Fetch, cache, and update profile data

app/services/nostr-data.js

@@ -1,10 +1,12 @@
 import Service, { service } from '@ember/service';
 import { tracked } from '@glimmer/tracking';
+import { from } from 'rxjs';
 import { EventStore } from 'applesauce-core/event-store';
 import { ProfileModel } from 'applesauce-core/models/profile';
 import { MailboxesModel } from 'applesauce-core/models/mailboxes';
 import { npubEncode } from 'applesauce-core/helpers/pointers';
 import { persistEventsToCache } from 'applesauce-core/helpers/event-cache';
+import { createEventLoaderForStore } from 'applesauce-loaders/loaders';
 import { NostrIDB, openDB } from 'nostr-idb';
 import {
   excludeRequiredRelays,
@@ -35,12 +37,14 @@ export default class NostrDataService extends Service {
   @tracked blossomServers = [];
   @tracked placePhotos = [];
   @tracked myContributionEvents = [];
+  @tracked profiles = {};
 
   _profileSub = null;
   _mailboxesSub = null;
   _blossomSub = null;
   _photosSub = null;
   _contributionsSub = null;
+  _profileModelSubs = new Map();
 
   _requestSub = null;
   _cachePromise = null;
@@ -81,6 +85,13 @@ export default class NostrDataService extends Service {
           maxBatchSize: 100,
         }
       );
+
+      // Set up the event loader so replaceable/event subscriptions auto-fetch
+      // from cache → relay hints → lookup relays with batching and dedup
+      createEventLoaderForStore(this.store, this.nostrRelay.pool, {
+        cacheRequest: (filters) => from(this.cache.query(filters)),
+        lookupRelays: DIRECTORY_RELAYS,
+      });
     });
 
     // Feed events from the relay pool into the event store
@@ -218,6 +229,7 @@ export default class NostrDataService extends Service {
     }
 
     this.placePhotos = [];
+    this._clearProfileSubs();
 
     if (!place || !place.osmId || !place.osmType) {
       return;
@@ -235,6 +247,8 @@ export default class NostrDataService extends Service {
       ])
       .subscribe((events) => {
         this.placePhotos = events;
+        const pubkeys = [...new Set(events.map((e) => e.pubkey))];
+        this.loadProfiles(pubkeys);
       });
 
     try {
@@ -331,6 +345,33 @@ export default class NostrDataService extends Service {
     });
   }
 
+  loadProfiles(pubkeys) {
+    const newPubkeys = pubkeys.filter(
+      (pk) => pk && !this._profileModelSubs.has(pk)
+    );
+
+    for (const pubkey of newPubkeys) {
+      const sub = this.store
+        .model(ProfileModel, pubkey)
+        .subscribe((profileContent) => {
+          this.profiles = { ...this.profiles, [pubkey]: profileContent };
+        });
+      this._profileModelSubs.set(pubkey, sub);
+    }
+  }
+
+  getProfile(pubkey) {
+    return this.profiles[pubkey];
+  }
+
+  _clearProfileSubs() {
+    for (const sub of this._profileModelSubs.values()) {
+      sub.unsubscribe();
+    }
+    this._profileModelSubs.clear();
+    this.profiles = {};
+  }
+
   async loadProfile(pubkey) {
     if (!pubkey) return;
 
@@ -466,6 +507,7 @@ export default class NostrDataService extends Service {
       this._contributionsSub.unsubscribe();
       this._contributionsSub = null;
     }
+    this._clearProfileSubs();
   }
 
   willDestroy() {

package.json

@@ -105,6 +105,7 @@
     "@noble/hashes": "^2.3.0",
     "@waysidemapping/pinhead": "^15.25.0",
     "applesauce-core": "^6.2.0",
+    "applesauce-loaders": "^6.2.0",
     "applesauce-relay": "^6.2.1",
     "applesauce-signers": "^6.2.2",
     "blurhash": "^2.0.5",

pnpm-lock.yaml

@@ -20,6 +20,9 @@ importers:
       applesauce-core:
         specifier: ^6.2.0
         version: 6.2.0(supports-color@10.2.2)(typescript@5.9.3)
+      applesauce-loaders:
+        specifier: ^6.2.0
+        version: 6.2.0(supports-color@10.2.2)(typescript@5.9.3)
       applesauce-relay:
         specifier: ^6.2.1
         version: 6.2.1(supports-color@10.2.2)(typescript@5.9.3)
@@ -2636,6 +2639,9 @@ packages:
   applesauce-core@6.2.0:
     resolution: {integrity: sha512-O6AlVyzqcuIhTOIuexm6UWmx7mRIa2D98gJP7K7vFGf90YdtvSH78AsKQWZXJ0Pk/K14at+9zkwfCkFr7ghgNw==}
 
+  applesauce-loaders@6.2.0:
+    resolution: {integrity: sha512-isU2BuoVFhugv4WxdbUFrqm7mCNgsGrMU4BYcNqMm8qAVpVb3L7K3I1hlkIZWwOvNTkhoYO/u0utgwnkQj4Hrg==}
+
   applesauce-relay@6.2.1:
     resolution: {integrity: sha512-YIUHEtL2Fl5FZjeKYe/IuwL3OnMUNP2j4ydSr3iZDeHEZSEda4d1PoChefiNhtjE/U/F5OBHEbAX1zCHRZoxpg==}
 
@@ -9354,6 +9360,15 @@ snapshots:
       - supports-color
       - typescript
 
+  applesauce-loaders@6.2.0(supports-color@10.2.2)(typescript@5.9.3):
+    dependencies:
+      applesauce-core: 6.2.0(supports-color@10.2.2)(typescript@5.9.3)
+      nanoid: 5.1.9
+      rxjs: 7.8.2
+    transitivePeerDependencies:
+      - supports-color
+      - typescript
+
   applesauce-relay@6.2.1(supports-color@10.2.2)(typescript@5.9.3):
     dependencies:
       '@noble/hashes': 2.3.0