prepare for multiple apps

apps/weblibre/lib/features/user/domain/providers/backup_directory.dart

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2024-2026 Fabian Freund.
+ *
+ * This file is part of WebLibre
+ * (see https://weblibre.eu).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+import 'package:riverpod/experimental/persist.dart';
+import 'package:riverpod_annotation/experimental/persist.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:weblibre/features/user/data/providers.dart';
+
+part 'backup_directory.g.dart';
+
+@Riverpod(keepAlive: true)
+class BackupDirectoryUri extends _$BackupDirectoryUri {
+  // ignore: use_setters_to_change_properties
+  void set(Uri? value) => state = value;
+
+  @override
+  Uri? build() {
+    persist(
+      ref.watch(riverpodDatabaseStorageProvider),
+      key: 'BackupDirectoryUri',
+      encode: (state) => state?.toString() ?? '',
+      decode: (encoded) => encoded.isEmpty ? null : Uri.parse(encoded),
+    );
+
+    return stateOrNull;
+  }
+}

apps/weblibre/lib/features/user/domain/providers/backup_directory.g.dart

@@ -0,0 +1,63 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'backup_directory.dart';
+
+// **************************************************************************
+// RiverpodGenerator
+// **************************************************************************
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint, type=warning
+
+@ProviderFor(BackupDirectoryUri)
+final backupDirectoryUriProvider = BackupDirectoryUriProvider._();
+
+final class BackupDirectoryUriProvider
+    extends $NotifierProvider<BackupDirectoryUri, Uri?> {
+  BackupDirectoryUriProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'backupDirectoryUriProvider',
+        isAutoDispose: false,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$backupDirectoryUriHash();
+
+  @$internal
+  @override
+  BackupDirectoryUri create() => BackupDirectoryUri();
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(Uri? value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<Uri?>(value),
+    );
+  }
+}
+
+String _$backupDirectoryUriHash() =>
+    r'4e5f4e7bde90b2a92c559afe8774ed5ee503277d';
+
+abstract class _$BackupDirectoryUri extends $Notifier<Uri?> {
+  Uri? build();
+  @$mustCallSuper
+  @override
+  void runBuild() {
+    final ref = this.ref as $Ref<Uri?, Uri?>;
+    final element =
+        ref.element
+            as $ClassProviderElement<
+              AnyNotifier<Uri?, Uri?>,
+              Uri?,
+              Object?,
+              Object?
+            >;
+    element.handleCreate(ref, build);
+  }
+}

apps/weblibre/lib/features/user/domain/providers/profile_auth.dart

@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2024-2026 Fabian Freund.
+ *
+ * This file is part of WebLibre
+ * (see https://weblibre.eu).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+import 'package:flutter/foundation.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:weblibre/features/user/domain/providers.dart';
+import 'package:weblibre/features/user/domain/services/local_authentication.dart';
+
+part 'profile_auth.g.dart';
+
+String profileAccessAuthKey(String profileId) => 'profile_access::$profileId';
+
+@Riverpod(keepAlive: true)
+class ProfileAuthState extends _$ProfileAuthState {
+  bool _bootstrapped = false;
+
+  Future<void> bootstrapFromProfile() async {
+    if (_bootstrapped) return;
+
+    final profile = await ref.read(selectedProfileProvider.future);
+    if (!ref.mounted) return;
+
+    _bootstrapped = true;
+
+    if (!profile.authSettings.authenticationRequired) {
+      _unlock();
+    }
+  }
+
+  Future<bool> authenticate() async {
+    final profile = await ref.read(selectedProfileProvider.future);
+    if (!ref.mounted) return false;
+
+    if (!profile.authSettings.authenticationRequired) {
+      _unlock();
+      return true;
+    }
+
+    final result = await ref
+        .read(localAuthenticationServiceProvider.notifier)
+        .authenticate(
+          authKey: profileAccessAuthKey(profile.id),
+          localizedReason: 'Unlock profile',
+          settings: profile.authSettings,
+          useAuthCache: true,
+        );
+
+    if (!ref.mounted) return false;
+
+    state = result;
+    return result;
+  }
+
+  Future<void> revalidateAfterResume() async {
+    if (!state) return;
+
+    final profile = await ref.read(selectedProfileProvider.future);
+    if (!ref.mounted || !profile.authSettings.authenticationRequired) return;
+
+    final cached = ref
+        .read(localAuthenticationServiceProvider.notifier)
+        .isCached(profileAccessAuthKey(profile.id));
+
+    if (!cached && ref.mounted) {
+      _lock();
+    }
+  }
+
+  void _lock() {
+    state = false;
+  }
+
+  void _unlock() {
+    state = true;
+  }
+
+  @override
+  bool build() {
+    return false;
+  }
+}
+
+@Riverpod(keepAlive: true)
+Raw<ProfileAuthNotifier> profileAuthNotifier(Ref ref) {
+  final notifier = ProfileAuthNotifier();
+
+  ref.listen<bool>(profileAuthStateProvider, (_, _) {
+    notifier.notify();
+  });
+
+  ref.onDispose(notifier.dispose);
+
+  return notifier;
+}
+
+class ProfileAuthNotifier extends ChangeNotifier {
+  void notify() => notifyListeners();
+}

apps/weblibre/lib/features/user/domain/providers/profile_auth.g.dart

@@ -0,0 +1,110 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'profile_auth.dart';
+
+// **************************************************************************
+// RiverpodGenerator
+// **************************************************************************
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint, type=warning
+
+@ProviderFor(ProfileAuthState)
+final profileAuthStateProvider = ProfileAuthStateProvider._();
+
+final class ProfileAuthStateProvider
+    extends $NotifierProvider<ProfileAuthState, bool> {
+  ProfileAuthStateProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'profileAuthStateProvider',
+        isAutoDispose: false,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$profileAuthStateHash();
+
+  @$internal
+  @override
+  ProfileAuthState create() => ProfileAuthState();
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(bool value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<bool>(value),
+    );
+  }
+}
+
+String _$profileAuthStateHash() => r'9eb65fdb76baa0b088fc12a8063ea4ee63d54ac4';
+
+abstract class _$ProfileAuthState extends $Notifier<bool> {
+  bool build();
+  @$mustCallSuper
+  @override
+  void runBuild() {
+    final ref = this.ref as $Ref<bool, bool>;
+    final element =
+        ref.element
+            as $ClassProviderElement<
+              AnyNotifier<bool, bool>,
+              bool,
+              Object?,
+              Object?
+            >;
+    element.handleCreate(ref, build);
+  }
+}
+
+@ProviderFor(profileAuthNotifier)
+final profileAuthProvider = ProfileAuthNotifierProvider._();
+
+final class ProfileAuthNotifierProvider
+    extends
+        $FunctionalProvider<
+          Raw<ProfileAuthNotifier>,
+          Raw<ProfileAuthNotifier>,
+          Raw<ProfileAuthNotifier>
+        >
+    with $Provider<Raw<ProfileAuthNotifier>> {
+  ProfileAuthNotifierProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'profileAuthProvider',
+        isAutoDispose: false,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$profileAuthNotifierHash();
+
+  @$internal
+  @override
+  $ProviderElement<Raw<ProfileAuthNotifier>> $createElement(
+    $ProviderPointer pointer,
+  ) => $ProviderElement(pointer);
+
+  @override
+  Raw<ProfileAuthNotifier> create(Ref ref) {
+    return profileAuthNotifier(ref);
+  }
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(Raw<ProfileAuthNotifier> value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<Raw<ProfileAuthNotifier>>(value),
+    );
+  }
+}
+
+String _$profileAuthNotifierHash() =>
+    r'795f47b1494e4a9cdd74f5ff22d431b2bc59ffbd';