feat(chat): usable 1:1 chat — bottom-anchored, Drift-backed, dated

- Anchor the message list to the bottom (`reverse: true`) so new messages
  stay in view instead of landing below the fold.
- Move chat history from the OS keystore (O(n²) JSON blob, silent 200-msg
  cap) to a separate encrypted Drift/SQLCipher DB (`ChatDatabase`):
  indexed append, uncapped history, dedup as a unique-key invariant. It's
  an ephemeral per-device cache, isolated from the inventory schema, its
  migrations, and its sync. No data migration (pre-release).
- Add day separators (Today/Yesterday/locale date) and a per-bubble time,
  all via ICU (12/24h per locale; Localizations locale maps Asturian →
  Spanish for intl date symbols).
- Add peer avatars (deterministic colour from the pubkey + name initial),
  surface send failures that were previously silent, and make bubble text
  selectable (addresses, links).
- New i18n keys in en/es/pt/ast; tests for grouping, formatting, avatars,
  scroll anchoring, storage and send errors.

Docs: docs/design/chat-storage.md + open-decisions.md.
This commit is contained in:
vjrj 2026-07-11 06:39:39 +02:00
parent 171daabce3
commit 6cff0d0b11
27 changed files with 1793 additions and 264 deletions

View file

@ -26,6 +26,19 @@ class FakeMessageTransport implements MessageTransport {
Future<void> close() async => _inbox.close();
}
/// A transport whose [send] always fails (e.g. no relay reachable).
class _FailingSendTransport implements MessageTransport {
@override
Future<void> send({required String toPubkey, required String text}) async =>
throw StateError('no relay');
@override
Stream<PrivateMessage> inbox() => const Stream.empty();
@override
Future<void> close() async {}
}
void main() {
const peer = 'aa';
const me = 'bb';
@ -35,8 +48,8 @@ void main() {
test('receives messages from the peer only', () async {
final transport = FakeMessageTransport();
final cubit =
MessagesCubit(transport, peerPubkey: peer, selfPubkey: me)..start();
final cubit = MessagesCubit(transport, peerPubkey: peer, selfPubkey: me)
..start();
transport.receive(msg(peer, 'hola'));
transport.receive(msg('cc', 'not for this chat')); // other conversation
@ -62,8 +75,8 @@ void main() {
test('a full exchange keeps order and sides', () async {
final transport = FakeMessageTransport();
final cubit =
MessagesCubit(transport, peerPubkey: peer, selfPubkey: me)..start();
final cubit = MessagesCubit(transport, peerPubkey: peer, selfPubkey: me)
..start();
await cubit.send('hi');
transport.receive(msg(peer, 'hello'));
@ -74,6 +87,19 @@ void main() {
await cubit.close();
});
test(
'a failed send surfaces an error and drops the optimistic message',
() async {
final transport = _FailingSendTransport();
final cubit = MessagesCubit(transport, peerPubkey: peer, selfPubkey: me);
await cubit.send('hi');
expect(cubit.state.error, isNotNull);
expect(cubit.state.sending, isFalse);
expect(cubit.state.messages, isEmpty);
await cubit.close();
},
);
test('empty/whitespace text is not sent', () async {
final transport = FakeMessageTransport();
final cubit = MessagesCubit(transport, peerPubkey: peer, selfPubkey: me);
@ -83,57 +109,88 @@ void main() {
await cubit.close();
});
test('loads saved history on start and persists across a new cubit',
() async {
final store = MessageStore(InMemorySecretStore());
await store.append(
peer, msg(peer, 'earlier')); // a message from a previous session
test(
'loads saved history on start and persists across a new cubit',
() async {
// History is ordered by each message's own timestamp, so use realistic
// monotonic times: 'earlier' predates the sent 'hi' (stamped now() by the
// cubit), and 'reply' comes after it.
PrivateMessage at(String from, String text, DateTime when) =>
PrivateMessage(fromPubkey: from, text: text, at: when);
final transport = FakeMessageTransport();
final cubit = MessagesCubit(transport,
peerPubkey: peer, selfPubkey: me, store: store);
await cubit.start();
expect(cubit.state.messages.map((m) => m.text), ['earlier']);
final store = MessageStore(newTestChatDatabase());
await store.append(
peer,
at(peer, 'earlier', DateTime(2020)),
); // from a previous session
await cubit.send('hi'); // persisted
transport.receive(msg(peer, 'reply')); // persisted
await pumpEventQueue();
expect(cubit.state.messages.map((m) => m.text), ['earlier', 'hi', 'reply']);
await cubit.close();
final transport = FakeMessageTransport();
final cubit = MessagesCubit(
transport,
peerPubkey: peer,
selfPubkey: me,
store: store,
);
await cubit.start();
expect(cubit.state.messages.map((m) => m.text), ['earlier']);
// A fresh cubit (even offline) sees the saved conversation.
final reopened =
MessagesCubit(null, peerPubkey: peer, selfPubkey: me, store: store);
await reopened.start();
expect(reopened.state.messages.map((m) => m.text),
['earlier', 'hi', 'reply']);
await reopened.close();
});
await cubit.send('hi'); // persisted, stamped now()
transport.receive(at(peer, 'reply', DateTime(2100))); // persisted, later
await pumpEventQueue();
expect(cubit.state.messages.map((m) => m.text), [
'earlier',
'hi',
'reply',
]);
await cubit.close();
test('a re-delivered wrap is shown once (relay resends stored events)',
() async {
final transport = FakeMessageTransport();
final cubit =
MessagesCubit(transport, peerPubkey: peer, selfPubkey: me)..start();
// A fresh cubit (even offline) sees the saved conversation.
final reopened = MessagesCubit(
null,
peerPubkey: peer,
selfPubkey: me,
store: store,
);
await reopened.start();
expect(reopened.state.messages.map((m) => m.text), [
'earlier',
'hi',
'reply',
]);
await reopened.close();
},
);
final same = msg(peer, 'hola'); // identical sender+timestamp+text
transport.receive(same);
transport.receive(same); // relay re-delivery on the same subscription
await pumpEventQueue();
test(
'a re-delivered wrap is shown once (relay resends stored events)',
() async {
final transport = FakeMessageTransport();
final cubit = MessagesCubit(transport, peerPubkey: peer, selfPubkey: me)
..start();
expect(cubit.state.messages, hasLength(1));
await cubit.close();
});
final same = msg(peer, 'hola'); // identical sender+timestamp+text
transport.receive(same);
transport.receive(same); // relay re-delivery on the same subscription
await pumpEventQueue();
expect(cubit.state.messages, hasLength(1));
await cubit.close();
},
);
test('history already surfaced live is not shown twice', () async {
// The stored message is ALSO handed back by the live subscription on open.
final store = MessageStore(InMemorySecretStore());
final store = MessageStore(newTestChatDatabase());
final m = msg(peer, 'hola');
await store.append(peer, m);
final transport = FakeMessageTransport();
final cubit = MessagesCubit(transport,
peerPubkey: peer, selfPubkey: me, store: store);
final cubit = MessagesCubit(
transport,
peerPubkey: peer,
selfPubkey: me,
store: store,
);
unawaited(cubit.start());
transport.receive(m); // live redelivery races the history load
await pumpEventQueue();
@ -143,7 +200,8 @@ void main() {
});
test('offline (no transport) never throws', () async {
final cubit = MessagesCubit(null, peerPubkey: peer, selfPubkey: me)..start();
final cubit = MessagesCubit(null, peerPubkey: peer, selfPubkey: me)
..start();
expect(cubit.isOnline, isFalse);
await cubit.send('hi');
expect(cubit.state.messages, isEmpty);