WIP

Author: Nikolas Rimikis

lib/src/screens/category/category_screen.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
-import 'package:flutter_cache_manager/flutter_cache_manager.dart';
+import 'package:flutter_cache_manager_dio/flutter_cache_manager_dio.dart';
 import 'package:flutter_spinkit/flutter_spinkit.dart';
 import 'package:flutter_translate/flutter_translate.dart';
 import 'package:nc_cookbook_api/nc_cookbook_api.dart';
@@ -106,7 +106,7 @@ class MainScreen extends StatelessWidget {
             icon: const Icon(Icons.refresh_outlined),
             tooltip: translate('app_bar.refresh'),
             onPressed: () {
-              DefaultCacheManager().emptyCache();
+              DioCacheManager.instance.emptyCache();
               BlocProvider.of<CategoriesBloc>(context)
                   .add(const CategoriesLoaded());
             },
@@ -177,7 +177,7 @@ class CategoryScreen extends StatelessWidget {
 
         return RefreshIndicator(
           onRefresh: () {
-            DefaultCacheManager().emptyCache();
+            DioCacheManager.instance.emptyCache();
             BlocProvider.of<CategoriesBloc>(context)
                 .add(const CategoriesLoaded());
             return Future.value();

lib/src/screens/recipes_list_screen.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
-import 'package:flutter_cache_manager/flutter_cache_manager.dart';
+import 'package:flutter_cache_manager_dio/flutter_cache_manager_dio.dart';
 import 'package:flutter_translate/flutter_translate.dart';
 import 'package:intl/intl.dart';
 import 'package:nc_cookbook_api/nc_cookbook_api.dart';
@@ -34,7 +34,7 @@ class RecipesListScreen extends StatelessWidget {
             icon: const Icon(Icons.refresh_outlined),
             tooltip: translate('app_bar.refresh'),
             onPressed: () {
-              DefaultCacheManager().emptyCache();
+              DioCacheManager.instance.emptyCache();
               BlocProvider.of<RecipesShortBloc>(context)
                   .add(RecipesShortLoaded(category: category));
             },
@@ -43,7 +43,7 @@ class RecipesListScreen extends StatelessWidget {
       ),
       body: RefreshIndicator(
         onRefresh: () {
-          DefaultCacheManager().emptyCache();
+          DioCacheManager.instance.emptyCache();
           BlocProvider.of<RecipesShortBloc>(context)
               .add(RecipesShortLoaded(category: category));
           return Future.value();

lib/src/services/api_provider.dart

@@ -2,11 +2,48 @@ part of 'services.dart';
 
 class ApiProvider {
   factory ApiProvider() => _apiProvider;
-  ApiProvider._() {
+  ApiProvider._();
+  static final ApiProvider _apiProvider = ApiProvider._();
+
+  Future<void> initialize() async {
     final auth = UserRepository().currentAppAuthentication;
 
+    final documentsDir = await getApplicationDocumentsDirectory();
+
+// Global options
+    final options = CacheOptions(
+      // A default store is required for interceptor.
+      store: SembastCacheStore(storePath: documentsDir.path),
+
+      // All subsequent fields are optional.
+
+      // Default.
+      policy: CachePolicy.noCache,
+      // Returns a cached response on error but for statuses 401 & 403.
+      // Also allows to return a cached response on network errors (e.g. offline usage).
+      // Defaults to [null].
+      hitCacheOnErrorExcept: [401, 403],
+      // Overrides any HTTP directive to delete entry past this duration.
+      // Useful only when origin server has no cache config or custom behaviour is desired.
+      // Defaults to [null].
+      maxStale: const Duration(days: 7),
+      // Default. Allows 3 cache sets and ease cleanup.
+      priority: CachePriority.normal,
+      // Default. Body and headers encryption with your own algorithm.
+      cipher: null,
+      // Default. Key builder to retrieve requests.
+      keyBuilder: CacheOptions.defaultCacheKeyBuilder,
+      // Default. Allows to cache POST requests.
+      // Overriding [keyBuilder] is strongly recommended when [true].
+      allowPostMethod: false,
+    );
+
     ncCookbookApi = NcCookbookApi(
       basePathOverride: '${auth.server}/apps/cookbook',
+      interceptors: [
+        BasicAuthInterceptor(),
+        DioCacheInterceptor(options: options),
+      ],
     );
 
     ncCookbookApi.setBasicAuth(
@@ -19,7 +56,6 @@ class ApiProvider {
     miscApi = ncCookbookApi.getMiscApi();
     tagsApi = ncCookbookApi.getTagsApi();
   }
-  static final ApiProvider _apiProvider = ApiProvider._();
 
   late NcCookbookApi ncCookbookApi;
   late RecipesApi recipeApi;

lib/src/services/services.dart

@@ -4,6 +4,8 @@ import 'dart:developer';
 import 'package:dio/dio.dart' as dio;
 import 'package:dio/dio.dart';
 import 'package:dio/io.dart';
+import 'package:dio_cache_interceptor/dio_cache_interceptor.dart';
+import 'package:dio_cache_interceptor_sembast_storage/dio_cache_interceptor_sembast_storage.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
@@ -16,6 +18,7 @@ import 'package:nextcloud_cookbook_flutter/src/models/image_response.dart';
 import 'package:nextcloud_cookbook_flutter/src/models/timer.dart';
 import 'package:nextcloud_cookbook_flutter/src/screens/recipe_import_screen.dart';
 import 'package:nextcloud_cookbook_flutter/src/util/url_validator.dart';
+import 'package:path_provider/path_provider.dart';
 import 'package:timezone/data/latest_10y.dart' as tz;
 import 'package:timezone/timezone.dart' as tz;
 import 'package:xml/xml.dart';

lib/src/services/user_repository.dart

@@ -80,6 +80,7 @@ class UserRepository {
   }
 
   Future<APIVersion> fetchApiVersion() async {
+    await ApiProvider().initialize();
     final response = await ApiProvider().miscApi.version();
 
     return response.data!.apiVersion;

pubspec.yaml

@@ -82,7 +82,14 @@ dependencies:
   timezone: ^0.9.1
 
   cached_network_image: ^3.0.0
-  flutter_cache_manager: ^3.3.0
+  #flutter_cache_manager: ^3.3.0
+  flutter_cache_manager_dio:
+    git:
+      url: https://github.com/josh-burton/flutter_cache_manager_dio.git
+      ref: dio-5.x
+  dio_cache_interceptor_sembast_storage: ^0.1.0
+  dio_cache_interceptor: ^3.4.1
+  path_provider: ^2.0.14
 
   flutter_typeahead: ^4.3.7