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, TokenUsage,
 17};
 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: &str = "mistral";
 33const PROVIDER_NAME: &str = "Mistral";
 34
 35#[derive(Default, Clone, Debug, PartialEq)]
 36pub struct MistralSettings {
 37    pub api_url: String,
 38    pub available_models: Vec<AvailableModel>,
 39    pub needs_setting_migration: bool,
 40}
 41
 42#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, JsonSchema)]
 43pub struct AvailableModel {
 44    pub name: String,
 45    pub display_name: Option<String>,
 46    pub max_tokens: u64,
 47    pub max_output_tokens: Option<u64>,
 48    pub max_completion_tokens: Option<u64>,
 49    pub supports_tools: Option<bool>,
 50    pub supports_images: 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                    supports_images: model.supports_images,
219                },
220            );
221        }
222
223        models
224            .into_values()
225            .map(|model| {
226                Arc::new(MistralLanguageModel {
227                    id: LanguageModelId::from(model.id().to_string()),
228                    model,
229                    state: self.state.clone(),
230                    http_client: self.http_client.clone(),
231                    request_limiter: RateLimiter::new(4),
232                }) as Arc<dyn LanguageModel>
233            })
234            .collect()
235    }
236
237    fn is_authenticated(&self, cx: &App) -> bool {
238        self.state.read(cx).is_authenticated()
239    }
240
241    fn authenticate(&self, cx: &mut App) -> Task<Result<(), AuthenticateError>> {
242        self.state.update(cx, |state, cx| state.authenticate(cx))
243    }
244
245    fn configuration_view(&self, window: &mut Window, cx: &mut App) -> AnyView {
246        cx.new(|cx| ConfigurationView::new(self.state.clone(), window, cx))
247            .into()
248    }
249
250    fn reset_credentials(&self, cx: &mut App) -> Task<Result<()>> {
251        self.state.update(cx, |state, cx| state.reset_api_key(cx))
252    }
253}
254
255pub struct MistralLanguageModel {
256    id: LanguageModelId,
257    model: mistral::Model,
258    state: gpui::Entity<State>,
259    http_client: Arc<dyn HttpClient>,
260    request_limiter: RateLimiter,
261}
262
263impl MistralLanguageModel {
264    fn stream_completion(
265        &self,
266        request: mistral::Request,
267        cx: &AsyncApp,
268    ) -> BoxFuture<
269        'static,
270        Result<futures::stream::BoxStream<'static, Result<mistral::StreamResponse>>>,
271    > {
272        let http_client = self.http_client.clone();
273        let Ok((api_key, api_url)) = cx.read_entity(&self.state, |state, cx| {
274            let settings = &AllLanguageModelSettings::get_global(cx).mistral;
275            (state.api_key.clone(), settings.api_url.clone())
276        }) else {
277            return futures::future::ready(Err(anyhow!("App state dropped"))).boxed();
278        };
279
280        let future = self.request_limiter.stream(async move {
281            let api_key = api_key.context("Missing Mistral API Key")?;
282            let request =
283                mistral::stream_completion(http_client.as_ref(), &api_url, &api_key, request);
284            let response = request.await?;
285            Ok(response)
286        });
287
288        async move { Ok(future.await?.boxed()) }.boxed()
289    }
290}
291
292impl LanguageModel for MistralLanguageModel {
293    fn id(&self) -> LanguageModelId {
294        self.id.clone()
295    }
296
297    fn name(&self) -> LanguageModelName {
298        LanguageModelName::from(self.model.display_name().to_string())
299    }
300
301    fn provider_id(&self) -> LanguageModelProviderId {
302        LanguageModelProviderId(PROVIDER_ID.into())
303    }
304
305    fn provider_name(&self) -> LanguageModelProviderName {
306        LanguageModelProviderName(PROVIDER_NAME.into())
307    }
308
309    fn supports_tools(&self) -> bool {
310        self.model.supports_tools()
311    }
312
313    fn supports_tool_choice(&self, _choice: LanguageModelToolChoice) -> bool {
314        self.model.supports_tools()
315    }
316
317    fn supports_images(&self) -> bool {
318        self.model.supports_images()
319    }
320
321    fn telemetry_id(&self) -> String {
322        format!("mistral/{}", self.model.id())
323    }
324
325    fn max_token_count(&self) -> u64 {
326        self.model.max_token_count()
327    }
328
329    fn max_output_tokens(&self) -> Option<u64> {
330        self.model.max_output_tokens()
331    }
332
333    fn count_tokens(
334        &self,
335        request: LanguageModelRequest,
336        cx: &App,
337    ) -> BoxFuture<'static, Result<u64>> {
338        cx.background_spawn(async move {
339            let messages = request
340                .messages
341                .into_iter()
342                .map(|message| tiktoken_rs::ChatCompletionRequestMessage {
343                    role: match message.role {
344                        Role::User => "user".into(),
345                        Role::Assistant => "assistant".into(),
346                        Role::System => "system".into(),
347                    },
348                    content: Some(message.string_contents()),
349                    name: None,
350                    function_call: None,
351                })
352                .collect::<Vec<_>>();
353
354            tiktoken_rs::num_tokens_from_messages("gpt-4", &messages).map(|tokens| tokens as u64)
355        })
356        .boxed()
357    }
358
359    fn stream_completion(
360        &self,
361        request: LanguageModelRequest,
362        cx: &AsyncApp,
363    ) -> BoxFuture<
364        'static,
365        Result<
366            BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
367            LanguageModelCompletionError,
368        >,
369    > {
370        let request = into_mistral(
371            request,
372            self.model.id().to_string(),
373            self.max_output_tokens(),
374        );
375        let stream = self.stream_completion(request, cx);
376
377        async move {
378            let stream = stream.await?;
379            let mapper = MistralEventMapper::new();
380            Ok(mapper.map_stream(stream).boxed())
381        }
382        .boxed()
383    }
384}
385
386pub fn into_mistral(
387    request: LanguageModelRequest,
388    model: String,
389    max_output_tokens: Option<u64>,
390) -> mistral::Request {
391    let stream = true;
392
393    let mut messages = Vec::new();
394    for message in &request.messages {
395        match message.role {
396            Role::User => {
397                let mut message_content = mistral::MessageContent::empty();
398                for content in &message.content {
399                    match content {
400                        MessageContent::Text(text) => {
401                            message_content
402                                .push_part(mistral::MessagePart::Text { text: text.clone() });
403                        }
404                        MessageContent::Image(image_content) => {
405                            message_content.push_part(mistral::MessagePart::ImageUrl {
406                                image_url: image_content.to_base64_url(),
407                            });
408                        }
409                        MessageContent::Thinking { text, .. } => {
410                            message_content
411                                .push_part(mistral::MessagePart::Text { text: text.clone() });
412                        }
413                        MessageContent::RedactedThinking(_) => {}
414                        MessageContent::ToolUse(_) | MessageContent::ToolResult(_) => {
415                            // Tool content is not supported in User messages for Mistral
416                        }
417                    }
418                }
419                if !matches!(message_content, mistral::MessageContent::Plain { ref content } if content.is_empty())
420                {
421                    messages.push(mistral::RequestMessage::User {
422                        content: message_content,
423                    });
424                }
425            }
426            Role::Assistant => {
427                for content in &message.content {
428                    match content {
429                        MessageContent::Text(text) | MessageContent::Thinking { text, .. } => {
430                            messages.push(mistral::RequestMessage::Assistant {
431                                content: Some(text.clone()),
432                                tool_calls: Vec::new(),
433                            });
434                        }
435                        MessageContent::RedactedThinking(_) => {}
436                        MessageContent::Image(_) => {}
437                        MessageContent::ToolUse(tool_use) => {
438                            let tool_call = mistral::ToolCall {
439                                id: tool_use.id.to_string(),
440                                content: mistral::ToolCallContent::Function {
441                                    function: mistral::FunctionContent {
442                                        name: tool_use.name.to_string(),
443                                        arguments: serde_json::to_string(&tool_use.input)
444                                            .unwrap_or_default(),
445                                    },
446                                },
447                            };
448
449                            if let Some(mistral::RequestMessage::Assistant { tool_calls, .. }) =
450                                messages.last_mut()
451                            {
452                                tool_calls.push(tool_call);
453                            } else {
454                                messages.push(mistral::RequestMessage::Assistant {
455                                    content: None,
456                                    tool_calls: vec![tool_call],
457                                });
458                            }
459                        }
460                        MessageContent::ToolResult(_) => {
461                            // Tool results are not supported in Assistant messages
462                        }
463                    }
464                }
465            }
466            Role::System => {
467                for content in &message.content {
468                    match content {
469                        MessageContent::Text(text) | MessageContent::Thinking { text, .. } => {
470                            messages.push(mistral::RequestMessage::System {
471                                content: text.clone(),
472                            });
473                        }
474                        MessageContent::RedactedThinking(_) => {}
475                        MessageContent::Image(_)
476                        | MessageContent::ToolUse(_)
477                        | MessageContent::ToolResult(_) => {
478                            // Images and tools are not supported in System messages
479                        }
480                    }
481                }
482            }
483        }
484    }
485
486    for message in &request.messages {
487        for content in &message.content {
488            if let MessageContent::ToolResult(tool_result) = content {
489                let content = match &tool_result.content {
490                    LanguageModelToolResultContent::Text(text) => text.to_string(),
491                    LanguageModelToolResultContent::Image(_) => {
492                        "[Tool responded with an image, but Zed doesn't support these in Mistral models yet]".to_string()
493                    }
494                };
495
496                messages.push(mistral::RequestMessage::Tool {
497                    content,
498                    tool_call_id: tool_result.tool_use_id.to_string(),
499                });
500            }
501        }
502    }
503
504    // The Mistral API requires that tool messages be followed by assistant messages,
505    // not user messages. When we have a tool->user sequence in the conversation,
506    // we need to insert a placeholder assistant message to maintain proper conversation
507    // flow and prevent API errors. This is a Mistral-specific requirement that differs
508    // from other language model APIs.
509    let messages = {
510        let mut fixed_messages = Vec::with_capacity(messages.len());
511        let mut messages_iter = messages.into_iter().peekable();
512
513        while let Some(message) = messages_iter.next() {
514            let is_tool_message = matches!(message, mistral::RequestMessage::Tool { .. });
515            fixed_messages.push(message);
516
517            // Insert assistant message between tool and user messages
518            if is_tool_message {
519                if let Some(next_msg) = messages_iter.peek() {
520                    if matches!(next_msg, mistral::RequestMessage::User { .. }) {
521                        fixed_messages.push(mistral::RequestMessage::Assistant {
522                            content: Some(" ".to_string()),
523                            tool_calls: Vec::new(),
524                        });
525                    }
526                }
527            }
528        }
529
530        fixed_messages
531    };
532
533    mistral::Request {
534        model,
535        messages,
536        stream,
537        max_tokens: max_output_tokens,
538        temperature: request.temperature,
539        response_format: None,
540        tool_choice: match request.tool_choice {
541            Some(LanguageModelToolChoice::Auto) if !request.tools.is_empty() => {
542                Some(mistral::ToolChoice::Auto)
543            }
544            Some(LanguageModelToolChoice::Any) if !request.tools.is_empty() => {
545                Some(mistral::ToolChoice::Any)
546            }
547            Some(LanguageModelToolChoice::None) => Some(mistral::ToolChoice::None),
548            _ if !request.tools.is_empty() => Some(mistral::ToolChoice::Auto),
549            _ => None,
550        },
551        parallel_tool_calls: if !request.tools.is_empty() {
552            Some(false)
553        } else {
554            None
555        },
556        tools: request
557            .tools
558            .into_iter()
559            .map(|tool| mistral::ToolDefinition::Function {
560                function: mistral::FunctionDefinition {
561                    name: tool.name,
562                    description: Some(tool.description),
563                    parameters: Some(tool.input_schema),
564                },
565            })
566            .collect(),
567    }
568}
569
570pub struct MistralEventMapper {
571    tool_calls_by_index: HashMap<usize, RawToolCall>,
572}
573
574impl MistralEventMapper {
575    pub fn new() -> Self {
576        Self {
577            tool_calls_by_index: HashMap::default(),
578        }
579    }
580
581    pub fn map_stream(
582        mut self,
583        events: Pin<Box<dyn Send + futures::Stream<Item = Result<mistral::StreamResponse>>>>,
584    ) -> impl futures::Stream<Item = Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>
585    {
586        events.flat_map(move |event| {
587            futures::stream::iter(match event {
588                Ok(event) => self.map_event(event),
589                Err(error) => vec![Err(LanguageModelCompletionError::Other(anyhow!(error)))],
590            })
591        })
592    }
593
594    pub fn map_event(
595        &mut self,
596        event: mistral::StreamResponse,
597    ) -> Vec<Result<LanguageModelCompletionEvent, LanguageModelCompletionError>> {
598        let Some(choice) = event.choices.first() else {
599            return vec![Err(LanguageModelCompletionError::Other(anyhow!(
600                "Response contained no choices"
601            )))];
602        };
603
604        let mut events = Vec::new();
605        if let Some(content) = choice.delta.content.clone() {
606            events.push(Ok(LanguageModelCompletionEvent::Text(content)));
607        }
608
609        if let Some(tool_calls) = choice.delta.tool_calls.as_ref() {
610            for tool_call in tool_calls {
611                let entry = self.tool_calls_by_index.entry(tool_call.index).or_default();
612
613                if let Some(tool_id) = tool_call.id.clone() {
614                    entry.id = tool_id;
615                }
616
617                if let Some(function) = tool_call.function.as_ref() {
618                    if let Some(name) = function.name.clone() {
619                        entry.name = name;
620                    }
621
622                    if let Some(arguments) = function.arguments.clone() {
623                        entry.arguments.push_str(&arguments);
624                    }
625                }
626            }
627        }
628
629        if let Some(usage) = event.usage {
630            events.push(Ok(LanguageModelCompletionEvent::UsageUpdate(TokenUsage {
631                input_tokens: usage.prompt_tokens,
632                output_tokens: usage.completion_tokens,
633                cache_creation_input_tokens: 0,
634                cache_read_input_tokens: 0,
635            })));
636        }
637
638        if let Some(finish_reason) = choice.finish_reason.as_deref() {
639            match finish_reason {
640                "stop" => {
641                    events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::EndTurn)));
642                }
643                "tool_calls" => {
644                    events.extend(self.process_tool_calls());
645                    events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::ToolUse)));
646                }
647                unexpected => {
648                    log::error!("Unexpected Mistral stop_reason: {unexpected:?}");
649                    events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::EndTurn)));
650                }
651            }
652        }
653
654        events
655    }
656
657    fn process_tool_calls(
658        &mut self,
659    ) -> Vec<Result<LanguageModelCompletionEvent, LanguageModelCompletionError>> {
660        let mut results = Vec::new();
661
662        for (_, tool_call) in self.tool_calls_by_index.drain() {
663            if tool_call.id.is_empty() || tool_call.name.is_empty() {
664                results.push(Err(LanguageModelCompletionError::Other(anyhow!(
665                    "Received incomplete tool call: missing id or name"
666                ))));
667                continue;
668            }
669
670            match serde_json::Value::from_str(&tool_call.arguments) {
671                Ok(input) => results.push(Ok(LanguageModelCompletionEvent::ToolUse(
672                    LanguageModelToolUse {
673                        id: tool_call.id.into(),
674                        name: tool_call.name.into(),
675                        is_input_complete: true,
676                        input,
677                        raw_input: tool_call.arguments,
678                    },
679                ))),
680                Err(error) => results.push(Err(LanguageModelCompletionError::BadInputJson {
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        results
690    }
691}
692
693#[derive(Default)]
694struct RawToolCall {
695    id: String,
696    name: String,
697    arguments: String,
698}
699
700struct ConfigurationView {
701    api_key_editor: Entity<Editor>,
702    state: gpui::Entity<State>,
703    load_credentials_task: Option<Task<()>>,
704}
705
706impl ConfigurationView {
707    fn new(state: gpui::Entity<State>, window: &mut Window, cx: &mut Context<Self>) -> Self {
708        let api_key_editor = cx.new(|cx| {
709            let mut editor = Editor::single_line(window, cx);
710            editor.set_placeholder_text("0aBCDEFGhIjKLmNOpqrSTUVwxyzabCDE1f2", cx);
711            editor
712        });
713
714        cx.observe(&state, |_, _, cx| {
715            cx.notify();
716        })
717        .detach();
718
719        let load_credentials_task = Some(cx.spawn_in(window, {
720            let state = state.clone();
721            async move |this, cx| {
722                if let Some(task) = state
723                    .update(cx, |state, cx| state.authenticate(cx))
724                    .log_err()
725                {
726                    // We don't log an error, because "not signed in" is also an error.
727                    let _ = task.await;
728                }
729
730                this.update(cx, |this, cx| {
731                    this.load_credentials_task = None;
732                    cx.notify();
733                })
734                .log_err();
735            }
736        }));
737
738        Self {
739            api_key_editor,
740            state,
741            load_credentials_task,
742        }
743    }
744
745    fn save_api_key(&mut self, _: &menu::Confirm, window: &mut Window, cx: &mut Context<Self>) {
746        let api_key = self.api_key_editor.read(cx).text(cx);
747        if api_key.is_empty() {
748            return;
749        }
750
751        let state = self.state.clone();
752        cx.spawn_in(window, async move |_, cx| {
753            state
754                .update(cx, |state, cx| state.set_api_key(api_key, cx))?
755                .await
756        })
757        .detach_and_log_err(cx);
758
759        cx.notify();
760    }
761
762    fn reset_api_key(&mut self, window: &mut Window, cx: &mut Context<Self>) {
763        self.api_key_editor
764            .update(cx, |editor, cx| editor.set_text("", window, cx));
765
766        let state = self.state.clone();
767        cx.spawn_in(window, async move |_, cx| {
768            state.update(cx, |state, cx| state.reset_api_key(cx))?.await
769        })
770        .detach_and_log_err(cx);
771
772        cx.notify();
773    }
774
775    fn render_api_key_editor(&self, cx: &mut Context<Self>) -> impl IntoElement {
776        let settings = ThemeSettings::get_global(cx);
777        let text_style = TextStyle {
778            color: cx.theme().colors().text,
779            font_family: settings.ui_font.family.clone(),
780            font_features: settings.ui_font.features.clone(),
781            font_fallbacks: settings.ui_font.fallbacks.clone(),
782            font_size: rems(0.875).into(),
783            font_weight: settings.ui_font.weight,
784            font_style: FontStyle::Normal,
785            line_height: relative(1.3),
786            white_space: WhiteSpace::Normal,
787            ..Default::default()
788        };
789        EditorElement::new(
790            &self.api_key_editor,
791            EditorStyle {
792                background: cx.theme().colors().editor_background,
793                local_player: cx.theme().players().local(),
794                text: text_style,
795                ..Default::default()
796            },
797        )
798    }
799
800    fn should_render_editor(&self, cx: &mut Context<Self>) -> bool {
801        !self.state.read(cx).is_authenticated()
802    }
803}
804
805impl Render for ConfigurationView {
806    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
807        let env_var_set = self.state.read(cx).api_key_from_env;
808
809        if self.load_credentials_task.is_some() {
810            div().child(Label::new("Loading credentials...")).into_any()
811        } else if self.should_render_editor(cx) {
812            v_flex()
813                .size_full()
814                .on_action(cx.listener(Self::save_api_key))
815                .child(Label::new("To use Zed's assistant with Mistral, you need to add an API key. Follow these steps:"))
816                .child(
817                    List::new()
818                        .child(InstructionListItem::new(
819                            "Create one by visiting",
820                            Some("Mistral's console"),
821                            Some("https://console.mistral.ai/api-keys"),
822                        ))
823                        .child(InstructionListItem::text_only(
824                            "Ensure your Mistral account has credits",
825                        ))
826                        .child(InstructionListItem::text_only(
827                            "Paste your API key below and hit enter to start using the assistant",
828                        )),
829                )
830                .child(
831                    h_flex()
832                        .w_full()
833                        .my_2()
834                        .px_2()
835                        .py_1()
836                        .bg(cx.theme().colors().editor_background)
837                        .border_1()
838                        .border_color(cx.theme().colors().border)
839                        .rounded_sm()
840                        .child(self.render_api_key_editor(cx)),
841                )
842                .child(
843                    Label::new(
844                        format!("You can also assign the {MISTRAL_API_KEY_VAR} environment variable and restart Zed."),
845                    )
846                    .size(LabelSize::Small).color(Color::Muted),
847                )
848                .into_any()
849        } else {
850            h_flex()
851                .mt_1()
852                .p_1()
853                .justify_between()
854                .rounded_md()
855                .border_1()
856                .border_color(cx.theme().colors().border)
857                .bg(cx.theme().colors().background)
858                .child(
859                    h_flex()
860                        .gap_1()
861                        .child(Icon::new(IconName::Check).color(Color::Success))
862                        .child(Label::new(if env_var_set {
863                            format!("API key set in {MISTRAL_API_KEY_VAR} environment variable.")
864                        } else {
865                            "API key configured.".to_string()
866                        })),
867                )
868                .child(
869                    Button::new("reset-key", "Reset Key")
870                        .label_size(LabelSize::Small)
871                        .icon(Some(IconName::Trash))
872                        .icon_size(IconSize::Small)
873                        .icon_position(IconPosition::Start)
874                        .disabled(env_var_set)
875                        .when(env_var_set, |this| {
876                            this.tooltip(Tooltip::text(format!("To reset your API key, unset the {MISTRAL_API_KEY_VAR} environment variable.")))
877                        })
878                        .on_click(cx.listener(|this, _, window, cx| this.reset_api_key(window, cx))),
879                )
880                .into_any()
881        }
882    }
883}
884
885#[cfg(test)]
886mod tests {
887    use super::*;
888    use language_model::{LanguageModelImage, LanguageModelRequestMessage, MessageContent};
889
890    #[test]
891    fn test_into_mistral_basic_conversion() {
892        let request = LanguageModelRequest {
893            messages: vec![
894                LanguageModelRequestMessage {
895                    role: Role::System,
896                    content: vec![MessageContent::Text("System prompt".into())],
897                    cache: false,
898                },
899                LanguageModelRequestMessage {
900                    role: Role::User,
901                    content: vec![MessageContent::Text("Hello".into())],
902                    cache: false,
903                },
904            ],
905            temperature: Some(0.5),
906            tools: vec![],
907            tool_choice: None,
908            thread_id: None,
909            prompt_id: None,
910            intent: None,
911            mode: None,
912            stop: vec![],
913        };
914
915        let mistral_request = into_mistral(request, "mistral-small-latest".into(), None);
916
917        assert_eq!(mistral_request.model, "mistral-small-latest");
918        assert_eq!(mistral_request.temperature, Some(0.5));
919        assert_eq!(mistral_request.messages.len(), 2);
920        assert!(mistral_request.stream);
921    }
922
923    #[test]
924    fn test_into_mistral_with_image() {
925        let request = LanguageModelRequest {
926            messages: vec![LanguageModelRequestMessage {
927                role: Role::User,
928                content: vec![
929                    MessageContent::Text("What's in this image?".into()),
930                    MessageContent::Image(LanguageModelImage {
931                        source: "base64data".into(),
932                        size: Default::default(),
933                    }),
934                ],
935                cache: false,
936            }],
937            tools: vec![],
938            tool_choice: None,
939            temperature: None,
940            thread_id: None,
941            prompt_id: None,
942            intent: None,
943            mode: None,
944            stop: vec![],
945        };
946
947        let mistral_request = into_mistral(request, "pixtral-12b-latest".into(), None);
948
949        assert_eq!(mistral_request.messages.len(), 1);
950        assert!(matches!(
951            &mistral_request.messages[0],
952            mistral::RequestMessage::User {
953                content: mistral::MessageContent::Multipart { .. }
954            }
955        ));
956
957        if let mistral::RequestMessage::User {
958            content: mistral::MessageContent::Multipart { content },
959        } = &mistral_request.messages[0]
960        {
961            assert_eq!(content.len(), 2);
962            assert!(matches!(
963                &content[0],
964                mistral::MessagePart::Text { text } if text == "What's in this image?"
965            ));
966            assert!(matches!(
967                &content[1],
968                mistral::MessagePart::ImageUrl { image_url } if image_url.starts_with("data:image/png;base64,")
969            ));
970        }
971    }
972}