mirror-immich/mobile/lib/infrastructure/repositories/metadata.repository.dart

129 lines
4.1 KiB
Dart

import 'package:drift/drift.dart';
import 'package:immich_mobile/domain/models/config/app_config.dart';
import 'package:immich_mobile/domain/models/config/system_config.dart';
import 'package:immich_mobile/domain/models/metadata_key.dart';
import 'package:immich_mobile/infrastructure/entities/metadata.entity.drift.dart';
import 'package:immich_mobile/infrastructure/repositories/db.repository.dart';
class MetadataRepository extends DriftDatabaseRepository {
final Drift _db;
final Map<MetadataKey, Object> _cache = {};
MetadataRepository._(this._db) : super(_db);
static MetadataRepository? _instance;
static MetadataRepository get instance {
final instance = _instance;
if (instance == null) {
throw StateError('MetadataRepository not initialized. Call ensureInitialized() first');
}
return instance;
}
AppConfig _appConfig = const .new();
AppConfig get appConfig => _appConfig;
SystemConfig _systemConfig = const .new();
SystemConfig get systemConfig => _systemConfig;
static Future<MetadataRepository> ensureInitialized(Drift db) async {
if (_instance == null) {
final instance = MetadataRepository._(db);
await instance._hydrate();
_instance = instance;
}
return _instance!;
}
static Future<void> refresh() async {
instance._cache.clear();
instance._appConfig = const .new();
instance._systemConfig = const .new();
await instance._hydrate();
}
Future<void> _hydrate() async => _hydrateCache(await _db.select(_db.metadataEntity).get());
T _read<T extends Object>(MetadataKey<T> key) => (_cache[key] as T?) ?? key.defaultValue;
Future<void> write<T extends Object, U extends T>(MetadataKey<T> key, U value) async {
if (_read(key) == value) {
return;
}
await _db
.into(_db.metadataEntity)
.insertOnConflictUpdate(
MetadataEntityCompanion.insert(key: key.key, value: key.encode(value), updatedAt: Value(DateTime.now())),
);
_updateCache(key, value);
}
Future<void> delete<T extends Object>(MetadataKey<T> key) async {
await (_db.delete(_db.metadataEntity)..where((t) => t.key.equals(key.key))).go();
_updateCache(key, key.defaultValue);
}
Stream<AppConfig> watchAppConfig() => _watchDomain(.appConfig).distinct();
Stream<SystemConfig> watchSystemConfig() => _watchDomain(.systemConfig).distinct();
Stream<T> _watchDomain<T extends Object>(MetadataDomain<T> domain) {
final query = _db.select(_db.metadataEntity)..where((t) => t.key.like('${domain.prefix}.%'));
return query.watch().map((rows) {
_hydrateCache(rows);
return domain.config(this);
});
}
void _hydrateCache(List<MetadataEntityData> rows) {
final keyMap = MetadataKey.asKeyMap();
for (final row in rows) {
final key = keyMap[row.key];
if (key == null) {
continue;
}
_updateCache(key, key.decode(row.value));
}
}
void _updateCache<T extends Object>(MetadataKey<T> key, T value) {
if (_cache[key] == value) {
return;
}
_cache[key] = value;
key.domain.rebuild(this);
}
}
extension<T extends Object> on MetadataDomain<T> {
T config(MetadataRepository repo) => switch (this) {
.appConfig => repo._appConfig as T,
.systemConfig => repo._systemConfig as T,
};
void rebuild(MetadataRepository repo) {
switch (this) {
case .appConfig:
repo._appConfig = .new(
theme: .new(
mode: repo._read(.themeMode),
primaryColor: repo._read(.themePrimaryColor),
dynamicTheme: repo._read(.themeDynamic),
colorfulInterface: repo._read(.themeColorfulInterface),
),
cleanup: .new(
keepFavorites: repo._read(.cleanupKeepFavorites),
keepMediaType: repo._read(.cleanupKeepMediaType),
keepAlbumIds: repo._read(.cleanupKeepAlbumIds),
cutoffDaysAgo: repo._read(.cleanupCutoffDaysAgo),
defaultsInitialized: repo._read(.cleanupDefaultsInitialized),
),
);
case .systemConfig:
repo._systemConfig = .new(logLevel: repo._read(.logLevel));
}
}
}