refactor: popular [wip]

mod: grpc request

lib/grpc/grpc_client.dart

@@ -0,0 +1,36 @@
+import 'package:PiliPalaX/grpc/app/playeronline/v1/playeronline.pbgrpc.dart';
+import 'package:PiliPalaX/grpc/app/show/popular/v1/popular.pbgrpc.dart';
+import 'package:grpc/grpc.dart';
+
+class GrpcClient {
+  ClientChannel? _channel;
+  PlayerOnlineClient? _playerOnlineClient;
+  PopularClient? _popularClient;
+
+  GrpcClient._internal() {
+    _channel = ClientChannel(
+      'grpc.biliapi.net',
+      port: 443,
+      options: const ChannelOptions(
+        credentials: ChannelCredentials.secure(),
+      ),
+    );
+  }
+
+  static final GrpcClient _instance = GrpcClient._internal();
+  static GrpcClient get instance => _instance;
+
+  PlayerOnlineClient get playerOnlineClient {
+    _playerOnlineClient ??= PlayerOnlineClient(_channel!);
+    return _playerOnlineClient!;
+  }
+
+  PopularClient get popularClient {
+    _popularClient ??= PopularClient(_channel!);
+    return _popularClient!;
+  }
+
+  Future<void> shutdown() async {
+    await _channel?.shutdown();
+  }
+}