feat: Import and export manager settings (#2268)

assets/i18n/strings.i18n.json

@@ -197,6 +197,12 @@
     "deleteTempDirLabel": "Delete temporary files",
     "deleteTempDirHint": "Delete unused temporary files",
     "deletedTempDir": "Temporary files deleted",
+    "exportSettingsLabel": "Export settings",
+    "exportSettingsHint": "Export settings to a JSON file",
+    "exportedSettings": "Settings exported",
+    "importSettingsLabel": "Import settings",
+    "importSettingsHint": "Import settings from a JSON file",
+    "importedSettings": "Settings imported",
     "exportPatchesLabel": "Export patch selection",
     "exportPatchesHint": "Export patch selection to a JSON file",
     "exportedPatches": "Patch selection exported",

docs/2_4_settings.md

@@ -50,6 +50,7 @@ Learn how to configure ReVanced Manager.
   - 🔑 Keystore used to sign patched apps
   - 📄 Remembered selection of patches for each app
   - ⚙️ Remembered patch options
+  - 🛠️ Remembered settings
 
   > ℹ️ Note  
   > These can be used to backup and restore or reset settings to default in case of issues.

lib/services/manager_api.dart

@@ -755,6 +755,36 @@ class ManagerAPI {
     return jsonDecode(string);
   }
 
+  String exportSettings() {
+    final Map<String, dynamic> settings = _prefs
+        .getKeys()
+        .fold<Map<String, dynamic>>({}, (Map<String, dynamic> map, String key) {
+      map[key] = _prefs.get(key);
+      return map;
+    });
+    return jsonEncode(settings);
+  }
+
+  Future<void> importSettings(String settings) async {
+    final Map<String, dynamic> settingsMap = jsonDecode(settings);
+    settingsMap.forEach((key, value) {
+      if (value is bool) {
+        _prefs.setBool(key, value);
+      } else if (value is int) {
+        _prefs.setInt(key, value);
+      } else if (value is double) {
+        _prefs.setDouble(key, value);
+      } else if (value is String) {
+        _prefs.setString(key, value);
+      } else if (value is List<dynamic>) {
+        _prefs.setStringList(
+          key,
+          value.map((a) => json.encode(a.toJson())).toList(),
+        );
+      }
+    });
+  }
+
   void resetAllOptions() {
     _prefs.getKeys().where((key) => key.startsWith('patchOption-')).forEach(
       (key) {

lib/ui/views/settings/settings_viewmodel.dart

@@ -222,6 +222,53 @@ class SettingsViewModel extends BaseViewModel {
     notifyListeners();
   }
 
+  Future<void> exportSettings() async {
+    try {
+      final String settings = _managerAPI.exportSettings();
+      final Directory tempDir = await getTemporaryDirectory();
+      final String filePath = '${tempDir.path}/manager_settings.json';
+      final File file = File(filePath);
+      await file.writeAsString(settings);
+      final String? result = await FlutterFileDialog.saveFile(
+        params: SaveFileDialogParams(
+          sourceFilePath: file.path,
+          fileName: 'manager_settings.json',
+          mimeTypesFilter: ['application/json'],
+        ),
+      );
+      if (result != null) {
+        _toast.showBottom(t.settingsView.exportedSettings);
+      }
+    } on Exception catch (e) {
+      if (kDebugMode) {
+        print(e);
+      }
+    }
+  }
+
+  Future<void> importSettings() async {
+    try {
+      final String? result = await FlutterFileDialog.pickFile(
+        params: const OpenFileDialogParams(
+          fileExtensionsFilter: ['json'],
+        ),
+      );
+      if (result != null) {
+        final File inFile = File(result);
+        final String settings = inFile.readAsStringSync();
+        inFile.delete();
+        _managerAPI.importSettings(settings);
+        _toast.showBottom(t.settingsView.importedSettings);
+        _toast.showBottom(t.settingsView.restartAppForChanges);
+      }
+    } on Exception catch (e) {
+      if (kDebugMode) {
+        print(e);
+      }
+      _toast.showBottom(t.settingsView.jsonSelectorErrorMessage);
+    }
+  }
+
   Future<void> exportPatches() async {
     try {
       final File outFile = File(_managerAPI.storedPatchesFile);

lib/ui/widgets/settingsView/settings_export_section.dart

@@ -14,6 +14,30 @@ class SExportSection extends StatelessWidget {
     return SettingsSection(
       title: t.settingsView.exportSectionTitle,
       children: <Widget>[
+        ListTile(
+          contentPadding: const EdgeInsets.symmetric(horizontal: 20.0),
+          title: Text(
+            t.settingsView.exportSettingsLabel,
+            style: const TextStyle(
+              fontSize: 20,
+              fontWeight: FontWeight.w500,
+            ),
+          ),
+          subtitle: Text(t.settingsView.exportSettingsHint),
+          onTap: () => _settingsViewModel.exportSettings(),
+        ),
+        ListTile(
+          contentPadding: const EdgeInsets.symmetric(horizontal: 20.0),
+          title: Text(
+            t.settingsView.importSettingsLabel,
+            style: const TextStyle(
+              fontSize: 20,
+              fontWeight: FontWeight.w500,
+            ),
+          ),
+          subtitle: Text(t.settingsView.importSettingsHint),
+          onTap: () => _settingsViewModel.importSettings(),
+        ),
         ListTile(
           contentPadding: const EdgeInsets.symmetric(horizontal: 20.0),
           title: Text(
@@ -114,7 +138,6 @@ class SExportSection extends StatelessWidget {
           subtitle: Text(t.settingsView.regenerateKeystoreHint),
           onTap: () => _showDeleteKeystoreDialog(context),
         ),
-        // SManageKeystorePasswordUI(),
       ],
     );
   }