1use std::{
2 sync::{Arc, Mutex},
3 time::Duration,
4};
5
6use anyhow::{Context as _, Result};
7use context_server::{ContextServerCommand, ContextServerId};
8use editor::{Editor, EditorElement, EditorStyle};
9use gpui::{
10 Animation, AnimationExt as _, AsyncWindowContext, DismissEvent, Entity, EventEmitter,
11 FocusHandle, Focusable, Task, TextStyle, TextStyleRefinement, Transformation, UnderlineStyle,
12 WeakEntity, percentage, prelude::*,
13};
14use language::{Language, LanguageRegistry};
15use markdown::{Markdown, MarkdownElement, MarkdownStyle};
16use notifications::status_toast::{StatusToast, ToastIcon};
17use project::{
18 context_server_store::{
19 ContextServerStatus, ContextServerStore, registry::ContextServerDescriptorRegistry,
20 },
21 project_settings::{ContextServerSettings, ProjectSettings},
22 worktree_store::WorktreeStore,
23};
24use settings::{Settings as _, update_settings_file};
25use theme::ThemeSettings;
26use ui::{KeyBinding, Modal, ModalFooter, ModalHeader, Section, Tooltip, prelude::*};
27use util::ResultExt as _;
28use workspace::{ModalView, Workspace};
29
30use crate::AddContextServer;
31
32enum ConfigurationTarget {
33 New,
34 Existing {
35 id: ContextServerId,
36 command: ContextServerCommand,
37 },
38 Extension {
39 id: ContextServerId,
40 repository_url: Option<SharedString>,
41 installation: Option<extension::ContextServerConfiguration>,
42 },
43}
44
45enum ConfigurationSource {
46 New {
47 editor: Entity<Editor>,
48 },
49 Existing {
50 editor: Entity<Editor>,
51 },
52 Extension {
53 id: ContextServerId,
54 editor: Option<Entity<Editor>>,
55 repository_url: Option<SharedString>,
56 installation_instructions: Option<Entity<markdown::Markdown>>,
57 settings_validator: Option<jsonschema::Validator>,
58 },
59}
60
61impl ConfigurationSource {
62 fn has_configuration_options(&self) -> bool {
63 !matches!(self, ConfigurationSource::Extension { editor: None, .. })
64 }
65
66 fn is_new(&self) -> bool {
67 matches!(self, ConfigurationSource::New { .. })
68 }
69
70 fn from_target(
71 target: ConfigurationTarget,
72 language_registry: Arc<LanguageRegistry>,
73 jsonc_language: Option<Arc<Language>>,
74 window: &mut Window,
75 cx: &mut App,
76 ) -> Self {
77 fn create_editor(
78 json: String,
79 jsonc_language: Option<Arc<Language>>,
80 window: &mut Window,
81 cx: &mut App,
82 ) -> Entity<Editor> {
83 cx.new(|cx| {
84 let mut editor = Editor::auto_height(4, 16, window, cx);
85 editor.set_text(json, window, cx);
86 editor.set_show_gutter(false, cx);
87 editor.set_soft_wrap_mode(language::language_settings::SoftWrap::None, cx);
88 if let Some(buffer) = editor.buffer().read(cx).as_singleton() {
89 buffer.update(cx, |buffer, cx| buffer.set_language(jsonc_language, cx))
90 }
91 editor
92 })
93 }
94
95 match target {
96 ConfigurationTarget::New => ConfigurationSource::New {
97 editor: create_editor(context_server_input(None), jsonc_language, window, cx),
98 },
99 ConfigurationTarget::Existing { id, command } => ConfigurationSource::Existing {
100 editor: create_editor(
101 context_server_input(Some((id, command))),
102 jsonc_language,
103 window,
104 cx,
105 ),
106 },
107 ConfigurationTarget::Extension {
108 id,
109 repository_url,
110 installation,
111 } => {
112 let settings_validator = installation.as_ref().and_then(|installation| {
113 jsonschema::validator_for(&installation.settings_schema)
114 .context("Failed to load JSON schema for context server settings")
115 .log_err()
116 });
117 let installation_instructions = installation.as_ref().map(|installation| {
118 cx.new(|cx| {
119 Markdown::new(
120 installation.installation_instructions.clone().into(),
121 Some(language_registry.clone()),
122 None,
123 cx,
124 )
125 })
126 });
127 ConfigurationSource::Extension {
128 id,
129 repository_url,
130 installation_instructions,
131 settings_validator,
132 editor: installation.map(|installation| {
133 create_editor(installation.default_settings, jsonc_language, window, cx)
134 }),
135 }
136 }
137 }
138 }
139
140 fn output(&self, cx: &mut App) -> Result<(ContextServerId, ContextServerSettings)> {
141 match self {
142 ConfigurationSource::New { editor } | ConfigurationSource::Existing { editor } => {
143 parse_input(&editor.read(cx).text(cx)).map(|(id, command)| {
144 (
145 id,
146 ContextServerSettings::Custom {
147 enabled: true,
148 command,
149 },
150 )
151 })
152 }
153 ConfigurationSource::Extension {
154 id,
155 editor,
156 settings_validator,
157 ..
158 } => {
159 let text = editor
160 .as_ref()
161 .context("No output available")?
162 .read(cx)
163 .text(cx);
164 let settings = serde_json_lenient::from_str::<serde_json::Value>(&text)?;
165 if let Some(settings_validator) = settings_validator {
166 if let Err(error) = settings_validator.validate(&settings) {
167 return Err(anyhow::anyhow!(error.to_string()));
168 }
169 }
170 Ok((
171 id.clone(),
172 ContextServerSettings::Extension {
173 enabled: true,
174 settings,
175 },
176 ))
177 }
178 }
179 }
180}
181
182fn context_server_input(existing: Option<(ContextServerId, ContextServerCommand)>) -> String {
183 let (name, path, args, env) = match existing {
184 Some((id, cmd)) => {
185 let args = serde_json::to_string(&cmd.args).unwrap();
186 let env = serde_json::to_string(&cmd.env.unwrap_or_default()).unwrap();
187 (id.0.to_string(), cmd.path, args, env)
188 }
189 None => (
190 "some-mcp-server".to_string(),
191 "".to_string(),
192 "[]".to_string(),
193 "{}".to_string(),
194 ),
195 };
196
197 format!(
198 r#"{{
199 /// The name of your MCP server
200 "{name}": {{
201 "command": {{
202 /// The path to the executable
203 "path": "{path}",
204 /// The arguments to pass to the executable
205 "args": {args},
206 /// The environment variables to set for the executable
207 "env": {env}
208 }}
209 }}
210}}"#
211 )
212}
213
214fn resolve_context_server_extension(
215 id: ContextServerId,
216 worktree_store: Entity<WorktreeStore>,
217 cx: &mut App,
218) -> Task<Option<ConfigurationTarget>> {
219 let registry = ContextServerDescriptorRegistry::default_global(cx).read(cx);
220
221 let Some(descriptor) = registry.context_server_descriptor(&id.0) else {
222 return Task::ready(None);
223 };
224
225 let extension = crate::agent_configuration::resolve_extension_for_context_server(&id, cx);
226 cx.spawn(async move |cx| {
227 let installation = descriptor
228 .configuration(worktree_store, cx)
229 .await
230 .context("Failed to resolve context server configuration")
231 .log_err()
232 .flatten();
233
234 Some(ConfigurationTarget::Extension {
235 id,
236 repository_url: extension
237 .and_then(|(_, manifest)| manifest.repository.clone().map(SharedString::from)),
238 installation,
239 })
240 })
241}
242
243enum State {
244 Idle,
245 Waiting,
246 Error(SharedString),
247}
248
249pub struct ConfigureContextServerModal {
250 context_server_store: Entity<ContextServerStore>,
251 workspace: WeakEntity<Workspace>,
252 source: ConfigurationSource,
253 state: State,
254}
255
256impl ConfigureContextServerModal {
257 pub fn register(
258 workspace: &mut Workspace,
259 language_registry: Arc<LanguageRegistry>,
260 _window: Option<&mut Window>,
261 _cx: &mut Context<Workspace>,
262 ) {
263 workspace.register_action({
264 let language_registry = language_registry.clone();
265 move |_workspace, _: &AddContextServer, window, cx| {
266 let workspace_handle = cx.weak_entity();
267 let language_registry = language_registry.clone();
268 window
269 .spawn(cx, async move |cx| {
270 Self::show_modal(
271 ConfigurationTarget::New,
272 language_registry,
273 workspace_handle,
274 cx,
275 )
276 .await
277 })
278 .detach_and_log_err(cx);
279 }
280 });
281 }
282
283 pub fn show_modal_for_existing_server(
284 server_id: ContextServerId,
285 language_registry: Arc<LanguageRegistry>,
286 workspace: WeakEntity<Workspace>,
287 window: &mut Window,
288 cx: &mut App,
289 ) -> Task<Result<()>> {
290 let Some(settings) = ProjectSettings::get_global(cx)
291 .context_servers
292 .get(&server_id.0)
293 .cloned()
294 .or_else(|| {
295 ContextServerDescriptorRegistry::default_global(cx)
296 .read(cx)
297 .context_server_descriptor(&server_id.0)
298 .map(|_| ContextServerSettings::default_extension())
299 })
300 else {
301 return Task::ready(Err(anyhow::anyhow!("Context server not found")));
302 };
303
304 window.spawn(cx, async move |cx| {
305 let target = match settings {
306 ContextServerSettings::Custom {
307 enabled: _,
308 command,
309 } => Some(ConfigurationTarget::Existing {
310 id: server_id,
311 command,
312 }),
313 ContextServerSettings::Extension { .. } => {
314 match workspace
315 .update(cx, |workspace, cx| {
316 resolve_context_server_extension(
317 server_id,
318 workspace.project().read(cx).worktree_store(),
319 cx,
320 )
321 })
322 .ok()
323 {
324 Some(task) => task.await,
325 None => None,
326 }
327 }
328 };
329
330 match target {
331 Some(target) => Self::show_modal(target, language_registry, workspace, cx).await,
332 None => Err(anyhow::anyhow!("Failed to resolve context server")),
333 }
334 })
335 }
336
337 fn show_modal(
338 target: ConfigurationTarget,
339 language_registry: Arc<LanguageRegistry>,
340 workspace: WeakEntity<Workspace>,
341 cx: &mut AsyncWindowContext,
342 ) -> Task<Result<()>> {
343 cx.spawn(async move |cx| {
344 let jsonc_language = language_registry.language_for_name("jsonc").await.ok();
345 workspace.update_in(cx, |workspace, window, cx| {
346 let workspace_handle = cx.weak_entity();
347 let context_server_store = workspace.project().read(cx).context_server_store();
348 workspace.toggle_modal(window, cx, |window, cx| Self {
349 context_server_store,
350 workspace: workspace_handle,
351 state: State::Idle,
352 source: ConfigurationSource::from_target(
353 target,
354 language_registry,
355 jsonc_language,
356 window,
357 cx,
358 ),
359 })
360 })
361 })
362 }
363
364 fn set_error(&mut self, err: impl Into<SharedString>, cx: &mut Context<Self>) {
365 self.state = State::Error(err.into());
366 cx.notify();
367 }
368
369 fn confirm(&mut self, _: &menu::Confirm, cx: &mut Context<Self>) {
370 self.state = State::Idle;
371 let Some(workspace) = self.workspace.upgrade() else {
372 return;
373 };
374
375 let (id, settings) = match self.source.output(cx) {
376 Ok(val) => val,
377 Err(error) => {
378 self.set_error(error.to_string(), cx);
379 return;
380 }
381 };
382
383 self.state = State::Waiting;
384 let wait_for_context_server_task =
385 wait_for_context_server(&self.context_server_store, id.clone(), cx);
386 cx.spawn({
387 let id = id.clone();
388 async move |this, cx| {
389 let result = wait_for_context_server_task.await;
390 this.update(cx, |this, cx| match result {
391 Ok(_) => {
392 this.state = State::Idle;
393 this.show_configured_context_server_toast(id, cx);
394 cx.emit(DismissEvent);
395 }
396 Err(err) => {
397 this.set_error(err, cx);
398 }
399 })
400 }
401 })
402 .detach();
403
404 // When we write the settings to the file, the context server will be restarted.
405 workspace.update(cx, |workspace, cx| {
406 let fs = workspace.app_state().fs.clone();
407 update_settings_file::<ProjectSettings>(fs.clone(), cx, |project_settings, _| {
408 project_settings.context_servers.insert(id.0, settings);
409 });
410 });
411 }
412
413 fn cancel(&mut self, _: &menu::Cancel, cx: &mut Context<Self>) {
414 cx.emit(DismissEvent);
415 }
416
417 fn show_configured_context_server_toast(&self, id: ContextServerId, cx: &mut App) {
418 self.workspace
419 .update(cx, {
420 |workspace, cx| {
421 let status_toast = StatusToast::new(
422 format!("{} configured successfully.", id.0),
423 cx,
424 |this, _cx| {
425 this.icon(ToastIcon::new(IconName::Hammer).color(Color::Muted))
426 .action("Dismiss", |_, _| {})
427 },
428 );
429
430 workspace.toggle_status_toast(status_toast, cx);
431 }
432 })
433 .log_err();
434 }
435}
436
437fn parse_input(text: &str) -> Result<(ContextServerId, ContextServerCommand)> {
438 let value: serde_json::Value = serde_json_lenient::from_str(text)?;
439 let object = value.as_object().context("Expected object")?;
440 anyhow::ensure!(object.len() == 1, "Expected exactly one key-value pair");
441 let (context_server_name, value) = object.into_iter().next().unwrap();
442 let command = value.get("command").context("Expected command")?;
443 let command: ContextServerCommand = serde_json::from_value(command.clone())?;
444 Ok((ContextServerId(context_server_name.clone().into()), command))
445}
446
447impl ModalView for ConfigureContextServerModal {}
448
449impl Focusable for ConfigureContextServerModal {
450 fn focus_handle(&self, cx: &App) -> FocusHandle {
451 match &self.source {
452 ConfigurationSource::New { editor } => editor.focus_handle(cx),
453 ConfigurationSource::Existing { editor, .. } => editor.focus_handle(cx),
454 ConfigurationSource::Extension { editor, .. } => editor
455 .as_ref()
456 .map(|editor| editor.focus_handle(cx))
457 .unwrap_or_else(|| cx.focus_handle()),
458 }
459 }
460}
461
462impl EventEmitter<DismissEvent> for ConfigureContextServerModal {}
463
464impl ConfigureContextServerModal {
465 fn render_modal_header(&self) -> ModalHeader {
466 let text: SharedString = match &self.source {
467 ConfigurationSource::New { .. } => "Add MCP Server".into(),
468 ConfigurationSource::Existing { .. } => "Configure MCP Server".into(),
469 ConfigurationSource::Extension { id, .. } => format!("Configure {}", id.0).into(),
470 };
471 ModalHeader::new().headline(text)
472 }
473
474 fn render_modal_description(&self, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
475 const MODAL_DESCRIPTION: &'static str = "Visit the MCP server configuration docs to find all necessary arguments and environment variables.";
476
477 if let ConfigurationSource::Extension {
478 installation_instructions: Some(installation_instructions),
479 ..
480 } = &self.source
481 {
482 div()
483 .pb_2()
484 .text_sm()
485 .child(MarkdownElement::new(
486 installation_instructions.clone(),
487 default_markdown_style(window, cx),
488 ))
489 .into_any_element()
490 } else {
491 Label::new(MODAL_DESCRIPTION)
492 .color(Color::Muted)
493 .into_any_element()
494 }
495 }
496
497 fn render_modal_content(&self, cx: &App) -> AnyElement {
498 let editor = match &self.source {
499 ConfigurationSource::New { editor } => editor,
500 ConfigurationSource::Existing { editor } => editor,
501 ConfigurationSource::Extension { editor, .. } => {
502 let Some(editor) = editor else {
503 return div().into_any_element();
504 };
505 editor
506 }
507 };
508
509 div()
510 .p_2()
511 .rounded_md()
512 .border_1()
513 .border_color(cx.theme().colors().border_variant)
514 .bg(cx.theme().colors().editor_background)
515 .child({
516 let settings = ThemeSettings::get_global(cx);
517 let text_style = TextStyle {
518 color: cx.theme().colors().text,
519 font_family: settings.buffer_font.family.clone(),
520 font_fallbacks: settings.buffer_font.fallbacks.clone(),
521 font_size: settings.buffer_font_size(cx).into(),
522 font_weight: settings.buffer_font.weight,
523 line_height: relative(settings.buffer_line_height.value()),
524 ..Default::default()
525 };
526 EditorElement::new(
527 editor,
528 EditorStyle {
529 background: cx.theme().colors().editor_background,
530 local_player: cx.theme().players().local(),
531 text: text_style,
532 syntax: cx.theme().syntax().clone(),
533 ..Default::default()
534 },
535 )
536 })
537 .into_any_element()
538 }
539
540 fn render_modal_footer(&self, window: &mut Window, cx: &mut Context<Self>) -> ModalFooter {
541 let focus_handle = self.focus_handle(cx);
542 let is_connecting = matches!(self.state, State::Waiting);
543
544 ModalFooter::new()
545 .start_slot::<Button>(
546 if let ConfigurationSource::Extension {
547 repository_url: Some(repository_url),
548 ..
549 } = &self.source
550 {
551 Some(
552 Button::new("open-repository", "Open Repository")
553 .icon(IconName::ArrowUpRight)
554 .icon_color(Color::Muted)
555 .icon_size(IconSize::XSmall)
556 .tooltip({
557 let repository_url = repository_url.clone();
558 move |window, cx| {
559 Tooltip::with_meta(
560 "Open Repository",
561 None,
562 repository_url.clone(),
563 window,
564 cx,
565 )
566 }
567 })
568 .on_click({
569 let repository_url = repository_url.clone();
570 move |_, _, cx| cx.open_url(&repository_url)
571 }),
572 )
573 } else {
574 None
575 },
576 )
577 .end_slot(
578 h_flex()
579 .gap_2()
580 .child(
581 Button::new(
582 "cancel",
583 if self.source.has_configuration_options() {
584 "Cancel"
585 } else {
586 "Dismiss"
587 },
588 )
589 .key_binding(
590 KeyBinding::for_action_in(&menu::Cancel, &focus_handle, window, cx)
591 .map(|kb| kb.size(rems_from_px(12.))),
592 )
593 .on_click(
594 cx.listener(|this, _event, _window, cx| this.cancel(&menu::Cancel, cx)),
595 ),
596 )
597 .children(self.source.has_configuration_options().then(|| {
598 Button::new(
599 "add-server",
600 if self.source.is_new() {
601 "Add Server"
602 } else {
603 "Configure Server"
604 },
605 )
606 .disabled(is_connecting)
607 .key_binding(
608 KeyBinding::for_action_in(&menu::Confirm, &focus_handle, window, cx)
609 .map(|kb| kb.size(rems_from_px(12.))),
610 )
611 .on_click(
612 cx.listener(|this, _event, _window, cx| {
613 this.confirm(&menu::Confirm, cx)
614 }),
615 )
616 })),
617 )
618 }
619
620 fn render_waiting_for_context_server() -> Div {
621 h_flex()
622 .gap_2()
623 .child(
624 Icon::new(IconName::ArrowCircle)
625 .size(IconSize::XSmall)
626 .color(Color::Info)
627 .with_animation(
628 "arrow-circle",
629 Animation::new(Duration::from_secs(2)).repeat(),
630 |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
631 )
632 .into_any_element(),
633 )
634 .child(
635 Label::new("Waiting for Context Server")
636 .size(LabelSize::Small)
637 .color(Color::Muted),
638 )
639 }
640
641 fn render_modal_error(error: SharedString) -> Div {
642 h_flex()
643 .gap_2()
644 .child(
645 Icon::new(IconName::Warning)
646 .size(IconSize::XSmall)
647 .color(Color::Warning),
648 )
649 .child(
650 div()
651 .w_full()
652 .child(Label::new(error).size(LabelSize::Small).color(Color::Muted)),
653 )
654 }
655}
656
657impl Render for ConfigureContextServerModal {
658 fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
659 div()
660 .elevation_3(cx)
661 .w(rems(34.))
662 .key_context("ConfigureContextServerModal")
663 .on_action(
664 cx.listener(|this, _: &menu::Cancel, _window, cx| this.cancel(&menu::Cancel, cx)),
665 )
666 .on_action(
667 cx.listener(|this, _: &menu::Confirm, _window, cx| {
668 this.confirm(&menu::Confirm, cx)
669 }),
670 )
671 .capture_any_mouse_down(cx.listener(|this, _, window, cx| {
672 this.focus_handle(cx).focus(window);
673 }))
674 .child(
675 Modal::new("configure-context-server", None)
676 .header(self.render_modal_header())
677 .section(
678 Section::new()
679 .child(self.render_modal_description(window, cx))
680 .child(self.render_modal_content(cx))
681 .child(match &self.state {
682 State::Idle => div(),
683 State::Waiting => Self::render_waiting_for_context_server(),
684 State::Error(error) => Self::render_modal_error(error.clone()),
685 }),
686 )
687 .footer(self.render_modal_footer(window, cx)),
688 )
689 }
690}
691
692fn wait_for_context_server(
693 context_server_store: &Entity<ContextServerStore>,
694 context_server_id: ContextServerId,
695 cx: &mut App,
696) -> Task<Result<(), Arc<str>>> {
697 let (tx, rx) = futures::channel::oneshot::channel();
698 let tx = Arc::new(Mutex::new(Some(tx)));
699
700 let subscription = cx.subscribe(context_server_store, move |_, event, _cx| match event {
701 project::context_server_store::Event::ServerStatusChanged { server_id, status } => {
702 match status {
703 ContextServerStatus::Running => {
704 if server_id == &context_server_id {
705 if let Some(tx) = tx.lock().unwrap().take() {
706 let _ = tx.send(Ok(()));
707 }
708 }
709 }
710 ContextServerStatus::Stopped => {
711 if server_id == &context_server_id {
712 if let Some(tx) = tx.lock().unwrap().take() {
713 let _ = tx.send(Err("Context server stopped running".into()));
714 }
715 }
716 }
717 ContextServerStatus::Error(error) => {
718 if server_id == &context_server_id {
719 if let Some(tx) = tx.lock().unwrap().take() {
720 let _ = tx.send(Err(error.clone()));
721 }
722 }
723 }
724 _ => {}
725 }
726 }
727 });
728
729 cx.spawn(async move |_cx| {
730 let result = rx.await.unwrap();
731 drop(subscription);
732 result
733 })
734}
735
736pub(crate) fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
737 let theme_settings = ThemeSettings::get_global(cx);
738 let colors = cx.theme().colors();
739 let mut text_style = window.text_style();
740 text_style.refine(&TextStyleRefinement {
741 font_family: Some(theme_settings.ui_font.family.clone()),
742 font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
743 font_features: Some(theme_settings.ui_font.features.clone()),
744 font_size: Some(TextSize::XSmall.rems(cx).into()),
745 color: Some(colors.text_muted),
746 ..Default::default()
747 });
748
749 MarkdownStyle {
750 base_text_style: text_style.clone(),
751 selection_background_color: colors.element_selection_background,
752 link: TextStyleRefinement {
753 background_color: Some(colors.editor_foreground.opacity(0.025)),
754 underline: Some(UnderlineStyle {
755 color: Some(colors.text_accent.opacity(0.5)),
756 thickness: px(1.),
757 ..Default::default()
758 }),
759 ..Default::default()
760 },
761 ..Default::default()
762 }
763}