import 'dart:typed_data';

class Attachment {
  final String name;
  final String mimeType;
  final Uint8List data;
  final DateTime createdAt;

  Attachment({
    required this.name,
    required this.mimeType,
    required this.data,
    DateTime? createdAt,
  }) : createdAt = createdAt ?? DateTime.now();

  bool get isImage => mimeType.startsWith('image/');
  bool get isPdf => mimeType == 'application/pdf';
  bool get isText => mimeType.startsWith('text/');

  int get sizeInKB => (data.length / 1024).ceil();
  String get displayName => name;
}