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fix(market): search your zone by a coarse prefix, not the exact cell

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Discovery searched the full 5-char geohash (~2.4 km) with an exact Nostr tag
match, so two devices in adjacent cells never found each other even though
publish emits the full NIP-52 prefix ladder. Search now coarsens the area to a
configurable precision (SocialSettings.searchPrecision, default 4 ~20 km) via
searchPrefix(), with a human-worded 'how far' selector (Very close / Around
here / My region -> 5/4/3) in the market setup sheet.

Also: surface a clear 'couldn't reach the servers' message when no relay
accepts a share (instead of 'shared 0'), and add wss://relay.comunes.org as the
first default relay (reliable community home; public relays are backup).

Tests: settings precision (default/clamp/roundtrip), searchPrefix helper,
neighbour-cell discovery regression (offers_cubit + commons_core nostr
transports), and the range-selector widget test.
This commit is contained in:
vjrj 2026-07-10 16:12:38 +02:00
parent 1fb8e37536
commit 97b9223cb2
16 changed files with 268 additions and 10 deletions
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22
apps/app_seeds/test/ui/market_screen_test.dart
View file

@ -91,6 +91,28 @@ void main() {
expect(find.text('Retry'), findsOneWidget); // can't-reach state offers retry
});
testWidgets('the range selector persists the chosen search precision',
(tester) async {
final social = await SocialService.fromRootSeedHex('00' * 32);
final settings = SocialSettings(InMemorySecretStore());
await settings.setRelayUrls(const []); // offline: don't hit the network
await tester.pumpWidget(_wrapMarket(social, settings));
await tester.pumpAndSettle();
await tester.tap(find.byKey(const Key('market.config')));
await tester.pumpAndSettle();
// Defaults to the wide "Around here" (precision 4); narrow to "My region".
expect(await settings.searchPrecision(), 4);
await tester.tap(find.text('My region'));
await tester.pumpAndSettle();
await tester.tap(find.byKey(const Key('market.save')));
await tester.pumpAndSettle();
expect(await settings.searchPrecision(), 3);
});
testWidgets('"use my location" fills the area with a coarse geohash',
(tester) async {
final social = await SocialService.fromRootSeedHex('00' * 32);