PoolStore: implement NRelay

deno.json

@@ -19,7 +19,7 @@
     "@db/sqlite": "jsr:@db/sqlite@^0.11.1",
     "@isaacs/ttlcache": "npm:@isaacs/ttlcache@^1.4.1",
     "@noble/secp256k1": "npm:@noble/secp256k1@^2.0.0",
-    "@nostrify/nostrify": "jsr:@nostrify/nostrify@^0.15.0",
+    "@nostrify/nostrify": "jsr:@nostrify/nostrify@^0.17.1",
     "@sentry/deno": "https://deno.land/x/sentry@7.112.2/index.mjs",
     "@soapbox/kysely-deno-sqlite": "jsr:@soapbox/kysely-deno-sqlite@^2.1.0",
     "@soapbox/stickynotes": "jsr:@soapbox/stickynotes@^0.4.0",

src/pipeline.ts

@@ -183,15 +183,19 @@ async function trackHashtags(event: NostrEvent): Promise<void> {
 
 /** Queue related events to fetch. */
 async function fetchRelatedEvents(event: DittoEvent, signal: AbortSignal) {
-  if (!event.user) {
-    Storages.reqmeister.req({ kinds: [0], authors: [event.pubkey] }, { signal }).catch(() => {});
+  if (!event.author) {
+    Storages.reqmeister.req({ kinds: [0], authors: [event.pubkey] }, { signal })
+      .then((event) => handleEvent(event, AbortSignal.timeout(1000)))
+      .catch(() => {});
   }
 
   for (const [name, id, relay] of event.tags) {
     if (name === 'e') {
       const { count } = await Storages.cache.count([{ ids: [id] }]);
       if (!count) {
-        Storages.reqmeister.req({ ids: [id] }, { relays: [relay] }).catch(() => {});
+        Storages.reqmeister.req({ ids: [id] }, { relays: [relay] })
+          .then((event) => handleEvent(event, AbortSignal.timeout(1000)))
+          .catch(() => {});
       }
     }
   }

src/storages.ts

@@ -1,7 +1,6 @@
 import { NCache } from '@nostrify/nostrify';
 import { Conf } from '@/config.ts';
 import { db } from '@/db.ts';
-import * as pipeline from '@/pipeline.ts';
 import { activeRelays, pool } from '@/pool.ts';
 import { EventsDB } from '@/storages/events-db.ts';
 import { Optimizer } from '@/storages/optimizer.ts';
@@ -52,7 +51,6 @@ export class Storages {
       this._client = new PoolStore({
         pool,
         relays: activeRelays,
-        publisher: pipeline,
       });
     }
     return this._client;

src/storages/pool-store.ts

@@ -1,7 +1,16 @@
-import { NostrEvent, NostrFilter, NSet, NStore } from '@nostrify/nostrify';
+import {
+  NostrEvent,
+  NostrFilter,
+  NostrRelayCLOSED,
+  NostrRelayEOSE,
+  NostrRelayEVENT,
+  NRelay,
+  NSet,
+} from '@nostrify/nostrify';
+import { Machina } from '@nostrify/nostrify/utils';
 import Debug from '@soapbox/stickynotes/debug';
 import { RelayPoolWorker } from 'nostr-relaypool';
-import { matchFilters } from 'nostr-tools';
+import { getFilterLimit, matchFilters } from 'nostr-tools';
 
 import { normalizeFilters } from '@/filter.ts';
 import { purifyEvent } from '@/storages/hydrate.ts';
@@ -12,23 +21,16 @@ import { Conf } from '@/config.ts';
 interface PoolStoreOpts {
   pool: InstanceType<typeof RelayPoolWorker>;
   relays: WebSocket['url'][];
-  publisher: {
-    handleEvent(event: NostrEvent, signal: AbortSignal): Promise<void>;
-  };
 }
 
-class PoolStore implements NStore {
-  #debug = Debug('ditto:client');
-  #pool: InstanceType<typeof RelayPoolWorker>;
-  #relays: WebSocket['url'][];
-  #publisher: {
-    handleEvent(event: NostrEvent, signal: AbortSignal): Promise<void>;
-  };
+class PoolStore implements NRelay {
+  private debug = Debug('ditto:client');
+  private pool: InstanceType<typeof RelayPoolWorker>;
+  private relays: WebSocket['url'][];
 
   constructor(opts: PoolStoreOpts) {
-    this.#pool = opts.pool;
-    this.#relays = opts.relays;
-    this.#publisher = opts.publisher;
+    this.pool = opts.pool;
+    this.relays = opts.relays;
   }
 
   async event(event: NostrEvent, opts: { signal?: AbortSignal } = {}): Promise<void> {
@@ -40,58 +42,66 @@ class PoolStore implements NStore {
     const relays = [...relaySet].slice(0, 4);
 
     event = purifyEvent(event);
-    this.#debug('EVENT', event, relays);
+    this.debug('EVENT', event, relays);
 
-    this.#pool.publish(event, relays);
+    this.pool.publish(event, relays);
     return Promise.resolve();
   }
 
-  query(filters: NostrFilter[], opts: { signal?: AbortSignal; limit?: number } = {}): Promise<NostrEvent[]> {
-    if (opts.signal?.aborted) return Promise.reject(abortError());
+  async *req(
+    filters: NostrFilter[],
+    opts: { signal?: AbortSignal; limit?: number } = {},
+  ): AsyncIterable<NostrRelayEVENT | NostrRelayEOSE | NostrRelayCLOSED> {
+    if (opts.signal?.aborted) return;
 
     filters = normalizeFilters(filters);
-    this.#debug('REQ', JSON.stringify(filters));
-    if (!filters.length) return Promise.resolve([]);
+    if (!filters.length) return;
 
-    return new Promise((resolve, reject) => {
-      const results = new NSet();
+    this.debug('REQ', JSON.stringify(filters));
 
-      const unsub = this.#pool.subscribe(
+    const uuid = crypto.randomUUID();
+    const machina = new Machina<NostrRelayEVENT | NostrRelayEOSE | NostrRelayCLOSED>(opts.signal);
+
+    const unsub = this.pool.subscribe(
       filters,
-        this.#relays,
+      this.relays,
       (event: NostrEvent | null) => {
         if (event && matchFilters(filters, event)) {
-            this.#publisher.handleEvent(event, AbortSignal.timeout(1000)).catch(() => {});
-            results.add({
-              id: event.id,
-              kind: event.kind,
-              pubkey: event.pubkey,
-              content: event.content,
-              tags: event.tags,
-              created_at: event.created_at,
-              sig: event.sig,
-            });
-          }
-          if (typeof opts.limit === 'number' && results.size >= opts.limit) {
-            unsub();
-            resolve([...results]);
+          machina.push(['EVENT', uuid, purifyEvent(event)]);
         }
       },
       undefined,
       () => {
-          unsub();
-          resolve([...results]);
+        machina.push(['EOSE', uuid]);
       },
     );
 
-      const onAbort = () => {
+    try {
+      for await (const msg of machina) {
+        yield msg;
+      }
+    } finally {
       unsub();
-        reject(abortError());
-        opts.signal?.removeEventListener('abort', onAbort);
-      };
+    }
+  }
 
-      opts.signal?.addEventListener('abort', onAbort);
-    });
+  async query(filters: NostrFilter[], opts: { signal?: AbortSignal; limit?: number } = {}): Promise<NostrEvent[]> {
+    const events = new NSet();
+
+    const limit = filters.reduce((result, filter) => result + getFilterLimit(filter), 0);
+    if (limit === 0) return [];
+
+    for await (const msg of this.req(filters, opts)) {
+      if (msg[0] === 'EOSE') break;
+      if (msg[0] === 'EVENT') events.add(msg[2]);
+      if (msg[0] === 'CLOSED') throw new Error('Subscription closed');
+
+      if (events.size >= limit) {
+        break;
+      }
+    }
+
+    return [...events];
   }
 }