1use anyhow::{anyhow, Result};
2use async_trait::async_trait;
3use collections::HashMap;
4use futures::Stream;
5use gpui::executor::Background;
6use lazy_static::lazy_static;
7use live_kit_server::token;
8use media::core_video::CVImageBuffer;
9use parking_lot::Mutex;
10use postage::watch;
11use std::{future::Future, mem, sync::Arc};
12
13lazy_static! {
14 static ref SERVERS: Mutex<HashMap<String, Arc<TestServer>>> = Default::default();
15}
16
17pub struct TestServer {
18 pub url: String,
19 pub api_key: String,
20 pub secret_key: String,
21 rooms: Mutex<HashMap<String, TestServerRoom>>,
22 background: Arc<Background>,
23}
24
25impl TestServer {
26 pub fn create(
27 url: String,
28 api_key: String,
29 secret_key: String,
30 background: Arc<Background>,
31 ) -> Result<Arc<TestServer>> {
32 let mut servers = SERVERS.lock();
33 if servers.contains_key(&url) {
34 Err(anyhow!("a server with url {:?} already exists", url))
35 } else {
36 let server = Arc::new(TestServer {
37 url: url.clone(),
38 api_key,
39 secret_key,
40 rooms: Default::default(),
41 background,
42 });
43 servers.insert(url, server.clone());
44 Ok(server)
45 }
46 }
47
48 fn get(url: &str) -> Result<Arc<TestServer>> {
49 Ok(SERVERS
50 .lock()
51 .get(url)
52 .ok_or_else(|| anyhow!("no server found for url"))?
53 .clone())
54 }
55
56 pub fn teardown(&self) -> Result<()> {
57 SERVERS
58 .lock()
59 .remove(&self.url)
60 .ok_or_else(|| anyhow!("server with url {:?} does not exist", self.url))?;
61 Ok(())
62 }
63
64 pub fn create_api_client(&self) -> TestApiClient {
65 TestApiClient {
66 url: self.url.clone(),
67 }
68 }
69
70 async fn create_room(&self, room: String) -> Result<()> {
71 self.background.simulate_random_delay().await;
72 let mut server_rooms = self.rooms.lock();
73 if server_rooms.contains_key(&room) {
74 Err(anyhow!("room {:?} already exists", room))
75 } else {
76 server_rooms.insert(room, Default::default());
77 Ok(())
78 }
79 }
80
81 async fn delete_room(&self, room: String) -> Result<()> {
82 // TODO: clear state associated with all `Room`s.
83 self.background.simulate_random_delay().await;
84 let mut server_rooms = self.rooms.lock();
85 server_rooms
86 .remove(&room)
87 .ok_or_else(|| anyhow!("room {:?} does not exist", room))?;
88 Ok(())
89 }
90
91 async fn join_room(&self, token: String, client_room: Arc<Room>) -> Result<()> {
92 self.background.simulate_random_delay().await;
93 let claims = live_kit_server::token::validate(&token, &self.secret_key)?;
94 let identity = claims.sub.unwrap().to_string();
95 let room_name = claims.video.room.unwrap();
96 let mut server_rooms = self.rooms.lock();
97 let room = server_rooms
98 .get_mut(&*room_name)
99 .ok_or_else(|| anyhow!("room {:?} does not exist", room_name))?;
100 if room.client_rooms.contains_key(&identity) {
101 Err(anyhow!(
102 "{:?} attempted to join room {:?} twice",
103 identity,
104 room_name
105 ))
106 } else {
107 for track in &room.tracks {
108 client_room
109 .0
110 .lock()
111 .video_track_updates
112 .0
113 .try_broadcast(RemoteVideoTrackUpdate::Subscribed(track.clone()))
114 .unwrap();
115 }
116 room.client_rooms.insert(identity, client_room);
117 Ok(())
118 }
119 }
120
121 async fn leave_room(&self, token: String) -> Result<()> {
122 self.background.simulate_random_delay().await;
123 let claims = live_kit_server::token::validate(&token, &self.secret_key)?;
124 let identity = claims.sub.unwrap().to_string();
125 let room_name = claims.video.room.unwrap();
126 let mut server_rooms = self.rooms.lock();
127 let room = server_rooms
128 .get_mut(&*room_name)
129 .ok_or_else(|| anyhow!("room {} does not exist", room_name))?;
130 room.client_rooms.remove(&identity).ok_or_else(|| {
131 anyhow!(
132 "{:?} attempted to leave room {:?} before joining it",
133 identity,
134 room_name
135 )
136 })?;
137 Ok(())
138 }
139
140 async fn remove_participant(&self, room_name: String, identity: String) -> Result<()> {
141 // TODO: clear state associated with the `Room`.
142
143 self.background.simulate_random_delay().await;
144 let mut server_rooms = self.rooms.lock();
145 let room = server_rooms
146 .get_mut(&room_name)
147 .ok_or_else(|| anyhow!("room {} does not exist", room_name))?;
148 room.client_rooms.remove(&identity).ok_or_else(|| {
149 anyhow!(
150 "participant {:?} did not join room {:?}",
151 identity,
152 room_name
153 )
154 })?;
155 Ok(())
156 }
157
158 pub async fn disconnect_client(&self, client_identity: String) {
159 self.background.simulate_random_delay().await;
160 let mut server_rooms = self.rooms.lock();
161 for room in server_rooms.values_mut() {
162 if let Some(room) = room.client_rooms.remove(&client_identity) {
163 *room.0.lock().connection.0.borrow_mut() = ConnectionState::Disconnected;
164 }
165 }
166 }
167
168 async fn publish_video_track(&self, token: String, local_track: LocalVideoTrack) -> Result<()> {
169 self.background.simulate_random_delay().await;
170 let claims = live_kit_server::token::validate(&token, &self.secret_key)?;
171 let identity = claims.sub.unwrap().to_string();
172 let room_name = claims.video.room.unwrap();
173
174 let mut server_rooms = self.rooms.lock();
175 let room = server_rooms
176 .get_mut(&*room_name)
177 .ok_or_else(|| anyhow!("room {} does not exist", room_name))?;
178
179 let track = Arc::new(RemoteVideoTrack {
180 sid: nanoid::nanoid!(17),
181 publisher_id: identity.clone(),
182 frames_rx: local_track.frames_rx.clone(),
183 });
184
185 room.tracks.push(track.clone());
186
187 for (id, client_room) in &room.client_rooms {
188 if *id != identity {
189 let _ = client_room
190 .0
191 .lock()
192 .video_track_updates
193 .0
194 .try_broadcast(RemoteVideoTrackUpdate::Subscribed(track.clone()))
195 .unwrap();
196 }
197 }
198
199 Ok(())
200 }
201
202 fn video_tracks(&self, token: String) -> Result<Vec<Arc<RemoteVideoTrack>>> {
203 let claims = live_kit_server::token::validate(&token, &self.secret_key)?;
204 let room_name = claims.video.room.unwrap();
205
206 let mut server_rooms = self.rooms.lock();
207 let room = server_rooms
208 .get_mut(&*room_name)
209 .ok_or_else(|| anyhow!("room {} does not exist", room_name))?;
210 Ok(room.tracks.clone())
211 }
212}
213
214#[derive(Default)]
215struct TestServerRoom {
216 client_rooms: HashMap<Sid, Arc<Room>>,
217 tracks: Vec<Arc<RemoteVideoTrack>>,
218}
219
220impl TestServerRoom {}
221
222pub struct TestApiClient {
223 url: String,
224}
225
226#[async_trait]
227impl live_kit_server::api::Client for TestApiClient {
228 fn url(&self) -> &str {
229 &self.url
230 }
231
232 async fn create_room(&self, name: String) -> Result<()> {
233 let server = TestServer::get(&self.url)?;
234 server.create_room(name).await?;
235 Ok(())
236 }
237
238 async fn delete_room(&self, name: String) -> Result<()> {
239 let server = TestServer::get(&self.url)?;
240 server.delete_room(name).await?;
241 Ok(())
242 }
243
244 async fn remove_participant(&self, room: String, identity: String) -> Result<()> {
245 let server = TestServer::get(&self.url)?;
246 server.remove_participant(room, identity).await?;
247 Ok(())
248 }
249
250 fn room_token(&self, room: &str, identity: &str) -> Result<String> {
251 let server = TestServer::get(&self.url)?;
252 token::create(
253 &server.api_key,
254 &server.secret_key,
255 Some(identity),
256 token::VideoGrant::to_join(room),
257 )
258 }
259}
260
261pub type Sid = String;
262
263struct RoomState {
264 connection: (
265 watch::Sender<ConnectionState>,
266 watch::Receiver<ConnectionState>,
267 ),
268 display_sources: Vec<MacOSDisplay>,
269 video_track_updates: (
270 async_broadcast::Sender<RemoteVideoTrackUpdate>,
271 async_broadcast::Receiver<RemoteVideoTrackUpdate>,
272 ),
273}
274
275#[derive(Clone, Eq, PartialEq)]
276pub enum ConnectionState {
277 Disconnected,
278 Connected { url: String, token: String },
279}
280
281pub struct Room(Mutex<RoomState>);
282
283impl Room {
284 pub fn new() -> Arc<Self> {
285 Arc::new(Self(Mutex::new(RoomState {
286 connection: watch::channel_with(ConnectionState::Disconnected),
287 display_sources: Default::default(),
288 video_track_updates: async_broadcast::broadcast(128),
289 })))
290 }
291
292 pub fn status(&self) -> watch::Receiver<ConnectionState> {
293 self.0.lock().connection.1.clone()
294 }
295
296 pub fn connect(self: &Arc<Self>, url: &str, token: &str) -> impl Future<Output = Result<()>> {
297 let this = self.clone();
298 let url = url.to_string();
299 let token = token.to_string();
300 async move {
301 let server = TestServer::get(&url)?;
302 server.join_room(token.clone(), this.clone()).await?;
303 *this.0.lock().connection.0.borrow_mut() = ConnectionState::Connected { url, token };
304 Ok(())
305 }
306 }
307
308 pub fn display_sources(self: &Arc<Self>) -> impl Future<Output = Result<Vec<MacOSDisplay>>> {
309 let this = self.clone();
310 async move {
311 let server = this.test_server();
312 server.background.simulate_random_delay().await;
313 Ok(this.0.lock().display_sources.clone())
314 }
315 }
316
317 pub fn publish_video_track(
318 self: &Arc<Self>,
319 track: &LocalVideoTrack,
320 ) -> impl Future<Output = Result<LocalTrackPublication>> {
321 let this = self.clone();
322 let track = track.clone();
323 async move {
324 this.test_server()
325 .publish_video_track(this.token(), track)
326 .await?;
327 Ok(LocalTrackPublication)
328 }
329 }
330
331 pub fn unpublish_track(&self, _: LocalTrackPublication) {}
332
333 pub fn remote_video_tracks(&self, publisher_id: &str) -> Vec<Arc<RemoteVideoTrack>> {
334 if !self.is_connected() {
335 return Vec::new();
336 }
337
338 self.test_server()
339 .video_tracks(self.token())
340 .unwrap()
341 .into_iter()
342 .filter(|track| track.publisher_id() == publisher_id)
343 .collect()
344 }
345
346 pub fn remote_video_track_updates(&self) -> impl Stream<Item = RemoteVideoTrackUpdate> {
347 self.0.lock().video_track_updates.1.clone()
348 }
349
350 pub fn set_display_sources(&self, sources: Vec<MacOSDisplay>) {
351 self.0.lock().display_sources = sources;
352 }
353
354 fn test_server(&self) -> Arc<TestServer> {
355 match self.0.lock().connection.1.borrow().clone() {
356 ConnectionState::Disconnected => panic!("must be connected to call this method"),
357 ConnectionState::Connected { url, .. } => TestServer::get(&url).unwrap(),
358 }
359 }
360
361 fn token(&self) -> String {
362 match self.0.lock().connection.1.borrow().clone() {
363 ConnectionState::Disconnected => panic!("must be connected to call this method"),
364 ConnectionState::Connected { token, .. } => token,
365 }
366 }
367
368 fn is_connected(&self) -> bool {
369 match *self.0.lock().connection.1.borrow() {
370 ConnectionState::Disconnected => false,
371 ConnectionState::Connected { .. } => true,
372 }
373 }
374}
375
376impl Drop for Room {
377 fn drop(&mut self) {
378 if let ConnectionState::Connected { token, .. } = mem::replace(
379 &mut *self.0.lock().connection.0.borrow_mut(),
380 ConnectionState::Disconnected,
381 ) {
382 if let Ok(server) = TestServer::get(&token) {
383 let background = server.background.clone();
384 background
385 .spawn(async move { server.leave_room(token).await.unwrap() })
386 .detach();
387 }
388 }
389 }
390}
391
392pub struct LocalTrackPublication;
393
394#[derive(Clone)]
395pub struct LocalVideoTrack {
396 frames_rx: async_broadcast::Receiver<Frame>,
397}
398
399impl LocalVideoTrack {
400 pub fn screen_share_for_display(display: &MacOSDisplay) -> Self {
401 Self {
402 frames_rx: display.frames.1.clone(),
403 }
404 }
405}
406
407pub struct RemoteVideoTrack {
408 sid: Sid,
409 publisher_id: Sid,
410 frames_rx: async_broadcast::Receiver<Frame>,
411}
412
413impl RemoteVideoTrack {
414 pub fn sid(&self) -> &str {
415 &self.sid
416 }
417
418 pub fn publisher_id(&self) -> &str {
419 &self.publisher_id
420 }
421
422 pub fn frames(&self) -> async_broadcast::Receiver<Frame> {
423 self.frames_rx.clone()
424 }
425}
426
427#[derive(Clone)]
428pub enum RemoteVideoTrackUpdate {
429 Subscribed(Arc<RemoteVideoTrack>),
430 Unsubscribed { publisher_id: Sid, track_id: Sid },
431}
432
433#[derive(Clone)]
434pub struct MacOSDisplay {
435 frames: (
436 async_broadcast::Sender<Frame>,
437 async_broadcast::Receiver<Frame>,
438 ),
439}
440
441impl MacOSDisplay {
442 pub fn new() -> Self {
443 Self {
444 frames: async_broadcast::broadcast(128),
445 }
446 }
447
448 pub fn send_frame(&self, frame: Frame) {
449 self.frames.0.try_broadcast(frame).unwrap();
450 }
451}
452
453#[derive(Clone, Debug, PartialEq, Eq)]
454pub struct Frame {
455 pub label: String,
456 pub width: usize,
457 pub height: usize,
458}
459
460impl Frame {
461 pub fn width(&self) -> usize {
462 self.width
463 }
464
465 pub fn height(&self) -> usize {
466 self.height
467 }
468
469 pub fn image(&self) -> CVImageBuffer {
470 unimplemented!("you can't call this in test mode")
471 }
472}