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feat(block2): Ğ1 — publish a Ğ1 address + 'Pay in Ğ1' in chat (levels 1-2)

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The optional Ğ1 (free currency) integration, per g1-integration.md.
- Profile: an optional 'Ğ1 address' field, persisted locally and published in
  your NIP-01 kind:0 metadata (separate from the Nostr key).
- commons_core: UserProfile/ProfileTransport carry a 'g1' field (round-trip
  tested).
- Chat: when the peer published a Ğ1 address, a 'Pay in Ğ1' app-bar action opens
  their wallet (url_launcher) so value moves in the wallet, not the app — copies
  the address as a fallback. No payment rails in-app (sharing-model §4.3).

NOTE (vjrj): the wallet deep-link uses the Cesium web wallet as a universal
fallback; swap the URI in chat_screen._payG1 for the Ğ1nkgo/Ğecko scheme you
prefer. Analyzer clean (both packages); profile transport test covers g1.
This commit is contained in:
vjrj 2026-07-10 13:06:38 +02:00
parent 3067d9ca7f
commit a9c6030dde
13 changed files with 138 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

6
apps/app_seeds/lib/i18n/en.i18n.json
View file

@ -367,6 +367,8 @@
"nameHint": "How others see you",
"about": "About",
"aboutHint": "A short line — what you grow, where",
"g1": "Ğ1 address (optional)",
"g1Hint": "So people can pay you in Ğ1 — separate from your key",
"yourId": "Your identity",
"idHelp": "Share this so people can recognise you",
"copy": "Copy",
@ -383,7 +385,9 @@
"hint": "Write a message…",
"send": "Send",
"empty": "No messages yet — say hello",
"offline": "Set up sharing to send messages"
"offline": "Set up sharing to send messages",
"payG1": "Pay in Ğ1",
"g1Copied": "Ğ1 address copied — paste it in your wallet"
},
"trust": {
"none": "No one vouches for them yet",

6
apps/app_seeds/lib/i18n/es.i18n.json
View file

@ -367,6 +367,8 @@
"nameHint": "Cómo te ven los demás",
"about": "Sobre ti",
"aboutHint": "Una línea — qué cultivas, dónde",
"g1": "Dirección Ğ1 (opcional)",
"g1Hint": "Para que te paguen en Ğ1 — aparte de tu clave",
"yourId": "Tu identidad",
"idHelp": "Compártela para que te reconozcan",
"copy": "Copiar",
@ -383,7 +385,9 @@
"hint": "Escribe un mensaje…",
"send": "Enviar",
"empty": "Aún no hay mensajes — saluda",
"offline": "Configura el compartir para enviar mensajes"
"offline": "Configura el compartir para enviar mensajes",
"payG1": "Pagar en Ğ1",
"g1Copied": "Dirección Ğ1 copiada — pégala en tu cartera"
},
"trust": {
"none": "Nadie los avala aún",

6
apps/app_seeds/lib/i18n/pt.i18n.json
View file

@ -363,6 +363,8 @@
"nameHint": "Como os outros te veem",
"about": "Sobre ti",
"aboutHint": "Uma linha — o que cultivas, onde",
"g1": "Endereço Ğ1 (opcional)",
"g1Hint": "Para que te paguem em Ğ1 — separado da tua chave",
"yourId": "A tua identidade",
"idHelp": "Partilha-a para que te reconheçam",
"copy": "Copiar",
@ -379,7 +381,9 @@
"hint": "Escreve uma mensagem…",
"send": "Enviar",
"empty": "Ainda não há mensagens — diz olá",
"offline": "Configura a partilha para enviar mensagens"
"offline": "Configura a partilha para enviar mensagens",
"payG1": "Pagar em Ğ1",
"g1Copied": "Endereço Ğ1 copiado — cola-o na tua carteira"
},
"trust": {
"none": "Ainda ninguém os avaliza",

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

@ -4,9 +4,9 @@
/// To regenerate, run: `dart run slang`
///
/// Locales: 3
/// Strings: 1031 (343 per locale)
/// Strings: 1043 (347 per locale)
///
/// Built on 2026-07-10 at 10:36 UTC
/// Built on 2026-07-10 at 11:05 UTC
// coverage:ignore-file
// ignore_for_file: type=lint, unused_import

16
apps/app_seeds/lib/i18n/strings_en.g.dart
View file

@ -1167,6 +1167,12 @@ class Translations$profile$en {
/// en: 'A short line — what you grow, where'
String get aboutHint => 'A short line — what you grow, where';
/// en: 'Ğ1 address (optional)'
String get g1 => 'Ğ1 address (optional)';
/// en: 'So people can pay you in Ğ1 — separate from your key'
String get g1Hint => 'So people can pay you in Ğ1 — separate from your key';
/// en: 'Your identity'
String get yourId => 'Your identity';
@ -1223,6 +1229,12 @@ class Translations$chat$en {
/// en: 'Set up sharing to send messages'
String get offline => 'Set up sharing to send messages';
/// en: 'Pay in Ğ1'
String get payG1 => 'Pay in Ğ1';
/// en: 'Ğ1 address copied — paste it in your wallet'
String get g1Copied => 'Ğ1 address copied — paste it in your wallet';
}
// Path: trust
@ -2033,6 +2045,8 @@ extension on Translations {
'profile.nameHint' => 'How others see you',
'profile.about' => 'About',
'profile.aboutHint' => 'A short line — what you grow, where',
'profile.g1' => 'Ğ1 address (optional)',
'profile.g1Hint' => 'So people can pay you in Ğ1 — separate from your key',
'profile.yourId' => 'Your identity',
'profile.idHelp' => 'Share this so people can recognise you',
'profile.copy' => 'Copy',
@ -2046,6 +2060,8 @@ extension on Translations {
'chat.send' => 'Send',
'chat.empty' => 'No messages yet — say hello',
'chat.offline' => 'Set up sharing to send messages',
'chat.payG1' => 'Pay in Ğ1',
'chat.g1Copied' => 'Ğ1 address copied — paste it in your wallet',
'trust.none' => 'No one vouches for them yet',
'trust.count' => ({required Object n}) => 'Vouched for by ${n}',
'trust.vouch' => 'I know this person',

8
apps/app_seeds/lib/i18n/strings_es.g.dart
View file

@ -648,6 +648,8 @@ class _Translations$profile$es extends Translations$profile$en {
@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 g1 => 'Dirección Ğ1 (opcional)';
@override String get g1Hint => 'Para que te paguen en Ğ1 — aparte de tu clave';
@override String get yourId => 'Tu identidad';
@override String get idHelp => 'Compártela para que te reconozcan';
@override String get copy => 'Copiar';
@ -679,6 +681,8 @@ class _Translations$chat$es extends Translations$chat$en {
@override String get send => 'Enviar';
@override String get empty => 'Aún no hay mensajes — saluda';
@override String get offline => 'Configura el compartir para enviar mensajes';
@override String get payG1 => 'Pagar en Ğ1';
@override String get g1Copied => 'Dirección Ğ1 copiada — pégala en tu cartera';
}
// Path: trust
@ -1363,6 +1367,8 @@ extension on TranslationsEs {
'profile.nameHint' => 'Cómo te ven los demás',
'profile.about' => 'Sobre ti',
'profile.aboutHint' => 'Una línea — qué cultivas, dónde',
'profile.g1' => 'Dirección Ğ1 (opcional)',
'profile.g1Hint' => 'Para que te paguen en Ğ1 — aparte de tu clave',
'profile.yourId' => 'Tu identidad',
'profile.idHelp' => 'Compártela para que te reconozcan',
'profile.copy' => 'Copiar',
@ -1376,6 +1382,8 @@ extension on TranslationsEs {
'chat.send' => 'Enviar',
'chat.empty' => 'Aún no hay mensajes — saluda',
'chat.offline' => 'Configura el compartir para enviar mensajes',
'chat.payG1' => 'Pagar en Ğ1',
'chat.g1Copied' => 'Dirección Ğ1 copiada — pégala en tu cartera',
'trust.none' => 'Nadie los avala aún',
'trust.count' => ({required Object n}) => 'Avalada por ${n}',
'trust.vouch' => 'Conozco a esta persona',

8
apps/app_seeds/lib/i18n/strings_pt.g.dart
View file

@ -644,6 +644,8 @@ class _Translations$profile$pt extends Translations$profile$en {
@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 g1 => 'Endereço Ğ1 (opcional)';
@override String get g1Hint => 'Para que te paguem em Ğ1 — separado da tua chave';
@override String get yourId => 'A tua identidade';
@override String get idHelp => 'Partilha-a para que te reconheçam';
@override String get copy => 'Copiar';
@ -675,6 +677,8 @@ class _Translations$chat$pt extends Translations$chat$en {
@override String get send => 'Enviar';
@override String get empty => 'Ainda não há mensagens — diz olá';
@override String get offline => 'Configura a partilha para enviar mensagens';
@override String get payG1 => 'Pagar em Ğ1';
@override String get g1Copied => 'Endereço Ğ1 copiado — cola-o na tua carteira';
}
// Path: trust
@ -1355,6 +1359,8 @@ extension on TranslationsPt {
'profile.nameHint' => 'Como os outros te veem',
'profile.about' => 'Sobre ti',
'profile.aboutHint' => 'Uma linha — o que cultivas, onde',
'profile.g1' => 'Endereço Ğ1 (opcional)',
'profile.g1Hint' => 'Para que te paguem em Ğ1 — separado da tua chave',
'profile.yourId' => 'A tua identidade',
'profile.idHelp' => 'Partilha-a para que te reconheçam',
'profile.copy' => 'Copiar',
@ -1368,6 +1374,8 @@ extension on TranslationsPt {
'chat.send' => 'Enviar',
'chat.empty' => 'Ainda não há mensagens — diz olá',
'chat.offline' => 'Configura a partilha para enviar mensagens',
'chat.payG1' => 'Pagar em Ğ1',
'chat.g1Copied' => 'Endereço Ğ1 copiado — cola-o na tua carteira',
'trust.none' => 'Ainda ninguém os avaliza',
'trust.count' => ({required Object n}) => 'Avalizada por ${n}',
'trust.vouch' => 'Conheço esta pessoa',

11
apps/app_seeds/lib/services/profile_store.dart
View file

@ -9,12 +9,21 @@ class ProfileStore {
final SecretStore _store;
static const _nameKey = 'tane.social.profile.name';
static const _aboutKey = 'tane.social.profile.about';
static const _g1Key = 'tane.social.profile.g1';
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 {
/// Your Ğ1 (Duniter) address, if you chose to share one.
Future<String> g1() async => (await _store.read(_g1Key)) ?? '';
Future<void> save({
required String name,
required String about,
String g1 = '',
}) async {
await _store.write(_nameKey, name.trim());
await _store.write(_aboutKey, about.trim());
await _store.write(_g1Key, g1.trim());
}
}

49
apps/app_seeds/lib/ui/chat_screen.dart
View file

@ -1,7 +1,9 @@
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:url_launcher/url_launcher.dart';
import '../i18n/strings.g.dart';
import '../services/message_store.dart';
@ -45,6 +47,7 @@ class _ChatScreenState extends State<ChatScreen> {
TrustCubit? _trust;
bool _loading = true;
String? _peerName;
String? _peerG1;
final _input = TextEditingController();
@override
@ -94,9 +97,15 @@ class _ChatScreenState extends State<ChatScreen> {
unawaited(() async {
try {
final profile = await live.profile.fetch(widget.peerPubkey);
if (profile != null && profile.name.isNotEmpty && mounted) {
await widget.profileCache!.setName(widget.peerPubkey, profile.name);
setState(() => _peerName = profile.name);
if (profile != null && mounted) {
if (profile.name.isNotEmpty) {
await widget.profileCache!
.setName(widget.peerPubkey, profile.name);
}
setState(() {
if (profile.name.isNotEmpty) _peerName = profile.name;
if (profile.g1.isNotEmpty) _peerG1 = profile.g1;
});
}
} catch (_) {
// best effort
@ -105,6 +114,30 @@ class _ChatScreenState extends State<ChatScreen> {
}
}
/// Opens the peer's Ğ1 wallet so you can pay them (Ğ1 is separate from the
/// Nostr key — this uses the address they published in their profile). Falls
/// back to copying the address if no wallet handles the link.
///
/// NOTE: confirm the deep-link scheme for the target wallet (Ğ1nkgo / Ğecko /
/// Cesium) — this uses the Cesium web wallet as a universal fallback.
Future<void> _payG1() async {
final g1 = _peerG1;
if (g1 == null) return;
final messenger = ScaffoldMessenger.of(context);
final t = context.t;
final uri = Uri.parse('https://demo.cesium.app/#/app/wallet/$g1/');
var launched = false;
try {
launched = await launchUrl(uri, mode: LaunchMode.externalApplication);
} catch (_) {
launched = false;
}
if (!launched && mounted) {
await Clipboard.setData(ClipboardData(text: g1));
messenger.showSnackBar(SnackBar(content: Text(t.chat.g1Copied)));
}
}
Future<void> _send() async {
final cubit = _messages;
if (cubit == null || _input.text.trim().isEmpty) return;
@ -126,9 +159,19 @@ class _ChatScreenState extends State<ChatScreen> {
Widget build(BuildContext context) {
final messages = _messages;
final trust = _trust;
final t = context.t;
return Scaffold(
appBar: AppBar(
title: Text(_peerName ?? shortPubkey(widget.peerPubkey)),
actions: [
if (_peerG1 != null)
IconButton(
key: const Key('chat.payG1'),
icon: const Icon(Icons.payments_outlined),
tooltip: t.chat.payG1,
onPressed: _payG1,
),
],
),
body: _loading || messages == null || trust == null
? const Center(child: CircularProgressIndicator())

17
apps/app_seeds/lib/ui/profile_screen.dart
View file

@ -30,6 +30,7 @@ class ProfileScreen extends StatefulWidget {
class _ProfileScreenState extends State<ProfileScreen> {
final _name = TextEditingController();
final _about = TextEditingController();
final _g1 = TextEditingController();
bool _loading = true;
bool _saving = false;
@ -42,6 +43,7 @@ class _ProfileScreenState extends State<ProfileScreen> {
Future<void> _load() async {
_name.text = await widget.profileStore.name();
_about.text = await widget.profileStore.about();
_g1.text = await widget.profileStore.g1();
if (mounted) setState(() => _loading = false);
}
@ -57,7 +59,8 @@ class _ProfileScreenState extends State<ProfileScreen> {
final messenger = ScaffoldMessenger.of(context);
final t = context.t;
setState(() => _saving = true);
await widget.profileStore.save(name: _name.text, about: _about.text);
await widget.profileStore
.save(name: _name.text, about: _about.text, g1: _g1.text);
// Best-effort publish to the network so peers see the name.
final relays = await widget.settings.relayUrls();
@ -67,6 +70,7 @@ class _ProfileScreenState extends State<ProfileScreen> {
await session.profile.publish(
name: _name.text.trim(),
about: _about.text.trim(),
g1: _g1.text.trim(),
);
await session.close();
} catch (_) {
@ -82,6 +86,7 @@ class _ProfileScreenState extends State<ProfileScreen> {
void dispose() {
_name.dispose();
_about.dispose();
_g1.dispose();
super.dispose();
}
@ -116,6 +121,16 @@ class _ProfileScreenState extends State<ProfileScreen> {
helperText: t.profile.aboutHint,
),
),
const SizedBox(height: 16),
TextField(
key: const Key('profile.g1'),
controller: _g1,
decoration: InputDecoration(
labelText: t.profile.g1,
helperText: t.profile.g1Hint,
helperMaxLines: 2,
),
),
const SizedBox(height: 24),
FilledButton(
key: const Key('profile.save'),

3
packages/commons_core/lib/src/social/nostr/nostr_profile_transport.dart
View file

@ -19,11 +19,13 @@ class NostrProfileTransport implements ProfileTransport {
String name = '',
String about = '',
String picture = '',
String g1 = '',
}) async {
final content = jsonEncode({
if (name.isNotEmpty) 'name': name,
if (about.isNotEmpty) 'about': about,
if (picture.isNotEmpty) 'picture': picture,
if (g1.isNotEmpty) 'g1': g1,
});
final event = Event.from(
kind: kindMetadata,
@ -50,6 +52,7 @@ class NostrProfileTransport implements ProfileTransport {
name: (map['name'] as String?) ?? '',
about: (map['about'] as String?) ?? '',
picture: (map['picture'] as String?) ?? '',
g1: (map['g1'] as String?) ?? '',
);
} catch (_) {
return UserProfile(pubkeyHex: pubkeyHex);

10
packages/commons_core/lib/src/social/profile_transport.dart
View file

@ -6,6 +6,7 @@ class UserProfile {
this.name = '',
this.about = '',
this.picture = '',
this.g1 = '',
});
final String pubkeyHex;
@ -13,7 +14,12 @@ class UserProfile {
final String about;
final String picture;
bool get isEmpty => name.isEmpty && about.isEmpty && picture.isEmpty;
/// Optional Ğ1 (Duniter) address the person chose to publish, so peers can pay
/// them in Ğ1. Separate from the Nostr key; empty when not shared.
final String g1;
bool get isEmpty =>
name.isEmpty && about.isEmpty && picture.isEmpty && g1.isEmpty;
}
/// Publish/fetch public profile metadata. Kind:0 is replaceable — publishing
@ -21,7 +27,7 @@ class UserProfile {
/// 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});
Future<void> publish({String name, String about, String picture, String g1});
/// Fetches [pubkeyHex]'s latest profile, or null if they never published one.
Future<UserProfile?> fetch(String pubkeyHex);

8
packages/commons_core/test/social/nostr_profile_test.dart
View file

@ -16,8 +16,11 @@ void main() {
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');
await NostrProfileTransport(aliceConn).publish(
name: 'Alicia',
about: 'Guardo tomate rosa',
g1: 'G1abc123',
);
// Anyone else can fetch it.
final bob = await idFor(2);
@ -28,6 +31,7 @@ void main() {
expect(fetched, isNotNull);
expect(fetched!.name, 'Alicia');
expect(fetched.about, 'Guardo tomate rosa');
expect(fetched.g1, 'G1abc123');
await aliceConn.close();
await bobConn.close();