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feat(block2): profiles — your identity card + name/about (NIP-01 kind:0)

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Drawer 'Profile' is now live.
- commons_core: ProfileTransport + UserProfile + NostrProfileTransport (kind:0
  publish/fetch), exposed as SocialSession.profile. Round-trip tested against the
  in-process relay (fast dart test).
- app: ProfileStore (local name/about, keystore) + ProfileScreen — shows your
  shareable npub with copy, edits display name + 'about', saves locally and (when
  online) publishes kind:0 so peers can recognise you instead of a raw key.
- Drawer 'Profile' -> /profile (gated like Market/Chat).
- i18n en/es/pt. ProfileStore + profile transport covered by plain/dart tests.

Analyzer clean (both packages).
This commit is contained in:
vjrj 2026-07-10 12:37:07 +02:00
parent abc2d37402
commit 30246f4292
19 changed files with 562 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

17
apps/app_seeds/lib/app.dart
View file

@ -12,6 +12,7 @@ import 'services/coarse_location.dart';
import 'services/message_store.dart';
import 'services/offer_outbox.dart';
import 'services/onboarding_store.dart';
import 'services/profile_store.dart';
import 'services/social_service.dart';
import 'services/social_settings.dart';
import 'state/inventory_cubit.dart';
@ -24,6 +25,7 @@ import 'ui/home_screen.dart';
import 'ui/intro_screen.dart';
import 'ui/inventory_list_screen.dart';
import 'ui/market_screen.dart';
import 'ui/profile_screen.dart';
import 'ui/settings_screen.dart';
import 'ui/theme.dart';
import 'ui/variety_detail_screen.dart';
@ -41,6 +43,7 @@ class TaneApp extends StatelessWidget {
this.location,
this.outbox,
this.messageStore,
this.profileStore,
this.showIntro = false,
this.autoBackup,
super.key,
@ -53,6 +56,7 @@ class TaneApp extends StatelessWidget {
location,
outbox,
messageStore,
profileStore,
);
final VarietyRepository repository;
@ -72,6 +76,9 @@ class TaneApp extends StatelessWidget {
/// Optional persistence for chat history.
final MessageStore? messageStore;
/// Optional local store for your own profile (name/about).
final ProfileStore? profileStore;
final bool showIntro;
/// Drives silent periodic backups off the app lifecycle. Null in widget tests
@ -88,6 +95,7 @@ class TaneApp extends StatelessWidget {
CoarseLocationProvider? location,
OfferOutbox? outbox,
MessageStore? messageStore,
ProfileStore? profileStore,
) {
return GoRouter(
initialLocation: showIntro ? '/intro' : '/',
@ -112,6 +120,15 @@ class TaneApp extends StatelessWidget {
path: '/messages',
builder: (context, state) => ChatListScreen(store: messageStore),
),
if (social != null && socialSettings != null && profileStore != null)
GoRoute(
path: '/profile',
builder: (context, state) => ProfileScreen(
social: social,
settings: socialSettings,
profileStore: profileStore,
),
),
if (social != null && socialSettings != null)
GoRoute(
path: '/chat/:pubkey',

2
apps/app_seeds/lib/di/injector.dart
View file

@ -29,6 +29,7 @@ import '../services/recovery_sheet_service.dart';
import '../services/share_catalog_service.dart';
import '../services/message_store.dart';
import '../services/offer_outbox.dart';
import '../services/profile_store.dart';
import '../services/social_service.dart';
import '../services/social_settings.dart';
@ -92,6 +93,7 @@ Future<void> configureDependencies() async {
..registerSingleton<SocialSettings>(SocialSettings(secretStore))
..registerSingleton<OfferOutbox>(OfferOutbox(secretStore))
..registerSingleton<MessageStore>(MessageStore(secretStore))
..registerSingleton<ProfileStore>(ProfileStore(secretStore))
..registerSingleton<ExportImportService>(
ExportImportService(
repository: varietyRepository,

13
apps/app_seeds/lib/i18n/en.i18n.json
View file

@ -361,6 +361,19 @@
"locationFailed": "Couldn't get your location — check that location is on and the permission is granted",
"queued": "Saved — we'll share these when you're connected"
},
"profile": {
"title": "Your profile",
"name": "Display name",
"nameHint": "How others see you",
"about": "About",
"aboutHint": "A short line — what you grow, where",
"yourId": "Your identity",
"idHelp": "Share this so people can recognise you",
"copy": "Copy",
"copied": "Copied",
"save": "Save",
"saved": "Profile saved"
},
"chatList": {
"title": "Messages",
"empty": "No conversations yet. Message someone from the market."

13
apps/app_seeds/lib/i18n/es.i18n.json
View file

@ -361,6 +361,19 @@
"locationFailed": "No se pudo obtener tu ubicación — comprueba que la ubicación está activada y el permiso concedido",
"queued": "Guardado — las compartiremos cuando tengas conexión"
},
"profile": {
"title": "Tu perfil",
"name": "Nombre",
"nameHint": "Cómo te ven los demás",
"about": "Sobre ti",
"aboutHint": "Una línea — qué cultivas, dónde",
"yourId": "Tu identidad",
"idHelp": "Compártela para que te reconozcan",
"copy": "Copiar",
"copied": "Copiado",
"save": "Guardar",
"saved": "Perfil guardado"
},
"chatList": {
"title": "Mensajes",
"empty": "Aún no hay conversaciones. Escribe a alguien desde el mercado."

13
apps/app_seeds/lib/i18n/pt.i18n.json
View file

@ -357,6 +357,19 @@
"locationFailed": "Não foi possível obter a tua localização — verifica se a localização está ativa e a permissão concedida",
"queued": "Guardado — vamos partilhá-las quando tiveres ligação"
},
"profile": {
"title": "O teu perfil",
"name": "Nome",
"nameHint": "Como os outros te veem",
"about": "Sobre ti",
"aboutHint": "Uma linha — o que cultivas, onde",
"yourId": "A tua identidade",
"idHelp": "Partilha-a para que te reconheçam",
"copy": "Copiar",
"copied": "Copiado",
"save": "Guardar",
"saved": "Perfil guardado"
},
"chatList": {
"title": "Mensagens",
"empty": "Ainda não há conversas. Escreve a alguém a partir do mercado."

4
apps/app_seeds/lib/i18n/strings.g.dart
View file

@ -4,9 +4,9 @@
/// To regenerate, run: `dart run slang`
///
/// Locales: 3
/// Strings: 998 (332 per locale)
/// Strings: 1031 (343 per locale)
///
/// Built on 2026-07-10 at 10:26 UTC
/// Built on 2026-07-10 at 10:36 UTC
// coverage:ignore-file
// ignore_for_file: type=lint, unused_import

54
apps/app_seeds/lib/i18n/strings_en.g.dart
View file

@ -70,6 +70,7 @@ class Translations with BaseTranslations<AppLocale, Translations> {
late final Translations$desiccant$en desiccant = Translations$desiccant$en.internal(_root);
late final Translations$unit$en unit = Translations$unit$en.internal(_root);
late final Translations$market$en market = Translations$market$en.internal(_root);
late final Translations$profile$en profile = Translations$profile$en.internal(_root);
late final Translations$chatList$en chatList = Translations$chatList$en.internal(_root);
late final Translations$chat$en chat = Translations$chat$en.internal(_root);
late final Translations$trust$en trust = Translations$trust$en.internal(_root);
@ -1143,6 +1144,48 @@ class Translations$market$en {
String get queued => 'Saved — we\'ll share these when you\'re connected';
}
// Path: profile
class Translations$profile$en {
Translations$profile$en.internal(this._root);
final Translations _root; // ignore: unused_field
// Translations
/// en: 'Your profile'
String get title => 'Your profile';
/// en: 'Display name'
String get name => 'Display name';
/// en: 'How others see you'
String get nameHint => 'How others see you';
/// en: 'About'
String get about => 'About';
/// en: 'A short line — what you grow, where'
String get aboutHint => 'A short line — what you grow, where';
/// en: 'Your identity'
String get yourId => 'Your identity';
/// en: 'Share this so people can recognise you'
String get idHelp => 'Share this so people can recognise you';
/// en: 'Copy'
String get copy => 'Copy';
/// en: 'Copied'
String get copied => 'Copied';
/// en: 'Save'
String get save => 'Save';
/// en: 'Profile saved'
String get saved => 'Profile saved';
}
// Path: chatList
class Translations$chatList$en {
Translations$chatList$en.internal(this._root);
@ -1985,6 +2028,17 @@ extension on Translations {
'market.useLocation' => 'Use my approximate location',
'market.locationFailed' => 'Couldn\'t get your location — check that location is on and the permission is granted',
'market.queued' => 'Saved — we\'ll share these when you\'re connected',
'profile.title' => 'Your profile',
'profile.name' => 'Display name',
'profile.nameHint' => 'How others see you',
'profile.about' => 'About',
'profile.aboutHint' => 'A short line — what you grow, where',
'profile.yourId' => 'Your identity',
'profile.idHelp' => 'Share this so people can recognise you',
'profile.copy' => 'Copy',
'profile.copied' => 'Copied',
'profile.save' => 'Save',
'profile.saved' => 'Profile saved',
'chatList.title' => 'Messages',
'chatList.empty' => 'No conversations yet. Message someone from the market.',
'chat.title' => 'Chat',

32
apps/app_seeds/lib/i18n/strings_es.g.dart
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@ -69,6 +69,7 @@ class TranslationsEs extends Translations with BaseTranslations<AppLocale, Trans
@override late final _Translations$desiccant$es desiccant = _Translations$desiccant$es._(_root);
@override late final _Translations$unit$es unit = _Translations$unit$es._(_root);
@override late final _Translations$market$es market = _Translations$market$es._(_root);
@override late final _Translations$profile$es profile = _Translations$profile$es._(_root);
@override late final _Translations$chatList$es chatList = _Translations$chatList$es._(_root);
@override late final _Translations$chat$es chat = _Translations$chat$es._(_root);
@override late final _Translations$trust$es trust = _Translations$trust$es._(_root);
@ -635,6 +636,26 @@ class _Translations$market$es extends Translations$market$en {
@override String get queued => 'Guardado — las compartiremos cuando tengas conexión';
}
// Path: profile
class _Translations$profile$es extends Translations$profile$en {
_Translations$profile$es._(TranslationsEs root) : this._root = root, super.internal(root);
final TranslationsEs _root; // ignore: unused_field
// Translations
@override String get title => 'Tu perfil';
@override String get name => 'Nombre';
@override String get nameHint => 'Cómo te ven los demás';
@override String get about => 'Sobre ti';
@override String get aboutHint => 'Una línea — qué cultivas, dónde';
@override String get yourId => 'Tu identidad';
@override String get idHelp => 'Compártela para que te reconozcan';
@override String get copy => 'Copiar';
@override String get copied => 'Copiado';
@override String get save => 'Guardar';
@override String get saved => 'Perfil guardado';
}
// Path: chatList
class _Translations$chatList$es extends Translations$chatList$en {
_Translations$chatList$es._(TranslationsEs root) : this._root = root, super.internal(root);
@ -1337,6 +1358,17 @@ extension on TranslationsEs {
'market.useLocation' => 'Usar mi ubicación aproximada',
'market.locationFailed' => 'No se pudo obtener tu ubicación — comprueba que la ubicación está activada y el permiso concedido',
'market.queued' => 'Guardado — las compartiremos cuando tengas conexión',
'profile.title' => 'Tu perfil',
'profile.name' => 'Nombre',
'profile.nameHint' => 'Cómo te ven los demás',
'profile.about' => 'Sobre ti',
'profile.aboutHint' => 'Una línea — qué cultivas, dónde',
'profile.yourId' => 'Tu identidad',
'profile.idHelp' => 'Compártela para que te reconozcan',
'profile.copy' => 'Copiar',
'profile.copied' => 'Copiado',
'profile.save' => 'Guardar',
'profile.saved' => 'Perfil guardado',
'chatList.title' => 'Mensajes',
'chatList.empty' => 'Aún no hay conversaciones. Escribe a alguien desde el mercado.',
'chat.title' => 'Chat',

32
apps/app_seeds/lib/i18n/strings_pt.g.dart
View file

@ -69,6 +69,7 @@ class TranslationsPt extends Translations with BaseTranslations<AppLocale, Trans
@override late final _Translations$desiccant$pt desiccant = _Translations$desiccant$pt._(_root);
@override late final _Translations$unit$pt unit = _Translations$unit$pt._(_root);
@override late final _Translations$market$pt market = _Translations$market$pt._(_root);
@override late final _Translations$profile$pt profile = _Translations$profile$pt._(_root);
@override late final _Translations$chatList$pt chatList = _Translations$chatList$pt._(_root);
@override late final _Translations$chat$pt chat = _Translations$chat$pt._(_root);
@override late final _Translations$trust$pt trust = _Translations$trust$pt._(_root);
@ -631,6 +632,26 @@ class _Translations$market$pt extends Translations$market$en {
@override String get queued => 'Guardado — vamos partilhá-las quando tiveres ligação';
}
// Path: profile
class _Translations$profile$pt extends Translations$profile$en {
_Translations$profile$pt._(TranslationsPt root) : this._root = root, super.internal(root);
final TranslationsPt _root; // ignore: unused_field
// Translations
@override String get title => 'O teu perfil';
@override String get name => 'Nome';
@override String get nameHint => 'Como os outros te veem';
@override String get about => 'Sobre ti';
@override String get aboutHint => 'Uma linha — o que cultivas, onde';
@override String get yourId => 'A tua identidade';
@override String get idHelp => 'Partilha-a para que te reconheçam';
@override String get copy => 'Copiar';
@override String get copied => 'Copiado';
@override String get save => 'Guardar';
@override String get saved => 'Perfil guardado';
}
// Path: chatList
class _Translations$chatList$pt extends Translations$chatList$en {
_Translations$chatList$pt._(TranslationsPt root) : this._root = root, super.internal(root);
@ -1329,6 +1350,17 @@ extension on TranslationsPt {
'market.useLocation' => 'Usar a minha localização aproximada',
'market.locationFailed' => 'Não foi possível obter a tua localização — verifica se a localização está ativa e a permissão concedida',
'market.queued' => 'Guardado — vamos partilhá-las quando tiveres ligação',
'profile.title' => 'O teu perfil',
'profile.name' => 'Nome',
'profile.nameHint' => 'Como os outros te veem',
'profile.about' => 'Sobre ti',
'profile.aboutHint' => 'Uma linha — o que cultivas, onde',
'profile.yourId' => 'A tua identidade',
'profile.idHelp' => 'Partilha-a para que te reconheçam',
'profile.copy' => 'Copiar',
'profile.copied' => 'Copiado',
'profile.save' => 'Guardar',
'profile.saved' => 'Perfil guardado',
'chatList.title' => 'Mensagens',
'chatList.empty' => 'Ainda não há conversas. Escreve a alguém a partir do mercado.',
'chat.title' => 'Conversa',

2
apps/app_seeds/lib/main.dart
View file

@ -10,6 +10,7 @@ import 'services/coarse_location.dart';
import 'services/message_store.dart';
import 'services/offer_outbox.dart';
import 'services/onboarding_store.dart';
import 'services/profile_store.dart';
import 'services/social_service.dart';
import 'services/social_settings.dart';
@ -29,6 +30,7 @@ Future<void> main() async {
location: const GeolocatorCoarseLocation(),
outbox: getIt<OfferOutbox>(),
messageStore: getIt<MessageStore>(),
profileStore: getIt<ProfileStore>(),
showIntro: !await onboarding.introSeen(),
autoBackup: getIt.isRegistered<AutoBackupService>()
? getIt<AutoBackupService>()

20
apps/app_seeds/lib/services/profile_store.dart Normal file
View file

@ -0,0 +1,20 @@
import '../security/secret_store.dart';
/// Your own display name and short "about", persisted locally (keystore-backed,
/// no plaintext at rest). The network copy is a published NIP-01 kind:0 event;
/// this local copy prefills the editor and works offline.
class ProfileStore {
ProfileStore(this._store);
final SecretStore _store;
static const _nameKey = 'tane.social.profile.name';
static const _aboutKey = 'tane.social.profile.about';
Future<String> name() async => (await _store.read(_nameKey)) ?? '';
Future<String> about() async => (await _store.read(_aboutKey)) ?? '';
Future<void> save({required String name, required String about}) async {
await _store.write(_nameKey, name.trim());
await _store.write(_aboutKey, about.trim());
}
}

4
apps/app_seeds/lib/services/social_service.dart
View file

@ -51,13 +51,15 @@ class SocialSession {
SocialSession(this._channel)
: offers = NostrOfferTransport(_channel),
messages = NostrMessageTransport(_channel),
trust = NostrTrustTransport(_channel);
trust = NostrTrustTransport(_channel),
profile = NostrProfileTransport(_channel);
final NostrChannel _channel;
final OfferTransport offers;
final MessageTransport messages;
final TrustTransport trust;
final ProfileTransport profile;
Future<void> close() => _channel.close();
}

11
apps/app_seeds/lib/ui/app_drawer.dart
View file

@ -45,7 +45,16 @@ class AppDrawer extends StatelessWidget {
}
: null,
),
_DrawerItem(icon: const Icon(Icons.person), label: t.menu.profile),
_DrawerItem(
icon: const Icon(Icons.person),
label: t.menu.profile,
onTap: marketEnabled
? () {
Navigator.of(context).pop();
context.go('/profile');
}
: null,
),
_DrawerItem(
icon: const Icon(Icons.chat_bubble),
label: t.menu.chat,

190
apps/app_seeds/lib/ui/profile_screen.dart Normal file
View file

@ -0,0 +1,190 @@
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import '../i18n/strings.g.dart';
import '../services/profile_store.dart';
import '../services/social_service.dart';
import '../services/social_settings.dart';
import 'theme.dart';
/// Your own profile: the shareable identity (npub) plus a display name and short
/// "about" others see instead of a raw key. Saving persists locally and, when
/// online, publishes NIP-01 kind:0 metadata so peers can recognise you.
class ProfileScreen extends StatefulWidget {
const ProfileScreen({
required this.social,
required this.settings,
required this.profileStore,
super.key,
});
final SocialService social;
final SocialSettings settings;
final ProfileStore profileStore;
@override
State<ProfileScreen> createState() => _ProfileScreenState();
}
class _ProfileScreenState extends State<ProfileScreen> {
final _name = TextEditingController();
final _about = TextEditingController();
bool _loading = true;
bool _saving = false;
@override
void initState() {
super.initState();
_load();
}
Future<void> _load() async {
_name.text = await widget.profileStore.name();
_about.text = await widget.profileStore.about();
if (mounted) setState(() => _loading = false);
}
Future<void> _copyId() async {
final messenger = ScaffoldMessenger.of(context);
final t = context.t;
await Clipboard.setData(ClipboardData(text: widget.social.npub));
if (!mounted) return;
messenger.showSnackBar(SnackBar(content: Text(t.profile.copied)));
}
Future<void> _save() async {
final messenger = ScaffoldMessenger.of(context);
final t = context.t;
setState(() => _saving = true);
await widget.profileStore.save(name: _name.text, about: _about.text);
// Best-effort publish to the network so peers see the name.
final relays = await widget.settings.relayUrls();
if (relays.isNotEmpty) {
try {
final session = await widget.social.openSession(relays);
await session.profile.publish(
name: _name.text.trim(),
about: _about.text.trim(),
);
await session.close();
} catch (_) {
// offline / unreachable — the local copy is saved regardless.
}
}
if (!mounted) return;
setState(() => _saving = false);
messenger.showSnackBar(SnackBar(content: Text(t.profile.saved)));
}
@override
void dispose() {
_name.dispose();
_about.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
final t = context.t;
return Scaffold(
appBar: AppBar(title: Text(t.profile.title)),
body: _loading
? const Center(child: CircularProgressIndicator())
: ListView(
padding: const EdgeInsets.all(20),
children: [
_IdentityCard(npub: widget.social.npub, onCopy: _copyId),
const SizedBox(height: 24),
TextField(
key: const Key('profile.name'),
controller: _name,
decoration: InputDecoration(
labelText: t.profile.name,
helperText: t.profile.nameHint,
),
),
const SizedBox(height: 16),
TextField(
key: const Key('profile.about'),
controller: _about,
minLines: 2,
maxLines: 4,
decoration: InputDecoration(
labelText: t.profile.about,
helperText: t.profile.aboutHint,
),
),
const SizedBox(height: 24),
FilledButton(
key: const Key('profile.save'),
onPressed: _saving ? null : _save,
child: _saving
? const SizedBox(
height: 18,
width: 18,
child: CircularProgressIndicator(strokeWidth: 2),
)
: Text(t.profile.save),
),
],
),
);
}
}
class _IdentityCard extends StatelessWidget {
const _IdentityCard({required this.npub, required this.onCopy});
final String npub;
final VoidCallback onCopy;
@override
Widget build(BuildContext context) {
final t = context.t;
return Container(
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: seedPrimaryContainer.withValues(alpha: 0.4),
borderRadius: BorderRadius.circular(14),
border: Border.all(color: seedOutline),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
t.profile.yourId,
style: const TextStyle(
fontWeight: FontWeight.w600,
color: seedOnSurface,
),
),
const SizedBox(height: 4),
Text(
t.profile.idHelp,
style: const TextStyle(color: seedMuted, fontSize: 12),
),
const SizedBox(height: 10),
SelectableText(
npub,
style: const TextStyle(
fontFamily: 'monospace',
fontSize: 12,
color: seedOnSurface,
),
),
const SizedBox(height: 8),
Align(
alignment: AlignmentDirectional.centerEnd,
child: TextButton.icon(
key: const Key('profile.copyId'),
onPressed: onCopy,
icon: const Icon(Icons.copy, size: 16),
label: Text(t.profile.copy),
),
),
],
),
);
}
}

20
apps/app_seeds/test/services/profile_store_test.dart Normal file
View file

@ -0,0 +1,20 @@
import 'package:flutter_test/flutter_test.dart';
import 'package:tane/services/profile_store.dart';
import '../support/test_support.dart';
void main() {
late ProfileStore store;
setUp(() => store = ProfileStore(InMemorySecretStore()));
test('defaults are empty', () async {
expect(await store.name(), '');
expect(await store.about(), '');
});
test('save then read back, trimmed', () async {
await store.save(name: ' Alicia ', about: ' tomate rosa ');
expect(await store.name(), 'Alicia');
expect(await store.about(), 'tomate rosa');
});
}

2
packages/commons_core/lib/commons_core.dart
View file

@ -18,10 +18,12 @@ export 'src/social/nostr/nostr_channel.dart';
export 'src/social/nostr/nostr_connection.dart';
export 'src/social/nostr/nostr_message_transport.dart';
export 'src/social/nostr/nostr_offer_transport.dart';
export 'src/social/nostr/nostr_profile_transport.dart';
export 'src/social/nostr/nostr_trust_transport.dart';
export 'src/social/nostr/relay_pool.dart';
export 'src/social/offer.dart';
export 'src/social/offer_transport.dart';
export 'src/social/profile_transport.dart';
export 'src/social/trust_transport.dart';
export 'src/social/web_of_trust.dart';
export 'src/value/quantity.dart';

61
packages/commons_core/lib/src/social/nostr/nostr_profile_transport.dart Normal file
View file

@ -0,0 +1,61 @@
import 'dart:convert';
import 'package:nostr/nostr.dart';
import '../profile_transport.dart';
import 'nostr_channel.dart';
/// Nostr NIP-01 kind:0 backend for [ProfileTransport], on the shared channel.
class NostrProfileTransport implements ProfileTransport {
NostrProfileTransport(this._conn);
final NostrChannel _conn;
/// NIP-01 set_metadata (replaceable).
static const kindMetadata = 0;
@override
Future<void> publish({
String name = '',
String about = '',
String picture = '',
}) async {
final content = jsonEncode({
if (name.isNotEmpty) 'name': name,
if (about.isNotEmpty) 'about': about,
if (picture.isNotEmpty) 'picture': picture,
});
final event = Event.from(
kind: kindMetadata,
content: content,
tags: const [],
secretKey: _conn.privateKeyHex,
);
await _conn.publish(event);
}
@override
Future<UserProfile?> fetch(String pubkeyHex) async {
final events = await _conn.reqOnce(
Filter(kinds: const [kindMetadata], authors: [pubkeyHex], limit: 1),
);
if (events.isEmpty) return null;
// Newest wins if several slipped through.
events.sort((a, b) => b.createdAt.compareTo(a.createdAt));
final event = events.first;
try {
final map = jsonDecode(event.content) as Map<String, dynamic>;
return UserProfile(
pubkeyHex: pubkeyHex,
name: (map['name'] as String?) ?? '',
about: (map['about'] as String?) ?? '',
picture: (map['picture'] as String?) ?? '',
);
} catch (_) {
return UserProfile(pubkeyHex: pubkeyHex);
}
}
@override
Future<void> close() => _conn.close();
}

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/// A user's public profile (NIP-01 kind:0 metadata) — the human name others see
/// instead of a raw key. Only what the person chooses to publish.
class UserProfile {
const UserProfile({
required this.pubkeyHex,
this.name = '',
this.about = '',
this.picture = '',
});
final String pubkeyHex;
final String name;
final String about;
final String picture;
bool get isEmpty => name.isEmpty && about.isEmpty && picture.isEmpty;
}
/// Publish/fetch public profile metadata. Kind:0 is replaceable — publishing
/// again overwrites. Part of the social layer (identity is generic core), a
/// sibling of the offer/message/trust transports over the same connection.
abstract interface class ProfileTransport {
/// Publishes (replaces) this identity's profile.
Future<void> publish({String name, String about, String picture});
/// Fetches [pubkeyHex]'s latest profile, or null if they never published one.
Future<UserProfile?> fetch(String pubkeyHex);
Future<void> close();
}

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import 'dart:typed_data';
import 'package:commons_core/commons_core.dart';
import 'package:test/test.dart';
import '../support/mini_relay.dart';
void main() {
Future<NostrIdentity> idFor(int fill) =>
NostrKeyDerivation.deriveFromSeed(Uint8List(32)..fillRange(0, 32, fill));
late MiniRelay relay;
setUp(() async => relay = await MiniRelay.start());
tearDown(() async => relay.stop());
test('publish then fetch round-trips a profile (kind:0)', () async {
final alice = await idFor(1);
final aliceConn = await NostrConnection.connect(relay.url, identity: alice);
await NostrProfileTransport(aliceConn)
.publish(name: 'Alicia', about: 'Guardo tomate rosa');
// Anyone else can fetch it.
final bob = await idFor(2);
final bobConn = await NostrConnection.connect(relay.url, identity: bob);
final fetched =
await NostrProfileTransport(bobConn).fetch(alice.publicKeyHex);
expect(fetched, isNotNull);
expect(fetched!.name, 'Alicia');
expect(fetched.about, 'Guardo tomate rosa');
await aliceConn.close();
await bobConn.close();
});
test('fetch returns null when the peer never published a profile', () async {
final me = await idFor(3);
final conn = await NostrConnection.connect(relay.url, identity: me);
final stranger = await idFor(9);
expect(
await NostrProfileTransport(conn).fetch(stranger.publicKeyHex),
isNull,
);
await conn.close();
});
}