rooms.rs

   1use anyhow::Context as _;
   2
   3use super::*;
   4
   5impl Database {
   6    /// Clears all room participants in rooms attached to a stale server.
   7    pub async fn clear_stale_room_participants(
   8        &self,
   9        room_id: RoomId,
  10        new_server_id: ServerId,
  11    ) -> Result<TransactionGuard<RefreshedRoom>> {
  12        self.room_transaction(room_id, |tx| async move {
  13            let stale_participant_filter = Condition::all()
  14                .add(room_participant::Column::RoomId.eq(room_id))
  15                .add(room_participant::Column::AnsweringConnectionId.is_not_null())
  16                .add(room_participant::Column::AnsweringConnectionServerId.ne(new_server_id));
  17
  18            let stale_participant_user_ids = room_participant::Entity::find()
  19                .filter(stale_participant_filter.clone())
  20                .all(&*tx)
  21                .await?
  22                .into_iter()
  23                .map(|participant| participant.user_id)
  24                .collect::<Vec<_>>();
  25
  26            // Delete participants who failed to reconnect and cancel their calls.
  27            let mut canceled_calls_to_user_ids = Vec::new();
  28            room_participant::Entity::delete_many()
  29                .filter(stale_participant_filter)
  30                .exec(&*tx)
  31                .await?;
  32            let called_participants = room_participant::Entity::find()
  33                .filter(
  34                    Condition::all()
  35                        .add(
  36                            room_participant::Column::CallingUserId
  37                                .is_in(stale_participant_user_ids.iter().copied()),
  38                        )
  39                        .add(room_participant::Column::AnsweringConnectionId.is_null()),
  40                )
  41                .all(&*tx)
  42                .await?;
  43            room_participant::Entity::delete_many()
  44                .filter(
  45                    room_participant::Column::Id
  46                        .is_in(called_participants.iter().map(|participant| participant.id)),
  47                )
  48                .exec(&*tx)
  49                .await?;
  50            canceled_calls_to_user_ids.extend(
  51                called_participants
  52                    .into_iter()
  53                    .map(|participant| participant.user_id),
  54            );
  55
  56            let (channel, room) = self.get_channel_room(room_id, &tx).await?;
  57            if channel.is_none() {
  58                // Delete the room if it becomes empty.
  59                if room.participants.is_empty() {
  60                    project::Entity::delete_many()
  61                        .filter(project::Column::RoomId.eq(room_id))
  62                        .exec(&*tx)
  63                        .await?;
  64                    room::Entity::delete_by_id(room_id).exec(&*tx).await?;
  65                }
  66            };
  67
  68            Ok(RefreshedRoom {
  69                room,
  70                channel,
  71                stale_participant_user_ids,
  72                canceled_calls_to_user_ids,
  73            })
  74        })
  75        .await
  76    }
  77
  78    /// Returns the incoming calls for user with the given ID.
  79    pub async fn incoming_call_for_user(
  80        &self,
  81        user_id: UserId,
  82    ) -> Result<Option<proto::IncomingCall>> {
  83        self.transaction(|tx| async move {
  84            let pending_participant = room_participant::Entity::find()
  85                .filter(
  86                    room_participant::Column::UserId
  87                        .eq(user_id)
  88                        .and(room_participant::Column::AnsweringConnectionId.is_null()),
  89                )
  90                .one(&*tx)
  91                .await?;
  92
  93            if let Some(pending_participant) = pending_participant {
  94                let room = self.get_room(pending_participant.room_id, &tx).await?;
  95                Ok(Self::build_incoming_call(&room, user_id))
  96            } else {
  97                Ok(None)
  98            }
  99        })
 100        .await
 101    }
 102
 103    /// Creates a new room.
 104    pub async fn create_room(
 105        &self,
 106        user_id: UserId,
 107        connection: ConnectionId,
 108        livekit_room: &str,
 109    ) -> Result<proto::Room> {
 110        self.transaction(|tx| async move {
 111            let room = room::ActiveModel {
 112                live_kit_room: ActiveValue::set(livekit_room.into()),
 113                ..Default::default()
 114            }
 115            .insert(&*tx)
 116            .await?;
 117            room_participant::ActiveModel {
 118                room_id: ActiveValue::set(room.id),
 119                user_id: ActiveValue::set(user_id),
 120                answering_connection_id: ActiveValue::set(Some(connection.id as i32)),
 121                answering_connection_server_id: ActiveValue::set(Some(ServerId(
 122                    connection.owner_id as i32,
 123                ))),
 124                answering_connection_lost: ActiveValue::set(false),
 125                calling_user_id: ActiveValue::set(user_id),
 126                calling_connection_id: ActiveValue::set(connection.id as i32),
 127                calling_connection_server_id: ActiveValue::set(Some(ServerId(
 128                    connection.owner_id as i32,
 129                ))),
 130                participant_index: ActiveValue::set(Some(0)),
 131                role: ActiveValue::set(Some(ChannelRole::Admin)),
 132
 133                id: ActiveValue::NotSet,
 134                location_kind: ActiveValue::NotSet,
 135                location_project_id: ActiveValue::NotSet,
 136                initial_project_id: ActiveValue::NotSet,
 137            }
 138            .insert(&*tx)
 139            .await?;
 140
 141            let room = self.get_room(room.id, &tx).await?;
 142            Ok(room)
 143        })
 144        .await
 145    }
 146
 147    pub async fn call(
 148        &self,
 149        room_id: RoomId,
 150        calling_user_id: UserId,
 151        calling_connection: ConnectionId,
 152        called_user_id: UserId,
 153        initial_project_id: Option<ProjectId>,
 154    ) -> Result<TransactionGuard<(proto::Room, proto::IncomingCall)>> {
 155        self.room_transaction(room_id, |tx| async move {
 156            let caller = room_participant::Entity::find()
 157                .filter(
 158                    room_participant::Column::UserId
 159                        .eq(calling_user_id)
 160                        .and(room_participant::Column::RoomId.eq(room_id)),
 161                )
 162                .one(&*tx)
 163                .await?
 164                .context("user is not in the room")?;
 165
 166            let called_user_role = match caller.role.unwrap_or(ChannelRole::Member) {
 167                ChannelRole::Admin | ChannelRole::Member => ChannelRole::Member,
 168                ChannelRole::Guest | ChannelRole::Talker => ChannelRole::Guest,
 169                ChannelRole::Banned => return Err(anyhow!("banned users cannot invite").into()),
 170            };
 171
 172            room_participant::ActiveModel {
 173                room_id: ActiveValue::set(room_id),
 174                user_id: ActiveValue::set(called_user_id),
 175                answering_connection_lost: ActiveValue::set(false),
 176                participant_index: ActiveValue::NotSet,
 177                calling_user_id: ActiveValue::set(calling_user_id),
 178                calling_connection_id: ActiveValue::set(calling_connection.id as i32),
 179                calling_connection_server_id: ActiveValue::set(Some(ServerId(
 180                    calling_connection.owner_id as i32,
 181                ))),
 182                initial_project_id: ActiveValue::set(initial_project_id),
 183                role: ActiveValue::set(Some(called_user_role)),
 184
 185                id: ActiveValue::NotSet,
 186                answering_connection_id: ActiveValue::NotSet,
 187                answering_connection_server_id: ActiveValue::NotSet,
 188                location_kind: ActiveValue::NotSet,
 189                location_project_id: ActiveValue::NotSet,
 190            }
 191            .insert(&*tx)
 192            .await?;
 193
 194            let room = self.get_room(room_id, &tx).await?;
 195            let incoming_call = Self::build_incoming_call(&room, called_user_id)
 196                .context("failed to build incoming call")?;
 197            Ok((room, incoming_call))
 198        })
 199        .await
 200    }
 201
 202    pub async fn call_failed(
 203        &self,
 204        room_id: RoomId,
 205        called_user_id: UserId,
 206    ) -> Result<TransactionGuard<proto::Room>> {
 207        self.room_transaction(room_id, |tx| async move {
 208            room_participant::Entity::delete_many()
 209                .filter(
 210                    room_participant::Column::RoomId
 211                        .eq(room_id)
 212                        .and(room_participant::Column::UserId.eq(called_user_id)),
 213                )
 214                .exec(&*tx)
 215                .await?;
 216            let room = self.get_room(room_id, &tx).await?;
 217            Ok(room)
 218        })
 219        .await
 220    }
 221
 222    pub async fn decline_call(
 223        &self,
 224        expected_room_id: Option<RoomId>,
 225        user_id: UserId,
 226    ) -> Result<Option<TransactionGuard<proto::Room>>> {
 227        self.optional_room_transaction(|tx| async move {
 228            let mut filter = Condition::all()
 229                .add(room_participant::Column::UserId.eq(user_id))
 230                .add(room_participant::Column::AnsweringConnectionId.is_null());
 231            if let Some(room_id) = expected_room_id {
 232                filter = filter.add(room_participant::Column::RoomId.eq(room_id));
 233            }
 234            let participant = room_participant::Entity::find()
 235                .filter(filter)
 236                .one(&*tx)
 237                .await?;
 238
 239            let participant = if let Some(participant) = participant {
 240                participant
 241            } else if expected_room_id.is_some() {
 242                return Err(anyhow!("could not find call to decline"))?;
 243            } else {
 244                return Ok(None);
 245            };
 246
 247            let room_id = participant.room_id;
 248            room_participant::Entity::delete(participant.into_active_model())
 249                .exec(&*tx)
 250                .await?;
 251
 252            let room = self.get_room(room_id, &tx).await?;
 253            Ok(Some((room_id, room)))
 254        })
 255        .await
 256    }
 257
 258    pub async fn cancel_call(
 259        &self,
 260        room_id: RoomId,
 261        calling_connection: ConnectionId,
 262        called_user_id: UserId,
 263    ) -> Result<TransactionGuard<proto::Room>> {
 264        self.room_transaction(room_id, |tx| async move {
 265            let participant = room_participant::Entity::find()
 266                .filter(
 267                    Condition::all()
 268                        .add(room_participant::Column::UserId.eq(called_user_id))
 269                        .add(room_participant::Column::RoomId.eq(room_id))
 270                        .add(
 271                            room_participant::Column::CallingConnectionId
 272                                .eq(calling_connection.id as i32),
 273                        )
 274                        .add(
 275                            room_participant::Column::CallingConnectionServerId
 276                                .eq(calling_connection.owner_id as i32),
 277                        )
 278                        .add(room_participant::Column::AnsweringConnectionId.is_null()),
 279                )
 280                .one(&*tx)
 281                .await?
 282                .context("no call to cancel")?;
 283
 284            room_participant::Entity::delete(participant.into_active_model())
 285                .exec(&*tx)
 286                .await?;
 287
 288            let room = self.get_room(room_id, &tx).await?;
 289            Ok(room)
 290        })
 291        .await
 292    }
 293
 294    pub async fn join_room(
 295        &self,
 296        room_id: RoomId,
 297        user_id: UserId,
 298        connection: ConnectionId,
 299    ) -> Result<TransactionGuard<JoinRoom>> {
 300        self.room_transaction(room_id, |tx| async move {
 301            #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
 302            enum QueryChannelId {
 303                ChannelId,
 304            }
 305
 306            let channel_id: Option<ChannelId> = room::Entity::find()
 307                .select_only()
 308                .column(room::Column::ChannelId)
 309                .filter(room::Column::Id.eq(room_id))
 310                .into_values::<_, QueryChannelId>()
 311                .one(&*tx)
 312                .await?
 313                .context("no such room")?;
 314
 315            if channel_id.is_some() {
 316                Err(anyhow!("tried to join channel call directly"))?
 317            }
 318
 319            let participant_index = self
 320                .get_next_participant_index_internal(room_id, &tx)
 321                .await?;
 322
 323            let result = room_participant::Entity::update_many()
 324                .filter(
 325                    Condition::all()
 326                        .add(room_participant::Column::RoomId.eq(room_id))
 327                        .add(room_participant::Column::UserId.eq(user_id))
 328                        .add(room_participant::Column::AnsweringConnectionId.is_null()),
 329                )
 330                .set(room_participant::ActiveModel {
 331                    participant_index: ActiveValue::Set(Some(participant_index)),
 332                    answering_connection_id: ActiveValue::set(Some(connection.id as i32)),
 333                    answering_connection_server_id: ActiveValue::set(Some(ServerId(
 334                        connection.owner_id as i32,
 335                    ))),
 336                    answering_connection_lost: ActiveValue::set(false),
 337                    ..Default::default()
 338                })
 339                .exec(&*tx)
 340                .await?;
 341            if result.rows_affected == 0 {
 342                Err(anyhow!("room does not exist or was already joined"))?;
 343            }
 344
 345            let room = self.get_room(room_id, &tx).await?;
 346            Ok(JoinRoom {
 347                room,
 348                channel: None,
 349            })
 350        })
 351        .await
 352    }
 353
 354    pub async fn stale_room_connection(&self, user_id: UserId) -> Result<Option<ConnectionId>> {
 355        self.transaction(|tx| async move {
 356            let participant = room_participant::Entity::find()
 357                .filter(room_participant::Column::UserId.eq(user_id))
 358                .one(&*tx)
 359                .await?;
 360            Ok(participant.and_then(|p| p.answering_connection()))
 361        })
 362        .await
 363    }
 364
 365    async fn get_next_participant_index_internal(
 366        &self,
 367        room_id: RoomId,
 368        tx: &DatabaseTransaction,
 369    ) -> Result<i32> {
 370        #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
 371        enum QueryParticipantIndices {
 372            ParticipantIndex,
 373        }
 374        let existing_participant_indices: Vec<i32> = room_participant::Entity::find()
 375            .filter(
 376                room_participant::Column::RoomId
 377                    .eq(room_id)
 378                    .and(room_participant::Column::ParticipantIndex.is_not_null()),
 379            )
 380            .select_only()
 381            .column(room_participant::Column::ParticipantIndex)
 382            .into_values::<_, QueryParticipantIndices>()
 383            .all(tx)
 384            .await?;
 385
 386        let mut participant_index = 0;
 387        while existing_participant_indices.contains(&participant_index) {
 388            participant_index += 1;
 389        }
 390
 391        Ok(participant_index)
 392    }
 393
 394    /// Returns the channel ID for the given room, if it has one.
 395    pub async fn channel_id_for_room(&self, room_id: RoomId) -> Result<Option<ChannelId>> {
 396        self.transaction(|tx| async move {
 397            let room: Option<room::Model> = room::Entity::find()
 398                .filter(room::Column::Id.eq(room_id))
 399                .one(&*tx)
 400                .await?;
 401
 402            Ok(room.and_then(|room| room.channel_id))
 403        })
 404        .await
 405    }
 406
 407    pub(crate) async fn join_channel_room_internal(
 408        &self,
 409        room_id: RoomId,
 410        user_id: UserId,
 411        connection: ConnectionId,
 412        role: ChannelRole,
 413        tx: &DatabaseTransaction,
 414    ) -> Result<JoinRoom> {
 415        let participant_index = self
 416            .get_next_participant_index_internal(room_id, tx)
 417            .await?;
 418
 419        // If someone has been invited into the room, accept the invite instead of inserting
 420        let result = room_participant::Entity::update_many()
 421            .filter(
 422                Condition::all()
 423                    .add(room_participant::Column::RoomId.eq(room_id))
 424                    .add(room_participant::Column::UserId.eq(user_id))
 425                    .add(room_participant::Column::AnsweringConnectionId.is_null()),
 426            )
 427            .set(room_participant::ActiveModel {
 428                participant_index: ActiveValue::Set(Some(participant_index)),
 429                answering_connection_id: ActiveValue::set(Some(connection.id as i32)),
 430                answering_connection_server_id: ActiveValue::set(Some(ServerId(
 431                    connection.owner_id as i32,
 432                ))),
 433                answering_connection_lost: ActiveValue::set(false),
 434                ..Default::default()
 435            })
 436            .exec(tx)
 437            .await?;
 438
 439        if result.rows_affected == 0 {
 440            room_participant::Entity::insert(room_participant::ActiveModel {
 441                room_id: ActiveValue::set(room_id),
 442                user_id: ActiveValue::set(user_id),
 443                answering_connection_id: ActiveValue::set(Some(connection.id as i32)),
 444                answering_connection_server_id: ActiveValue::set(Some(ServerId(
 445                    connection.owner_id as i32,
 446                ))),
 447                answering_connection_lost: ActiveValue::set(false),
 448                calling_user_id: ActiveValue::set(user_id),
 449                calling_connection_id: ActiveValue::set(connection.id as i32),
 450                calling_connection_server_id: ActiveValue::set(Some(ServerId(
 451                    connection.owner_id as i32,
 452                ))),
 453                participant_index: ActiveValue::Set(Some(participant_index)),
 454                role: ActiveValue::set(Some(role)),
 455                id: ActiveValue::NotSet,
 456                location_kind: ActiveValue::NotSet,
 457                location_project_id: ActiveValue::NotSet,
 458                initial_project_id: ActiveValue::NotSet,
 459            })
 460            .exec(tx)
 461            .await?;
 462        }
 463
 464        let (channel, room) = self.get_channel_room(room_id, tx).await?;
 465        let channel = channel.context("no channel for room")?;
 466        Ok(JoinRoom {
 467            room,
 468            channel: Some(channel),
 469        })
 470    }
 471
 472    pub async fn rejoin_room(
 473        &self,
 474        rejoin_room: proto::RejoinRoom,
 475        user_id: UserId,
 476        connection: ConnectionId,
 477    ) -> Result<TransactionGuard<RejoinedRoom>> {
 478        let room_id = RoomId::from_proto(rejoin_room.id);
 479        self.room_transaction(room_id, |tx| async {
 480            let tx = tx;
 481            let participant_update = room_participant::Entity::update_many()
 482                .filter(
 483                    Condition::all()
 484                        .add(room_participant::Column::RoomId.eq(room_id))
 485                        .add(room_participant::Column::UserId.eq(user_id))
 486                        .add(room_participant::Column::AnsweringConnectionId.is_not_null()),
 487                )
 488                .set(room_participant::ActiveModel {
 489                    answering_connection_id: ActiveValue::set(Some(connection.id as i32)),
 490                    answering_connection_server_id: ActiveValue::set(Some(ServerId(
 491                        connection.owner_id as i32,
 492                    ))),
 493                    answering_connection_lost: ActiveValue::set(false),
 494                    ..Default::default()
 495                })
 496                .exec(&*tx)
 497                .await?;
 498            if participant_update.rows_affected == 0 {
 499                return Err(anyhow!("room does not exist or was already joined"))?;
 500            }
 501
 502            let mut reshared_projects = Vec::new();
 503            for reshared_project in &rejoin_room.reshared_projects {
 504                let project_id = ProjectId::from_proto(reshared_project.project_id);
 505                let project = project::Entity::find_by_id(project_id)
 506                    .one(&*tx)
 507                    .await?
 508                    .context("project does not exist")?;
 509                if project.host_user_id != Some(user_id) {
 510                    return Err(anyhow!("no such project"))?;
 511                }
 512
 513                let mut collaborators = project
 514                    .find_related(project_collaborator::Entity)
 515                    .all(&*tx)
 516                    .await?;
 517                let host_ix = collaborators
 518                    .iter()
 519                    .position(|collaborator| {
 520                        collaborator.user_id == user_id && collaborator.is_host
 521                    })
 522                    .context("host not found among collaborators")?;
 523                let host = collaborators.swap_remove(host_ix);
 524                let old_connection_id = host.connection();
 525
 526                project::Entity::update(project::ActiveModel {
 527                    host_connection_id: ActiveValue::set(Some(connection.id as i32)),
 528                    host_connection_server_id: ActiveValue::set(Some(ServerId(
 529                        connection.owner_id as i32,
 530                    ))),
 531                    ..project.into_active_model()
 532                })
 533                .exec(&*tx)
 534                .await?;
 535                project_collaborator::Entity::update(project_collaborator::ActiveModel {
 536                    connection_id: ActiveValue::set(connection.id as i32),
 537                    connection_server_id: ActiveValue::set(ServerId(connection.owner_id as i32)),
 538                    ..host.into_active_model()
 539                })
 540                .exec(&*tx)
 541                .await?;
 542
 543                self.update_project_worktrees(project_id, &reshared_project.worktrees, &tx)
 544                    .await?;
 545
 546                reshared_projects.push(ResharedProject {
 547                    id: project_id,
 548                    old_connection_id,
 549                    collaborators: collaborators
 550                        .iter()
 551                        .map(|collaborator| ProjectCollaborator {
 552                            connection_id: collaborator.connection(),
 553                            user_id: collaborator.user_id,
 554                            replica_id: collaborator.replica_id,
 555                            is_host: collaborator.is_host,
 556                            committer_name: collaborator.committer_name.clone(),
 557                            committer_email: collaborator.committer_email.clone(),
 558                        })
 559                        .collect(),
 560                    worktrees: reshared_project.worktrees.clone(),
 561                });
 562            }
 563
 564            project::Entity::delete_many()
 565                .filter(
 566                    Condition::all()
 567                        .add(project::Column::RoomId.eq(room_id))
 568                        .add(project::Column::HostUserId.eq(user_id))
 569                        .add(
 570                            project::Column::Id
 571                                .is_not_in(reshared_projects.iter().map(|project| project.id)),
 572                        ),
 573                )
 574                .exec(&*tx)
 575                .await?;
 576
 577            let mut rejoined_projects = Vec::new();
 578            for rejoined_project in &rejoin_room.rejoined_projects {
 579                if let Some(rejoined_project) = self
 580                    .rejoin_project_internal(&tx, rejoined_project, user_id, connection)
 581                    .await?
 582                {
 583                    rejoined_projects.push(rejoined_project);
 584                }
 585            }
 586
 587            let (channel, room) = self.get_channel_room(room_id, &tx).await?;
 588
 589            Ok(RejoinedRoom {
 590                room,
 591                channel,
 592                rejoined_projects,
 593                reshared_projects,
 594            })
 595        })
 596        .await
 597    }
 598
 599    pub async fn rejoin_project_internal(
 600        &self,
 601        tx: &DatabaseTransaction,
 602        rejoined_project: &proto::RejoinProject,
 603        user_id: UserId,
 604        connection: ConnectionId,
 605    ) -> Result<Option<RejoinedProject>> {
 606        let project_id = ProjectId::from_proto(rejoined_project.id);
 607        let Some(project) = project::Entity::find_by_id(project_id).one(tx).await? else {
 608            return Ok(None);
 609        };
 610
 611        let mut worktrees = Vec::new();
 612        let db_worktrees = project.find_related(worktree::Entity).all(tx).await?;
 613        let db_repos = project
 614            .find_related(project_repository::Entity)
 615            .all(tx)
 616            .await?;
 617
 618        for db_worktree in db_worktrees {
 619            let mut worktree = RejoinedWorktree {
 620                id: db_worktree.id as u64,
 621                abs_path: db_worktree.abs_path,
 622                root_name: db_worktree.root_name,
 623                visible: db_worktree.visible,
 624                updated_entries: Default::default(),
 625                removed_entries: Default::default(),
 626                updated_repositories: Default::default(),
 627                removed_repositories: Default::default(),
 628                diagnostic_summaries: Default::default(),
 629                settings_files: Default::default(),
 630                scan_id: db_worktree.scan_id as u64,
 631                completed_scan_id: db_worktree.completed_scan_id as u64,
 632            };
 633
 634            let rejoined_worktree = rejoined_project
 635                .worktrees
 636                .iter()
 637                .find(|worktree| worktree.id == db_worktree.id as u64);
 638
 639            // File entries
 640            {
 641                let entry_filter = if let Some(rejoined_worktree) = rejoined_worktree {
 642                    worktree_entry::Column::ScanId.gt(rejoined_worktree.scan_id)
 643                } else {
 644                    worktree_entry::Column::IsDeleted.eq(false)
 645                };
 646
 647                let mut db_entries = worktree_entry::Entity::find()
 648                    .filter(
 649                        Condition::all()
 650                            .add(worktree_entry::Column::ProjectId.eq(project.id))
 651                            .add(worktree_entry::Column::WorktreeId.eq(worktree.id))
 652                            .add(entry_filter),
 653                    )
 654                    .stream(tx)
 655                    .await?;
 656
 657                while let Some(db_entry) = db_entries.next().await {
 658                    let db_entry = db_entry?;
 659                    if db_entry.is_deleted {
 660                        worktree.removed_entries.push(db_entry.id as u64);
 661                    } else {
 662                        worktree.updated_entries.push(proto::Entry {
 663                            id: db_entry.id as u64,
 664                            is_dir: db_entry.is_dir,
 665                            path: db_entry.path,
 666                            inode: db_entry.inode as u64,
 667                            mtime: Some(proto::Timestamp {
 668                                seconds: db_entry.mtime_seconds as u64,
 669                                nanos: db_entry.mtime_nanos as u32,
 670                            }),
 671                            canonical_path: db_entry.canonical_path,
 672                            is_ignored: db_entry.is_ignored,
 673                            is_external: db_entry.is_external,
 674                            // This is only used in the summarization backlog, so if it's None,
 675                            // that just means we won't be able to detect when to resummarize
 676                            // based on total number of backlogged bytes - instead, we'd go
 677                            // on number of files only. That shouldn't be a huge deal in practice.
 678                            size: None,
 679                            is_fifo: db_entry.is_fifo,
 680                        });
 681                    }
 682                }
 683            }
 684
 685            worktrees.push(worktree);
 686        }
 687
 688        let mut removed_repositories = Vec::new();
 689        let mut updated_repositories = Vec::new();
 690        for db_repo in db_repos {
 691            let rejoined_repository = rejoined_project
 692                .repositories
 693                .iter()
 694                .find(|repo| repo.id == db_repo.id as u64);
 695
 696            let repository_filter = if let Some(rejoined_repository) = rejoined_repository {
 697                project_repository::Column::ScanId.gt(rejoined_repository.scan_id)
 698            } else {
 699                project_repository::Column::IsDeleted.eq(false)
 700            };
 701
 702            let db_repositories = project_repository::Entity::find()
 703                .filter(
 704                    Condition::all()
 705                        .add(project_repository::Column::ProjectId.eq(project.id))
 706                        .add(repository_filter),
 707                )
 708                .all(tx)
 709                .await?;
 710
 711            for db_repository in db_repositories.into_iter() {
 712                if db_repository.is_deleted {
 713                    removed_repositories.push(db_repository.id as u64);
 714                } else {
 715                    let status_entry_filter = if let Some(rejoined_repository) = rejoined_repository
 716                    {
 717                        project_repository_statuses::Column::ScanId.gt(rejoined_repository.scan_id)
 718                    } else {
 719                        project_repository_statuses::Column::IsDeleted.eq(false)
 720                    };
 721
 722                    let mut db_statuses = project_repository_statuses::Entity::find()
 723                        .filter(
 724                            Condition::all()
 725                                .add(project_repository_statuses::Column::ProjectId.eq(project.id))
 726                                .add(
 727                                    project_repository_statuses::Column::RepositoryId
 728                                        .eq(db_repository.id),
 729                                )
 730                                .add(status_entry_filter),
 731                        )
 732                        .stream(tx)
 733                        .await?;
 734                    let mut removed_statuses = Vec::new();
 735                    let mut updated_statuses = Vec::new();
 736
 737                    while let Some(db_status) = db_statuses.next().await {
 738                        let db_status: project_repository_statuses::Model = db_status?;
 739                        if db_status.is_deleted {
 740                            removed_statuses.push(db_status.repo_path);
 741                        } else {
 742                            updated_statuses.push(db_status_to_proto(db_status)?);
 743                        }
 744                    }
 745
 746                    let current_merge_conflicts = db_repository
 747                        .current_merge_conflicts
 748                        .as_ref()
 749                        .map(|conflicts| serde_json::from_str(conflicts))
 750                        .transpose()?
 751                        .unwrap_or_default();
 752
 753                    let branch_summary = db_repository
 754                        .branch_summary
 755                        .as_ref()
 756                        .map(|branch_summary| serde_json::from_str(branch_summary))
 757                        .transpose()?
 758                        .unwrap_or_default();
 759
 760                    let head_commit_details = db_repository
 761                        .head_commit_details
 762                        .as_ref()
 763                        .map(|head_commit_details| serde_json::from_str(head_commit_details))
 764                        .transpose()?
 765                        .unwrap_or_default();
 766
 767                    let entry_ids = serde_json::from_str(&db_repository.entry_ids)
 768                        .context("failed to deserialize repository's entry ids")?;
 769
 770                    if let Some(legacy_worktree_id) = db_repository.legacy_worktree_id {
 771                        if let Some(worktree) = worktrees
 772                            .iter_mut()
 773                            .find(|worktree| worktree.id as i64 == legacy_worktree_id)
 774                        {
 775                            worktree.updated_repositories.push(proto::RepositoryEntry {
 776                                repository_id: db_repository.id as u64,
 777                                updated_statuses,
 778                                removed_statuses,
 779                                current_merge_conflicts,
 780                                branch_summary,
 781                            });
 782                        }
 783                    } else {
 784                        updated_repositories.push(proto::UpdateRepository {
 785                            entry_ids,
 786                            updated_statuses,
 787                            removed_statuses,
 788                            current_merge_conflicts,
 789                            branch_summary,
 790                            head_commit_details,
 791                            project_id: project_id.to_proto(),
 792                            id: db_repository.id as u64,
 793                            abs_path: db_repository.abs_path,
 794                            scan_id: db_repository.scan_id as u64,
 795                            is_last_update: true,
 796                            merge_message: db_repository.merge_message,
 797                        });
 798                    }
 799                }
 800            }
 801        }
 802
 803        let language_servers = project
 804            .find_related(language_server::Entity)
 805            .all(tx)
 806            .await?
 807            .into_iter()
 808            .map(|language_server| LanguageServer {
 809                server: proto::LanguageServer {
 810                    id: language_server.id as u64,
 811                    name: language_server.name,
 812                    worktree_id: language_server.worktree_id.map(|id| id as u64),
 813                },
 814                capabilities: language_server.capabilities,
 815            })
 816            .collect::<Vec<_>>();
 817
 818        {
 819            let mut db_settings_files = worktree_settings_file::Entity::find()
 820                .filter(worktree_settings_file::Column::ProjectId.eq(project_id))
 821                .stream(tx)
 822                .await?;
 823            while let Some(db_settings_file) = db_settings_files.next().await {
 824                let db_settings_file = db_settings_file?;
 825                if let Some(worktree) = worktrees
 826                    .iter_mut()
 827                    .find(|w| w.id == db_settings_file.worktree_id as u64)
 828                {
 829                    worktree.settings_files.push(WorktreeSettingsFile {
 830                        path: db_settings_file.path,
 831                        content: db_settings_file.content,
 832                        kind: db_settings_file.kind,
 833                    });
 834                }
 835            }
 836        }
 837
 838        let mut collaborators = project
 839            .find_related(project_collaborator::Entity)
 840            .all(tx)
 841            .await?;
 842        let self_collaborator = if let Some(self_collaborator_ix) = collaborators
 843            .iter()
 844            .position(|collaborator| collaborator.user_id == user_id)
 845        {
 846            collaborators.swap_remove(self_collaborator_ix)
 847        } else {
 848            return Ok(None);
 849        };
 850        let old_connection_id = self_collaborator.connection();
 851        project_collaborator::Entity::update(project_collaborator::ActiveModel {
 852            connection_id: ActiveValue::set(connection.id as i32),
 853            connection_server_id: ActiveValue::set(ServerId(connection.owner_id as i32)),
 854            ..self_collaborator.into_active_model()
 855        })
 856        .exec(tx)
 857        .await?;
 858
 859        let collaborators = collaborators
 860            .into_iter()
 861            .map(|collaborator| ProjectCollaborator {
 862                connection_id: collaborator.connection(),
 863                user_id: collaborator.user_id,
 864                replica_id: collaborator.replica_id,
 865                is_host: collaborator.is_host,
 866                committer_name: collaborator.committer_name,
 867                committer_email: collaborator.committer_email,
 868            })
 869            .collect::<Vec<_>>();
 870
 871        Ok(Some(RejoinedProject {
 872            id: project_id,
 873            old_connection_id,
 874            collaborators,
 875            updated_repositories,
 876            removed_repositories,
 877            worktrees,
 878            language_servers,
 879        }))
 880    }
 881
 882    pub async fn leave_room(
 883        &self,
 884        connection: ConnectionId,
 885    ) -> Result<Option<TransactionGuard<LeftRoom>>> {
 886        self.optional_room_transaction(|tx| async move {
 887            let leaving_participant = room_participant::Entity::find()
 888                .filter(
 889                    Condition::all()
 890                        .add(
 891                            room_participant::Column::AnsweringConnectionId
 892                                .eq(connection.id as i32),
 893                        )
 894                        .add(
 895                            room_participant::Column::AnsweringConnectionServerId
 896                                .eq(connection.owner_id as i32),
 897                        ),
 898                )
 899                .one(&*tx)
 900                .await?;
 901
 902            if let Some(leaving_participant) = leaving_participant {
 903                // Leave room.
 904                let room_id = leaving_participant.room_id;
 905                room_participant::Entity::delete_by_id(leaving_participant.id)
 906                    .exec(&*tx)
 907                    .await?;
 908
 909                // Cancel pending calls initiated by the leaving user.
 910                let called_participants = room_participant::Entity::find()
 911                    .filter(
 912                        Condition::all()
 913                            .add(
 914                                room_participant::Column::CallingUserId
 915                                    .eq(leaving_participant.user_id),
 916                            )
 917                            .add(room_participant::Column::AnsweringConnectionId.is_null()),
 918                    )
 919                    .all(&*tx)
 920                    .await?;
 921                room_participant::Entity::delete_many()
 922                    .filter(
 923                        room_participant::Column::Id
 924                            .is_in(called_participants.iter().map(|participant| participant.id)),
 925                    )
 926                    .exec(&*tx)
 927                    .await?;
 928                let canceled_calls_to_user_ids = called_participants
 929                    .into_iter()
 930                    .map(|participant| participant.user_id)
 931                    .collect();
 932
 933                // Detect left projects.
 934                #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
 935                enum QueryProjectIds {
 936                    ProjectId,
 937                }
 938                let project_ids: Vec<ProjectId> = project_collaborator::Entity::find()
 939                    .select_only()
 940                    .column_as(
 941                        project_collaborator::Column::ProjectId,
 942                        QueryProjectIds::ProjectId,
 943                    )
 944                    .filter(
 945                        Condition::all()
 946                            .add(
 947                                project_collaborator::Column::ConnectionId.eq(connection.id as i32),
 948                            )
 949                            .add(
 950                                project_collaborator::Column::ConnectionServerId
 951                                    .eq(connection.owner_id as i32),
 952                            ),
 953                    )
 954                    .into_values::<_, QueryProjectIds>()
 955                    .all(&*tx)
 956                    .await?;
 957
 958                let mut left_projects = HashMap::default();
 959                let mut collaborators = project_collaborator::Entity::find()
 960                    .filter(project_collaborator::Column::ProjectId.is_in(project_ids))
 961                    .stream(&*tx)
 962                    .await?;
 963
 964                while let Some(collaborator) = collaborators.next().await {
 965                    let collaborator = collaborator?;
 966                    let left_project =
 967                        left_projects
 968                            .entry(collaborator.project_id)
 969                            .or_insert(LeftProject {
 970                                id: collaborator.project_id,
 971                                connection_ids: Default::default(),
 972                                should_unshare: false,
 973                            });
 974
 975                    let collaborator_connection_id = collaborator.connection();
 976                    if collaborator_connection_id != connection {
 977                        left_project.connection_ids.push(collaborator_connection_id);
 978                    }
 979
 980                    if collaborator.is_host && collaborator.connection() == connection {
 981                        left_project.should_unshare = true;
 982                    }
 983                }
 984                drop(collaborators);
 985
 986                // Leave projects.
 987                project_collaborator::Entity::delete_many()
 988                    .filter(
 989                        Condition::all()
 990                            .add(
 991                                project_collaborator::Column::ConnectionId.eq(connection.id as i32),
 992                            )
 993                            .add(
 994                                project_collaborator::Column::ConnectionServerId
 995                                    .eq(connection.owner_id as i32),
 996                            ),
 997                    )
 998                    .exec(&*tx)
 999                    .await?;
1000
1001                follower::Entity::delete_many()
1002                    .filter(
1003                        Condition::all()
1004                            .add(follower::Column::FollowerConnectionId.eq(connection.id as i32)),
1005                    )
1006                    .exec(&*tx)
1007                    .await?;
1008
1009                // Unshare projects.
1010                project::Entity::delete_many()
1011                    .filter(
1012                        Condition::all()
1013                            .add(project::Column::RoomId.eq(room_id))
1014                            .add(project::Column::HostConnectionId.eq(connection.id as i32))
1015                            .add(
1016                                project::Column::HostConnectionServerId
1017                                    .eq(connection.owner_id as i32),
1018                            ),
1019                    )
1020                    .exec(&*tx)
1021                    .await?;
1022
1023                let (channel, room) = self.get_channel_room(room_id, &tx).await?;
1024                let deleted = if room.participants.is_empty() {
1025                    let result = room::Entity::delete_by_id(room_id).exec(&*tx).await?;
1026                    result.rows_affected > 0
1027                } else {
1028                    false
1029                };
1030
1031                let left_room = LeftRoom {
1032                    room,
1033                    channel,
1034                    left_projects,
1035                    canceled_calls_to_user_ids,
1036                    deleted,
1037                };
1038
1039                if left_room.room.participants.is_empty() {
1040                    self.rooms.remove(&room_id);
1041                }
1042
1043                Ok(Some((room_id, left_room)))
1044            } else {
1045                Ok(None)
1046            }
1047        })
1048        .await
1049    }
1050
1051    /// Updates the location of a participant in the given room.
1052    pub async fn update_room_participant_location(
1053        &self,
1054        room_id: RoomId,
1055        connection: ConnectionId,
1056        location: proto::ParticipantLocation,
1057    ) -> Result<TransactionGuard<proto::Room>> {
1058        self.room_transaction(room_id, |tx| async {
1059            let tx = tx;
1060            let location_kind;
1061            let location_project_id;
1062            match location.variant.as_ref().context("invalid location")? {
1063                proto::participant_location::Variant::SharedProject(project) => {
1064                    location_kind = 0;
1065                    location_project_id = Some(ProjectId::from_proto(project.id));
1066                }
1067                proto::participant_location::Variant::UnsharedProject(_) => {
1068                    location_kind = 1;
1069                    location_project_id = None;
1070                }
1071                proto::participant_location::Variant::External(_) => {
1072                    location_kind = 2;
1073                    location_project_id = None;
1074                }
1075            }
1076
1077            let result = room_participant::Entity::update_many()
1078                .filter(
1079                    Condition::all()
1080                        .add(room_participant::Column::RoomId.eq(room_id))
1081                        .add(
1082                            room_participant::Column::AnsweringConnectionId
1083                                .eq(connection.id as i32),
1084                        )
1085                        .add(
1086                            room_participant::Column::AnsweringConnectionServerId
1087                                .eq(connection.owner_id as i32),
1088                        ),
1089                )
1090                .set(room_participant::ActiveModel {
1091                    location_kind: ActiveValue::set(Some(location_kind)),
1092                    location_project_id: ActiveValue::set(location_project_id),
1093                    ..Default::default()
1094                })
1095                .exec(&*tx)
1096                .await?;
1097
1098            if result.rows_affected == 1 {
1099                let room = self.get_room(room_id, &tx).await?;
1100                Ok(room)
1101            } else {
1102                Err(anyhow!("could not update room participant location"))?
1103            }
1104        })
1105        .await
1106    }
1107
1108    /// Sets the role of a participant in the given room.
1109    pub async fn set_room_participant_role(
1110        &self,
1111        admin_id: UserId,
1112        room_id: RoomId,
1113        user_id: UserId,
1114        role: ChannelRole,
1115    ) -> Result<TransactionGuard<proto::Room>> {
1116        self.room_transaction(room_id, |tx| async move {
1117            room_participant::Entity::find()
1118                .filter(
1119                    Condition::all()
1120                        .add(room_participant::Column::RoomId.eq(room_id))
1121                        .add(room_participant::Column::UserId.eq(admin_id))
1122                        .add(room_participant::Column::Role.eq(ChannelRole::Admin)),
1123                )
1124                .one(&*tx)
1125                .await?
1126                .context("only admins can set participant role")?;
1127
1128            if role.requires_cla() {
1129                self.check_user_has_signed_cla(user_id, room_id, &tx)
1130                    .await?;
1131            }
1132
1133            let result = room_participant::Entity::update_many()
1134                .filter(
1135                    Condition::all()
1136                        .add(room_participant::Column::RoomId.eq(room_id))
1137                        .add(room_participant::Column::UserId.eq(user_id)),
1138                )
1139                .set(room_participant::ActiveModel {
1140                    role: ActiveValue::set(Some(role)),
1141                    ..Default::default()
1142                })
1143                .exec(&*tx)
1144                .await?;
1145
1146            if result.rows_affected != 1 {
1147                Err(anyhow!("could not update room participant role"))?;
1148            }
1149            self.get_room(room_id, &tx).await
1150        })
1151        .await
1152    }
1153
1154    async fn check_user_has_signed_cla(
1155        &self,
1156        user_id: UserId,
1157        room_id: RoomId,
1158        tx: &DatabaseTransaction,
1159    ) -> Result<()> {
1160        let channel = room::Entity::find_by_id(room_id)
1161            .one(tx)
1162            .await?
1163            .context("could not find room")?
1164            .find_related(channel::Entity)
1165            .one(tx)
1166            .await?;
1167
1168        if let Some(channel) = channel {
1169            let requires_zed_cla = channel.requires_zed_cla
1170                || channel::Entity::find()
1171                    .filter(
1172                        channel::Column::Id
1173                            .is_in(channel.ancestors())
1174                            .and(channel::Column::RequiresZedCla.eq(true)),
1175                    )
1176                    .count(tx)
1177                    .await?
1178                    > 0;
1179            if requires_zed_cla
1180                && contributor::Entity::find()
1181                    .filter(contributor::Column::UserId.eq(user_id))
1182                    .one(tx)
1183                    .await?
1184                    .is_none()
1185            {
1186                Err(anyhow!("user has not signed the Zed CLA"))?;
1187            }
1188        }
1189        Ok(())
1190    }
1191
1192    pub async fn connection_lost(&self, connection: ConnectionId) -> Result<()> {
1193        self.transaction(|tx| async move {
1194            self.room_connection_lost(connection, &tx).await?;
1195            self.channel_buffer_connection_lost(connection, &tx).await?;
1196            Ok(())
1197        })
1198        .await
1199    }
1200
1201    pub async fn room_connection_lost(
1202        &self,
1203        connection: ConnectionId,
1204        tx: &DatabaseTransaction,
1205    ) -> Result<()> {
1206        let participant = room_participant::Entity::find()
1207            .filter(
1208                Condition::all()
1209                    .add(room_participant::Column::AnsweringConnectionId.eq(connection.id as i32))
1210                    .add(
1211                        room_participant::Column::AnsweringConnectionServerId
1212                            .eq(connection.owner_id as i32),
1213                    ),
1214            )
1215            .one(tx)
1216            .await?;
1217
1218        if let Some(participant) = participant {
1219            room_participant::Entity::update(room_participant::ActiveModel {
1220                answering_connection_lost: ActiveValue::set(true),
1221                ..participant.into_active_model()
1222            })
1223            .exec(tx)
1224            .await?;
1225        }
1226        Ok(())
1227    }
1228
1229    fn build_incoming_call(
1230        room: &proto::Room,
1231        called_user_id: UserId,
1232    ) -> Option<proto::IncomingCall> {
1233        let pending_participant = room
1234            .pending_participants
1235            .iter()
1236            .find(|participant| participant.user_id == called_user_id.to_proto())?;
1237
1238        Some(proto::IncomingCall {
1239            room_id: room.id,
1240            calling_user_id: pending_participant.calling_user_id,
1241            participant_user_ids: room
1242                .participants
1243                .iter()
1244                .map(|participant| participant.user_id)
1245                .collect(),
1246            initial_project: room.participants.iter().find_map(|participant| {
1247                let initial_project_id = pending_participant.initial_project_id?;
1248                participant
1249                    .projects
1250                    .iter()
1251                    .find(|project| project.id == initial_project_id)
1252                    .cloned()
1253            }),
1254        })
1255    }
1256
1257    pub async fn get_room(&self, room_id: RoomId, tx: &DatabaseTransaction) -> Result<proto::Room> {
1258        let (_, room) = self.get_channel_room(room_id, tx).await?;
1259        Ok(room)
1260    }
1261
1262    pub async fn room_connection_ids(
1263        &self,
1264        room_id: RoomId,
1265        connection_id: ConnectionId,
1266    ) -> Result<TransactionGuard<HashSet<ConnectionId>>> {
1267        self.room_transaction(room_id, |tx| async move {
1268            let mut participants = room_participant::Entity::find()
1269                .filter(room_participant::Column::RoomId.eq(room_id))
1270                .stream(&*tx)
1271                .await?;
1272
1273            let mut is_participant = false;
1274            let mut connection_ids = HashSet::default();
1275            while let Some(participant) = participants.next().await {
1276                let participant = participant?;
1277                if let Some(answering_connection) = participant.answering_connection() {
1278                    if answering_connection == connection_id {
1279                        is_participant = true;
1280                    } else {
1281                        connection_ids.insert(answering_connection);
1282                    }
1283                }
1284            }
1285
1286            if !is_participant {
1287                Err(anyhow!("not a room participant"))?;
1288            }
1289
1290            Ok(connection_ids)
1291        })
1292        .await
1293    }
1294
1295    async fn get_channel_room(
1296        &self,
1297        room_id: RoomId,
1298        tx: &DatabaseTransaction,
1299    ) -> Result<(Option<channel::Model>, proto::Room)> {
1300        let db_room = room::Entity::find_by_id(room_id)
1301            .one(tx)
1302            .await?
1303            .context("could not find room")?;
1304
1305        let mut db_participants = db_room
1306            .find_related(room_participant::Entity)
1307            .stream(tx)
1308            .await?;
1309        let mut participants = HashMap::default();
1310        let mut pending_participants = Vec::new();
1311        while let Some(db_participant) = db_participants.next().await {
1312            let db_participant = db_participant?;
1313            if let (
1314                Some(answering_connection_id),
1315                Some(answering_connection_server_id),
1316                Some(participant_index),
1317            ) = (
1318                db_participant.answering_connection_id,
1319                db_participant.answering_connection_server_id,
1320                db_participant.participant_index,
1321            ) {
1322                let location = match (
1323                    db_participant.location_kind,
1324                    db_participant.location_project_id,
1325                ) {
1326                    (Some(0), Some(project_id)) => {
1327                        Some(proto::participant_location::Variant::SharedProject(
1328                            proto::participant_location::SharedProject {
1329                                id: project_id.to_proto(),
1330                            },
1331                        ))
1332                    }
1333                    (Some(1), _) => Some(proto::participant_location::Variant::UnsharedProject(
1334                        Default::default(),
1335                    )),
1336                    _ => Some(proto::participant_location::Variant::External(
1337                        Default::default(),
1338                    )),
1339                };
1340
1341                let answering_connection = ConnectionId {
1342                    owner_id: answering_connection_server_id.0 as u32,
1343                    id: answering_connection_id as u32,
1344                };
1345                participants.insert(
1346                    answering_connection,
1347                    proto::Participant {
1348                        user_id: db_participant.user_id.to_proto(),
1349                        peer_id: Some(answering_connection.into()),
1350                        projects: Default::default(),
1351                        location: Some(proto::ParticipantLocation { variant: location }),
1352                        participant_index: participant_index as u32,
1353                        role: db_participant.role.unwrap_or(ChannelRole::Member).into(),
1354                    },
1355                );
1356            } else {
1357                pending_participants.push(proto::PendingParticipant {
1358                    user_id: db_participant.user_id.to_proto(),
1359                    calling_user_id: db_participant.calling_user_id.to_proto(),
1360                    initial_project_id: db_participant.initial_project_id.map(|id| id.to_proto()),
1361                });
1362            }
1363        }
1364        drop(db_participants);
1365
1366        let db_projects = db_room
1367            .find_related(project::Entity)
1368            .find_with_related(worktree::Entity)
1369            .all(tx)
1370            .await?;
1371
1372        for (db_project, db_worktrees) in db_projects {
1373            let host_connection = db_project.host_connection()?;
1374            if let Some(participant) = participants.get_mut(&host_connection) {
1375                participant.projects.push(proto::ParticipantProject {
1376                    id: db_project.id.to_proto(),
1377                    worktree_root_names: Default::default(),
1378                });
1379                let project = participant.projects.last_mut().unwrap();
1380
1381                for db_worktree in db_worktrees {
1382                    if db_worktree.visible {
1383                        project.worktree_root_names.push(db_worktree.root_name);
1384                    }
1385                }
1386            }
1387        }
1388
1389        let mut db_followers = db_room.find_related(follower::Entity).stream(tx).await?;
1390        let mut followers = Vec::new();
1391        while let Some(db_follower) = db_followers.next().await {
1392            let db_follower = db_follower?;
1393            followers.push(proto::Follower {
1394                leader_id: Some(db_follower.leader_connection().into()),
1395                follower_id: Some(db_follower.follower_connection().into()),
1396                project_id: db_follower.project_id.to_proto(),
1397            });
1398        }
1399        drop(db_followers);
1400
1401        let channel = if let Some(channel_id) = db_room.channel_id {
1402            Some(self.get_channel_internal(channel_id, tx).await?)
1403        } else {
1404            None
1405        };
1406
1407        Ok((
1408            channel,
1409            proto::Room {
1410                id: db_room.id.to_proto(),
1411                livekit_room: db_room.live_kit_room,
1412                participants: participants.into_values().collect(),
1413                pending_participants,
1414                followers,
1415            },
1416        ))
1417    }
1418}