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refactor: lokale Nachrichtensuche als eigenes Modul (lib/features/search) + 5 Vertragstests

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Verhaltensgleich aus search_modal.dart herausgeloest (gleiche Deckel 1500/60/500,
gleiche Schleife; Medien-Filter jetzt Parameter). Tests laufen ueber die echte
SDK-DB-Schicht mit synthetischen Daten (test/support/synthetic_matrix_data.dart).

Co-Authored-By: Claude Opus 5.5 <[email protected]>
This commit is contained in:
Bernd Steckmeister
2026-10-07 11:55:28 +02:00
co-authored by Claude Opus 5.5
parent b2413ef627
commit d5ff7982a0
4 changed files with 377 additions and 40 deletions
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lib/widgets/search_modal.dart
+6 -40
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@@ -7,6 +7,7 @@ import 'package:matrix/matrix.dart';
import 'package:pyramid/core/app_state.dart';
import 'package:pyramid/core/matrix_client.dart';
import 'package:pyramid/core/theme.dart';
import 'package:pyramid/features/search/local_message_search.dart';
import 'package:pyramid/widgets/mxc_image.dart';
// ─── State ────────────────────────────────────────────────────────────────────
@@ -110,7 +111,11 @@ class _SearchModalState extends ConsumerState<SearchModal> {
List<Event> messageResults = [];
if (_filter != _Filter.people) {
try {
messageResults = await _localMessageSearch(client, q);
messageResults = await localMessageSearch(
client,
q,
mediaOnly: _filter == _Filter.media,
);
} catch (e) {
setState(() => _state = _state.copyWith(
loading: false,
@@ -129,45 +134,6 @@ class _SearchModalState extends ConsumerState<SearchModal> {
}
}
// Scans the local (decrypted) event database across all rooms for messages
// whose body matches the query. For the media filter, only media messages
// whose filename/caption matches are returned.
Future<List<Event>> _localMessageSearch(Client client, String q) async {
final db = client.database;
final lower = q.toLowerCase();
final media = _filter == _Filter.media;
const mediaTypes = {'m.image', 'm.video', 'm.file', 'm.audio'};
const perRoomScanCap = 1500;
const totalCap = 60;
const chunk = 500;
final results = <Event>[];
for (final room in client.rooms.where((r) => !r.isSpace)) {
var start = 0;
var scanned = 0;
try {
while (scanned < perRoomScanCap) {
final events = await db.getEventList(room, start: start, limit: chunk);
if (events.isEmpty) break;
for (final e in events) {
if (e.type != EventTypes.Message || e.redacted) continue;
final msgtype = e.content.tryGet<String>('msgtype') ?? '';
if (media && !mediaTypes.contains(msgtype)) continue;
if (!e.body.toLowerCase().contains(lower)) continue;
results.add(e);
}
start += chunk;
scanned += events.length;
if (events.length < chunk || results.length >= totalCap) break;
}
} catch (_) {}
if (results.length >= totalCap) break;
}
results.sort((a, b) => b.originServerTs.compareTo(a.originServerTs));
return results.take(totalCap).toList();
}
void _openRoom(String roomId, {String? eventId}) {
widget.onClose();
ref.read(activeRoomIdProvider.notifier).state = roomId;