mistral.rs

  1use anyhow::{Context as _, Result, anyhow};
  2use collections::BTreeMap;
  3use credentials_provider::CredentialsProvider;
  4use editor::{Editor, EditorElement, EditorStyle};
  5use futures::{FutureExt, Stream, StreamExt, future::BoxFuture, stream::BoxStream};
  6use gpui::{
  7    AnyView, App, AsyncApp, Context, Entity, FontStyle, Subscription, Task, TextStyle, WhiteSpace,
  8};
  9use http_client::HttpClient;
 10use language_model::{
 11    AuthenticateError, LanguageModel, LanguageModelCompletionError, LanguageModelCompletionEvent,
 12    LanguageModelId, LanguageModelName, LanguageModelProvider, LanguageModelProviderId,
 13    LanguageModelProviderName, LanguageModelProviderState, LanguageModelRequest,
 14    LanguageModelToolChoice, LanguageModelToolResultContent, LanguageModelToolUse, MessageContent,
 15    RateLimiter, Role, StopReason, TokenUsage,
 16};
 17use mistral::StreamResponse;
 18use schemars::JsonSchema;
 19use serde::{Deserialize, Serialize};
 20use settings::{Settings, SettingsStore};
 21use std::collections::HashMap;
 22use std::pin::Pin;
 23use std::str::FromStr;
 24use std::sync::Arc;
 25use strum::IntoEnumIterator;
 26use theme::ThemeSettings;
 27use ui::{Icon, IconName, List, Tooltip, prelude::*};
 28use util::ResultExt;
 29
 30use crate::{AllLanguageModelSettings, ui::InstructionListItem};
 31
 32const PROVIDER_ID: LanguageModelProviderId = LanguageModelProviderId::new("mistral");
 33const PROVIDER_NAME: LanguageModelProviderName = LanguageModelProviderName::new("Mistral");
 34
 35#[derive(Default, Clone, Debug, PartialEq)]
 36pub struct MistralSettings {
 37    pub api_url: String,
 38    pub available_models: Vec<AvailableModel>,
 39}
 40
 41#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, JsonSchema)]
 42pub struct AvailableModel {
 43    pub name: String,
 44    pub display_name: Option<String>,
 45    pub max_tokens: u64,
 46    pub max_output_tokens: Option<u64>,
 47    pub max_completion_tokens: Option<u64>,
 48    pub supports_tools: Option<bool>,
 49    pub supports_images: Option<bool>,
 50}
 51
 52pub struct MistralLanguageModelProvider {
 53    http_client: Arc<dyn HttpClient>,
 54    state: gpui::Entity<State>,
 55}
 56
 57pub struct State {
 58    api_key: Option<String>,
 59    api_key_from_env: bool,
 60    _subscription: Subscription,
 61}
 62
 63const MISTRAL_API_KEY_VAR: &str = "MISTRAL_API_KEY";
 64
 65impl State {
 66    fn is_authenticated(&self) -> bool {
 67        self.api_key.is_some()
 68    }
 69
 70    fn reset_api_key(&self, cx: &mut Context<Self>) -> Task<Result<()>> {
 71        let credentials_provider = <dyn CredentialsProvider>::global(cx);
 72        let api_url = AllLanguageModelSettings::get_global(cx)
 73            .mistral
 74            .api_url
 75            .clone();
 76        cx.spawn(async move |this, cx| {
 77            credentials_provider
 78                .delete_credentials(&api_url, &cx)
 79                .await
 80                .log_err();
 81            this.update(cx, |this, cx| {
 82                this.api_key = None;
 83                this.api_key_from_env = false;
 84                cx.notify();
 85            })
 86        })
 87    }
 88
 89    fn set_api_key(&mut self, api_key: String, cx: &mut Context<Self>) -> Task<Result<()>> {
 90        let credentials_provider = <dyn CredentialsProvider>::global(cx);
 91        let api_url = AllLanguageModelSettings::get_global(cx)
 92            .mistral
 93            .api_url
 94            .clone();
 95        cx.spawn(async move |this, cx| {
 96            credentials_provider
 97                .write_credentials(&api_url, "Bearer", api_key.as_bytes(), &cx)
 98                .await?;
 99            this.update(cx, |this, cx| {
100                this.api_key = Some(api_key);
101                cx.notify();
102            })
103        })
104    }
105
106    fn authenticate(&self, cx: &mut Context<Self>) -> Task<Result<(), AuthenticateError>> {
107        if self.is_authenticated() {
108            return Task::ready(Ok(()));
109        }
110
111        let credentials_provider = <dyn CredentialsProvider>::global(cx);
112        let api_url = AllLanguageModelSettings::get_global(cx)
113            .mistral
114            .api_url
115            .clone();
116        cx.spawn(async move |this, cx| {
117            let (api_key, from_env) = if let Ok(api_key) = std::env::var(MISTRAL_API_KEY_VAR) {
118                (api_key, true)
119            } else {
120                let (_, api_key) = credentials_provider
121                    .read_credentials(&api_url, &cx)
122                    .await?
123                    .ok_or(AuthenticateError::CredentialsNotFound)?;
124                (
125                    String::from_utf8(api_key).context("invalid {PROVIDER_NAME} API key")?,
126                    false,
127                )
128            };
129            this.update(cx, |this, cx| {
130                this.api_key = Some(api_key);
131                this.api_key_from_env = from_env;
132                cx.notify();
133            })?;
134
135            Ok(())
136        })
137    }
138}
139
140impl MistralLanguageModelProvider {
141    pub fn new(http_client: Arc<dyn HttpClient>, cx: &mut App) -> Self {
142        let state = cx.new(|cx| State {
143            api_key: None,
144            api_key_from_env: false,
145            _subscription: cx.observe_global::<SettingsStore>(|_this: &mut State, cx| {
146                cx.notify();
147            }),
148        });
149
150        Self { http_client, state }
151    }
152
153    fn create_language_model(&self, model: mistral::Model) -> Arc<dyn LanguageModel> {
154        Arc::new(MistralLanguageModel {
155            id: LanguageModelId::from(model.id().to_string()),
156            model,
157            state: self.state.clone(),
158            http_client: self.http_client.clone(),
159            request_limiter: RateLimiter::new(4),
160        })
161    }
162}
163
164impl LanguageModelProviderState for MistralLanguageModelProvider {
165    type ObservableEntity = State;
166
167    fn observable_entity(&self) -> Option<gpui::Entity<Self::ObservableEntity>> {
168        Some(self.state.clone())
169    }
170}
171
172impl LanguageModelProvider for MistralLanguageModelProvider {
173    fn id(&self) -> LanguageModelProviderId {
174        PROVIDER_ID
175    }
176
177    fn name(&self) -> LanguageModelProviderName {
178        PROVIDER_NAME
179    }
180
181    fn icon(&self) -> IconName {
182        IconName::AiMistral
183    }
184
185    fn default_model(&self, _cx: &App) -> Option<Arc<dyn LanguageModel>> {
186        Some(self.create_language_model(mistral::Model::default()))
187    }
188
189    fn default_fast_model(&self, _cx: &App) -> Option<Arc<dyn LanguageModel>> {
190        Some(self.create_language_model(mistral::Model::default_fast()))
191    }
192
193    fn provided_models(&self, cx: &App) -> Vec<Arc<dyn LanguageModel>> {
194        let mut models = BTreeMap::default();
195
196        // Add base models from mistral::Model::iter()
197        for model in mistral::Model::iter() {
198            if !matches!(model, mistral::Model::Custom { .. }) {
199                models.insert(model.id().to_string(), model);
200            }
201        }
202
203        // Override with available models from settings
204        for model in &AllLanguageModelSettings::get_global(cx)
205            .mistral
206            .available_models
207        {
208            models.insert(
209                model.name.clone(),
210                mistral::Model::Custom {
211                    name: model.name.clone(),
212                    display_name: model.display_name.clone(),
213                    max_tokens: model.max_tokens,
214                    max_output_tokens: model.max_output_tokens,
215                    max_completion_tokens: model.max_completion_tokens,
216                    supports_tools: model.supports_tools,
217                    supports_images: model.supports_images,
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        PROVIDER_ID
302    }
303
304    fn provider_name(&self) -> LanguageModelProviderName {
305        PROVIDER_NAME
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        self.model.supports_images()
318    }
319
320    fn telemetry_id(&self) -> String {
321        format!("mistral/{}", self.model.id())
322    }
323
324    fn max_token_count(&self) -> u64 {
325        self.model.max_token_count()
326    }
327
328    fn max_output_tokens(&self) -> Option<u64> {
329        self.model.max_output_tokens()
330    }
331
332    fn count_tokens(
333        &self,
334        request: LanguageModelRequest,
335        cx: &App,
336    ) -> BoxFuture<'static, Result<u64>> {
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).map(|tokens| tokens as u64)
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            LanguageModelCompletionError,
367        >,
368    > {
369        let request = into_mistral(
370            request,
371            self.model.id().to_string(),
372            self.max_output_tokens(),
373        );
374        let stream = self.stream_completion(request, cx);
375
376        async move {
377            let stream = stream.await?;
378            let mapper = MistralEventMapper::new();
379            Ok(mapper.map_stream(stream).boxed())
380        }
381        .boxed()
382    }
383}
384
385pub fn into_mistral(
386    request: LanguageModelRequest,
387    model: String,
388    max_output_tokens: Option<u64>,
389) -> mistral::Request {
390    let stream = true;
391
392    let mut messages = Vec::new();
393    for message in &request.messages {
394        match message.role {
395            Role::User => {
396                let mut message_content = mistral::MessageContent::empty();
397                for content in &message.content {
398                    match content {
399                        MessageContent::Text(text) => {
400                            message_content
401                                .push_part(mistral::MessagePart::Text { text: text.clone() });
402                        }
403                        MessageContent::Image(image_content) => {
404                            message_content.push_part(mistral::MessagePart::ImageUrl {
405                                image_url: image_content.to_base64_url(),
406                            });
407                        }
408                        MessageContent::Thinking { text, .. } => {
409                            message_content
410                                .push_part(mistral::MessagePart::Text { text: text.clone() });
411                        }
412                        MessageContent::RedactedThinking(_) => {}
413                        MessageContent::ToolUse(_) | MessageContent::ToolResult(_) => {
414                            // Tool content is not supported in User messages for Mistral
415                        }
416                    }
417                }
418                if !matches!(message_content, mistral::MessageContent::Plain { ref content } if content.is_empty())
419                {
420                    messages.push(mistral::RequestMessage::User {
421                        content: message_content,
422                    });
423                }
424            }
425            Role::Assistant => {
426                for content in &message.content {
427                    match content {
428                        MessageContent::Text(text) | MessageContent::Thinking { text, .. } => {
429                            messages.push(mistral::RequestMessage::Assistant {
430                                content: Some(text.clone()),
431                                tool_calls: Vec::new(),
432                            });
433                        }
434                        MessageContent::RedactedThinking(_) => {}
435                        MessageContent::Image(_) => {}
436                        MessageContent::ToolUse(tool_use) => {
437                            let tool_call = mistral::ToolCall {
438                                id: tool_use.id.to_string(),
439                                content: mistral::ToolCallContent::Function {
440                                    function: mistral::FunctionContent {
441                                        name: tool_use.name.to_string(),
442                                        arguments: serde_json::to_string(&tool_use.input)
443                                            .unwrap_or_default(),
444                                    },
445                                },
446                            };
447
448                            if let Some(mistral::RequestMessage::Assistant { tool_calls, .. }) =
449                                messages.last_mut()
450                            {
451                                tool_calls.push(tool_call);
452                            } else {
453                                messages.push(mistral::RequestMessage::Assistant {
454                                    content: None,
455                                    tool_calls: vec![tool_call],
456                                });
457                            }
458                        }
459                        MessageContent::ToolResult(_) => {
460                            // Tool results are not supported in Assistant messages
461                        }
462                    }
463                }
464            }
465            Role::System => {
466                for content in &message.content {
467                    match content {
468                        MessageContent::Text(text) | MessageContent::Thinking { text, .. } => {
469                            messages.push(mistral::RequestMessage::System {
470                                content: text.clone(),
471                            });
472                        }
473                        MessageContent::RedactedThinking(_) => {}
474                        MessageContent::Image(_)
475                        | MessageContent::ToolUse(_)
476                        | MessageContent::ToolResult(_) => {
477                            // Images and tools are not supported in System messages
478                        }
479                    }
480                }
481            }
482        }
483    }
484
485    for message in &request.messages {
486        for content in &message.content {
487            if let MessageContent::ToolResult(tool_result) = content {
488                let content = match &tool_result.content {
489                    LanguageModelToolResultContent::Text(text) => text.to_string(),
490                    LanguageModelToolResultContent::Image(_) => {
491                        "[Tool responded with an image, but Zed doesn't support these in Mistral models yet]".to_string()
492                    }
493                };
494
495                messages.push(mistral::RequestMessage::Tool {
496                    content,
497                    tool_call_id: tool_result.tool_use_id.to_string(),
498                });
499            }
500        }
501    }
502
503    // The Mistral API requires that tool messages be followed by assistant messages,
504    // not user messages. When we have a tool->user sequence in the conversation,
505    // we need to insert a placeholder assistant message to maintain proper conversation
506    // flow and prevent API errors. This is a Mistral-specific requirement that differs
507    // from other language model APIs.
508    let messages = {
509        let mut fixed_messages = Vec::with_capacity(messages.len());
510        let mut messages_iter = messages.into_iter().peekable();
511
512        while let Some(message) = messages_iter.next() {
513            let is_tool_message = matches!(message, mistral::RequestMessage::Tool { .. });
514            fixed_messages.push(message);
515
516            // Insert assistant message between tool and user messages
517            if is_tool_message {
518                if let Some(next_msg) = messages_iter.peek() {
519                    if matches!(next_msg, mistral::RequestMessage::User { .. }) {
520                        fixed_messages.push(mistral::RequestMessage::Assistant {
521                            content: Some(" ".to_string()),
522                            tool_calls: Vec::new(),
523                        });
524                    }
525                }
526            }
527        }
528
529        fixed_messages
530    };
531
532    mistral::Request {
533        model,
534        messages,
535        stream,
536        max_tokens: max_output_tokens,
537        temperature: request.temperature,
538        response_format: None,
539        tool_choice: match request.tool_choice {
540            Some(LanguageModelToolChoice::Auto) if !request.tools.is_empty() => {
541                Some(mistral::ToolChoice::Auto)
542            }
543            Some(LanguageModelToolChoice::Any) if !request.tools.is_empty() => {
544                Some(mistral::ToolChoice::Any)
545            }
546            Some(LanguageModelToolChoice::None) => Some(mistral::ToolChoice::None),
547            _ if !request.tools.is_empty() => Some(mistral::ToolChoice::Auto),
548            _ => None,
549        },
550        parallel_tool_calls: if !request.tools.is_empty() {
551            Some(false)
552        } else {
553            None
554        },
555        tools: request
556            .tools
557            .into_iter()
558            .map(|tool| mistral::ToolDefinition::Function {
559                function: mistral::FunctionDefinition {
560                    name: tool.name,
561                    description: Some(tool.description),
562                    parameters: Some(tool.input_schema),
563                },
564            })
565            .collect(),
566    }
567}
568
569pub struct MistralEventMapper {
570    tool_calls_by_index: HashMap<usize, RawToolCall>,
571}
572
573impl MistralEventMapper {
574    pub fn new() -> Self {
575        Self {
576            tool_calls_by_index: HashMap::default(),
577        }
578    }
579
580    pub fn map_stream(
581        mut self,
582        events: Pin<Box<dyn Send + Stream<Item = Result<StreamResponse>>>>,
583    ) -> impl Stream<Item = Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>
584    {
585        events.flat_map(move |event| {
586            futures::stream::iter(match event {
587                Ok(event) => self.map_event(event),
588                Err(error) => vec![Err(LanguageModelCompletionError::from(error))],
589            })
590        })
591    }
592
593    pub fn map_event(
594        &mut self,
595        event: mistral::StreamResponse,
596    ) -> Vec<Result<LanguageModelCompletionEvent, LanguageModelCompletionError>> {
597        let Some(choice) = event.choices.first() else {
598            return vec![Err(LanguageModelCompletionError::from(anyhow!(
599                "Response contained no choices"
600            )))];
601        };
602
603        let mut events = Vec::new();
604        if let Some(content) = choice.delta.content.clone() {
605            events.push(Ok(LanguageModelCompletionEvent::Text(content)));
606        }
607
608        if let Some(tool_calls) = choice.delta.tool_calls.as_ref() {
609            for tool_call in tool_calls {
610                let entry = self.tool_calls_by_index.entry(tool_call.index).or_default();
611
612                if let Some(tool_id) = tool_call.id.clone() {
613                    entry.id = tool_id;
614                }
615
616                if let Some(function) = tool_call.function.as_ref() {
617                    if let Some(name) = function.name.clone() {
618                        entry.name = name;
619                    }
620
621                    if let Some(arguments) = function.arguments.clone() {
622                        entry.arguments.push_str(&arguments);
623                    }
624                }
625            }
626        }
627
628        if let Some(usage) = event.usage {
629            events.push(Ok(LanguageModelCompletionEvent::UsageUpdate(TokenUsage {
630                input_tokens: usage.prompt_tokens,
631                output_tokens: usage.completion_tokens,
632                cache_creation_input_tokens: 0,
633                cache_read_input_tokens: 0,
634            })));
635        }
636
637        if let Some(finish_reason) = choice.finish_reason.as_deref() {
638            match finish_reason {
639                "stop" => {
640                    events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::EndTurn)));
641                }
642                "tool_calls" => {
643                    events.extend(self.process_tool_calls());
644                    events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::ToolUse)));
645                }
646                unexpected => {
647                    log::error!("Unexpected Mistral stop_reason: {unexpected:?}");
648                    events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::EndTurn)));
649                }
650            }
651        }
652
653        events
654    }
655
656    fn process_tool_calls(
657        &mut self,
658    ) -> Vec<Result<LanguageModelCompletionEvent, LanguageModelCompletionError>> {
659        let mut results = Vec::new();
660
661        for (_, tool_call) in self.tool_calls_by_index.drain() {
662            if tool_call.id.is_empty() || tool_call.name.is_empty() {
663                results.push(Err(LanguageModelCompletionError::from(anyhow!(
664                    "Received incomplete tool call: missing id or name"
665                ))));
666                continue;
667            }
668
669            match serde_json::Value::from_str(&tool_call.arguments) {
670                Ok(input) => results.push(Ok(LanguageModelCompletionEvent::ToolUse(
671                    LanguageModelToolUse {
672                        id: tool_call.id.into(),
673                        name: tool_call.name.into(),
674                        is_input_complete: true,
675                        input,
676                        raw_input: tool_call.arguments,
677                    },
678                ))),
679                Err(error) => {
680                    results.push(Ok(LanguageModelCompletionEvent::ToolUseJsonParseError {
681                        id: tool_call.id.into(),
682                        tool_name: tool_call.name.into(),
683                        raw_input: tool_call.arguments.into(),
684                        json_parse_error: error.to_string(),
685                    }))
686                }
687            }
688        }
689
690        results
691    }
692}
693
694#[derive(Default)]
695struct RawToolCall {
696    id: String,
697    name: String,
698    arguments: String,
699}
700
701struct ConfigurationView {
702    api_key_editor: Entity<Editor>,
703    state: gpui::Entity<State>,
704    load_credentials_task: Option<Task<()>>,
705}
706
707impl ConfigurationView {
708    fn new(state: gpui::Entity<State>, window: &mut Window, cx: &mut Context<Self>) -> Self {
709        let api_key_editor = cx.new(|cx| {
710            let mut editor = Editor::single_line(window, cx);
711            editor.set_placeholder_text("0aBCDEFGhIjKLmNOpqrSTUVwxyzabCDE1f2", cx);
712            editor
713        });
714
715        cx.observe(&state, |_, _, cx| {
716            cx.notify();
717        })
718        .detach();
719
720        let load_credentials_task = Some(cx.spawn_in(window, {
721            let state = state.clone();
722            async move |this, cx| {
723                if let Some(task) = state
724                    .update(cx, |state, cx| state.authenticate(cx))
725                    .log_err()
726                {
727                    // We don't log an error, because "not signed in" is also an error.
728                    let _ = task.await;
729                }
730
731                this.update(cx, |this, cx| {
732                    this.load_credentials_task = None;
733                    cx.notify();
734                })
735                .log_err();
736            }
737        }));
738
739        Self {
740            api_key_editor,
741            state,
742            load_credentials_task,
743        }
744    }
745
746    fn save_api_key(&mut self, _: &menu::Confirm, window: &mut Window, cx: &mut Context<Self>) {
747        let api_key = self.api_key_editor.read(cx).text(cx);
748        if api_key.is_empty() {
749            return;
750        }
751
752        let state = self.state.clone();
753        cx.spawn_in(window, async move |_, cx| {
754            state
755                .update(cx, |state, cx| state.set_api_key(api_key, cx))?
756                .await
757        })
758        .detach_and_log_err(cx);
759
760        cx.notify();
761    }
762
763    fn reset_api_key(&mut self, window: &mut Window, cx: &mut Context<Self>) {
764        self.api_key_editor
765            .update(cx, |editor, cx| editor.set_text("", window, cx));
766
767        let state = self.state.clone();
768        cx.spawn_in(window, async move |_, cx| {
769            state.update(cx, |state, cx| state.reset_api_key(cx))?.await
770        })
771        .detach_and_log_err(cx);
772
773        cx.notify();
774    }
775
776    fn render_api_key_editor(&self, cx: &mut Context<Self>) -> impl IntoElement {
777        let settings = ThemeSettings::get_global(cx);
778        let text_style = TextStyle {
779            color: cx.theme().colors().text,
780            font_family: settings.ui_font.family.clone(),
781            font_features: settings.ui_font.features.clone(),
782            font_fallbacks: settings.ui_font.fallbacks.clone(),
783            font_size: rems(0.875).into(),
784            font_weight: settings.ui_font.weight,
785            font_style: FontStyle::Normal,
786            line_height: relative(1.3),
787            white_space: WhiteSpace::Normal,
788            ..Default::default()
789        };
790        EditorElement::new(
791            &self.api_key_editor,
792            EditorStyle {
793                background: cx.theme().colors().editor_background,
794                local_player: cx.theme().players().local(),
795                text: text_style,
796                ..Default::default()
797            },
798        )
799    }
800
801    fn should_render_editor(&self, cx: &mut Context<Self>) -> bool {
802        !self.state.read(cx).is_authenticated()
803    }
804}
805
806impl Render for ConfigurationView {
807    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
808        let env_var_set = self.state.read(cx).api_key_from_env;
809
810        if self.load_credentials_task.is_some() {
811            div().child(Label::new("Loading credentials...")).into_any()
812        } else if self.should_render_editor(cx) {
813            v_flex()
814                .size_full()
815                .on_action(cx.listener(Self::save_api_key))
816                .child(Label::new("To use Zed's assistant with Mistral, you need to add an API key. Follow these steps:"))
817                .child(
818                    List::new()
819                        .child(InstructionListItem::new(
820                            "Create one by visiting",
821                            Some("Mistral's console"),
822                            Some("https://console.mistral.ai/api-keys"),
823                        ))
824                        .child(InstructionListItem::text_only(
825                            "Ensure your Mistral account has credits",
826                        ))
827                        .child(InstructionListItem::text_only(
828                            "Paste your API key below and hit enter to start using the assistant",
829                        )),
830                )
831                .child(
832                    h_flex()
833                        .w_full()
834                        .my_2()
835                        .px_2()
836                        .py_1()
837                        .bg(cx.theme().colors().editor_background)
838                        .border_1()
839                        .border_color(cx.theme().colors().border)
840                        .rounded_sm()
841                        .child(self.render_api_key_editor(cx)),
842                )
843                .child(
844                    Label::new(
845                        format!("You can also assign the {MISTRAL_API_KEY_VAR} environment variable and restart Zed."),
846                    )
847                    .size(LabelSize::Small).color(Color::Muted),
848                )
849                .into_any()
850        } else {
851            h_flex()
852                .mt_1()
853                .p_1()
854                .justify_between()
855                .rounded_md()
856                .border_1()
857                .border_color(cx.theme().colors().border)
858                .bg(cx.theme().colors().background)
859                .child(
860                    h_flex()
861                        .gap_1()
862                        .child(Icon::new(IconName::Check).color(Color::Success))
863                        .child(Label::new(if env_var_set {
864                            format!("API key set in {MISTRAL_API_KEY_VAR} environment variable.")
865                        } else {
866                            "API key configured.".to_string()
867                        })),
868                )
869                .child(
870                    Button::new("reset-key", "Reset Key")
871                        .label_size(LabelSize::Small)
872                        .icon(Some(IconName::Trash))
873                        .icon_size(IconSize::Small)
874                        .icon_position(IconPosition::Start)
875                        .disabled(env_var_set)
876                        .when(env_var_set, |this| {
877                            this.tooltip(Tooltip::text(format!("To reset your API key, unset the {MISTRAL_API_KEY_VAR} environment variable.")))
878                        })
879                        .on_click(cx.listener(|this, _, window, cx| this.reset_api_key(window, cx))),
880                )
881                .into_any()
882        }
883    }
884}
885
886#[cfg(test)]
887mod tests {
888    use super::*;
889    use language_model::{LanguageModelImage, LanguageModelRequestMessage, MessageContent};
890
891    #[test]
892    fn test_into_mistral_basic_conversion() {
893        let request = LanguageModelRequest {
894            messages: vec![
895                LanguageModelRequestMessage {
896                    role: Role::System,
897                    content: vec![MessageContent::Text("System prompt".into())],
898                    cache: false,
899                },
900                LanguageModelRequestMessage {
901                    role: Role::User,
902                    content: vec![MessageContent::Text("Hello".into())],
903                    cache: false,
904                },
905            ],
906            temperature: Some(0.5),
907            tools: vec![],
908            tool_choice: None,
909            thread_id: None,
910            prompt_id: None,
911            intent: None,
912            mode: None,
913            stop: vec![],
914            thinking_allowed: true,
915        };
916
917        let mistral_request = into_mistral(request, "mistral-small-latest".into(), None);
918
919        assert_eq!(mistral_request.model, "mistral-small-latest");
920        assert_eq!(mistral_request.temperature, Some(0.5));
921        assert_eq!(mistral_request.messages.len(), 2);
922        assert!(mistral_request.stream);
923    }
924
925    #[test]
926    fn test_into_mistral_with_image() {
927        let request = LanguageModelRequest {
928            messages: vec![LanguageModelRequestMessage {
929                role: Role::User,
930                content: vec![
931                    MessageContent::Text("What's in this image?".into()),
932                    MessageContent::Image(LanguageModelImage {
933                        source: "base64data".into(),
934                        size: Default::default(),
935                    }),
936                ],
937                cache: false,
938            }],
939            tools: vec![],
940            tool_choice: None,
941            temperature: None,
942            thread_id: None,
943            prompt_id: None,
944            intent: None,
945            mode: None,
946            stop: vec![],
947            thinking_allowed: true,
948        };
949
950        let mistral_request = into_mistral(request, "pixtral-12b-latest".into(), None);
951
952        assert_eq!(mistral_request.messages.len(), 1);
953        assert!(matches!(
954            &mistral_request.messages[0],
955            mistral::RequestMessage::User {
956                content: mistral::MessageContent::Multipart { .. }
957            }
958        ));
959
960        if let mistral::RequestMessage::User {
961            content: mistral::MessageContent::Multipart { content },
962        } = &mistral_request.messages[0]
963        {
964            assert_eq!(content.len(), 2);
965            assert!(matches!(
966                &content[0],
967                mistral::MessagePart::Text { text } if text == "What's in this image?"
968            ));
969            assert!(matches!(
970                &content[1],
971                mistral::MessagePart::ImageUrl { image_url } if image_url.starts_with("data:image/png;base64,")
972            ));
973        }
974    }
975}