db.rs

   1use crate::{Error, Result};
   2use anyhow::anyhow;
   3use axum::http::StatusCode;
   4use collections::{BTreeMap, HashMap, HashSet};
   5use futures::{future::BoxFuture, FutureExt, StreamExt};
   6use rpc::{proto, ConnectionId};
   7use serde::{Deserialize, Serialize};
   8use sqlx::{
   9    migrate::{Migrate as _, Migration, MigrationSource},
  10    types::Uuid,
  11    FromRow,
  12};
  13use std::{future::Future, path::Path, time::Duration};
  14use time::{OffsetDateTime, PrimitiveDateTime};
  15
  16#[cfg(test)]
  17pub type DefaultDb = Db<sqlx::Sqlite>;
  18
  19#[cfg(not(test))]
  20pub type DefaultDb = Db<sqlx::Postgres>;
  21
  22pub struct Db<D: sqlx::Database> {
  23    pool: sqlx::Pool<D>,
  24    #[cfg(test)]
  25    background: Option<std::sync::Arc<gpui::executor::Background>>,
  26    #[cfg(test)]
  27    runtime: Option<tokio::runtime::Runtime>,
  28}
  29
  30pub trait BeginTransaction: Send + Sync {
  31    type Database: sqlx::Database;
  32
  33    fn begin_transaction(&self) -> BoxFuture<Result<sqlx::Transaction<'static, Self::Database>>>;
  34}
  35
  36// In Postgres, serializable transactions are opt-in
  37impl BeginTransaction for Db<sqlx::Postgres> {
  38    type Database = sqlx::Postgres;
  39
  40    fn begin_transaction(&self) -> BoxFuture<Result<sqlx::Transaction<'static, sqlx::Postgres>>> {
  41        async move {
  42            let mut tx = self.pool.begin().await?;
  43            sqlx::Executor::execute(&mut tx, "SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;")
  44                .await?;
  45            Ok(tx)
  46        }
  47        .boxed()
  48    }
  49}
  50
  51// In Sqlite, transactions are inherently serializable.
  52impl BeginTransaction for Db<sqlx::Sqlite> {
  53    type Database = sqlx::Sqlite;
  54
  55    fn begin_transaction(&self) -> BoxFuture<Result<sqlx::Transaction<'static, sqlx::Sqlite>>> {
  56        async move { Ok(self.pool.begin().await?) }.boxed()
  57    }
  58}
  59
  60pub trait RowsAffected {
  61    fn rows_affected(&self) -> u64;
  62}
  63
  64#[cfg(test)]
  65impl RowsAffected for sqlx::sqlite::SqliteQueryResult {
  66    fn rows_affected(&self) -> u64 {
  67        self.rows_affected()
  68    }
  69}
  70
  71impl RowsAffected for sqlx::postgres::PgQueryResult {
  72    fn rows_affected(&self) -> u64 {
  73        self.rows_affected()
  74    }
  75}
  76
  77#[cfg(test)]
  78impl Db<sqlx::Sqlite> {
  79    pub async fn new(url: &str, max_connections: u32) -> Result<Self> {
  80        use std::str::FromStr as _;
  81        let options = sqlx::sqlite::SqliteConnectOptions::from_str(url)
  82            .unwrap()
  83            .create_if_missing(true)
  84            .shared_cache(true);
  85        let pool = sqlx::sqlite::SqlitePoolOptions::new()
  86            .min_connections(2)
  87            .max_connections(max_connections)
  88            .connect_with(options)
  89            .await?;
  90        Ok(Self {
  91            pool,
  92            background: None,
  93            runtime: None,
  94        })
  95    }
  96
  97    pub async fn get_users_by_ids(&self, ids: Vec<UserId>) -> Result<Vec<User>> {
  98        self.transact(|tx| async {
  99            let mut tx = tx;
 100            let query = "
 101                SELECT users.*
 102                FROM users
 103                WHERE users.id IN (SELECT value from json_each($1))
 104            ";
 105            Ok(sqlx::query_as(query)
 106                .bind(&serde_json::json!(ids))
 107                .fetch_all(&mut tx)
 108                .await?)
 109        })
 110        .await
 111    }
 112
 113    pub async fn get_user_metrics_id(&self, id: UserId) -> Result<String> {
 114        self.transact(|mut tx| async move {
 115            let query = "
 116                SELECT metrics_id
 117                FROM users
 118                WHERE id = $1
 119            ";
 120            Ok(sqlx::query_scalar(query)
 121                .bind(id)
 122                .fetch_one(&mut tx)
 123                .await?)
 124        })
 125        .await
 126    }
 127
 128    pub async fn create_user(
 129        &self,
 130        email_address: &str,
 131        admin: bool,
 132        params: NewUserParams,
 133    ) -> Result<NewUserResult> {
 134        self.transact(|mut tx| async {
 135            let query = "
 136                INSERT INTO users (email_address, github_login, github_user_id, admin, metrics_id)
 137                VALUES ($1, $2, $3, $4, $5)
 138                ON CONFLICT (github_login) DO UPDATE SET github_login = excluded.github_login
 139                RETURNING id, metrics_id
 140            ";
 141
 142            let (user_id, metrics_id): (UserId, String) = sqlx::query_as(query)
 143                .bind(email_address)
 144                .bind(&params.github_login)
 145                .bind(&params.github_user_id)
 146                .bind(admin)
 147                .bind(Uuid::new_v4().to_string())
 148                .fetch_one(&mut tx)
 149                .await?;
 150            tx.commit().await?;
 151            Ok(NewUserResult {
 152                user_id,
 153                metrics_id,
 154                signup_device_id: None,
 155                inviting_user_id: None,
 156            })
 157        })
 158        .await
 159    }
 160
 161    pub async fn fuzzy_search_users(&self, _name_query: &str, _limit: u32) -> Result<Vec<User>> {
 162        unimplemented!()
 163    }
 164
 165    pub async fn create_user_from_invite(
 166        &self,
 167        _invite: &Invite,
 168        _user: NewUserParams,
 169    ) -> Result<Option<NewUserResult>> {
 170        unimplemented!()
 171    }
 172
 173    pub async fn create_signup(&self, _signup: Signup) -> Result<()> {
 174        unimplemented!()
 175    }
 176
 177    pub async fn create_invite_from_code(
 178        &self,
 179        _code: &str,
 180        _email_address: &str,
 181        _device_id: Option<&str>,
 182    ) -> Result<Invite> {
 183        unimplemented!()
 184    }
 185
 186    pub async fn record_sent_invites(&self, _invites: &[Invite]) -> Result<()> {
 187        unimplemented!()
 188    }
 189}
 190
 191impl Db<sqlx::Postgres> {
 192    pub async fn new(url: &str, max_connections: u32) -> Result<Self> {
 193        let pool = sqlx::postgres::PgPoolOptions::new()
 194            .max_connections(max_connections)
 195            .connect(url)
 196            .await?;
 197        Ok(Self {
 198            pool,
 199            #[cfg(test)]
 200            background: None,
 201            #[cfg(test)]
 202            runtime: None,
 203        })
 204    }
 205
 206    #[cfg(test)]
 207    pub fn teardown(&self, url: &str) {
 208        self.runtime.as_ref().unwrap().block_on(async {
 209            use util::ResultExt;
 210            let query = "
 211                SELECT pg_terminate_backend(pg_stat_activity.pid)
 212                FROM pg_stat_activity
 213                WHERE pg_stat_activity.datname = current_database() AND pid <> pg_backend_pid();
 214            ";
 215            sqlx::query(query).execute(&self.pool).await.log_err();
 216            self.pool.close().await;
 217            <sqlx::Sqlite as sqlx::migrate::MigrateDatabase>::drop_database(url)
 218                .await
 219                .log_err();
 220        })
 221    }
 222
 223    pub async fn fuzzy_search_users(&self, name_query: &str, limit: u32) -> Result<Vec<User>> {
 224        self.transact(|tx| async {
 225            let mut tx = tx;
 226            let like_string = Self::fuzzy_like_string(name_query);
 227            let query = "
 228                SELECT users.*
 229                FROM users
 230                WHERE github_login ILIKE $1
 231                ORDER BY github_login <-> $2
 232                LIMIT $3
 233            ";
 234            Ok(sqlx::query_as(query)
 235                .bind(like_string)
 236                .bind(name_query)
 237                .bind(limit as i32)
 238                .fetch_all(&mut tx)
 239                .await?)
 240        })
 241        .await
 242    }
 243
 244    pub async fn get_users_by_ids(&self, ids: Vec<UserId>) -> Result<Vec<User>> {
 245        let ids = ids.iter().map(|id| id.0).collect::<Vec<_>>();
 246        self.transact(|tx| async {
 247            let mut tx = tx;
 248            let query = "
 249                SELECT users.*
 250                FROM users
 251                WHERE users.id = ANY ($1)
 252            ";
 253            Ok(sqlx::query_as(query).bind(&ids).fetch_all(&mut tx).await?)
 254        })
 255        .await
 256    }
 257
 258    pub async fn get_user_metrics_id(&self, id: UserId) -> Result<String> {
 259        self.transact(|mut tx| async move {
 260            let query = "
 261                SELECT metrics_id::text
 262                FROM users
 263                WHERE id = $1
 264            ";
 265            Ok(sqlx::query_scalar(query)
 266                .bind(id)
 267                .fetch_one(&mut tx)
 268                .await?)
 269        })
 270        .await
 271    }
 272
 273    pub async fn create_user(
 274        &self,
 275        email_address: &str,
 276        admin: bool,
 277        params: NewUserParams,
 278    ) -> Result<NewUserResult> {
 279        self.transact(|mut tx| async {
 280            let query = "
 281                INSERT INTO users (email_address, github_login, github_user_id, admin)
 282                VALUES ($1, $2, $3, $4)
 283                ON CONFLICT (github_login) DO UPDATE SET github_login = excluded.github_login
 284                RETURNING id, metrics_id::text
 285            ";
 286
 287            let (user_id, metrics_id): (UserId, String) = sqlx::query_as(query)
 288                .bind(email_address)
 289                .bind(&params.github_login)
 290                .bind(params.github_user_id)
 291                .bind(admin)
 292                .fetch_one(&mut tx)
 293                .await?;
 294            tx.commit().await?;
 295
 296            Ok(NewUserResult {
 297                user_id,
 298                metrics_id,
 299                signup_device_id: None,
 300                inviting_user_id: None,
 301            })
 302        })
 303        .await
 304    }
 305
 306    pub async fn create_user_from_invite(
 307        &self,
 308        invite: &Invite,
 309        user: NewUserParams,
 310    ) -> Result<Option<NewUserResult>> {
 311        self.transact(|mut tx| async {
 312            let (signup_id, existing_user_id, inviting_user_id, signup_device_id): (
 313                i32,
 314                Option<UserId>,
 315                Option<UserId>,
 316                Option<String>,
 317            ) = sqlx::query_as(
 318                "
 319                SELECT id, user_id, inviting_user_id, device_id
 320                FROM signups
 321                WHERE
 322                    email_address = $1 AND
 323                    email_confirmation_code = $2
 324                ",
 325            )
 326            .bind(&invite.email_address)
 327            .bind(&invite.email_confirmation_code)
 328            .fetch_optional(&mut tx)
 329            .await?
 330            .ok_or_else(|| Error::Http(StatusCode::NOT_FOUND, "no such invite".to_string()))?;
 331
 332            if existing_user_id.is_some() {
 333                return Ok(None);
 334            }
 335
 336            let (user_id, metrics_id): (UserId, String) = sqlx::query_as(
 337                "
 338                INSERT INTO users
 339                (email_address, github_login, github_user_id, admin, invite_count, invite_code)
 340                VALUES
 341                ($1, $2, $3, FALSE, $4, $5)
 342                ON CONFLICT (github_login) DO UPDATE SET
 343                    email_address = excluded.email_address,
 344                    github_user_id = excluded.github_user_id,
 345                    admin = excluded.admin
 346                RETURNING id, metrics_id::text
 347                ",
 348            )
 349            .bind(&invite.email_address)
 350            .bind(&user.github_login)
 351            .bind(&user.github_user_id)
 352            .bind(&user.invite_count)
 353            .bind(random_invite_code())
 354            .fetch_one(&mut tx)
 355            .await?;
 356
 357            sqlx::query(
 358                "
 359                UPDATE signups
 360                SET user_id = $1
 361                WHERE id = $2
 362                ",
 363            )
 364            .bind(&user_id)
 365            .bind(&signup_id)
 366            .execute(&mut tx)
 367            .await?;
 368
 369            if let Some(inviting_user_id) = inviting_user_id {
 370                let id: Option<UserId> = sqlx::query_scalar(
 371                    "
 372                    UPDATE users
 373                    SET invite_count = invite_count - 1
 374                    WHERE id = $1 AND invite_count > 0
 375                    RETURNING id
 376                    ",
 377                )
 378                .bind(&inviting_user_id)
 379                .fetch_optional(&mut tx)
 380                .await?;
 381
 382                if id.is_none() {
 383                    Err(Error::Http(
 384                        StatusCode::UNAUTHORIZED,
 385                        "no invites remaining".to_string(),
 386                    ))?;
 387                }
 388
 389                sqlx::query(
 390                    "
 391                    INSERT INTO contacts
 392                        (user_id_a, user_id_b, a_to_b, should_notify, accepted)
 393                    VALUES
 394                        ($1, $2, TRUE, TRUE, TRUE)
 395                    ON CONFLICT DO NOTHING
 396                    ",
 397                )
 398                .bind(inviting_user_id)
 399                .bind(user_id)
 400                .execute(&mut tx)
 401                .await?;
 402            }
 403
 404            tx.commit().await?;
 405            Ok(Some(NewUserResult {
 406                user_id,
 407                metrics_id,
 408                inviting_user_id,
 409                signup_device_id,
 410            }))
 411        })
 412        .await
 413    }
 414
 415    pub async fn create_signup(&self, signup: Signup) -> Result<()> {
 416        self.transact(|mut tx| async {
 417            sqlx::query(
 418                "
 419                INSERT INTO signups
 420                (
 421                    email_address,
 422                    email_confirmation_code,
 423                    email_confirmation_sent,
 424                    platform_linux,
 425                    platform_mac,
 426                    platform_windows,
 427                    platform_unknown,
 428                    editor_features,
 429                    programming_languages,
 430                    device_id
 431                )
 432                VALUES
 433                    ($1, $2, FALSE, $3, $4, $5, FALSE, $6, $7, $8)
 434                RETURNING id
 435                ",
 436            )
 437            .bind(&signup.email_address)
 438            .bind(&random_email_confirmation_code())
 439            .bind(&signup.platform_linux)
 440            .bind(&signup.platform_mac)
 441            .bind(&signup.platform_windows)
 442            .bind(&signup.editor_features)
 443            .bind(&signup.programming_languages)
 444            .bind(&signup.device_id)
 445            .execute(&mut tx)
 446            .await?;
 447            tx.commit().await?;
 448            Ok(())
 449        })
 450        .await
 451    }
 452
 453    pub async fn create_invite_from_code(
 454        &self,
 455        code: &str,
 456        email_address: &str,
 457        device_id: Option<&str>,
 458    ) -> Result<Invite> {
 459        self.transact(|mut tx| async {
 460            let existing_user: Option<UserId> = sqlx::query_scalar(
 461                "
 462                SELECT id
 463                FROM users
 464                WHERE email_address = $1
 465                ",
 466            )
 467            .bind(email_address)
 468            .fetch_optional(&mut tx)
 469            .await?;
 470            if existing_user.is_some() {
 471                Err(anyhow!("email address is already in use"))?;
 472            }
 473
 474            let row: Option<(UserId, i32)> = sqlx::query_as(
 475                "
 476                SELECT id, invite_count
 477                FROM users
 478                WHERE invite_code = $1
 479                ",
 480            )
 481            .bind(code)
 482            .fetch_optional(&mut tx)
 483            .await?;
 484
 485            let (inviter_id, invite_count) = match row {
 486                Some(row) => row,
 487                None => Err(Error::Http(
 488                    StatusCode::NOT_FOUND,
 489                    "invite code not found".to_string(),
 490                ))?,
 491            };
 492
 493            if invite_count == 0 {
 494                Err(Error::Http(
 495                    StatusCode::UNAUTHORIZED,
 496                    "no invites remaining".to_string(),
 497                ))?;
 498            }
 499
 500            let email_confirmation_code: String = sqlx::query_scalar(
 501                "
 502                INSERT INTO signups
 503                (
 504                    email_address,
 505                    email_confirmation_code,
 506                    email_confirmation_sent,
 507                    inviting_user_id,
 508                    platform_linux,
 509                    platform_mac,
 510                    platform_windows,
 511                    platform_unknown,
 512                    device_id
 513                )
 514                VALUES
 515                    ($1, $2, FALSE, $3, FALSE, FALSE, FALSE, TRUE, $4)
 516                ON CONFLICT (email_address)
 517                DO UPDATE SET
 518                    inviting_user_id = excluded.inviting_user_id
 519                RETURNING email_confirmation_code
 520                ",
 521            )
 522            .bind(&email_address)
 523            .bind(&random_email_confirmation_code())
 524            .bind(&inviter_id)
 525            .bind(&device_id)
 526            .fetch_one(&mut tx)
 527            .await?;
 528
 529            tx.commit().await?;
 530
 531            Ok(Invite {
 532                email_address: email_address.into(),
 533                email_confirmation_code,
 534            })
 535        })
 536        .await
 537    }
 538
 539    pub async fn record_sent_invites(&self, invites: &[Invite]) -> Result<()> {
 540        self.transact(|mut tx| async {
 541            let emails = invites
 542                .iter()
 543                .map(|s| s.email_address.as_str())
 544                .collect::<Vec<_>>();
 545            sqlx::query(
 546                "
 547                UPDATE signups
 548                SET email_confirmation_sent = TRUE
 549                WHERE email_address = ANY ($1)
 550                ",
 551            )
 552            .bind(&emails)
 553            .execute(&mut tx)
 554            .await?;
 555            tx.commit().await?;
 556            Ok(())
 557        })
 558        .await
 559    }
 560}
 561
 562impl<D> Db<D>
 563where
 564    Self: BeginTransaction<Database = D>,
 565    D: sqlx::Database + sqlx::migrate::MigrateDatabase,
 566    D::Connection: sqlx::migrate::Migrate,
 567    for<'a> <D as sqlx::database::HasArguments<'a>>::Arguments: sqlx::IntoArguments<'a, D>,
 568    for<'a> &'a mut D::Connection: sqlx::Executor<'a, Database = D>,
 569    for<'a, 'b> &'b mut sqlx::Transaction<'a, D>: sqlx::Executor<'b, Database = D>,
 570    D::QueryResult: RowsAffected,
 571    String: sqlx::Type<D>,
 572    i32: sqlx::Type<D>,
 573    i64: sqlx::Type<D>,
 574    bool: sqlx::Type<D>,
 575    str: sqlx::Type<D>,
 576    Uuid: sqlx::Type<D>,
 577    sqlx::types::Json<serde_json::Value>: sqlx::Type<D>,
 578    OffsetDateTime: sqlx::Type<D>,
 579    PrimitiveDateTime: sqlx::Type<D>,
 580    usize: sqlx::ColumnIndex<D::Row>,
 581    for<'a> &'a str: sqlx::ColumnIndex<D::Row>,
 582    for<'a> &'a str: sqlx::Encode<'a, D> + sqlx::Decode<'a, D>,
 583    for<'a> String: sqlx::Encode<'a, D> + sqlx::Decode<'a, D>,
 584    for<'a> Option<String>: sqlx::Encode<'a, D> + sqlx::Decode<'a, D>,
 585    for<'a> Option<&'a str>: sqlx::Encode<'a, D> + sqlx::Decode<'a, D>,
 586    for<'a> i32: sqlx::Encode<'a, D> + sqlx::Decode<'a, D>,
 587    for<'a> i64: sqlx::Encode<'a, D> + sqlx::Decode<'a, D>,
 588    for<'a> bool: sqlx::Encode<'a, D> + sqlx::Decode<'a, D>,
 589    for<'a> Uuid: sqlx::Encode<'a, D> + sqlx::Decode<'a, D>,
 590    for<'a> Option<ProjectId>: sqlx::Encode<'a, D> + sqlx::Decode<'a, D>,
 591    for<'a> sqlx::types::JsonValue: sqlx::Encode<'a, D> + sqlx::Decode<'a, D>,
 592    for<'a> OffsetDateTime: sqlx::Encode<'a, D> + sqlx::Decode<'a, D>,
 593    for<'a> PrimitiveDateTime: sqlx::Decode<'a, D> + sqlx::Decode<'a, D>,
 594{
 595    pub async fn migrate(
 596        &self,
 597        migrations_path: &Path,
 598        ignore_checksum_mismatch: bool,
 599    ) -> anyhow::Result<Vec<(Migration, Duration)>> {
 600        let migrations = MigrationSource::resolve(migrations_path)
 601            .await
 602            .map_err(|err| anyhow!("failed to load migrations: {err:?}"))?;
 603
 604        let mut conn = self.pool.acquire().await?;
 605
 606        conn.ensure_migrations_table().await?;
 607        let applied_migrations: HashMap<_, _> = conn
 608            .list_applied_migrations()
 609            .await?
 610            .into_iter()
 611            .map(|m| (m.version, m))
 612            .collect();
 613
 614        let mut new_migrations = Vec::new();
 615        for migration in migrations {
 616            match applied_migrations.get(&migration.version) {
 617                Some(applied_migration) => {
 618                    if migration.checksum != applied_migration.checksum && !ignore_checksum_mismatch
 619                    {
 620                        Err(anyhow!(
 621                            "checksum mismatch for applied migration {}",
 622                            migration.description
 623                        ))?;
 624                    }
 625                }
 626                None => {
 627                    let elapsed = conn.apply(&migration).await?;
 628                    new_migrations.push((migration, elapsed));
 629                }
 630            }
 631        }
 632
 633        Ok(new_migrations)
 634    }
 635
 636    pub fn fuzzy_like_string(string: &str) -> String {
 637        let mut result = String::with_capacity(string.len() * 2 + 1);
 638        for c in string.chars() {
 639            if c.is_alphanumeric() {
 640                result.push('%');
 641                result.push(c);
 642            }
 643        }
 644        result.push('%');
 645        result
 646    }
 647
 648    // users
 649
 650    pub async fn get_all_users(&self, page: u32, limit: u32) -> Result<Vec<User>> {
 651        self.transact(|tx| async {
 652            let mut tx = tx;
 653            let query = "SELECT * FROM users ORDER BY github_login ASC LIMIT $1 OFFSET $2";
 654            Ok(sqlx::query_as(query)
 655                .bind(limit as i32)
 656                .bind((page * limit) as i32)
 657                .fetch_all(&mut tx)
 658                .await?)
 659        })
 660        .await
 661    }
 662
 663    pub async fn get_user_by_id(&self, id: UserId) -> Result<Option<User>> {
 664        self.transact(|tx| async {
 665            let mut tx = tx;
 666            let query = "
 667                SELECT users.*
 668                FROM users
 669                WHERE id = $1
 670                LIMIT 1
 671            ";
 672            Ok(sqlx::query_as(query)
 673                .bind(&id)
 674                .fetch_optional(&mut tx)
 675                .await?)
 676        })
 677        .await
 678    }
 679
 680    pub async fn get_users_with_no_invites(
 681        &self,
 682        invited_by_another_user: bool,
 683    ) -> Result<Vec<User>> {
 684        self.transact(|tx| async {
 685            let mut tx = tx;
 686            let query = format!(
 687                "
 688                SELECT users.*
 689                FROM users
 690                WHERE invite_count = 0
 691                AND inviter_id IS{} NULL
 692                ",
 693                if invited_by_another_user { " NOT" } else { "" }
 694            );
 695
 696            Ok(sqlx::query_as(&query).fetch_all(&mut tx).await?)
 697        })
 698        .await
 699    }
 700
 701    pub async fn get_user_by_github_account(
 702        &self,
 703        github_login: &str,
 704        github_user_id: Option<i32>,
 705    ) -> Result<Option<User>> {
 706        self.transact(|tx| async {
 707            let mut tx = tx;
 708            if let Some(github_user_id) = github_user_id {
 709                let mut user = sqlx::query_as::<_, User>(
 710                    "
 711                    UPDATE users
 712                    SET github_login = $1
 713                    WHERE github_user_id = $2
 714                    RETURNING *
 715                    ",
 716                )
 717                .bind(github_login)
 718                .bind(github_user_id)
 719                .fetch_optional(&mut tx)
 720                .await?;
 721
 722                if user.is_none() {
 723                    user = sqlx::query_as::<_, User>(
 724                        "
 725                        UPDATE users
 726                        SET github_user_id = $1
 727                        WHERE github_login = $2
 728                        RETURNING *
 729                        ",
 730                    )
 731                    .bind(github_user_id)
 732                    .bind(github_login)
 733                    .fetch_optional(&mut tx)
 734                    .await?;
 735                }
 736
 737                Ok(user)
 738            } else {
 739                let user = sqlx::query_as(
 740                    "
 741                    SELECT * FROM users
 742                    WHERE github_login = $1
 743                    LIMIT 1
 744                    ",
 745                )
 746                .bind(github_login)
 747                .fetch_optional(&mut tx)
 748                .await?;
 749                Ok(user)
 750            }
 751        })
 752        .await
 753    }
 754
 755    pub async fn set_user_is_admin(&self, id: UserId, is_admin: bool) -> Result<()> {
 756        self.transact(|mut tx| async {
 757            let query = "UPDATE users SET admin = $1 WHERE id = $2";
 758            sqlx::query(query)
 759                .bind(is_admin)
 760                .bind(id.0)
 761                .execute(&mut tx)
 762                .await?;
 763            tx.commit().await?;
 764            Ok(())
 765        })
 766        .await
 767    }
 768
 769    pub async fn set_user_connected_once(&self, id: UserId, connected_once: bool) -> Result<()> {
 770        self.transact(|mut tx| async move {
 771            let query = "UPDATE users SET connected_once = $1 WHERE id = $2";
 772            sqlx::query(query)
 773                .bind(connected_once)
 774                .bind(id.0)
 775                .execute(&mut tx)
 776                .await?;
 777            tx.commit().await?;
 778            Ok(())
 779        })
 780        .await
 781    }
 782
 783    pub async fn destroy_user(&self, id: UserId) -> Result<()> {
 784        self.transact(|mut tx| async move {
 785            let query = "DELETE FROM access_tokens WHERE user_id = $1;";
 786            sqlx::query(query)
 787                .bind(id.0)
 788                .execute(&mut tx)
 789                .await
 790                .map(drop)?;
 791            let query = "DELETE FROM users WHERE id = $1;";
 792            sqlx::query(query).bind(id.0).execute(&mut tx).await?;
 793            tx.commit().await?;
 794            Ok(())
 795        })
 796        .await
 797    }
 798
 799    // signups
 800
 801    pub async fn get_waitlist_summary(&self) -> Result<WaitlistSummary> {
 802        self.transact(|mut tx| async move {
 803            Ok(sqlx::query_as(
 804                "
 805                SELECT
 806                    COUNT(*) as count,
 807                    COALESCE(SUM(CASE WHEN platform_linux THEN 1 ELSE 0 END), 0) as linux_count,
 808                    COALESCE(SUM(CASE WHEN platform_mac THEN 1 ELSE 0 END), 0) as mac_count,
 809                    COALESCE(SUM(CASE WHEN platform_windows THEN 1 ELSE 0 END), 0) as windows_count,
 810                    COALESCE(SUM(CASE WHEN platform_unknown THEN 1 ELSE 0 END), 0) as unknown_count
 811                FROM (
 812                    SELECT *
 813                    FROM signups
 814                    WHERE
 815                        NOT email_confirmation_sent
 816                ) AS unsent
 817                ",
 818            )
 819            .fetch_one(&mut tx)
 820            .await?)
 821        })
 822        .await
 823    }
 824
 825    pub async fn get_unsent_invites(&self, count: usize) -> Result<Vec<Invite>> {
 826        self.transact(|mut tx| async move {
 827            Ok(sqlx::query_as(
 828                "
 829                SELECT
 830                    email_address, email_confirmation_code
 831                FROM signups
 832                WHERE
 833                    NOT email_confirmation_sent AND
 834                    (platform_mac OR platform_unknown)
 835                LIMIT $1
 836                ",
 837            )
 838            .bind(count as i32)
 839            .fetch_all(&mut tx)
 840            .await?)
 841        })
 842        .await
 843    }
 844
 845    // invite codes
 846
 847    pub async fn set_invite_count_for_user(&self, id: UserId, count: u32) -> Result<()> {
 848        self.transact(|mut tx| async move {
 849            if count > 0 {
 850                sqlx::query(
 851                    "
 852                    UPDATE users
 853                    SET invite_code = $1
 854                    WHERE id = $2 AND invite_code IS NULL
 855                ",
 856                )
 857                .bind(random_invite_code())
 858                .bind(id)
 859                .execute(&mut tx)
 860                .await?;
 861            }
 862
 863            sqlx::query(
 864                "
 865                UPDATE users
 866                SET invite_count = $1
 867                WHERE id = $2
 868                ",
 869            )
 870            .bind(count as i32)
 871            .bind(id)
 872            .execute(&mut tx)
 873            .await?;
 874            tx.commit().await?;
 875            Ok(())
 876        })
 877        .await
 878    }
 879
 880    pub async fn get_invite_code_for_user(&self, id: UserId) -> Result<Option<(String, u32)>> {
 881        self.transact(|mut tx| async move {
 882            let result: Option<(String, i32)> = sqlx::query_as(
 883                "
 884                    SELECT invite_code, invite_count
 885                    FROM users
 886                    WHERE id = $1 AND invite_code IS NOT NULL 
 887                ",
 888            )
 889            .bind(id)
 890            .fetch_optional(&mut tx)
 891            .await?;
 892            if let Some((code, count)) = result {
 893                Ok(Some((code, count.try_into().map_err(anyhow::Error::new)?)))
 894            } else {
 895                Ok(None)
 896            }
 897        })
 898        .await
 899    }
 900
 901    pub async fn get_user_for_invite_code(&self, code: &str) -> Result<User> {
 902        self.transact(|tx| async {
 903            let mut tx = tx;
 904            sqlx::query_as(
 905                "
 906                    SELECT *
 907                    FROM users
 908                    WHERE invite_code = $1
 909                ",
 910            )
 911            .bind(code)
 912            .fetch_optional(&mut tx)
 913            .await?
 914            .ok_or_else(|| {
 915                Error::Http(
 916                    StatusCode::NOT_FOUND,
 917                    "that invite code does not exist".to_string(),
 918                )
 919            })
 920        })
 921        .await
 922    }
 923
 924    pub async fn create_room(
 925        &self,
 926        user_id: UserId,
 927        connection_id: ConnectionId,
 928    ) -> Result<proto::Room> {
 929        self.transact(|mut tx| async move {
 930            let live_kit_room = nanoid::nanoid!(30);
 931            let room_id = sqlx::query_scalar(
 932                "
 933                INSERT INTO rooms (live_kit_room, version)
 934                VALUES ($1, $2)
 935                RETURNING id
 936                ",
 937            )
 938            .bind(&live_kit_room)
 939            .bind(0)
 940            .fetch_one(&mut tx)
 941            .await
 942            .map(RoomId)?;
 943
 944            sqlx::query(
 945                "
 946                INSERT INTO room_participants (room_id, user_id, answering_connection_id, calling_user_id, calling_connection_id)
 947                VALUES ($1, $2, $3, $4, $5)
 948                ",
 949            )
 950            .bind(room_id)
 951            .bind(user_id)
 952            .bind(connection_id.0 as i32)
 953            .bind(user_id)
 954            .bind(connection_id.0 as i32)
 955            .execute(&mut tx)
 956            .await?;
 957
 958            self.commit_room_transaction(room_id, tx).await
 959        }).await
 960    }
 961
 962    pub async fn call(
 963        &self,
 964        room_id: RoomId,
 965        calling_user_id: UserId,
 966        calling_connection_id: ConnectionId,
 967        called_user_id: UserId,
 968        initial_project_id: Option<ProjectId>,
 969    ) -> Result<(proto::Room, proto::IncomingCall)> {
 970        self.transact(|mut tx| async move {
 971            sqlx::query(
 972                "
 973                INSERT INTO room_participants (room_id, user_id, calling_user_id, calling_connection_id, initial_project_id)
 974                VALUES ($1, $2, $3, $4, $5)
 975                ",
 976            )
 977            .bind(room_id)
 978            .bind(called_user_id)
 979            .bind(calling_user_id)
 980            .bind(calling_connection_id.0 as i32)
 981            .bind(initial_project_id)
 982            .execute(&mut tx)
 983            .await?;
 984
 985            let room = self.commit_room_transaction(room_id, tx).await?;
 986            let incoming_call = Self::build_incoming_call(&room, called_user_id)
 987                .ok_or_else(|| anyhow!("failed to build incoming call"))?;
 988            Ok((room, incoming_call))
 989        }).await
 990    }
 991
 992    pub async fn incoming_call_for_user(
 993        &self,
 994        user_id: UserId,
 995    ) -> Result<Option<proto::IncomingCall>> {
 996        self.transact(|mut tx| async move {
 997            let room_id = sqlx::query_scalar::<_, RoomId>(
 998                "
 999                SELECT room_id
1000                FROM room_participants
1001                WHERE user_id = $1 AND answering_connection_id IS NULL
1002                ",
1003            )
1004            .bind(user_id)
1005            .fetch_optional(&mut tx)
1006            .await?;
1007
1008            if let Some(room_id) = room_id {
1009                let room = self.get_room(room_id, &mut tx).await?;
1010                Ok(Self::build_incoming_call(&room, user_id))
1011            } else {
1012                Ok(None)
1013            }
1014        })
1015        .await
1016    }
1017
1018    fn build_incoming_call(
1019        room: &proto::Room,
1020        called_user_id: UserId,
1021    ) -> Option<proto::IncomingCall> {
1022        let pending_participant = room
1023            .pending_participants
1024            .iter()
1025            .find(|participant| participant.user_id == called_user_id.to_proto())?;
1026
1027        Some(proto::IncomingCall {
1028            room_id: room.id,
1029            calling_user_id: pending_participant.calling_user_id,
1030            participant_user_ids: room
1031                .participants
1032                .iter()
1033                .map(|participant| participant.user_id)
1034                .collect(),
1035            initial_project: room.participants.iter().find_map(|participant| {
1036                let initial_project_id = pending_participant.initial_project_id?;
1037                participant
1038                    .projects
1039                    .iter()
1040                    .find(|project| project.id == initial_project_id)
1041                    .cloned()
1042            }),
1043        })
1044    }
1045
1046    pub async fn call_failed(
1047        &self,
1048        room_id: RoomId,
1049        called_user_id: UserId,
1050    ) -> Result<proto::Room> {
1051        self.transact(|mut tx| async move {
1052            sqlx::query(
1053                "
1054                DELETE FROM room_participants
1055                WHERE room_id = $1 AND user_id = $2
1056                ",
1057            )
1058            .bind(room_id)
1059            .bind(called_user_id)
1060            .execute(&mut tx)
1061            .await?;
1062
1063            self.commit_room_transaction(room_id, tx).await
1064        })
1065        .await
1066    }
1067
1068    pub async fn decline_call(
1069        &self,
1070        expected_room_id: Option<RoomId>,
1071        user_id: UserId,
1072    ) -> Result<proto::Room> {
1073        self.transact(|mut tx| async move {
1074            let room_id = sqlx::query_scalar(
1075                "
1076                DELETE FROM room_participants
1077                WHERE user_id = $1 AND answering_connection_id IS NULL
1078                RETURNING room_id
1079                ",
1080            )
1081            .bind(user_id)
1082            .fetch_one(&mut tx)
1083            .await?;
1084            if expected_room_id.map_or(false, |expected_room_id| expected_room_id != room_id) {
1085                return Err(anyhow!("declining call on unexpected room"))?;
1086            }
1087
1088            self.commit_room_transaction(room_id, tx).await
1089        })
1090        .await
1091    }
1092
1093    pub async fn cancel_call(
1094        &self,
1095        expected_room_id: Option<RoomId>,
1096        calling_connection_id: ConnectionId,
1097        called_user_id: UserId,
1098    ) -> Result<proto::Room> {
1099        self.transact(|mut tx| async move {
1100            let room_id = sqlx::query_scalar(
1101                "
1102                DELETE FROM room_participants
1103                WHERE user_id = $1 AND calling_connection_id = $2 AND answering_connection_id IS NULL
1104                RETURNING room_id
1105                ",
1106            )
1107            .bind(called_user_id)
1108            .bind(calling_connection_id.0 as i32)
1109            .fetch_one(&mut tx)
1110            .await?;
1111            if expected_room_id.map_or(false, |expected_room_id| expected_room_id != room_id) {
1112                return Err(anyhow!("canceling call on unexpected room"))?;
1113            }
1114
1115            self.commit_room_transaction(room_id, tx).await
1116        }).await
1117    }
1118
1119    pub async fn join_room(
1120        &self,
1121        room_id: RoomId,
1122        user_id: UserId,
1123        connection_id: ConnectionId,
1124    ) -> Result<proto::Room> {
1125        self.transact(|mut tx| async move {
1126            sqlx::query(
1127                "
1128                UPDATE room_participants 
1129                SET answering_connection_id = $1
1130                WHERE room_id = $2 AND user_id = $3
1131                RETURNING 1
1132                ",
1133            )
1134            .bind(connection_id.0 as i32)
1135            .bind(room_id)
1136            .bind(user_id)
1137            .fetch_one(&mut tx)
1138            .await?;
1139            self.commit_room_transaction(room_id, tx).await
1140        })
1141        .await
1142    }
1143
1144    pub async fn leave_room_for_connection(
1145        &self,
1146        connection_id: ConnectionId,
1147    ) -> Result<Option<LeftRoom>> {
1148        self.transact(|mut tx| async move {
1149            // Leave room.
1150            let room_id = sqlx::query_scalar::<_, RoomId>(
1151                "
1152                DELETE FROM room_participants
1153                WHERE answering_connection_id = $1
1154                RETURNING room_id
1155                ",
1156            )
1157            .bind(connection_id.0 as i32)
1158            .fetch_optional(&mut tx)
1159            .await?;
1160
1161            if let Some(room_id) = room_id {
1162                // Cancel pending calls initiated by the leaving user.
1163                let canceled_calls_to_user_ids: Vec<UserId> = sqlx::query_scalar(
1164                    "
1165                    DELETE FROM room_participants
1166                    WHERE calling_connection_id = $1 AND answering_connection_id IS NULL
1167                    RETURNING user_id
1168                    ",
1169                )
1170                .bind(connection_id.0 as i32)
1171                .fetch_all(&mut tx)
1172                .await?;
1173
1174                let project_ids = sqlx::query_scalar::<_, ProjectId>(
1175                    "
1176                    SELECT project_id
1177                    FROM project_collaborators
1178                    WHERE connection_id = $1
1179                    ",
1180                )
1181                .bind(connection_id.0 as i32)
1182                .fetch_all(&mut tx)
1183                .await?;
1184
1185                // Leave projects.
1186                let mut left_projects = HashMap::default();
1187                if !project_ids.is_empty() {
1188                    let mut params = "?,".repeat(project_ids.len());
1189                    params.pop();
1190                    let query = format!(
1191                        "
1192                        SELECT *
1193                        FROM project_collaborators
1194                        WHERE project_id IN ({params})
1195                    "
1196                    );
1197                    let mut query = sqlx::query_as::<_, ProjectCollaborator>(&query);
1198                    for project_id in project_ids {
1199                        query = query.bind(project_id);
1200                    }
1201
1202                    let mut project_collaborators = query.fetch(&mut tx);
1203                    while let Some(collaborator) = project_collaborators.next().await {
1204                        let collaborator = collaborator?;
1205                        let left_project =
1206                            left_projects
1207                                .entry(collaborator.project_id)
1208                                .or_insert(LeftProject {
1209                                    id: collaborator.project_id,
1210                                    host_user_id: Default::default(),
1211                                    connection_ids: Default::default(),
1212                                });
1213
1214                        let collaborator_connection_id =
1215                            ConnectionId(collaborator.connection_id as u32);
1216                        if collaborator_connection_id != connection_id {
1217                            left_project.connection_ids.push(collaborator_connection_id);
1218                        }
1219
1220                        if collaborator.is_host {
1221                            left_project.host_user_id = collaborator.user_id;
1222                        }
1223                    }
1224                }
1225                sqlx::query(
1226                    "
1227                    DELETE FROM project_collaborators
1228                    WHERE connection_id = $1
1229                    ",
1230                )
1231                .bind(connection_id.0 as i32)
1232                .execute(&mut tx)
1233                .await?;
1234
1235                // Unshare projects.
1236                sqlx::query(
1237                    "
1238                    DELETE FROM projects
1239                    WHERE room_id = $1 AND host_connection_id = $2
1240                    ",
1241                )
1242                .bind(room_id)
1243                .bind(connection_id.0 as i32)
1244                .execute(&mut tx)
1245                .await?;
1246
1247                let room = self.commit_room_transaction(room_id, tx).await?;
1248                Ok(Some(LeftRoom {
1249                    room,
1250                    left_projects,
1251                    canceled_calls_to_user_ids,
1252                }))
1253            } else {
1254                Ok(None)
1255            }
1256        })
1257        .await
1258    }
1259
1260    pub async fn update_room_participant_location(
1261        &self,
1262        room_id: RoomId,
1263        connection_id: ConnectionId,
1264        location: proto::ParticipantLocation,
1265    ) -> Result<proto::Room> {
1266        self.transact(|tx| async {
1267            let mut tx = tx;
1268            let location_kind;
1269            let location_project_id;
1270            match location
1271                .variant
1272                .as_ref()
1273                .ok_or_else(|| anyhow!("invalid location"))?
1274            {
1275                proto::participant_location::Variant::SharedProject(project) => {
1276                    location_kind = 0;
1277                    location_project_id = Some(ProjectId::from_proto(project.id));
1278                }
1279                proto::participant_location::Variant::UnsharedProject(_) => {
1280                    location_kind = 1;
1281                    location_project_id = None;
1282                }
1283                proto::participant_location::Variant::External(_) => {
1284                    location_kind = 2;
1285                    location_project_id = None;
1286                }
1287            }
1288
1289            sqlx::query(
1290                "
1291                UPDATE room_participants
1292                SET location_kind = $1, location_project_id = $2
1293                WHERE room_id = $3 AND answering_connection_id = $4
1294                RETURNING 1
1295                ",
1296            )
1297            .bind(location_kind)
1298            .bind(location_project_id)
1299            .bind(room_id)
1300            .bind(connection_id.0 as i32)
1301            .fetch_one(&mut tx)
1302            .await?;
1303
1304            self.commit_room_transaction(room_id, tx).await
1305        })
1306        .await
1307    }
1308
1309    async fn commit_room_transaction(
1310        &self,
1311        room_id: RoomId,
1312        mut tx: sqlx::Transaction<'_, D>,
1313    ) -> Result<proto::Room> {
1314        sqlx::query(
1315            "
1316            UPDATE rooms
1317            SET version = version + 1
1318            WHERE id = $1
1319            ",
1320        )
1321        .bind(room_id)
1322        .execute(&mut tx)
1323        .await?;
1324        let room = self.get_room(room_id, &mut tx).await?;
1325        tx.commit().await?;
1326
1327        Ok(room)
1328    }
1329
1330    async fn get_room(
1331        &self,
1332        room_id: RoomId,
1333        tx: &mut sqlx::Transaction<'_, D>,
1334    ) -> Result<proto::Room> {
1335        let room: Room = sqlx::query_as(
1336            "
1337            SELECT *
1338            FROM rooms
1339            WHERE id = $1
1340            ",
1341        )
1342        .bind(room_id)
1343        .fetch_one(&mut *tx)
1344        .await?;
1345
1346        let mut db_participants =
1347            sqlx::query_as::<_, (UserId, Option<i32>, Option<i32>, Option<ProjectId>, UserId, Option<ProjectId>)>(
1348                "
1349                SELECT user_id, answering_connection_id, location_kind, location_project_id, calling_user_id, initial_project_id
1350                FROM room_participants
1351                WHERE room_id = $1
1352                ",
1353            )
1354            .bind(room_id)
1355            .fetch(&mut *tx);
1356
1357        let mut participants = HashMap::default();
1358        let mut pending_participants = Vec::new();
1359        while let Some(participant) = db_participants.next().await {
1360            let (
1361                user_id,
1362                answering_connection_id,
1363                location_kind,
1364                location_project_id,
1365                calling_user_id,
1366                initial_project_id,
1367            ) = participant?;
1368            if let Some(answering_connection_id) = answering_connection_id {
1369                let location = match (location_kind, location_project_id) {
1370                    (Some(0), Some(project_id)) => {
1371                        Some(proto::participant_location::Variant::SharedProject(
1372                            proto::participant_location::SharedProject {
1373                                id: project_id.to_proto(),
1374                            },
1375                        ))
1376                    }
1377                    (Some(1), _) => Some(proto::participant_location::Variant::UnsharedProject(
1378                        Default::default(),
1379                    )),
1380                    _ => Some(proto::participant_location::Variant::External(
1381                        Default::default(),
1382                    )),
1383                };
1384                participants.insert(
1385                    answering_connection_id,
1386                    proto::Participant {
1387                        user_id: user_id.to_proto(),
1388                        peer_id: answering_connection_id as u32,
1389                        projects: Default::default(),
1390                        location: Some(proto::ParticipantLocation { variant: location }),
1391                    },
1392                );
1393            } else {
1394                pending_participants.push(proto::PendingParticipant {
1395                    user_id: user_id.to_proto(),
1396                    calling_user_id: calling_user_id.to_proto(),
1397                    initial_project_id: initial_project_id.map(|id| id.to_proto()),
1398                });
1399            }
1400        }
1401        drop(db_participants);
1402
1403        let mut rows = sqlx::query_as::<_, (i32, ProjectId, Option<String>)>(
1404            "
1405            SELECT host_connection_id, projects.id, worktrees.root_name
1406            FROM projects
1407            LEFT JOIN worktrees ON projects.id = worktrees.project_id
1408            WHERE room_id = $1
1409            ",
1410        )
1411        .bind(room_id)
1412        .fetch(&mut *tx);
1413
1414        while let Some(row) = rows.next().await {
1415            let (connection_id, project_id, worktree_root_name) = row?;
1416            if let Some(participant) = participants.get_mut(&connection_id) {
1417                let project = if let Some(project) = participant
1418                    .projects
1419                    .iter_mut()
1420                    .find(|project| project.id == project_id.to_proto())
1421                {
1422                    project
1423                } else {
1424                    participant.projects.push(proto::ParticipantProject {
1425                        id: project_id.to_proto(),
1426                        worktree_root_names: Default::default(),
1427                    });
1428                    participant.projects.last_mut().unwrap()
1429                };
1430                project.worktree_root_names.extend(worktree_root_name);
1431            }
1432        }
1433
1434        Ok(proto::Room {
1435            id: room.id.to_proto(),
1436            version: room.version as u64,
1437            live_kit_room: room.live_kit_room,
1438            participants: participants.into_values().collect(),
1439            pending_participants,
1440        })
1441    }
1442
1443    // projects
1444
1445    pub async fn share_project(
1446        &self,
1447        expected_room_id: RoomId,
1448        connection_id: ConnectionId,
1449        worktrees: &[proto::WorktreeMetadata],
1450    ) -> Result<(ProjectId, proto::Room)> {
1451        self.transact(|mut tx| async move {
1452            let (room_id, user_id) = sqlx::query_as::<_, (RoomId, UserId)>(
1453                "
1454                SELECT room_id, user_id
1455                FROM room_participants
1456                WHERE answering_connection_id = $1
1457                ",
1458            )
1459            .bind(connection_id.0 as i32)
1460            .fetch_one(&mut tx)
1461            .await?;
1462            if room_id != expected_room_id {
1463                return Err(anyhow!("shared project on unexpected room"))?;
1464            }
1465
1466            let project_id: ProjectId = sqlx::query_scalar(
1467                "
1468                INSERT INTO projects (room_id, host_user_id, host_connection_id)
1469                VALUES ($1, $2, $3)
1470                RETURNING id
1471                ",
1472            )
1473            .bind(room_id)
1474            .bind(user_id)
1475            .bind(connection_id.0 as i32)
1476            .fetch_one(&mut tx)
1477            .await?;
1478
1479            if !worktrees.is_empty() {
1480                let mut params = "(?, ?, ?, ?, ?, ?, ?),".repeat(worktrees.len());
1481                params.pop();
1482                let query = format!(
1483                    "
1484                    INSERT INTO worktrees (
1485                        project_id,
1486                        id,
1487                        root_name,
1488                        abs_path,
1489                        visible,
1490                        scan_id,
1491                        is_complete
1492                    )
1493                    VALUES {params}
1494                    "
1495                );
1496
1497                let mut query = sqlx::query(&query);
1498                for worktree in worktrees {
1499                    query = query
1500                        .bind(project_id)
1501                        .bind(worktree.id as i32)
1502                        .bind(&worktree.root_name)
1503                        .bind(&worktree.abs_path)
1504                        .bind(worktree.visible)
1505                        .bind(0)
1506                        .bind(false);
1507                }
1508                query.execute(&mut tx).await?;
1509            }
1510
1511            sqlx::query(
1512                "
1513                INSERT INTO project_collaborators (
1514                    project_id,
1515                    connection_id,
1516                    user_id,
1517                    replica_id,
1518                    is_host
1519                )
1520                VALUES ($1, $2, $3, $4, $5)
1521                ",
1522            )
1523            .bind(project_id)
1524            .bind(connection_id.0 as i32)
1525            .bind(user_id)
1526            .bind(0)
1527            .bind(true)
1528            .execute(&mut tx)
1529            .await?;
1530
1531            let room = self.commit_room_transaction(room_id, tx).await?;
1532            Ok((project_id, room))
1533        })
1534        .await
1535    }
1536
1537    pub async fn update_project(
1538        &self,
1539        project_id: ProjectId,
1540        connection_id: ConnectionId,
1541        worktrees: &[proto::WorktreeMetadata],
1542    ) -> Result<(proto::Room, Vec<ConnectionId>)> {
1543        self.transact(|mut tx| async move {
1544            let room_id: RoomId = sqlx::query_scalar(
1545                "
1546                SELECT room_id
1547                FROM projects
1548                WHERE id = $1 AND host_connection_id = $2
1549                ",
1550            )
1551            .bind(project_id)
1552            .bind(connection_id.0 as i32)
1553            .fetch_one(&mut tx)
1554            .await?;
1555
1556            if !worktrees.is_empty() {
1557                let mut params = "(?, ?, ?, ?, ?, ?, ?),".repeat(worktrees.len());
1558                params.pop();
1559                let query = format!(
1560                    "
1561                    INSERT INTO worktrees (
1562                        project_id,
1563                        id,
1564                        root_name,
1565                        abs_path,
1566                        visible,
1567                        scan_id,
1568                        is_complete
1569                    )
1570                    VALUES ${params}
1571                    ON CONFLICT (project_id, id) DO UPDATE SET root_name = excluded.root_name
1572                    "
1573                );
1574
1575                let mut query = sqlx::query(&query);
1576                for worktree in worktrees {
1577                    query = query
1578                        .bind(project_id)
1579                        .bind(worktree.id as i32)
1580                        .bind(&worktree.root_name)
1581                        .bind(&worktree.abs_path)
1582                        .bind(worktree.visible)
1583                        .bind(0)
1584                        .bind(false)
1585                }
1586                query.execute(&mut tx).await?;
1587            }
1588
1589            let mut params = "?,".repeat(worktrees.len());
1590            if !worktrees.is_empty() {
1591                params.pop();
1592            }
1593            let query = format!(
1594                "
1595                DELETE FROM worktrees
1596                WHERE project_id = ? AND id NOT IN ({params})
1597                ",
1598            );
1599
1600            let mut query = sqlx::query(&query).bind(project_id);
1601            for worktree in worktrees {
1602                query = query.bind(WorktreeId(worktree.id as i32));
1603            }
1604            query.execute(&mut tx).await?;
1605
1606            let mut guest_connection_ids = Vec::new();
1607            {
1608                let mut db_guest_connection_ids = sqlx::query_scalar::<_, i32>(
1609                    "
1610                    SELECT connection_id
1611                    FROM project_collaborators
1612                    WHERE project_id = $1 AND is_host = FALSE
1613                    ",
1614                )
1615                .bind(project_id)
1616                .fetch(&mut tx);
1617                while let Some(connection_id) = db_guest_connection_ids.next().await {
1618                    guest_connection_ids.push(ConnectionId(connection_id? as u32));
1619                }
1620            }
1621
1622            let room = self.commit_room_transaction(room_id, tx).await?;
1623            Ok((room, guest_connection_ids))
1624        })
1625        .await
1626    }
1627
1628    pub async fn update_worktree(
1629        &self,
1630        update: &proto::UpdateWorktree,
1631        connection_id: ConnectionId,
1632    ) -> Result<Vec<ConnectionId>> {
1633        self.transact(|mut tx| async move {
1634            let project_id = ProjectId::from_proto(update.project_id);
1635            let worktree_id = WorktreeId::from_proto(update.worktree_id);
1636
1637            // Ensure the update comes from the host.
1638            sqlx::query(
1639                "
1640                SELECT 1
1641                FROM projects
1642                WHERE id = $1 AND host_connection_id = $2
1643                ",
1644            )
1645            .bind(project_id)
1646            .bind(connection_id.0 as i32)
1647            .fetch_one(&mut tx)
1648            .await?;
1649
1650            // Update metadata.
1651            sqlx::query(
1652                "
1653                UPDATE worktrees
1654                SET
1655                    root_name = $1,
1656                    scan_id = $2,
1657                    is_complete = $3,
1658                    abs_path = $4
1659                WHERE project_id = $5 AND id = $6
1660                RETURNING 1
1661                ",
1662            )
1663            .bind(&update.root_name)
1664            .bind(update.scan_id as i64)
1665            .bind(update.is_last_update)
1666            .bind(&update.abs_path)
1667            .bind(project_id)
1668            .bind(worktree_id)
1669            .fetch_one(&mut tx)
1670            .await?;
1671
1672            if !update.updated_entries.is_empty() {
1673                let mut params =
1674                    "(?, ?, ?, ?, ?, ?, ?, ?, ?, ?),".repeat(update.updated_entries.len());
1675                params.pop();
1676
1677                let query = format!(
1678                    "
1679                    INSERT INTO worktree_entries (
1680                        project_id, 
1681                        worktree_id, 
1682                        id, 
1683                        is_dir, 
1684                        path, 
1685                        inode,
1686                        mtime_seconds, 
1687                        mtime_nanos, 
1688                        is_symlink, 
1689                        is_ignored
1690                    )
1691                    VALUES {params}
1692                    ON CONFLICT (project_id, worktree_id, id) DO UPDATE SET
1693                        is_dir = excluded.is_dir,
1694                        path = excluded.path,
1695                        inode = excluded.inode,
1696                        mtime_seconds = excluded.mtime_seconds,
1697                        mtime_nanos = excluded.mtime_nanos,
1698                        is_symlink = excluded.is_symlink,
1699                        is_ignored = excluded.is_ignored
1700                    "
1701                );
1702                let mut query = sqlx::query(&query);
1703                for entry in &update.updated_entries {
1704                    let mtime = entry.mtime.clone().unwrap_or_default();
1705                    query = query
1706                        .bind(project_id)
1707                        .bind(worktree_id)
1708                        .bind(entry.id as i64)
1709                        .bind(entry.is_dir)
1710                        .bind(&entry.path)
1711                        .bind(entry.inode as i64)
1712                        .bind(mtime.seconds as i64)
1713                        .bind(mtime.nanos as i32)
1714                        .bind(entry.is_symlink)
1715                        .bind(entry.is_ignored);
1716                }
1717                query.execute(&mut tx).await?;
1718            }
1719
1720            if !update.removed_entries.is_empty() {
1721                let mut params = "?,".repeat(update.removed_entries.len());
1722                params.pop();
1723                let query = format!(
1724                    "
1725                    DELETE FROM worktree_entries
1726                    WHERE project_id = ? AND worktree_id = ? AND entry_id IN ({params})
1727                    "
1728                );
1729
1730                let mut query = sqlx::query(&query).bind(project_id).bind(worktree_id);
1731                for entry_id in &update.removed_entries {
1732                    query = query.bind(*entry_id as i64);
1733                }
1734                query.execute(&mut tx).await?;
1735            }
1736
1737            let connection_ids = sqlx::query_scalar::<_, i32>(
1738                "
1739                SELECT connection_id
1740                FROM project_collaborators
1741                WHERE project_id = $1 AND connection_id != $2
1742                ",
1743            )
1744            .bind(project_id)
1745            .bind(connection_id.0 as i32)
1746            .fetch_all(&mut tx)
1747            .await?;
1748
1749            tx.commit().await?;
1750
1751            Ok(connection_ids
1752                .into_iter()
1753                .map(|connection_id| ConnectionId(connection_id as u32))
1754                .collect())
1755        })
1756        .await
1757    }
1758
1759    pub async fn update_diagnostic_summary(
1760        &self,
1761        update: &proto::UpdateDiagnosticSummary,
1762        connection_id: ConnectionId,
1763    ) -> Result<Vec<ConnectionId>> {
1764        self.transact(|mut tx| async {
1765            let project_id = ProjectId::from_proto(update.project_id);
1766            let worktree_id = WorktreeId::from_proto(update.worktree_id);
1767            let summary = update
1768                .summary
1769                .as_ref()
1770                .ok_or_else(|| anyhow!("invalid summary"))?;
1771
1772            // Ensure the update comes from the host.
1773            sqlx::query(
1774                "
1775                SELECT 1
1776                FROM projects
1777                WHERE id = $1 AND host_connection_id = $2
1778                ",
1779            )
1780            .bind(project_id)
1781            .bind(connection_id.0 as i32)
1782            .fetch_one(&mut tx)
1783            .await?;
1784
1785            // Update summary.
1786            sqlx::query(
1787                "
1788                INSERT INTO worktree_diagnostic_summaries (
1789                    project_id,
1790                    worktree_id,
1791                    path,
1792                    language_server_id,
1793                    error_count,
1794                    warning_count
1795                )
1796                VALUES ($1, $2, $3, $4, $5, $6)
1797                ON CONFLICT (project_id, worktree_id, path) DO UPDATE SET
1798                    language_server_id = excluded.language_server_id,
1799                    error_count = excluded.error_count, 
1800                    warning_count = excluded.warning_count
1801                ",
1802            )
1803            .bind(project_id)
1804            .bind(worktree_id)
1805            .bind(&summary.path)
1806            .bind(summary.language_server_id as i64)
1807            .bind(summary.error_count as i32)
1808            .bind(summary.warning_count as i32)
1809            .execute(&mut tx)
1810            .await?;
1811
1812            let connection_ids = sqlx::query_scalar::<_, i32>(
1813                "
1814                SELECT connection_id
1815                FROM project_collaborators
1816                WHERE project_id = $1 AND connection_id != $2
1817                ",
1818            )
1819            .bind(project_id)
1820            .bind(connection_id.0 as i32)
1821            .fetch_all(&mut tx)
1822            .await?;
1823
1824            tx.commit().await?;
1825
1826            Ok(connection_ids
1827                .into_iter()
1828                .map(|connection_id| ConnectionId(connection_id as u32))
1829                .collect())
1830        })
1831        .await
1832    }
1833
1834    pub async fn start_language_server(
1835        &self,
1836        update: &proto::StartLanguageServer,
1837        connection_id: ConnectionId,
1838    ) -> Result<Vec<ConnectionId>> {
1839        self.transact(|mut tx| async {
1840            let project_id = ProjectId::from_proto(update.project_id);
1841            let server = update
1842                .server
1843                .as_ref()
1844                .ok_or_else(|| anyhow!("invalid language server"))?;
1845
1846            // Ensure the update comes from the host.
1847            sqlx::query(
1848                "
1849                SELECT 1
1850                FROM projects
1851                WHERE id = $1 AND host_connection_id = $2
1852                ",
1853            )
1854            .bind(project_id)
1855            .bind(connection_id.0 as i32)
1856            .fetch_one(&mut tx)
1857            .await?;
1858
1859            // Add the newly-started language server.
1860            sqlx::query(
1861                "
1862                INSERT INTO language_servers (project_id, id, name)
1863                VALUES ($1, $2, $3)
1864                ON CONFLICT (project_id, id) DO UPDATE SET
1865                    name = excluded.name
1866                ",
1867            )
1868            .bind(project_id)
1869            .bind(server.id as i64)
1870            .bind(&server.name)
1871            .execute(&mut tx)
1872            .await?;
1873
1874            let connection_ids = sqlx::query_scalar::<_, i32>(
1875                "
1876                SELECT connection_id
1877                FROM project_collaborators
1878                WHERE project_id = $1 AND connection_id != $2
1879                ",
1880            )
1881            .bind(project_id)
1882            .bind(connection_id.0 as i32)
1883            .fetch_all(&mut tx)
1884            .await?;
1885
1886            tx.commit().await?;
1887
1888            Ok(connection_ids
1889                .into_iter()
1890                .map(|connection_id| ConnectionId(connection_id as u32))
1891                .collect())
1892        })
1893        .await
1894    }
1895
1896    pub async fn join_project(
1897        &self,
1898        project_id: ProjectId,
1899        connection_id: ConnectionId,
1900    ) -> Result<(Project, ReplicaId)> {
1901        self.transact(|mut tx| async move {
1902            let (room_id, user_id) = sqlx::query_as::<_, (RoomId, UserId)>(
1903                "
1904                SELECT room_id, user_id
1905                FROM room_participants
1906                WHERE answering_connection_id = $1
1907                ",
1908            )
1909            .bind(connection_id.0 as i32)
1910            .fetch_one(&mut tx)
1911            .await?;
1912
1913            // Ensure project id was shared on this room.
1914            sqlx::query(
1915                "
1916                SELECT 1
1917                FROM projects
1918                WHERE id = $1 AND room_id = $2
1919                ",
1920            )
1921            .bind(project_id)
1922            .bind(room_id)
1923            .fetch_one(&mut tx)
1924            .await?;
1925
1926            let mut collaborators = sqlx::query_as::<_, ProjectCollaborator>(
1927                "
1928                SELECT *
1929                FROM project_collaborators
1930                WHERE project_id = $1
1931                ",
1932            )
1933            .bind(project_id)
1934            .fetch_all(&mut tx)
1935            .await?;
1936            let replica_ids = collaborators
1937                .iter()
1938                .map(|c| c.replica_id)
1939                .collect::<HashSet<_>>();
1940            let mut replica_id = ReplicaId(1);
1941            while replica_ids.contains(&replica_id) {
1942                replica_id.0 += 1;
1943            }
1944            let new_collaborator = ProjectCollaborator {
1945                project_id,
1946                connection_id: connection_id.0 as i32,
1947                user_id,
1948                replica_id,
1949                is_host: false,
1950            };
1951
1952            sqlx::query(
1953                "
1954                INSERT INTO project_collaborators (
1955                    project_id,
1956                    connection_id,
1957                    user_id,
1958                    replica_id,
1959                    is_host
1960                )
1961                VALUES ($1, $2, $3, $4, $5)
1962                ",
1963            )
1964            .bind(new_collaborator.project_id)
1965            .bind(new_collaborator.connection_id)
1966            .bind(new_collaborator.user_id)
1967            .bind(new_collaborator.replica_id)
1968            .bind(new_collaborator.is_host)
1969            .execute(&mut tx)
1970            .await?;
1971            collaborators.push(new_collaborator);
1972
1973            let worktree_rows = sqlx::query_as::<_, WorktreeRow>(
1974                "
1975                SELECT *
1976                FROM worktrees
1977                WHERE project_id = $1
1978                ",
1979            )
1980            .bind(project_id)
1981            .fetch_all(&mut tx)
1982            .await?;
1983            let mut worktrees = worktree_rows
1984                .into_iter()
1985                .map(|worktree_row| {
1986                    (
1987                        worktree_row.id,
1988                        Worktree {
1989                            id: worktree_row.id,
1990                            abs_path: worktree_row.abs_path,
1991                            root_name: worktree_row.root_name,
1992                            visible: worktree_row.visible,
1993                            entries: Default::default(),
1994                            diagnostic_summaries: Default::default(),
1995                            scan_id: worktree_row.scan_id as u64,
1996                            is_complete: worktree_row.is_complete,
1997                        },
1998                    )
1999                })
2000                .collect::<BTreeMap<_, _>>();
2001
2002            // Populate worktree entries.
2003            {
2004                let mut entries = sqlx::query_as::<_, WorktreeEntry>(
2005                    "
2006                    SELECT *
2007                    FROM worktree_entries
2008                    WHERE project_id = $1
2009                    ",
2010                )
2011                .bind(project_id)
2012                .fetch(&mut tx);
2013                while let Some(entry) = entries.next().await {
2014                    let entry = entry?;
2015                    if let Some(worktree) = worktrees.get_mut(&entry.worktree_id) {
2016                        worktree.entries.push(proto::Entry {
2017                            id: entry.id as u64,
2018                            is_dir: entry.is_dir,
2019                            path: entry.path,
2020                            inode: entry.inode as u64,
2021                            mtime: Some(proto::Timestamp {
2022                                seconds: entry.mtime_seconds as u64,
2023                                nanos: entry.mtime_nanos as u32,
2024                            }),
2025                            is_symlink: entry.is_symlink,
2026                            is_ignored: entry.is_ignored,
2027                        });
2028                    }
2029                }
2030            }
2031
2032            // Populate worktree diagnostic summaries.
2033            {
2034                let mut summaries = sqlx::query_as::<_, WorktreeDiagnosticSummary>(
2035                    "
2036                    SELECT *
2037                    FROM worktree_diagnostic_summaries
2038                    WHERE project_id = $1
2039                    ",
2040                )
2041                .bind(project_id)
2042                .fetch(&mut tx);
2043                while let Some(summary) = summaries.next().await {
2044                    let summary = summary?;
2045                    if let Some(worktree) = worktrees.get_mut(&summary.worktree_id) {
2046                        worktree
2047                            .diagnostic_summaries
2048                            .push(proto::DiagnosticSummary {
2049                                path: summary.path,
2050                                language_server_id: summary.language_server_id as u64,
2051                                error_count: summary.error_count as u32,
2052                                warning_count: summary.warning_count as u32,
2053                            });
2054                    }
2055                }
2056            }
2057
2058            // Populate language servers.
2059            let language_servers = sqlx::query_as::<_, LanguageServer>(
2060                "
2061                SELECT *
2062                FROM language_servers
2063                WHERE project_id = $1
2064                ",
2065            )
2066            .bind(project_id)
2067            .fetch_all(&mut tx)
2068            .await?;
2069
2070            tx.commit().await?;
2071            Ok((
2072                Project {
2073                    collaborators,
2074                    worktrees,
2075                    language_servers: language_servers
2076                        .into_iter()
2077                        .map(|language_server| proto::LanguageServer {
2078                            id: language_server.id.to_proto(),
2079                            name: language_server.name,
2080                        })
2081                        .collect(),
2082                },
2083                replica_id as ReplicaId,
2084            ))
2085        })
2086        .await
2087    }
2088
2089    pub async fn project_collaborators(
2090        &self,
2091        project_id: ProjectId,
2092        connection_id: ConnectionId,
2093    ) -> Result<Vec<ProjectCollaborator>> {
2094        self.transact(|mut tx| async move {
2095            let collaborators = sqlx::query_as::<_, ProjectCollaborator>(
2096                "
2097                SELECT *
2098                FROM project_collaborators
2099                WHERE project_id = $1
2100                ",
2101            )
2102            .bind(project_id)
2103            .fetch_all(&mut tx)
2104            .await?;
2105
2106            if collaborators
2107                .iter()
2108                .any(|collaborator| collaborator.connection_id == connection_id.0 as i32)
2109            {
2110                Ok(collaborators)
2111            } else {
2112                Err(anyhow!("no such project"))?
2113            }
2114        })
2115        .await
2116    }
2117
2118    pub async fn project_connection_ids(
2119        &self,
2120        project_id: ProjectId,
2121        connection_id: ConnectionId,
2122    ) -> Result<HashSet<ConnectionId>> {
2123        self.transact(|mut tx| async move {
2124            let connection_ids = sqlx::query_scalar::<_, i32>(
2125                "
2126                SELECT connection_id
2127                FROM project_collaborators
2128                WHERE project_id = $1
2129                ",
2130            )
2131            .bind(project_id)
2132            .fetch_all(&mut tx)
2133            .await?;
2134
2135            if connection_ids.contains(&(connection_id.0 as i32)) {
2136                Ok(connection_ids
2137                    .into_iter()
2138                    .map(|connection_id| ConnectionId(connection_id as u32))
2139                    .collect())
2140            } else {
2141                Err(anyhow!("no such project"))?
2142            }
2143        })
2144        .await
2145    }
2146
2147    pub async fn unshare_project(&self, project_id: ProjectId) -> Result<()> {
2148        todo!()
2149        // test_support!(self, {
2150        //     sqlx::query(
2151        //         "
2152        //         UPDATE projects
2153        //         SET unregistered = TRUE
2154        //         WHERE id = $1
2155        //         ",
2156        //     )
2157        //     .bind(project_id)
2158        //     .execute(&self.pool)
2159        //     .await?;
2160        //     Ok(())
2161        // })
2162    }
2163
2164    // contacts
2165
2166    pub async fn get_contacts(&self, user_id: UserId) -> Result<Vec<Contact>> {
2167        self.transact(|mut tx| async move {
2168            let query = "
2169                SELECT user_id_a, user_id_b, a_to_b, accepted, should_notify, (room_participants.id IS NOT NULL) as busy
2170                FROM contacts
2171                LEFT JOIN room_participants ON room_participants.user_id = $1
2172                WHERE user_id_a = $1 OR user_id_b = $1;
2173            ";
2174
2175            let mut rows = sqlx::query_as::<_, (UserId, UserId, bool, bool, bool, bool)>(query)
2176                .bind(user_id)
2177                .fetch(&mut tx);
2178
2179            let mut contacts = Vec::new();
2180            while let Some(row) = rows.next().await {
2181                let (user_id_a, user_id_b, a_to_b, accepted, should_notify, busy) = row?;
2182                if user_id_a == user_id {
2183                    if accepted {
2184                        contacts.push(Contact::Accepted {
2185                            user_id: user_id_b,
2186                            should_notify: should_notify && a_to_b,
2187                            busy
2188                        });
2189                    } else if a_to_b {
2190                        contacts.push(Contact::Outgoing { user_id: user_id_b })
2191                    } else {
2192                        contacts.push(Contact::Incoming {
2193                            user_id: user_id_b,
2194                            should_notify,
2195                        });
2196                    }
2197                } else if accepted {
2198                    contacts.push(Contact::Accepted {
2199                        user_id: user_id_a,
2200                        should_notify: should_notify && !a_to_b,
2201                        busy
2202                    });
2203                } else if a_to_b {
2204                    contacts.push(Contact::Incoming {
2205                        user_id: user_id_a,
2206                        should_notify,
2207                    });
2208                } else {
2209                    contacts.push(Contact::Outgoing { user_id: user_id_a });
2210                }
2211            }
2212
2213            contacts.sort_unstable_by_key(|contact| contact.user_id());
2214
2215            Ok(contacts)
2216        })
2217        .await
2218    }
2219
2220    pub async fn is_user_busy(&self, user_id: UserId) -> Result<bool> {
2221        self.transact(|mut tx| async move {
2222            Ok(sqlx::query_scalar::<_, i32>(
2223                "
2224                SELECT 1
2225                FROM room_participants
2226                WHERE room_participants.user_id = $1
2227                ",
2228            )
2229            .bind(user_id)
2230            .fetch_optional(&mut tx)
2231            .await?
2232            .is_some())
2233        })
2234        .await
2235    }
2236
2237    pub async fn has_contact(&self, user_id_1: UserId, user_id_2: UserId) -> Result<bool> {
2238        self.transact(|mut tx| async move {
2239            let (id_a, id_b) = if user_id_1 < user_id_2 {
2240                (user_id_1, user_id_2)
2241            } else {
2242                (user_id_2, user_id_1)
2243            };
2244
2245            let query = "
2246                SELECT 1 FROM contacts
2247                WHERE user_id_a = $1 AND user_id_b = $2 AND accepted = TRUE
2248                LIMIT 1
2249            ";
2250            Ok(sqlx::query_scalar::<_, i32>(query)
2251                .bind(id_a.0)
2252                .bind(id_b.0)
2253                .fetch_optional(&mut tx)
2254                .await?
2255                .is_some())
2256        })
2257        .await
2258    }
2259
2260    pub async fn send_contact_request(&self, sender_id: UserId, receiver_id: UserId) -> Result<()> {
2261        self.transact(|mut tx| async move {
2262            let (id_a, id_b, a_to_b) = if sender_id < receiver_id {
2263                (sender_id, receiver_id, true)
2264            } else {
2265                (receiver_id, sender_id, false)
2266            };
2267            let query = "
2268                INSERT into contacts (user_id_a, user_id_b, a_to_b, accepted, should_notify)
2269                VALUES ($1, $2, $3, FALSE, TRUE)
2270                ON CONFLICT (user_id_a, user_id_b) DO UPDATE
2271                SET
2272                    accepted = TRUE,
2273                    should_notify = FALSE
2274                WHERE
2275                    NOT contacts.accepted AND
2276                    ((contacts.a_to_b = excluded.a_to_b AND contacts.user_id_a = excluded.user_id_b) OR
2277                    (contacts.a_to_b != excluded.a_to_b AND contacts.user_id_a = excluded.user_id_a));
2278            ";
2279            let result = sqlx::query(query)
2280                .bind(id_a.0)
2281                .bind(id_b.0)
2282                .bind(a_to_b)
2283                .execute(&mut tx)
2284                .await?;
2285
2286            if result.rows_affected() == 1 {
2287                tx.commit().await?;
2288                Ok(())
2289            } else {
2290                Err(anyhow!("contact already requested"))?
2291            }
2292        }).await
2293    }
2294
2295    pub async fn remove_contact(&self, requester_id: UserId, responder_id: UserId) -> Result<()> {
2296        self.transact(|mut tx| async move {
2297            let (id_a, id_b) = if responder_id < requester_id {
2298                (responder_id, requester_id)
2299            } else {
2300                (requester_id, responder_id)
2301            };
2302            let query = "
2303                DELETE FROM contacts
2304                WHERE user_id_a = $1 AND user_id_b = $2;
2305            ";
2306            let result = sqlx::query(query)
2307                .bind(id_a.0)
2308                .bind(id_b.0)
2309                .execute(&mut tx)
2310                .await?;
2311
2312            if result.rows_affected() == 1 {
2313                tx.commit().await?;
2314                Ok(())
2315            } else {
2316                Err(anyhow!("no such contact"))?
2317            }
2318        })
2319        .await
2320    }
2321
2322    pub async fn dismiss_contact_notification(
2323        &self,
2324        user_id: UserId,
2325        contact_user_id: UserId,
2326    ) -> Result<()> {
2327        self.transact(|mut tx| async move {
2328            let (id_a, id_b, a_to_b) = if user_id < contact_user_id {
2329                (user_id, contact_user_id, true)
2330            } else {
2331                (contact_user_id, user_id, false)
2332            };
2333
2334            let query = "
2335                UPDATE contacts
2336                SET should_notify = FALSE
2337                WHERE
2338                    user_id_a = $1 AND user_id_b = $2 AND
2339                    (
2340                        (a_to_b = $3 AND accepted) OR
2341                        (a_to_b != $3 AND NOT accepted)
2342                    );
2343            ";
2344
2345            let result = sqlx::query(query)
2346                .bind(id_a.0)
2347                .bind(id_b.0)
2348                .bind(a_to_b)
2349                .execute(&mut tx)
2350                .await?;
2351
2352            if result.rows_affected() == 0 {
2353                Err(anyhow!("no such contact request"))?
2354            } else {
2355                tx.commit().await?;
2356                Ok(())
2357            }
2358        })
2359        .await
2360    }
2361
2362    pub async fn respond_to_contact_request(
2363        &self,
2364        responder_id: UserId,
2365        requester_id: UserId,
2366        accept: bool,
2367    ) -> Result<()> {
2368        self.transact(|mut tx| async move {
2369            let (id_a, id_b, a_to_b) = if responder_id < requester_id {
2370                (responder_id, requester_id, false)
2371            } else {
2372                (requester_id, responder_id, true)
2373            };
2374            let result = if accept {
2375                let query = "
2376                    UPDATE contacts
2377                    SET accepted = TRUE, should_notify = TRUE
2378                    WHERE user_id_a = $1 AND user_id_b = $2 AND a_to_b = $3;
2379                ";
2380                sqlx::query(query)
2381                    .bind(id_a.0)
2382                    .bind(id_b.0)
2383                    .bind(a_to_b)
2384                    .execute(&mut tx)
2385                    .await?
2386            } else {
2387                let query = "
2388                    DELETE FROM contacts
2389                    WHERE user_id_a = $1 AND user_id_b = $2 AND a_to_b = $3 AND NOT accepted;
2390                ";
2391                sqlx::query(query)
2392                    .bind(id_a.0)
2393                    .bind(id_b.0)
2394                    .bind(a_to_b)
2395                    .execute(&mut tx)
2396                    .await?
2397            };
2398            if result.rows_affected() == 1 {
2399                tx.commit().await?;
2400                Ok(())
2401            } else {
2402                Err(anyhow!("no such contact request"))?
2403            }
2404        })
2405        .await
2406    }
2407
2408    // access tokens
2409
2410    pub async fn create_access_token_hash(
2411        &self,
2412        user_id: UserId,
2413        access_token_hash: &str,
2414        max_access_token_count: usize,
2415    ) -> Result<()> {
2416        self.transact(|tx| async {
2417            let mut tx = tx;
2418            let insert_query = "
2419                INSERT INTO access_tokens (user_id, hash)
2420                VALUES ($1, $2);
2421            ";
2422            let cleanup_query = "
2423                DELETE FROM access_tokens
2424                WHERE id IN (
2425                    SELECT id from access_tokens
2426                    WHERE user_id = $1
2427                    ORDER BY id DESC
2428                    LIMIT 10000
2429                    OFFSET $3
2430                )
2431            ";
2432
2433            sqlx::query(insert_query)
2434                .bind(user_id.0)
2435                .bind(access_token_hash)
2436                .execute(&mut tx)
2437                .await?;
2438            sqlx::query(cleanup_query)
2439                .bind(user_id.0)
2440                .bind(access_token_hash)
2441                .bind(max_access_token_count as i32)
2442                .execute(&mut tx)
2443                .await?;
2444            Ok(tx.commit().await?)
2445        })
2446        .await
2447    }
2448
2449    pub async fn get_access_token_hashes(&self, user_id: UserId) -> Result<Vec<String>> {
2450        self.transact(|mut tx| async move {
2451            let query = "
2452                SELECT hash
2453                FROM access_tokens
2454                WHERE user_id = $1
2455                ORDER BY id DESC
2456            ";
2457            Ok(sqlx::query_scalar(query)
2458                .bind(user_id.0)
2459                .fetch_all(&mut tx)
2460                .await?)
2461        })
2462        .await
2463    }
2464
2465    async fn transact<F, Fut, T>(&self, f: F) -> Result<T>
2466    where
2467        F: Send + Fn(sqlx::Transaction<'static, D>) -> Fut,
2468        Fut: Send + Future<Output = Result<T>>,
2469    {
2470        let body = async {
2471            loop {
2472                let tx = self.begin_transaction().await?;
2473                match f(tx).await {
2474                    Ok(result) => return Ok(result),
2475                    Err(error) => match error {
2476                        Error::Database(error)
2477                            if error
2478                                .as_database_error()
2479                                .and_then(|error| error.code())
2480                                .as_deref()
2481                                == Some("hey") =>
2482                        {
2483                            // Retry (don't break the loop)
2484                        }
2485                        error @ _ => return Err(error),
2486                    },
2487                }
2488            }
2489        };
2490
2491        #[cfg(test)]
2492        {
2493            if let Some(background) = self.background.as_ref() {
2494                background.simulate_random_delay().await;
2495            }
2496
2497            let result = self.runtime.as_ref().unwrap().block_on(body);
2498
2499            if let Some(background) = self.background.as_ref() {
2500                background.simulate_random_delay().await;
2501            }
2502
2503            result
2504        }
2505
2506        #[cfg(not(test))]
2507        {
2508            body.await
2509        }
2510    }
2511}
2512
2513macro_rules! id_type {
2514    ($name:ident) => {
2515        #[derive(
2516            Clone,
2517            Copy,
2518            Debug,
2519            Default,
2520            PartialEq,
2521            Eq,
2522            PartialOrd,
2523            Ord,
2524            Hash,
2525            sqlx::Type,
2526            Serialize,
2527            Deserialize,
2528        )]
2529        #[sqlx(transparent)]
2530        #[serde(transparent)]
2531        pub struct $name(pub i32);
2532
2533        impl $name {
2534            #[allow(unused)]
2535            pub const MAX: Self = Self(i32::MAX);
2536
2537            #[allow(unused)]
2538            pub fn from_proto(value: u64) -> Self {
2539                Self(value as i32)
2540            }
2541
2542            #[allow(unused)]
2543            pub fn to_proto(self) -> u64 {
2544                self.0 as u64
2545            }
2546        }
2547
2548        impl std::fmt::Display for $name {
2549            fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
2550                self.0.fmt(f)
2551            }
2552        }
2553    };
2554}
2555
2556id_type!(UserId);
2557#[derive(Clone, Debug, Default, FromRow, Serialize, PartialEq)]
2558pub struct User {
2559    pub id: UserId,
2560    pub github_login: String,
2561    pub github_user_id: Option<i32>,
2562    pub email_address: Option<String>,
2563    pub admin: bool,
2564    pub invite_code: Option<String>,
2565    pub invite_count: i32,
2566    pub connected_once: bool,
2567}
2568
2569id_type!(RoomId);
2570#[derive(Clone, Debug, Default, FromRow, Serialize, PartialEq)]
2571pub struct Room {
2572    pub id: RoomId,
2573    pub version: i32,
2574    pub live_kit_room: String,
2575}
2576
2577id_type!(ProjectId);
2578pub struct Project {
2579    pub collaborators: Vec<ProjectCollaborator>,
2580    pub worktrees: BTreeMap<WorktreeId, Worktree>,
2581    pub language_servers: Vec<proto::LanguageServer>,
2582}
2583
2584id_type!(ReplicaId);
2585#[derive(Clone, Debug, Default, FromRow, PartialEq)]
2586pub struct ProjectCollaborator {
2587    pub project_id: ProjectId,
2588    pub connection_id: i32,
2589    pub user_id: UserId,
2590    pub replica_id: ReplicaId,
2591    pub is_host: bool,
2592}
2593
2594id_type!(WorktreeId);
2595#[derive(Clone, Debug, Default, FromRow, PartialEq)]
2596struct WorktreeRow {
2597    pub id: WorktreeId,
2598    pub abs_path: String,
2599    pub root_name: String,
2600    pub visible: bool,
2601    pub scan_id: i64,
2602    pub is_complete: bool,
2603}
2604
2605pub struct Worktree {
2606    pub id: WorktreeId,
2607    pub abs_path: String,
2608    pub root_name: String,
2609    pub visible: bool,
2610    pub entries: Vec<proto::Entry>,
2611    pub diagnostic_summaries: Vec<proto::DiagnosticSummary>,
2612    pub scan_id: u64,
2613    pub is_complete: bool,
2614}
2615
2616#[derive(Clone, Debug, Default, FromRow, PartialEq)]
2617struct WorktreeEntry {
2618    id: i64,
2619    worktree_id: WorktreeId,
2620    is_dir: bool,
2621    path: String,
2622    inode: i64,
2623    mtime_seconds: i64,
2624    mtime_nanos: i32,
2625    is_symlink: bool,
2626    is_ignored: bool,
2627}
2628
2629#[derive(Clone, Debug, Default, FromRow, PartialEq)]
2630struct WorktreeDiagnosticSummary {
2631    worktree_id: WorktreeId,
2632    path: String,
2633    language_server_id: i64,
2634    error_count: i32,
2635    warning_count: i32,
2636}
2637
2638id_type!(LanguageServerId);
2639#[derive(Clone, Debug, Default, FromRow, PartialEq)]
2640struct LanguageServer {
2641    id: LanguageServerId,
2642    name: String,
2643}
2644
2645pub struct LeftProject {
2646    pub id: ProjectId,
2647    pub host_user_id: UserId,
2648    pub connection_ids: Vec<ConnectionId>,
2649}
2650
2651pub struct LeftRoom {
2652    pub room: proto::Room,
2653    pub left_projects: HashMap<ProjectId, LeftProject>,
2654    pub canceled_calls_to_user_ids: Vec<UserId>,
2655}
2656
2657#[derive(Clone, Debug, PartialEq, Eq)]
2658pub enum Contact {
2659    Accepted {
2660        user_id: UserId,
2661        should_notify: bool,
2662        busy: bool,
2663    },
2664    Outgoing {
2665        user_id: UserId,
2666    },
2667    Incoming {
2668        user_id: UserId,
2669        should_notify: bool,
2670    },
2671}
2672
2673impl Contact {
2674    pub fn user_id(&self) -> UserId {
2675        match self {
2676            Contact::Accepted { user_id, .. } => *user_id,
2677            Contact::Outgoing { user_id } => *user_id,
2678            Contact::Incoming { user_id, .. } => *user_id,
2679        }
2680    }
2681}
2682
2683#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
2684pub struct IncomingContactRequest {
2685    pub requester_id: UserId,
2686    pub should_notify: bool,
2687}
2688
2689#[derive(Clone, Deserialize)]
2690pub struct Signup {
2691    pub email_address: String,
2692    pub platform_mac: bool,
2693    pub platform_windows: bool,
2694    pub platform_linux: bool,
2695    pub editor_features: Vec<String>,
2696    pub programming_languages: Vec<String>,
2697    pub device_id: Option<String>,
2698}
2699
2700#[derive(Clone, Debug, PartialEq, Deserialize, Serialize, FromRow)]
2701pub struct WaitlistSummary {
2702    #[sqlx(default)]
2703    pub count: i64,
2704    #[sqlx(default)]
2705    pub linux_count: i64,
2706    #[sqlx(default)]
2707    pub mac_count: i64,
2708    #[sqlx(default)]
2709    pub windows_count: i64,
2710    #[sqlx(default)]
2711    pub unknown_count: i64,
2712}
2713
2714#[derive(FromRow, PartialEq, Debug, Serialize, Deserialize)]
2715pub struct Invite {
2716    pub email_address: String,
2717    pub email_confirmation_code: String,
2718}
2719
2720#[derive(Debug, Serialize, Deserialize)]
2721pub struct NewUserParams {
2722    pub github_login: String,
2723    pub github_user_id: i32,
2724    pub invite_count: i32,
2725}
2726
2727#[derive(Debug)]
2728pub struct NewUserResult {
2729    pub user_id: UserId,
2730    pub metrics_id: String,
2731    pub inviting_user_id: Option<UserId>,
2732    pub signup_device_id: Option<String>,
2733}
2734
2735fn random_invite_code() -> String {
2736    nanoid::nanoid!(16)
2737}
2738
2739fn random_email_confirmation_code() -> String {
2740    nanoid::nanoid!(64)
2741}
2742
2743#[cfg(test)]
2744pub use test::*;
2745
2746#[cfg(test)]
2747mod test {
2748    use super::*;
2749    use gpui::executor::Background;
2750    use lazy_static::lazy_static;
2751    use parking_lot::Mutex;
2752    use rand::prelude::*;
2753    use sqlx::migrate::MigrateDatabase;
2754    use std::sync::Arc;
2755
2756    pub struct SqliteTestDb {
2757        pub db: Option<Arc<Db<sqlx::Sqlite>>>,
2758        pub conn: sqlx::sqlite::SqliteConnection,
2759    }
2760
2761    pub struct PostgresTestDb {
2762        pub db: Option<Arc<Db<sqlx::Postgres>>>,
2763        pub url: String,
2764    }
2765
2766    impl SqliteTestDb {
2767        pub fn new(background: Arc<Background>) -> Self {
2768            let mut rng = StdRng::from_entropy();
2769            let url = format!("file:zed-test-{}?mode=memory", rng.gen::<u128>());
2770            let runtime = tokio::runtime::Builder::new_current_thread()
2771                .enable_io()
2772                .enable_time()
2773                .build()
2774                .unwrap();
2775
2776            let (mut db, conn) = runtime.block_on(async {
2777                let db = Db::<sqlx::Sqlite>::new(&url, 5).await.unwrap();
2778                let migrations_path = concat!(env!("CARGO_MANIFEST_DIR"), "/migrations.sqlite");
2779                db.migrate(migrations_path.as_ref(), false).await.unwrap();
2780                let conn = db.pool.acquire().await.unwrap().detach();
2781                (db, conn)
2782            });
2783
2784            db.background = Some(background);
2785            db.runtime = Some(runtime);
2786
2787            Self {
2788                db: Some(Arc::new(db)),
2789                conn,
2790            }
2791        }
2792
2793        pub fn db(&self) -> &Arc<Db<sqlx::Sqlite>> {
2794            self.db.as_ref().unwrap()
2795        }
2796    }
2797
2798    impl PostgresTestDb {
2799        pub fn new(background: Arc<Background>) -> Self {
2800            lazy_static! {
2801                static ref LOCK: Mutex<()> = Mutex::new(());
2802            }
2803
2804            let _guard = LOCK.lock();
2805            let mut rng = StdRng::from_entropy();
2806            let url = format!(
2807                "postgres://postgres@localhost/zed-test-{}",
2808                rng.gen::<u128>()
2809            );
2810            let runtime = tokio::runtime::Builder::new_current_thread()
2811                .enable_io()
2812                .enable_time()
2813                .build()
2814                .unwrap();
2815
2816            let mut db = runtime.block_on(async {
2817                sqlx::Postgres::create_database(&url)
2818                    .await
2819                    .expect("failed to create test db");
2820                let db = Db::<sqlx::Postgres>::new(&url, 5).await.unwrap();
2821                let migrations_path = concat!(env!("CARGO_MANIFEST_DIR"), "/migrations");
2822                db.migrate(Path::new(migrations_path), false).await.unwrap();
2823                db
2824            });
2825
2826            db.background = Some(background);
2827            db.runtime = Some(runtime);
2828
2829            Self {
2830                db: Some(Arc::new(db)),
2831                url,
2832            }
2833        }
2834
2835        pub fn db(&self) -> &Arc<Db<sqlx::Postgres>> {
2836            self.db.as_ref().unwrap()
2837        }
2838    }
2839
2840    impl Drop for PostgresTestDb {
2841        fn drop(&mut self) {
2842            let db = self.db.take().unwrap();
2843            db.teardown(&self.url);
2844        }
2845    }
2846}