Load user profile from Nostr, display name and avatar

2026-04-20 13:37:05 +04:00
parent 3a56464926
commit 8cc579e271
5 changed files with 193 additions and 5 deletions
--- a/app/services/nostr-data.js
+++ b/app/services/nostr-data.js
@@ -0,0 +1,158 @@
+import Service, { inject as service } from '@ember/service';
+import { tracked } from '@glimmer/tracking';
+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';
+
+const BOOTSTRAP_RELAYS = [
+  'wss://purplepag.es',
+  'wss://relay.damus.io',
+  'wss://nos.lol',
+];
+
+export default class NostrDataService extends Service {
+  @service nostrRelay;
+  @service nostrAuth;
+
+  store = new EventStore();
+
+  @tracked profile = null;
+  @tracked mailboxes = null;
+  @tracked blossomServers = [];
+
+  _profileSub = null;
+  _mailboxesSub = null;
+  _blossomSub = null;
+
+  _requestSub = null;
+
+  constructor() {
+    super(...arguments);
+
+    // Feed events from the relay pool into the event store
+    this.nostrRelay.pool.relays$.subscribe(() => {
+      // Setup relay subscription tracking if needed, or we just rely on request()
+      // which returns an Observable<NostrEvent>
+    });
+  }
+
+  async loadProfile(pubkey) {
+    if (!pubkey) return;
+
+    // Reset state
+    this.profile = null;
+    this.mailboxes = null;
+    this.blossomServers = [];
+
+    this._cleanupSubscriptions();
+
+    const relays = new Set(BOOTSTRAP_RELAYS);
+
+    // Try to get extension relays
+    if (typeof window.nostr !== 'undefined' && window.nostr.getRelays) {
+      try {
+        const extRelays = await window.nostr.getRelays();
+        for (const url of Object.keys(extRelays)) {
+          relays.add(url);
+        }
+      } catch {
+        console.warn('Failed to get NIP-07 relays');
+      }
+    }
+
+    const relayList = Array.from(relays);
+
+    // Request events and dump them into the store
+    this._requestSub = this.nostrRelay.pool
+      .request(relayList, [
+        {
+          authors: [pubkey],
+          kinds: [0, 10002, 10063],
+        },
+      ])
+      .subscribe({
+        next: (event) => {
+          this.store.add(event);
+        },
+        error: (err) => {
+          console.error('Error fetching profile events:', err);
+        },
+      });
+
+    // Setup models to track state reactively
+    this._profileSub = this.store
+      .model(ProfileModel, pubkey)
+      .subscribe((profileContent) => {
+        this.profile = profileContent;
+      });
+
+    this._mailboxesSub = this.store
+      .model(MailboxesModel, pubkey)
+      .subscribe((mailboxesData) => {
+        this.mailboxes = mailboxesData;
+      });
+
+    this._blossomSub = this.store
+      .replaceable(10063, pubkey)
+      .subscribe((event) => {
+        if (event && event.tags) {
+          this.blossomServers = event.tags
+            .filter((t) => t[0] === 'server' && t[1])
+            .map((t) => t[1]);
+        } else {
+          this.blossomServers = [];
+        }
+      });
+  }
+
+  get userDisplayName() {
+    if (this.profile) {
+      if (this.profile.nip05) {
+        return this.profile.nip05;
+      }
+      if (this.profile.displayName || this.profile.display_name) {
+        return this.profile.displayName || this.profile.display_name;
+      }
+      if (this.profile.name) {
+        return this.profile.name;
+      }
+    }
+
+    // Fallback to npub
+    if (this.nostrAuth.pubkey) {
+      try {
+        const npub = npubEncode(this.nostrAuth.pubkey);
+        return `${npub.slice(0, 9)}...${npub.slice(-4)}`;
+      } catch {
+        return this.nostrAuth.pubkey;
+      }
+    }
+
+    return 'Not connected';
+  }
+
+  _cleanupSubscriptions() {
+    if (this._requestSub) {
+      this._requestSub.unsubscribe();
+      this._requestSub = null;
+    }
+    if (this._profileSub) {
+      this._profileSub.unsubscribe();
+      this._profileSub = null;
+    }
+    if (this._mailboxesSub) {
+      this._mailboxesSub.unsubscribe();
+      this._mailboxesSub = null;
+    }
+    if (this._blossomSub) {
+      this._blossomSub.unsubscribe();
+      this._blossomSub = null;
+    }
+  }
+
+  willDestroy() {
+    super.willDestroy(...arguments);
+    this._cleanupSubscriptions();
+  }
+}