Use new DittoDB module, rename old interface to DittoTables

src/db.ts

@@ -1,93 +1,10 @@
 import fs from 'node:fs/promises';
 import path from 'node:path';
 
-import { FileMigrationProvider, Kysely, Migrator, PolySqliteDialect } from '@/deps.ts';
+import { DittoDB } from '@/db/DittoDB.ts';
-import { Conf } from '@/config.ts';
+import { FileMigrationProvider, Migrator } from '@/deps.ts';
-import { setPragma } from '@/pragma.ts';
-import SqliteWorker from '@/workers/sqlite.ts';
 
-interface DittoDB {
+const db = await DittoDB.getInstance();
-  events: EventRow;
-  events_fts: EventFTSRow;
-  tags: TagRow;
-  relays: RelayRow;
-  unattached_media: UnattachedMediaRow;
-  author_stats: AuthorStatsRow;
-  event_stats: EventStatsRow;
-  pubkey_domains: PubkeyDomainRow;
-}
-
-interface AuthorStatsRow {
-  pubkey: string;
-  followers_count: number;
-  following_count: number;
-  notes_count: number;
-}
-
-interface EventStatsRow {
-  event_id: string;
-  replies_count: number;
-  reposts_count: number;
-  reactions_count: number;
-}
-
-interface EventRow {
-  id: string;
-  kind: number;
-  pubkey: string;
-  content: string;
-  created_at: number;
-  tags: string;
-  sig: string;
-  deleted_at: number | null;
-}
-
-interface EventFTSRow {
-  id: string;
-  content: string;
-}
-
-interface TagRow {
-  tag: string;
-  value: string;
-  event_id: string;
-}
-
-interface RelayRow {
-  url: string;
-  domain: string;
-  active: boolean;
-}
-
-interface UnattachedMediaRow {
-  id: string;
-  pubkey: string;
-  url: string;
-  data: string;
-  uploaded_at: Date;
-}
-
-interface PubkeyDomainRow {
-  pubkey: string;
-  domain: string;
-  last_updated_at: number;
-}
-
-const sqliteWorker = new SqliteWorker();
-await sqliteWorker.open(Conf.dbPath);
-
-const db = new Kysely<DittoDB>({
-  dialect: new PolySqliteDialect({
-    database: sqliteWorker,
-  }),
-});
-
-// Set PRAGMA values.
-await Promise.all([
-  setPragma(db, 'synchronous', 'normal'),
-  setPragma(db, 'temp_store', 'memory'),
-  setPragma(db, 'mmap_size', Conf.sqlite.mmapSize),
-]);
 
 const migrator = new Migrator({
   db,
@@ -120,4 +37,4 @@ async function migrate() {
 
 await migrate();
 
-export { type AuthorStatsRow, db, type DittoDB, type EventRow, type EventStatsRow, type TagRow };
+export { db };

src/db/DittoDB.ts

@@ -14,4 +14,4 @@ export class DittoDB {
         throw new Error('Unsupported database URL.');
     }
   }
-}
+}

src/stats.ts

@@ -1,10 +1,11 @@
-import { type AuthorStatsRow, db, type DittoDB, type EventStatsRow } from '@/db.ts';
+import { db } from '@/db.ts';
+import { DittoTables } from '@/db/DittoTables.ts';
 import { Debug, type InsertQueryBuilder, type NostrEvent } from '@/deps.ts';
 import { eventsDB } from '@/storages.ts';
 import { findReplyTag } from '@/tags.ts';
 
-type AuthorStat = keyof Omit<AuthorStatsRow, 'pubkey'>;
+type AuthorStat = keyof Omit<DittoTables['author_stats'], 'pubkey'>;
-type EventStat = keyof Omit<EventStatsRow, 'event_id'>;
+type EventStat = keyof Omit<DittoTables['event_stats'], 'event_id'>;
 
 type AuthorStatDiff = ['author_stats', pubkey: string, stat: AuthorStat, diff: number];
 type EventStatDiff = ['event_stats', eventId: string, stat: EventStat, diff: number];
@@ -15,7 +16,7 @@ const debug = Debug('ditto:stats');
 /** Store stats for the event in LMDB. */
 async function updateStats(event: NostrEvent) {
   let prev: NostrEvent | undefined;
-  const queries: InsertQueryBuilder<DittoDB, any, unknown>[] = [];
+  const queries: InsertQueryBuilder<DittoTables, any, unknown>[] = [];
 
   // Kind 3 is a special case - replace the count with the new list.
   if (event.kind === 3) {
@@ -98,8 +99,8 @@ async function getStatsDiff(event: NostrEvent, prev: NostrEvent | undefined): Pr
 
 /** Create an author stats query from the list of diffs. */
 function authorStatsQuery(diffs: AuthorStatDiff[]) {
-  const values: AuthorStatsRow[] = diffs.map(([_, pubkey, stat, diff]) => {
+  const values: DittoTables['author_stats'][] = diffs.map(([_, pubkey, stat, diff]) => {
-    const row: AuthorStatsRow = {
+    const row: DittoTables['author_stats'] = {
       pubkey,
       followers_count: 0,
       following_count: 0,
@@ -124,8 +125,8 @@ function authorStatsQuery(diffs: AuthorStatDiff[]) {
 
 /** Create an event stats query from the list of diffs. */
 function eventStatsQuery(diffs: EventStatDiff[]) {
-  const values: EventStatsRow[] = diffs.map(([_, event_id, stat, diff]) => {
+  const values: DittoTables['event_stats'][] = diffs.map(([_, event_id, stat, diff]) => {
-    const row: EventStatsRow = {
+    const row: DittoTables['event_stats'] = {
       event_id,
       replies_count: 0,
       reposts_count: 0,

src/storages/events-db.ts

@@ -1,6 +1,6 @@
 import { NIP50, NostrFilter } from '@soapbox/nspec';
 import { Conf } from '@/config.ts';
-import { type DittoDB } from '@/db.ts';
+import { DittoTables } from '@/db/DittoTables.ts';
 import { Debug, Kysely, type NostrEvent, type NStore, type NStoreOpts, type SelectQueryBuilder } from '@/deps.ts';
 import { normalizeFilters } from '@/filter.ts';
 import { DittoEvent } from '@/interfaces/DittoEvent.ts';
@@ -33,7 +33,7 @@ const tagConditions: Record<string, TagCondition> = {
   'role': ({ event, count }) => event.kind === 30361 && count === 0,
 };
 
-type EventQuery = SelectQueryBuilder<DittoDB, 'events', {
+type EventQuery = SelectQueryBuilder<DittoTables, 'events', {
   id: string;
   tags: string;
   kind: number;
@@ -58,10 +58,10 @@ type EventQuery = SelectQueryBuilder<DittoDB, 'events', {
 
 /** SQLite database storage adapter for Nostr events. */
 class EventsDB implements NStore {
-  #db: Kysely<DittoDB>;
+  #db: Kysely<DittoTables>;
   #debug = Debug('ditto:db:events');
 
-  constructor(db: Kysely<DittoDB>) {
+  constructor(db: Kysely<DittoTables>) {
     this.#db = db;
   }
 
@@ -143,7 +143,7 @@ class EventsDB implements NStore {
   }
 
   /** Build the query for a filter. */
-  getFilterQuery(db: Kysely<DittoDB>, filter: NostrFilter): EventQuery {
+  getFilterQuery(db: Kysely<DittoTables>, filter: NostrFilter): EventQuery {
     let query = db
       .selectFrom('events')
       .select([
@@ -315,7 +315,7 @@ class EventsDB implements NStore {
   }
 
   /** Delete events from each table. Should be run in a transaction! */
-  async deleteEventsTrx(db: Kysely<DittoDB>, filters: NostrFilter[]) {
+  async deleteEventsTrx(db: Kysely<DittoTables>, filters: NostrFilter[]) {
     if (!filters.length) return Promise.resolve();
     this.#debug('DELETE', JSON.stringify(filters));