initial

lib/features/common/connectivity/connectivity_controller.dart

@@ -0,0 +1,62 @@
+import 'package:hiddify/core/prefs/prefs.dart';
+import 'package:hiddify/domain/connectivity/connectivity.dart';
+import 'package:hiddify/services/connectivity/connectivity.dart';
+import 'package:hiddify/services/service_providers.dart';
+import 'package:hiddify/utils/utils.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'connectivity_controller.g.dart';
+
+// TODO: test and improve
+// TODO: abort connection on clash error
+@Riverpod(keepAlive: true)
+class ConnectivityController extends _$ConnectivityController with AppLogger {
+  @override
+  ConnectionStatus build() {
+    state = const Disconnected();
+    final connection = _connectivity
+        .watchConnectionStatus()
+        .map(ConnectionStatus.fromBool)
+        .listen((event) => state = event);
+
+    // currently changes wont take effect while connected
+    ref.listen(
+      prefsControllerProvider.select((value) => value.network),
+      (_, next) => _networkPrefs = next,
+      fireImmediately: true,
+    );
+    ref.listen(
+      prefsControllerProvider
+          .select((value) => (value.clash.httpPort!, value.clash.socksPort!)),
+      (_, next) => _ports = (http: next.$1, socks: next.$2),
+      fireImmediately: true,
+    );
+
+    ref.onDispose(connection.cancel);
+    return state;
+  }
+
+  ConnectivityService get _connectivity =>
+      ref.watch(connectivityServiceProvider);
+
+  late ({int http, int socks}) _ports;
+  // ignore: unused_field
+  late NetworkPrefs _networkPrefs;
+
+  Future<void> toggleConnection() async {
+    switch (state) {
+      case Disconnected():
+        if (!await _connectivity.grantVpnPermission()) {
+          state = const Disconnected(ConnectivityFailure.unexpected());
+          return;
+        }
+        await _connectivity.connect(
+          httpPort: _ports.http,
+          socksPort: _ports.socks,
+        );
+      case Connected():
+        await _connectivity.disconnect();
+      default:
+    }
+  }
+}