLmNOpqrSTUVwxyzabCDE1f2", cx);
645            editor
646        });
647
648        cx.observe(&state, |_, _, cx| {
649            cx.notify();
650        })
651        .detach();
652
653        let load_credentials_task = Some(cx.spawn_in(window, {
654            let state = state.clone();
655            async move |this, cx| {
656                if let Some(task) = state
657                    .update(cx, |state, cx| state.authenticate(cx))
658                    .log_err()
659                {
660                    // We don't log an error, because "not signed in" is also an error.
661                    let _ = task.await;
662                }
663
664                this.update(cx, |this, cx| {
665                    this.load_credentials_task = None;
666                    cx.notify();
667                })
668                .log_err();
669            }
670        }));
671
672        Self {
673            api_key_editor,
674            state,
675            load_credentials_task,
676        }
677    }
678
679    fn save_api_key(&mut self, _: &menu::Confirm, window: &mut Window, cx: &mut Context<Self>) {
680        let api_key = self.api_key_editor.read(cx).text(cx);
681        if api_key.is_empty() {
682            return;
683        }
684
685        let state = self.state.clone();
686        cx.spawn_in(window, async move |_, cx| {
687            state
688                .update(cx, |state, cx| state.set_api_key(api_key, cx))?
689                .await
690        })
691        .detach_and_log_err(cx);
692
693        cx.notify();
694    }
695
696    fn reset_api_key(&mut self, window: &mut Window, cx: &mut Context<Self>) {
697        self.api_key_editor
698            .update(cx, |editor, cx| editor.set_text("", window, cx));
699
700        let state = self.state.clone();
701        cx.spawn_in(window, async move |_, cx| {
702            state.update(cx, |state, cx| state.reset_api_key(cx))?.await
703        })
704        .detach_and_log_err(cx);
705
706        cx.notify();
707    }
708
709    fn render_api_key_editor(&self, cx: &mut Context<Self>) -> impl IntoElement {
710        let settings = ThemeSettings::get_global(cx);
711        let text_style = TextStyle {
712            color: cx.theme().colors().text,
713            font_family: settings.ui_font.family.clone(),
714            font_features: settings.ui_font.features.clone(),
715            font_fallbacks: settings.ui_font.fallbacks.clone(),
716            font_size: rems(0.875).into(),
717            font_weight: settings.ui_font.weight,
718            font_style: FontStyle::Normal,
719            line_height: relative(1.3),
720            white_space: WhiteSpace::Normal,
721            ..Default::default()
722        };
723        EditorElement::new(
724            &self.api_key_editor,
725            EditorStyle {
726                background: cx.theme().colors().editor_background,
727                local_player: cx.theme().players().local(),
728                text: text_style,
729                ..Default::default()
730            },
731        )
732    }
733
734    fn should_render_editor(&self, cx: &mut Context<Self>) -> bool {
735        !self.state.read(cx).is_authenticated()
736    }
737}
738
739impl Render for ConfigurationView {
740    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
741        let env_var_set = self.state.read(cx).api_key_from_env;
742
743        if self.load_credentials_task.is_some() {
744            div().child(Label::new("Loading credentials...")).into_any()
745        } else if self.should_render_editor(cx) {
746            v_flex()
747                .size_full()
748                .on_action(cx.listener(Self::save_api_key))
749                .child(Label::new("To use Zed's assistant with Mistral, you need to add an API key. Follow these steps:"))
750                .child(
751                    List::new()
752                        .child(InstructionListItem::new(
753                            "Create one by visiting",
754                            Some("Mistral's console"),
755                            Some("https://console.mistral.ai/api-keys"),
756                        ))
757                        .child(InstructionListItem::text_only(
758                            "Ensure your Mistral account has credits",
759                        ))
760                        .child(InstructionListItem::text_only(
761                            "Paste your API key below and hit enter to start using the assistant",
762                        )),
763                )
764                .child(
765                    h_flex()
766                        .w_full()
767                        .my_2()
768                        .px_2()
769                        .py_1()
770                        .bg(cx.theme().colors().editor_background)
771                        .border_1()
772                        .border_color(cx.theme().colors().border)
773                        .rounded_sm()
774                        .child(self.render_api_key_editor(cx)),
775                )
776                .child(
777                    Label::new(
778                        format!("You can also assign the {MISTRAL_API_KEY_VAR} environment variable and restart Zed."),
779                    )
780                    .size(LabelSize::Small).color(Color::Muted),
781                )
782                .into_any()
783        } else {
784            h_flex()
785                .mt_1()
786                .p_1()
787                .justify_between()
788                .rounded_md()
789                .border_1()
790                .border_color(cx.theme().colors().border)
791                .bg(cx.theme().colors().background)
792                .child(
793                    h_flex()
794                        .gap_1()
795                        .child(Icon::new(IconName::Check).color(Color::Success))
796                        .child(Label::new(if env_var_set {
797                            format!("API key set in {MISTRAL_API_KEY_VAR} environment variable.")
798                        } else {
799                            "API key configured.".to_string()
800                        })),
801                )
802                .child(
803                    Button::new("reset-key", "Reset Key")
804                        .label_size(LabelSize::Small)
805                        .icon(Some(IconName::Trash))
806                        .icon_size(IconSize::Small)
807                        .icon_position(IconPosition::Start)
808                        .disabled(env_var_set)
809                        .when(env_var_set, |this| {
810                            this.tooltip(Tooltip::text(format!("To reset your API key, unset the {MISTRAL_API_KEY_VAR} environment variable.")))
811                        })
812                        .on_click(cx.listener(|this, _, window, cx| this.reset_api_key(window, cx))),
813                )
814                .into_any()
815        }
816    }
817}
818
819#[cfg(test)]
820mod tests {
821    use super::*;
822    use language_model;
823
824    #[test]
825    fn test_into_mistral_conversion() {
826        let request = language_model::LanguageModelRequest {
827            messages: vec![
828                language_model::LanguageModelRequestMessage {
829                    role: language_model::Role::System,
830                    content: vec![language_model::MessageContent::Text(
831                        "You are a helpful assistant.".to_string(),
832                    )],
833                    cache: false,
834                },
835                language_model::LanguageModelRequestMessage {
836                    role: language_model::Role::User,
837                    content: vec![language_model::MessageContent::Text(
838                        "Hello, how are you?".to_string(),
839                    )],
840                    cache: false,
841                },
842            ],
843            temperature: Some(0.7),
844            tools: Vec::new(),
845            tool_choice: None,
846            thread_id: None,
847            prompt_id: None,
848            intent: None,
849            mode: None,
850            stop: Vec::new(),
851        };
852
853        let model_name = "mistral-medium-latest".to_string();
854        let max_output_tokens = Some(1000);
855        let mistral_request = into_mistral(request, model_name, max_output_tokens);
856
857        assert_eq!(mistral_request.model, "mistral-medium-latest");
858        assert_eq!(mistral_request.temperature, Some(0.7));
859        assert_eq!(mistral_request.max_tokens, Some(1000));
860        assert!(mistral_request.stream);
861        assert!(mistral_request.tools.is_empty());
862        assert!(mistral_request.tool_choice.is_none());
863
864        assert_eq!(mistral_request.messages.len(), 2);
865
866        match &mistral_request.messages[0] {
867            mistral::RequestMessage::System { content } => {
868                assert_eq!(content, "You are a helpful assistant.");
869            }
870            _ => panic!("Expected System message"),
871        }
872
873        match &mistral_request.messages[1] {
874            mistral::RequestMessage::User { content } => {
875                assert_eq!(content, "Hello, how are you?");
876            }
877            _ => panic!("Expected User message"),
878        }
879    }
880}