mirror of
https://github.com/Yubico/yubioath-flutter.git
synced 2024-11-30 09:47:43 +03:00
122 lines
3.2 KiB
Dart
122 lines
3.2 KiB
Dart
/*
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* Copyright (C) 2022 Yubico.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import '../app/models.dart';
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bool get isDesktop => const [
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TargetPlatform.windows,
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TargetPlatform.macOS,
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TargetPlatform.linux
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].contains(defaultTargetPlatform);
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bool get isAndroid => defaultTargetPlatform == TargetPlatform.android;
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bool get isMicrosoftStore =>
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Platform.isWindows &&
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Platform.resolvedExecutable.contains('\\WindowsApps\\');
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// This must be initialized before use, in main.dart.
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final prefProvider = Provider<SharedPreferences>((ref) {
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throw UnimplementedError();
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});
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abstract class ApplicationStateNotifier<T>
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extends AutoDisposeFamilyAsyncNotifier<T, DevicePath> {
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ApplicationStateNotifier() : super();
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@protected
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Future<void> updateState(Future<T> Function() guarded) async {
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state = await AsyncValue.guard(guarded);
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}
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@protected
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void setData(T value) {
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state = AsyncValue.data(value);
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}
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}
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// Feature flags
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sealed class BaseFeature {
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String get path;
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String _subpath(String key);
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Feature feature(String key, {bool enabled = true}) =>
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Feature._(this, key, enabled: enabled);
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}
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class _RootFeature extends BaseFeature {
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_RootFeature._();
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@override
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String get path => '';
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@override
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String _subpath(String key) => key;
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}
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class Feature extends BaseFeature {
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final BaseFeature parent;
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final String key;
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final bool _defaultState;
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Feature._(this.parent, this.key, {bool enabled = true})
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: _defaultState = enabled;
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@override
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String get path => parent._subpath(key);
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@override
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String _subpath(String key) => '$path.$key';
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}
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final BaseFeature root = _RootFeature._();
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typedef FeatureProvider = bool Function(Feature feature);
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final featureFlagProvider =
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StateNotifierProvider<FeatureFlagsNotifier, Map<String, bool>>(
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(_) => FeatureFlagsNotifier());
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class FeatureFlagsNotifier extends StateNotifier<Map<String, bool>> {
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FeatureFlagsNotifier() : super({});
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void loadConfig(Map<String, dynamic> config) {
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const falsey = [0, false, null];
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state = {for (final k in config.keys) k: !falsey.contains(config[k])};
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}
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void setFeature(Feature feature, dynamic value) {
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state = {...state, feature.path: value};
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}
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}
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final featureProvider = Provider<FeatureProvider>((ref) {
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final featureMap = ref.watch(featureFlagProvider);
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bool isEnabled(BaseFeature feature) => switch (feature) {
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_RootFeature() => true,
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Feature() => isEnabled(feature.parent) &&
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(featureMap[feature.path] ?? feature._defaultState),
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};
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return isEnabled;
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});
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