db.rs

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