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::WorktreeId.eq(worktree.id))
1518                                    .add(entry_filter),
1519                            )
1520                            .stream(&*tx)
1521                            .await?;
1522
1523                        while let Some(db_entry) = db_entries.next().await {
1524                            let db_entry = db_entry?;
1525                            if db_entry.is_deleted {
1526                                worktree.removed_entries.push(db_entry.id as u64);
1527                            } else {
1528                                worktree.updated_entries.push(proto::Entry {
1529                                    id: db_entry.id as u64,
1530                                    is_dir: db_entry.is_dir,
1531                                    path: db_entry.path,
1532                                    inode: db_entry.inode as u64,
1533                                    mtime: Some(proto::Timestamp {
1534                                        seconds: db_entry.mtime_seconds as u64,
1535                                        nanos: db_entry.mtime_nanos as u32,
1536                                    }),
1537                                    is_symlink: db_entry.is_symlink,
1538                                    is_ignored: db_entry.is_ignored,
1539                                });
1540                            }
1541                        }
1542                    }
1543
1544                    // Repository Entries
1545                    {
1546                        let repository_entry_filter =
1547                            if let Some(rejoined_worktree) = rejoined_worktree {
1548                                worktree_repository::Column::ScanId.gt(rejoined_worktree.scan_id)
1549                            } else {
1550                                worktree_repository::Column::IsDeleted.eq(false)
1551                            };
1552
1553                        let mut db_repositories = worktree_repository::Entity::find()
1554                            .filter(
1555                                Condition::all()
1556                                    .add(worktree_repository::Column::WorktreeId.eq(worktree.id))
1557                                    .add(repository_entry_filter),
1558                            )
1559                            .stream(&*tx)
1560                            .await?;
1561
1562                        while let Some(db_repository) = db_repositories.next().await {
1563                            let db_repository = db_repository?;
1564                            if db_repository.is_deleted {
1565                                worktree
1566                                    .removed_repositories
1567                                    .push(db_repository.work_directory_id as u64);
1568                            } else {
1569                                worktree.updated_repositories.push(proto::RepositoryEntry {
1570                                    work_directory_id: db_repository.work_directory_id as u64,
1571                                    branch: db_repository.branch,
1572                                    removed_worktree_repo_paths: Default::default(),
1573                                    updated_worktree_statuses: Default::default(),
1574                                });
1575                            }
1576                        }
1577                    }
1578
1579                    worktrees.push(worktree);
1580                }
1581
1582                let language_servers = project
1583                    .find_related(language_server::Entity)
1584                    .all(&*tx)
1585                    .await?
1586                    .into_iter()
1587                    .map(|language_server| proto::LanguageServer {
1588                        id: language_server.id as u64,
1589                        name: language_server.name,
1590                    })
1591                    .collect::<Vec<_>>();
1592
1593                let mut collaborators = project
1594                    .find_related(project_collaborator::Entity)
1595                    .all(&*tx)
1596                    .await?;
1597                let self_collaborator = if let Some(self_collaborator_ix) = collaborators
1598                    .iter()
1599                    .position(|collaborator| collaborator.user_id == user_id)
1600                {
1601                    collaborators.swap_remove(self_collaborator_ix)
1602                } else {
1603                    continue;
1604                };
1605                let old_connection_id = self_collaborator.connection();
1606                project_collaborator::Entity::update(project_collaborator::ActiveModel {
1607                    connection_id: ActiveValue::set(connection.id as i32),
1608                    connection_server_id: ActiveValue::set(ServerId(connection.owner_id as i32)),
1609                    ..self_collaborator.into_active_model()
1610                })
1611                .exec(&*tx)
1612                .await?;
1613
1614                let collaborators = collaborators
1615                    .into_iter()
1616                    .map(|collaborator| ProjectCollaborator {
1617                        connection_id: collaborator.connection(),
1618                        user_id: collaborator.user_id,
1619                        replica_id: collaborator.replica_id,
1620                        is_host: collaborator.is_host,
1621                    })
1622                    .collect::<Vec<_>>();
1623
1624                rejoined_projects.push(RejoinedProject {
1625                    id: project_id,
1626                    old_connection_id,
1627                    collaborators,
1628                    worktrees,
1629                    language_servers,
1630                });
1631            }
1632
1633            let room = self.get_room(room_id, &tx).await?;
1634            Ok(RejoinedRoom {
1635                room,
1636                rejoined_projects,
1637                reshared_projects,
1638            })
1639        })
1640        .await
1641    }
1642
1643    pub async fn leave_room(
1644        &self,
1645        connection: ConnectionId,
1646    ) -> Result<Option<RoomGuard<LeftRoom>>> {
1647        self.optional_room_transaction(|tx| async move {
1648            let leaving_participant = room_participant::Entity::find()
1649                .filter(
1650                    Condition::all()
1651                        .add(
1652                            room_participant::Column::AnsweringConnectionId
1653                                .eq(connection.id as i32),
1654                        )
1655                        .add(
1656                            room_participant::Column::AnsweringConnectionServerId
1657                                .eq(connection.owner_id as i32),
1658                        ),
1659                )
1660                .one(&*tx)
1661                .await?;
1662
1663            if let Some(leaving_participant) = leaving_participant {
1664                // Leave room.
1665                let room_id = leaving_participant.room_id;
1666                room_participant::Entity::delete_by_id(leaving_participant.id)
1667                    .exec(&*tx)
1668                    .await?;
1669
1670                // Cancel pending calls initiated by the leaving user.
1671                let called_participants = room_participant::Entity::find()
1672                    .filter(
1673                        Condition::all()
1674                            .add(
1675                                room_participant::Column::CallingUserId
1676                                    .eq(leaving_participant.user_id),
1677                            )
1678                            .add(room_participant::Column::AnsweringConnectionId.is_null()),
1679                    )
1680                    .all(&*tx)
1681                    .await?;
1682                room_participant::Entity::delete_many()
1683                    .filter(
1684                        room_participant::Column::Id
1685                            .is_in(called_participants.iter().map(|participant| participant.id)),
1686                    )
1687                    .exec(&*tx)
1688                    .await?;
1689                let canceled_calls_to_user_ids = called_participants
1690                    .into_iter()
1691                    .map(|participant| participant.user_id)
1692                    .collect();
1693
1694                // Detect left projects.
1695                #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
1696                enum QueryProjectIds {
1697                    ProjectId,
1698                }
1699                let project_ids: Vec<ProjectId> = project_collaborator::Entity::find()
1700                    .select_only()
1701                    .column_as(
1702                        project_collaborator::Column::ProjectId,
1703                        QueryProjectIds::ProjectId,
1704                    )
1705                    .filter(
1706                        Condition::all()
1707                            .add(
1708                                project_collaborator::Column::ConnectionId.eq(connection.id as i32),
1709                            )
1710                            .add(
1711                                project_collaborator::Column::ConnectionServerId
1712                                    .eq(connection.owner_id as i32),
1713                            ),
1714                    )
1715                    .into_values::<_, QueryProjectIds>()
1716                    .all(&*tx)
1717                    .await?;
1718                let mut left_projects = HashMap::default();
1719                let mut collaborators = project_collaborator::Entity::find()
1720                    .filter(project_collaborator::Column::ProjectId.is_in(project_ids))
1721                    .stream(&*tx)
1722                    .await?;
1723                while let Some(collaborator) = collaborators.next().await {
1724                    let collaborator = collaborator?;
1725                    let left_project =
1726                        left_projects
1727                            .entry(collaborator.project_id)
1728                            .or_insert(LeftProject {
1729                                id: collaborator.project_id,
1730                                host_user_id: Default::default(),
1731                                connection_ids: Default::default(),
1732                                host_connection_id: Default::default(),
1733                            });
1734
1735                    let collaborator_connection_id = collaborator.connection();
1736                    if collaborator_connection_id != connection {
1737                        left_project.connection_ids.push(collaborator_connection_id);
1738                    }
1739
1740                    if collaborator.is_host {
1741                        left_project.host_user_id = collaborator.user_id;
1742                        left_project.host_connection_id = collaborator_connection_id;
1743                    }
1744                }
1745                drop(collaborators);
1746
1747                // Leave projects.
1748                project_collaborator::Entity::delete_many()
1749                    .filter(
1750                        Condition::all()
1751                            .add(
1752                                project_collaborator::Column::ConnectionId.eq(connection.id as i32),
1753                            )
1754                            .add(
1755                                project_collaborator::Column::ConnectionServerId
1756                                    .eq(connection.owner_id as i32),
1757                            ),
1758                    )
1759                    .exec(&*tx)
1760                    .await?;
1761
1762                // Unshare projects.
1763                project::Entity::delete_many()
1764                    .filter(
1765                        Condition::all()
1766                            .add(project::Column::RoomId.eq(room_id))
1767                            .add(project::Column::HostConnectionId.eq(connection.id as i32))
1768                            .add(
1769                                project::Column::HostConnectionServerId
1770                                    .eq(connection.owner_id as i32),
1771                            ),
1772                    )
1773                    .exec(&*tx)
1774                    .await?;
1775
1776                let room = self.get_room(room_id, &tx).await?;
1777                if room.participants.is_empty() {
1778                    room::Entity::delete_by_id(room_id).exec(&*tx).await?;
1779                }
1780
1781                let left_room = LeftRoom {
1782                    room,
1783                    left_projects,
1784                    canceled_calls_to_user_ids,
1785                };
1786
1787                if left_room.room.participants.is_empty() {
1788                    self.rooms.remove(&room_id);
1789                }
1790
1791                Ok(Some((room_id, left_room)))
1792            } else {
1793                Ok(None)
1794            }
1795        })
1796        .await
1797    }
1798
1799    pub async fn follow(
1800        &self,
1801        project_id: ProjectId,
1802        leader_connection: ConnectionId,
1803        follower_connection: ConnectionId,
1804    ) -> Result<RoomGuard<proto::Room>> {
1805        let room_id = self.room_id_for_project(project_id).await?;
1806        self.room_transaction(room_id, |tx| async move {
1807            follower::ActiveModel {
1808                room_id: ActiveValue::set(room_id),
1809                project_id: ActiveValue::set(project_id),
1810                leader_connection_server_id: ActiveValue::set(ServerId(
1811                    leader_connection.owner_id as i32,
1812                )),
1813                leader_connection_id: ActiveValue::set(leader_connection.id as i32),
1814                follower_connection_server_id: ActiveValue::set(ServerId(
1815                    follower_connection.owner_id as i32,
1816                )),
1817                follower_connection_id: ActiveValue::set(follower_connection.id as i32),
1818                ..Default::default()
1819            }
1820            .insert(&*tx)
1821            .await?;
1822
1823            let room = self.get_room(room_id, &*tx).await?;
1824            Ok(room)
1825        })
1826        .await
1827    }
1828
1829    pub async fn unfollow(
1830        &self,
1831        project_id: ProjectId,
1832        leader_connection: ConnectionId,
1833        follower_connection: ConnectionId,
1834    ) -> Result<RoomGuard<proto::Room>> {
1835        let room_id = self.room_id_for_project(project_id).await?;
1836        self.room_transaction(room_id, |tx| async move {
1837            follower::Entity::delete_many()
1838                .filter(
1839                    Condition::all()
1840                        .add(follower::Column::ProjectId.eq(project_id))
1841                        .add(
1842                            follower::Column::LeaderConnectionServerId
1843                                .eq(leader_connection.owner_id),
1844                        )
1845                        .add(follower::Column::LeaderConnectionId.eq(leader_connection.id))
1846                        .add(
1847                            follower::Column::FollowerConnectionServerId
1848                                .eq(follower_connection.owner_id),
1849                        )
1850                        .add(follower::Column::FollowerConnectionId.eq(follower_connection.id)),
1851                )
1852                .exec(&*tx)
1853                .await?;
1854
1855            let room = self.get_room(room_id, &*tx).await?;
1856            Ok(room)
1857        })
1858        .await
1859    }
1860
1861    pub async fn update_room_participant_location(
1862        &self,
1863        room_id: RoomId,
1864        connection: ConnectionId,
1865        location: proto::ParticipantLocation,
1866    ) -> Result<RoomGuard<proto::Room>> {
1867        self.room_transaction(room_id, |tx| async {
1868            let tx = tx;
1869            let location_kind;
1870            let location_project_id;
1871            match location
1872                .variant
1873                .as_ref()
1874                .ok_or_else(|| anyhow!("invalid location"))?
1875            {
1876                proto::participant_location::Variant::SharedProject(project) => {
1877                    location_kind = 0;
1878                    location_project_id = Some(ProjectId::from_proto(project.id));
1879                }
1880                proto::participant_location::Variant::UnsharedProject(_) => {
1881                    location_kind = 1;
1882                    location_project_id = None;
1883                }
1884                proto::participant_location::Variant::External(_) => {
1885                    location_kind = 2;
1886                    location_project_id = None;
1887                }
1888            }
1889
1890            let result = room_participant::Entity::update_many()
1891                .filter(
1892                    Condition::all()
1893                        .add(room_participant::Column::RoomId.eq(room_id))
1894                        .add(
1895                            room_participant::Column::AnsweringConnectionId
1896                                .eq(connection.id as i32),
1897                        )
1898                        .add(
1899                            room_participant::Column::AnsweringConnectionServerId
1900                                .eq(connection.owner_id as i32),
1901                        ),
1902                )
1903                .set(room_participant::ActiveModel {
1904                    location_kind: ActiveValue::set(Some(location_kind)),
1905                    location_project_id: ActiveValue::set(location_project_id),
1906                    ..Default::default()
1907                })
1908                .exec(&*tx)
1909                .await?;
1910
1911            if result.rows_affected == 1 {
1912                let room = self.get_room(room_id, &tx).await?;
1913                Ok(room)
1914            } else {
1915                Err(anyhow!("could not update room participant location"))?
1916            }
1917        })
1918        .await
1919    }
1920
1921    pub async fn connection_lost(&self, connection: ConnectionId) -> Result<()> {
1922        self.transaction(|tx| async move {
1923            let participant = room_participant::Entity::find()
1924                .filter(
1925                    Condition::all()
1926                        .add(
1927                            room_participant::Column::AnsweringConnectionId
1928                                .eq(connection.id as i32),
1929                        )
1930                        .add(
1931                            room_participant::Column::AnsweringConnectionServerId
1932                                .eq(connection.owner_id as i32),
1933                        ),
1934                )
1935                .one(&*tx)
1936                .await?
1937                .ok_or_else(|| anyhow!("not a participant in any room"))?;
1938
1939            room_participant::Entity::update(room_participant::ActiveModel {
1940                answering_connection_lost: ActiveValue::set(true),
1941                ..participant.into_active_model()
1942            })
1943            .exec(&*tx)
1944            .await?;
1945
1946            Ok(())
1947        })
1948        .await
1949    }
1950
1951    fn build_incoming_call(
1952        room: &proto::Room,
1953        called_user_id: UserId,
1954    ) -> Option<proto::IncomingCall> {
1955        let pending_participant = room
1956            .pending_participants
1957            .iter()
1958            .find(|participant| participant.user_id == called_user_id.to_proto())?;
1959
1960        Some(proto::IncomingCall {
1961            room_id: room.id,
1962            calling_user_id: pending_participant.calling_user_id,
1963            participant_user_ids: room
1964                .participants
1965                .iter()
1966                .map(|participant| participant.user_id)
1967                .collect(),
1968            initial_project: room.participants.iter().find_map(|participant| {
1969                let initial_project_id = pending_participant.initial_project_id?;
1970                participant
1971                    .projects
1972                    .iter()
1973                    .find(|project| project.id == initial_project_id)
1974                    .cloned()
1975            }),
1976        })
1977    }
1978
1979    async fn get_room(&self, room_id: RoomId, tx: &DatabaseTransaction) -> Result<proto::Room> {
1980        let db_room = room::Entity::find_by_id(room_id)
1981            .one(tx)
1982            .await?
1983            .ok_or_else(|| anyhow!("could not find room"))?;
1984
1985        let mut db_participants = db_room
1986            .find_related(room_participant::Entity)
1987            .stream(tx)
1988            .await?;
1989        let mut participants = HashMap::default();
1990        let mut pending_participants = Vec::new();
1991        while let Some(db_participant) = db_participants.next().await {
1992            let db_participant = db_participant?;
1993            if let Some((answering_connection_id, answering_connection_server_id)) = db_participant
1994                .answering_connection_id
1995                .zip(db_participant.answering_connection_server_id)
1996            {
1997                let location = match (
1998                    db_participant.location_kind,
1999                    db_participant.location_project_id,
2000                ) {
2001                    (Some(0), Some(project_id)) => {
2002                        Some(proto::participant_location::Variant::SharedProject(
2003                            proto::participant_location::SharedProject {
2004                                id: project_id.to_proto(),
2005                            },
2006                        ))
2007                    }
2008                    (Some(1), _) => Some(proto::participant_location::Variant::UnsharedProject(
2009                        Default::default(),
2010                    )),
2011                    _ => Some(proto::participant_location::Variant::External(
2012                        Default::default(),
2013                    )),
2014                };
2015
2016                let answering_connection = ConnectionId {
2017                    owner_id: answering_connection_server_id.0 as u32,
2018                    id: answering_connection_id as u32,
2019                };
2020                participants.insert(
2021                    answering_connection,
2022                    proto::Participant {
2023                        user_id: db_participant.user_id.to_proto(),
2024                        peer_id: Some(answering_connection.into()),
2025                        projects: Default::default(),
2026                        location: Some(proto::ParticipantLocation { variant: location }),
2027                    },
2028                );
2029            } else {
2030                pending_participants.push(proto::PendingParticipant {
2031                    user_id: db_participant.user_id.to_proto(),
2032                    calling_user_id: db_participant.calling_user_id.to_proto(),
2033                    initial_project_id: db_participant.initial_project_id.map(|id| id.to_proto()),
2034                });
2035            }
2036        }
2037        drop(db_participants);
2038
2039        let mut db_projects = db_room
2040            .find_related(project::Entity)
2041            .find_with_related(worktree::Entity)
2042            .stream(tx)
2043            .await?;
2044
2045        while let Some(row) = db_projects.next().await {
2046            let (db_project, db_worktree) = row?;
2047            let host_connection = db_project.host_connection()?;
2048            if let Some(participant) = participants.get_mut(&host_connection) {
2049                let project = if let Some(project) = participant
2050                    .projects
2051                    .iter_mut()
2052                    .find(|project| project.id == db_project.id.to_proto())
2053                {
2054                    project
2055                } else {
2056                    participant.projects.push(proto::ParticipantProject {
2057                        id: db_project.id.to_proto(),
2058                        worktree_root_names: Default::default(),
2059                    });
2060                    participant.projects.last_mut().unwrap()
2061                };
2062
2063                if let Some(db_worktree) = db_worktree {
2064                    if db_worktree.visible {
2065                        project.worktree_root_names.push(db_worktree.root_name);
2066                    }
2067                }
2068            }
2069        }
2070        drop(db_projects);
2071
2072        let mut db_followers = db_room.find_related(follower::Entity).stream(tx).await?;
2073        let mut followers = Vec::new();
2074        while let Some(db_follower) = db_followers.next().await {
2075            let db_follower = db_follower?;
2076            followers.push(proto::Follower {
2077                leader_id: Some(db_follower.leader_connection().into()),
2078                follower_id: Some(db_follower.follower_connection().into()),
2079                project_id: db_follower.project_id.to_proto(),
2080            });
2081        }
2082
2083        Ok(proto::Room {
2084            id: db_room.id.to_proto(),
2085            live_kit_room: db_room.live_kit_room,
2086            participants: participants.into_values().collect(),
2087            pending_participants,
2088            followers,
2089        })
2090    }
2091
2092    // projects
2093
2094    pub async fn project_count_excluding_admins(&self) -> Result<usize> {
2095        #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
2096        enum QueryAs {
2097            Count,
2098        }
2099
2100        self.transaction(|tx| async move {
2101            Ok(project::Entity::find()
2102                .select_only()
2103                .column_as(project::Column::Id.count(), QueryAs::Count)
2104                .inner_join(user::Entity)
2105                .filter(user::Column::Admin.eq(false))
2106                .into_values::<_, QueryAs>()
2107                .one(&*tx)
2108                .await?
2109                .unwrap_or(0i64) as usize)
2110        })
2111        .await
2112    }
2113
2114    pub async fn share_project(
2115        &self,
2116        room_id: RoomId,
2117        connection: ConnectionId,
2118        worktrees: &[proto::WorktreeMetadata],
2119    ) -> Result<RoomGuard<(ProjectId, proto::Room)>> {
2120        self.room_transaction(room_id, |tx| async move {
2121            let participant = room_participant::Entity::find()
2122                .filter(
2123                    Condition::all()
2124                        .add(
2125                            room_participant::Column::AnsweringConnectionId
2126                                .eq(connection.id as i32),
2127                        )
2128                        .add(
2129                            room_participant::Column::AnsweringConnectionServerId
2130                                .eq(connection.owner_id as i32),
2131                        ),
2132                )
2133                .one(&*tx)
2134                .await?
2135                .ok_or_else(|| anyhow!("could not find participant"))?;
2136            if participant.room_id != room_id {
2137                return Err(anyhow!("shared project on unexpected room"))?;
2138            }
2139
2140            let project = project::ActiveModel {
2141                room_id: ActiveValue::set(participant.room_id),
2142                host_user_id: ActiveValue::set(participant.user_id),
2143                host_connection_id: ActiveValue::set(Some(connection.id as i32)),
2144                host_connection_server_id: ActiveValue::set(Some(ServerId(
2145                    connection.owner_id as i32,
2146                ))),
2147                ..Default::default()
2148            }
2149            .insert(&*tx)
2150            .await?;
2151
2152            if !worktrees.is_empty() {
2153                worktree::Entity::insert_many(worktrees.iter().map(|worktree| {
2154                    worktree::ActiveModel {
2155                        id: ActiveValue::set(worktree.id as i64),
2156                        project_id: ActiveValue::set(project.id),
2157                        abs_path: ActiveValue::set(worktree.abs_path.clone()),
2158                        root_name: ActiveValue::set(worktree.root_name.clone()),
2159                        visible: ActiveValue::set(worktree.visible),
2160                        scan_id: ActiveValue::set(0),
2161                        completed_scan_id: ActiveValue::set(0),
2162                    }
2163                }))
2164                .exec(&*tx)
2165                .await?;
2166            }
2167
2168            project_collaborator::ActiveModel {
2169                project_id: ActiveValue::set(project.id),
2170                connection_id: ActiveValue::set(connection.id as i32),
2171                connection_server_id: ActiveValue::set(ServerId(connection.owner_id as i32)),
2172                user_id: ActiveValue::set(participant.user_id),
2173                replica_id: ActiveValue::set(ReplicaId(0)),
2174                is_host: ActiveValue::set(true),
2175                ..Default::default()
2176            }
2177            .insert(&*tx)
2178            .await?;
2179
2180            let room = self.get_room(room_id, &tx).await?;
2181            Ok((project.id, room))
2182        })
2183        .await
2184    }
2185
2186    pub async fn unshare_project(
2187        &self,
2188        project_id: ProjectId,
2189        connection: ConnectionId,
2190    ) -> Result<RoomGuard<(proto::Room, Vec<ConnectionId>)>> {
2191        let room_id = self.room_id_for_project(project_id).await?;
2192        self.room_transaction(room_id, |tx| async move {
2193            let guest_connection_ids = self.project_guest_connection_ids(project_id, &tx).await?;
2194
2195            let project = project::Entity::find_by_id(project_id)
2196                .one(&*tx)
2197                .await?
2198                .ok_or_else(|| anyhow!("project not found"))?;
2199            if project.host_connection()? == connection {
2200                project::Entity::delete(project.into_active_model())
2201                    .exec(&*tx)
2202                    .await?;
2203                let room = self.get_room(room_id, &tx).await?;
2204                Ok((room, guest_connection_ids))
2205            } else {
2206                Err(anyhow!("cannot unshare a project hosted by another user"))?
2207            }
2208        })
2209        .await
2210    }
2211
2212    pub async fn update_project(
2213        &self,
2214        project_id: ProjectId,
2215        connection: ConnectionId,
2216        worktrees: &[proto::WorktreeMetadata],
2217    ) -> Result<RoomGuard<(proto::Room, Vec<ConnectionId>)>> {
2218        let room_id = self.room_id_for_project(project_id).await?;
2219        self.room_transaction(room_id, |tx| async move {
2220            let project = project::Entity::find_by_id(project_id)
2221                .filter(
2222                    Condition::all()
2223                        .add(project::Column::HostConnectionId.eq(connection.id as i32))
2224                        .add(
2225                            project::Column::HostConnectionServerId.eq(connection.owner_id as i32),
2226                        ),
2227                )
2228                .one(&*tx)
2229                .await?
2230                .ok_or_else(|| anyhow!("no such project"))?;
2231
2232            self.update_project_worktrees(project.id, worktrees, &tx)
2233                .await?;
2234
2235            let guest_connection_ids = self.project_guest_connection_ids(project.id, &tx).await?;
2236            let room = self.get_room(project.room_id, &tx).await?;
2237            Ok((room, guest_connection_ids))
2238        })
2239        .await
2240    }
2241
2242    async fn update_project_worktrees(
2243        &self,
2244        project_id: ProjectId,
2245        worktrees: &[proto::WorktreeMetadata],
2246        tx: &DatabaseTransaction,
2247    ) -> Result<()> {
2248        if !worktrees.is_empty() {
2249            worktree::Entity::insert_many(worktrees.iter().map(|worktree| worktree::ActiveModel {
2250                id: ActiveValue::set(worktree.id as i64),
2251                project_id: ActiveValue::set(project_id),
2252                abs_path: ActiveValue::set(worktree.abs_path.clone()),
2253                root_name: ActiveValue::set(worktree.root_name.clone()),
2254                visible: ActiveValue::set(worktree.visible),
2255                scan_id: ActiveValue::set(0),
2256                completed_scan_id: ActiveValue::set(0),
2257            }))
2258            .on_conflict(
2259                OnConflict::columns([worktree::Column::ProjectId, worktree::Column::Id])
2260                    .update_column(worktree::Column::RootName)
2261                    .to_owned(),
2262            )
2263            .exec(&*tx)
2264            .await?;
2265        }
2266
2267        worktree::Entity::delete_many()
2268            .filter(worktree::Column::ProjectId.eq(project_id).and(
2269                worktree::Column::Id.is_not_in(worktrees.iter().map(|worktree| worktree.id as i64)),
2270            ))
2271            .exec(&*tx)
2272            .await?;
2273
2274        Ok(())
2275    }
2276
2277    pub async fn update_worktree(
2278        &self,
2279        update: &proto::UpdateWorktree,
2280        connection: ConnectionId,
2281    ) -> Result<RoomGuard<Vec<ConnectionId>>> {
2282        let project_id = ProjectId::from_proto(update.project_id);
2283        let worktree_id = update.worktree_id as i64;
2284        let room_id = self.room_id_for_project(project_id).await?;
2285        self.room_transaction(room_id, |tx| async move {
2286            // Ensure the update comes from the host.
2287            let _project = project::Entity::find_by_id(project_id)
2288                .filter(
2289                    Condition::all()
2290                        .add(project::Column::HostConnectionId.eq(connection.id as i32))
2291                        .add(
2292                            project::Column::HostConnectionServerId.eq(connection.owner_id as i32),
2293                        ),
2294                )
2295                .one(&*tx)
2296                .await?
2297                .ok_or_else(|| anyhow!("no such project"))?;
2298
2299            // Update metadata.
2300            worktree::Entity::update(worktree::ActiveModel {
2301                id: ActiveValue::set(worktree_id),
2302                project_id: ActiveValue::set(project_id),
2303                root_name: ActiveValue::set(update.root_name.clone()),
2304                scan_id: ActiveValue::set(update.scan_id as i64),
2305                completed_scan_id: if update.is_last_update {
2306                    ActiveValue::set(update.scan_id as i64)
2307                } else {
2308                    ActiveValue::default()
2309                },
2310                abs_path: ActiveValue::set(update.abs_path.clone()),
2311                ..Default::default()
2312            })
2313            .exec(&*tx)
2314            .await?;
2315
2316            if !update.updated_entries.is_empty() {
2317                worktree_entry::Entity::insert_many(update.updated_entries.iter().map(|entry| {
2318                    let mtime = entry.mtime.clone().unwrap_or_default();
2319                    worktree_entry::ActiveModel {
2320                        project_id: ActiveValue::set(project_id),
2321                        worktree_id: ActiveValue::set(worktree_id),
2322                        id: ActiveValue::set(entry.id as i64),
2323                        is_dir: ActiveValue::set(entry.is_dir),
2324                        path: ActiveValue::set(entry.path.clone()),
2325                        inode: ActiveValue::set(entry.inode as i64),
2326                        mtime_seconds: ActiveValue::set(mtime.seconds as i64),
2327                        mtime_nanos: ActiveValue::set(mtime.nanos as i32),
2328                        is_symlink: ActiveValue::set(entry.is_symlink),
2329                        is_ignored: ActiveValue::set(entry.is_ignored),
2330                        is_deleted: ActiveValue::set(false),
2331                        scan_id: ActiveValue::set(update.scan_id as i64),
2332                    }
2333                }))
2334                .on_conflict(
2335                    OnConflict::columns([
2336                        worktree_entry::Column::ProjectId,
2337                        worktree_entry::Column::WorktreeId,
2338                        worktree_entry::Column::Id,
2339                    ])
2340                    .update_columns([
2341                        worktree_entry::Column::IsDir,
2342                        worktree_entry::Column::Path,
2343                        worktree_entry::Column::Inode,
2344                        worktree_entry::Column::MtimeSeconds,
2345                        worktree_entry::Column::MtimeNanos,
2346                        worktree_entry::Column::IsSymlink,
2347                        worktree_entry::Column::IsIgnored,
2348                        worktree_entry::Column::ScanId,
2349                    ])
2350                    .to_owned(),
2351                )
2352                .exec(&*tx)
2353                .await?;
2354            }
2355
2356            if !update.removed_entries.is_empty() {
2357                worktree_entry::Entity::update_many()
2358                    .filter(
2359                        worktree_entry::Column::ProjectId
2360                            .eq(project_id)
2361                            .and(worktree_entry::Column::WorktreeId.eq(worktree_id))
2362                            .and(
2363                                worktree_entry::Column::Id
2364                                    .is_in(update.removed_entries.iter().map(|id| *id as i64)),
2365                            ),
2366                    )
2367                    .set(worktree_entry::ActiveModel {
2368                        is_deleted: ActiveValue::Set(true),
2369                        scan_id: ActiveValue::Set(update.scan_id as i64),
2370                        ..Default::default()
2371                    })
2372                    .exec(&*tx)
2373                    .await?;
2374            }
2375
2376            if !update.updated_repositories.is_empty() {
2377                worktree_repository::Entity::insert_many(update.updated_repositories.iter().map(
2378                    |repository| worktree_repository::ActiveModel {
2379                        project_id: ActiveValue::set(project_id),
2380                        worktree_id: ActiveValue::set(worktree_id),
2381                        work_directory_id: ActiveValue::set(repository.work_directory_id as i64),
2382                        scan_id: ActiveValue::set(update.scan_id as i64),
2383                        branch: ActiveValue::set(repository.branch.clone()),
2384                        is_deleted: ActiveValue::set(false),
2385                    },
2386                ))
2387                .on_conflict(
2388                    OnConflict::columns([
2389                        worktree_repository::Column::ProjectId,
2390                        worktree_repository::Column::WorktreeId,
2391                        worktree_repository::Column::WorkDirectoryId,
2392                    ])
2393                    .update_columns([
2394                        worktree_repository::Column::ScanId,
2395                        worktree_repository::Column::Branch,
2396                    ])
2397                    .to_owned(),
2398                )
2399                .exec(&*tx)
2400                .await?;
2401
2402                for repository in update.updated_repositories.iter() {
2403                    if !repository.updated_worktree_statuses.is_empty() {
2404                        worktree_repository_statuses::Entity::insert_many(
2405                            repository
2406                                .updated_worktree_statuses
2407                                .iter()
2408                                .map(|status_entry| worktree_repository_statuses::ActiveModel {
2409                                    project_id: ActiveValue::set(project_id),
2410                                    worktree_id: ActiveValue::set(worktree_id),
2411                                    work_directory_id: ActiveValue::set(
2412                                        repository.work_directory_id as i64,
2413                                    ),
2414                                    repo_path: ActiveValue::set(status_entry.repo_path.clone()),
2415                                    status: ActiveValue::set(status_entry.status as i64),
2416                                    scan_id: ActiveValue::set(update.scan_id as i64),
2417                                    is_deleted: ActiveValue::set(false),
2418                                }),
2419                        )
2420                        .on_conflict(
2421                            OnConflict::columns([
2422                                worktree_repository_statuses::Column::ProjectId,
2423                                worktree_repository_statuses::Column::WorktreeId,
2424                                worktree_repository_statuses::Column::WorkDirectoryId,
2425                                worktree_repository_statuses::Column::RepoPath,
2426                            ])
2427                            .update_columns([
2428                                worktree_repository_statuses::Column::ScanId,
2429                                worktree_repository_statuses::Column::Status,
2430                            ])
2431                            .to_owned(),
2432                        )
2433                        .exec(&*tx)
2434                        .await?;
2435                    }
2436
2437                    if !repository.removed_worktree_repo_paths.is_empty() {
2438                        worktree_repository_statuses::Entity::update_many()
2439                            .filter(
2440                                worktree_repository_statuses::Column::ProjectId
2441                                    .eq(project_id)
2442                                    .and(
2443                                        worktree_repository_statuses::Column::WorktreeId
2444                                            .eq(worktree_id),
2445                                    )
2446                                    .and(
2447                                        worktree_repository_statuses::Column::WorkDirectoryId
2448                                            .eq(repository.work_directory_id),
2449                                    )
2450                                    .and(
2451                                        worktree_repository_statuses::Column::RepoPath.is_in(
2452                                            repository
2453                                                .removed_worktree_repo_paths
2454                                                .iter()
2455                                                .cloned()
2456                                                .collect::<Vec<_>>(),
2457                                        ),
2458                                    ),
2459                            )
2460                            .set(worktree_repository_statuses::ActiveModel {
2461                                is_deleted: ActiveValue::Set(true),
2462                                scan_id: ActiveValue::Set(update.scan_id as i64),
2463                                ..Default::default()
2464                            })
2465                            .exec(&*tx)
2466                            .await?;
2467                    }
2468                }
2469            }
2470
2471            if !update.removed_repositories.is_empty() {
2472                worktree_repository::Entity::update_many()
2473                    .filter(
2474                        worktree_repository::Column::ProjectId
2475                            .eq(project_id)
2476                            .and(worktree_repository::Column::WorktreeId.eq(worktree_id))
2477                            .and(
2478                                worktree_repository::Column::WorkDirectoryId
2479                                    .is_in(update.removed_repositories.iter().map(|id| *id as i64)),
2480                            ),
2481                    )
2482                    .set(worktree_repository::ActiveModel {
2483                        is_deleted: ActiveValue::Set(true),
2484                        scan_id: ActiveValue::Set(update.scan_id as i64),
2485                        ..Default::default()
2486                    })
2487                    .exec(&*tx)
2488                    .await?;
2489
2490                // Flip all status entries associated with a given repository_entry
2491                worktree_repository_statuses::Entity::update_many()
2492                    .filter(
2493                        worktree_repository_statuses::Column::ProjectId
2494                            .eq(project_id)
2495                            .and(worktree_repository_statuses::Column::WorktreeId.eq(worktree_id))
2496                            .and(
2497                                worktree_repository_statuses::Column::WorkDirectoryId
2498                                    .is_in(update.removed_repositories.iter().map(|id| *id as i64)),
2499                            ),
2500                    )
2501                    .set(worktree_repository_statuses::ActiveModel {
2502                        is_deleted: ActiveValue::Set(true),
2503                        scan_id: ActiveValue::Set(update.scan_id as i64),
2504                        ..Default::default()
2505                    })
2506                    .exec(&*tx)
2507                    .await?;
2508            }
2509
2510            let connection_ids = self.project_guest_connection_ids(project_id, &tx).await?;
2511            Ok(connection_ids)
2512        })
2513        .await
2514    }
2515
2516    pub async fn update_diagnostic_summary(
2517        &self,
2518        update: &proto::UpdateDiagnosticSummary,
2519        connection: ConnectionId,
2520    ) -> Result<RoomGuard<Vec<ConnectionId>>> {
2521        let project_id = ProjectId::from_proto(update.project_id);
2522        let worktree_id = update.worktree_id as i64;
2523        let room_id = self.room_id_for_project(project_id).await?;
2524        self.room_transaction(room_id, |tx| async move {
2525            let summary = update
2526                .summary
2527                .as_ref()
2528                .ok_or_else(|| anyhow!("invalid summary"))?;
2529
2530            // Ensure the update comes from the host.
2531            let project = project::Entity::find_by_id(project_id)
2532                .one(&*tx)
2533                .await?
2534                .ok_or_else(|| anyhow!("no such project"))?;
2535            if project.host_connection()? != connection {
2536                return Err(anyhow!("can't update a project hosted by someone else"))?;
2537            }
2538
2539            // Update summary.
2540            worktree_diagnostic_summary::Entity::insert(worktree_diagnostic_summary::ActiveModel {
2541                project_id: ActiveValue::set(project_id),
2542                worktree_id: ActiveValue::set(worktree_id),
2543                path: ActiveValue::set(summary.path.clone()),
2544                language_server_id: ActiveValue::set(summary.language_server_id as i64),
2545                error_count: ActiveValue::set(summary.error_count as i32),
2546                warning_count: ActiveValue::set(summary.warning_count as i32),
2547                ..Default::default()
2548            })
2549            .on_conflict(
2550                OnConflict::columns([
2551                    worktree_diagnostic_summary::Column::ProjectId,
2552                    worktree_diagnostic_summary::Column::WorktreeId,
2553                    worktree_diagnostic_summary::Column::Path,
2554                ])
2555                .update_columns([
2556                    worktree_diagnostic_summary::Column::LanguageServerId,
2557                    worktree_diagnostic_summary::Column::ErrorCount,
2558                    worktree_diagnostic_summary::Column::WarningCount,
2559                ])
2560                .to_owned(),
2561            )
2562            .exec(&*tx)
2563            .await?;
2564
2565            let connection_ids = self.project_guest_connection_ids(project_id, &tx).await?;
2566            Ok(connection_ids)
2567        })
2568        .await
2569    }
2570
2571    pub async fn start_language_server(
2572        &self,
2573        update: &proto::StartLanguageServer,
2574        connection: ConnectionId,
2575    ) -> Result<RoomGuard<Vec<ConnectionId>>> {
2576        let project_id = ProjectId::from_proto(update.project_id);
2577        let room_id = self.room_id_for_project(project_id).await?;
2578        self.room_transaction(room_id, |tx| async move {
2579            let server = update
2580                .server
2581                .as_ref()
2582                .ok_or_else(|| anyhow!("invalid language server"))?;
2583
2584            // Ensure the update comes from the host.
2585            let project = project::Entity::find_by_id(project_id)
2586                .one(&*tx)
2587                .await?
2588                .ok_or_else(|| anyhow!("no such project"))?;
2589            if project.host_connection()? != connection {
2590                return Err(anyhow!("can't update a project hosted by someone else"))?;
2591            }
2592
2593            // Add the newly-started language server.
2594            language_server::Entity::insert(language_server::ActiveModel {
2595                project_id: ActiveValue::set(project_id),
2596                id: ActiveValue::set(server.id as i64),
2597                name: ActiveValue::set(server.name.clone()),
2598                ..Default::default()
2599            })
2600            .on_conflict(
2601                OnConflict::columns([
2602                    language_server::Column::ProjectId,
2603                    language_server::Column::Id,
2604                ])
2605                .update_column(language_server::Column::Name)
2606                .to_owned(),
2607            )
2608            .exec(&*tx)
2609            .await?;
2610
2611            let connection_ids = self.project_guest_connection_ids(project_id, &tx).await?;
2612            Ok(connection_ids)
2613        })
2614        .await
2615    }
2616
2617    pub async fn join_project(
2618        &self,
2619        project_id: ProjectId,
2620        connection: ConnectionId,
2621    ) -> Result<RoomGuard<(Project, ReplicaId)>> {
2622        let room_id = self.room_id_for_project(project_id).await?;
2623        self.room_transaction(room_id, |tx| async move {
2624            let participant = room_participant::Entity::find()
2625                .filter(
2626                    Condition::all()
2627                        .add(
2628                            room_participant::Column::AnsweringConnectionId
2629                                .eq(connection.id as i32),
2630                        )
2631                        .add(
2632                            room_participant::Column::AnsweringConnectionServerId
2633                                .eq(connection.owner_id as i32),
2634                        ),
2635                )
2636                .one(&*tx)
2637                .await?
2638                .ok_or_else(|| anyhow!("must join a room first"))?;
2639
2640            let project = project::Entity::find_by_id(project_id)
2641                .one(&*tx)
2642                .await?
2643                .ok_or_else(|| anyhow!("no such project"))?;
2644            if project.room_id != participant.room_id {
2645                return Err(anyhow!("no such project"))?;
2646            }
2647
2648            let mut collaborators = project
2649                .find_related(project_collaborator::Entity)
2650                .all(&*tx)
2651                .await?;
2652            let replica_ids = collaborators
2653                .iter()
2654                .map(|c| c.replica_id)
2655                .collect::<HashSet<_>>();
2656            let mut replica_id = ReplicaId(1);
2657            while replica_ids.contains(&replica_id) {
2658                replica_id.0 += 1;
2659            }
2660            let new_collaborator = project_collaborator::ActiveModel {
2661                project_id: ActiveValue::set(project_id),
2662                connection_id: ActiveValue::set(connection.id as i32),
2663                connection_server_id: ActiveValue::set(ServerId(connection.owner_id as i32)),
2664                user_id: ActiveValue::set(participant.user_id),
2665                replica_id: ActiveValue::set(replica_id),
2666                is_host: ActiveValue::set(false),
2667                ..Default::default()
2668            }
2669            .insert(&*tx)
2670            .await?;
2671            collaborators.push(new_collaborator);
2672
2673            let db_worktrees = project.find_related(worktree::Entity).all(&*tx).await?;
2674            let mut worktrees = db_worktrees
2675                .into_iter()
2676                .map(|db_worktree| {
2677                    (
2678                        db_worktree.id as u64,
2679                        Worktree {
2680                            id: db_worktree.id as u64,
2681                            abs_path: db_worktree.abs_path,
2682                            root_name: db_worktree.root_name,
2683                            visible: db_worktree.visible,
2684                            entries: Default::default(),
2685                            repository_entries: Default::default(),
2686                            diagnostic_summaries: Default::default(),
2687                            scan_id: db_worktree.scan_id as u64,
2688                            completed_scan_id: db_worktree.completed_scan_id as u64,
2689                        },
2690                    )
2691                })
2692                .collect::<BTreeMap<_, _>>();
2693
2694            // Populate worktree entries.
2695            {
2696                let mut db_entries = worktree_entry::Entity::find()
2697                    .filter(
2698                        Condition::all()
2699                            .add(worktree_entry::Column::ProjectId.eq(project_id))
2700                            .add(worktree_entry::Column::IsDeleted.eq(false)),
2701                    )
2702                    .stream(&*tx)
2703                    .await?;
2704                while let Some(db_entry) = db_entries.next().await {
2705                    let db_entry = db_entry?;
2706                    if let Some(worktree) = worktrees.get_mut(&(db_entry.worktree_id as u64)) {
2707                        worktree.entries.push(proto::Entry {
2708                            id: db_entry.id as u64,
2709                            is_dir: db_entry.is_dir,
2710                            path: db_entry.path,
2711                            inode: db_entry.inode as u64,
2712                            mtime: Some(proto::Timestamp {
2713                                seconds: db_entry.mtime_seconds as u64,
2714                                nanos: db_entry.mtime_nanos as u32,
2715                            }),
2716                            is_symlink: db_entry.is_symlink,
2717                            is_ignored: db_entry.is_ignored,
2718                        });
2719                    }
2720                }
2721            }
2722
2723            // Populate repository entries.
2724            {
2725                let mut db_repository_entries = worktree_repository::Entity::find()
2726                    .filter(
2727                        Condition::all()
2728                            .add(worktree_repository::Column::ProjectId.eq(project_id))
2729                            .add(worktree_repository::Column::IsDeleted.eq(false)),
2730                    )
2731                    .stream(&*tx)
2732                    .await?;
2733                while let Some(db_repository_entry) = db_repository_entries.next().await {
2734                    let db_repository_entry = db_repository_entry?;
2735                    if let Some(worktree) =
2736                        worktrees.get_mut(&(db_repository_entry.worktree_id as u64))
2737                    {
2738                        worktree.repository_entries.insert(
2739                            db_repository_entry.work_directory_id as u64,
2740                            proto::RepositoryEntry {
2741                                work_directory_id: db_repository_entry.work_directory_id as u64,
2742                                branch: db_repository_entry.branch,
2743                                removed_worktree_repo_paths: Default::default(),
2744                                updated_worktree_statuses: Default::default(),
2745                            },
2746                        );
2747                    }
2748                }
2749            }
2750
2751            {
2752                let mut db_status_entries = worktree_repository_statuses::Entity::find()
2753                    .filter(
2754                        Condition::all()
2755                            .add(worktree_repository_statuses::Column::ProjectId.eq(project_id))
2756                            .add(worktree_repository_statuses::Column::IsDeleted.eq(false)),
2757                    )
2758                    .stream(&*tx)
2759                    .await?;
2760
2761                while let Some(db_status_entry) = db_status_entries.next().await {
2762                    let db_status_entry = db_status_entry?;
2763                    if let Some(worktree) = worktrees.get_mut(&(db_status_entry.worktree_id as u64))
2764                    {
2765                        if let Some(repository_entry) = worktree
2766                            .repository_entries
2767                            .get_mut(&(db_status_entry.work_directory_id as u64))
2768                        {
2769                            repository_entry
2770                                .updated_worktree_statuses
2771                                .push(proto::StatusEntry {
2772                                    repo_path: db_status_entry.repo_path,
2773                                    status: db_status_entry.status as i32,
2774                                });
2775                        }
2776                    }
2777                }
2778            }
2779
2780            // Populate worktree diagnostic summaries.
2781            {
2782                let mut db_summaries = worktree_diagnostic_summary::Entity::find()
2783                    .filter(worktree_diagnostic_summary::Column::ProjectId.eq(project_id))
2784                    .stream(&*tx)
2785                    .await?;
2786                while let Some(db_summary) = db_summaries.next().await {
2787                    let db_summary = db_summary?;
2788                    if let Some(worktree) = worktrees.get_mut(&(db_summary.worktree_id as u64)) {
2789                        worktree
2790                            .diagnostic_summaries
2791                            .push(proto::DiagnosticSummary {
2792                                path: db_summary.path,
2793                                language_server_id: db_summary.language_server_id as u64,
2794                                error_count: db_summary.error_count as u32,
2795                                warning_count: db_summary.warning_count as u32,
2796                            });
2797                    }
2798                }
2799            }
2800
2801            // Populate language servers.
2802            let language_servers = project
2803                .find_related(language_server::Entity)
2804                .all(&*tx)
2805                .await?;
2806
2807            let project = Project {
2808                collaborators: collaborators
2809                    .into_iter()
2810                    .map(|collaborator| ProjectCollaborator {
2811                        connection_id: collaborator.connection(),
2812                        user_id: collaborator.user_id,
2813                        replica_id: collaborator.replica_id,
2814                        is_host: collaborator.is_host,
2815                    })
2816                    .collect(),
2817                worktrees,
2818                language_servers: language_servers
2819                    .into_iter()
2820                    .map(|language_server| proto::LanguageServer {
2821                        id: language_server.id as u64,
2822                        name: language_server.name,
2823                    })
2824                    .collect(),
2825            };
2826            Ok((project, replica_id as ReplicaId))
2827        })
2828        .await
2829    }
2830
2831    pub async fn leave_project(
2832        &self,
2833        project_id: ProjectId,
2834        connection: ConnectionId,
2835    ) -> Result<RoomGuard<(proto::Room, LeftProject)>> {
2836        let room_id = self.room_id_for_project(project_id).await?;
2837        self.room_transaction(room_id, |tx| async move {
2838            let result = project_collaborator::Entity::delete_many()
2839                .filter(
2840                    Condition::all()
2841                        .add(project_collaborator::Column::ProjectId.eq(project_id))
2842                        .add(project_collaborator::Column::ConnectionId.eq(connection.id as i32))
2843                        .add(
2844                            project_collaborator::Column::ConnectionServerId
2845                                .eq(connection.owner_id as i32),
2846                        ),
2847                )
2848                .exec(&*tx)
2849                .await?;
2850            if result.rows_affected == 0 {
2851                Err(anyhow!("not a collaborator on this project"))?;
2852            }
2853
2854            let project = project::Entity::find_by_id(project_id)
2855                .one(&*tx)
2856                .await?
2857                .ok_or_else(|| anyhow!("no such project"))?;
2858            let collaborators = project
2859                .find_related(project_collaborator::Entity)
2860                .all(&*tx)
2861                .await?;
2862            let connection_ids = collaborators
2863                .into_iter()
2864                .map(|collaborator| collaborator.connection())
2865                .collect();
2866
2867            follower::Entity::delete_many()
2868                .filter(
2869                    Condition::any()
2870                        .add(
2871                            Condition::all()
2872                                .add(follower::Column::ProjectId.eq(project_id))
2873                                .add(
2874                                    follower::Column::LeaderConnectionServerId
2875                                        .eq(connection.owner_id),
2876                                )
2877                                .add(follower::Column::LeaderConnectionId.eq(connection.id)),
2878                        )
2879                        .add(
2880                            Condition::all()
2881                                .add(follower::Column::ProjectId.eq(project_id))
2882                                .add(
2883                                    follower::Column::FollowerConnectionServerId
2884                                        .eq(connection.owner_id),
2885                                )
2886                                .add(follower::Column::FollowerConnectionId.eq(connection.id)),
2887                        ),
2888                )
2889                .exec(&*tx)
2890                .await?;
2891
2892            let room = self.get_room(project.room_id, &tx).await?;
2893            let left_project = LeftProject {
2894                id: project_id,
2895                host_user_id: project.host_user_id,
2896                host_connection_id: project.host_connection()?,
2897                connection_ids,
2898            };
2899            Ok((room, left_project))
2900        })
2901        .await
2902    }
2903
2904    pub async fn project_collaborators(
2905        &self,
2906        project_id: ProjectId,
2907        connection_id: ConnectionId,
2908    ) -> Result<RoomGuard<Vec<ProjectCollaborator>>> {
2909        let room_id = self.room_id_for_project(project_id).await?;
2910        self.room_transaction(room_id, |tx| async move {
2911            let collaborators = project_collaborator::Entity::find()
2912                .filter(project_collaborator::Column::ProjectId.eq(project_id))
2913                .all(&*tx)
2914                .await?
2915                .into_iter()
2916                .map(|collaborator| ProjectCollaborator {
2917                    connection_id: collaborator.connection(),
2918                    user_id: collaborator.user_id,
2919                    replica_id: collaborator.replica_id,
2920                    is_host: collaborator.is_host,
2921                })
2922                .collect::<Vec<_>>();
2923
2924            if collaborators
2925                .iter()
2926                .any(|collaborator| collaborator.connection_id == connection_id)
2927            {
2928                Ok(collaborators)
2929            } else {
2930                Err(anyhow!("no such project"))?
2931            }
2932        })
2933        .await
2934    }
2935
2936    pub async fn project_connection_ids(
2937        &self,
2938        project_id: ProjectId,
2939        connection_id: ConnectionId,
2940    ) -> Result<RoomGuard<HashSet<ConnectionId>>> {
2941        let room_id = self.room_id_for_project(project_id).await?;
2942        self.room_transaction(room_id, |tx| async move {
2943            let mut collaborators = project_collaborator::Entity::find()
2944                .filter(project_collaborator::Column::ProjectId.eq(project_id))
2945                .stream(&*tx)
2946                .await?;
2947
2948            let mut connection_ids = HashSet::default();
2949            while let Some(collaborator) = collaborators.next().await {
2950                let collaborator = collaborator?;
2951                connection_ids.insert(collaborator.connection());
2952            }
2953
2954            if connection_ids.contains(&connection_id) {
2955                Ok(connection_ids)
2956            } else {
2957                Err(anyhow!("no such project"))?
2958            }
2959        })
2960        .await
2961    }
2962
2963    async fn project_guest_connection_ids(
2964        &self,
2965        project_id: ProjectId,
2966        tx: &DatabaseTransaction,
2967    ) -> Result<Vec<ConnectionId>> {
2968        let mut collaborators = project_collaborator::Entity::find()
2969            .filter(
2970                project_collaborator::Column::ProjectId
2971                    .eq(project_id)
2972                    .and(project_collaborator::Column::IsHost.eq(false)),
2973            )
2974            .stream(tx)
2975            .await?;
2976
2977        let mut guest_connection_ids = Vec::new();
2978        while let Some(collaborator) = collaborators.next().await {
2979            let collaborator = collaborator?;
2980            guest_connection_ids.push(collaborator.connection());
2981        }
2982        Ok(guest_connection_ids)
2983    }
2984
2985    async fn room_id_for_project(&self, project_id: ProjectId) -> Result<RoomId> {
2986        self.transaction(|tx| async move {
2987            let project = project::Entity::find_by_id(project_id)
2988                .one(&*tx)
2989                .await?
2990                .ok_or_else(|| anyhow!("project {} not found", project_id))?;
2991            Ok(project.room_id)
2992        })
2993        .await
2994    }
2995
2996    // access tokens
2997
2998    pub async fn create_access_token(
2999        &self,
3000        user_id: UserId,
3001        access_token_hash: &str,
3002        max_access_token_count: usize,
3003    ) -> Result<AccessTokenId> {
3004        self.transaction(|tx| async {
3005            let tx = tx;
3006
3007            let token = access_token::ActiveModel {
3008                user_id: ActiveValue::set(user_id),
3009                hash: ActiveValue::set(access_token_hash.into()),
3010                ..Default::default()
3011            }
3012            .insert(&*tx)
3013            .await?;
3014
3015            access_token::Entity::delete_many()
3016                .filter(
3017                    access_token::Column::Id.in_subquery(
3018                        Query::select()
3019                            .column(access_token::Column::Id)
3020                            .from(access_token::Entity)
3021                            .and_where(access_token::Column::UserId.eq(user_id))
3022                            .order_by(access_token::Column::Id, sea_orm::Order::Desc)
3023                            .limit(10000)
3024                            .offset(max_access_token_count as u64)
3025                            .to_owned(),
3026                    ),
3027                )
3028                .exec(&*tx)
3029                .await?;
3030            Ok(token.id)
3031        })
3032        .await
3033    }
3034
3035    pub async fn get_access_token(
3036        &self,
3037        access_token_id: AccessTokenId,
3038    ) -> Result<access_token::Model> {
3039        self.transaction(|tx| async move {
3040            Ok(access_token::Entity::find_by_id(access_token_id)
3041                .one(&*tx)
3042                .await?
3043                .ok_or_else(|| anyhow!("no such access token"))?)
3044        })
3045        .await
3046    }
3047
3048    async fn transaction<F, Fut, T>(&self, f: F) -> Result<T>
3049    where
3050        F: Send + Fn(TransactionHandle) -> Fut,
3051        Fut: Send + Future<Output = Result<T>>,
3052    {
3053        let body = async {
3054            let mut i = 0;
3055            loop {
3056                let (tx, result) = self.with_transaction(&f).await?;
3057                match result {
3058                    Ok(result) => match tx.commit().await.map_err(Into::into) {
3059                        Ok(()) => return Ok(result),
3060                        Err(error) => {
3061                            if !self.retry_on_serialization_error(&error, i).await {
3062                                return Err(error);
3063                            }
3064                        }
3065                    },
3066                    Err(error) => {
3067                        tx.rollback().await?;
3068                        if !self.retry_on_serialization_error(&error, i).await {
3069                            return Err(error);
3070                        }
3071                    }
3072                }
3073                i += 1;
3074            }
3075        };
3076
3077        self.run(body).await
3078    }
3079
3080    async fn optional_room_transaction<F, Fut, T>(&self, f: F) -> Result<Option<RoomGuard<T>>>
3081    where
3082        F: Send + Fn(TransactionHandle) -> Fut,
3083        Fut: Send + Future<Output = Result<Option<(RoomId, T)>>>,
3084    {
3085        let body = async {
3086            let mut i = 0;
3087            loop {
3088                let (tx, result) = self.with_transaction(&f).await?;
3089                match result {
3090                    Ok(Some((room_id, data))) => {
3091                        let lock = self.rooms.entry(room_id).or_default().clone();
3092                        let _guard = lock.lock_owned().await;
3093                        match tx.commit().await.map_err(Into::into) {
3094                            Ok(()) => {
3095                                return Ok(Some(RoomGuard {
3096                                    data,
3097                                    _guard,
3098                                    _not_send: PhantomData,
3099                                }));
3100                            }
3101                            Err(error) => {
3102                                if !self.retry_on_serialization_error(&error, i).await {
3103                                    return Err(error);
3104                                }
3105                            }
3106                        }
3107                    }
3108                    Ok(None) => match tx.commit().await.map_err(Into::into) {
3109                        Ok(()) => return Ok(None),
3110                        Err(error) => {
3111                            if !self.retry_on_serialization_error(&error, i).await {
3112                                return Err(error);
3113                            }
3114                        }
3115                    },
3116                    Err(error) => {
3117                        tx.rollback().await?;
3118                        if !self.retry_on_serialization_error(&error, i).await {
3119                            return Err(error);
3120                        }
3121                    }
3122                }
3123                i += 1;
3124            }
3125        };
3126
3127        self.run(body).await
3128    }
3129
3130    async fn room_transaction<F, Fut, T>(&self, room_id: RoomId, f: F) -> Result<RoomGuard<T>>
3131    where
3132        F: Send + Fn(TransactionHandle) -> Fut,
3133        Fut: Send + Future<Output = Result<T>>,
3134    {
3135        let body = async {
3136            let mut i = 0;
3137            loop {
3138                let lock = self.rooms.entry(room_id).or_default().clone();
3139                let _guard = lock.lock_owned().await;
3140                let (tx, result) = self.with_transaction(&f).await?;
3141                match result {
3142                    Ok(data) => match tx.commit().await.map_err(Into::into) {
3143                        Ok(()) => {
3144                            return Ok(RoomGuard {
3145                                data,
3146                                _guard,
3147                                _not_send: PhantomData,
3148                            });
3149                        }
3150                        Err(error) => {
3151                            if !self.retry_on_serialization_error(&error, i).await {
3152                                return Err(error);
3153                            }
3154                        }
3155                    },
3156                    Err(error) => {
3157                        tx.rollback().await?;
3158                        if !self.retry_on_serialization_error(&error, i).await {
3159                            return Err(error);
3160                        }
3161                    }
3162                }
3163                i += 1;
3164            }
3165        };
3166
3167        self.run(body).await
3168    }
3169
3170    async fn with_transaction<F, Fut, T>(&self, f: &F) -> Result<(DatabaseTransaction, Result<T>)>
3171    where
3172        F: Send + Fn(TransactionHandle) -> Fut,
3173        Fut: Send + Future<Output = Result<T>>,
3174    {
3175        let tx = self
3176            .pool
3177            .begin_with_config(Some(IsolationLevel::Serializable), None)
3178            .await?;
3179
3180        let mut tx = Arc::new(Some(tx));
3181        let result = f(TransactionHandle(tx.clone())).await;
3182        let Some(tx) = Arc::get_mut(&mut tx).and_then(|tx| tx.take()) else {
3183            return Err(anyhow!("couldn't complete transaction because it's still in use"))?;
3184        };
3185
3186        Ok((tx, result))
3187    }
3188
3189    async fn run<F, T>(&self, future: F) -> Result<T>
3190    where
3191        F: Future<Output = Result<T>>,
3192    {
3193        #[cfg(test)]
3194        {
3195            if let Executor::Deterministic(executor) = &self.executor {
3196                executor.simulate_random_delay().await;
3197            }
3198
3199            self.runtime.as_ref().unwrap().block_on(future)
3200        }
3201
3202        #[cfg(not(test))]
3203        {
3204            future.await
3205        }
3206    }
3207
3208    async fn retry_on_serialization_error(&self, error: &Error, prev_attempt_count: u32) -> bool {
3209        // If the error is due to a failure to serialize concurrent transactions, then retry
3210        // this transaction after a delay. With each subsequent retry, double the delay duration.
3211        // Also vary the delay randomly in order to ensure different database connections retry
3212        // at different times.
3213        if is_serialization_error(error) {
3214            let base_delay = 4_u64 << prev_attempt_count.min(16);
3215            let randomized_delay = base_delay as f32 * self.rng.lock().await.gen_range(0.5..=2.0);
3216            log::info!(
3217                "retrying transaction after serialization error. delay: {} ms.",
3218                randomized_delay
3219            );
3220            self.executor
3221                .sleep(Duration::from_millis(randomized_delay as u64))
3222                .await;
3223            true
3224        } else {
3225            false
3226        }
3227    }
3228}
3229
3230fn is_serialization_error(error: &Error) -> bool {
3231    const SERIALIZATION_FAILURE_CODE: &'static str = "40001";
3232    match error {
3233        Error::Database(
3234            DbErr::Exec(sea_orm::RuntimeErr::SqlxError(error))
3235            | DbErr::Query(sea_orm::RuntimeErr::SqlxError(error)),
3236        ) if error
3237            .as_database_error()
3238            .and_then(|error| error.code())
3239            .as_deref()
3240            == Some(SERIALIZATION_FAILURE_CODE) =>
3241        {
3242            true
3243        }
3244        _ => false,
3245    }
3246}
3247
3248struct TransactionHandle(Arc<Option<DatabaseTransaction>>);
3249
3250impl Deref for TransactionHandle {
3251    type Target = DatabaseTransaction;
3252
3253    fn deref(&self) -> &Self::Target {
3254        self.0.as_ref().as_ref().unwrap()
3255    }
3256}
3257
3258pub struct RoomGuard<T> {
3259    data: T,
3260    _guard: OwnedMutexGuard<()>,
3261    _not_send: PhantomData<Rc<()>>,
3262}
3263
3264impl<T> Deref for RoomGuard<T> {
3265    type Target = T;
3266
3267    fn deref(&self) -> &T {
3268        &self.data
3269    }
3270}
3271
3272impl<T> DerefMut for RoomGuard<T> {
3273    fn deref_mut(&mut self) -> &mut T {
3274        &mut self.data
3275    }
3276}
3277
3278#[derive(Debug, Serialize, Deserialize)]
3279pub struct NewUserParams {
3280    pub github_login: String,
3281    pub github_user_id: i32,
3282    pub invite_count: i32,
3283}
3284
3285#[derive(Debug)]
3286pub struct NewUserResult {
3287    pub user_id: UserId,
3288    pub metrics_id: String,
3289    pub inviting_user_id: Option<UserId>,
3290    pub signup_device_id: Option<String>,
3291}
3292
3293fn random_invite_code() -> String {
3294    nanoid::nanoid!(16)
3295}
3296
3297fn random_email_confirmation_code() -> String {
3298    nanoid::nanoid!(64)
3299}
3300
3301macro_rules! id_type {
3302    ($name:ident) => {
3303        #[derive(
3304            Clone,
3305            Copy,
3306            Debug,
3307            Default,
3308            PartialEq,
3309            Eq,
3310            PartialOrd,
3311            Ord,
3312            Hash,
3313            Serialize,
3314            Deserialize,
3315        )]
3316        #[serde(transparent)]
3317        pub struct $name(pub i32);
3318
3319        impl $name {
3320            #[allow(unused)]
3321            pub const MAX: Self = Self(i32::MAX);
3322
3323            #[allow(unused)]
3324            pub fn from_proto(value: u64) -> Self {
3325                Self(value as i32)
3326            }
3327
3328            #[allow(unused)]
3329            pub fn to_proto(self) -> u64 {
3330                self.0 as u64
3331            }
3332        }
3333
3334        impl std::fmt::Display for $name {
3335            fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
3336                self.0.fmt(f)
3337            }
3338        }
3339
3340        impl From<$name> for sea_query::Value {
3341            fn from(value: $name) -> Self {
3342                sea_query::Value::Int(Some(value.0))
3343            }
3344        }
3345
3346        impl sea_orm::TryGetable for $name {
3347            fn try_get(
3348                res: &sea_orm::QueryResult,
3349                pre: &str,
3350                col: &str,
3351            ) -> Result<Self, sea_orm::TryGetError> {
3352                Ok(Self(i32::try_get(res, pre, col)?))
3353            }
3354        }
3355
3356        impl sea_query::ValueType for $name {
3357            fn try_from(v: Value) -> Result<Self, sea_query::ValueTypeErr> {
3358                match v {
3359                    Value::TinyInt(Some(int)) => {
3360                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3361                    }
3362                    Value::SmallInt(Some(int)) => {
3363                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3364                    }
3365                    Value::Int(Some(int)) => {
3366                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3367                    }
3368                    Value::BigInt(Some(int)) => {
3369                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3370                    }
3371                    Value::TinyUnsigned(Some(int)) => {
3372                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3373                    }
3374                    Value::SmallUnsigned(Some(int)) => {
3375                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3376                    }
3377                    Value::Unsigned(Some(int)) => {
3378                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3379                    }
3380                    Value::BigUnsigned(Some(int)) => {
3381                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
3382                    }
3383                    _ => Err(sea_query::ValueTypeErr),
3384                }
3385            }
3386
3387            fn type_name() -> String {
3388                stringify!($name).into()
3389            }
3390
3391            fn array_type() -> sea_query::ArrayType {
3392                sea_query::ArrayType::Int
3393            }
3394
3395            fn column_type() -> sea_query::ColumnType {
3396                sea_query::ColumnType::Integer(None)
3397            }
3398        }
3399
3400        impl sea_orm::TryFromU64 for $name {
3401            fn try_from_u64(n: u64) -> Result<Self, DbErr> {
3402                Ok(Self(n.try_into().map_err(|_| {
3403                    DbErr::ConvertFromU64(concat!(
3404                        "error converting ",
3405                        stringify!($name),
3406                        " to u64"
3407                    ))
3408                })?))
3409            }
3410        }
3411
3412        impl sea_query::Nullable for $name {
3413            fn null() -> Value {
3414                Value::Int(None)
3415            }
3416        }
3417    };
3418}
3419
3420id_type!(AccessTokenId);
3421id_type!(ContactId);
3422id_type!(FollowerId);
3423id_type!(RoomId);
3424id_type!(RoomParticipantId);
3425id_type!(ProjectId);
3426id_type!(ProjectCollaboratorId);
3427id_type!(ReplicaId);
3428id_type!(ServerId);
3429id_type!(SignupId);
3430id_type!(UserId);
3431
3432pub struct RejoinedRoom {
3433    pub room: proto::Room,
3434    pub rejoined_projects: Vec<RejoinedProject>,
3435    pub reshared_projects: Vec<ResharedProject>,
3436}
3437
3438pub struct ResharedProject {
3439    pub id: ProjectId,
3440    pub old_connection_id: ConnectionId,
3441    pub collaborators: Vec<ProjectCollaborator>,
3442    pub worktrees: Vec<proto::WorktreeMetadata>,
3443}
3444
3445pub struct RejoinedProject {
3446    pub id: ProjectId,
3447    pub old_connection_id: ConnectionId,
3448    pub collaborators: Vec<ProjectCollaborator>,
3449    pub worktrees: Vec<RejoinedWorktree>,
3450    pub language_servers: Vec<proto::LanguageServer>,
3451}
3452
3453#[derive(Debug)]
3454pub struct RejoinedWorktree {
3455    pub id: u64,
3456    pub abs_path: String,
3457    pub root_name: String,
3458    pub visible: bool,
3459    pub updated_entries: Vec<proto::Entry>,
3460    pub removed_entries: Vec<u64>,
3461    pub updated_repositories: Vec<proto::RepositoryEntry>,
3462    pub removed_repositories: Vec<u64>,
3463    pub diagnostic_summaries: Vec<proto::DiagnosticSummary>,
3464    pub scan_id: u64,
3465    pub completed_scan_id: u64,
3466}
3467
3468pub struct LeftRoom {
3469    pub room: proto::Room,
3470    pub left_projects: HashMap<ProjectId, LeftProject>,
3471    pub canceled_calls_to_user_ids: Vec<UserId>,
3472}
3473
3474pub struct RefreshedRoom {
3475    pub room: proto::Room,
3476    pub stale_participant_user_ids: Vec<UserId>,
3477    pub canceled_calls_to_user_ids: Vec<UserId>,
3478}
3479
3480pub struct Project {
3481    pub collaborators: Vec<ProjectCollaborator>,
3482    pub worktrees: BTreeMap<u64, Worktree>,
3483    pub language_servers: Vec<proto::LanguageServer>,
3484}
3485
3486pub struct ProjectCollaborator {
3487    pub connection_id: ConnectionId,
3488    pub user_id: UserId,
3489    pub replica_id: ReplicaId,
3490    pub is_host: bool,
3491}
3492
3493impl ProjectCollaborator {
3494    pub fn to_proto(&self) -> proto::Collaborator {
3495        proto::Collaborator {
3496            peer_id: Some(self.connection_id.into()),
3497            replica_id: self.replica_id.0 as u32,
3498            user_id: self.user_id.to_proto(),
3499        }
3500    }
3501}
3502
3503#[derive(Debug)]
3504pub struct LeftProject {
3505    pub id: ProjectId,
3506    pub host_user_id: UserId,
3507    pub host_connection_id: ConnectionId,
3508    pub connection_ids: Vec<ConnectionId>,
3509}
3510
3511pub struct Worktree {
3512    pub id: u64,
3513    pub abs_path: String,
3514    pub root_name: String,
3515    pub visible: bool,
3516    pub entries: Vec<proto::Entry>,
3517    pub repository_entries: BTreeMap<u64, proto::RepositoryEntry>,
3518    pub diagnostic_summaries: Vec<proto::DiagnosticSummary>,
3519    pub scan_id: u64,
3520    pub completed_scan_id: u64,
3521}
3522
3523#[cfg(test)]
3524pub use test::*;
3525
3526#[cfg(test)]
3527mod test {
3528    use super::*;
3529    use gpui::executor::Background;
3530    use lazy_static::lazy_static;
3531    use parking_lot::Mutex;
3532    use sea_orm::ConnectionTrait;
3533    use sqlx::migrate::MigrateDatabase;
3534    use std::sync::Arc;
3535
3536    pub struct TestDb {
3537        pub db: Option<Arc<Database>>,
3538        pub connection: Option<sqlx::AnyConnection>,
3539    }
3540
3541    impl TestDb {
3542        pub fn sqlite(background: Arc<Background>) -> Self {
3543            let url = format!("sqlite::memory:");
3544            let runtime = tokio::runtime::Builder::new_current_thread()
3545                .enable_io()
3546                .enable_time()
3547                .build()
3548                .unwrap();
3549
3550            let mut db = runtime.block_on(async {
3551                let mut options = ConnectOptions::new(url);
3552                options.max_connections(5);
3553                let db = Database::new(options, Executor::Deterministic(background))
3554                    .await
3555                    .unwrap();
3556                let sql = include_str!(concat!(
3557                    env!("CARGO_MANIFEST_DIR"),
3558                    "/migrations.sqlite/20221109000000_test_schema.sql"
3559                ));
3560                db.pool
3561                    .execute(sea_orm::Statement::from_string(
3562                        db.pool.get_database_backend(),
3563                        sql.into(),
3564                    ))
3565                    .await
3566                    .unwrap();
3567                db
3568            });
3569
3570            db.runtime = Some(runtime);
3571
3572            Self {
3573                db: Some(Arc::new(db)),
3574                connection: None,
3575            }
3576        }
3577
3578        pub fn postgres(background: Arc<Background>) -> Self {
3579            lazy_static! {
3580                static ref LOCK: Mutex<()> = Mutex::new(());
3581            }
3582
3583            let _guard = LOCK.lock();
3584            let mut rng = StdRng::from_entropy();
3585            let url = format!(
3586                "postgres://postgres@localhost/zed-test-{}",
3587                rng.gen::<u128>()
3588            );
3589            let runtime = tokio::runtime::Builder::new_current_thread()
3590                .enable_io()
3591                .enable_time()
3592                .build()
3593                .unwrap();
3594
3595            let mut db = runtime.block_on(async {
3596                sqlx::Postgres::create_database(&url)
3597                    .await
3598                    .expect("failed to create test db");
3599                let mut options = ConnectOptions::new(url);
3600                options
3601                    .max_connections(5)
3602                    .idle_timeout(Duration::from_secs(0));
3603                let db = Database::new(options, Executor::Deterministic(background))
3604                    .await
3605                    .unwrap();
3606                let migrations_path = concat!(env!("CARGO_MANIFEST_DIR"), "/migrations");
3607                db.migrate(Path::new(migrations_path), false).await.unwrap();
3608                db
3609            });
3610
3611            db.runtime = Some(runtime);
3612
3613            Self {
3614                db: Some(Arc::new(db)),
3615                connection: None,
3616            }
3617        }
3618
3619        pub fn db(&self) -> &Arc<Database> {
3620            self.db.as_ref().unwrap()
3621        }
3622    }
3623
3624    impl Drop for TestDb {
3625        fn drop(&mut self) {
3626            let db = self.db.take().unwrap();
3627            if let sea_orm::DatabaseBackend::Postgres = db.pool.get_database_backend() {
3628                db.runtime.as_ref().unwrap().block_on(async {
3629                    use util::ResultExt;
3630                    let query = "
3631                        SELECT pg_terminate_backend(pg_stat_activity.pid)
3632                        FROM pg_stat_activity
3633                        WHERE
3634                            pg_stat_activity.datname = current_database() AND
3635                            pid <> pg_backend_pid();
3636                    ";
3637                    db.pool
3638                        .execute(sea_orm::Statement::from_string(
3639                            db.pool.get_database_backend(),
3640                            query.into(),
3641                        ))
3642                        .await
3643                        .log_err();
3644                    sqlx::Postgres::drop_database(db.options.get_url())
3645                        .await
3646                        .log_err();
3647                })
3648            }
3649        }
3650    }
3651}