1mod server;
2mod thread_view;
3
4use agentic_coding_protocol::{self as acp, Role};
5use anyhow::{Context as _, Result};
6use chrono::{DateTime, Utc};
7use futures::channel::oneshot;
8use gpui::{AppContext, Context, Entity, EventEmitter, SharedString, Task};
9use language::LanguageRegistry;
10use markdown::Markdown;
11use project::Project;
12use std::{mem, ops::Range, path::PathBuf, sync::Arc};
13use ui::App;
14use util::{ResultExt, debug_panic};
15
16pub use server::AcpServer;
17pub use thread_view::AcpThreadView;
18
19#[derive(Debug, Clone, PartialEq, Eq, Hash)]
20pub struct ThreadId(SharedString);
21
22#[derive(Copy, Clone, Debug, PartialEq, Eq)]
23pub struct FileVersion(u64);
24
25#[derive(Debug)]
26pub struct AgentThreadSummary {
27 pub id: ThreadId,
28 pub title: String,
29 pub created_at: DateTime<Utc>,
30}
31
32#[derive(Clone, Debug, PartialEq, Eq)]
33pub struct FileContent {
34 pub path: PathBuf,
35 pub version: FileVersion,
36 pub content: SharedString,
37}
38
39#[derive(Clone, Debug, Eq, PartialEq)]
40pub struct Message {
41 pub role: acp::Role,
42 pub chunks: Vec<MessageChunk>,
43}
44
45impl Message {
46 fn into_acp(self, cx: &App) -> acp::Message {
47 acp::Message {
48 role: self.role,
49 chunks: self
50 .chunks
51 .into_iter()
52 .map(|chunk| chunk.into_acp(cx))
53 .collect(),
54 }
55 }
56}
57
58#[derive(Clone, Debug, Eq, PartialEq)]
59pub enum MessageChunk {
60 Text {
61 chunk: Entity<Markdown>,
62 },
63 File {
64 content: FileContent,
65 },
66 Directory {
67 path: PathBuf,
68 contents: Vec<FileContent>,
69 },
70 Symbol {
71 path: PathBuf,
72 range: Range<u64>,
73 version: FileVersion,
74 name: SharedString,
75 content: SharedString,
76 },
77 Fetch {
78 url: SharedString,
79 content: SharedString,
80 },
81}
82
83impl MessageChunk {
84 pub fn from_acp(
85 chunk: acp::MessageChunk,
86 language_registry: Arc<LanguageRegistry>,
87 cx: &mut App,
88 ) -> Self {
89 match chunk {
90 acp::MessageChunk::Text { chunk } => MessageChunk::Text {
91 chunk: cx.new(|cx| Markdown::new(chunk.into(), Some(language_registry), None, cx)),
92 },
93 }
94 }
95
96 pub fn into_acp(self, cx: &App) -> acp::MessageChunk {
97 match self {
98 MessageChunk::Text { chunk } => acp::MessageChunk::Text {
99 chunk: chunk.read(cx).source().to_string(),
100 },
101 MessageChunk::File { .. } => todo!(),
102 MessageChunk::Directory { .. } => todo!(),
103 MessageChunk::Symbol { .. } => todo!(),
104 MessageChunk::Fetch { .. } => todo!(),
105 }
106 }
107
108 pub fn from_str(chunk: &str, language_registry: Arc<LanguageRegistry>, cx: &mut App) -> Self {
109 MessageChunk::Text {
110 chunk: cx.new(|cx| {
111 Markdown::new(chunk.to_owned().into(), Some(language_registry), None, cx)
112 }),
113 }
114 }
115}
116
117#[derive(Debug)]
118pub enum AgentThreadEntryContent {
119 Message(Message),
120 ToolCall(ToolCall),
121}
122
123#[derive(Debug)]
124pub struct ToolCall {
125 id: ToolCallId,
126 display_name: Entity<Markdown>,
127 status: ToolCallStatus,
128}
129
130#[derive(Debug)]
131pub enum ToolCallStatus {
132 WaitingForConfirmation {
133 confirmation: acp::ToolCallConfirmation,
134 respond_tx: oneshot::Sender<acp::ToolCallConfirmationOutcome>,
135 },
136 // todo! Running?
137 Allowed {
138 // todo! should this be variants in crate::ToolCallStatus instead?
139 status: acp::ToolCallStatus,
140 content: Option<Entity<Markdown>>,
141 },
142 Rejected,
143}
144
145/// A `ThreadEntryId` that is known to be a ToolCall
146#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
147pub struct ToolCallId(ThreadEntryId);
148
149impl ToolCallId {
150 pub fn as_u64(&self) -> u64 {
151 self.0.0
152 }
153}
154
155#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
156pub struct ThreadEntryId(pub u64);
157
158impl ThreadEntryId {
159 pub fn post_inc(&mut self) -> Self {
160 let id = *self;
161 self.0 += 1;
162 id
163 }
164}
165
166#[derive(Debug)]
167pub struct ThreadEntry {
168 pub id: ThreadEntryId,
169 pub content: AgentThreadEntryContent,
170}
171
172pub struct AcpThread {
173 id: ThreadId,
174 next_entry_id: ThreadEntryId,
175 entries: Vec<ThreadEntry>,
176 server: Arc<AcpServer>,
177 title: SharedString,
178 project: Entity<Project>,
179}
180
181enum AcpThreadEvent {
182 NewEntry,
183 EntryUpdated(usize),
184}
185
186impl EventEmitter<AcpThreadEvent> for AcpThread {}
187
188impl AcpThread {
189 pub fn new(
190 server: Arc<AcpServer>,
191 thread_id: ThreadId,
192 entries: Vec<AgentThreadEntryContent>,
193 project: Entity<Project>,
194 _: &mut Context<Self>,
195 ) -> Self {
196 let mut next_entry_id = ThreadEntryId(0);
197 Self {
198 title: "A new agent2 thread".into(),
199 entries: entries
200 .into_iter()
201 .map(|entry| ThreadEntry {
202 id: next_entry_id.post_inc(),
203 content: entry,
204 })
205 .collect(),
206 server,
207 id: thread_id,
208 next_entry_id,
209 project,
210 }
211 }
212
213 pub fn title(&self) -> SharedString {
214 self.title.clone()
215 }
216
217 pub fn entries(&self) -> &[ThreadEntry] {
218 &self.entries
219 }
220
221 pub fn push_entry(
222 &mut self,
223 entry: AgentThreadEntryContent,
224 cx: &mut Context<Self>,
225 ) -> ThreadEntryId {
226 let id = self.next_entry_id.post_inc();
227 self.entries.push(ThreadEntry { id, content: entry });
228 cx.emit(AcpThreadEvent::NewEntry);
229 id
230 }
231
232 pub fn push_assistant_chunk(&mut self, chunk: acp::MessageChunk, cx: &mut Context<Self>) {
233 let entries_len = self.entries.len();
234 if let Some(last_entry) = self.entries.last_mut()
235 && let AgentThreadEntryContent::Message(Message {
236 ref mut chunks,
237 role: Role::Assistant,
238 }) = last_entry.content
239 {
240 cx.emit(AcpThreadEvent::EntryUpdated(entries_len - 1));
241
242 if let (
243 Some(MessageChunk::Text { chunk: old_chunk }),
244 acp::MessageChunk::Text { chunk: new_chunk },
245 ) = (chunks.last_mut(), &chunk)
246 {
247 old_chunk.update(cx, |old_chunk, cx| {
248 old_chunk.append(&new_chunk, cx);
249 });
250 } else {
251 chunks.push(MessageChunk::from_acp(
252 chunk,
253 self.project.read(cx).languages().clone(),
254 cx,
255 ));
256 }
257
258 return;
259 }
260
261 let chunk = MessageChunk::from_acp(chunk, self.project.read(cx).languages().clone(), cx);
262
263 self.push_entry(
264 AgentThreadEntryContent::Message(Message {
265 role: Role::Assistant,
266 chunks: vec![chunk],
267 }),
268 cx,
269 );
270 }
271
272 pub fn request_tool_call(
273 &mut self,
274 display_name: String,
275 confirmation: acp::ToolCallConfirmation,
276 cx: &mut Context<Self>,
277 ) -> ToolCallRequest {
278 let (tx, rx) = oneshot::channel();
279
280 let status = ToolCallStatus::WaitingForConfirmation {
281 confirmation,
282 respond_tx: tx,
283 };
284
285 let id = self.insert_tool_call(display_name, status, cx);
286 ToolCallRequest { id, outcome: rx }
287 }
288
289 pub fn push_tool_call(&mut self, display_name: String, cx: &mut Context<Self>) -> ToolCallId {
290 let status = ToolCallStatus::Allowed {
291 status: acp::ToolCallStatus::Running,
292 content: None,
293 };
294
295 self.insert_tool_call(display_name, status, cx)
296 }
297
298 fn insert_tool_call(
299 &mut self,
300 display_name: String,
301 status: ToolCallStatus,
302 cx: &mut Context<Self>,
303 ) -> ToolCallId {
304 let language_registry = self.project.read(cx).languages().clone();
305
306 let entry_id = self.push_entry(
307 AgentThreadEntryContent::ToolCall(ToolCall {
308 // todo! clean up id creation
309 id: ToolCallId(ThreadEntryId(self.entries.len() as u64)),
310 display_name: cx.new(|cx| {
311 Markdown::new(
312 display_name.into(),
313 Some(language_registry.clone()),
314 None,
315 cx,
316 )
317 }),
318 status,
319 }),
320 cx,
321 );
322
323 ToolCallId(entry_id)
324 }
325
326 pub fn authorize_tool_call(
327 &mut self,
328 id: ToolCallId,
329 outcome: acp::ToolCallConfirmationOutcome,
330 cx: &mut Context<Self>,
331 ) {
332 let Some(entry) = self.entry_mut(id.0) else {
333 return;
334 };
335
336 let AgentThreadEntryContent::ToolCall(call) = &mut entry.content else {
337 debug_panic!("expected ToolCall");
338 return;
339 };
340
341 let new_status = if outcome == acp::ToolCallConfirmationOutcome::Reject {
342 ToolCallStatus::Rejected
343 } else {
344 ToolCallStatus::Allowed {
345 status: acp::ToolCallStatus::Running,
346 content: None,
347 }
348 };
349
350 let curr_status = mem::replace(&mut call.status, new_status);
351
352 if let ToolCallStatus::WaitingForConfirmation { respond_tx, .. } = curr_status {
353 respond_tx.send(outcome).log_err();
354 } else {
355 debug_panic!("tried to authorize an already authorized tool call");
356 }
357
358 cx.emit(AcpThreadEvent::EntryUpdated(id.as_u64() as usize));
359 }
360
361 pub fn update_tool_call(
362 &mut self,
363 id: ToolCallId,
364 new_status: acp::ToolCallStatus,
365 new_content: Option<acp::ToolCallContent>,
366 cx: &mut Context<Self>,
367 ) -> Result<()> {
368 let language_registry = self.project.read(cx).languages().clone();
369 let entry = self.entry_mut(id.0).context("Entry not found")?;
370
371 match &mut entry.content {
372 AgentThreadEntryContent::ToolCall(call) => match &mut call.status {
373 ToolCallStatus::Allowed { content, status } => {
374 *content = new_content.map(|new_content| {
375 let acp::ToolCallContent::Markdown { markdown } = new_content;
376
377 cx.new(|cx| {
378 Markdown::new(markdown.into(), Some(language_registry), None, cx)
379 })
380 });
381
382 *status = new_status;
383 }
384 ToolCallStatus::WaitingForConfirmation { .. } => {
385 anyhow::bail!("Tool call hasn't been authorized yet")
386 }
387 ToolCallStatus::Rejected => {
388 anyhow::bail!("Tool call was rejected and therefore can't be updated")
389 }
390 },
391 _ => anyhow::bail!("Entry is not a tool call"),
392 }
393
394 cx.emit(AcpThreadEvent::EntryUpdated(id.as_u64() as usize));
395 Ok(())
396 }
397
398 fn entry_mut(&mut self, id: ThreadEntryId) -> Option<&mut ThreadEntry> {
399 let entry = self.entries.get_mut(id.0 as usize);
400 debug_assert!(
401 entry.is_some(),
402 "We shouldn't give out ids to entries that don't exist"
403 );
404 entry
405 }
406
407 /// Returns true if the last turn is awaiting tool authorization
408 pub fn waiting_for_tool_confirmation(&self) -> bool {
409 for entry in self.entries.iter().rev() {
410 match &entry.content {
411 AgentThreadEntryContent::ToolCall(call) => match call.status {
412 ToolCallStatus::WaitingForConfirmation { .. } => return true,
413 ToolCallStatus::Allowed { .. } | ToolCallStatus::Rejected => continue,
414 },
415 AgentThreadEntryContent::Message(_) => {
416 // Reached the beginning of the turn
417 return false;
418 }
419 }
420 }
421 false
422 }
423
424 pub fn send(&mut self, message: &str, cx: &mut Context<Self>) -> Task<Result<()>> {
425 let agent = self.server.clone();
426 let id = self.id.clone();
427 let chunk = MessageChunk::from_str(message, self.project.read(cx).languages().clone(), cx);
428 let message = Message {
429 role: Role::User,
430 chunks: vec![chunk],
431 };
432 self.push_entry(AgentThreadEntryContent::Message(message.clone()), cx);
433 let acp_message = message.into_acp(cx);
434 cx.spawn(async move |_, cx| {
435 agent.send_message(id, acp_message, cx).await?;
436 Ok(())
437 })
438 }
439}
440
441pub struct ToolCallRequest {
442 pub id: ToolCallId,
443 pub outcome: oneshot::Receiver<acp::ToolCallConfirmationOutcome>,
444}
445
446#[cfg(test)]
447mod tests {
448 use super::*;
449 use gpui::{AsyncApp, TestAppContext};
450 use project::FakeFs;
451 use serde_json::json;
452 use settings::SettingsStore;
453 use std::{env, path::Path, process::Stdio};
454 use util::path;
455
456 fn init_test(cx: &mut TestAppContext) {
457 env_logger::try_init().ok();
458 cx.update(|cx| {
459 let settings_store = SettingsStore::test(cx);
460 cx.set_global(settings_store);
461 Project::init_settings(cx);
462 language::init(cx);
463 });
464 }
465
466 #[gpui::test]
467 async fn test_gemini_basic(cx: &mut TestAppContext) {
468 init_test(cx);
469
470 cx.executor().allow_parking();
471
472 let fs = FakeFs::new(cx.executor());
473 let project = Project::test(fs, [], cx).await;
474 let server = gemini_acp_server(project.clone(), cx.to_async()).unwrap();
475 let thread = server.create_thread(&mut cx.to_async()).await.unwrap();
476 thread
477 .update(cx, |thread, cx| thread.send("Hello from Zed!", cx))
478 .await
479 .unwrap();
480
481 thread.read_with(cx, |thread, _| {
482 assert_eq!(thread.entries.len(), 2);
483 assert!(matches!(
484 thread.entries[0].content,
485 AgentThreadEntryContent::Message(Message {
486 role: Role::User,
487 ..
488 })
489 ));
490 assert!(matches!(
491 thread.entries[1].content,
492 AgentThreadEntryContent::Message(Message {
493 role: Role::Assistant,
494 ..
495 })
496 ));
497 });
498 }
499
500 #[gpui::test]
501 async fn test_gemini_tool_call(cx: &mut TestAppContext) {
502 init_test(cx);
503
504 cx.executor().allow_parking();
505
506 let fs = FakeFs::new(cx.executor());
507 fs.insert_tree(
508 path!("/private/tmp"),
509 json!({"foo": "Lorem ipsum dolor", "bar": "bar", "baz": "baz"}),
510 )
511 .await;
512 let project = Project::test(fs, [path!("/private/tmp").as_ref()], cx).await;
513 let server = gemini_acp_server(project.clone(), cx.to_async()).unwrap();
514 let thread = server.create_thread(&mut cx.to_async()).await.unwrap();
515 thread
516 .update(cx, |thread, cx| {
517 thread.send(
518 "Read the '/private/tmp/foo' file and tell me what you see.",
519 cx,
520 )
521 })
522 .await
523 .unwrap();
524 thread.read_with(cx, |thread, cx| {
525 let AgentThreadEntryContent::ToolCall(ToolCall {
526 id,
527 display_name,
528 status: ToolCallStatus::Allowed { content, .. },
529 }) = &thread.entries()[1].content
530 else {
531 panic!();
532 };
533
534 display_name.read_with(cx, |md, _cx| {
535 assert_eq!(md.source(), "ReadFile");
536 });
537
538 // todo!
539 // description.read_with(cx, |md, _cx| {
540 // assert!(
541 // md.source().contains("foo"),
542 // "Expected description to contain 'foo', but got {}",
543 // md.source()
544 // );
545 // });
546 *id
547 });
548 }
549
550 pub fn gemini_acp_server(project: Entity<Project>, mut cx: AsyncApp) -> Result<Arc<AcpServer>> {
551 let cli_path =
552 Path::new(env!("CARGO_MANIFEST_DIR")).join("../../../gemini-cli/packages/cli");
553 let mut command = util::command::new_smol_command("node");
554 command
555 .arg(cli_path)
556 .arg("--acp")
557 .args(["--model", "gemini-2.5-flash"])
558 .current_dir("/private/tmp")
559 .stdin(Stdio::piped())
560 .stdout(Stdio::piped())
561 .stderr(Stdio::inherit())
562 .kill_on_drop(true);
563
564 if let Ok(gemini_key) = std::env::var("GEMINI_API_KEY") {
565 command.env("GEMINI_API_KEY", gemini_key);
566 }
567
568 let child = command.spawn().unwrap();
569
570 Ok(AcpServer::stdio(child, project, &mut cx))
571 }
572}