migrate mozilla caches into profiles

app/lib/core/filesystem.dart

@@ -20,13 +20,12 @@
 import 'dart:async';
 import 'dart:io';
 
-import 'package:collection/collection.dart';
-import 'package:nullability/nullability.dart';
 import 'package:path/path.dart' as p;
 import 'package:path_provider/path_provider.dart' as path_provider;
 import 'package:sqlite3/sqlite3.dart';
 
 import 'package:uuid/uuid.dart';
+import 'package:weblibre/core/logger.dart';
 import 'package:weblibre/domain/entities/profile.dart';
 import 'package:weblibre/utils/filesystem.dart' as fs;
 
@@ -67,94 +66,56 @@ class _Filesystem {
   }
 
   Future<void> clearMozillaProfileCache(String profileId) {
-    return fs.clearMozillaProfileCache(profileId);
+    return fs.clearMozillaProfileCache(selectedProfileDir, profileId);
   }
 
   List<String> getMozillaProfileIds(UuidValue uuid) {
     return fs.getMozillaProfileIds(getProfileDir(uuid));
   }
 
-  Future<String?> checkForDuplicateMozillaProfile(UuidValue profile) async {
+  /// If the old canonical location `{profile}/mozilla/` exists as a real
-    final duplicates = await fs
+  /// directory and the new location `{profile}/files/mozilla/` does not,
-        .getProfilesWithDuplicateMozillaProfiles(profilesDir)
+  /// rename the former to the latter.
-        .then((dirs) => dirs.map((dir) => dir.path).toList());
+  Future<void> _migrateMozillaDirToFiles() async {
-    final profileDir = fs.getProfileDir(profilesDir, profile).path;
+    final oldDir = Directory(p.join(selectedProfileDir.path, 'mozilla'));
-
+    final newDir = Directory(
-    return duplicates
+      p.join(selectedProfileDir.path, 'files', 'mozilla'),
-        .firstWhereOrNull((dir) => p.isWithin(profileDir, dir))
-        .mapNotNull((dir) => p.basename(dir));
-  }
-
-  Future<void> _linkMozillaDir(Directory filesDir) async {
-    final mozillaDir = Directory(p.join(selectedProfileDir.path, 'mozilla'));
-    await mozillaDir.create(recursive: true);
-
-    final mozillaPath = p.join(filesDir.path, 'mozilla');
-
-    Future<void> moveAside(FileSystemEntityType type) async {
-      final backupPath = p.join(
-        filesDir.path,
-        'mozilla.backup.${DateTime.now().millisecondsSinceEpoch}',
     );
 
-      if (type == FileSystemEntityType.directory) {
+    final oldType = await FileSystemEntity.type(
-        await Directory(mozillaPath).rename(backupPath);
+      oldDir.path,
-      } else {
-        await File(mozillaPath).rename(backupPath);
-      }
-    }
-
-    Future<void> createLink() async {
-      await Link(mozillaPath).create(mozillaDir.path);
-    }
-
-    final currentType = await FileSystemEntity.type(
-      mozillaPath,
       followLinks: false,
     );
 
-    switch (currentType) {
+    if (oldType == FileSystemEntityType.directory && !await newDir.exists()) {
-      case FileSystemEntityType.notFound:
+      await Directory(
-        break;
+        p.join(selectedProfileDir.path, 'files'),
-      case FileSystemEntityType.link:
+      ).create(recursive: true);
-        final link = Link(mozillaPath);
+      await oldDir.rename(newDir.path);
-        try {
-          if (await link.target() == mozillaDir.path) {
-            return;
     }
-        } on FileSystemException {
-          // Replace unreadable or broken links.
   }
 
-        await link.delete();
+  Future<void> _migrateGeckoCache() async {
-      case FileSystemEntityType.directory:
+    final profileIds = fs.getMozillaProfileIds(selectedProfileDir);
-      case FileSystemEntityType.file:
+    final globalCacheDir = Directory(p.join(dataDir.path, 'cache'));
-      case FileSystemEntityType.unixDomainSock:
-      case FileSystemEntityType.pipe:
-      default:
-        await moveAside(currentType);
-    }
 
-    try {
+    for (final profileId in profileIds) {
-      await createLink();
+      final oldCache = Directory(p.join(globalCacheDir.path, profileId));
-    } on PathExistsException {
+      final newCache = Directory(
-      final retryType = await FileSystemEntity.type(
+        p.join(selectedProfileDir.path, 'cache', profileId),
-        mozillaPath,
-        followLinks: false,
       );
 
-      if (retryType == FileSystemEntityType.link) {
+      if (await oldCache.exists() && !await newCache.exists()) {
-        final link = Link(mozillaPath);
+        try {
-        if (await link.target() == mozillaDir.path) {
+          await oldCache.rename(newCache.path);
-          return;
+        } catch (e, s) {
+          logger.w(
+            'Failed to migrate Gecko cache for $profileId',
+            error: e,
+            stackTrace: s,
+          );
         }
-
-        await link.delete();
-      } else if (retryType != FileSystemEntityType.notFound) {
-        await moveAside(retryType);
       }
-
-      await createLink();
     }
   }
 
@@ -233,7 +194,8 @@ class _Filesystem {
     );
     await profileDatabasesDir.create();
 
-    await _linkMozillaDir(filesDir);
+    await _migrateMozillaDirToFiles();
+    await _migrateGeckoCache();
     await _setupSqliteCache();
   }
 
@@ -244,8 +206,10 @@ class _Filesystem {
   ) async {
     final profileDir = getProfileDir(defaultProfile.uuidValue);
 
-    final newMozillaDir = Directory(p.join(profileDir.path, 'mozilla'));
+    final newMozillaDir = Directory(
-    await newMozillaDir.create();
+      p.join(profileDir.path, 'files', 'mozilla'),
+    );
+    await newMozillaDir.create(recursive: true);
     await mozillaDir.rename(newMozillaDir.path);
 
     await _copyDirectory(

app/lib/features/user/domain/presentation/dialogs/switch_profile_dialog.dart

@@ -18,70 +18,38 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 import 'package:flutter/material.dart';
-import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:go_router/go_router.dart';
 
-/// Result of the switch profile dialog.
-/// - `shouldSwitch`: Whether the user confirmed the switch.
-/// - `clearCache`: Whether to clear the shared cache.
-typedef SwitchProfileDialogResult = ({bool shouldSwitch, bool clearCache});
-
 /// Shows a confirmation dialog for switching user profiles.
 ///
-/// Returns a [SwitchProfileDialogResult] if the user confirms, or null if dismissed.
+/// Returns `true` if the user confirms the switch, or null if dismissed.
-/// If [duplicateMozillaProfile] is provided, shows an option to clear shared cache.
+Future<bool?> showSwitchProfileDialog(
-Future<SwitchProfileDialogResult?> showSwitchProfileDialog(
   BuildContext context, {
   required String profileName,
-  String? duplicateMozillaProfile,
 }) {
-  return showDialog<SwitchProfileDialogResult>(
+  return showDialog<bool>(
     context: context,
-    builder: (context) => HookBuilder(
+    builder: (context) => AlertDialog(
-      builder: (context) {
-        final clearCache = useState(false);
-
-        return AlertDialog(
       icon: const Icon(Icons.warning),
       title: const Text('Switch User'),
-          content: Column(
+      content: Text(
-            mainAxisSize: MainAxisSize.min,
-            children: [
-              Text(
         "Switching to User '$profileName' will require a restart of the Browser.",
         style: const TextStyle(fontWeight: FontWeight.bold),
       ),
-              const SizedBox(height: 8),
-              if (duplicateMozillaProfile != null)
-                SwitchListTile(
-                  contentPadding: EdgeInsets.zero,
-                  value: clearCache.value,
-                  title: const Text('Clear Shared Cache'),
-                  subtitle: const Text(
-                    'This User has been created based on an exisiting Mozilla Profile Identifier. Clearing cache will affect all linked accounts.',
-                  ),
-                  onChanged: (value) {
-                    clearCache.value = value;
-                  },
-                ),
-            ],
-          ),
       actions: [
         TextButton(
           onPressed: () {
-                context.pop((shouldSwitch: false, clearCache: false));
+            context.pop(false);
           },
           child: const Text('Cancel'),
         ),
         TextButton(
           onPressed: () {
-                context.pop((shouldSwitch: true, clearCache: clearCache.value));
+            context.pop(true);
           },
           child: const Text('Switch Profile'),
         ),
       ],
-        );
-      },
     ),
   );
 }

app/lib/features/user/domain/presentation/utils/profile_switch_handler.dart

@@ -26,12 +26,11 @@ import 'package:weblibre/features/user/domain/repositories/profile.dart';
 import 'package:weblibre/utils/exit_app.dart';
 import 'package:weblibre/utils/ui_helper.dart' as ui_helper;
 
-/// Handles the profile switching flow with confirmation dialog and cache clearing options.
+/// Handles the profile switching flow with confirmation dialog.
 ///
 /// This function:
 /// - Checks if the profile is already active
 /// - Shows a confirmation dialog with browser restart warning
-/// - Optionally clears shared cache for duplicate Mozilla profiles
 /// - Switches to the selected profile and exits the app
 Future<void> handleSwitchProfile(
   BuildContext context,
@@ -48,22 +47,14 @@ Future<void> handleSwitchProfile(
     return;
   }
 
-  final duplicateMozillaProfile = await filesystem
-      .checkForDuplicateMozillaProfile(profile.uuidValue);
-
   if (!context.mounted) return;
 
-  final result = await showSwitchProfileDialog(
+  final shouldSwitch = await showSwitchProfileDialog(
     context,
     profileName: profile.name,
-    duplicateMozillaProfile: duplicateMozillaProfile,
   );
 
-  if (result?.shouldSwitch == true) {
+  if (shouldSwitch == true) {
-    if (duplicateMozillaProfile != null && result?.clearCache == true) {
-      await filesystem.clearMozillaProfileCache(duplicateMozillaProfile);
-    }
-
     await ref
         .read(profileRepositoryProvider.notifier)
         .switchProfile(profile.id);

app/lib/features/user/domain/repositories/profile.dart

@@ -65,12 +65,6 @@ class ProfileRepository extends _$ProfileRepository {
       return false;
     }
 
-    // Clean up Mozilla cache directories before deleting the profile
-    final mozillaProfileIds = filesystem.getMozillaProfileIds(uuid);
-    for (final profileId in mozillaProfileIds) {
-      await filesystem.clearMozillaProfileCache(profileId);
-    }
-
     await filesystem.getProfileDir(uuid).delete(recursive: true);
 
     ref.invalidateSelf();

app/lib/utils/filesystem.dart

@@ -22,11 +22,9 @@ import 'dart:convert';
 import 'dart:io';
 
 import 'package:path/path.dart' as p;
-import 'package:path_provider/path_provider.dart';
 import 'package:uuid/uuid_value.dart';
 import 'package:weblibre/core/logger.dart';
 import 'package:weblibre/domain/entities/profile.dart';
-import 'package:weblibre/extensions/iterable.dart';
 
 const profilesDirName = 'weblibre_profiles';
 const profileDirPrefix = 'profile-';
@@ -44,30 +42,15 @@ final profileTransformer =
       },
     );
 
-final profileMozillaDirectoryTransformer =
-    StreamTransformer<Directory, Directory>.fromHandlers(
-      handleData: (entity, sink) {
-        final mozillaDir = Directory(p.join(entity.path, 'mozilla'));
-
-        if (mozillaDir.existsSync()) {
-          for (final entity in mozillaDir.listSync()) {
-            if (entity is Directory) {
-              final profile = p.basename(entity.path);
-              if (profile.endsWith('.default')) {
-                sink.add(entity);
-              }
-            }
-          }
-        }
-      },
-    );
-
 Future<List<Directory>> getAvailableProfileDirectories(Directory profilesDir) {
   return profilesDir.list().transform(profileTransformer).toList();
 }
 
-Future<void> clearMozillaProfileCache(String profileId) async {
+Future<void> clearMozillaProfileCache(
-  final cacheDir = await getApplicationCacheDirectory();
+  Directory profileDir,
+  String profileId,
+) async {
+  final cacheDir = Directory(p.join(profileDir.path, 'cache'));
   final mozillaCacheDir = Directory(p.join(cacheDir.path, profileId));
 
   if (await mozillaCacheDir.exists()) {
@@ -76,9 +59,9 @@ Future<void> clearMozillaProfileCache(String profileId) async {
 }
 
 /// Returns the list of Mozilla profile IDs (`.default` directory names)
-/// inside the given profile directory's `mozilla/` subdirectory.
+/// inside the given profile directory's `files/mozilla/` subdirectory.
 List<String> getMozillaProfileIds(Directory profileDir) {
-  final mozillaDir = Directory(p.join(profileDir.path, 'mozilla'));
+  final mozillaDir = Directory(p.join(profileDir.path, 'files', 'mozilla'));
   if (!mozillaDir.existsSync()) return [];
 
   return mozillaDir
@@ -89,25 +72,6 @@ List<String> getMozillaProfileIds(Directory profileDir) {
       .toList();
 }
 
-Future<List<Directory>> getProfilesWithDuplicateMozillaProfiles(
-  Directory profilesDir,
-) async {
-  final mozillaProfileDirs = await profilesDir
-      .list()
-      .transform(profileTransformer)
-      .transform(profileMozillaDirectoryTransformer)
-      .toList();
-
-  final duplicates = mozillaProfileDirs
-      .map((dir) => p.basename(dir.path))
-      .findDuplicates()
-      .toSet();
-
-  return mozillaProfileDirs
-      .where((dir) => duplicates.contains(p.basename(dir.path)))
-      .toList();
-}
-
 Future<UuidValue?> readStartupProfile(Directory dir) async {
   final file = File(p.join(dir.path, _startupProfileFileName));