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

model/lib/upload/file_info.dart

@@ -1,32 +1,65 @@
-
 import 'package:equatable/equatable.dart';
 import 'package:flutter/foundation.dart';
 import 'package:mime/mime.dart';
 
 class FileInfo with EquatableMixin {
   final String fileName;
-  final String filePath;
   final int fileSize;
+  final String? filePath;
   final Uint8List? bytes;
+  final Stream<List<int>>? readStream;
+  final String? type;
+  final bool? isInline;
+  final bool? isShared;
 
-  FileInfo(this.fileName, this.filePath, this.fileSize, {this.bytes});
-
-  factory FileInfo.empty() {
-    return FileInfo('', '', 0);
-  }
+  FileInfo({
+    required this.fileName,
+    required this.fileSize,
+    this.filePath,
+    this.bytes,
+    this.readStream,
+    this.type,
+    this.isInline,
+    this.isShared,
+  });
 
   factory FileInfo.fromBytes({
     required Uint8List bytes,
     String? name,
-    int? size
+    int? size,
+    String? type,
   }) {
-    return FileInfo(name ?? '', '', size ?? 0, bytes: bytes);
+    return FileInfo(
+      fileName: name ?? '',
+      fileSize: size ?? 0,
+      bytes: bytes,
+      type: type
+    );
   }
 
   String get fileExtension => fileName.split('.').last;
 
-  String get mimeType => lookupMimeType(kIsWeb ? fileName : filePath) ?? 'application/octet-stream';
+  String get mimeType {
+    if (type?.isNotEmpty == true) {
+      return type!;
+    } else if (filePath?.isNotEmpty == true){
+      final matchedType = lookupMimeType(filePath!, headerBytes: bytes) ?? 'application/octet-stream';
+      return matchedType;
+    } else {
+      final matchedType = lookupMimeType(fileName, headerBytes: bytes) ?? 'application/octet-stream';
+      return matchedType;
+    }
+  }
 
   @override
-  List<Object?> get props => [fileName, filePath, fileSize, bytes];
+  List<Object?> get props => [
+    fileName,
+    filePath,
+    fileSize,
+    bytes,
+    readStream,
+    type,
+    isInline,
+    isShared,
+  ];
 }