1mod acp;
2mod thread_element;
3
4use anyhow::Result;
5use async_trait::async_trait;
6use chrono::{DateTime, Utc};
7use gpui::{AppContext, AsyncApp, Context, Entity, SharedString, Task};
8use project::Project;
9use std::{ops::Range, path::PathBuf, sync::Arc};
10
11pub use acp::AcpAgent;
12pub use thread_element::ThreadElement;
13
14#[async_trait(?Send)]
15pub trait Agent: 'static {
16 async fn threads(&self, cx: &mut AsyncApp) -> Result<Vec<AgentThreadSummary>>;
17 async fn create_thread(self: Arc<Self>, cx: &mut AsyncApp) -> Result<Entity<Thread>>;
18 async fn open_thread(&self, id: ThreadId, cx: &mut AsyncApp) -> Result<Entity<Thread>>;
19 async fn thread_entries(
20 &self,
21 id: ThreadId,
22 cx: &mut AsyncApp,
23 ) -> Result<Vec<AgentThreadEntryContent>>;
24 async fn send_thread_message(
25 &self,
26 thread_id: ThreadId,
27 message: Message,
28 cx: &mut AsyncApp,
29 ) -> Result<()>;
30}
31
32#[derive(Debug, Clone, PartialEq, Eq, Hash)]
33pub struct ThreadId(SharedString);
34
35#[derive(Copy, Clone, Debug, PartialEq, Eq)]
36pub struct FileVersion(u64);
37
38#[derive(Debug)]
39pub struct AgentThreadSummary {
40 pub id: ThreadId,
41 pub title: String,
42 pub created_at: DateTime<Utc>,
43}
44
45#[derive(Clone, Debug, PartialEq, Eq)]
46pub struct FileContent {
47 pub path: PathBuf,
48 pub version: FileVersion,
49 pub content: SharedString,
50}
51
52#[derive(Copy, Clone, Debug, Eq, PartialEq)]
53pub enum Role {
54 User,
55 Assistant,
56}
57
58#[derive(Clone, Debug, Eq, PartialEq)]
59pub struct Message {
60 pub role: Role,
61 pub chunks: Vec<MessageChunk>,
62}
63
64#[derive(Clone, Debug, Eq, PartialEq)]
65pub enum MessageChunk {
66 Text {
67 chunk: SharedString,
68 },
69 File {
70 content: FileContent,
71 },
72 Directory {
73 path: PathBuf,
74 contents: Vec<FileContent>,
75 },
76 Symbol {
77 path: PathBuf,
78 range: Range<u64>,
79 version: FileVersion,
80 name: SharedString,
81 content: SharedString,
82 },
83 Fetch {
84 url: SharedString,
85 content: SharedString,
86 },
87}
88
89impl From<&str> for MessageChunk {
90 fn from(chunk: &str) -> Self {
91 MessageChunk::Text {
92 chunk: chunk.to_string().into(),
93 }
94 }
95}
96
97#[derive(Clone, Debug, Eq, PartialEq)]
98pub enum AgentThreadEntryContent {
99 Message(Message),
100 ReadFile { path: PathBuf, content: String },
101}
102
103#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
104pub struct ThreadEntryId(usize);
105
106impl ThreadEntryId {
107 pub fn post_inc(&mut self) -> Self {
108 let id = *self;
109 self.0 += 1;
110 id
111 }
112}
113
114#[derive(Debug)]
115pub struct ThreadEntry {
116 pub id: ThreadEntryId,
117 pub content: AgentThreadEntryContent,
118}
119
120pub struct ThreadStore {
121 threads: Vec<AgentThreadSummary>,
122 agent: Arc<dyn Agent>,
123 project: Entity<Project>,
124}
125
126impl ThreadStore {
127 pub async fn load(
128 agent: Arc<dyn Agent>,
129 project: Entity<Project>,
130 cx: &mut AsyncApp,
131 ) -> Result<Entity<Self>> {
132 let threads = agent.threads(cx).await?;
133 cx.new(|_cx| Self {
134 threads,
135 agent,
136 project,
137 })
138 }
139
140 /// Returns the threads in reverse chronological order.
141 pub fn threads(&self) -> &[AgentThreadSummary] {
142 &self.threads
143 }
144
145 /// Opens a thread with the given ID.
146 pub fn open_thread(
147 &self,
148 id: ThreadId,
149 cx: &mut Context<Self>,
150 ) -> Task<Result<Entity<Thread>>> {
151 let agent = self.agent.clone();
152 cx.spawn(async move |_, cx| agent.open_thread(id, cx).await)
153 }
154
155 /// Creates a new thread.
156 pub fn create_thread(&self, cx: &mut Context<Self>) -> Task<Result<Entity<Thread>>> {
157 let agent = self.agent.clone();
158 cx.spawn(async move |_, cx| agent.create_thread(cx).await)
159 }
160}
161
162pub struct Thread {
163 id: ThreadId,
164 next_entry_id: ThreadEntryId,
165 entries: Vec<ThreadEntry>,
166 agent: Arc<dyn Agent>,
167 title: SharedString,
168 project: Entity<Project>,
169}
170
171impl Thread {
172 pub async fn load(
173 agent: Arc<dyn Agent>,
174 thread_id: ThreadId,
175 project: Entity<Project>,
176 cx: &mut AsyncApp,
177 ) -> Result<Entity<Self>> {
178 let entries = agent.thread_entries(thread_id.clone(), cx).await?;
179 cx.new(|cx| Self::new(agent, thread_id, entries, project, cx))
180 }
181
182 pub fn new(
183 agent: Arc<dyn Agent>,
184 thread_id: ThreadId,
185 entries: Vec<AgentThreadEntryContent>,
186 project: Entity<Project>,
187 _: &mut Context<Self>,
188 ) -> Self {
189 let mut next_entry_id = ThreadEntryId(0);
190 Self {
191 title: "A new agent2 thread".into(),
192 entries: entries
193 .into_iter()
194 .map(|entry| ThreadEntry {
195 id: next_entry_id.post_inc(),
196 content: entry,
197 })
198 .collect(),
199 agent,
200 id: thread_id,
201 next_entry_id,
202 project,
203 }
204 }
205
206 pub fn title(&self) -> SharedString {
207 self.title.clone()
208 }
209
210 pub fn entries(&self) -> &[ThreadEntry] {
211 &self.entries
212 }
213
214 pub fn push_entry(&mut self, entry: AgentThreadEntryContent, cx: &mut Context<Self>) {
215 self.entries.push(ThreadEntry {
216 id: self.next_entry_id.post_inc(),
217 content: entry,
218 });
219 cx.notify();
220 }
221
222 pub fn push_assistant_chunk(&mut self, chunk: MessageChunk, cx: &mut Context<Self>) {
223 if let Some(last_entry) = self.entries.last_mut() {
224 if let AgentThreadEntryContent::Message(Message {
225 ref mut chunks,
226 role: Role::Assistant,
227 }) = last_entry.content
228 {
229 chunks.push(chunk);
230 return;
231 }
232 }
233
234 self.entries.push(ThreadEntry {
235 id: self.next_entry_id.post_inc(),
236 content: AgentThreadEntryContent::Message(Message {
237 role: Role::Assistant,
238 chunks: vec![chunk],
239 }),
240 });
241 cx.notify();
242 }
243
244 pub fn send(&mut self, message: Message, cx: &mut Context<Self>) -> Task<Result<()>> {
245 let agent = self.agent.clone();
246 let id = self.id.clone();
247 self.push_entry(AgentThreadEntryContent::Message(message.clone()), cx);
248 cx.spawn(async move |_, cx| {
249 agent.send_thread_message(id, message, cx).await?;
250 Ok(())
251 })
252 }
253}
254
255#[cfg(test)]
256mod tests {
257 use super::*;
258 use crate::acp::AcpAgent;
259 use gpui::TestAppContext;
260 use project::FakeFs;
261 use serde_json::json;
262 use settings::SettingsStore;
263 use std::{env, path::Path, process::Stdio};
264 use util::path;
265
266 fn init_test(cx: &mut TestAppContext) {
267 env_logger::init();
268 cx.update(|cx| {
269 let settings_store = SettingsStore::test(cx);
270 cx.set_global(settings_store);
271 Project::init_settings(cx);
272 language::init(cx);
273 });
274 }
275
276 #[gpui::test]
277 async fn test_gemini(cx: &mut TestAppContext) {
278 init_test(cx);
279
280 cx.executor().allow_parking();
281
282 let fs = FakeFs::new(cx.executor());
283 fs.insert_tree(
284 path!("/private/tmp"),
285 json!({"foo": "Lorem ipsum dolor", "bar": "bar", "baz": "baz"}),
286 )
287 .await;
288 let project = Project::test(fs, [path!("/private/tmp").as_ref()], cx).await;
289 let agent = gemini_agent(project.clone(), cx.to_async()).unwrap();
290 let thread_store = ThreadStore::load(agent, project, &mut cx.to_async())
291 .await
292 .unwrap();
293 let thread = thread_store
294 .update(cx, |thread_store, cx| {
295 assert_eq!(thread_store.threads().len(), 0);
296 thread_store.create_thread(cx)
297 })
298 .await
299 .unwrap();
300 thread
301 .update(cx, |thread, cx| {
302 thread.send(
303 Message {
304 role: Role::User,
305 chunks: vec![
306 "Read the '/private/tmp/foo' file and output all of its contents."
307 .into(),
308 ],
309 },
310 cx,
311 )
312 })
313 .await
314 .unwrap();
315
316 thread.read_with(cx, |thread, _| {
317 assert!(matches!(
318 thread.entries[0].content,
319 AgentThreadEntryContent::Message(Message {
320 role: Role::User,
321 ..
322 })
323 ));
324 assert!(
325 thread.entries().iter().any(|entry| {
326 entry.content
327 == AgentThreadEntryContent::ReadFile {
328 path: "/private/tmp/foo".into(),
329 content: "Lorem ipsum dolor".into(),
330 }
331 }),
332 "Thread does not contain entry. Actual: {:?}",
333 thread.entries()
334 );
335 });
336 }
337
338 pub fn gemini_agent(project: Entity<Project>, mut cx: AsyncApp) -> Result<Arc<AcpAgent>> {
339 let cli_path =
340 Path::new(env!("CARGO_MANIFEST_DIR")).join("../../../gemini-cli/packages/cli");
341 let mut command = util::command::new_smol_command("node");
342 command
343 .arg(cli_path)
344 .arg("--acp")
345 .args(["--model", "gemini-2.5-flash"])
346 .current_dir("/private/tmp")
347 .stdin(Stdio::piped())
348 .stdout(Stdio::piped())
349 .stderr(Stdio::inherit())
350 .kill_on_drop(true);
351
352 if let Ok(gemini_key) = std::env::var("GEMINI_API_KEY") {
353 command.env("GEMINI_API_KEY", gemini_key);
354 }
355
356 let child = command.spawn().unwrap();
357
358 Ok(AcpAgent::stdio(child, project, &mut cx))
359 }
360}