Upgrade NSpec, update `count` interface

src/controllers/nostr/relay.ts

@@ -96,7 +96,7 @@ function connectStream(socket: WebSocket) {
 
   /** Handle COUNT. Return the number of events matching the filters. */
   async function handleCount([_, subId, ...rest]: ClientCOUNT): Promise<void> {
-    const count = await eventsDB.count(prepareFilters(rest));
+    const { count } = await eventsDB.count(prepareFilters(rest));
     send(['COUNT', subId, { count, approximate: false }]);
   }
 

src/deps.ts

@@ -85,7 +85,6 @@ export { default as Debug } from 'https://gitlab.com/soapbox-pub/stickynotes/-/r
 export {
   LNURL,
   type LNURLDetails,
-  type MapCache,
   NCache,
   NIP05,
   type NostrEvent,
@@ -93,6 +92,6 @@ export {
   NSet,
   type NStore,
   type NStoreOpts,
-} from 'https://gitlab.com/soapbox-pub/NSpec/-/raw/8ce84d9acd9925f51b51c00374eae81a5031559b/mod.ts';
+} from 'https://gitlab.com/soapbox-pub/NSpec/-/raw/v0.1.0/mod.ts';
 
 export type * as TypeFest from 'npm:type-fest@^4.3.0';

src/pipeline.ts

@@ -46,7 +46,7 @@ async function handleEvent(event: DittoEvent, signal: AbortSignal): Promise<void
 
 /** Encounter the event, and return whether it has already been encountered. */
 async function encounterEvent(event: NostrEvent, signal: AbortSignal): Promise<boolean> {
-  const preexisting = (await cache.count([{ ids: [event.id] }])) > 0;
+  const preexisting = (await cache.count([{ ids: [event.id] }])).count > 0;
   cache.event(event);
   reqmeister.event(event, { signal });
   return preexisting;
@@ -72,10 +72,10 @@ async function storeEvent(event: DittoEvent, opts: StoreEventOpts): Promise<void
   const { force = false, signal } = opts;
 
   if (force || event.user || isAdminEvent(event) || await isLocallyFollowed(event.pubkey)) {
-    const isDeleted = await eventsDB.count(
+    const isDeleted = (await eventsDB.count(
       [{ kinds: [5], authors: [Conf.pubkey, event.pubkey], '#e': [event.id], limit: 1 }],
       opts,
-    ) > 0;
+    )).count > 0;
 
     if (isDeleted) {
       return Promise.reject(new RelayError('blocked', 'event was deleted'));
@@ -145,16 +145,20 @@ function trackRelays(event: NostrEvent) {
 }
 
 /** Queue related events to fetch. */
-function fetchRelatedEvents(event: DittoEvent, signal: AbortSignal) {
+async function fetchRelatedEvents(event: DittoEvent, signal: AbortSignal) {
   if (!event.user) {
     reqmeister.req({ kinds: [0], authors: [event.pubkey] }, { signal }).catch(() => {});
   }
+
   for (const [name, id, relay] of event.tags) {
-    if (name === 'e' && !cache.count([{ ids: [id] }])) {
+    if (name === 'e') {
+      const { count } = await cache.count([{ ids: [id] }]);
+      if (!count) {
         reqmeister.req({ ids: [id] }, { relays: [relay] }).catch(() => {});
       }
     }
   }
+}
 
 /** Delete unattached media entries that are attached to the event. */
 function processMedia({ tags, pubkey, user }: DittoEvent) {

src/storages/events-db.test.ts

@@ -10,9 +10,9 @@ import { EventsDB } from './events-db.ts';
 const eventsDB = new EventsDB(db);
 
 Deno.test('count filters', async () => {
-  assertEquals(await eventsDB.count([{ kinds: [1] }]), 0);
+  assertEquals((await eventsDB.count([{ kinds: [1] }])).count, 0);
   await eventsDB.event(event1);
-  assertEquals(await eventsDB.count([{ kinds: [1] }]), 1);
+  assertEquals((await eventsDB.count([{ kinds: [1] }])).count, 1);
 });
 
 Deno.test('insert and filter events', async () => {
@@ -55,11 +55,11 @@ Deno.test('query events with local filter', async () => {
 });
 
 Deno.test('inserting replaceable events', async () => {
-  assertEquals(await eventsDB.count([{ kinds: [0], authors: [event0.pubkey] }]), 0);
+  assertEquals((await eventsDB.count([{ kinds: [0], authors: [event0.pubkey] }])).count, 0);
 
   await eventsDB.event(event0);
   await assertRejects(() => eventsDB.event(event0));
-  assertEquals(await eventsDB.count([{ kinds: [0], authors: [event0.pubkey] }]), 1);
+  assertEquals((await eventsDB.count([{ kinds: [0], authors: [event0.pubkey] }])).count, 1);
 
   const changeEvent = { ...event0, id: '123', created_at: event0.created_at + 1 };
   await eventsDB.event(changeEvent);

src/storages/events-db.ts

@@ -345,9 +345,9 @@ class EventsDB implements NStore {
   }
 
   /** Get number of events that would be returned by filters. */
-  async count(filters: DittoFilter[], opts: NStoreOpts = {}): Promise<number> {
+  async count(filters: DittoFilter[], opts: NStoreOpts = {}): Promise<{ count: number; approximate: boolean }> {
     if (opts.signal?.aborted) return Promise.reject(abortError());
-    if (!filters.length) return Promise.resolve(0);
+    if (!filters.length) return Promise.resolve({ count: 0, approximate: false });
 
     this.#debug('COUNT', JSON.stringify(filters));
     const query = this.getEventsQuery(filters);
@@ -357,7 +357,10 @@ class EventsDB implements NStore {
       .select((eb) => eb.fn.count('id').as('count'))
       .execute();
 
-    return Number(count);
+    return {
+      count: Number(count),
+      approximate: false,
+    };
   }
 }
 

src/storages/optimizer.ts

@@ -94,14 +94,6 @@ class Optimizer implements NStore {
 
     return getResults();
   }
-
-  count(_filters: DittoFilter[]): Promise<number> {
-    return Promise.reject(new Error('COUNT not implemented.'));
-  }
-
-  remove(_filters: DittoFilter[]): Promise<void> {
-    return Promise.reject(new Error('DELETE not implemented.'));
-  }
 }
 
 export { Optimizer };

src/storages/pool-store.ts

@@ -92,14 +92,6 @@ class PoolStore implements NStore {
       opts.signal?.addEventListener('abort', onAbort);
     });
   }
-
-  count() {
-    return Promise.reject(new Error('COUNT not implemented'));
-  }
-
-  remove() {
-    return Promise.reject(new Error('Cannot delete events from relays. Create a kind 5 event instead.'));
-  }
 }
 
 export { PoolStore };

src/storages/reqmeister.ts

@@ -133,14 +133,6 @@ class Reqmeister extends EventEmitter<{ [filterId: string]: (event: NostrEvent)
 
     return Promise.all(promises);
   }
-
-  count(_filters: NostrFilter[]): Promise<number> {
-    return Promise.reject(new Error('COUNT not implemented.'));
-  }
-
-  remove(_filters: NostrFilter[]): Promise<void> {
-    return Promise.reject(new Error('DELETE not implemented.'));
-  }
 }
 
 export { Reqmeister };

src/storages/search-store.ts

@@ -1,6 +1,6 @@
 import { NiceRelay } from 'https://gitlab.com/soapbox-pub/nostr-machina/-/raw/5f4fb59c90c092e5aa59c01e6556a4bec264c167/mod.ts';
 
-import { Debug, type NostrEvent, type NostrFilter, NSet, type NStore, type NStoreOpts } from '@/deps.ts';
+import { Debug, type NostrEvent, NSet, type NStore, type NStoreOpts } from '@/deps.ts';
 import { normalizeFilters } from '@/filter.ts';
 import { type DittoEvent } from '@/interfaces/DittoEvent.ts';
 import { type DittoFilter } from '@/interfaces/DittoFilter.ts';
@@ -68,14 +68,6 @@ class SearchStore implements NStore {
       return this.#fallback.query(filters, opts);
     }
   }
-
-  count(_filters: NostrFilter[]): Promise<number> {
-    return Promise.reject(new Error('COUNT not implemented.'));
-  }
-
-  remove(_filters: NostrFilter[]): Promise<void> {
-    return Promise.reject(new Error('DELETE not implemented.'));
-  }
 }
 
 export { SearchStore };

src/utils/SimpleLRU.ts

@@ -1,6 +1,6 @@
 // deno-lint-ignore-file ban-types
 
-import { LRUCache, type MapCache } from '@/deps.ts';
+import { LRUCache } from '@/deps.ts';
 
 type FetchFn<K extends {}, V extends {}, O extends {}> = (key: K, opts: O) => Promise<V>;
 
@@ -12,7 +12,7 @@ export class SimpleLRU<
   K extends {},
   V extends {},
   O extends {} = FetchFnOpts,
-> implements MapCache<K, V, O> {
+> {
   protected cache: LRUCache<K, V, void>;
 
   constructor(fetchFn: FetchFn<K, V, { signal: AbortSignal }>, opts: LRUCache.Options<K, V, void>) {