69 lines
2.5 KiB
Dart
69 lines
2.5 KiB
Dart
import 'package:flutter/foundation.dart';
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import '../services/storage_service.dart';
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/// Provider for managing hidden library state across the app.
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/// This ensures that when a library is hidden/unhidden in one screen,
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/// all other screens are automatically updated.
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class HiddenLibrariesProvider extends ChangeNotifier {
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late StorageService _storageService;
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Set<String> _hiddenLibraryKeys = {};
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bool _isInitialized = false;
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Future<void>? _initFuture;
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HiddenLibrariesProvider() {
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// Start initialization eagerly to reduce race conditions
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_initFuture = _initialize();
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}
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/// Ensures the provider is initialized. Call this before accessing hidden
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/// libraries in contexts where you need the actual persisted values.
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Future<void> ensureInitialized() => _initFuture ?? _initialize();
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/// Check if the provider has completed initialization
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bool get isInitialized => _isInitialized;
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/// Get an unmodifiable copy of hidden library keys
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Set<String> get hiddenLibraryKeys => Set.unmodifiable(_hiddenLibraryKeys);
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/// Initialize the provider by loading hidden libraries from storage
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Future<void> _initialize() async {
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if (_isInitialized) return;
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_storageService = await StorageService.getInstance();
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_hiddenLibraryKeys = _storageService.getHiddenLibraries();
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_isInitialized = true;
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notifyListeners();
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}
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/// Hide a library by its key
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/// Updates both in-memory state and persistent storage
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Future<void> hideLibrary(String libraryKey) async {
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if (!_isInitialized) await _initialize();
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if (!_hiddenLibraryKeys.contains(libraryKey)) {
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_hiddenLibraryKeys = Set.from(_hiddenLibraryKeys)..add(libraryKey);
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await _storageService.saveHiddenLibraries(_hiddenLibraryKeys);
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notifyListeners();
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}
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}
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/// Unhide a library by its key
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/// Updates both in-memory state and persistent storage
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Future<void> unhideLibrary(String libraryKey) async {
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if (!_isInitialized) await _initialize();
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if (_hiddenLibraryKeys.contains(libraryKey)) {
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_hiddenLibraryKeys = Set.from(_hiddenLibraryKeys)..remove(libraryKey);
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await _storageService.saveHiddenLibraries(_hiddenLibraryKeys);
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notifyListeners();
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}
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}
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/// Check if a specific library is hidden
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bool isLibraryHidden(String libraryKey) => _hiddenLibraryKeys.contains(libraryKey);
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/// Refresh hidden libraries from storage
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/// Useful if storage was modified outside the provider
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Future<void> refresh() async {
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_hiddenLibraryKeys = _storageService.getHiddenLibraries();
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notifyListeners();
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}
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}
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