Add profile fetch cancel

lib/features/profile/add/add_profile_modal.dart

@@ -76,6 +76,15 @@ class AddProfileModal extends HookConsumerWidget {
                       const LinearProgressIndicator(
                         backgroundColor: Colors.transparent,
                       ),
+                      const Gap(8),
+                      TextButton(
+                        onPressed: () {
+                          ref.invalidate(addProfileProvider);
+                        },
+                        child: Text(
+                          MaterialLocalizations.of(context).cancelButtonLabel,
+                        ),
+                      ),
                     ],
                   ),
                 ),

lib/features/profile/data/profile_repository.dart

@@ -1,5 +1,6 @@
 import 'dart:io';
 
+import 'package:dio/dio.dart';
 import 'package:drift/drift.dart';
 import 'package:fpdart/fpdart.dart';
 import 'package:hiddify/core/database/app_database.dart';
@@ -32,6 +33,7 @@ abstract interface class ProfileRepository {
   TaskEither<ProfileFailure, Unit> addByUrl(
     String url, {
     bool markAsActive = false,
+    CancelToken? cancelToken,
   });
 
   TaskEither<ProfileFailure, Unit> addByContent(
@@ -40,7 +42,10 @@ abstract interface class ProfileRepository {
     bool markAsActive = false,
   });
 
-  TaskEither<ProfileFailure, Unit> add(RemoteProfileEntity baseProfile);
+  TaskEither<ProfileFailure, Unit> add(
+    RemoteProfileEntity baseProfile, {
+    CancelToken? cancelToken,
+  });
 
   TaskEither<ProfileFailure, String> generateConfig(String id);
 
@@ -48,6 +53,7 @@ abstract interface class ProfileRepository {
   TaskEither<ProfileFailure, Unit> updateSubscription(
     RemoteProfileEntity baseProfile, {
     bool patchBaseProfile = false,
+    CancelToken? cancelToken,
   });
 
   TaskEither<ProfileFailure, Unit> patch(ProfileEntity profile);
@@ -127,6 +133,7 @@ class ProfileRepositoryImpl
   TaskEither<ProfileFailure, Unit> addByUrl(
     String url, {
     bool markAsActive = false,
+    CancelToken? cancelToken,
   }) {
     return exceptionHandler(
       () async {
@@ -138,11 +145,14 @@ class ProfileRepositoryImpl
           final baseProfile = markAsActive
               ? existingProfile.copyWith(active: true)
               : existingProfile;
-          return updateSubscription(baseProfile).run();
+          return updateSubscription(
+            baseProfile,
+            cancelToken: cancelToken,
+          ).run();
         }
 
         final profileId = const Uuid().v4();
-        return fetch(url, profileId)
+        return fetch(url, profileId, cancelToken: cancelToken)
             .flatMap(
               (profile) => TaskEither(
                 () async {
@@ -221,10 +231,13 @@ class ProfileRepositoryImpl
   }
 
   @override
-  TaskEither<ProfileFailure, Unit> add(RemoteProfileEntity baseProfile) {
+  TaskEither<ProfileFailure, Unit> add(
+    RemoteProfileEntity baseProfile, {
+    CancelToken? cancelToken,
+  }) {
     return exceptionHandler(
       () async {
-        return fetch(baseProfile.url, baseProfile.id)
+        return fetch(baseProfile.url, baseProfile.id, cancelToken: cancelToken)
             .flatMap(
               (remoteProfile) => TaskEither(() async {
                 await profileDataSource.insert(
@@ -266,13 +279,14 @@ class ProfileRepositoryImpl
   TaskEither<ProfileFailure, Unit> updateSubscription(
     RemoteProfileEntity baseProfile, {
     bool patchBaseProfile = false,
+    CancelToken? cancelToken,
   }) {
     return exceptionHandler(
       () async {
         loggy.debug(
           "updating profile [${baseProfile.name} (${baseProfile.id})]",
         );
-        return fetch(baseProfile.url, baseProfile.id)
+        return fetch(baseProfile.url, baseProfile.id, cancelToken: cancelToken)
             .flatMap(
               (remoteProfile) => TaskEither(
                 () async {
@@ -359,15 +373,20 @@ class ProfileRepositoryImpl
   @visibleForTesting
   TaskEither<ProfileFailure, RemoteProfileEntity> fetch(
     String url,
-    String fileName,
-  ) {
+    String fileName, {
+    CancelToken? cancelToken,
+  }) {
     return TaskEither(
       () async {
         final file = profilePathResolver.file(fileName);
         final tempFile = profilePathResolver.tempFile(fileName);
 
         try {
-          final response = await httpClient.download(url.trim(), tempFile.path);
+          final response = await httpClient.download(
+            url.trim(),
+            tempFile.path,
+            cancelToken: cancelToken,
+          );
           final headers =
               await _populateHeaders(response.headers.map, tempFile.path);
           return await validateConfig(file.path, tempFile.path, false)

lib/features/profile/notifier/profile_notifier.dart

@@ -1,3 +1,4 @@
+import 'package:dio/dio.dart';
 import 'package:fpdart/fpdart.dart';
 import 'package:hiddify/core/localization/translations.dart';
 import 'package:hiddify/core/model/failures.dart';
@@ -20,6 +21,10 @@ class AddProfile extends _$AddProfile with AppLogger {
   @override
   AsyncValue<Unit?> build() {
     ref.disposeDelay(const Duration(minutes: 1));
+    ref.onDispose(() {
+      loggy.debug("disposing");
+      _cancelToken?.cancel();
+    });
     ref.listenSelf(
       (previous, next) {
         final t = ref.read(translationsProvider);
@@ -43,6 +48,7 @@ class AddProfile extends _$AddProfile with AppLogger {
 
   ProfileRepository get _profilesRepo =>
       ref.read(profileRepositoryProvider).requireValue;
+  CancelToken? _cancelToken;
 
   Future<void> add(String rawInput) async {
     if (state.isLoading) return;
@@ -55,7 +61,11 @@ class AddProfile extends _$AddProfile with AppLogger {
         final TaskEither<ProfileFailure, Unit> task;
         if (LinkParser.parse(rawInput) case (final link)?) {
           loggy.debug("adding profile, url: [${link.url}]");
-          task = _profilesRepo.addByUrl(link.url, markAsActive: markAsActive);
+          task = _profilesRepo.addByUrl(
+            link.url,
+            markAsActive: markAsActive,
+            cancelToken: _cancelToken = CancelToken(),
+          );
         } else if (LinkParser.protocol(rawInput) case (final parsed)?) {
           loggy.debug("adding profile, content");
           task = _profilesRepo.addByContent(