user.rs

  1use super::{Client, Status, TypedEnvelope, proto};
  2use anyhow::{Context as _, Result, anyhow};
  3use chrono::{DateTime, Utc};
  4use collections::{HashMap, HashSet, hash_map::Entry};
  5use feature_flags::FeatureFlagAppExt;
  6use futures::{Future, StreamExt, channel::mpsc};
  7use gpui::{
  8    App, AsyncApp, Context, Entity, EventEmitter, SharedString, SharedUri, Task, WeakEntity,
  9};
 10use postage::{sink::Sink, watch};
 11use rpc::proto::{RequestMessage, UsersResponse};
 12use std::sync::{Arc, Weak};
 13use text::ReplicaId;
 14use util::TryFutureExt as _;
 15
 16pub type UserId = u64;
 17
 18#[derive(
 19    Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, serde::Serialize, serde::Deserialize,
 20)]
 21pub struct ChannelId(pub u64);
 22
 23impl std::fmt::Display for ChannelId {
 24    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 25        self.0.fmt(f)
 26    }
 27}
 28
 29#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy)]
 30pub struct ProjectId(pub u64);
 31
 32impl ProjectId {
 33    pub fn to_proto(&self) -> u64 {
 34        self.0
 35    }
 36}
 37
 38#[derive(
 39    Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, serde::Serialize, serde::Deserialize,
 40)]
 41pub struct DevServerProjectId(pub u64);
 42
 43#[derive(Debug, Clone, Copy, PartialEq, Eq)]
 44pub struct ParticipantIndex(pub u32);
 45
 46#[derive(Default, Debug)]
 47pub struct User {
 48    pub id: UserId,
 49    pub github_login: String,
 50    pub avatar_uri: SharedUri,
 51    pub name: Option<String>,
 52    pub email: Option<String>,
 53}
 54
 55#[derive(Clone, Debug, PartialEq, Eq)]
 56pub struct Collaborator {
 57    pub peer_id: proto::PeerId,
 58    pub replica_id: ReplicaId,
 59    pub user_id: UserId,
 60    pub is_host: bool,
 61}
 62
 63impl PartialOrd for User {
 64    fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
 65        Some(self.cmp(other))
 66    }
 67}
 68
 69impl Ord for User {
 70    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
 71        self.github_login.cmp(&other.github_login)
 72    }
 73}
 74
 75impl PartialEq for User {
 76    fn eq(&self, other: &Self) -> bool {
 77        self.id == other.id && self.github_login == other.github_login
 78    }
 79}
 80
 81impl Eq for User {}
 82
 83#[derive(Debug, PartialEq)]
 84pub struct Contact {
 85    pub user: Arc<User>,
 86    pub online: bool,
 87    pub busy: bool,
 88}
 89
 90#[derive(Debug, Clone, Copy, PartialEq, Eq)]
 91pub enum ContactRequestStatus {
 92    None,
 93    RequestSent,
 94    RequestReceived,
 95    RequestAccepted,
 96}
 97
 98pub struct UserStore {
 99    users: HashMap<u64, Arc<User>>,
100    by_github_login: HashMap<String, u64>,
101    participant_indices: HashMap<u64, ParticipantIndex>,
102    update_contacts_tx: mpsc::UnboundedSender<UpdateContacts>,
103    current_plan: Option<proto::Plan>,
104    current_user: watch::Receiver<Option<Arc<User>>>,
105    accepted_tos_at: Option<Option<DateTime<Utc>>>,
106    contacts: Vec<Arc<Contact>>,
107    incoming_contact_requests: Vec<Arc<User>>,
108    outgoing_contact_requests: Vec<Arc<User>>,
109    pending_contact_requests: HashMap<u64, usize>,
110    invite_info: Option<InviteInfo>,
111    client: Weak<Client>,
112    _maintain_contacts: Task<()>,
113    _maintain_current_user: Task<Result<()>>,
114    weak_self: WeakEntity<Self>,
115}
116
117#[derive(Clone)]
118pub struct InviteInfo {
119    pub count: u32,
120    pub url: Arc<str>,
121}
122
123pub enum Event {
124    Contact {
125        user: Arc<User>,
126        kind: ContactEventKind,
127    },
128    ShowContacts,
129    ParticipantIndicesChanged,
130    PrivateUserInfoUpdated,
131}
132
133#[derive(Clone, Copy)]
134pub enum ContactEventKind {
135    Requested,
136    Accepted,
137    Cancelled,
138}
139
140impl EventEmitter<Event> for UserStore {}
141
142enum UpdateContacts {
143    Update(proto::UpdateContacts),
144    Wait(postage::barrier::Sender),
145    Clear(postage::barrier::Sender),
146}
147
148impl UserStore {
149    pub fn new(client: Arc<Client>, cx: &Context<Self>) -> Self {
150        let (mut current_user_tx, current_user_rx) = watch::channel();
151        let (update_contacts_tx, mut update_contacts_rx) = mpsc::unbounded();
152        let rpc_subscriptions = vec![
153            client.add_message_handler(cx.weak_entity(), Self::handle_update_plan),
154            client.add_message_handler(cx.weak_entity(), Self::handle_update_contacts),
155            client.add_message_handler(cx.weak_entity(), Self::handle_update_invite_info),
156            client.add_message_handler(cx.weak_entity(), Self::handle_show_contacts),
157        ];
158        Self {
159            users: Default::default(),
160            by_github_login: Default::default(),
161            current_user: current_user_rx,
162            current_plan: None,
163            accepted_tos_at: None,
164            contacts: Default::default(),
165            incoming_contact_requests: Default::default(),
166            participant_indices: Default::default(),
167            outgoing_contact_requests: Default::default(),
168            invite_info: None,
169            client: Arc::downgrade(&client),
170            update_contacts_tx,
171            _maintain_contacts: cx.spawn(async move |this, cx| {
172                let _subscriptions = rpc_subscriptions;
173                while let Some(message) = update_contacts_rx.next().await {
174                    if let Ok(task) = this.update(cx, |this, cx| this.update_contacts(message, cx))
175                    {
176                        task.log_err().await;
177                    } else {
178                        break;
179                    }
180                }
181            }),
182            _maintain_current_user: cx.spawn(async move |this, cx| {
183                let mut status = client.status();
184                let weak = Arc::downgrade(&client);
185                drop(client);
186                while let Some(status) = status.next().await {
187                    // if the client is dropped, the app is shutting down.
188                    let Some(client) = weak.upgrade() else {
189                        return Ok(());
190                    };
191                    match status {
192                        Status::Connected { .. } => {
193                            if let Some(user_id) = client.user_id() {
194                                let fetch_user = if let Ok(fetch_user) =
195                                    this.update(cx, |this, cx| this.get_user(user_id, cx).log_err())
196                                {
197                                    fetch_user
198                                } else {
199                                    break;
200                                };
201                                let fetch_private_user_info =
202                                    client.request(proto::GetPrivateUserInfo {}).log_err();
203                                let (user, info) =
204                                    futures::join!(fetch_user, fetch_private_user_info);
205
206                                cx.update(|cx| {
207                                    if let Some(info) = info {
208                                        let staff =
209                                            info.staff && !*feature_flags::ZED_DISABLE_STAFF;
210                                        cx.update_flags(staff, info.flags);
211                                        client.telemetry.set_authenticated_user_info(
212                                            Some(info.metrics_id.clone()),
213                                            staff,
214                                        );
215
216                                        this.update(cx, |this, cx| {
217                                            let accepted_tos_at = {
218                                                #[cfg(debug_assertions)]
219                                                if std::env::var("ZED_IGNORE_ACCEPTED_TOS").is_ok()
220                                                {
221                                                    None
222                                                } else {
223                                                    info.accepted_tos_at
224                                                }
225
226                                                #[cfg(not(debug_assertions))]
227                                                info.accepted_tos_at
228                                            };
229
230                                            this.set_current_user_accepted_tos_at(accepted_tos_at);
231                                            cx.emit(Event::PrivateUserInfoUpdated);
232                                        })
233                                    } else {
234                                        anyhow::Ok(())
235                                    }
236                                })??;
237
238                                current_user_tx.send(user).await.ok();
239
240                                this.update(cx, |_, cx| cx.notify())?;
241                            }
242                        }
243                        Status::SignedOut => {
244                            current_user_tx.send(None).await.ok();
245                            this.update(cx, |this, cx| {
246                                this.accepted_tos_at = None;
247                                cx.emit(Event::PrivateUserInfoUpdated);
248                                cx.notify();
249                                this.clear_contacts()
250                            })?
251                            .await;
252                        }
253                        Status::ConnectionLost => {
254                            this.update(cx, |this, cx| {
255                                cx.notify();
256                                this.clear_contacts()
257                            })?
258                            .await;
259                        }
260                        _ => {}
261                    }
262                }
263                Ok(())
264            }),
265            pending_contact_requests: Default::default(),
266            weak_self: cx.weak_entity(),
267        }
268    }
269
270    #[cfg(feature = "test-support")]
271    pub fn clear_cache(&mut self) {
272        self.users.clear();
273        self.by_github_login.clear();
274    }
275
276    async fn handle_update_invite_info(
277        this: Entity<Self>,
278        message: TypedEnvelope<proto::UpdateInviteInfo>,
279        mut cx: AsyncApp,
280    ) -> Result<()> {
281        this.update(&mut cx, |this, cx| {
282            this.invite_info = Some(InviteInfo {
283                url: Arc::from(message.payload.url),
284                count: message.payload.count,
285            });
286            cx.notify();
287        })?;
288        Ok(())
289    }
290
291    async fn handle_show_contacts(
292        this: Entity<Self>,
293        _: TypedEnvelope<proto::ShowContacts>,
294        mut cx: AsyncApp,
295    ) -> Result<()> {
296        this.update(&mut cx, |_, cx| cx.emit(Event::ShowContacts))?;
297        Ok(())
298    }
299
300    pub fn invite_info(&self) -> Option<&InviteInfo> {
301        self.invite_info.as_ref()
302    }
303
304    async fn handle_update_contacts(
305        this: Entity<Self>,
306        message: TypedEnvelope<proto::UpdateContacts>,
307        mut cx: AsyncApp,
308    ) -> Result<()> {
309        this.update(&mut cx, |this, _| {
310            this.update_contacts_tx
311                .unbounded_send(UpdateContacts::Update(message.payload))
312                .unwrap();
313        })?;
314        Ok(())
315    }
316
317    async fn handle_update_plan(
318        this: Entity<Self>,
319        message: TypedEnvelope<proto::UpdateUserPlan>,
320        mut cx: AsyncApp,
321    ) -> Result<()> {
322        this.update(&mut cx, |this, cx| {
323            this.current_plan = Some(message.payload.plan());
324            cx.notify();
325        })?;
326        Ok(())
327    }
328
329    fn update_contacts(&mut self, message: UpdateContacts, cx: &Context<Self>) -> Task<Result<()>> {
330        match message {
331            UpdateContacts::Wait(barrier) => {
332                drop(barrier);
333                Task::ready(Ok(()))
334            }
335            UpdateContacts::Clear(barrier) => {
336                self.contacts.clear();
337                self.incoming_contact_requests.clear();
338                self.outgoing_contact_requests.clear();
339                drop(barrier);
340                Task::ready(Ok(()))
341            }
342            UpdateContacts::Update(message) => {
343                let mut user_ids = HashSet::default();
344                for contact in &message.contacts {
345                    user_ids.insert(contact.user_id);
346                }
347                user_ids.extend(message.incoming_requests.iter().map(|req| req.requester_id));
348                user_ids.extend(message.outgoing_requests.iter());
349
350                let load_users = self.get_users(user_ids.into_iter().collect(), cx);
351                cx.spawn(async move |this, cx| {
352                    load_users.await?;
353
354                    // Users are fetched in parallel above and cached in call to get_users
355                    // No need to parallelize here
356                    let mut updated_contacts = Vec::new();
357                    let this = this
358                        .upgrade()
359                        .ok_or_else(|| anyhow!("can't upgrade user store handle"))?;
360                    for contact in message.contacts {
361                        updated_contacts
362                            .push(Arc::new(Contact::from_proto(contact, &this, cx).await?));
363                    }
364
365                    let mut incoming_requests = Vec::new();
366                    for request in message.incoming_requests {
367                        incoming_requests.push({
368                            this.update(cx, |this, cx| this.get_user(request.requester_id, cx))?
369                                .await?
370                        });
371                    }
372
373                    let mut outgoing_requests = Vec::new();
374                    for requested_user_id in message.outgoing_requests {
375                        outgoing_requests.push(
376                            this.update(cx, |this, cx| this.get_user(requested_user_id, cx))?
377                                .await?,
378                        );
379                    }
380
381                    let removed_contacts =
382                        HashSet::<u64>::from_iter(message.remove_contacts.iter().copied());
383                    let removed_incoming_requests =
384                        HashSet::<u64>::from_iter(message.remove_incoming_requests.iter().copied());
385                    let removed_outgoing_requests =
386                        HashSet::<u64>::from_iter(message.remove_outgoing_requests.iter().copied());
387
388                    this.update(cx, |this, cx| {
389                        // Remove contacts
390                        this.contacts
391                            .retain(|contact| !removed_contacts.contains(&contact.user.id));
392                        // Update existing contacts and insert new ones
393                        for updated_contact in updated_contacts {
394                            match this.contacts.binary_search_by_key(
395                                &&updated_contact.user.github_login,
396                                |contact| &contact.user.github_login,
397                            ) {
398                                Ok(ix) => this.contacts[ix] = updated_contact,
399                                Err(ix) => this.contacts.insert(ix, updated_contact),
400                            }
401                        }
402
403                        // Remove incoming contact requests
404                        this.incoming_contact_requests.retain(|user| {
405                            if removed_incoming_requests.contains(&user.id) {
406                                cx.emit(Event::Contact {
407                                    user: user.clone(),
408                                    kind: ContactEventKind::Cancelled,
409                                });
410                                false
411                            } else {
412                                true
413                            }
414                        });
415                        // Update existing incoming requests and insert new ones
416                        for user in incoming_requests {
417                            match this
418                                .incoming_contact_requests
419                                .binary_search_by_key(&&user.github_login, |contact| {
420                                    &contact.github_login
421                                }) {
422                                Ok(ix) => this.incoming_contact_requests[ix] = user,
423                                Err(ix) => this.incoming_contact_requests.insert(ix, user),
424                            }
425                        }
426
427                        // Remove outgoing contact requests
428                        this.outgoing_contact_requests
429                            .retain(|user| !removed_outgoing_requests.contains(&user.id));
430                        // Update existing incoming requests and insert new ones
431                        for request in outgoing_requests {
432                            match this
433                                .outgoing_contact_requests
434                                .binary_search_by_key(&&request.github_login, |contact| {
435                                    &contact.github_login
436                                }) {
437                                Ok(ix) => this.outgoing_contact_requests[ix] = request,
438                                Err(ix) => this.outgoing_contact_requests.insert(ix, request),
439                            }
440                        }
441
442                        cx.notify();
443                    })?;
444
445                    Ok(())
446                })
447            }
448        }
449    }
450
451    pub fn contacts(&self) -> &[Arc<Contact>] {
452        &self.contacts
453    }
454
455    pub fn has_contact(&self, user: &Arc<User>) -> bool {
456        self.contacts
457            .binary_search_by_key(&&user.github_login, |contact| &contact.user.github_login)
458            .is_ok()
459    }
460
461    pub fn incoming_contact_requests(&self) -> &[Arc<User>] {
462        &self.incoming_contact_requests
463    }
464
465    pub fn outgoing_contact_requests(&self) -> &[Arc<User>] {
466        &self.outgoing_contact_requests
467    }
468
469    pub fn is_contact_request_pending(&self, user: &User) -> bool {
470        self.pending_contact_requests.contains_key(&user.id)
471    }
472
473    pub fn contact_request_status(&self, user: &User) -> ContactRequestStatus {
474        if self
475            .contacts
476            .binary_search_by_key(&&user.github_login, |contact| &contact.user.github_login)
477            .is_ok()
478        {
479            ContactRequestStatus::RequestAccepted
480        } else if self
481            .outgoing_contact_requests
482            .binary_search_by_key(&&user.github_login, |user| &user.github_login)
483            .is_ok()
484        {
485            ContactRequestStatus::RequestSent
486        } else if self
487            .incoming_contact_requests
488            .binary_search_by_key(&&user.github_login, |user| &user.github_login)
489            .is_ok()
490        {
491            ContactRequestStatus::RequestReceived
492        } else {
493            ContactRequestStatus::None
494        }
495    }
496
497    pub fn request_contact(
498        &mut self,
499        responder_id: u64,
500        cx: &mut Context<Self>,
501    ) -> Task<Result<()>> {
502        self.perform_contact_request(responder_id, proto::RequestContact { responder_id }, cx)
503    }
504
505    pub fn remove_contact(&mut self, user_id: u64, cx: &mut Context<Self>) -> Task<Result<()>> {
506        self.perform_contact_request(user_id, proto::RemoveContact { user_id }, cx)
507    }
508
509    pub fn has_incoming_contact_request(&self, user_id: u64) -> bool {
510        self.incoming_contact_requests
511            .iter()
512            .any(|user| user.id == user_id)
513    }
514
515    pub fn respond_to_contact_request(
516        &mut self,
517        requester_id: u64,
518        accept: bool,
519        cx: &mut Context<Self>,
520    ) -> Task<Result<()>> {
521        self.perform_contact_request(
522            requester_id,
523            proto::RespondToContactRequest {
524                requester_id,
525                response: if accept {
526                    proto::ContactRequestResponse::Accept
527                } else {
528                    proto::ContactRequestResponse::Decline
529                } as i32,
530            },
531            cx,
532        )
533    }
534
535    pub fn dismiss_contact_request(
536        &self,
537        requester_id: u64,
538        cx: &Context<Self>,
539    ) -> Task<Result<()>> {
540        let client = self.client.upgrade();
541        cx.spawn(async move |_, _| {
542            client
543                .ok_or_else(|| anyhow!("can't upgrade client reference"))?
544                .request(proto::RespondToContactRequest {
545                    requester_id,
546                    response: proto::ContactRequestResponse::Dismiss as i32,
547                })
548                .await?;
549            Ok(())
550        })
551    }
552
553    fn perform_contact_request<T: RequestMessage>(
554        &mut self,
555        user_id: u64,
556        request: T,
557        cx: &mut Context<Self>,
558    ) -> Task<Result<()>> {
559        let client = self.client.upgrade();
560        *self.pending_contact_requests.entry(user_id).or_insert(0) += 1;
561        cx.notify();
562
563        cx.spawn(async move |this, cx| {
564            let response = client
565                .ok_or_else(|| anyhow!("can't upgrade client reference"))?
566                .request(request)
567                .await;
568            this.update(cx, |this, cx| {
569                if let Entry::Occupied(mut request_count) =
570                    this.pending_contact_requests.entry(user_id)
571                {
572                    *request_count.get_mut() -= 1;
573                    if *request_count.get() == 0 {
574                        request_count.remove();
575                    }
576                }
577                cx.notify();
578            })?;
579            response?;
580            Ok(())
581        })
582    }
583
584    pub fn clear_contacts(&self) -> impl Future<Output = ()> + use<> {
585        let (tx, mut rx) = postage::barrier::channel();
586        self.update_contacts_tx
587            .unbounded_send(UpdateContacts::Clear(tx))
588            .unwrap();
589        async move {
590            rx.next().await;
591        }
592    }
593
594    pub fn contact_updates_done(&self) -> impl Future<Output = ()> {
595        let (tx, mut rx) = postage::barrier::channel();
596        self.update_contacts_tx
597            .unbounded_send(UpdateContacts::Wait(tx))
598            .unwrap();
599        async move {
600            rx.next().await;
601        }
602    }
603
604    pub fn get_users(
605        &self,
606        user_ids: Vec<u64>,
607        cx: &Context<Self>,
608    ) -> Task<Result<Vec<Arc<User>>>> {
609        let mut user_ids_to_fetch = user_ids.clone();
610        user_ids_to_fetch.retain(|id| !self.users.contains_key(id));
611
612        cx.spawn(async move |this, cx| {
613            if !user_ids_to_fetch.is_empty() {
614                this.update(cx, |this, cx| {
615                    this.load_users(
616                        proto::GetUsers {
617                            user_ids: user_ids_to_fetch,
618                        },
619                        cx,
620                    )
621                })?
622                .await?;
623            }
624
625            this.update(cx, |this, _| {
626                user_ids
627                    .iter()
628                    .map(|user_id| {
629                        this.users
630                            .get(user_id)
631                            .cloned()
632                            .ok_or_else(|| anyhow!("user {} not found", user_id))
633                    })
634                    .collect()
635            })?
636        })
637    }
638
639    pub fn fuzzy_search_users(
640        &self,
641        query: String,
642        cx: &Context<Self>,
643    ) -> Task<Result<Vec<Arc<User>>>> {
644        self.load_users(proto::FuzzySearchUsers { query }, cx)
645    }
646
647    pub fn get_cached_user(&self, user_id: u64) -> Option<Arc<User>> {
648        self.users.get(&user_id).cloned()
649    }
650
651    pub fn get_user_optimistic(&self, user_id: u64, cx: &Context<Self>) -> Option<Arc<User>> {
652        if let Some(user) = self.users.get(&user_id).cloned() {
653            return Some(user);
654        }
655
656        self.get_user(user_id, cx).detach_and_log_err(cx);
657        None
658    }
659
660    pub fn get_user(&self, user_id: u64, cx: &Context<Self>) -> Task<Result<Arc<User>>> {
661        if let Some(user) = self.users.get(&user_id).cloned() {
662            return Task::ready(Ok(user));
663        }
664
665        let load_users = self.get_users(vec![user_id], cx);
666        cx.spawn(async move |this, cx| {
667            load_users.await?;
668            this.update(cx, |this, _| {
669                this.users
670                    .get(&user_id)
671                    .cloned()
672                    .ok_or_else(|| anyhow!("server responded with no users"))
673            })?
674        })
675    }
676
677    pub fn cached_user_by_github_login(&self, github_login: &str) -> Option<Arc<User>> {
678        self.by_github_login
679            .get(github_login)
680            .and_then(|id| self.users.get(id).cloned())
681    }
682
683    pub fn current_user(&self) -> Option<Arc<User>> {
684        self.current_user.borrow().clone()
685    }
686
687    pub fn current_plan(&self) -> Option<proto::Plan> {
688        self.current_plan
689    }
690
691    pub fn watch_current_user(&self) -> watch::Receiver<Option<Arc<User>>> {
692        self.current_user.clone()
693    }
694
695    pub fn current_user_has_accepted_terms(&self) -> Option<bool> {
696        self.accepted_tos_at
697            .map(|accepted_tos_at| accepted_tos_at.is_some())
698    }
699
700    pub fn accept_terms_of_service(&self, cx: &Context<Self>) -> Task<Result<()>> {
701        if self.current_user().is_none() {
702            return Task::ready(Err(anyhow!("no current user")));
703        };
704
705        let client = self.client.clone();
706        cx.spawn(async move |this, cx| {
707            if let Some(client) = client.upgrade() {
708                let response = client
709                    .request(proto::AcceptTermsOfService {})
710                    .await
711                    .context("error accepting tos")?;
712
713                this.update(cx, |this, cx| {
714                    this.set_current_user_accepted_tos_at(Some(response.accepted_tos_at));
715                    cx.emit(Event::PrivateUserInfoUpdated);
716                })
717            } else {
718                Err(anyhow!("client not found"))
719            }
720        })
721    }
722
723    fn set_current_user_accepted_tos_at(&mut self, accepted_tos_at: Option<u64>) {
724        self.accepted_tos_at = Some(
725            accepted_tos_at.and_then(|timestamp| DateTime::from_timestamp(timestamp as i64, 0)),
726        );
727    }
728
729    fn load_users(
730        &self,
731        request: impl RequestMessage<Response = UsersResponse>,
732        cx: &Context<Self>,
733    ) -> Task<Result<Vec<Arc<User>>>> {
734        let client = self.client.clone();
735        cx.spawn(async move |this, cx| {
736            if let Some(rpc) = client.upgrade() {
737                let response = rpc.request(request).await.context("error loading users")?;
738                let users = response.users;
739
740                this.update(cx, |this, _| this.insert(users))
741            } else {
742                Ok(Vec::new())
743            }
744        })
745    }
746
747    pub fn insert(&mut self, users: Vec<proto::User>) -> Vec<Arc<User>> {
748        let mut ret = Vec::with_capacity(users.len());
749        for user in users {
750            let user = User::new(user);
751            if let Some(old) = self.users.insert(user.id, user.clone()) {
752                if old.github_login != user.github_login {
753                    self.by_github_login.remove(&old.github_login);
754                }
755            }
756            self.by_github_login
757                .insert(user.github_login.clone(), user.id);
758            ret.push(user)
759        }
760        ret
761    }
762
763    pub fn set_participant_indices(
764        &mut self,
765        participant_indices: HashMap<u64, ParticipantIndex>,
766        cx: &mut Context<Self>,
767    ) {
768        if participant_indices != self.participant_indices {
769            self.participant_indices = participant_indices;
770            cx.emit(Event::ParticipantIndicesChanged);
771        }
772    }
773
774    pub fn participant_indices(&self) -> &HashMap<u64, ParticipantIndex> {
775        &self.participant_indices
776    }
777
778    pub fn participant_names(
779        &self,
780        user_ids: impl Iterator<Item = u64>,
781        cx: &App,
782    ) -> HashMap<u64, SharedString> {
783        let mut ret = HashMap::default();
784        let mut missing_user_ids = Vec::new();
785        for id in user_ids {
786            if let Some(github_login) = self.get_cached_user(id).map(|u| u.github_login.clone()) {
787                ret.insert(id, github_login.into());
788            } else {
789                missing_user_ids.push(id)
790            }
791        }
792        if !missing_user_ids.is_empty() {
793            let this = self.weak_self.clone();
794            cx.spawn(async move |cx| {
795                this.update(cx, |this, cx| this.get_users(missing_user_ids, cx))?
796                    .await
797            })
798            .detach_and_log_err(cx);
799        }
800        ret
801    }
802}
803
804impl User {
805    fn new(message: proto::User) -> Arc<Self> {
806        Arc::new(User {
807            id: message.id,
808            github_login: message.github_login,
809            avatar_uri: message.avatar_url.into(),
810            name: message.name,
811            email: message.email,
812        })
813    }
814}
815
816impl Contact {
817    async fn from_proto(
818        contact: proto::Contact,
819        user_store: &Entity<UserStore>,
820        cx: &mut AsyncApp,
821    ) -> Result<Self> {
822        let user = user_store
823            .update(cx, |user_store, cx| {
824                user_store.get_user(contact.user_id, cx)
825            })?
826            .await?;
827        Ok(Self {
828            user,
829            online: contact.online,
830            busy: contact.busy,
831        })
832    }
833}
834
835impl Collaborator {
836    pub fn from_proto(message: proto::Collaborator) -> Result<Self> {
837        Ok(Self {
838            peer_id: message.peer_id.ok_or_else(|| anyhow!("invalid peer id"))?,
839            replica_id: message.replica_id as ReplicaId,
840            user_id: message.user_id as UserId,
841            is_host: message.is_host,
842        })
843    }
844}