feat: add yt engine plugin support

lib/main.dart

@@ -45,8 +45,6 @@ import 'package:spotube/services/kv_store/encrypted_kv_store.dart';
 import 'package:spotube/services/kv_store/kv_store.dart';
 import 'package:spotube/services/logger/logger.dart';
 import 'package:spotube/services/wm_tools/wm_tools.dart';
-import 'package:spotube/src/rust/api/plugin/models/core.dart';
-import 'package:spotube/src/rust/api/plugin/plugin.dart';
 import 'package:spotube/src/rust/frb_generated.dart';
 import 'package:spotube/utils/migrations/sandbox.dart';
 import 'package:spotube/utils/platform.dart';
@@ -178,58 +176,6 @@ class Spotube extends HookConsumerWidget {
         HomeWidget.registerInteractivityCallback(glanceBackgroundCallback);
       }
 
-      start() async {
-        final server = await ref.read(serverProvider.future);
-
-        final plugin = SpotubePlugin();
-        const pluginConfiguration = PluginConfiguration(
-          name: "Spotube Plugin",
-          description: "Spotube Plugin",
-          version: "1.0.0",
-          author: "Spotube",
-          entryPoint: "Plugin",
-          pluginApiVersion: "2.0.0",
-          apis: [PluginApi.localstorage, PluginApi.webview],
-          abilities: [PluginAbility.metadata],
-        );
-        final pluginContext = plugin.createContext(
-          serverEndpointUrl:
-              "http://${server.server.address.host}:${server.port}",
-          serverSecret: ref.read(serverRandomSecretProvider),
-          pluginScript: """
-class AuthEndpoint {
-}
-class CoreEndpoint {
-  async checkUpdate() {
-    console.log(globalThis);
-    const webview = await WebView.create("https://spotube.krtirtho.dev");
-    webview.onUrlChange((url) => {
-      console.log("url_request: ", url);
-      if (url.includes("/about")) {
-        webview.close();
-      }
-    });
-    await webview.open();
-
-    await new Promise((resolve) => setTimeout(resolve, 5000));
-  }
-}
-class Plugin {
-  constructor() {
-    this.auth = new AuthEndpoint();
-    this.core = new CoreEndpoint();
-  }
-}
-""",
-          pluginConfig: pluginConfiguration,
-        );
-
-        await plugin.core.checkUpdate(
-            mpscTx: pluginContext, pluginConfig: pluginConfiguration);
-      }
-
-      start();
-
       return () {
         /// For enabling hot reload for audio player
         if (!kDebugMode) return;

lib/provider/server/router.dart

@@ -3,7 +3,10 @@ import 'package:shelf/shelf.dart';
 import 'package:shelf_router/shelf_router.dart';
 import 'package:spotube/provider/server/routes/connect.dart';
 import 'package:spotube/provider/server/routes/playback.dart';
+import 'package:spotube/provider/server/routes/plugin_apis/form.dart';
+import 'package:spotube/provider/server/routes/plugin_apis/path_provider.dart';
 import 'package:spotube/provider/server/routes/plugin_apis/webview.dart';
+import 'package:spotube/provider/server/routes/plugin_apis/yt_engine.dart';
 
 Handler pluginApiAuthMiddleware(Handler handler) {
   return (Request request) {
@@ -20,6 +23,8 @@ final serverRouterProvider = Provider((ref) {
   final playbackRoutes = ref.watch(serverPlaybackRoutesProvider);
   final connectRoutes = ref.watch(serverConnectRoutesProvider);
   final webviewRoutes = ref.watch(serverWebviewRoutesProvider);
+  final formRoutes = ref.watch(serverFormRoutesProvider);
+  final ytEngineRoutes = ref.watch(serverYTEngineRoutesProvider);
 
   final router = Router();
 
@@ -52,6 +57,27 @@ final serverRouterProvider = Provider((ref) {
     "/plugin-api/webview/cookies",
     pluginApiAuthMiddleware(webviewRoutes.postGetWebviewCookies),
   );
+  router.post(
+    "/plugin-api/form/show",
+    pluginApiAuthMiddleware(formRoutes.showForm),
+  );
+  router.get(
+    "/plugin/localstorage/directories",
+    pluginApiAuthMiddleware(ServerPathProviderRoutes.getDirectories),
+  );
+
+  router.get(
+    "/plugin-api/yt-engine/search",
+    pluginApiAuthMiddleware(ytEngineRoutes.search),
+  );
+  router.get(
+    "/plugin-api/yt-engine/video",
+    pluginApiAuthMiddleware(ytEngineRoutes.getVideo),
+  );
+  router.get(
+    "/plugin-api/yt-engine/stream-manifest",
+    pluginApiAuthMiddleware(ytEngineRoutes.streamManifest),
+  );
 
   router.all("/ws", connectRoutes.websocket);
 

lib/provider/server/routes/plugin_apis/form.dart

@@ -0,0 +1,30 @@
+import 'dart:convert';
+
+import 'package:auto_route/auto_route.dart';
+import 'package:riverpod/riverpod.dart';
+import 'package:shelf/shelf.dart';
+import 'package:spotube/collections/routes.dart';
+import 'package:spotube/collections/routes.gr.dart';
+import 'package:spotube/models/metadata/metadata.dart';
+
+class ServerFormRoutes {
+  Future<Response> showForm(Request request) async {
+    final body = jsonDecode(await request.readAsString());
+    final res = await rootNavigatorKey.currentContext!.router
+        .push<List<Map<String, dynamic>>?>(
+      SettingsMetadataProviderFormRoute(
+        title: body["title"],
+        fields: (body["fields"] as List)
+            .map((e) => MetadataFormFieldObject.fromJson(e))
+            .toList(),
+      ),
+    );
+
+    return Response.ok(
+      jsonEncode(res),
+      headers: {'Content-Type': 'application/json'},
+    );
+  }
+}
+
+final serverFormRoutesProvider = Provider((ref) => ServerFormRoutes());

lib/provider/server/routes/plugin_apis/path_provider.dart

@@ -0,0 +1,29 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:path_provider/path_provider.dart' as pp;
+import 'package:shelf/shelf.dart';
+
+class ServerPathProviderRoutes {
+  static Future<Response> getDirectories(Request request) async {
+    final directories = <String, Directory?>{
+      'temporary': await Future<Directory?>.value(pp.getTemporaryDirectory())
+          .catchError((e) => null),
+      'applicationDocuments':
+          await Future<Directory?>.value(pp.getApplicationDocumentsDirectory())
+              .catchError((e) => null),
+      'applicationSupport':
+          await Future<Directory?>.value(pp.getApplicationSupportDirectory())
+              .catchError((e) => null),
+      'library': await Future<Directory?>.value(pp.getLibraryDirectory())
+          .catchError((e) => null),
+      'externalStorage':
+          await pp.getExternalStorageDirectory().catchError((e) => null),
+      'downloads': await pp.getDownloadsDirectory().catchError((e) => null),
+    }.map((key, value) => MapEntry(key, value?.path));
+    return Response.ok(
+      jsonEncode(directories),
+      headers: {'Content-Type': 'application/json'},
+    );
+  }
+}

lib/provider/server/routes/plugin_apis/webview.dart

@@ -1,16 +1,38 @@
 import 'dart:async';
 import 'dart:convert';
+import 'dart:math';
+import 'dart:typed_data';
 
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:shadcn_flutter/shadcn_flutter.dart';
 import 'package:shelf/shelf.dart';
 import 'package:shelf_router/shelf_router.dart';
+import 'package:spotube/provider/server/server.dart';
 import 'package:spotube/src/plugin_api/webview/webview.dart';
 import 'package:async/async.dart';
+import 'package:encrypt/encrypt.dart' as encrypt;
 
 class ServerWebviewRoutes {
+  final Ref ref;
+  ServerWebviewRoutes({required this.ref});
+
   final Map<String, Webview> _webviews = {};
 
+  String _encryptCookies(dynamic cookies, String secret) {
+    final keyBytes = base64.decode(secret);
+    final key = encrypt.Key(keyBytes);
+    final ivBytes = List<int>.generate(16, (_) => Random.secure().nextInt(256));
+    final iv = encrypt.IV(Uint8List.fromList(ivBytes));
+
+    final encrypter = encrypt.Encrypter(
+      encrypt.AES(key, mode: encrypt.AESMode.cbc, padding: 'PKCS7'),
+    );
+
+    final encrypted = encrypter.encrypt(jsonEncode(cookies), iv: iv);
+    final combined = iv.bytes + encrypted.bytes;
+    return base64.encode(combined);
+  }
+
   Future<Response> postCreateWebview(Request request) async {
     final payload = jsonDecode(await request.readAsString());
     final uri = Uri.parse(payload['url'] as String);
@@ -105,6 +127,8 @@ class ServerWebviewRoutes {
   }
 
   Future<Response> postGetWebviewCookies(Request request) async {
+    final secret = ref.read(serverRandomSecretProvider);
+
     final body = jsonDecode(await request.readAsString());
     final uid = body['uid'] as String;
     final url = body['url'] as String;
@@ -114,8 +138,9 @@ class ServerWebviewRoutes {
       return Response.notFound('Webview with uid $uid not found');
     }
     final cookies = await webview.getCookies(url);
+    final encryptedCookies = _encryptCookies(cookies, secret);
     return Response.ok(
-      jsonEncode(cookies),
+      jsonEncode({'data': encryptedCookies}),
       encoding: utf8,
       headers: {
         'Content-Type': 'application/json',
@@ -131,4 +156,5 @@ class ServerWebviewRoutes {
   }
 }
 
-final serverWebviewRoutesProvider = Provider((ref) => ServerWebviewRoutes());
+final serverWebviewRoutesProvider =
+    Provider((ref) => ServerWebviewRoutes(ref: ref));

lib/provider/server/routes/plugin_apis/yt_engine.dart

@@ -0,0 +1,114 @@
+import 'dart:convert';
+
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:shelf/shelf.dart';
+import 'package:spotube/provider/youtube_engine/youtube_engine.dart';
+import 'package:spotube/services/youtube_engine/youtube_engine.dart';
+
+class ServerYTEngineRoutes {
+  final Ref ref;
+  ServerYTEngineRoutes({required this.ref});
+  YouTubeEngine get youtubeEngine => ref.read(youtubeEngineProvider);
+
+  Future<Response> search(Request request) async {
+    final query = request.url.queryParameters["query"];
+
+    if (query == null || query.isEmpty) {
+      return Response.badRequest(
+        body: 'Query parameter "query" is required',
+      );
+    }
+
+    final result = await youtubeEngine.searchVideos(query);
+    final mappedResult = result
+        .map((video) => {
+              'id': video.id.value,
+              'title': video.title,
+              'author': video.author,
+              'duration': video.duration?.inSeconds,
+              'description': video.description,
+              'uploadDate': video.uploadDate?.toIso8601String(),
+              'viewCount': video.engagement.viewCount,
+              'likeCount': video.engagement.likeCount,
+              'isLive': video.isLive,
+            })
+        .toList();
+
+    return Response.ok(
+      jsonEncode(mappedResult),
+      encoding: utf8,
+      headers: {
+        'Content-Type': 'application/json',
+      },
+    );
+  }
+
+  Future<Response> getVideo(Request request) async {
+    final videoId = request.url.queryParameters["videoId"];
+
+    if (videoId == null || videoId.isEmpty) {
+      return Response.badRequest(
+        body: 'Query parameter "videoId" is required',
+      );
+    }
+
+    final video = await youtubeEngine.getVideo(videoId);
+    final res = {
+      'id': video.id.value,
+      'title': video.title,
+      'author': video.author,
+      'duration': video.duration?.inSeconds,
+      'description': video.description,
+      'uploadDate': video.uploadDate?.toIso8601String(),
+      'viewCount': video.engagement.viewCount,
+      'likeCount': video.engagement.likeCount,
+      'isLive': video.isLive,
+    };
+
+    return Response.ok(
+      jsonEncode(res),
+      encoding: utf8,
+      headers: {
+        'Content-Type': 'application/json',
+      },
+    );
+  }
+
+  Future<Response> streamManifest(Request request) async {
+    final videoId = request.url.queryParameters["videoId"];
+
+    if (videoId == null || videoId.isEmpty) {
+      return Response.badRequest(
+        body: 'Query parameter "videoId" is required',
+      );
+    }
+
+    final streamManifest =
+        await youtubeEngine.getStreamManifest(videoId).then((manifest) {
+      final streams = manifest.audioOnly
+          .map(
+            (stream) => {
+              'url': stream.url.toString(),
+              'quality': stream.qualityLabel,
+              'bitrate': stream.bitrate.bitsPerSecond,
+              'container': stream.container.name,
+              'videoId': stream.videoId,
+            },
+          )
+          .toList();
+      return streams;
+    });
+
+    return Response.ok(
+      jsonEncode(streamManifest),
+      encoding: utf8,
+      headers: {
+        'Content-Type': 'application/json',
+      },
+    );
+  }
+}
+
+final serverYTEngineRoutesProvider = Provider<ServerYTEngineRoutes>(
+  (ref) => ServerYTEngineRoutes(ref: ref),
+);

lib/provider/server/server.dart

@@ -15,7 +15,7 @@ final serverRandomSecretProvider = Provider<String>(
   (ref) {
     final random = Random.secure();
     final values = List<int>.generate(16, (i) => random.nextInt(256));
-    return base64Url.encode(values);
+    return base64.encode(values);
   },
 );
 final serverProvider = FutureProvider(

lib/provider/youtube_engine/youtube_engine.dart

@@ -2,10 +2,11 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:spotube/models/database/database.dart';
 import 'package:spotube/provider/user_preferences/user_preferences_provider.dart';
 import 'package:spotube/services/youtube_engine/newpipe_engine.dart';
+import 'package:spotube/services/youtube_engine/youtube_engine.dart';
 import 'package:spotube/services/youtube_engine/youtube_explode_engine.dart';
 import 'package:spotube/services/youtube_engine/yt_dlp_engine.dart';
 
-final youtubeEngineProvider = Provider((ref) {
+final youtubeEngineProvider = Provider<YouTubeEngine>((ref) {
   final engineMode = ref.watch(
     userPreferencesProvider.select((value) => value.youtubeClientEngine),
   );

pubspec.lock

@@ -82,7 +82,7 @@ packages:
     source: hosted
     version: "1.6.5"
   async:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: async
       sha256: "758e6d74e971c3e5aceb4110bfd6698efc7f501675bcfe0c775459a8140750eb"

pubspec.yaml

@@ -162,6 +162,7 @@ dependencies:
   flutter_rust_bridge: 2.11.1
   json_annotation: ^4.9.0
   random_user_agents: ^1.0.18
+  async: ^2.13.0
 
 dev_dependencies:
   build_runner: ^2.4.13

rust/Cargo.lock

@@ -364,6 +364,16 @@ dependencies = [
  "windows-link 0.2.1",
 ]
 
+[[package]]
+name = "chrono-tz"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a6139a8597ed92cf816dfb33f5dd6cf0bb93a6adc938f11039f371bc5bcd26c3"
+dependencies = [
+ "chrono",
+ "phf 0.12.1",
+]
+
 [[package]]
 name = "cipher"
 version = "0.5.0-rc.2"
@@ -404,6 +414,19 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "confy"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8807c397789cbe02bbdb1a27ea5f345584132808697b2a3f957c829829ee4814"
+dependencies = [
+ "etcetera",
+ "lazy_static",
+ "serde",
+ "thiserror",
+ "toml",
+]
+
 [[package]]
 name = "console_error_panic_hook"
 version = "0.1.7"
@@ -721,6 +744,17 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "etcetera"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26c7b13d0780cb82722fd59f6f57f925e143427e4a75313a6c77243bf5326ae6"
+dependencies = [
+ "cfg-if",
+ "home",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "event-listener"
 version = "5.4.0"
@@ -1558,9 +1592,9 @@ dependencies = [
 
 [[package]]
 name = "lazy_static"
-version = "1.4.0"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
@@ -1788,7 +1822,7 @@ dependencies = [
  "hex-simd",
  "llrt_build",
  "memchr",
- "phf",
+ "phf 0.13.1",
 ]
 
 [[package]]
@@ -2432,6 +2466,15 @@ version = "2.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b4f627cb1b25917193a259e49bdad08f671f8d9708acfd5fe0a8c1455d87220"
 
+[[package]]
+name = "phf"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "913273894cec178f401a31ec4b656318d95473527be05c0752cc41cdc32be8b7"
+dependencies = [
+ "phf_shared 0.12.1",
+]
+
 [[package]]
 name = "phf"
 version = "0.13.1"
@@ -2439,7 +2482,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c1562dc717473dbaa4c1f85a36410e03c047b2e7df7f45ee938fbef64ae7fadf"
 dependencies = [
  "phf_macros",
- "phf_shared",
+ "phf_shared 0.13.1",
 ]
 
 [[package]]
@@ -2449,7 +2492,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "135ace3a761e564ec88c03a77317a7c6b80bb7f7135ef2544dbe054243b89737"
 dependencies = [
  "fastrand",
- "phf_shared",
+ "phf_shared 0.13.1",
 ]
 
 [[package]]
@@ -2459,12 +2502,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "812f032b54b1e759ccd5f8b6677695d5268c588701effba24601f6932f8269ef"
 dependencies = [
  "phf_generator",
- "phf_shared",
+ "phf_shared 0.13.1",
  "proc-macro2",
  "quote",
  "syn",
 ]
 
+[[package]]
+name = "phf_shared"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06005508882fb681fd97892ecff4b7fd0fee13ef1aa569f8695dae7ab9099981"
+dependencies = [
+ "siphasher",
+]
+
 [[package]]
 name = "phf_shared"
 version = "0.13.1"
@@ -2898,10 +2950,15 @@ name = "rust_lib_spotube"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "base64 0.22.1",
+ "chrono-tz",
+ "confy",
  "eventsource-client",
  "flutter_rust_bridge",
  "heck",
+ "iana-time-zone",
  "llrt_modules",
+ "openssl",
  "reqwest",
  "rquickjs",
  "serde",
@@ -3163,6 +3220,15 @@ dependencies = [
  "serde_core",
 ]
 
+[[package]]
+name = "serde_spanned"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e24345aa0fe688594e73770a5f6d1b216508b4f93484c0026d521acd30134392"
+dependencies = [
+ "serde_core",
+]
+
 [[package]]
 name = "serde_urlencoded"
 version = "0.7.1"
@@ -3373,6 +3439,26 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "thiserror"
+version = "2.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f63587ca0f12b72a0600bcba1d40081f830876000bb46dd2337a3051618f4fc8"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "2.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ff15c8ecd7de3849db632e14d18d2571fa09dfc5ed93479bc4485c7a517c913"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "threadpool"
 version = "1.8.1"
@@ -3474,6 +3560,21 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "toml"
+version = "0.9.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0dc8b1fb61449e27716ec0e1bdf0f6b8f3e8f6b05391e8497b8b6d7804ea6d8"
+dependencies = [
+ "indexmap",
+ "serde_core",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_parser",
+ "toml_writer",
+ "winnow",
+]
+
 [[package]]
 name = "toml_datetime"
 version = "0.7.3"
@@ -3504,6 +3605,12 @@ dependencies = [
  "winnow",
 ]
 
+[[package]]
+name = "toml_writer"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df8b2b54733674ad286d16267dcfc7a71ed5c776e4ac7aa3c3e2561f7c637bf2"
+
 [[package]]
 name = "tower"
 version = "0.5.2"
@@ -3884,6 +3991,15 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
+dependencies = [
+ "windows-targets 0.52.6",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.60.2"

rust/Cargo.toml

@@ -21,6 +21,11 @@ heck = "0.5.0"
 llrt_modules = { git = "https://github.com/awslabs/llrt.git", rev = "7d749dd18cf26a2e51119094c3b945975ae57bd4", features = ["abort", "buffer", "console", "crypto", "events", "exceptions", "fetch", "navigator", "url", "timers"] }
 eventsource-client = "0.15.1"
 reqwest = { version = "0.12", features = ["json"] }
+confy = "2.0.0"
+chrono-tz = "0.10"
+iana-time-zone = "0.1"
+base64 = "0.22.1"
+openssl = "0.10.75"
 
 [patch."https://github.com/DelSkayn/rquickjs"]
 rquickjs = "0.10.0"

rust/src/api/plugin/plugin.rs

@@ -11,7 +11,8 @@ use crate::api::plugin::senders::{
     PluginTrackSender, PluginUserSender,
 };
 use crate::frb_generated::StreamSink;
-use crate::internal::apis::webview;
+use crate::internal::apis;
+use crate::internal::apis::{form, get_platform_directories, timezone, webview, yt_engine};
 use anyhow::anyhow;
 use flutter_rust_bridge::{frb, Rust2DartSendError};
 use llrt_modules::module_builder::ModuleBuilder;
@@ -35,6 +36,7 @@ pub struct OpaqueSender {
 async fn create_context(
     server_endpoint_url: String,
     server_secret: String,
+    plugin_slug: String,
 ) -> anyhow::Result<(AsyncContext, AsyncRuntime)> {
     let runtime = AsyncRuntime::new().expect("Unable to create async runtime");
 
@@ -51,7 +53,11 @@ async fn create_context(
         .with_global(navigator::init)
         .with_global(url::init)
         .with_global(timers::init)
-        .with_global(util::init);
+        .with_global(util::init)
+        .with_global(form::init)
+        .with_global(webview::init)
+        .with_global(yt_engine::init)
+        .with_global(timezone::init);
 
     let (module_resolver, module_loader, global_attachment) = module_builder.build();
     runtime
@@ -62,13 +68,19 @@ async fn create_context(
         .await
         .expect("Unable to create async context");
 
+    let directories =
+        get_platform_directories(server_endpoint_url.clone(), server_secret.clone()).await?;
+    let local_storage_dir = directories
+        .application_support
+        .ok_or_else(|| anyhow!("Application support directory not found"))?;
+
     async_with!(context => |ctx| {
+        apis::init(&ctx, server_endpoint_url, server_secret).catch(&ctx).map_err(|e| anyhow!("Failed to initialize APIs: {}", e))?;
+        apis::local_storage::init(&ctx, plugin_slug, local_storage_dir).catch(&ctx).map_err(|e| anyhow!("Failed to initialize LocalStorage API: {}", e))?;
         global_attachment.attach(&ctx).catch(&ctx).map_err(|e| anyhow!("Failed to attach global modules: {}", e))?;
-        webview::init(&ctx, server_endpoint_url, server_secret).catch(&ctx).map_err(|e| anyhow!("Failed to initialize WebView API: {}", e))?;
         anyhow::Ok(())
     })
-    .await
+    .await?;
-    .map_err(|e| anyhow!("Failed to register globals: {}", e))?;
 
     Ok((context, runtime))
 }
@@ -155,7 +167,7 @@ impl SpotubePlugin {
         Ok(())
     }
 
-    // #[frb(sync)]
+    #[frb(sync)]
     pub fn create_context(
         &self,
         plugin_script: String,
@@ -175,6 +187,7 @@ impl SpotubePlugin {
                 let (ctx, _) = create_context(
                     server_endpoint_url,
                     server_secret,
+                    plugin_config.slug(),
                 ).await?;
 
                 let injection = format!(

rust/src/internal/apis/event_source.rs

@@ -1,167 +0,0 @@
-use eventsource_client::{ClientBuilder, Client, SSE};
-use flutter_rust_bridge::for_generated::futures::StreamExt;
-use rquickjs::function::Func;
-use rquickjs::{CatchResultExt, Ctx, Error as JsError, Function, Object, Value};
-use tokio::sync::mpsc;
-
-fn connect_sse<'js>(ctx: Ctx<'js>, config: Object<'js>) -> rquickjs::Result<Object<'js>> {
-    let url: String = config.get("url")?;
-    let on_connecting: Function = config.get("onConnecting")?;
-    let on_open: Function = config.get("onOpen")?;
-    let on_message: Function = config.get("onMessage")?;
-    let on_error: Function = config.get("onError")?;
-
-    let (close_tx, mut close_rx) = mpsc::unbounded_channel::<()>();
-
-    if let Err(e) = on_connecting.call::<_, ()>(()).catch(&ctx) {
-        eprintln!("Error in onConnecting callback: {}", e);
-    }
-
-    // Spawn the SSE background task using Ctx::spawn
-    let _ = ctx.clone().spawn(async move {
-        let client = ClientBuilder::for_url(&url);
-        if let Err(err) = client {
-            eprintln!("Error in ClientBuilder::for_url: {}", err);
-            return;
-        }
-
-        let client = client.unwrap().build();
-
-        // Notify "open"
-        if let Err(e) = on_open.call::<(), ()>(()) {
-            eprintln!("Error in onOpen callback: {}", e);
-        }
-
-        // Now listen to SSE events OR close signal
-        let mut stream = Box::pin(client.stream());
-
-        loop {
-            tokio::select! {
-                // Check for close signal first
-                _ = close_rx.recv() => {
-                    // Close requested — drop stream and exit
-                    drop(stream);
-                    break;
-                }
-
-                event = stream.next() => {
-                    match event {
-                        Some(Ok(SSE::Event(msg))) => {
-                            let data = msg.data.clone();
-                            if let Err(e) = on_message.call::<_, ()>((data,)) {
-                                eprintln!("Error in onMessage callback: {}", e);
-                            }
-                        }
-
-                        Some(Ok(SSE::Connected(details))) => {
-                            println!("SSE Connected: {:?}", details);
-                        }
-
-                        Some(Ok(SSE::Comment(comment))) => {
-                            println!("SSE Comment: {}", comment);
-                        }
-
-                        Some(Err(err)) => {
-                            if let Err(e) = on_error.call::<_, ()>((err.to_string(),)) {
-                                eprintln!("Error in onError callback: {}", e);
-                            }
-                            break;
-                        }
-
-                        None => {
-                            println!("SSE Stream ended gracefully");
-                            break;
-                        }
-                    }
-                }
-            }
-        }
-    });
-    // Create the close function that sends signal via channel
-    let close_fn = Function::new(ctx.clone(), move |_ctx: Ctx<'_>| {
-        // Send close signal — ignore errors if receiver is gone
-        let _ = close_tx.send(());
-        Ok::<(), JsError>(())
-    })?;
-
-    // Return { close: () => void }
-    let result = Object::new(ctx)?;
-    result.set("close", close_fn)?;
-    Ok(result)
-}
-
-pub fn init(ctx: &Ctx) -> rquickjs::Result<()> {
-    let globals = ctx.globals();
-
-    globals.set("__connectSSE", Func::new(connect_sse))?;
-
-    ctx.eval::<Value, _>(
-        r#"
-    globalThis.EventSource = class EventSource {
-        #listeners = {};
-
-        constructor(url, options) {
-            this.url = url;
-            this.options = options;
-
-            this.close = __connectSSE({
-                url: this.url,
-                onConnecting: this.#onConnecting.bind(this),
-                onOpen: this.#onOpen.bind(this),
-                onMessage: this.#onMessage.bind(this),
-                onError: this.#onError.bind(this),
-            }).close;
-        }
-
-        #onMessage(data) {
-            console.log("Received message:", data);
-            if (this.onmessage) {
-                this.onmessage(data);
-            }
-
-            const eventLines = data.split('\n');
-
-            if(eventLines.length === 0) return;
-            const eventNameChunks = eventLines[0].split("event:");
-
-            if(eventNameChunks.length === 0) return;
-            const eventName = eventNameChunks[1].trim();
-
-            if (!this.#listeners[eventName]) return;
-            const eventDataChunks = eventLines[1].split("data:");
-
-            if(eventDataChunks.length === 0) return;
-            const eventData = eventDataChunks[1].trim();
-
-            if (!eventData) return;
-            this.#listeners[eventName](eventData);
-        }
-
-        #onConnecting() {
-            this.readyState = 0;
-        }
-
-        #onOpen() {
-            this.readyState = 1;
-            if (this.onopen) {
-                this.onopen();
-            }
-        }
-
-        #onError(error) {
-            this.readyState = 2;
-            if (this.onerror) {
-                this.onerror(error);
-            }
-        }
-
-        addEventListener(event, callback) {
-            this.#listeners[event] ??= [];
-            this.#listeners[event].push(callback);
-        }
-    }
-    "#,
-    )?;
-
-    Ok(())
-}

rust/src/internal/apis/form.rs

@@ -0,0 +1,25 @@
+use rquickjs::{Ctx, Value};
+
+pub fn init(ctx: &Ctx) -> rquickjs::Result<()> {
+    ctx.eval::<Value, _>(
+        r#"
+    globalThis.SpotubeForm = class SpotubeForm {
+        static async show(title, fields) {
+            return await fetch(
+                `${__serverUrl}/plugin-api/form/show`,
+                {
+                    method: 'POST',
+                    headers: {
+                        'Content-Type': 'application/json',
+                        'X-Plugin-Secret': __serverSecret,
+                    },
+                    body: JSON.stringify({ title, fields }),
+                }
+            ).then(res=>res.json());
+        }
+    }
+    "#,
+    )?;
+
+    Ok(())
+}

rust/src/internal/apis/local_storage.rs

@@ -0,0 +1,115 @@
+use rquickjs::class::Trace;
+use rquickjs::{Class, Ctx, JsLifetime, Value};
+use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
+use std::path::Path;
+use std::sync::{Arc, Mutex};
+
+/// All values stored as strings; we convert at the edges.
+#[derive(Debug, Default, Serialize, Deserialize, Clone)]
+struct LocalStorageConfig {
+    map: HashMap<String, String>,
+}
+
+/// LocalStorage backed by `confy`.
+#[derive(Clone, JsLifetime, Trace)]
+#[rquickjs::class]
+pub struct LocalStorage {
+    #[qjs(skip_trace)]
+    prefix: String,
+    #[qjs(skip_trace)]
+    path: String,
+    #[qjs(skip_trace)]
+    state: Arc<Mutex<LocalStorageConfig>>,
+}
+
+fn merge_prefix(prefix: String, key: String) -> String {
+    format!("{}->{}", prefix, key)
+}
+
+#[rquickjs::methods]
+impl LocalStorage {
+    #[qjs(constructor)]
+    pub fn new(prefix: String, directory: String) -> rquickjs::Result<Self> {
+        let path = Path::new(&directory).join("plugin_configs.toml");
+        let cfg: LocalStorageConfig = confy::load_path(path.clone()).map_err(|e| {
+            rquickjs::Error::new_from_js_message(
+                "local_storage",
+                "PersistenceError",
+                &e.to_string(),
+            )
+        })?;
+        Ok(Self {
+            prefix,
+            path: path.to_string_lossy().to_string(),
+            state: Arc::new(Mutex::new(cfg)),
+        })
+    }
+
+    /// Persist current state to disk.
+    fn persist(&self) -> rquickjs::Result<()> {
+        let cfg = self.state.lock().unwrap().clone();
+        confy::store_path(self.path.clone(), cfg).map_err(|e| {
+            rquickjs::Error::new_from_js_message(
+                "local_storage",
+                "PersistenceError",
+                &e.to_string(),
+            )
+        })?;
+        Ok(())
+    }
+
+    #[qjs(rename = "setItem")]
+    pub fn set_item(&self, key: String, value: String) -> rquickjs::Result<()> {
+        {
+            let mut state = self.state.lock().unwrap();
+            state
+                .map
+                .insert(merge_prefix(self.prefix.clone(), key), value);
+        }
+        self.persist()
+    }
+
+    #[qjs(rename = "getItem")]
+    pub fn get_item(&self, key: String) -> rquickjs::Result<Option<String>> {
+        let state = self.state.lock().map_err(|e| {
+            rquickjs::Error::new_from_js_message("local_storage", "LockError", &e.to_string())
+        })?;
+        let key = merge_prefix(self.prefix.clone(), key.clone());
+        Ok(state.map.get(key.as_str()).cloned())
+    }
+
+    #[qjs(rename = "removeItem")]
+    pub fn remove_item(&self, key: String) -> rquickjs::Result<()> {
+        {
+            let mut state = self.state.lock().map_err(|e| {
+                rquickjs::Error::new_from_js_message("local_storage", "LockError", &e.to_string())
+            })?;
+            state
+                .map
+                .remove(merge_prefix(self.prefix.clone(), key).as_str());
+        }
+        self.persist()
+    }
+
+    pub fn clear(&self) -> rquickjs::Result<()> {
+        {
+            let mut state = self.state.lock().map_err(|e| {
+                rquickjs::Error::new_from_js_message("local_storage", "LockError", &e.to_string())
+            })?;
+            state.map.clear();
+        }
+        self.persist()
+    }
+}
+
+pub fn init(ctx: &Ctx, prefix: String, directory: String) -> rquickjs::Result<()> {
+    let global = ctx.globals();
+    Class::<LocalStorage>::define(&global)?;
+
+    ctx.eval::<Value, _>(format!(
+        "globalThis.localStorage = new LocalStorage('{}', '{}');",
+        prefix, directory
+    ))?;
+    Ok(())
+}

rust/src/internal/apis/mod.rs

@@ -1,2 +1,40 @@
-pub mod event_source;
+use rquickjs::Ctx;
+use serde::{Deserialize, Serialize};
+
+pub mod form;
+pub mod local_storage;
 pub mod webview;
+pub mod timezone;
+pub mod yt_engine;
+
+pub fn init(ctx: &Ctx, endpoint_url: String, secret: String) -> rquickjs::Result<()> {
+    ctx.globals().set("__serverUrl", endpoint_url)?;
+    ctx.globals().set("__serverSecret", secret)?;
+
+    Ok(())
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+#[serde(rename_all = "camelCase")]
+pub struct DirectoriesResponse {
+    pub temporary: Option<String>,
+    pub application_documents: Option<String>,
+    pub application_support: Option<String>,
+    pub library: Option<String>,
+    pub external_storage: Option<String>,
+    pub downloads: Option<String>,
+}
+
+pub async fn get_platform_directories(
+    server_url: String,
+    server_secret: String,
+) -> anyhow::Result<DirectoriesResponse> {
+    let client = reqwest::Client::new();
+    Ok(client
+        .get(format!("{}/plugin/localstorage/directories", server_url).as_str())
+        .header("X-Plugin-Secret", server_secret.as_str())
+        .send()
+        .await?
+        .json::<DirectoriesResponse>()
+        .await?)
+}

rust/src/internal/apis/timezone.rs

@@ -0,0 +1,27 @@
+use rquickjs::prelude::Func;
+use rquickjs::{Class, Ctx, Object};
+
+pub fn get_local_timezone() -> rquickjs::Result<String> {
+    let timezone = iana_time_zone::get_timezone()
+        .map_err(|e| rquickjs::Error::new_from_js_message("Timezone", "Error", &e.to_string()))?;
+    Ok(timezone)
+}
+
+pub fn get_available_timezones() -> rquickjs::Result<Vec<String>> {
+    let timezones: Vec<String> = chrono_tz::TZ_VARIANTS
+        .iter()
+        .map(|tz| tz.name().to_string())
+        .collect();
+    Ok(timezones)
+}
+
+pub fn init(ctx: &Ctx) -> rquickjs::Result<()> {
+    let globals = ctx.globals();
+    let timezone_obj = Object::new(ctx.clone())?;
+    timezone_obj.set("getLocalTimezone", Func::new(get_local_timezone))?;
+    timezone_obj.set("getAvailableTimezones", Func::new(get_available_timezones))?;
+
+    globals.set("Timezone", timezone_obj)?;
+
+    Ok(())
+}

rust/src/internal/apis/webview.rs

@@ -1,6 +1,8 @@
+use base64::{engine::general_purpose::STANDARD, Engine as _};
 use eventsource_client::{Client as EventSourceClient, ClientBuilder};
 use flutter_rust_bridge::for_generated::futures::StreamExt;
-use rquickjs::{class::Trace, Class, Ctx, Function, JsLifetime};
+use openssl::symm::{decrypt, Cipher};
+use rquickjs::{class::Trace, CatchResultExt, Class, Ctx, Function, JsLifetime, Value};
 use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 
@@ -52,8 +54,8 @@ impl<'js> WebView<'js> {
 
     #[qjs(static)]
     pub async fn create(ctx: Ctx<'js>, url: String) -> rquickjs::Result<Class<'js, WebView<'js>>> {
-        let endpoint_url: String = ctx.globals().get("__webviewUrl").unwrap_or_default();
+        let endpoint_url: String = ctx.globals().get("__serverUrl").unwrap_or_default();
-        let secret: String = ctx.globals().get("__webviewSecret").unwrap_or_default();
+        let secret: String = ctx.globals().get("__serverSecret").unwrap_or_default();
 
         let client = reqwest::Client::new();
         let endpoint = format!("{}/plugin-api/webview/create", endpoint_url.clone());
@@ -78,7 +80,7 @@ impl<'js> WebView<'js> {
         Class::instance(ctx, webview)
     }
 
-    pub async fn open(&self) -> rquickjs::Result<()> {
+    pub async fn open(&self, ctx: Ctx<'js>) -> rquickjs::Result<()> {
         let client = reqwest::Client::new();
         let endpoint = format!("{}/plugin-api/webview/open", self.endpoint_url);
 
@@ -95,12 +97,13 @@ impl<'js> WebView<'js> {
                 rquickjs::Error::new_from_js_message("reqwest", "Error", &e.to_string())
             })?;
 
-        self.url_change_task().await;
+        self.url_change_task(ctx).await;
 
         Ok(())
     }
 
-    pub async fn cookies(&self, ctx: Ctx<'js>) -> rquickjs::Result<rquickjs::Value<'js>> {
+    pub async fn cookies(&self, ctx: Ctx<'js>) -> rquickjs::Result<Value<'js>> {
+        let secret: String = ctx.globals().get("__serverSecret").unwrap_or_default();
         let client = reqwest::Client::new();
         let endpoint = format!("{}/plugin-api/webview/cookies", self.endpoint_url);
 
@@ -122,7 +125,36 @@ impl<'js> WebView<'js> {
             rquickjs::Error::new_from_js_message("reqwest", "Error", &e.to_string())
         })?;
 
-        let value = ctx.json_parse(data.to_string())?;
+        let enc = data.get("data").and_then(|v| v.as_str()).ok_or_else(|| {
+            rquickjs::Error::new_from_js_message("cookies", "Error", "missing encrypted data")
+        })?;
+
+        let combined = STANDARD.decode(enc.trim()).map_err(|e| {
+            rquickjs::Error::new_from_js_message("cookies", "Error", &format!("b64 decode: {}", e))
+        })?;
+
+        if combined.len() < 16 {
+            return Err(rquickjs::Error::new_from_js_message(
+                "cookies",
+                "Error",
+                "invalid payload (too short)",
+            ));
+        }
+
+        let (iv, cipher_bytes) = combined.split_at(16);
+        let key = STANDARD.decode(secret.trim()).map_err(|e| {
+            rquickjs::Error::new_from_js_message("cookies", "Error", &format!("key decode: {}", e))
+        })?;
+
+        let plain = decrypt(Cipher::aes_128_cbc(), &key, Some(iv), cipher_bytes).map_err(|e| {
+            rquickjs::Error::new_from_js_message("cookies", "Error", &format!("decrypt: {}", e))
+        })?;
+
+        let cookies_json: serde_json::Value = serde_json::from_slice(&plain).map_err(|e| {
+            rquickjs::Error::new_from_js_message("cookies", "Error", &format!("json decode: {}", e))
+        })?;
+
+        let value = ctx.json_parse(cookies_json.to_string())?;
         Ok(value)
     }
 
@@ -152,7 +184,7 @@ impl<'js> WebView<'js> {
         Ok(())
     }
 
-    async fn url_change_task(&self) {
+    async fn url_change_task(&self, ctx: Ctx<'js>) {
         let endpoint = format!(
             "{}/plugin-api/webview/{}/on-url-request",
             self.endpoint_url, self.uid
@@ -181,8 +213,17 @@ impl<'js> WebView<'js> {
                         {
                             let url = data.get("url").cloned().unwrap_or_default();
                             for callback in self.callbacks.iter() {
-                                if let Err(e) = callback.call::<_, ()>((url.clone(),)) {
+                                match callback.call::<_, Value>((url.clone(),)) {
-                                    eprintln!("Error in onUrlChange callback: {}", e);
+                                    Ok(res) => {
+                                        if let Some(promise) = res.into_promise() {
+                                            if let Err(e) = promise.into_future::<()>().await.catch(&ctx) {
+                                                eprintln!("Error in onUrlChange promise: {}", e);
+                                            }
+                                        }
+                                    }
+                                    Err(e) => {
+                                        eprintln!("Error in onUrlChange callback: {}", e);
+                                    }
                                 }
                             }
                         } else {
@@ -203,12 +244,7 @@ impl<'js> WebView<'js> {
     }
 }
 
-pub fn init(ctx: &Ctx, endpoint_url: String, secret: String) -> rquickjs::Result<()> {
+pub fn init(ctx: &Ctx) -> rquickjs::Result<()> {
-    // Store config in globals for access in static methods
-    ctx.globals().set("__webviewUrl", endpoint_url)?;
-    ctx.globals().set("__webviewSecret", secret)?;
-
-    // Register the WebView class
     Class::<WebView>::define(&ctx.globals())?;
 
     Ok(())

rust/src/internal/apis/yt_engine.rs

@@ -0,0 +1,36 @@
+use rquickjs::{Ctx, Value};
+
+pub fn init(ctx: &Ctx) -> rquickjs::Result<()> {
+    ctx.eval::<Value, _>(
+        r#"
+    globalThis.YouTubeEngine = class YouTubeEngine {
+        async request(endpoint, qName, qValue) {
+            return await fetch(
+                `${__serverUrl}/plugin-api/yt-engine/${endpoint}?${qName}=${encodeURIComponent(qValue)}`,
+                {
+                    method: 'GET',
+                    headers: {
+                        'Content-Type': 'application/json',
+                        'X-Plugin-Secret': __serverSecret,
+                    },
+                }
+            ).then(res=>res.json())
+        }
+    
+        async search(query) {
+            return await this.request('search', 'query', query);
+        }
+
+        async video(videoId) {
+            return await this.request('video', 'videoId', videoId);
+        }
+
+        async streamManifest(videoId) {
+            return await this.request('stream-manifest', 'videoId', videoId);
+        }
+    }
+    "#,
+    )?;
+
+    Ok(())
+}