Update Saqel Platform: 2026-09-09 00:24:41

apps/teacher_app/lib/data/repositories/teacher_repository.dart

@@ -1,3 +1,4 @@
+import 'dart:async';
 import 'dart:convert';
 import 'dart:typed_data';
 import 'package:http/http.dart' as http;
@@ -6,6 +7,32 @@ import '../../core/services/storage_service.dart';
 import '../../core/utils/app_logger.dart';
 import '../models/teacher_models.dart';
 
+class MultipartRequestWithProgress extends http.MultipartRequest {
+  final void Function(int bytes, int totalBytes)? onProgress;
+
+  MultipartRequestWithProgress(String method, Uri url, {this.onProgress})
+      : super(method, url);
+
+  @override
+  http.ByteStream finalize() {
+    final byteStream = super.finalize();
+    if (onProgress == null) return byteStream;
+
+    final total = contentLength;
+    int bytes = 0;
+
+    final transformer = StreamTransformer<List<int>, List<int>>.fromHandlers(
+      handleData: (data, sink) {
+        bytes += data.length;
+        onProgress!(bytes, total);
+        sink.add(data);
+      },
+    );
+
+    return http.ByteStream(byteStream.transform(transformer));
+  }
+}
+
 /**
  * ==============================================================================
  * SAQEL TEACHER STUDIO - ENTERPRISE REPOSITORY (ZERO-MOCK PRODUCTION RAIL)
@@ -364,14 +391,16 @@ class TeacherRepository {
     double? fileSizeMb,
     String? filePath,
     Uint8List? fileBytes,
+    void Function(int bytes, int totalBytes)? onProgress,
   }) async {
     final stopwatch = Stopwatch()..start();
     final uploadUri = Uri.parse('$baseUrl${AppConfig.uploadVideoEndpoint}');
     try {
       final headers = await _authHeaders();
-      final request = http.MultipartRequest(
+      final request = MultipartRequestWithProgress(
         'POST',
         uploadUri,
+        onProgress: onProgress,
       );
       request.headers.addAll(headers..remove('Content-Type'));
       request.fields.addAll({