Use explicit return type for getFilterQuery

src/db.ts

@@ -3,7 +3,7 @@ import path from 'node:path';
 
 import { DenoSqliteDialect, FileMigrationProvider, Kysely, Migrator, Sqlite } from '@/deps.ts';
 
-interface Tables {
+interface DittoDB {
   events: EventRow;
   tags: TagRow;
   users: UserRow;
@@ -33,7 +33,7 @@ interface UserRow {
   inserted_at: Date;
 }
 
-const db = new Kysely<Tables>({
+const db = new Kysely<DittoDB>({
   dialect: new DenoSqliteDialect({
     database: new Sqlite('data/db.sqlite3'),
   }),
@@ -52,4 +52,4 @@ console.log('Running migrations...');
 const results = await migrator.migrateToLatest();
 console.log('Migrations finished:', results);
 
-export { db, type EventRow, type TagRow, type UserRow };
+export { db, type DittoDB, type EventRow, type TagRow, type UserRow };

src/db/events.ts

@@ -1,7 +1,7 @@
-import { type Filter, type Insertable } from '@/deps.ts';
+import { type Filter, type Insertable, type SelectQueryBuilder } from '@/deps.ts';
 import { type SignedEvent } from '@/event.ts';
 
-import { db, type TagRow } from '@/db.ts';
+import { db, type DittoDB, type EventRow, type TagRow } from '@/db.ts';
 
 function insertEvent(event: SignedEvent): Promise<void> {
   return db.transaction().execute(async (trx) => {
@@ -34,7 +34,7 @@ function insertEvent(event: SignedEvent): Promise<void> {
   });
 }
 
-function getFilterQuery<K extends number = number>(filter: Filter<K>) {
+function getFilterQuery(filter: Filter): SelectQueryBuilder<DittoDB, 'events', EventRow> {
   let query = db.selectFrom('events').selectAll().orderBy('created_at', 'desc');
 
   for (const key of Object.keys(filter)) {

src/deps.ts

@@ -56,6 +56,7 @@ export {
   Kysely,
   Migrator,
   type NullableInsertKeys,
+  type SelectQueryBuilder,
   sql,
 } from 'npm:kysely@^0.25.0';
 export { DenoSqliteDialect } from 'https://gitlab.com/soapbox-pub/kysely-deno-sqlite/-/raw/76748303a45fac64a889cd2b9265c6c9b8ef2e8b/mod.ts';