Refactor

lib/features/per_app_proxy/data/per_app_proxy_data_providers.dart

@@ -0,0 +1,9 @@
+import 'package:hiddify/features/per_app_proxy/data/per_app_proxy_repository.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'per_app_proxy_data_providers.g.dart';
+
+@Riverpod(keepAlive: true)
+PerAppProxyRepository perAppProxyRepository(PerAppProxyRepositoryRef ref) {
+  return PerAppProxyRepositoryImpl();
+}

lib/features/per_app_proxy/data/per_app_proxy_repository.dart

@@ -0,0 +1,55 @@
+import 'dart:convert';
+
+import 'package:flutter/services.dart';
+import 'package:fpdart/fpdart.dart';
+import 'package:hiddify/features/per_app_proxy/model/installed_package_info.dart';
+import 'package:hiddify/utils/utils.dart';
+
+abstract interface class PerAppProxyRepository {
+  TaskEither<String, List<InstalledPackageInfo>> getInstalledPackages();
+  TaskEither<String, Uint8List> getPackageIcon(String packageName);
+}
+
+class PerAppProxyRepositoryImpl
+    with InfraLogger
+    implements PerAppProxyRepository {
+  final _methodChannel = const MethodChannel("app.hiddify.com/platform");
+
+  @override
+  TaskEither<String, List<InstalledPackageInfo>> getInstalledPackages() {
+    return TaskEither(
+      () async {
+        loggy.debug("getting installed packages info");
+        final result =
+            await _methodChannel.invokeMethod<String>("get_installed_packages");
+        if (result == null) return left("null response");
+        return right(
+          (jsonDecode(result) as List).map((e) {
+            return InstalledPackageInfo.fromJson(e as Map<String, dynamic>);
+          }).toList(),
+        );
+      },
+    );
+  }
+
+  @override
+  TaskEither<String, Uint8List> getPackageIcon(String packageName) {
+    return TaskEither(
+      () async {
+        loggy.debug("getting package [$packageName] icon");
+        final result = await _methodChannel.invokeMethod<String>(
+          "get_package_icon",
+          {"packageName": packageName},
+        );
+        if (result == null) return left("null response");
+        final Uint8List decoded;
+        try {
+          decoded = base64.decode(result);
+        } catch (e) {
+          return left("error parsing base64 response");
+        }
+        return right(decoded);
+      },
+    );
+  }
+}