db.rs

   1mod access_token;
   2mod contact;
   3mod follower;
   4mod language_server;
   5mod project;
   6mod project_collaborator;
   7mod room;
   8mod room_participant;
   9mod server;
  10mod signup;
  11#[cfg(test)]
  12mod tests;
  13mod user;
  14mod worktree;
  15mod worktree_diagnostic_summary;
  16mod worktree_entry;
  17mod worktree_repository;
  18mod worktree_repository_statuses;
  19
  20use crate::executor::Executor;
  21use crate::{Error, Result};
  22use anyhow::anyhow;
  23use collections::{BTreeMap, HashMap, HashSet};
  24pub use contact::Contact;
  25use dashmap::DashMap;
  26use futures::StreamExt;
  27use hyper::StatusCode;
  28use rand::prelude::StdRng;
  29use rand::{Rng, SeedableRng};
  30use rpc::{proto, ConnectionId};
  31use sea_orm::Condition;
  32pub use sea_orm::ConnectOptions;
  33use sea_orm::{
  34    entity::prelude::*, ActiveValue, ConnectionTrait, DatabaseConnection, DatabaseTransaction,
  35    DbErr, FromQueryResult, IntoActiveModel, IsolationLevel, JoinType, QueryOrder, QuerySelect,
  36    Statement, TransactionTrait,
  37};
  38use sea_query::{Alias, Expr, OnConflict, Query};
  39use serde::{Deserialize, Serialize};
  40pub use signup::{Invite, NewSignup, WaitlistSummary};
  41use sqlx::migrate::{Migrate, Migration, MigrationSource};
  42use sqlx::Connection;
  43use std::ops::{Deref, DerefMut};
  44use std::path::Path;
  45use std::time::Duration;
  46use std::{future::Future, marker::PhantomData, rc::Rc, sync::Arc};
  47use tokio::sync::{Mutex, OwnedMutexGuard};
  48pub use user::Model as User;
  49
  50pub struct Database {
  51    options: ConnectOptions,
  52    pool: DatabaseConnection,
  53    rooms: DashMap<RoomId, Arc<Mutex<()>>>,
  54    rng: Mutex<StdRng>,
  55    executor: Executor,
  56    #[cfg(test)]
  57    runtime: Option<tokio::runtime::Runtime>,
  58}
  59
  60impl Database {
  61    pub async fn new(options: ConnectOptions, executor: Executor) -> Result<Self> {
  62        Ok(Self {
  63            options: options.clone(),
  64            pool: sea_orm::Database::connect(options).await?,
  65            rooms: DashMap::with_capacity(16384),
  66            rng: Mutex::new(StdRng::seed_from_u64(0)),
  67            executor,
  68            #[cfg(test)]
  69            runtime: None,
  70        })
  71    }
  72
  73    #[cfg(test)]
  74    pub fn reset(&self) {
  75        self.rooms.clear();
  76    }
  77
  78    pub async fn migrate(
  79        &self,
  80        migrations_path: &Path,
  81        ignore_checksum_mismatch: bool,
  82    ) -> anyhow::Result<Vec<(Migration, Duration)>> {
  83        let migrations = MigrationSource::resolve(migrations_path)
  84            .await
  85            .map_err(|err| anyhow!("failed to load migrations: {err:?}"))?;
  86
  87        let mut connection = sqlx::AnyConnection::connect(self.options.get_url()).await?;
  88
  89        connection.ensure_migrations_table().await?;
  90        let applied_migrations: HashMap<_, _> = connection
  91            .list_applied_migrations()
  92            .await?
  93            .into_iter()
  94            .map(|m| (m.version, m))
  95            .collect();
  96
  97        let mut new_migrations = Vec::new();
  98        for migration in migrations {
  99            match applied_migrations.get(&migration.version) {
 100                Some(applied_migration) => {
 101                    if migration.checksum != applied_migration.checksum && !ignore_checksum_mismatch
 102                    {
 103                        Err(anyhow!(
 104                            "checksum mismatch for applied migration {}",
 105                            migration.description
 106                        ))?;
 107                    }
 108                }
 109                None => {
 110                    let elapsed = connection.apply(&migration).await?;
 111                    new_migrations.push((migration, elapsed));
 112                }
 113            }
 114        }
 115
 116        Ok(new_migrations)
 117    }
 118
 119    pub async fn create_server(&self, environment: &str) -> Result<ServerId> {
 120        self.transaction(|tx| async move {
 121            let server = server::ActiveModel {
 122                environment: ActiveValue::set(environment.into()),
 123                ..Default::default()
 124            }
 125            .insert(&*tx)
 126            .await?;
 127            Ok(server.id)
 128        })
 129        .await
 130    }
 131
 132    pub async fn stale_room_ids(
 133        &self,
 134        environment: &str,
 135        new_server_id: ServerId,
 136    ) -> Result<Vec<RoomId>> {
 137        self.transaction(|tx| async move {
 138            #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
 139            enum QueryAs {
 140                RoomId,
 141            }
 142
 143            let stale_server_epochs = self
 144                .stale_server_ids(environment, new_server_id, &tx)
 145                .await?;
 146            Ok(room_participant::Entity::find()
 147                .select_only()
 148                .column(room_participant::Column::RoomId)
 149                .distinct()
 150                .filter(
 151                    room_participant::Column::AnsweringConnectionServerId
 152                        .is_in(stale_server_epochs),
 153                )
 154                .into_values::<_, QueryAs>()
 155                .all(&*tx)
 156                .await?)
 157        })
 158        .await
 159    }
 160
 161    pub async fn refresh_room(
 162        &self,
 163        room_id: RoomId,
 164        new_server_id: ServerId,
 165    ) -> Result<RoomGuard<RefreshedRoom>> {
 166        self.room_transaction(room_id, |tx| async move {
 167            let stale_participant_filter = Condition::all()
 168                .add(room_participant::Column::RoomId.eq(room_id))
 169                .add(room_participant::Column::AnsweringConnectionId.is_not_null())
 170                .add(room_participant::Column::AnsweringConnectionServerId.ne(new_server_id));
 171
 172            let stale_participant_user_ids = room_participant::Entity::find()
 173                .filter(stale_participant_filter.clone())
 174                .all(&*tx)
 175                .await?
 176                .into_iter()
 177                .map(|participant| participant.user_id)
 178                .collect::<Vec<_>>();
 179
 180            // Delete participants who failed to reconnect and cancel their calls.
 181            let mut canceled_calls_to_user_ids = Vec::new();
 182            room_participant::Entity::delete_many()
 183                .filter(stale_participant_filter)
 184                .exec(&*tx)
 185                .await?;
 186            let called_participants = room_participant::Entity::find()
 187                .filter(
 188                    Condition::all()
 189                        .add(
 190                            room_participant::Column::CallingUserId
 191                                .is_in(stale_participant_user_ids.iter().copied()),
 192                        )
 193                        .add(room_participant::Column::AnsweringConnectionId.is_null()),
 194                )
 195                .all(&*tx)
 196                .await?;
 197            room_participant::Entity::delete_many()
 198                .filter(
 199                    room_participant::Column::Id
 200                        .is_in(called_participants.iter().map(|participant| participant.id)),
 201                )
 202                .exec(&*tx)
 203                .await?;
 204            canceled_calls_to_user_ids.extend(
 205                called_participants
 206                    .into_iter()
 207                    .map(|participant| participant.user_id),
 208            );
 209
 210            let room = self.get_room(room_id, &tx).await?;
 211            // Delete the room if it becomes empty.
 212            if room.participants.is_empty() {
 213                project::Entity::delete_many()
 214                    .filter(project::Column::RoomId.eq(room_id))
 215                    .exec(&*tx)
 216                    .await?;
 217                room::Entity::delete_by_id(room_id).exec(&*tx).await?;
 218            }
 219
 220            Ok(RefreshedRoom {
 221                room,
 222                stale_participant_user_ids,
 223                canceled_calls_to_user_ids,
 224            })
 225        })
 226        .await
 227    }
 228
 229    pub async fn delete_stale_servers(
 230        &self,
 231        environment: &str,
 232        new_server_id: ServerId,
 233    ) -> Result<()> {
 234        self.transaction(|tx| async move {
 235            server::Entity::delete_many()
 236                .filter(
 237                    Condition::all()
 238                        .add(server::Column::Environment.eq(environment))
 239                        .add(server::Column::Id.ne(new_server_id)),
 240                )
 241                .exec(&*tx)
 242                .await?;
 243            Ok(())
 244        })
 245        .await
 246    }
 247
 248    async fn stale_server_ids(
 249        &self,
 250        environment: &str,
 251        new_server_id: ServerId,
 252        tx: &DatabaseTransaction,
 253    ) -> Result<Vec<ServerId>> {
 254        let stale_servers = server::Entity::find()
 255            .filter(
 256                Condition::all()
 257                    .add(server::Column::Environment.eq(environment))
 258                    .add(server::Column::Id.ne(new_server_id)),
 259            )
 260            .all(&*tx)
 261            .await?;
 262        Ok(stale_servers.into_iter().map(|server| server.id).collect())
 263    }
 264
 265    // users
 266
 267    pub async fn create_user(
 268        &self,
 269        email_address: &str,
 270        admin: bool,
 271        params: NewUserParams,
 272    ) -> Result<NewUserResult> {
 273        self.transaction(|tx| async {
 274            let tx = tx;
 275            let user = user::Entity::insert(user::ActiveModel {
 276                email_address: ActiveValue::set(Some(email_address.into())),
 277                github_login: ActiveValue::set(params.github_login.clone()),
 278                github_user_id: ActiveValue::set(Some(params.github_user_id)),
 279                admin: ActiveValue::set(admin),
 280                metrics_id: ActiveValue::set(Uuid::new_v4()),
 281                ..Default::default()
 282            })
 283            .on_conflict(
 284                OnConflict::column(user::Column::GithubLogin)
 285                    .update_column(user::Column::GithubLogin)
 286                    .to_owned(),
 287            )
 288            .exec_with_returning(&*tx)
 289            .await?;
 290
 291            Ok(NewUserResult {
 292                user_id: user.id,
 293                metrics_id: user.metrics_id.to_string(),
 294                signup_device_id: None,
 295                inviting_user_id: None,
 296            })
 297        })
 298        .await
 299    }
 300
 301    pub async fn get_user_by_id(&self, id: UserId) -> Result<Option<user::Model>> {
 302        self.transaction(|tx| async move { Ok(user::Entity::find_by_id(id).one(&*tx).await?) })
 303            .await
 304    }
 305
 306    pub async fn get_users_by_ids(&self, ids: Vec<UserId>) -> Result<Vec<user::Model>> {
 307        self.transaction(|tx| async {
 308            let tx = tx;
 309            Ok(user::Entity::find()
 310                .filter(user::Column::Id.is_in(ids.iter().copied()))
 311                .all(&*tx)
 312                .await?)
 313        })
 314        .await
 315    }
 316
 317    pub async fn get_user_by_github_login(&self, github_login: &str) -> Result<Option<User>> {
 318        self.transaction(|tx| async move {
 319            Ok(user::Entity::find()
 320                .filter(user::Column::GithubLogin.eq(github_login))
 321                .one(&*tx)
 322                .await?)
 323        })
 324        .await
 325    }
 326
 327    pub async fn get_or_create_user_by_github_account(
 328        &self,
 329        github_login: &str,
 330        github_user_id: Option<i32>,
 331        github_email: Option<&str>,
 332    ) -> Result<Option<User>> {
 333        self.transaction(|tx| async move {
 334            let tx = &*tx;
 335            if let Some(github_user_id) = github_user_id {
 336                if let Some(user_by_github_user_id) = user::Entity::find()
 337                    .filter(user::Column::GithubUserId.eq(github_user_id))
 338                    .one(tx)
 339                    .await?
 340                {
 341                    let mut user_by_github_user_id = user_by_github_user_id.into_active_model();
 342                    user_by_github_user_id.github_login = ActiveValue::set(github_login.into());
 343                    Ok(Some(user_by_github_user_id.update(tx).await?))
 344                } else if let Some(user_by_github_login) = user::Entity::find()
 345                    .filter(user::Column::GithubLogin.eq(github_login))
 346                    .one(tx)
 347                    .await?
 348                {
 349                    let mut user_by_github_login = user_by_github_login.into_active_model();
 350                    user_by_github_login.github_user_id = ActiveValue::set(Some(github_user_id));
 351                    Ok(Some(user_by_github_login.update(tx).await?))
 352                } else {
 353                    let user = user::Entity::insert(user::ActiveModel {
 354                        email_address: ActiveValue::set(github_email.map(|email| email.into())),
 355                        github_login: ActiveValue::set(github_login.into()),
 356                        github_user_id: ActiveValue::set(Some(github_user_id)),
 357                        admin: ActiveValue::set(false),
 358                        invite_count: ActiveValue::set(0),
 359                        invite_code: ActiveValue::set(None),
 360                        metrics_id: ActiveValue::set(Uuid::new_v4()),
 361                        ..Default::default()
 362                    })
 363                    .exec_with_returning(&*tx)
 364                    .await?;
 365                    Ok(Some(user))
 366                }
 367            } else {
 368                Ok(user::Entity::find()
 369                    .filter(user::Column::GithubLogin.eq(github_login))
 370                    .one(tx)
 371                    .await?)
 372            }
 373        })
 374        .await
 375    }
 376
 377    pub async fn get_all_users(&self, page: u32, limit: u32) -> Result<Vec<User>> {
 378        self.transaction(|tx| async move {
 379            Ok(user::Entity::find()
 380                .order_by_asc(user::Column::GithubLogin)
 381                .limit(limit as u64)
 382                .offset(page as u64 * limit as u64)
 383                .all(&*tx)
 384                .await?)
 385        })
 386        .await
 387    }
 388
 389    pub async fn get_users_with_no_invites(
 390        &self,
 391        invited_by_another_user: bool,
 392    ) -> Result<Vec<User>> {
 393        self.transaction(|tx| async move {
 394            Ok(user::Entity::find()
 395                .filter(
 396                    user::Column::InviteCount
 397                        .eq(0)
 398                        .and(if invited_by_another_user {
 399                            user::Column::InviterId.is_not_null()
 400                        } else {
 401                            user::Column::InviterId.is_null()
 402                        }),
 403                )
 404                .all(&*tx)
 405                .await?)
 406        })
 407        .await
 408    }
 409
 410    pub async fn get_user_metrics_id(&self, id: UserId) -> Result<String> {
 411        #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
 412        enum QueryAs {
 413            MetricsId,
 414        }
 415
 416        self.transaction(|tx| async move {
 417            let metrics_id: Uuid = user::Entity::find_by_id(id)
 418                .select_only()
 419                .column(user::Column::MetricsId)
 420                .into_values::<_, QueryAs>()
 421                .one(&*tx)
 422                .await?
 423                .ok_or_else(|| anyhow!("could not find user"))?;
 424            Ok(metrics_id.to_string())
 425        })
 426        .await
 427    }
 428
 429    pub async fn set_user_is_admin(&self, id: UserId, is_admin: bool) -> Result<()> {
 430        self.transaction(|tx| async move {
 431            user::Entity::update_many()
 432                .filter(user::Column::Id.eq(id))
 433                .set(user::ActiveModel {
 434                    admin: ActiveValue::set(is_admin),
 435                    ..Default::default()
 436                })
 437                .exec(&*tx)
 438                .await?;
 439            Ok(())
 440        })
 441        .await
 442    }
 443
 444    pub async fn set_user_connected_once(&self, id: UserId, connected_once: bool) -> Result<()> {
 445        self.transaction(|tx| async move {
 446            user::Entity::update_many()
 447                .filter(user::Column::Id.eq(id))
 448                .set(user::ActiveModel {
 449                    connected_once: ActiveValue::set(connected_once),
 450                    ..Default::default()
 451                })
 452                .exec(&*tx)
 453                .await?;
 454            Ok(())
 455        })
 456        .await
 457    }
 458
 459    pub async fn destroy_user(&self, id: UserId) -> Result<()> {
 460        self.transaction(|tx| async move {
 461            access_token::Entity::delete_many()
 462                .filter(access_token::Column::UserId.eq(id))
 463                .exec(&*tx)
 464                .await?;
 465            user::Entity::delete_by_id(id).exec(&*tx).await?;
 466            Ok(())
 467        })
 468        .await
 469    }
 470
 471    // contacts
 472
 473    pub async fn get_contacts(&self, user_id: UserId) -> Result<Vec<Contact>> {
 474        #[derive(Debug, FromQueryResult)]
 475        struct ContactWithUserBusyStatuses {
 476            user_id_a: UserId,
 477            user_id_b: UserId,
 478            a_to_b: bool,
 479            accepted: bool,
 480            should_notify: bool,
 481            user_a_busy: bool,
 482            user_b_busy: bool,
 483        }
 484
 485        self.transaction(|tx| async move {
 486            let user_a_participant = Alias::new("user_a_participant");
 487            let user_b_participant = Alias::new("user_b_participant");
 488            let mut db_contacts = contact::Entity::find()
 489                .column_as(
 490                    Expr::tbl(user_a_participant.clone(), room_participant::Column::Id)
 491                        .is_not_null(),
 492                    "user_a_busy",
 493                )
 494                .column_as(
 495                    Expr::tbl(user_b_participant.clone(), room_participant::Column::Id)
 496                        .is_not_null(),
 497                    "user_b_busy",
 498                )
 499                .filter(
 500                    contact::Column::UserIdA
 501                        .eq(user_id)
 502                        .or(contact::Column::UserIdB.eq(user_id)),
 503                )
 504                .join_as(
 505                    JoinType::LeftJoin,
 506                    contact::Relation::UserARoomParticipant.def(),
 507                    user_a_participant,
 508                )
 509                .join_as(
 510                    JoinType::LeftJoin,
 511                    contact::Relation::UserBRoomParticipant.def(),
 512                    user_b_participant,
 513                )
 514                .into_model::<ContactWithUserBusyStatuses>()
 515                .stream(&*tx)
 516                .await?;
 517
 518            let mut contacts = Vec::new();
 519            while let Some(db_contact) = db_contacts.next().await {
 520                let db_contact = db_contact?;
 521                if db_contact.user_id_a == user_id {
 522                    if db_contact.accepted {
 523                        contacts.push(Contact::Accepted {
 524                            user_id: db_contact.user_id_b,
 525                            should_notify: db_contact.should_notify && db_contact.a_to_b,
 526                            busy: db_contact.user_b_busy,
 527                        });
 528                    } else if db_contact.a_to_b {
 529                        contacts.push(Contact::Outgoing {
 530                            user_id: db_contact.user_id_b,
 531                        })
 532                    } else {
 533                        contacts.push(Contact::Incoming {
 534                            user_id: db_contact.user_id_b,
 535                            should_notify: db_contact.should_notify,
 536                        });
 537                    }
 538                } else if db_contact.accepted {
 539                    contacts.push(Contact::Accepted {
 540                        user_id: db_contact.user_id_a,
 541                        should_notify: db_contact.should_notify && !db_contact.a_to_b,
 542                        busy: db_contact.user_a_busy,
 543                    });
 544                } else if db_contact.a_to_b {
 545                    contacts.push(Contact::Incoming {
 546                        user_id: db_contact.user_id_a,
 547                        should_notify: db_contact.should_notify,
 548                    });
 549                } else {
 550                    contacts.push(Contact::Outgoing {
 551                        user_id: db_contact.user_id_a,
 552                    });
 553                }
 554            }
 555
 556            contacts.sort_unstable_by_key(|contact| contact.user_id());
 557
 558            Ok(contacts)
 559        })
 560        .await
 561    }
 562
 563    pub async fn is_user_busy(&self, user_id: UserId) -> Result<bool> {
 564        self.transaction(|tx| async move {
 565            let participant = room_participant::Entity::find()
 566                .filter(room_participant::Column::UserId.eq(user_id))
 567                .one(&*tx)
 568                .await?;
 569            Ok(participant.is_some())
 570        })
 571        .await
 572    }
 573
 574    pub async fn has_contact(&self, user_id_1: UserId, user_id_2: UserId) -> Result<bool> {
 575        self.transaction(|tx| async move {
 576            let (id_a, id_b) = if user_id_1 < user_id_2 {
 577                (user_id_1, user_id_2)
 578            } else {
 579                (user_id_2, user_id_1)
 580            };
 581
 582            Ok(contact::Entity::find()
 583                .filter(
 584                    contact::Column::UserIdA
 585                        .eq(id_a)
 586                        .and(contact::Column::UserIdB.eq(id_b))
 587                        .and(contact::Column::Accepted.eq(true)),
 588                )
 589                .one(&*tx)
 590                .await?
 591                .is_some())
 592        })
 593        .await
 594    }
 595
 596    pub async fn send_contact_request(&self, sender_id: UserId, receiver_id: UserId) -> Result<()> {
 597        self.transaction(|tx| async move {
 598            let (id_a, id_b, a_to_b) = if sender_id < receiver_id {
 599                (sender_id, receiver_id, true)
 600            } else {
 601                (receiver_id, sender_id, false)
 602            };
 603
 604            let rows_affected = contact::Entity::insert(contact::ActiveModel {
 605                user_id_a: ActiveValue::set(id_a),
 606                user_id_b: ActiveValue::set(id_b),
 607                a_to_b: ActiveValue::set(a_to_b),
 608                accepted: ActiveValue::set(false),
 609                should_notify: ActiveValue::set(true),
 610                ..Default::default()
 611            })
 612            .on_conflict(
 613                OnConflict::columns([contact::Column::UserIdA, contact::Column::UserIdB])
 614                    .values([
 615                        (contact::Column::Accepted, true.into()),
 616                        (contact::Column::ShouldNotify, false.into()),
 617                    ])
 618                    .action_and_where(
 619                        contact::Column::Accepted.eq(false).and(
 620                            contact::Column::AToB
 621                                .eq(a_to_b)
 622                                .and(contact::Column::UserIdA.eq(id_b))
 623                                .or(contact::Column::AToB
 624                                    .ne(a_to_b)
 625                                    .and(contact::Column::UserIdA.eq(id_a))),
 626                        ),
 627                    )
 628                    .to_owned(),
 629            )
 630            .exec_without_returning(&*tx)
 631            .await?;
 632
 633            if rows_affected == 1 {
 634                Ok(())
 635            } else {
 636                Err(anyhow!("contact already requested"))?
 637            }
 638        })
 639        .await
 640    }
 641
 642    /// Returns a bool indicating whether the removed contact had originally accepted or not
 643    ///
 644    /// Deletes the contact identified by the requester and responder ids, and then returns
 645    /// whether the deleted contact had originally accepted or was a pending contact request.
 646    ///
 647    /// # Arguments
 648    ///
 649    /// * `requester_id` - The user that initiates this request
 650    /// * `responder_id` - The user that will be removed
 651    pub async fn remove_contact(&self, requester_id: UserId, responder_id: UserId) -> Result<bool> {
 652        self.transaction(|tx| async move {
 653            let (id_a, id_b) = if responder_id < requester_id {
 654                (responder_id, requester_id)
 655            } else {
 656                (requester_id, responder_id)
 657            };
 658
 659            let contact = contact::Entity::find()
 660                .filter(
 661                    contact::Column::UserIdA
 662                        .eq(id_a)
 663                        .and(contact::Column::UserIdB.eq(id_b)),
 664                )
 665                .one(&*tx)
 666                .await?
 667                .ok_or_else(|| anyhow!("no such contact"))?;
 668
 669            contact::Entity::delete_by_id(contact.id).exec(&*tx).await?;
 670            Ok(contact.accepted)
 671        })
 672        .await
 673    }
 674
 675    pub async fn dismiss_contact_notification(
 676        &self,
 677        user_id: UserId,
 678        contact_user_id: UserId,
 679    ) -> Result<()> {
 680        self.transaction(|tx| async move {
 681            let (id_a, id_b, a_to_b) = if user_id < contact_user_id {
 682                (user_id, contact_user_id, true)
 683            } else {
 684                (contact_user_id, user_id, false)
 685            };
 686
 687            let result = contact::Entity::update_many()
 688                .set(contact::ActiveModel {
 689                    should_notify: ActiveValue::set(false),
 690                    ..Default::default()
 691                })
 692                .filter(
 693                    contact::Column::UserIdA
 694                        .eq(id_a)
 695                        .and(contact::Column::UserIdB.eq(id_b))
 696                        .and(
 697                            contact::Column::AToB
 698                                .eq(a_to_b)
 699                                .and(contact::Column::Accepted.eq(true))
 700                                .or(contact::Column::AToB
 701                                    .ne(a_to_b)
 702                                    .and(contact::Column::Accepted.eq(false))),
 703                        ),
 704                )
 705                .exec(&*tx)
 706                .await?;
 707            if result.rows_affected == 0 {
 708                Err(anyhow!("no such contact request"))?
 709            } else {
 710                Ok(())
 711            }
 712        })
 713        .await
 714    }
 715
 716    pub async fn respond_to_contact_request(
 717        &self,
 718        responder_id: UserId,
 719        requester_id: UserId,
 720        accept: bool,
 721    ) -> Result<()> {
 722        self.transaction(|tx| async move {
 723            let (id_a, id_b, a_to_b) = if responder_id < requester_id {
 724                (responder_id, requester_id, false)
 725            } else {
 726                (requester_id, responder_id, true)
 727            };
 728            let rows_affected = if accept {
 729                let result = contact::Entity::update_many()
 730                    .set(contact::ActiveModel {
 731                        accepted: ActiveValue::set(true),
 732                        should_notify: ActiveValue::set(true),
 733                        ..Default::default()
 734                    })
 735                    .filter(
 736                        contact::Column::UserIdA
 737                            .eq(id_a)
 738                            .and(contact::Column::UserIdB.eq(id_b))
 739                            .and(contact::Column::AToB.eq(a_to_b)),
 740                    )
 741                    .exec(&*tx)
 742                    .await?;
 743                result.rows_affected
 744            } else {
 745                let result = contact::Entity::delete_many()
 746                    .filter(
 747                        contact::Column::UserIdA
 748                            .eq(id_a)
 749                            .and(contact::Column::UserIdB.eq(id_b))
 750                            .and(contact::Column::AToB.eq(a_to_b))
 751                            .and(contact::Column::Accepted.eq(false)),
 752                    )
 753                    .exec(&*tx)
 754                    .await?;
 755
 756                result.rows_affected
 757            };
 758
 759            if rows_affected == 1 {
 760                Ok(())
 761            } else {
 762                Err(anyhow!("no such contact request"))?
 763            }
 764        })
 765        .await
 766    }
 767
 768    pub fn fuzzy_like_string(string: &str) -> String {
 769        let mut result = String::with_capacity(string.len() * 2 + 1);
 770        for c in string.chars() {
 771            if c.is_alphanumeric() {
 772                result.push('%');
 773                result.push(c);
 774            }
 775        }
 776        result.push('%');
 777        result
 778    }
 779
 780    pub async fn fuzzy_search_users(&self, name_query: &str, limit: u32) -> Result<Vec<User>> {
 781        self.transaction(|tx| async {
 782            let tx = tx;
 783            let like_string = Self::fuzzy_like_string(name_query);
 784            let query = "
 785                SELECT users.*
 786                FROM users
 787                WHERE github_login ILIKE $1
 788                ORDER BY github_login <-> $2
 789                LIMIT $3
 790            ";
 791
 792            Ok(user::Entity::find()
 793                .from_raw_sql(Statement::from_sql_and_values(
 794                    self.pool.get_database_backend(),
 795                    query.into(),
 796                    vec![like_string.into(), name_query.into(), limit.into()],
 797                ))
 798                .all(&*tx)
 799                .await?)
 800        })
 801        .await
 802    }
 803
 804    // signups
 805
 806    pub async fn create_signup(&self, signup: &NewSignup) -> Result<()> {
 807        self.transaction(|tx| async move {
 808            signup::Entity::insert(signup::ActiveModel {
 809                email_address: ActiveValue::set(signup.email_address.clone()),
 810                email_confirmation_code: ActiveValue::set(random_email_confirmation_code()),
 811                email_confirmation_sent: ActiveValue::set(false),
 812                platform_mac: ActiveValue::set(signup.platform_mac),
 813                platform_windows: ActiveValue::set(signup.platform_windows),
 814                platform_linux: ActiveValue::set(signup.platform_linux),
 815                platform_unknown: ActiveValue::set(false),
 816                editor_features: ActiveValue::set(Some(signup.editor_features.clone())),
 817                programming_languages: ActiveValue::set(Some(signup.programming_languages.clone())),
 818                device_id: ActiveValue::set(signup.device_id.clone()),
 819                added_to_mailing_list: ActiveValue::set(signup.added_to_mailing_list),
 820                ..Default::default()
 821            })
 822            .on_conflict(
 823                OnConflict::column(signup::Column::EmailAddress)
 824                    .update_columns([
 825                        signup::Column::PlatformMac,
 826                        signup::Column::PlatformWindows,
 827                        signup::Column::PlatformLinux,
 828                        signup::Column::EditorFeatures,
 829                        signup::Column::ProgrammingLanguages,
 830                        signup::Column::DeviceId,
 831                        signup::Column::AddedToMailingList,
 832                    ])
 833                    .to_owned(),
 834            )
 835            .exec(&*tx)
 836            .await?;
 837            Ok(())
 838        })
 839        .await
 840    }
 841
 842    pub async fn get_signup(&self, email_address: &str) -> Result<signup::Model> {
 843        self.transaction(|tx| async move {
 844            let signup = signup::Entity::find()
 845                .filter(signup::Column::EmailAddress.eq(email_address))
 846                .one(&*tx)
 847                .await?
 848                .ok_or_else(|| {
 849                    anyhow!("signup with email address {} doesn't exist", email_address)
 850                })?;
 851
 852            Ok(signup)
 853        })
 854        .await
 855    }
 856
 857    pub async fn get_waitlist_summary(&self) -> Result<WaitlistSummary> {
 858        self.transaction(|tx| async move {
 859            let query = "
 860                SELECT
 861                    COUNT(*) as count,
 862                    COALESCE(SUM(CASE WHEN platform_linux THEN 1 ELSE 0 END), 0) as linux_count,
 863                    COALESCE(SUM(CASE WHEN platform_mac THEN 1 ELSE 0 END), 0) as mac_count,
 864                    COALESCE(SUM(CASE WHEN platform_windows THEN 1 ELSE 0 END), 0) as windows_count,
 865                    COALESCE(SUM(CASE WHEN platform_unknown THEN 1 ELSE 0 END), 0) as unknown_count
 866                FROM (
 867                    SELECT *
 868                    FROM signups
 869                    WHERE
 870                        NOT email_confirmation_sent
 871                ) AS unsent
 872            ";
 873            Ok(
 874                WaitlistSummary::find_by_statement(Statement::from_sql_and_values(
 875                    self.pool.get_database_backend(),
 876                    query.into(),
 877                    vec![],
 878                ))
 879                .one(&*tx)
 880                .await?
 881                .ok_or_else(|| anyhow!("invalid result"))?,
 882            )
 883        })
 884        .await
 885    }
 886
 887    pub async fn record_sent_invites(&self, invites: &[Invite]) -> Result<()> {
 888        let emails = invites
 889            .iter()
 890            .map(|s| s.email_address.as_str())
 891            .collect::<Vec<_>>();
 892        self.transaction(|tx| async {
 893            let tx = tx;
 894            signup::Entity::update_many()
 895                .filter(signup::Column::EmailAddress.is_in(emails.iter().copied()))
 896                .set(signup::ActiveModel {
 897                    email_confirmation_sent: ActiveValue::set(true),
 898                    ..Default::default()
 899                })
 900                .exec(&*tx)
 901                .await?;
 902            Ok(())
 903        })
 904        .await
 905    }
 906
 907    pub async fn get_unsent_invites(&self, count: usize) -> Result<Vec<Invite>> {
 908        self.transaction(|tx| async move {
 909            Ok(signup::Entity::find()
 910                .select_only()
 911                .column(signup::Column::EmailAddress)
 912                .column(signup::Column::EmailConfirmationCode)
 913                .filter(
 914                    signup::Column::EmailConfirmationSent.eq(false).and(
 915                        signup::Column::PlatformMac
 916                            .eq(true)
 917                            .or(signup::Column::PlatformUnknown.eq(true)),
 918                    ),
 919                )
 920                .order_by_asc(signup::Column::CreatedAt)
 921                .limit(count as u64)
 922                .into_model()
 923                .all(&*tx)
 924                .await?)
 925        })
 926        .await
 927    }
 928
 929    // invite codes
 930
 931    pub async fn create_invite_from_code(
 932        &self,
 933        code: &str,
 934        email_address: &str,
 935        device_id: Option<&str>,
 936        added_to_mailing_list: bool,
 937    ) -> Result<Invite> {
 938        self.transaction(|tx| async move {
 939            let existing_user = user::Entity::find()
 940                .filter(user::Column::EmailAddress.eq(email_address))
 941                .one(&*tx)
 942                .await?;
 943
 944            if existing_user.is_some() {
 945                Err(anyhow!("email address is already in use"))?;
 946            }
 947
 948            let inviting_user_with_invites = match user::Entity::find()
 949                .filter(
 950                    user::Column::InviteCode
 951                        .eq(code)
 952                        .and(user::Column::InviteCount.gt(0)),
 953                )
 954                .one(&*tx)
 955                .await?
 956            {
 957                Some(inviting_user) => inviting_user,
 958                None => {
 959                    return Err(Error::Http(
 960                        StatusCode::UNAUTHORIZED,
 961                        "unable to find an invite code with invites remaining".to_string(),
 962                    ))?
 963                }
 964            };
 965            user::Entity::update_many()
 966                .filter(
 967                    user::Column::Id
 968                        .eq(inviting_user_with_invites.id)
 969                        .and(user::Column::InviteCount.gt(0)),
 970                )
 971                .col_expr(
 972                    user::Column::InviteCount,
 973                    Expr::col(user::Column::InviteCount).sub(1),
 974                )
 975                .exec(&*tx)
 976                .await?;
 977
 978            let signup = signup::Entity::insert(signup::ActiveModel {
 979                email_address: ActiveValue::set(email_address.into()),
 980                email_confirmation_code: ActiveValue::set(random_email_confirmation_code()),
 981                email_confirmation_sent: ActiveValue::set(false),
 982                inviting_user_id: ActiveValue::set(Some(inviting_user_with_invites.id)),
 983                platform_linux: ActiveValue::set(false),
 984                platform_mac: ActiveValue::set(false),
 985                platform_windows: ActiveValue::set(false),
 986                platform_unknown: ActiveValue::set(true),
 987                device_id: ActiveValue::set(device_id.map(|device_id| device_id.into())),
 988                added_to_mailing_list: ActiveValue::set(added_to_mailing_list),
 989                ..Default::default()
 990            })
 991            .on_conflict(
 992                OnConflict::column(signup::Column::EmailAddress)
 993                    .update_column(signup::Column::InvitingUserId)
 994                    .to_owned(),
 995            )
 996            .exec_with_returning(&*tx)
 997            .await?;
 998
 999            Ok(Invite {
1000                email_address: signup.email_address,
1001                email_confirmation_code: signup.email_confirmation_code,
1002            })
1003        })
1004        .await
1005    }
1006
1007    pub async fn create_user_from_invite(
1008        &self,
1009        invite: &Invite,
1010        user: NewUserParams,
1011    ) -> Result<Option<NewUserResult>> {
1012        self.transaction(|tx| async {
1013            let tx = tx;
1014            let signup = signup::Entity::find()
1015                .filter(
1016                    signup::Column::EmailAddress
1017                        .eq(invite.email_address.as_str())
1018                        .and(
1019                            signup::Column::EmailConfirmationCode
1020                                .eq(invite.email_confirmation_code.as_str()),
1021                        ),
1022                )
1023                .one(&*tx)
1024                .await?
1025                .ok_or_else(|| Error::Http(StatusCode::NOT_FOUND, "no such invite".to_string()))?;
1026
1027            if signup.user_id.is_some() {
1028                return Ok(None);
1029            }
1030
1031            let user = user::Entity::insert(user::ActiveModel {
1032                email_address: ActiveValue::set(Some(invite.email_address.clone())),
1033                github_login: ActiveValue::set(user.github_login.clone()),
1034                github_user_id: ActiveValue::set(Some(user.github_user_id)),
1035                admin: ActiveValue::set(false),
1036                invite_count: ActiveValue::set(user.invite_count),
1037                invite_code: ActiveValue::set(Some(random_invite_code())),
1038                metrics_id: ActiveValue::set(Uuid::new_v4()),
1039                ..Default::default()
1040            })
1041            .on_conflict(
1042                OnConflict::column(user::Column::GithubLogin)
1043                    .update_columns([
1044                        user::Column::EmailAddress,
1045                        user::Column::GithubUserId,
1046                        user::Column::Admin,
1047                    ])
1048                    .to_owned(),
1049            )
1050            .exec_with_returning(&*tx)
1051            .await?;
1052
1053            let mut signup = signup.into_active_model();
1054            signup.user_id = ActiveValue::set(Some(user.id));
1055            let signup = signup.update(&*tx).await?;
1056
1057            if let Some(inviting_user_id) = signup.inviting_user_id {
1058                let (user_id_a, user_id_b, a_to_b) = if inviting_user_id < user.id {
1059                    (inviting_user_id, user.id, true)
1060                } else {
1061                    (user.id, inviting_user_id, false)
1062                };
1063
1064                contact::Entity::insert(contact::ActiveModel {
1065                    user_id_a: ActiveValue::set(user_id_a),
1066                    user_id_b: ActiveValue::set(user_id_b),
1067                    a_to_b: ActiveValue::set(a_to_b),
1068                    should_notify: ActiveValue::set(true),
1069                    accepted: ActiveValue::set(true),
1070                    ..Default::default()
1071                })
1072                .on_conflict(OnConflict::new().do_nothing().to_owned())
1073                .exec_without_returning(&*tx)
1074                .await?;
1075            }
1076
1077            Ok(Some(NewUserResult {
1078                user_id: user.id,
1079                metrics_id: user.metrics_id.to_string(),
1080                inviting_user_id: signup.inviting_user_id,
1081                signup_device_id: signup.device_id,
1082            }))
1083        })
1084        .await
1085    }
1086
1087    pub async fn set_invite_count_for_user(&self, id: UserId, count: i32) -> Result<()> {
1088        self.transaction(|tx| async move {
1089            if count > 0 {
1090                user::Entity::update_many()
1091                    .filter(
1092                        user::Column::Id
1093                            .eq(id)
1094                            .and(user::Column::InviteCode.is_null()),
1095                    )
1096                    .set(user::ActiveModel {
1097                        invite_code: ActiveValue::set(Some(random_invite_code())),
1098                        ..Default::default()
1099                    })
1100                    .exec(&*tx)
1101                    .await?;
1102            }
1103
1104            user::Entity::update_many()
1105                .filter(user::Column::Id.eq(id))
1106                .set(user::ActiveModel {
1107                    invite_count: ActiveValue::set(count),
1108                    ..Default::default()
1109                })
1110                .exec(&*tx)
1111                .await?;
1112            Ok(())
1113        })
1114        .await
1115    }
1116
1117    pub async fn get_invite_code_for_user(&self, id: UserId) -> Result<Option<(String, i32)>> {
1118        self.transaction(|tx| async move {
1119            match user::Entity::find_by_id(id).one(&*tx).await? {
1120                Some(user) if user.invite_code.is_some() => {
1121                    Ok(Some((user.invite_code.unwrap(), user.invite_count)))
1122                }
1123                _ => Ok(None),
1124            }
1125        })
1126        .await
1127    }
1128
1129    pub async fn get_user_for_invite_code(&self, code: &str) -> Result<User> {
1130        self.transaction(|tx| async move {
1131            user::Entity::find()
1132                .filter(user::Column::InviteCode.eq(code))
1133                .one(&*tx)
1134                .await?
1135                .ok_or_else(|| {
1136                    Error::Http(
1137                        StatusCode::NOT_FOUND,
1138                        "that invite code does not exist".to_string(),
1139                    )
1140                })
1141        })
1142        .await
1143    }
1144
1145    // rooms
1146
1147    pub async fn incoming_call_for_user(
1148        &self,
1149        user_id: UserId,
1150    ) -> Result<Option<proto::IncomingCall>> {
1151        self.transaction(|tx| async move {
1152            let pending_participant = room_participant::Entity::find()
1153                .filter(
1154                    room_participant::Column::UserId
1155                        .eq(user_id)
1156                        .and(room_participant::Column::AnsweringConnectionId.is_null()),
1157                )
1158                .one(&*tx)
1159                .await?;
1160
1161            if let Some(pending_participant) = pending_participant {
1162                let room = self.get_room(pending_participant.room_id, &tx).await?;
1163                Ok(Self::build_incoming_call(&room, user_id))
1164            } else {
1165                Ok(None)
1166            }
1167        })
1168        .await
1169    }
1170
1171    pub async fn create_room(
1172        &self,
1173        user_id: UserId,
1174        connection: ConnectionId,
1175        live_kit_room: &str,
1176    ) -> Result<proto::Room> {
1177        self.transaction(|tx| async move {
1178            let room = room::ActiveModel {
1179                live_kit_room: ActiveValue::set(live_kit_room.into()),
1180                ..Default::default()
1181            }
1182            .insert(&*tx)
1183            .await?;
1184            room_participant::ActiveModel {
1185                room_id: ActiveValue::set(room.id),
1186                user_id: ActiveValue::set(user_id),
1187                answering_connection_id: ActiveValue::set(Some(connection.id as i32)),
1188                answering_connection_server_id: ActiveValue::set(Some(ServerId(
1189                    connection.owner_id as i32,
1190                ))),
1191                answering_connection_lost: ActiveValue::set(false),
1192                calling_user_id: ActiveValue::set(user_id),
1193                calling_connection_id: ActiveValue::set(connection.id as i32),
1194                calling_connection_server_id: ActiveValue::set(Some(ServerId(
1195                    connection.owner_id as i32,
1196                ))),
1197                ..Default::default()
1198            }
1199            .insert(&*tx)
1200            .await?;
1201
1202            let room = self.get_room(room.id, &tx).await?;
1203            Ok(room)
1204        })
1205        .await
1206    }
1207
1208    pub async fn call(
1209        &self,
1210        room_id: RoomId,
1211        calling_user_id: UserId,
1212        calling_connection: ConnectionId,
1213        called_user_id: UserId,
1214        initial_project_id: Option<ProjectId>,
1215    ) -> Result<RoomGuard<(proto::Room, proto::IncomingCall)>> {
1216        self.room_transaction(room_id, |tx| async move {
1217            room_participant::ActiveModel {
1218                room_id: ActiveValue::set(room_id),
1219                user_id: ActiveValue::set(called_user_id),
1220                answering_connection_lost: ActiveValue::set(false),
1221                calling_user_id: ActiveValue::set(calling_user_id),
1222                calling_connection_id: ActiveValue::set(calling_connection.id as i32),
1223                calling_connection_server_id: ActiveValue::set(Some(ServerId(
1224                    calling_connection.owner_id as i32,
1225                ))),
1226                initial_project_id: ActiveValue::set(initial_project_id),
1227                ..Default::default()
1228            }
1229            .insert(&*tx)
1230            .await?;
1231
1232            let room = self.get_room(room_id, &tx).await?;
1233            let incoming_call = Self::build_incoming_call(&room, called_user_id)
1234                .ok_or_else(|| anyhow!("failed to build incoming call"))?;
1235            Ok((room, incoming_call))
1236        })
1237        .await
1238    }
1239
1240    pub async fn call_failed(
1241        &self,
1242        room_id: RoomId,
1243        called_user_id: UserId,
1244    ) -> Result<RoomGuard<proto::Room>> {
1245        self.room_transaction(room_id, |tx| async move {
1246            room_participant::Entity::delete_many()
1247                .filter(
1248                    room_participant::Column::RoomId
1249                        .eq(room_id)
1250                        .and(room_participant::Column::UserId.eq(called_user_id)),
1251                )
1252                .exec(&*tx)
1253                .await?;
1254            let room = self.get_room(room_id, &tx).await?;
1255            Ok(room)
1256        })
1257        .await
1258    }
1259
1260    pub async fn decline_call(
1261        &self,
1262        expected_room_id: Option<RoomId>,
1263        user_id: UserId,
1264    ) -> Result<Option<RoomGuard<proto::Room>>> {
1265        self.optional_room_transaction(|tx| async move {
1266            let mut filter = Condition::all()
1267                .add(room_participant::Column::UserId.eq(user_id))
1268                .add(room_participant::Column::AnsweringConnectionId.is_null());
1269            if let Some(room_id) = expected_room_id {
1270                filter = filter.add(room_participant::Column::RoomId.eq(room_id));
1271            }
1272            let participant = room_participant::Entity::find()
1273                .filter(filter)
1274                .one(&*tx)
1275                .await?;
1276
1277            let participant = if let Some(participant) = participant {
1278                participant
1279            } else if expected_room_id.is_some() {
1280                return Err(anyhow!("could not find call to decline"))?;
1281            } else {
1282                return Ok(None);
1283            };
1284
1285            let room_id = participant.room_id;
1286            room_participant::Entity::delete(participant.into_active_model())
1287                .exec(&*tx)
1288                .await?;
1289
1290            let room = self.get_room(room_id, &tx).await?;
1291            Ok(Some((room_id, room)))
1292        })
1293        .await
1294    }
1295
1296    pub async fn cancel_call(
1297        &self,
1298        room_id: RoomId,
1299        calling_connection: ConnectionId,
1300        called_user_id: UserId,
1301    ) -> Result<RoomGuard<proto::Room>> {
1302        self.room_transaction(room_id, |tx| async move {
1303            let participant = room_participant::Entity::find()
1304                .filter(
1305                    Condition::all()
1306                        .add(room_participant::Column::UserId.eq(called_user_id))
1307                        .add(room_participant::Column::RoomId.eq(room_id))
1308                        .add(
1309                            room_participant::Column::CallingConnectionId
1310                                .eq(calling_connection.id as i32),
1311                        )
1312                        .add(
1313                            room_participant::Column::CallingConnectionServerId
1314                                .eq(calling_connection.owner_id as i32),
1315                        )
1316                        .add(room_participant::Column::AnsweringConnectionId.is_null()),
1317                )
1318                .one(&*tx)
1319                .await?
1320                .ok_or_else(|| anyhow!("no call to cancel"))?;
1321
1322            room_participant::Entity::delete(participant.into_active_model())
1323                .exec(&*tx)
1324                .await?;
1325
1326            let room = self.get_room(room_id, &tx).await?;
1327            Ok(room)
1328        })
1329        .await
1330    }
1331
1332    pub async fn join_room(
1333        &self,
1334        room_id: RoomId,
1335        user_id: UserId,
1336        connection: ConnectionId,
1337    ) -> Result<RoomGuard<proto::Room>> {
1338        self.room_transaction(room_id, |tx| async move {
1339            let result = room_participant::Entity::update_many()
1340                .filter(
1341                    Condition::all()
1342                        .add(room_participant::Column::RoomId.eq(room_id))
1343                        .add(room_participant::Column::UserId.eq(user_id))
1344                        .add(room_participant::Column::AnsweringConnectionId.is_null()),
1345                )
1346                .set(room_participant::ActiveModel {
1347                    answering_connection_id: ActiveValue::set(Some(connection.id as i32)),
1348                    answering_connection_server_id: ActiveValue::set(Some(ServerId(
1349                        connection.owner_id as i32,
1350                    ))),
1351                    answering_connection_lost: ActiveValue::set(false),
1352                    ..Default::default()
1353                })
1354                .exec(&*tx)
1355                .await?;
1356            if result.rows_affected == 0 {
1357                Err(anyhow!("room does not exist or was already joined"))?
1358            } else {
1359                let room = self.get_room(room_id, &tx).await?;
1360                Ok(room)
1361            }
1362        })
1363        .await
1364    }
1365
1366    pub async fn rejoin_room(
1367        &self,
1368        rejoin_room: proto::RejoinRoom,
1369        user_id: UserId,
1370        connection: ConnectionId,
1371    ) -> Result<RoomGuard<RejoinedRoom>> {
1372        let room_id = RoomId::from_proto(rejoin_room.id);
1373        self.room_transaction(room_id, |tx| async {
1374            let tx = tx;
1375            let participant_update = room_participant::Entity::update_many()
1376                .filter(
1377                    Condition::all()
1378                        .add(room_participant::Column::RoomId.eq(room_id))
1379                        .add(room_participant::Column::UserId.eq(user_id))
1380                        .add(room_participant::Column::AnsweringConnectionId.is_not_null())
1381                        .add(
1382                            Condition::any()
1383                                .add(room_participant::Column::AnsweringConnectionLost.eq(true))
1384                                .add(
1385                                    room_participant::Column::AnsweringConnectionServerId
1386                                        .ne(connection.owner_id as i32),
1387                                ),
1388                        ),
1389                )
1390                .set(room_participant::ActiveModel {
1391                    answering_connection_id: ActiveValue::set(Some(connection.id as i32)),
1392                    answering_connection_server_id: ActiveValue::set(Some(ServerId(
1393                        connection.owner_id as i32,
1394                    ))),
1395                    answering_connection_lost: ActiveValue::set(false),
1396                    ..Default::default()
1397                })
1398                .exec(&*tx)
1399                .await?;
1400            if participant_update.rows_affected == 0 {
1401                return Err(anyhow!("room does not exist or was already joined"))?;
1402            }
1403
1404            let mut reshared_projects = Vec::new();
1405            for reshared_project in &rejoin_room.reshared_projects {
1406                let project_id = ProjectId::from_proto(reshared_project.project_id);
1407                let project = project::Entity::find_by_id(project_id)
1408                    .one(&*tx)
1409                    .await?
1410                    .ok_or_else(|| anyhow!("project does not exist"))?;
1411                if project.host_user_id != user_id {
1412                    return Err(anyhow!("no such project"))?;
1413                }
1414
1415                let mut collaborators = project
1416                    .find_related(project_collaborator::Entity)
1417                    .all(&*tx)
1418                    .await?;
1419                let host_ix = collaborators
1420                    .iter()
1421                    .position(|collaborator| {
1422                        collaborator.user_id == user_id && collaborator.is_host
1423                    })
1424                    .ok_or_else(|| anyhow!("host not found among collaborators"))?;
1425                let host = collaborators.swap_remove(host_ix);
1426                let old_connection_id = host.connection();
1427
1428                project::Entity::update(project::ActiveModel {
1429                    host_connection_id: ActiveValue::set(Some(connection.id as i32)),
1430                    host_connection_server_id: ActiveValue::set(Some(ServerId(
1431                        connection.owner_id as i32,
1432                    ))),
1433                    ..project.into_active_model()
1434                })
1435                .exec(&*tx)
1436                .await?;
1437                project_collaborator::Entity::update(project_collaborator::ActiveModel {
1438                    connection_id: ActiveValue::set(connection.id as i32),
1439                    connection_server_id: ActiveValue::set(ServerId(connection.owner_id as i32)),
1440                    ..host.into_active_model()
1441                })
1442                .exec(&*tx)
1443                .await?;
1444
1445                self.update_project_worktrees(project_id, &reshared_project.worktrees, &tx)
1446                    .await?;
1447
1448                reshared_projects.push(ResharedProject {
1449                    id: project_id,
1450                    old_connection_id,
1451                    collaborators: collaborators
1452                        .iter()
1453                        .map(|collaborator| ProjectCollaborator {
1454                            connection_id: collaborator.connection(),
1455                            user_id: collaborator.user_id,
1456                            replica_id: collaborator.replica_id,
1457                            is_host: collaborator.is_host,
1458                        })
1459                        .collect(),
1460                    worktrees: reshared_project.worktrees.clone(),
1461                });
1462            }
1463
1464            project::Entity::delete_many()
1465                .filter(
1466                    Condition::all()
1467                        .add(project::Column::RoomId.eq(room_id))
1468                        .add(project::Column::HostUserId.eq(user_id))
1469                        .add(
1470                            project::Column::Id
1471                                .is_not_in(reshared_projects.iter().map(|project| project.id)),
1472                        ),
1473                )
1474                .exec(&*tx)
1475                .await?;
1476
1477            let mut rejoined_projects = Vec::new();
1478            for rejoined_project in &rejoin_room.rejoined_projects {
1479                let project_id = ProjectId::from_proto(rejoined_project.id);
1480                let Some(project) = project::Entity::find_by_id(project_id)
1481                    .one(&*tx)
1482                    .await? else { continue };
1483
1484                let mut worktrees = Vec::new();
1485                let db_worktrees = project.find_related(worktree::Entity).all(&*tx).await?;
1486                for db_worktree in db_worktrees {
1487                    let mut worktree = RejoinedWorktree {
1488                        id: db_worktree.id as u64,
1489                        abs_path: db_worktree.abs_path,
1490                        root_name: db_worktree.root_name,
1491                        visible: db_worktree.visible,
1492                        updated_entries: Default::default(),
1493                        removed_entries: Default::default(),
1494                        updated_repositories: Default::default(),
1495                        removed_repositories: Default::default(),
1496                        diagnostic_summaries: Default::default(),
1497                        scan_id: db_worktree.scan_id as u64,
1498                        completed_scan_id: db_worktree.completed_scan_id as u64,
1499                    };
1500
1501                    let rejoined_worktree = rejoined_project
1502                        .worktrees
1503                        .iter()
1504                        .find(|worktree| worktree.id == db_worktree.id as u64);
1505
1506                    // File entries
1507                    {
1508                        let entry_filter = if let Some(rejoined_worktree) = rejoined_worktree {
1509                            worktree_entry::Column::ScanId.gt(rejoined_worktree.scan_id)
1510                        } else {
1511                            worktree_entry::Column::IsDeleted.eq(false)
1512                        };
1513
1514                        let mut db_entries = worktree_entry::Entity::find()
1515                            .filter(
1516                                Condition::all()
1517                                    .add(worktree_entry::Column::ProjectId.eq(project.id))
1518                                    .add(worktree_entry::Column::WorktreeId.eq(worktree.id))
1519                                    .add(entry_filter),
1520                            )
1521                            .stream(&*tx)
1522                            .await?;
1523
1524                        while let Some(db_entry) = db_entries.next().await {
1525                            let db_entry = db_entry?;
1526                            if db_entry.is_deleted {
1527                                worktree.removed_entries.push(db_entry.id as u64);
1528                            } else {
1529                                worktree.updated_entries.push(proto::Entry {
1530                                    id: db_entry.id as u64,
1531                                    is_dir: db_entry.is_dir,
1532                                    path: db_entry.path,
1533                                    inode: db_entry.inode as u64,
1534                                    mtime: Some(proto::Timestamp {
1535                                        seconds: db_entry.mtime_seconds as u64,
1536                                        nanos: db_entry.mtime_nanos as u32,
1537                                    }),
1538                                    is_symlink: db_entry.is_symlink,
1539                                    is_ignored: db_entry.is_ignored,
1540                                });
1541                            }
1542                        }
1543                    }
1544
1545                    // Repository Entries
1546                    {
1547                        let repository_entry_filter =
1548                            if let Some(rejoined_worktree) = rejoined_worktree {
1549                                worktree_repository::Column::ScanId.gt(rejoined_worktree.scan_id)
1550                            } else {
1551                                worktree_repository::Column::IsDeleted.eq(false)
1552                            };
1553
1554                        let mut db_repositories = worktree_repository::Entity::find()
1555                            .filter(
1556                                Condition::all()
1557                                    .add(worktree_repository::Column::ProjectId.eq(project.id))
1558                                    .add(worktree_repository::Column::WorktreeId.eq(worktree.id))
1559                                    .add(repository_entry_filter),
1560                            )
1561                            .stream(&*tx)
1562                            .await?;
1563
1564                        while let Some(db_repository) = db_repositories.next().await {
1565                            let db_repository = db_repository?;
1566                            if db_repository.is_deleted {
1567                                worktree
1568                                    .removed_repositories
1569                                    .push(db_repository.work_directory_id as u64);
1570                            } else {
1571                                worktree.updated_repositories.push(proto::RepositoryEntry {
1572                                    work_directory_id: db_repository.work_directory_id as u64,
1573                                    branch: db_repository.branch,
1574                                    removed_repo_paths: Default::default(),
1575                                    updated_statuses: Default::default(),
1576                                });
1577                            }
1578                        }
1579                    }
1580
1581                    // Repository Status Entries
1582                    for repository in worktree.updated_repositories.iter_mut() {
1583                        let repository_status_entry_filter =
1584                            if let Some(rejoined_worktree) = rejoined_worktree {
1585                                worktree_repository_statuses::Column::ScanId
1586                                    .gt(rejoined_worktree.scan_id)
1587                            } else {
1588                                worktree_repository_statuses::Column::IsDeleted.eq(false)
1589                            };
1590
1591                        let mut db_repository_statuses =
1592                            worktree_repository_statuses::Entity::find()
1593                                .filter(
1594                                    Condition::all()
1595                                        .add(
1596                                            worktree_repository_statuses::Column::ProjectId
1597                                                .eq(project.id),
1598                                        )
1599                                        .add(
1600                                            worktree_repository_statuses::Column::WorktreeId
1601                                                .eq(worktree.id),
1602                                        )
1603                                        .add(
1604                                            worktree_repository_statuses::Column::WorkDirectoryId
1605                                                .eq(repository.work_directory_id),
1606                                        )
1607                                        .add(repository_status_entry_filter),
1608                                )
1609                                .stream(&*tx)
1610                                .await?;
1611
1612                        while let Some(db_status_entry) = db_repository_statuses.next().await {
1613                            let db_status_entry = db_status_entry?;
1614                            if db_status_entry.is_deleted {
1615                                repository
1616                                    .removed_repo_paths
1617                                    .push(db_status_entry.repo_path);
1618                            } else {
1619                                repository.updated_statuses.push(proto::StatusEntry {
1620                                    repo_path: db_status_entry.repo_path,
1621                                    status: db_status_entry.status as i32,
1622                                });
1623                            }
1624                        }
1625                    }
1626
1627                    worktrees.push(worktree);
1628                }
1629
1630                let language_servers = project
1631                    .find_related(language_server::Entity)
1632                    .all(&*tx)
1633                    .await?
1634                    .into_iter()
1635                    .map(|language_server| proto::LanguageServer {
1636                        id: language_server.id as u64,
1637                        name: language_server.name,
1638                    })
1639                    .collect::<Vec<_>>();
1640
1641                let mut collaborators = project
1642                    .find_related(project_collaborator::Entity)
1643                    .all(&*tx)
1644                    .await?;
1645                let self_collaborator = if let Some(self_collaborator_ix) = collaborators
1646                    .iter()
1647                    .position(|collaborator| collaborator.user_id == user_id)
1648                {
1649                    collaborators.swap_remove(self_collaborator_ix)
1650                } else {
1651                    continue;
1652                };
1653                let old_connection_id = self_collaborator.connection();
1654                project_collaborator::Entity::update(project_collaborator::ActiveModel {
1655                    connection_id: ActiveValue::set(connection.id as i32),
1656                    connection_server_id: ActiveValue::set(ServerId(connection.owner_id as i32)),
1657                    ..self_collaborator.into_active_model()
1658                })
1659                .exec(&*tx)
1660                .await?;
1661
1662                let collaborators = collaborators
1663                    .into_iter()
1664                    .map(|collaborator| ProjectCollaborator {
1665                        connection_id: collaborator.connection(),
1666                        user_id: collaborator.user_id,
1667                        replica_id: collaborator.replica_id,
1668                        is_host: collaborator.is_host,
1669                    })
1670                    .collect::<Vec<_>>();
1671
1672                rejoined_projects.push(RejoinedProject {
1673                    id: project_id,
1674                    old_connection_id,
1675                    collaborators,
1676                    worktrees,
1677                    language_servers,
1678                });
1679            }
1680
1681            let room = self.get_room(room_id, &tx).await?;
1682            Ok(RejoinedRoom {
1683                room,
1684                rejoined_projects,
1685                reshared_projects,
1686            })
1687        })
1688        .await
1689    }
1690
1691    pub async fn leave_room(
1692        &self,
1693        connection: ConnectionId,
1694    ) -> Result<Option<RoomGuard<LeftRoom>>> {
1695        self.optional_room_transaction(|tx| async move {
1696            let leaving_participant = room_participant::Entity::find()
1697                .filter(
1698                    Condition::all()
1699                        .add(
1700                            room_participant::Column::AnsweringConnectionId
1701                                .eq(connection.id as i32),
1702                        )
1703                        .add(
1704                            room_participant::Column::AnsweringConnectionServerId
1705                                .eq(connection.owner_id as i32),
1706                        ),
1707                )
1708                .one(&*tx)
1709                .await?;
1710
1711            if let Some(leaving_participant) = leaving_participant {
1712                // Leave room.
1713                let room_id = leaving_participant.room_id;
1714                room_participant::Entity::delete_by_id(leaving_participant.id)
1715                    .exec(&*tx)
1716                    .await?;
1717
1718                // Cancel pending calls initiated by the leaving user.
1719                let called_participants = room_participant::Entity::find()
1720                    .filter(
1721                        Condition::all()
1722                            .add(
1723                                room_participant::Column::CallingUserId
1724                                    .eq(leaving_participant.user_id),
1725                            )
1726                            .add(room_participant::Column::AnsweringConnectionId.is_null()),
1727                    )
1728                    .all(&*tx)
1729                    .await?;
1730                room_participant::Entity::delete_many()
1731                    .filter(
1732                        room_participant::Column::Id
1733                            .is_in(called_participants.iter().map(|participant| participant.id)),
1734                    )
1735                    .exec(&*tx)
1736                    .await?;
1737                let canceled_calls_to_user_ids = called_participants
1738                    .into_iter()
1739                    .map(|participant| participant.user_id)
1740                    .collect();
1741
1742                // Detect left projects.
1743                #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
1744                enum QueryProjectIds {
1745                    ProjectId,
1746                }
1747                let project_ids: Vec<ProjectId> = project_collaborator::Entity::find()
1748                    .select_only()
1749                    .column_as(
1750                        project_collaborator::Column::ProjectId,
1751                        QueryProjectIds::ProjectId,
1752                    )
1753                    .filter(
1754                        Condition::all()
1755                            .add(
1756                                project_collaborator::Column::ConnectionId.eq(connection.id as i32),
1757                            )
1758                            .add(
1759                                project_collaborator::Column::ConnectionServerId
1760                                    .eq(connection.owner_id as i32),
1761                            ),
1762                    )
1763                    .into_values::<_, QueryProjectIds>()
1764                    .all(&*tx)
1765                    .await?;
1766                let mut left_projects = HashMap::default();
1767                let mut collaborators = project_collaborator::Entity::find()
1768                    .filter(project_collaborator::Column::ProjectId.is_in(project_ids))
1769                    .stream(&*tx)
1770                    .await?;
1771                while let Some(collaborator) = collaborators.next().await {
1772                    let collaborator = collaborator?;
1773                    let left_project =
1774                        left_projects
1775                            .entry(collaborator.project_id)
1776                            .or_insert(LeftProject {
1777                                id: collaborator.project_id,
1778                                host_user_id: Default::default(),
1779                                connection_ids: Default::default(),
1780                                host_connection_id: Default::default(),
1781                            });
1782
1783                    let collaborator_connection_id = collaborator.connection();
1784                    if collaborator_connection_id != connection {
1785                        left_project.connection_ids.push(collaborator_connection_id);
1786                    }
1787
1788                    if collaborator.is_host {
1789                        left_project.host_user_id = collaborator.user_id;
1790                        left_project.host_connection_id = collaborator_connection_id;
1791                    }
1792                }
1793                drop(collaborators);
1794
1795                // Leave projects.
1796                project_collaborator::Entity::delete_many()
1797                    .filter(
1798                        Condition::all()
1799                            .add(
1800                                project_collaborator::Column::ConnectionId.eq(connection.id as i32),
1801                            )
1802                            .add(
1803                                project_collaborator::Column::ConnectionServerId
1804                                    .eq(connection.owner_id as i32),
1805                            ),
1806                    )
1807                    .exec(&*tx)
1808                    .await?;
1809
1810                // Unshare projects.
1811                project::Entity::delete_many()
1812                    .filter(
1813                        Condition::all()
1814                            .add(project::Column::RoomId.eq(room_id))
1815                            .add(project::Column::HostConnectionId.eq(connection.id as i32))
1816                            .add(
1817                                project::Column::HostConnectionServerId
1818                                    .eq(connection.owner_id as i32),
1819                            ),
1820                    )
1821                    .exec(&*tx)
1822                    .await?;
1823
1824                let room = self.get_room(room_id, &tx).await?;
1825                if room.participants.is_empty() {
1826                    room::Entity::delete_by_id(room_id).exec(&*tx).await?;
1827                }
1828
1829                let left_room = LeftRoom {
1830                    room,
1831                    left_projects,
1832                    canceled_calls_to_user_ids,
1833                };
1834
1835                if left_room.room.participants.is_empty() {
1836                    self.rooms.remove(&room_id);
1837                }
1838
1839                Ok(Some((room_id, left_room)))
1840            } else {
1841                Ok(None)
1842            }
1843        })
1844        .await
1845    }
1846
1847    pub async fn follow(
1848        &self,
1849        project_id: ProjectId,
1850        leader_connection: ConnectionId,
1851        follower_connection: ConnectionId,
1852    ) -> Result<RoomGuard<proto::Room>> {
1853        let room_id = self.room_id_for_project(project_id).await?;
1854        self.room_transaction(room_id, |tx| async move {
1855            follower::ActiveModel {
1856                room_id: ActiveValue::set(room_id),
1857                project_id: ActiveValue::set(project_id),
1858                leader_connection_server_id: ActiveValue::set(ServerId(
1859                    leader_connection.owner_id as i32,
1860                )),
1861                leader_connection_id: ActiveValue::set(leader_connection.id as i32),
1862                follower_connection_server_id: ActiveValue::set(ServerId(
1863                    follower_connection.owner_id as i32,
1864                )),
1865                follower_connection_id: ActiveValue::set(follower_connection.id as i32),
1866                ..Default::default()
1867            }
1868            .insert(&*tx)
1869            .await?;
1870
1871            let room = self.get_room(room_id, &*tx).await?;
1872            Ok(room)
1873        })
1874        .await
1875    }
1876
1877    pub async fn unfollow(
1878        &self,
1879        project_id: ProjectId,
1880        leader_connection: ConnectionId,
1881        follower_connection: ConnectionId,
1882    ) -> Result<RoomGuard<proto::Room>> {
1883        let room_id = self.room_id_for_project(project_id).await?;
1884        self.room_transaction(room_id, |tx| async move {
1885            follower::Entity::delete_many()
1886                .filter(
1887                    Condition::all()
1888                        .add(follower::Column::ProjectId.eq(project_id))
1889                        .add(
1890                            follower::Column::LeaderConnectionServerId
1891                                .eq(leader_connection.owner_id),
1892                        )
1893                        .add(follower::Column::LeaderConnectionId.eq(leader_connection.id))
1894                        .add(
1895                            follower::Column::FollowerConnectionServerId
1896                                .eq(follower_connection.owner_id),
1897                        )
1898                        .add(follower::Column::FollowerConnectionId.eq(follower_connection.id)),
1899                )
1900                .exec(&*tx)
1901                .await?;
1902
1903            let room = self.get_room(room_id, &*tx).await?;
1904            Ok(room)
1905        })
1906        .await
1907    }
1908
1909    pub async fn update_room_participant_location(
1910        &self,
1911        room_id: RoomId,
1912        connection: ConnectionId,
1913        location: proto::ParticipantLocation,
1914    ) -> Result<RoomGuard<proto::Room>> {
1915        self.room_transaction(room_id, |tx| async {
1916            let tx = tx;
1917            let location_kind;
1918            let location_project_id;
1919            match location
1920                .variant
1921                .as_ref()
1922                .ok_or_else(|| anyhow!("invalid location"))?
1923            {
1924                proto::participant_location::Variant::SharedProject(project) => {
1925                    location_kind = 0;
1926                    location_project_id = Some(ProjectId::from_proto(project.id));
1927                }
1928                proto::participant_location::Variant::UnsharedProject(_) => {
1929                    location_kind = 1;
1930                    location_project_id = None;
1931                }
1932                proto::participant_location::Variant::External(_) => {
1933                    location_kind = 2;
1934                    location_project_id = None;
1935                }
1936            }
1937
1938            let result = room_participant::Entity::update_many()
1939                .filter(
1940                    Condition::all()
1941                        .add(room_participant::Column::RoomId.eq(room_id))
1942                        .add(
1943                            room_participant::Column::AnsweringConnectionId
1944                                .eq(connection.id as i32),
1945                        )
1946                        .add(
1947                            room_participant::Column::AnsweringConnectionServerId
1948                                .eq(connection.owner_id as i32),
1949                        ),
1950                )
1951                .set(room_participant::ActiveModel {
1952                    location_kind: ActiveValue::set(Some(location_kind)),
1953                    location_project_id: ActiveValue::set(location_project_id),
1954                    ..Default::default()
1955                })
1956                .exec(&*tx)
1957                .await?;
1958
1959            if result.rows_affected == 1 {
1960                let room = self.get_room(room_id, &tx).await?;
1961                Ok(room)
1962            } else {
1963                Err(anyhow!("could not update room participant location"))?
1964            }
1965        })
1966        .await
1967    }
1968
1969    pub async fn connection_lost(&self, connection: ConnectionId) -> Result<()> {
1970        self.transaction(|tx| async move {
1971            let participant = room_participant::Entity::find()
1972                .filter(
1973                    Condition::all()
1974                        .add(
1975                            room_participant::Column::AnsweringConnectionId
1976                                .eq(connection.id as i32),
1977                        )
1978                        .add(
1979                            room_participant::Column::AnsweringConnectionServerId
1980                                .eq(connection.owner_id as i32),
1981                        ),
1982                )
1983                .one(&*tx)
1984                .await?
1985                .ok_or_else(|| anyhow!("not a participant in any room"))?;
1986
1987            room_participant::Entity::update(room_participant::ActiveModel {
1988                answering_connection_lost: ActiveValue::set(true),
1989                ..participant.into_active_model()
1990            })
1991            .exec(&*tx)
1992            .await?;
1993
1994            Ok(())
1995        })
1996        .await
1997    }
1998
1999    fn build_incoming_call(
2000        room: &proto::Room,
2001        called_user_id: UserId,
2002    ) -> Option<proto::IncomingCall> {
2003        let pending_participant = room
2004            .pending_participants
2005            .iter()
2006            .find(|participant| participant.user_id == called_user_id.to_proto())?;
2007
2008        Some(proto::IncomingCall {
2009            room_id: room.id,
2010            calling_user_id: pending_participant.calling_user_id,
2011            participant_user_ids: room
2012                .participants
2013                .iter()
2014                .map(|participant| participant.user_id)
2015                .collect(),
2016            initial_project: room.participants.iter().find_map(|participant| {
2017                let initial_project_id = pending_participant.initial_project_id?;
2018                participant
2019                    .projects
2020                    .iter()
2021                    .find(|project| project.id == initial_project_id)
2022                    .cloned()
2023            }),
2024        })
2025    }
2026
2027    async fn get_room(&self, room_id: RoomId, tx: &DatabaseTransaction) -> Result<proto::Room> {
2028        let db_room = room::Entity::find_by_id(room_id)
2029            .one(tx)
2030            .await?
2031            .ok_or_else(|| anyhow!("could not find room"))?;
2032
2033        let mut db_participants = db_room
2034            .find_related(room_participant::Entity)
2035            .stream(tx)
2036            .await?;
2037        let mut participants = HashMap::default();
2038        let mut pending_participants = Vec::new();
2039        while let Some(db_participant) = db_participants.next().await {
2040            let db_participant = db_participant?;
2041            if let Some((answering_connection_id, answering_connection_server_id)) = db_participant
2042                .answering_connection_id
2043                .zip(db_participant.answering_connection_server_id)
2044            {
2045                let location = match (
2046                    db_participant.location_kind,
2047                    db_participant.location_project_id,
2048                ) {
2049                    (Some(0), Some(project_id)) => {
2050                        Some(proto::participant_location::Variant::SharedProject(
2051                            proto::participant_location::SharedProject {
2052                                id: project_id.to_proto(),
2053                            },
2054                        ))
2055                    }
2056                    (Some(1), _) => Some(proto::participant_location::Variant::UnsharedProject(
2057                        Default::default(),
2058                    )),
2059                    _ => Some(proto::participant_location::Variant::External(
2060                        Default::default(),
2061                    )),
2062                };
2063
2064                let answering_connection = ConnectionId {
2065                    owner_id: answering_connection_server_id.0 as u32,
2066                    id: answering_connection_id as u32,
2067                };
2068                participants.insert(
2069                    answering_connection,
2070                    proto::Participant {
2071                        user_id: db_participant.user_id.to_proto(),
2072                        peer_id: Some(answering_connection.into()),
2073                        projects: Default::default(),
2074                        location: Some(proto::ParticipantLocation { variant: location }),
2075                    },
2076                );
2077            } else {
2078                pending_participants.push(proto::PendingParticipant {
2079                    user_id: db_participant.user_id.to_proto(),
2080                    calling_user_id: db_participant.calling_user_id.to_proto(),
2081                    initial_project_id: db_participant.initial_project_id.map(|id| id.to_proto()),
2082                });
2083            }
2084        }
2085        drop(db_participants);
2086
2087        let mut db_projects = db_room
2088            .find_related(project::Entity)
2089            .find_with_related(worktree::Entity)
2090            .stream(tx)
2091            .await?;
2092
2093        while let Some(row) = db_projects.next().await {
2094            let (db_project, db_worktree) = row?;
2095            let host_connection = db_project.host_connection()?;
2096            if let Some(participant) = participants.get_mut(&host_connection) {
2097                let project = if let Some(project) = participant
2098                    .projects
2099                    .iter_mut()
2100                    .find(|project| project.id == db_project.id.to_proto())
2101                {
2102                    project
2103                } else {
2104                    participant.projects.push(proto::ParticipantProject {
2105                        id: db_project.id.to_proto(),
2106                        worktree_root_names: Default::default(),
2107                    });
2108                    participant.projects.last_mut().unwrap()
2109                };
2110
2111                if let Some(db_worktree) = db_worktree {
2112                    if db_worktree.visible {
2113                        project.worktree_root_names.push(db_worktree.root_name);
2114                    }
2115                }
2116            }
2117        }
2118        drop(db_projects);
2119
2120        let mut db_followers = db_room.find_related(follower::Entity).stream(tx).await?;
2121        let mut followers = Vec::new();
2122        while let Some(db_follower) = db_followers.next().await {
2123            let db_follower = db_follower?;
2124            followers.push(proto::Follower {
2125                leader_id: Some(db_follower.leader_connection().into()),
2126                follower_id: Some(db_follower.follower_connection().into()),
2127                project_id: db_follower.project_id.to_proto(),
2128            });
2129        }
2130
2131        Ok(proto::Room {
2132            id: db_room.id.to_proto(),
2133            live_kit_room: db_room.live_kit_room,
2134            participants: participants.into_values().collect(),
2135            pending_participants,
2136            followers,
2137        })
2138    }
2139
2140    // projects
2141
2142    pub async fn project_count_excluding_admins(&self) -> Result<usize> {
2143        #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
2144        enum QueryAs {
2145            Count,
2146        }
2147
2148        self.transaction(|tx| async move {
2149            Ok(project::Entity::find()
2150                .select_only()
2151                .column_as(project::Column::Id.count(), QueryAs::Count)
2152                .inner_join(user::Entity)
2153                .filter(user::Column::Admin.eq(false))
2154                .into_values::<_, QueryAs>()
2155                .one(&*tx)
2156                .await?
2157                .unwrap_or(0i64) as usize)
2158        })
2159        .await
2160    }
2161
2162    pub async fn share_project(
2163        &self,
2164        room_id: RoomId,
2165        connection: ConnectionId,
2166        worktrees: &[proto::WorktreeMetadata],
2167    ) -> Result<RoomGuard<(ProjectId, proto::Room)>> {
2168        self.room_transaction(room_id, |tx| async move {
2169            let participant = room_participant::Entity::find()
2170                .filter(
2171                    Condition::all()
2172                        .add(
2173                            room_participant::Column::AnsweringConnectionId
2174                                .eq(connection.id as i32),
2175                        )
2176                        .add(
2177                            room_participant::Column::AnsweringConnectionServerId
2178                                .eq(connection.owner_id as i32),
2179                        ),
2180                )
2181                .one(&*tx)
2182                .await?
2183                .ok_or_else(|| anyhow!("could not find participant"))?;
2184            if participant.room_id != room_id {
2185                return Err(anyhow!("shared project on unexpected room"))?;
2186            }
2187
2188            let project = project::ActiveModel {
2189                room_id: ActiveValue::set(participant.room_id),
2190                host_user_id: ActiveValue::set(participant.user_id),
2191                host_connection_id: ActiveValue::set(Some(connection.id as i32)),
2192                host_connection_server_id: ActiveValue::set(Some(ServerId(
2193                    connection.owner_id as i32,
2194                ))),
2195                ..Default::default()
2196            }
2197            .insert(&*tx)
2198            .await?;
2199
2200            if !worktrees.is_empty() {
2201                worktree::Entity::insert_many(worktrees.iter().map(|worktree| {
2202                    worktree::ActiveModel {
2203                        id: ActiveValue::set(worktree.id as i64),
2204                        project_id: ActiveValue::set(project.id),
2205                        abs_path: ActiveValue::set(worktree.abs_path.clone()),
2206                        root_name: ActiveValue::set(worktree.root_name.clone()),
2207                        visible: ActiveValue::set(worktree.visible),
2208                        scan_id: ActiveValue::set(0),
2209                        completed_scan_id: ActiveValue::set(0),
2210                    }
2211                }))
2212                .exec(&*tx)
2213                .await?;
2214            }
2215
2216            project_collaborator::ActiveModel {
2217                project_id: ActiveValue::set(project.id),
2218                connection_id: ActiveValue::set(connection.id as i32),
2219                connection_server_id: ActiveValue::set(ServerId(connection.owner_id as i32)),
2220                user_id: ActiveValue::set(participant.user_id),
2221                replica_id: ActiveValue::set(ReplicaId(0)),
2222                is_host: ActiveValue::set(true),
2223                ..Default::default()
2224            }
2225            .insert(&*tx)
2226            .await?;
2227
2228            let room = self.get_room(room_id, &tx).await?;
2229            Ok((project.id, room))
2230        })
2231        .await
2232    }
2233
2234    pub async fn unshare_project(
2235        &self,
2236        project_id: ProjectId,
2237        connection: ConnectionId,
2238    ) -> Result<RoomGuard<(proto::Room, Vec<ConnectionId>)>> {
2239        let room_id = self.room_id_for_project(project_id).await?;
2240        self.room_transaction(room_id, |tx| async move {
2241            let guest_connection_ids = self.project_guest_connection_ids(project_id, &tx).await?;
2242
2243            let project = project::Entity::find_by_id(project_id)
2244                .one(&*tx)
2245                .await?
2246                .ok_or_else(|| anyhow!("project not found"))?;
2247            if project.host_connection()? == connection {
2248                project::Entity::delete(project.into_active_model())
2249                    .exec(&*tx)
2250                    .await?;
2251                let room = self.get_room(room_id, &tx).await?;
2252                Ok((room, guest_connection_ids))
2253            } else {
2254                Err(anyhow!("cannot unshare a project hosted by another user"))?
2255            }
2256        })
2257        .await
2258    }
2259
2260    pub async fn update_project(
2261        &self,
2262        project_id: ProjectId,
2263        connection: ConnectionId,
2264        worktrees: &[proto::WorktreeMetadata],
2265    ) -> Result<RoomGuard<(proto::Room, Vec<ConnectionId>)>> {
2266        let room_id = self.room_id_for_project(project_id).await?;
2267        self.room_transaction(room_id, |tx| async move {
2268            let project = project::Entity::find_by_id(project_id)
2269                .filter(
2270                    Condition::all()
2271                        .add(project::Column::HostConnectionId.eq(connection.id as i32))
2272                        .add(
2273                            project::Column::HostConnectionServerId.eq(connection.owner_id as i32),
2274                        ),
2275                )
2276                .one(&*tx)
2277                .await?
2278                .ok_or_else(|| anyhow!("no such project"))?;
2279
2280            self.update_project_worktrees(project.id, worktrees, &tx)
2281                .await?;
2282
2283            let guest_connection_ids = self.project_guest_connection_ids(project.id, &tx).await?;
2284            let room = self.get_room(project.room_id, &tx).await?;
2285            Ok((room, guest_connection_ids))
2286        })
2287        .await
2288    }
2289
2290    async fn update_project_worktrees(
2291        &self,
2292        project_id: ProjectId,
2293        worktrees: &[proto::WorktreeMetadata],
2294        tx: &DatabaseTransaction,
2295    ) -> Result<()> {
2296        if !worktrees.is_empty() {
2297            worktree::Entity::insert_many(worktrees.iter().map(|worktree| worktree::ActiveModel {
2298                id: ActiveValue::set(worktree.id as i64),
2299                project_id: ActiveValue::set(project_id),
2300                abs_path: ActiveValue::set(worktree.abs_path.clone()),
2301                root_name: ActiveValue::set(worktree.root_name.clone()),
2302                visible: ActiveValue::set(worktree.visible),
2303                scan_id: ActiveValue::set(0),
2304                completed_scan_id: ActiveValue::set(0),
2305            }))
2306            .on_conflict(
2307                OnConflict::columns([worktree::Column::ProjectId, worktree::Column::Id])
2308                    .update_column(worktree::Column::RootName)
2309                    .to_owned(),
2310            )
2311            .exec(&*tx)
2312            .await?;
2313        }
2314
2315        worktree::Entity::delete_many()
2316            .filter(worktree::Column::ProjectId.eq(project_id).and(
2317                worktree::Column::Id.is_not_in(worktrees.iter().map(|worktree| worktree.id as i64)),
2318            ))
2319            .exec(&*tx)
2320            .await?;
2321
2322        Ok(())
2323    }
2324
2325    pub async fn update_worktree(
2326        &self,
2327        update: &proto::UpdateWorktree,
2328        connection: ConnectionId,
2329    ) -> Result<RoomGuard<Vec<ConnectionId>>> {
2330        let project_id = ProjectId::from_proto(update.project_id);
2331        let worktree_id = update.worktree_id as i64;
2332        let room_id = self.room_id_for_project(project_id).await?;
2333        self.room_transaction(room_id, |tx| async move {
2334            // Ensure the update comes from the host.
2335            let _project = project::Entity::find_by_id(project_id)
2336                .filter(
2337                    Condition::all()
2338                        .add(project::Column::HostConnectionId.eq(connection.id as i32))
2339                        .add(
2340                            project::Column::HostConnectionServerId.eq(connection.owner_id as i32),
2341                        ),
2342                )
2343                .one(&*tx)
2344                .await?
2345                .ok_or_else(|| anyhow!("no such project"))?;
2346
2347            // Update metadata.
2348            worktree::Entity::update(worktree::ActiveModel {
2349                id: ActiveValue::set(worktree_id),
2350                project_id: ActiveValue::set(project_id),
2351                root_name: ActiveValue::set(update.root_name.clone()),
2352                scan_id: ActiveValue::set(update.scan_id as i64),
2353                completed_scan_id: if update.is_last_update {
2354                    ActiveValue::set(update.scan_id as i64)
2355                } else {
2356                    ActiveValue::default()
2357                },
2358                abs_path: ActiveValue::set(update.abs_path.clone()),
2359                ..Default::default()
2360            })
2361            .exec(&*tx)
2362            .await?;
2363
2364            if !update.updated_entries.is_empty() {
2365                worktree_entry::Entity::insert_many(update.updated_entries.iter().map(|entry| {
2366                    let mtime = entry.mtime.clone().unwrap_or_default();
2367                    worktree_entry::ActiveModel {
2368                        project_id: ActiveValue::set(project_id),
2369                        worktree_id: ActiveValue::set(worktree_id),
2370                        id: ActiveValue::set(entry.id as i64),
2371                        is_dir: ActiveValue::set(entry.is_dir),
2372                        path: ActiveValue::set(entry.path.clone()),
2373                        inode: ActiveValue::set(entry.inode as i64),
2374                        mtime_seconds: ActiveValue::set(mtime.seconds as i64),
2375                        mtime_nanos: ActiveValue::set(mtime.nanos as i32),
2376                        is_symlink: ActiveValue::set(entry.is_symlink),
2377                        is_ignored: ActiveValue::set(entry.is_ignored),
2378                        is_deleted: ActiveValue::set(false),
2379                        scan_id: ActiveValue::set(update.scan_id as i64),
2380                    }
2381                }))
2382                .on_conflict(
2383                    OnConflict::columns([
2384                        worktree_entry::Column::ProjectId,
2385                        worktree_entry::Column::WorktreeId,
2386                        worktree_entry::Column::Id,
2387                    ])
2388                    .update_columns([
2389                        worktree_entry::Column::IsDir,
2390                        worktree_entry::Column::Path,
2391                        worktree_entry::Column::Inode,
2392                        worktree_entry::Column::MtimeSeconds,
2393                        worktree_entry::Column::MtimeNanos,
2394                        worktree_entry::Column::IsSymlink,
2395                        worktree_entry::Column::IsIgnored,
2396                        worktree_entry::Column::ScanId,
2397                    ])
2398                    .to_owned(),
2399                )
2400                .exec(&*tx)
2401                .await?;
2402            }
2403
2404            if !update.removed_entries.is_empty() {
2405                worktree_entry::Entity::update_many()
2406                    .filter(
2407                        worktree_entry::Column::ProjectId
2408                            .eq(project_id)
2409                            .and(worktree_entry::Column::WorktreeId.eq(worktree_id))
2410                            .and(
2411                                worktree_entry::Column::Id
2412                                    .is_in(update.removed_entries.iter().map(|id| *id as i64)),
2413                            ),
2414                    )
2415                    .set(worktree_entry::ActiveModel {
2416                        is_deleted: ActiveValue::Set(true),
2417                        scan_id: ActiveValue::Set(update.scan_id as i64),
2418                        ..Default::default()
2419                    })
2420                    .exec(&*tx)
2421                    .await?;
2422            }
2423
2424            if !update.updated_repositories.is_empty() {
2425                worktree_repository::Entity::insert_many(update.updated_repositories.iter().map(
2426                    |repository| worktree_repository::ActiveModel {
2427                        project_id: ActiveValue::set(project_id),
2428                        worktree_id: ActiveValue::set(worktree_id),
2429                        work_directory_id: ActiveValue::set(repository.work_directory_id as i64),
2430                        scan_id: ActiveValue::set(update.scan_id as i64),
2431                        branch: ActiveValue::set(repository.branch.clone()),
2432                        is_deleted: ActiveValue::set(false),
2433                    },
2434                ))
2435                .on_conflict(
2436                    OnConflict::columns([
2437                        worktree_repository::Column::ProjectId,
2438                        worktree_repository::Column::WorktreeId,
2439                        worktree_repository::Column::WorkDirectoryId,
2440                    ])
2441                    .update_columns([
2442                        worktree_repository::Column::ScanId,
2443                        worktree_repository::Column::Branch,
2444                    ])
2445                    .to_owned(),
2446                )
2447                .exec(&*tx)
2448                .await?;
2449
2450                for repository in update.updated_repositories.iter() {
2451                    if !repository.updated_statuses.is_empty() {
2452                        worktree_repository_statuses::Entity::insert_many(
2453                            repository.updated_statuses.iter().map(|status_entry| {
2454                                worktree_repository_statuses::ActiveModel {
2455                                    project_id: ActiveValue::set(project_id),
2456                                    worktree_id: ActiveValue::set(worktree_id),
2457                                    work_directory_id: ActiveValue::set(
2458                                        repository.work_directory_id as i64,
2459                                    ),
2460                                    repo_path: ActiveValue::set(status_entry.repo_path.clone()),
2461                                    status: ActiveValue::set(status_entry.status as i64),
2462                                    scan_id: ActiveValue::set(update.scan_id as i64),
2463                                    is_deleted: ActiveValue::set(false),
2464                                }
2465                            }),
2466                        )
2467                        .on_conflict(
2468                            OnConflict::columns([
2469                                worktree_repository_statuses::Column::ProjectId,
2470                                worktree_repository_statuses::Column::WorktreeId,
2471                                worktree_repository_statuses::Column::WorkDirectoryId,
2472                                worktree_repository_statuses::Column::RepoPath,
2473                            ])
2474                            .update_columns([
2475                                worktree_repository_statuses::Column::ScanId,
2476                                worktree_repository_statuses::Column::Status,
2477                                worktree_repository_statuses::Column::IsDeleted,
2478                            ])
2479                            .to_owned(),
2480                        )
2481                        .exec(&*tx)
2482                        .await?;
2483                    }
2484
2485                    if !repository.removed_repo_paths.is_empty() {
2486                        worktree_repository_statuses::Entity::update_many()
2487                            .filter(
2488                                worktree_repository_statuses::Column::ProjectId
2489                                    .eq(project_id)
2490                                    .and(
2491                                        worktree_repository_statuses::Column::WorktreeId
2492                                            .eq(worktree_id),
2493                                    )
2494                                    .and(
2495                                        worktree_repository_statuses::Column::WorkDirectoryId
2496                                            .eq(repository.work_directory_id as i64),
2497                                    )
2498                                    .and(worktree_repository_statuses::Column::RepoPath.is_in(
2499                                        repository.removed_repo_paths.iter().map(String::as_str),
2500                                    )),
2501                            )
2502                            .set(worktree_repository_statuses::ActiveModel {
2503                                is_deleted: ActiveValue::Set(true),
2504                                scan_id: ActiveValue::Set(update.scan_id as i64),
2505                                ..Default::default()
2506                            })
2507                            .exec(&*tx)
2508                            .await?;
2509                    }
2510                }
2511            }
2512
2513            if !update.removed_repositories.is_empty() {
2514                worktree_repository::Entity::update_many()
2515                    .filter(
2516                        worktree_repository::Column::ProjectId
2517                            .eq(project_id)
2518                            .and(worktree_repository::Column::WorktreeId.eq(worktree_id))
2519                            .and(
2520                                worktree_repository::Column::WorkDirectoryId
2521                                    .is_in(update.removed_repositories.iter().map(|id| *id as i64)),
2522                            ),
2523                    )
2524                    .set(worktree_repository::ActiveModel {
2525                        is_deleted: ActiveValue::Set(true),
2526                        scan_id: ActiveValue::Set(update.scan_id as i64),
2527                        ..Default::default()
2528                    })
2529                    .exec(&*tx)
2530                    .await?;
2531            }
2532
2533            let connection_ids = self.project_guest_connection_ids(project_id, &tx).await?;
2534            Ok(connection_ids)
2535        })
2536        .await
2537    }
2538
2539    pub async fn update_diagnostic_summary(
2540        &self,
2541        update: &proto::UpdateDiagnosticSummary,
2542        connection: ConnectionId,
2543    ) -> Result<RoomGuard<Vec<ConnectionId>>> {
2544        let project_id = ProjectId::from_proto(update.project_id);
2545        let worktree_id = update.worktree_id as i64;
2546        let room_id = self.room_id_for_project(project_id).await?;
2547        self.room_transaction(room_id, |tx| async move {
2548            let summary = update
2549                .summary
2550                .as_ref()
2551                .ok_or_else(|| anyhow!("invalid summary"))?;
2552
2553            // Ensure the update comes from the host.
2554            let project = project::Entity::find_by_id(project_id)
2555                .one(&*tx)
2556                .await?
2557                .ok_or_else(|| anyhow!("no such project"))?;
2558            if project.host_connection()? != connection {
2559                return Err(anyhow!("can't update a project hosted by someone else"))?;
2560            }
2561
2562            // Update summary.
2563            worktree_diagnostic_summary::Entity::insert(worktree_diagnostic_summary::ActiveModel {
2564                project_id: ActiveValue::set(project_id),
2565                worktree_id: ActiveValue::set(worktree_id),
2566                path: ActiveValue::set(summary.path.clone()),
2567                language_server_id: ActiveValue::set(summary.language_server_id as i64),
2568                error_count: ActiveValue::set(summary.error_count as i32),
2569                warning_count: ActiveValue::set(summary.warning_count as i32),
2570                ..Default::default()
2571            })
2572            .on_conflict(
2573                OnConflict::columns([
2574                    worktree_diagnostic_summary::Column::ProjectId,
2575                    worktree_diagnostic_summary::Column::WorktreeId,
2576                    worktree_diagnostic_summary::Column::Path,
2577                ])
2578                .update_columns([
2579                    worktree_diagnostic_summary::Column::LanguageServerId,
2580                    worktree_diagnostic_summary::Column::ErrorCount,
2581                    worktree_diagnostic_summary::Column::WarningCount,
2582                ])
2583                .to_owned(),
2584            )
2585            .exec(&*tx)
2586            .await?;
2587
2588            let connection_ids = self.project_guest_connection_ids(project_id, &tx).await?;
2589            Ok(connection_ids)
2590        })
2591        .await
2592    }
2593
2594    pub async fn start_language_server(
2595        &self,
2596        update: &proto::StartLanguageServer,
2597        connection: ConnectionId,
2598    ) -> Result<RoomGuard<Vec<ConnectionId>>> {
2599        let project_id = ProjectId::from_proto(update.project_id);
2600        let room_id = self.room_id_for_project(project_id).await?;
2601        self.room_transaction(room_id, |tx| async move {
2602            let server = update
2603                .server
2604                .as_ref()
2605                .ok_or_else(|| anyhow!("invalid language server"))?;
2606
2607            // Ensure the update comes from the host.
2608            let project = project::Entity::find_by_id(project_id)
2609                .one(&*tx)
2610                .await?
2611                .ok_or_else(|| anyhow!("no such project"))?;
2612            if project.host_connection()? != connection {
2613                return Err(anyhow!("can't update a project hosted by someone else"))?;
2614            }
2615
2616            // Add the newly-started language server.
2617            language_server::Entity::insert(language_server::ActiveModel {
2618                project_id: ActiveValue::set(project_id),
2619                id: ActiveValue::set(server.id as i64),
2620                name: ActiveValue::set(server.name.clone()),
2621                ..Default::default()
2622            })
2623            .on_conflict(
2624                OnConflict::columns([
2625                    language_server::Column::ProjectId,
2626                    language_server::Column::Id,
2627                ])
2628                .update_column(language_server::Column::Name)
2629                .to_owned(),
2630            )
2631            .exec(&*tx)
2632            .await?;
2633
2634            let connection_ids = self.project_guest_connection_ids(project_id, &tx).await?;
2635            Ok(connection_ids)
2636        })
2637        .await
2638    }
2639
2640    pub async fn join_project(
2641        &self,
2642        project_id: ProjectId,
2643        connection: ConnectionId,
2644    ) -> Result<RoomGuard<(Project, ReplicaId)>> {
2645        let room_id = self.room_id_for_project(project_id).await?;
2646        self.room_transaction(room_id, |tx| async move {
2647            let participant = room_participant::Entity::find()
2648                .filter(
2649                    Condition::all()
2650                        .add(
2651                            room_participant::Column::AnsweringConnectionId
2652                                .eq(connection.id as i32),
2653                        )
2654                        .add(
2655                            room_participant::Column::AnsweringConnectionServerId
2656                                .eq(connection.owner_id as i32),
2657                        ),
2658                )
2659                .one(&*tx)
2660                .await?
2661                .ok_or_else(|| anyhow!("must join a room first"))?;
2662
2663            let project = project::Entity::find_by_id(project_id)
2664                .one(&*tx)
2665                .await?
2666                .ok_or_else(|| anyhow!("no such project"))?;
2667            if project.room_id != participant.room_id {
2668                return Err(anyhow!("no such project"))?;
2669            }
2670
2671            let mut collaborators = project
2672                .find_related(project_collaborator::Entity)
2673                .all(&*tx)
2674                .await?;
2675            let replica_ids = collaborators
2676                .iter()
2677                .map(|c| c.replica_id)
2678                .collect::<HashSet<_>>();
2679            let mut replica_id = ReplicaId(1);
2680            while replica_ids.contains(&replica_id) {
2681                replica_id.0 += 1;
2682            }
2683            let new_collaborator = project_collaborator::ActiveModel {
2684                project_id: ActiveValue::set(project_id),
2685                connection_id: ActiveValue::set(connection.id as i32),
2686                connection_server_id: ActiveValue::set(ServerId(connection.owner_id as i32)),
2687                user_id: ActiveValue::set(participant.user_id),
2688                replica_id: ActiveValue::set(replica_id),
2689                is_host: ActiveValue::set(false),
2690                ..Default::default()
2691            }
2692            .insert(&*tx)
2693            .await?;
2694            collaborators.push(new_collaborator);
2695
2696            let db_worktrees = project.find_related(worktree::Entity).all(&*tx).await?;
2697            let mut worktrees = db_worktrees
2698                .into_iter()
2699                .map(|db_worktree| {
2700                    (
2701                        db_worktree.id as u64,
2702                        Worktree {
2703                            id: db_worktree.id as u64,
2704                            abs_path: db_worktree.abs_path,
2705                            root_name: db_worktree.root_name,
2706                            visible: db_worktree.visible,
2707                            entries: Default::default(),
2708                            repository_entries: Default::default(),
2709                            diagnostic_summaries: Default::default(),
2710                            scan_id: db_worktree.scan_id as u64,
2711                            completed_scan_id: db_worktree.completed_scan_id as u64,
2712                        },
2713                    )
2714                })
2715                .collect::<BTreeMap<_, _>>();
2716
2717            // Populate worktree entries.
2718            {
2719                let mut db_entries = worktree_entry::Entity::find()
2720                    .filter(
2721                        Condition::all()
2722                            .add(worktree_entry::Column::ProjectId.eq(project_id))
2723                            .add(worktree_entry::Column::IsDeleted.eq(false)),
2724                    )
2725                    .stream(&*tx)
2726                    .await?;
2727                while let Some(db_entry) = db_entries.next().await {
2728                    let db_entry = db_entry?;
2729                    if let Some(worktree) = worktrees.get_mut(&(db_entry.worktree_id as u64)) {
2730                        worktree.entries.push(proto::Entry {
2731                            id: db_entry.id as u64,
2732                            is_dir: db_entry.is_dir,
2733                            path: db_entry.path,
2734                            inode: db_entry.inode as u64,
2735                            mtime: Some(proto::Timestamp {
2736                                seconds: db_entry.mtime_seconds as u64,
2737                                nanos: db_entry.mtime_nanos as u32,
2738                            }),
2739                            is_symlink: db_entry.is_symlink,
2740                            is_ignored: db_entry.is_ignored,
2741                        });
2742                    }
2743                }
2744            }
2745
2746            // Populate repository entries.
2747            {
2748                let mut db_repository_entries = worktree_repository::Entity::find()
2749                    .filter(
2750                        Condition::all()
2751                            .add(worktree_repository::Column::ProjectId.eq(project_id))
2752                            .add(worktree_repository::Column::IsDeleted.eq(false)),
2753                    )
2754                    .stream(&*tx)
2755                    .await?;
2756                while let Some(db_repository_entry) = db_repository_entries.next().await {
2757                    let db_repository_entry = db_repository_entry?;
2758                    if let Some(worktree) =
2759                        worktrees.get_mut(&(db_repository_entry.worktree_id as u64))
2760                    {
2761                        worktree.repository_entries.insert(
2762                            db_repository_entry.work_directory_id as u64,
2763                            proto::RepositoryEntry {
2764                                work_directory_id: db_repository_entry.work_directory_id as u64,
2765                                branch: db_repository_entry.branch,
2766                                removed_repo_paths: Default::default(),
2767                                updated_statuses: Default::default(),
2768                            },
2769                        );
2770                    }
2771                }
2772            }
2773
2774            {
2775                let mut db_status_entries = worktree_repository_statuses::Entity::find()
2776                    .filter(
2777                        Condition::all()
2778                            .add(worktree_repository_statuses::Column::ProjectId.eq(project_id))
2779                            .add(worktree_repository_statuses::Column::IsDeleted.eq(false)),
2780                    )
2781                    .stream(&*tx)
2782                    .await?;
2783
2784                while let Some(db_status_entry) = db_status_entries.next().await {
2785                    let db_status_entry = db_status_entry?;
2786                    if let Some(worktree) = worktrees.get_mut(&(db_status_entry.worktree_id as u64))
2787                    {
2788                        if let Some(repository_entry) = worktree
2789                            .repository_entries
2790                            .get_mut(&(db_status_entry.work_directory_id as u64))
2791                        {
2792                            repository_entry.updated_statuses.push(proto::StatusEntry {
2793                                repo_path: db_status_entry.repo_path,
2794                                status: db_status_entry.status as i32,
2795                            });
2796                        }
2797                    }
2798                }
2799            }
2800
2801            // Populate worktree diagnostic summaries.
2802            {
2803                let mut db_summaries = worktree_diagnostic_summary::Entity::find()
2804                    .filter(worktree_diagnostic_summary::Column::ProjectId.eq(project_id))
2805                    .stream(&*tx)
2806                    .await?;
2807                while let Some(db_summary) = db_summaries.next().await {
2808                    let db_summary = db_summary?;
2809                    if let Some(worktree) = worktrees.get_mut(&(db_summary.worktree_id as u64)) {
2810                        worktree
2811                            .diagnostic_summaries
2812                            .push(proto::DiagnosticSummary {
2813                                path: db_summary.path,
2814                                language_server_id: db_summary.language_server_id as u64,
2815                                error_count: db_summary.error_count as u32,
2816                                warning_count: db_summary.warning_count as u32,
2817                            });
2818                    }
2819                }
2820            }
2821
2822            // Populate language servers.
2823            let language_servers = project
2824                .find_related(language_server::Entity)
2825                .all(&*tx)
2826                .await?;
2827
2828            let project = Project {
2829                collaborators: collaborators
2830                    .into_iter()
2831                    .map(|collaborator| ProjectCollaborator {
2832                        connection_id: collaborator.connection(),
2833                        user_id: collaborator.user_id,
2834                        replica_id: collaborator.replica_id,
2835                        is_host: collaborator.is_host,
2836                    })
2837                    .collect(),
2838                worktrees,
2839                language_servers: language_servers
2840                    .into_iter()
2841                    .map(|language_server| proto::LanguageServer {
2842                        id: language_server.id as u64,
2843                        name: language_server.name,
2844                    })
2845                    .collect(),
2846            };
2847            Ok((project, replica_id as ReplicaId))
2848        })
2849        .await
2850    }
2851
2852    pub async fn leave_project(
2853        &self,
2854        project_id: ProjectId,
2855        connection: ConnectionId,
2856    ) -> Result<RoomGuard<(proto::Room, LeftProject)>> {
2857        let room_id = self.room_id_for_project(project_id).await?;
2858        self.room_transaction(room_id, |tx| async move {
2859            let result = project_collaborator::Entity::delete_many()
2860                .filter(
2861                    Condition::all()
2862                        .add(project_collaborator::Column::ProjectId.eq(project_id))
2863                        .add(project_collaborator::Column::ConnectionId.eq(connection.id as i32))
2864                        .add(
2865                            project_collaborator::Column::ConnectionServerId
2866                                .eq(connection.owner_id as i32),
2867                        ),
2868                )
2869                .exec(&*tx)
2870                .await?;
2871            if result.rows_affected == 0 {
2872                Err(anyhow!("not a collaborator on this project"))?;
2873            }
2874
2875            let project = project::Entity::find_by_id(project_id)
2876                .one(&*tx)
2877                .await?
2878                .ok_or_else(|| anyhow!("no such project"))?;
2879            let collaborators = project
2880                .find_related(project_collaborator::Entity)
2881                .all(&*tx)
2882                .await?;
2883            let connection_ids = collaborators
2884                .into_iter()
2885                .map(|collaborator| collaborator.connection())
2886                .collect();
2887
2888            follower::Entity::delete_many()
2889                .filter(
2890                    Condition::any()
2891                        .add(
2892                            Condition::all()
2893                                .add(follower::Column::ProjectId.eq(project_id))
2894                                .add(
2895                                    follower::Column::LeaderConnectionServerId
2896                                        .eq(connection.owner_id),
2897                                )
2898                                .add(follower::Column::LeaderConnectionId.eq(connection.id)),
2899                        )
2900                        .add(
2901                            Condition::all()
2902                                .add(follower::Column::ProjectId.eq(project_id))
2903                                .add(
2904                                    follower::Column::FollowerConnectionServerId
2905                                        .eq(connection.owner_id),
2906                                )
2907                                .add(follower::Column::FollowerConnectionId.eq(connection.id)),
2908                        ),
2909                )
2910                .exec(&*tx)
2911                .await?;
2912
2913            let room = self.get_room(project.room_id, &tx).await?;
2914            let left_project = LeftProject {
2915                id: project_id,
2916                host_user_id: project.host_user_id,
2917                host_connection_id: project.host_connection()?,
2918                connection_ids,
2919            };
2920            Ok((room, left_project))
2921        })
2922        .await
2923    }
2924
2925    pub async fn project_collaborators(
2926        &self,
2927        project_id: ProjectId,
2928        connection_id: ConnectionId,
2929    ) -> Result<RoomGuard<Vec<ProjectCollaborator>>> {
2930        let room_id = self.room_id_for_project(project_id).await?;
2931        self.room_transaction(room_id, |tx| async move {
2932            let collaborators = project_collaborator::Entity::find()
2933                .filter(project_collaborator::Column::ProjectId.eq(project_id))
2934                .all(&*tx)
2935                .await?
2936                .into_iter()
2937                .map(|collaborator| ProjectCollaborator {
2938                    connection_id: collaborator.connection(),
2939                    user_id: collaborator.user_id,
2940                    replica_id: collaborator.replica_id,
2941                    is_host: collaborator.is_host,
2942                })
2943                .collect::<Vec<_>>();
2944
2945            if collaborators
2946                .iter()
2947                .any(|collaborator| collaborator.connection_id == connection_id)
2948            {
2949                Ok(collaborators)
2950            } else {
2951                Err(anyhow!("no such project"))?
2952            }
2953        })
2954        .await
2955    }
2956
2957    pub async fn project_connection_ids(
2958        &self,
2959        project_id: ProjectId,
2960        connection_id: ConnectionId,
2961    ) -> Result<RoomGuard<HashSet<ConnectionId>>> {
2962        let room_id = self.room_id_for_project(project_id).await?;
2963        self.room_transaction(room_id, |tx| async move {
2964            let mut collaborators = project_collaborator::Entity::find()
2965                .filter(project_collaborator::Column::ProjectId.eq(project_id))
2966                .stream(&*tx)
2967                .await?;
2968
2969            let mut connection_ids = HashSet::default();
2970            while let Some(collaborator) = collaborators.next().await {
2971                let collaborator = collaborator?;
2972                connection_ids.insert(collaborator.connection());
2973            }
2974
2975            if connection_ids.contains(&connection_id) {
2976                Ok(connection_ids)
2977            } else {
2978                Err(anyhow!("no such project"))?
2979            }
2980        })
2981        .await
2982    }
2983
2984    async fn project_guest_connection_ids(
2985        &self,
2986        project_id: ProjectId,
2987        tx: &DatabaseTransaction,
2988    ) -> Result<Vec<ConnectionId>> {
2989        let mut collaborators = project_collaborator::Entity::find()
2990            .filter(
2991                project_collaborator::Column::ProjectId
2992                    .eq(project_id)
2993                    .and(project_collaborator::Column::IsHost.eq(false)),
2994            )
2995            .stream(tx)
2996            .await?;
2997
2998        let mut guest_connection_ids = Vec::new();
2999        while let Some(collaborator) = collaborators.next().await {
3000            let collaborator = collaborator?;
3001            guest_connection_ids.push(collaborator.connection());
3002        }
3003        Ok(guest_connection_ids)
3004    }
3005
3006    async fn room_id_for_project(&self, project_id: ProjectId) -> Result<RoomId> {
3007        self.transaction(|tx| async move {
3008            let project = project::Entity::find_by_id(project_id)
3009                .one(&*tx)
3010                .await?
3011                .ok_or_else(|| anyhow!("project {} not found", project_id))?;
3012            Ok(project.room_id)
3013        })
3014        .await
3015    }
3016
3017    // access tokens
3018
3019    pub async fn create_access_token(
3020        &self,
3021        user_id: UserId,
3022        access_token_hash: &str,
3023        max_access_token_count: usize,
3024    ) -> Result<AccessTokenId> {
3025        self.transaction(|tx| async {
3026            let tx = tx;
3027
3028            let token = access_token::ActiveModel {
3029                user_id: ActiveValue::set(user_id),
3030                hash: ActiveValue::set(access_token_hash.into()),
3031                ..Default::default()
3032            }
3033            .insert(&*tx)
3034            .await?;
3035
3036            access_token::Entity::delete_many()
3037                .filter(
3038                    access_token::Column::Id.in_subquery(
3039                        Query::select()
3040                            .column(access_token::Column::Id)
3041                            .from(access_token::Entity)
3042                            .and_where(access_token::Column::UserId.eq(user_id))
3043                            .order_by(access_token::Column::Id, sea_orm::Order::Desc)
3044                            .limit(10000)
3045                            .offset(max_access_token_count as u64)
3046                            .to_owned(),
3047                    ),
3048                )
3049                .exec(&*tx)
3050                .await?;
3051            Ok(token.id)
3052        })
3053        .await
3054    }
3055
3056    pub async fn get_access_token(
3057        &self,
3058        access_token_id: AccessTokenId,
3059    ) -> Result<access_token::Model> {
3060        self.transaction(|tx| async move {
3061            Ok(access_token::Entity::find_by_id(access_token_id)
3062                .one(&*tx)
3063                .await?
3064                .ok_or_else(|| anyhow!("no such access token"))?)
3065        })
3066        .await
3067    }
3068
3069    async fn transaction<F, Fut, T>(&self, f: F) -> Result<T>
3070    where
3071        F: Send + Fn(TransactionHandle) -> Fut,
3072        Fut: Send + Future<Output = Result<T>>,
3073    {
3074        let body = async {
3075            let mut i = 0;
3076            loop {
3077                let (tx, result) = self.with_transaction(&f).await?;
3078                match result {
3079                    Ok(result) => match tx.commit().await.map_err(Into::into) {
3080                        Ok(()) => return Ok(result),
3081                        Err(error) => {
3082                            if !self.retry_on_serialization_error(&error, i).await {
3083                                return Err(error);
3084                            }
3085                        }
3086                    },
3087                    Err(error) => {
3088                        tx.rollback().await?;
3089                        if !self.retry_on_serialization_error(&error, i).await {
3090                            return Err(error);
3091                        }
3092                    }
3093                }
3094                i += 1;
3095            }
3096        };
3097
3098        self.run(body).await
3099    }
3100
3101    async fn optional_room_transaction<F, Fut, T>(&self, f: F) -> Result<Option<RoomGuard<T>>>
3102    where
3103        F: Send + Fn(TransactionHandle) -> Fut,
3104        Fut: Send + Future<Output = Result<Option<(RoomId, T)>>>,
3105    {
3106        let body = async {
3107            let mut i = 0;
3108            loop {
3109                let (tx, result) = self.with_transaction(&f).await?;
3110                match result {
3111                    Ok(Some((room_id, data))) => {
3112                        let lock = self.rooms.entry(room_id).or_default().clone();
3113                        let _guard = lock.lock_owned().await;
3114                        match tx.commit().await.map_err(Into::into) {
3115                            Ok(()) => {
3116                                return Ok(Some(RoomGuard {
3117                                    data,
3118                                    _guard,
3119                                    _not_send: PhantomData,
3120                                }));
3121                            }
3122                            Err(error) => {
3123                                if !self.retry_on_serialization_error(&error, i).await {
3124                                    return Err(error);
3125                                }
3126                            }
3127                        }
3128                    }
3129                    Ok(None) => match tx.commit().await.map_err(Into::into) {
3130                        Ok(()) => return Ok(None),
3131                        Err(error) => {
3132                            if !self.retry_on_serialization_error(&error, i).await {
3133                                return Err(error);
3134                            }
3135                        }
3136                    },
3137                    Err(error) => {
3138                        tx.rollback().await?;
3139                        if !self.retry_on_serialization_error(&error, i).await {
3140                            return Err(error);
3141                        }
3142                    }
3143                }
3144                i += 1;
3145            }
3146        };
3147
3148        self.run(body).await
3149    }
3150
3151    async fn room_transaction<F, Fut, T>(&self, room_id: RoomId, f: F) -> Result<RoomGuard<T>>
3152    where
3153        F: Send + Fn(TransactionHandle) -> Fut,
3154        Fut: Send + Future<Output = Result<T>>,
3155    {
3156        let body = async {
3157            let mut i = 0;
3158            loop {
3159                let lock = self.rooms.entry(room_id).or_default().clone();
3160                let _guard = lock.lock_owned().await;
3161                let (tx, result) = self.with_transaction(&f).await?;
3162                match result {
3163                    Ok(data) => match tx.commit().await.map_err(Into::into) {
3164                        Ok(()) => {
3165                            return Ok(RoomGuard {
3166                                data,
3167                                _guard,
3168                                _not_send: PhantomData,
3169                            });
3170                        }
3171                        Err(error) => {
3172                            if !self.retry_on_serialization_error(&error, i).await {
3173                                return Err(error);
3174                            }
3175                        }
3176                    },
3177                    Err(error) => {
3178                        tx.rollback().await?;
3179                        if !self.retry_on_serialization_error(&error, i).await {
3180                            return Err(error);
3181                        }
3182                    }
3183                }
3184                i += 1;
3185            }
3186        };
3187
3188        self.run(body).await
3189    }
3190
3191    async fn with_transaction<F, Fut, T>(&self, f: &F) -> Result<(DatabaseTransaction, Result<T>)>
3192    where
3193        F: Send + Fn(TransactionHandle) -> Fut,
3194        Fut: Send + Future<Output = Result<T>>,
3195    {
3196        let tx = self
3197            .pool
3198            .begin_with_config(Some(IsolationLevel::Serializable), None)
3199            .await?;
3200
3201        let mut tx = Arc::new(Some(tx));
3202        let result = f(TransactionHandle(tx.clone())).await;
3203        let Some(tx) = Arc::get_mut(&mut tx).and_then(|tx| tx.take()) else {
3204            return Err(anyhow!("couldn't complete transaction because it's still in use"))?;
3205        };
3206
3207        Ok((tx, result))
3208    }
3209
3210    async fn run<F, T>(&self, future: F) -> Result<T>
3211    where
3212        F: Future<Output = Result<T>>,
3213    {
3214        #[cfg(test)]
3215        {
3216            if let Executor::Deterministic(executor) = &self.executor {
3217                executor.simulate_random_delay().await;
3218            }
3219
3220            self.runtime.as_ref().unwrap().block_on(future)
3221        }
3222
3223        #[cfg(not(test))]
3224        {
3225            future.await
3226        }
3227    }
3228
3229    async fn retry_on_serialization_error(&self, error: &Error, prev_attempt_count: u32) -> bool {
3230        // If the error is due to a failure to serialize concurrent transactions, then retry
3231        // this transaction after a delay. With each subsequent retry, double the delay duration.
3232        // Also vary the delay randomly in order to ensure different database connections retry
3233        // at different times.
3234        if is_serialization_error(error) {
3235            let base_delay = 4_u64 << prev_attempt_count.min(16);
3236            let randomized_delay = base_delay as f32 * self.rng.lock().await.gen_range(0.5..=2.0);
3237            log::info!(
3238                "retrying transaction after serialization error. delay: {} ms.",
3239                randomized_delay
3240            );
3241            self.executor
3242                .sleep(Duration::from_millis(randomized_delay as u64))
3243                .await;
3244            true
3245        } else {
3246            false
3247        }
3248    }
3249}
3250
3251fn is_serialization_error(error: &Error) -> bool {
3252    const SERIALIZATION_FAILURE_CODE: &'static str = "40001";
3253    match error {
3254        Error::Database(
3255            DbErr::Exec(sea_orm::RuntimeErr::SqlxError(error))
3256            | DbErr::Query(sea_orm::RuntimeErr::SqlxError(error)),
3257        ) if error
3258            .as_database_error()
3259            .and_then(|error| error.code())
3260            .as_deref()
3261            == Some(SERIALIZATION_FAILURE_CODE) =>
3262        {
3263            true
3264        }
3265        _ => false,
3266    }
3267}
3268
3269struct TransactionHandle(Arc<Option<DatabaseTransaction>>);
3270
3271impl Deref for TransactionHandle {
3272    type Target = DatabaseTransaction;
3273
3274    fn deref(&self) -> &Self::Target {
3275        self.0.as_ref().as_ref().unwrap()
3276    }
3277}
3278
3279pub struct RoomGuard<T> {
3280    data: T,
3281    _guard: OwnedMutexGuard<()>,
3282    _not_send: PhantomData<Rc<()>>,
3283}
3284
3285impl<T> Deref for RoomGuard<T> {
3286    type Target = T;
3287
3288    fn deref(&self) -> &T {
3289        &self.data
3290    }
3291}
3292
3293impl<T> DerefMut for RoomGuard<T> {
3294    fn deref_mut(&mut self) -> &mut T {
3295        &mut self.data
3296    }
3297}
3298
3299#[derive(Debug, Serialize, Deserialize)]
3300pub struct NewUserParams {
3301    pub github_login: String,
3302    pub github_user_id: i32,
3303    pub invite_count: i32,
3304}
3305
3306#[derive(Debug)]
3307pub struct NewUserResult {
3308    pub user_id: UserId,
3309    pub metrics_id: String,
3310    pub inviting_user_id: Option<UserId>,
3311    pub signup_device_id: Option<String>,
3312}
3313
3314fn random_invite_code() -> String {
3315    nanoid::nanoid!(16)
3316}
3317
3318fn random_email_confirmation_code() -> String {
3319    nanoid::nanoid!(64)
3320}
3321
3322macro_rules! id_type {
3323    ($name:ident) => {
3324        #[derive(
3325            Clone,
3326            Copy,
3327            Debug,
3328            Default,
3329            PartialEq,
3330            Eq,
3331            PartialOrd,
3332            Ord,
3333            Hash,
3334            Serialize,
3335            Deserialize,
3336        )]
3337        #[serde(transparent)]
3338        pub struct $name(pub i32);
3339
3340        impl $name {
3341            #[allow(unused)]
3342            pub const MAX: Self = Self(i32::MAX);
3343
3344            #[allow(unused)]
3345            pub fn from_proto(value: u64) -> Self {
3346                Self(value as i32)
3347            }
3348
3349            #[allow(unused)]
3350            pub fn to_proto(self) -> u64 {
3351                self.0 as u64
3352            }
3353        }
3354
3355        impl std::fmt::Display for $name {
3356            fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
3357                self.0.fmt(f)
3358            }
3359        }
3360
3361        impl From<$name> for sea_query::Value {
3362            fn from(value: $name) -> Self {
3363                sea_query::Value::Int(Some(value.0))
3364            }
3365        }
3366
3367        impl sea_orm::TryGetable for $name {
3368            fn try_get(
3369                res: &sea_orm::QueryResult,
3370                pre: &str,
3371                col: &str,
3372            ) -> Result<Self, sea_orm::TryGetError> {
3373                Ok(Self(i32::try_get(res, pre, col)?))
3374            }
3375        }
3376
3377        impl sea_query::ValueType for $name {
3378            fn try_from(v: Value) -> Result<Self, sea_query::ValueTypeErr> {
3379                match v {
3380                    Value::TinyInt(Some(int)) => {
3381                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3382                    }
3383                    Value::SmallInt(Some(int)) => {
3384                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3385                    }
3386                    Value::Int(Some(int)) => {
3387                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3388                    }
3389                    Value::BigInt(Some(int)) => {
3390                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3391                    }
3392                    Value::TinyUnsigned(Some(int)) => {
3393                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3394                    }
3395                    Value::SmallUnsigned(Some(int)) => {
3396                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3397                    }
3398                    Value::Unsigned(Some(int)) => {
3399                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3400                    }
3401                    Value::BigUnsigned(Some(int)) => {
3402                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3403                    }
3404                    _ => Err(sea_query::ValueTypeErr),
3405                }
3406            }
3407
3408            fn type_name() -> String {
3409                stringify!($name).into()
3410            }
3411
3412            fn array_type() -> sea_query::ArrayType {
3413                sea_query::ArrayType::Int
3414            }
3415
3416            fn column_type() -> sea_query::ColumnType {
3417                sea_query::ColumnType::Integer(None)
3418            }
3419        }
3420
3421        impl sea_orm::TryFromU64 for $name {
3422            fn try_from_u64(n: u64) -> Result<Self, DbErr> {
3423                Ok(Self(n.try_into().map_err(|_| {
3424                    DbErr::ConvertFromU64(concat!(
3425                        "error converting ",
3426                        stringify!($name),
3427                        " to u64"
3428                    ))
3429                })?))
3430            }
3431        }
3432
3433        impl sea_query::Nullable for $name {
3434            fn null() -> Value {
3435                Value::Int(None)
3436            }
3437        }
3438    };
3439}
3440
3441id_type!(AccessTokenId);
3442id_type!(ContactId);
3443id_type!(FollowerId);
3444id_type!(RoomId);
3445id_type!(RoomParticipantId);
3446id_type!(ProjectId);
3447id_type!(ProjectCollaboratorId);
3448id_type!(ReplicaId);
3449id_type!(ServerId);
3450id_type!(SignupId);
3451id_type!(UserId);
3452
3453pub struct RejoinedRoom {
3454    pub room: proto::Room,
3455    pub rejoined_projects: Vec<RejoinedProject>,
3456    pub reshared_projects: Vec<ResharedProject>,
3457}
3458
3459pub struct ResharedProject {
3460    pub id: ProjectId,
3461    pub old_connection_id: ConnectionId,
3462    pub collaborators: Vec<ProjectCollaborator>,
3463    pub worktrees: Vec<proto::WorktreeMetadata>,
3464}
3465
3466pub struct RejoinedProject {
3467    pub id: ProjectId,
3468    pub old_connection_id: ConnectionId,
3469    pub collaborators: Vec<ProjectCollaborator>,
3470    pub worktrees: Vec<RejoinedWorktree>,
3471    pub language_servers: Vec<proto::LanguageServer>,
3472}
3473
3474#[derive(Debug)]
3475pub struct RejoinedWorktree {
3476    pub id: u64,
3477    pub abs_path: String,
3478    pub root_name: String,
3479    pub visible: bool,
3480    pub updated_entries: Vec<proto::Entry>,
3481    pub removed_entries: Vec<u64>,
3482    pub updated_repositories: Vec<proto::RepositoryEntry>,
3483    pub removed_repositories: Vec<u64>,
3484    pub diagnostic_summaries: Vec<proto::DiagnosticSummary>,
3485    pub scan_id: u64,
3486    pub completed_scan_id: u64,
3487}
3488
3489pub struct LeftRoom {
3490    pub room: proto::Room,
3491    pub left_projects: HashMap<ProjectId, LeftProject>,
3492    pub canceled_calls_to_user_ids: Vec<UserId>,
3493}
3494
3495pub struct RefreshedRoom {
3496    pub room: proto::Room,
3497    pub stale_participant_user_ids: Vec<UserId>,
3498    pub canceled_calls_to_user_ids: Vec<UserId>,
3499}
3500
3501pub struct Project {
3502    pub collaborators: Vec<ProjectCollaborator>,
3503    pub worktrees: BTreeMap<u64, Worktree>,
3504    pub language_servers: Vec<proto::LanguageServer>,
3505}
3506
3507pub struct ProjectCollaborator {
3508    pub connection_id: ConnectionId,
3509    pub user_id: UserId,
3510    pub replica_id: ReplicaId,
3511    pub is_host: bool,
3512}
3513
3514impl ProjectCollaborator {
3515    pub fn to_proto(&self) -> proto::Collaborator {
3516        proto::Collaborator {
3517            peer_id: Some(self.connection_id.into()),
3518            replica_id: self.replica_id.0 as u32,
3519            user_id: self.user_id.to_proto(),
3520        }
3521    }
3522}
3523
3524#[derive(Debug)]
3525pub struct LeftProject {
3526    pub id: ProjectId,
3527    pub host_user_id: UserId,
3528    pub host_connection_id: ConnectionId,
3529    pub connection_ids: Vec<ConnectionId>,
3530}
3531
3532pub struct Worktree {
3533    pub id: u64,
3534    pub abs_path: String,
3535    pub root_name: String,
3536    pub visible: bool,
3537    pub entries: Vec<proto::Entry>,
3538    pub repository_entries: BTreeMap<u64, proto::RepositoryEntry>,
3539    pub diagnostic_summaries: Vec<proto::DiagnosticSummary>,
3540    pub scan_id: u64,
3541    pub completed_scan_id: u64,
3542}
3543
3544#[cfg(test)]
3545pub use test::*;
3546
3547#[cfg(test)]
3548mod test {
3549    use super::*;
3550    use gpui::executor::Background;
3551    use lazy_static::lazy_static;
3552    use parking_lot::Mutex;
3553    use sea_orm::ConnectionTrait;
3554    use sqlx::migrate::MigrateDatabase;
3555    use std::sync::Arc;
3556
3557    pub struct TestDb {
3558        pub db: Option<Arc<Database>>,
3559        pub connection: Option<sqlx::AnyConnection>,
3560    }
3561
3562    impl TestDb {
3563        pub fn sqlite(background: Arc<Background>) -> Self {
3564            let url = format!("sqlite::memory:");
3565            let runtime = tokio::runtime::Builder::new_current_thread()
3566                .enable_io()
3567                .enable_time()
3568                .build()
3569                .unwrap();
3570
3571            let mut db = runtime.block_on(async {
3572                let mut options = ConnectOptions::new(url);
3573                options.max_connections(5);
3574                let db = Database::new(options, Executor::Deterministic(background))
3575                    .await
3576                    .unwrap();
3577                let sql = include_str!(concat!(
3578                    env!("CARGO_MANIFEST_DIR"),
3579                    "/migrations.sqlite/20221109000000_test_schema.sql"
3580                ));
3581                db.pool
3582                    .execute(sea_orm::Statement::from_string(
3583                        db.pool.get_database_backend(),
3584                        sql.into(),
3585                    ))
3586                    .await
3587                    .unwrap();
3588                db
3589            });
3590
3591            db.runtime = Some(runtime);
3592
3593            Self {
3594                db: Some(Arc::new(db)),
3595                connection: None,
3596            }
3597        }
3598
3599        pub fn postgres(background: Arc<Background>) -> Self {
3600            lazy_static! {
3601                static ref LOCK: Mutex<()> = Mutex::new(());
3602            }
3603
3604            let _guard = LOCK.lock();
3605            let mut rng = StdRng::from_entropy();
3606            let url = format!(
3607                "postgres://postgres@localhost/zed-test-{}",
3608                rng.gen::<u128>()
3609            );
3610            let runtime = tokio::runtime::Builder::new_current_thread()
3611                .enable_io()
3612                .enable_time()
3613                .build()
3614                .unwrap();
3615
3616            let mut db = runtime.block_on(async {
3617                sqlx::Postgres::create_database(&url)
3618                    .await
3619                    .expect("failed to create test db");
3620                let mut options = ConnectOptions::new(url);
3621                options
3622                    .max_connections(5)
3623                    .idle_timeout(Duration::from_secs(0));
3624                let db = Database::new(options, Executor::Deterministic(background))
3625                    .await
3626                    .unwrap();
3627                let migrations_path = concat!(env!("CARGO_MANIFEST_DIR"), "/migrations");
3628                db.migrate(Path::new(migrations_path), false).await.unwrap();
3629                db
3630            });
3631
3632            db.runtime = Some(runtime);
3633
3634            Self {
3635                db: Some(Arc::new(db)),
3636                connection: None,
3637            }
3638        }
3639
3640        pub fn db(&self) -> &Arc<Database> {
3641            self.db.as_ref().unwrap()
3642        }
3643    }
3644
3645    impl Drop for TestDb {
3646        fn drop(&mut self) {
3647            let db = self.db.take().unwrap();
3648            if let sea_orm::DatabaseBackend::Postgres = db.pool.get_database_backend() {
3649                db.runtime.as_ref().unwrap().block_on(async {
3650                    use util::ResultExt;
3651                    let query = "
3652                        SELECT pg_terminate_backend(pg_stat_activity.pid)
3653                        FROM pg_stat_activity
3654                        WHERE
3655                            pg_stat_activity.datname = current_database() AND
3656                            pid <> pg_backend_pid();
3657                    ";
3658                    db.pool
3659                        .execute(sea_orm::Statement::from_string(
3660                            db.pool.get_database_backend(),
3661                            query.into(),
3662                        ))
3663                        .await
3664                        .log_err();
3665                    sqlx::Postgres::drop_database(db.options.get_url())
3666                        .await
3667                        .log_err();
3668                })
3669            }
3670        }
3671    }
3672}