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