feat: move native communication to FFI (#1457)

ui/flutter/test/api/resolve_test.dart

@@ -1,46 +1,26 @@
-import 'dart:async';
 import 'dart:convert';
-import 'dart:io';
 
+import 'package:dio/dio.dart' as dio;
 import 'package:flutter_test/flutter_test.dart';
 import 'package:gopeed/api/api.dart' as api;
 import 'package:gopeed/api/model/options.dart';
 import 'package:gopeed/api/model/request.dart';
 import 'package:gopeed/api/model/resolve_task.dart';
+import 'package:gopeed/core/network/gopeed/gopeed_transport.dart';
 
 void main() {
   test('resolve sends the complete resolve task for magnet links', () async {
-    final server = await HttpServer.bind(InternetAddress.loopbackIPv4, 0);
-    addTearDown(server.close);
-
-    late Map<String, dynamic> requestBody;
-    final responseHandled = Completer<void>();
-    server.listen((request) async {
-      requestBody = jsonDecode(await utf8.decoder.bind(request).join()) as Map<String, dynamic>;
-      request.response.headers.contentType = ContentType.json;
-      request.response.write(
-        jsonEncode({
-          'code': 0,
-          'data': {
-            'id': 'resolved-id',
-            'res': {'name': 'sample', 'size': 0, 'range': false, 'files': <Object>[], 'hash': ''},
-          },
-        }),
-      );
-      await request.response.close();
-      responseHandled.complete();
-    });
-
-    api.init('tcp', '127.0.0.1:${server.port}', '');
+    final transport = _RecordingTransport();
+    api.setTransportForTesting(transport);
     final result = await api.resolve(
       ResolveTask(
         req: Request(url: 'magnet:?xt=urn:btih:0123456789abcdef0123456789abcdef01234567'),
         opts: Options(path: '/downloads', selectFiles: const []),
       ),
     );
-    await responseHandled.future;
 
     expect(result.id, 'resolved-id');
+    final requestBody = transport.data as Map<String, dynamic>;
     expect(requestBody.keys, containsAll(<String>['req', 'opts']));
     expect(
       (requestBody['req'] as Map<String, dynamic>)['url'],
@@ -49,3 +29,32 @@ void main() {
     expect((requestBody['opts'] as Map<String, dynamic>)['path'], '/downloads');
   });
 }
+
+class _RecordingTransport implements GopeedTransport {
+  dynamic data;
+
+  @override
+  Future<dynamic> request(
+    String path, {
+    String method = 'GET',
+    dynamic data,
+    Map<String, dynamic>? queryParameters,
+  }) async {
+    this.data = jsonDecode(jsonEncode(data));
+    return {
+      'code': 0,
+      'data': {
+        'id': 'resolved-id',
+        'res': {'name': 'sample', 'size': 0, 'range': false, 'files': <Object>[], 'hash': ''},
+      },
+    };
+  }
+
+  @override
+  String join(String path) => path;
+
+  @override
+  Future<dio.Response<String>> proxyRequest(String uri, {dynamic data, dio.Options? options}) {
+    throw UnimplementedError();
+  }
+}