1use crate::{
2 LanguageModel, LanguageModelId, LanguageModelProvider, LanguageModelProviderId,
3 LanguageModelProviderState,
4};
5use collections::BTreeMap;
6use gpui::{App, Context, Entity, EventEmitter, Global, prelude::*};
7use std::{str::FromStr, sync::Arc};
8use thiserror::Error;
9use util::maybe;
10
11pub fn init(cx: &mut App) {
12 let registry = cx.new(|_cx| LanguageModelRegistry::default());
13 cx.set_global(GlobalLanguageModelRegistry(registry));
14}
15
16struct GlobalLanguageModelRegistry(Entity<LanguageModelRegistry>);
17
18impl Global for GlobalLanguageModelRegistry {}
19
20#[derive(Error)]
21pub enum ConfigurationError {
22 #[error("Configure at least one LLM provider to start using the panel.")]
23 NoProvider,
24 #[error("LLM provider is not configured or does not support the configured model.")]
25 ModelNotFound,
26 #[error("{} LLM provider is not configured.", .0.name().0)]
27 ProviderNotAuthenticated(Arc<dyn LanguageModelProvider>),
28}
29
30impl std::fmt::Debug for ConfigurationError {
31 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
32 match self {
33 Self::NoProvider => write!(f, "NoProvider"),
34 Self::ModelNotFound => write!(f, "ModelNotFound"),
35 Self::ProviderNotAuthenticated(provider) => {
36 write!(f, "ProviderNotAuthenticated({})", provider.id())
37 }
38 }
39 }
40}
41
42#[derive(Default)]
43pub struct LanguageModelRegistry {
44 default_model: Option<ConfiguredModel>,
45 default_fast_model: Option<ConfiguredModel>,
46 inline_assistant_model: Option<ConfiguredModel>,
47 commit_message_model: Option<ConfiguredModel>,
48 thread_summary_model: Option<ConfiguredModel>,
49 providers: BTreeMap<LanguageModelProviderId, Arc<dyn LanguageModelProvider>>,
50 inline_alternatives: Vec<Arc<dyn LanguageModel>>,
51}
52
53#[derive(Debug)]
54pub struct SelectedModel {
55 pub provider: LanguageModelProviderId,
56 pub model: LanguageModelId,
57}
58
59impl FromStr for SelectedModel {
60 type Err = String;
61
62 /// Parse string identifiers like `provider_id/model_id` into a `SelectedModel`
63 fn from_str(id: &str) -> Result<SelectedModel, Self::Err> {
64 let parts: Vec<&str> = id.split('/').collect();
65 let [provider_id, model_id] = parts.as_slice() else {
66 return Err(format!(
67 "Invalid model identifier format: `{}`. Expected `provider_id/model_id`",
68 id
69 ));
70 };
71
72 if provider_id.is_empty() || model_id.is_empty() {
73 return Err(format!("Provider and model ids can't be empty: `{}`", id));
74 }
75
76 Ok(SelectedModel {
77 provider: LanguageModelProviderId(provider_id.to_string().into()),
78 model: LanguageModelId(model_id.to_string().into()),
79 })
80 }
81}
82
83#[derive(Clone)]
84pub struct ConfiguredModel {
85 pub provider: Arc<dyn LanguageModelProvider>,
86 pub model: Arc<dyn LanguageModel>,
87}
88
89impl ConfiguredModel {
90 pub fn is_same_as(&self, other: &ConfiguredModel) -> bool {
91 self.model.id() == other.model.id() && self.provider.id() == other.provider.id()
92 }
93
94 pub fn is_provided_by_zed(&self) -> bool {
95 self.provider.id() == crate::ZED_CLOUD_PROVIDER_ID
96 }
97}
98
99pub enum Event {
100 DefaultModelChanged,
101 InlineAssistantModelChanged,
102 CommitMessageModelChanged,
103 ThreadSummaryModelChanged,
104 ProviderStateChanged(LanguageModelProviderId),
105 AddedProvider(LanguageModelProviderId),
106 RemovedProvider(LanguageModelProviderId),
107}
108
109impl EventEmitter<Event> for LanguageModelRegistry {}
110
111impl LanguageModelRegistry {
112 pub fn global(cx: &App) -> Entity<Self> {
113 cx.global::<GlobalLanguageModelRegistry>().0.clone()
114 }
115
116 pub fn read_global(cx: &App) -> &Self {
117 cx.global::<GlobalLanguageModelRegistry>().0.read(cx)
118 }
119
120 #[cfg(any(test, feature = "test-support"))]
121 pub fn test(cx: &mut App) -> Arc<crate::fake_provider::FakeLanguageModelProvider> {
122 let fake_provider = Arc::new(crate::fake_provider::FakeLanguageModelProvider::default());
123 let registry = cx.new(|cx| {
124 let mut registry = Self::default();
125 registry.register_provider(fake_provider.clone(), cx);
126 let model = fake_provider.provided_models(cx)[0].clone();
127 let configured_model = ConfiguredModel {
128 provider: fake_provider.clone(),
129 model,
130 };
131 registry.set_default_model(Some(configured_model), cx);
132 registry
133 });
134 cx.set_global(GlobalLanguageModelRegistry(registry));
135 fake_provider
136 }
137
138 pub fn register_provider<T: LanguageModelProvider + LanguageModelProviderState>(
139 &mut self,
140 provider: Arc<T>,
141 cx: &mut Context<Self>,
142 ) {
143 let id = provider.id();
144
145 let subscription = provider.subscribe(cx, {
146 let id = id.clone();
147 move |_, cx| {
148 cx.emit(Event::ProviderStateChanged(id.clone()));
149 }
150 });
151 if let Some(subscription) = subscription {
152 subscription.detach();
153 }
154
155 self.providers.insert(id.clone(), provider);
156 let now = std::time::SystemTime::now()
157 .duration_since(std::time::UNIX_EPOCH)
158 .unwrap_or_default()
159 .as_millis();
160 eprintln!(
161 "[{}ms] LanguageModelRegistry: About to emit AddedProvider event for {:?}",
162 now, id
163 );
164 cx.emit(Event::AddedProvider(id.clone()));
165 eprintln!(
166 "[{}ms] LanguageModelRegistry: Emitted AddedProvider event for {:?}",
167 now, id
168 );
169 }
170
171 pub fn unregister_provider(&mut self, id: LanguageModelProviderId, cx: &mut Context<Self>) {
172 if self.providers.remove(&id).is_some() {
173 cx.emit(Event::RemovedProvider(id));
174 }
175 }
176
177 pub fn providers(&self) -> Vec<Arc<dyn LanguageModelProvider>> {
178 let now = std::time::SystemTime::now()
179 .duration_since(std::time::UNIX_EPOCH)
180 .unwrap_or_default()
181 .as_millis();
182 eprintln!(
183 "[{}ms] LanguageModelRegistry::providers() called, {} providers in registry",
184 now,
185 self.providers.len()
186 );
187 for (id, _) in &self.providers {
188 eprintln!(" - provider: {:?}", id);
189 }
190 let zed_provider_id = LanguageModelProviderId("zed.dev".into());
191 let mut providers = Vec::with_capacity(self.providers.len());
192 if let Some(provider) = self.providers.get(&zed_provider_id) {
193 providers.push(provider.clone());
194 }
195 providers.extend(self.providers.values().filter_map(|p| {
196 if p.id() != zed_provider_id {
197 Some(p.clone())
198 } else {
199 None
200 }
201 }));
202 eprintln!(
203 "[{}ms] LanguageModelRegistry::providers() returning {} providers",
204 now,
205 providers.len()
206 );
207 providers
208 }
209
210 pub fn configuration_error(
211 &self,
212 model: Option<ConfiguredModel>,
213 cx: &App,
214 ) -> Option<ConfigurationError> {
215 let Some(model) = model else {
216 if !self.has_authenticated_provider(cx) {
217 return Some(ConfigurationError::NoProvider);
218 }
219 return Some(ConfigurationError::ModelNotFound);
220 };
221
222 if !model.provider.is_authenticated(cx) {
223 return Some(ConfigurationError::ProviderNotAuthenticated(model.provider));
224 }
225
226 None
227 }
228
229 /// Returns `true` if at least one provider that is authenticated.
230 pub fn has_authenticated_provider(&self, cx: &App) -> bool {
231 self.providers.values().any(|p| p.is_authenticated(cx))
232 }
233
234 pub fn available_models<'a>(
235 &'a self,
236 cx: &'a App,
237 ) -> impl Iterator<Item = Arc<dyn LanguageModel>> + 'a {
238 self.providers
239 .values()
240 .filter(|provider| provider.is_authenticated(cx))
241 .flat_map(|provider| provider.provided_models(cx))
242 }
243
244 pub fn provider(&self, id: &LanguageModelProviderId) -> Option<Arc<dyn LanguageModelProvider>> {
245 self.providers.get(id).cloned()
246 }
247
248 pub fn select_default_model(&mut self, model: Option<&SelectedModel>, cx: &mut Context<Self>) {
249 let configured_model = model.and_then(|model| self.select_model(model, cx));
250 self.set_default_model(configured_model, cx);
251 }
252
253 pub fn select_inline_assistant_model(
254 &mut self,
255 model: Option<&SelectedModel>,
256 cx: &mut Context<Self>,
257 ) {
258 let configured_model = model.and_then(|model| self.select_model(model, cx));
259 self.set_inline_assistant_model(configured_model, cx);
260 }
261
262 pub fn select_commit_message_model(
263 &mut self,
264 model: Option<&SelectedModel>,
265 cx: &mut Context<Self>,
266 ) {
267 let configured_model = model.and_then(|model| self.select_model(model, cx));
268 self.set_commit_message_model(configured_model, cx);
269 }
270
271 pub fn select_thread_summary_model(
272 &mut self,
273 model: Option<&SelectedModel>,
274 cx: &mut Context<Self>,
275 ) {
276 let configured_model = model.and_then(|model| self.select_model(model, cx));
277 self.set_thread_summary_model(configured_model, cx);
278 }
279
280 /// Selects and sets the inline alternatives for language models based on
281 /// provider name and id.
282 pub fn select_inline_alternative_models(
283 &mut self,
284 alternatives: impl IntoIterator<Item = SelectedModel>,
285 cx: &mut Context<Self>,
286 ) {
287 self.inline_alternatives = alternatives
288 .into_iter()
289 .flat_map(|alternative| {
290 self.select_model(&alternative, cx)
291 .map(|configured_model| configured_model.model)
292 })
293 .collect::<Vec<_>>();
294 }
295
296 pub fn select_model(
297 &mut self,
298 selected_model: &SelectedModel,
299 cx: &mut Context<Self>,
300 ) -> Option<ConfiguredModel> {
301 let provider = self.provider(&selected_model.provider)?;
302 let model = provider
303 .provided_models(cx)
304 .iter()
305 .find(|model| model.id() == selected_model.model)?
306 .clone();
307 Some(ConfiguredModel { provider, model })
308 }
309
310 pub fn set_default_model(&mut self, model: Option<ConfiguredModel>, cx: &mut Context<Self>) {
311 match (self.default_model.as_ref(), model.as_ref()) {
312 (Some(old), Some(new)) if old.is_same_as(new) => {}
313 (None, None) => {}
314 _ => cx.emit(Event::DefaultModelChanged),
315 }
316 self.default_fast_model = maybe!({
317 let provider = &model.as_ref()?.provider;
318 let fast_model = provider.default_fast_model(cx)?;
319 Some(ConfiguredModel {
320 provider: provider.clone(),
321 model: fast_model,
322 })
323 });
324 self.default_model = model;
325 }
326
327 pub fn set_inline_assistant_model(
328 &mut self,
329 model: Option<ConfiguredModel>,
330 cx: &mut Context<Self>,
331 ) {
332 match (self.inline_assistant_model.as_ref(), model.as_ref()) {
333 (Some(old), Some(new)) if old.is_same_as(new) => {}
334 (None, None) => {}
335 _ => cx.emit(Event::InlineAssistantModelChanged),
336 }
337 self.inline_assistant_model = model;
338 }
339
340 pub fn set_commit_message_model(
341 &mut self,
342 model: Option<ConfiguredModel>,
343 cx: &mut Context<Self>,
344 ) {
345 match (self.commit_message_model.as_ref(), model.as_ref()) {
346 (Some(old), Some(new)) if old.is_same_as(new) => {}
347 (None, None) => {}
348 _ => cx.emit(Event::CommitMessageModelChanged),
349 }
350 self.commit_message_model = model;
351 }
352
353 pub fn set_thread_summary_model(
354 &mut self,
355 model: Option<ConfiguredModel>,
356 cx: &mut Context<Self>,
357 ) {
358 match (self.thread_summary_model.as_ref(), model.as_ref()) {
359 (Some(old), Some(new)) if old.is_same_as(new) => {}
360 (None, None) => {}
361 _ => cx.emit(Event::ThreadSummaryModelChanged),
362 }
363 self.thread_summary_model = model;
364 }
365
366 pub fn default_model(&self) -> Option<ConfiguredModel> {
367 #[cfg(debug_assertions)]
368 if std::env::var("ZED_SIMULATE_NO_LLM_PROVIDER").is_ok() {
369 return None;
370 }
371
372 self.default_model.clone()
373 }
374
375 pub fn inline_assistant_model(&self) -> Option<ConfiguredModel> {
376 #[cfg(debug_assertions)]
377 if std::env::var("ZED_SIMULATE_NO_LLM_PROVIDER").is_ok() {
378 return None;
379 }
380
381 self.inline_assistant_model
382 .clone()
383 .or_else(|| self.default_model.clone())
384 }
385
386 pub fn commit_message_model(&self) -> Option<ConfiguredModel> {
387 #[cfg(debug_assertions)]
388 if std::env::var("ZED_SIMULATE_NO_LLM_PROVIDER").is_ok() {
389 return None;
390 }
391
392 self.commit_message_model
393 .clone()
394 .or_else(|| self.default_fast_model.clone())
395 .or_else(|| self.default_model.clone())
396 }
397
398 pub fn thread_summary_model(&self) -> Option<ConfiguredModel> {
399 #[cfg(debug_assertions)]
400 if std::env::var("ZED_SIMULATE_NO_LLM_PROVIDER").is_ok() {
401 return None;
402 }
403
404 self.thread_summary_model
405 .clone()
406 .or_else(|| self.default_fast_model.clone())
407 .or_else(|| self.default_model.clone())
408 }
409
410 /// The models to use for inline assists. Returns the union of the active
411 /// model and all inline alternatives. When there are multiple models, the
412 /// user will be able to cycle through results.
413 pub fn inline_alternative_models(&self) -> &[Arc<dyn LanguageModel>] {
414 &self.inline_alternatives
415 }
416}
417
418#[cfg(test)]
419mod tests {
420 use super::*;
421 use crate::fake_provider::FakeLanguageModelProvider;
422
423 #[gpui::test]
424 fn test_register_providers(cx: &mut App) {
425 let registry = cx.new(|_| LanguageModelRegistry::default());
426
427 let provider = Arc::new(FakeLanguageModelProvider::default());
428 registry.update(cx, |registry, cx| {
429 registry.register_provider(provider.clone(), cx);
430 });
431
432 let providers = registry.read(cx).providers();
433 assert_eq!(providers.len(), 1);
434 assert_eq!(providers[0].id(), provider.id());
435
436 registry.update(cx, |registry, cx| {
437 registry.unregister_provider(provider.id(), cx);
438 });
439
440 let providers = registry.read(cx).providers();
441 assert!(providers.is_empty());
442 }
443}