feat(android): file sending improving

2024-02-02 16:13:08 +01:00
parent 46451ef447
commit 466edeb39a
12 changed files with 590 additions and 221 deletions
@@ -0,0 +1,77 @@
+import 'dart:io';
+import 'dart:math';
+
+import 'package:nearby_service/nearby_service.dart';
+import 'package:nearby_service/src/utils/logger.dart';
+import 'package:path_provider/path_provider.dart';
+
+class FilesSocket {
+  FilesSocket.startListening({
+    required this.content,
+    required WebSocket socket,
+    required NearbyServiceFilesListener? listener,
+    required void Function(FilesSocket) onDestroy,
+  }) : _socket = socket {
+    _socket.listen(
+      (event) async {
+        if (event is List<int>) {
+          saveChunk(event);
+        } else if (event == finishCommand) {
+          final file = await getFile().whenComplete(
+            () {
+              onDestroy(this);
+            },
+          );
+          Logger.info('File ${file.content.fileName} was created');
+          listener?.onData.call(file);
+        }
+      },
+      onError: listener?.onError,
+      cancelOnError: listener?.cancelOnError,
+      onDone: listener?.onDone,
+    );
+    listener?.onCreated?.call();
+  }
+
+  static const _finishCommand = '@@FINISH_SENDING_FILE_';
+
+  static String generateFinishCommand(String id) {
+    return '$_finishCommand$id';
+  }
+
+  final WebSocket _socket;
+  final NearbyMessageFileContent content;
+  final _bytes = <int>[];
+
+  int chunksCount = 0;
+
+  String get finishCommand => '$_finishCommand${content.id}';
+
+  void sendData(dynamic event) {
+    _socket.add(event);
+  }
+
+  void saveChunk(List<int> value) {
+    _bytes.addAll(value);
+    chunksCount = chunksCount + 1;
+    final logStep = min(pow(10, chunksCount.toString().length - 1), 100);
+    if (chunksCount % logStep == 0) {
+      Logger.debug('Got $chunksCount chunks for the file ${content.fileName}');
+    }
+  }
+
+  Future<NearbyFile> getFile() async {
+    try {
+      final directory = await getTemporaryDirectory();
+      final file = File('${directory.path}/${content.fileName}');
+
+      await file.writeAsBytes(_bytes);
+      return NearbyFile(file: file, content: content);
+    } catch (e) {
+      Logger.error(e);
+      rethrow;
+    }
+  }
+
+  Future<void> close() => _socket.close();
+}