TF-2644 Handle total size exceeded maximum size when drag & drop multiple file to composer

lib/features/upload/domain/extensions/file_info_extension.dart

@@ -3,5 +3,15 @@ import 'package:model/upload/file_info.dart';
 import 'package:tmail_ui_user/features/upload/domain/model/mobile_file_upload.dart';
 
 extension FileInfoExtension on FileInfo {
-  MobileFileUpload toMobileFileUpload() => MobileFileUpload(fileName, filePath, fileSize, mimeType);
+  MobileFileUpload toMobileFileUpload() => MobileFileUpload(fileName, filePath!, fileSize, mimeType);
+
+  FileInfo withInline() => FileInfo(
+    fileName: fileName,
+    fileSize: fileSize,
+    filePath: filePath,
+    bytes: bytes,
+    readStream: readStream,
+    type: type,
+    isInline: true,
+    isShared: isShared);
 }

lib/features/upload/domain/extensions/list_file_info_extension.dart

@@ -3,5 +3,5 @@ import 'package:model/upload/file_info.dart';
 extension ListFileInfoExtension on List<FileInfo> {
   List<int> get listSize => map((file) => file.fileSize).toList();
 
-  num get totalSize => listSize.reduce((sum, size) => sum + size);
+  num get totalSize => listSize.isEmpty ? 0 : listSize.reduce((sum, size) => sum + size);
 }

lib/features/upload/domain/extensions/media_type_extension.dart

@@ -0,0 +1,28 @@
+import 'package:core/domain/extensions/media_type_extension.dart';
+import 'package:core/presentation/resources/image_paths.dart';
+import 'package:http_parser/http_parser.dart';
+
+extension MediaTypeExtension on MediaType {
+  String getIcon(ImagePaths imagePaths, {String? fileName}) {
+    if (validatePDFIcon(fileName: fileName) == true) {
+      return imagePaths.icFilePdf;
+    } else if (isDocFile()) {
+      return imagePaths.icFileDocx;
+    } else if (isExcelFile()) {
+      return imagePaths.icFileXlsx;
+    } else if (isPowerPointFile()) {
+      return imagePaths.icFilePptx;
+    } else if (isPdfFile()) {
+      return imagePaths.icFilePdf;
+    } else if (isZipFile()) {
+      return imagePaths.icFileZip;
+    } else if (isImageFile()) {
+      return imagePaths.icFilePng;
+    } else {
+      return imagePaths.icFileEPup;
+    }
+  }
+
+  bool validatePDFIcon({required String? fileName}) => mimeType == 'application/pdf' ||
+    (mimeType == 'application/octet-stream' && fileName?.endsWith('.pdf') == true);
+}

lib/features/upload/domain/extensions/platform_file_extension.dart

@@ -0,0 +1,13 @@
+import 'package:core/utils/platform_info.dart';
+import 'package:file_picker/file_picker.dart';
+import 'package:model/upload/file_info.dart';
+
+extension PlatformFileExtension on PlatformFile {
+  FileInfo toFileInfo() => FileInfo(
+    fileName: name,
+    fileSize: size,
+    filePath: PlatformInfo.isWeb ? '' : path ?? '',
+    bytes: bytes,
+    readStream: readStream
+  );
+}