TF-2602 Add detect file charset on mobile

core/lib/utils/file_utils.dart

@@ -5,9 +5,12 @@ import 'package:core/domain/exceptions/download_file_exception.dart';
 import 'package:core/utils/app_logger.dart';
 import 'package:core/utils/platform_info.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter_charset_detector/flutter_charset_detector.dart';
 import 'package:path_provider/path_provider.dart';
 
 class FileUtils {
+  static const String DEFAULT_CHARSET = 'UTF-8';
+  static const String TEXT_PLAIN_MIME_TYPE = 'text/plain';
 
   Future<String> _getInternalStorageDirPath({
     required String nameFile,
@@ -135,4 +138,16 @@ class FileUtils {
       logError('$runtimeType::deleteCompressedFileOnMobile: error: $e');
     }
   }
+
+  Future<String> getFileCharset(String filePath) async {
+    try {
+      final file = File(filePath);
+      final decodingResult = await CharsetDetector.autoDecode(file.readAsBytesSync());
+      logError('FileUtils::getFileCharset: FILE_CHARSET = ${decodingResult.charset}');
+      return decodingResult.charset;
+    } catch (e) {
+      logError('FileUtils::getFileCharset: Exception: $e');
+      return DEFAULT_CHARSET;
+    }
+  }
 }

core/pubspec.lock

@@ -326,6 +326,38 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_charset_detector:
+    dependency: "direct main"
+    description:
+      name: flutter_charset_detector
+      sha256: "45de8a4b4255c1ea850a30955e7456091899ed4ff8b75593e14ec59f629b4b56"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.0"
+  flutter_charset_detector_android:
+    dependency: transitive
+    description:
+      name: flutter_charset_detector_android
+      sha256: "43d0c0063242d036b873ade737ebae38716af5cd8b2a4df1754adfd186d58e2c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
+  flutter_charset_detector_ios:
+    dependency: transitive
+    description:
+      name: flutter_charset_detector_ios
+      sha256: e0e2c7b819cd1f7c9a50da94bf7f0e6d7a095eb64e81196ec758e77793903d43
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.2"
+  flutter_charset_detector_platform_interface:
+    dependency: transitive
+    description:
+      name: flutter_charset_detector_platform_interface
+      sha256: fcb61de27285031164c945aca4b42e4d36f9a9e359212f21ab652275c9c723ec
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   flutter_image_compress:
     dependency: "direct main"
     description:

core/pubspec.yaml

@@ -79,6 +79,8 @@ dependencies:
 
   fk_user_agent: 2.1.0
 
+  flutter_charset_detector: 2.0.0
+
 dev_dependencies:
   flutter_test:
     sdk: flutter