class Attachment {
  final String name;
  final String path;
  final int? size;
  final String? mimeType;
  final String? baseUrl; // Add mimeType if available

  Attachment({required this.name, required this.path, this.size, this.mimeType, this.baseUrl});

  bool get isImage {
    final ext = link.split('.').last.toLowerCase();
    return ['jpg', 'jpeg', 'png', 'gif', 'webp'].contains(ext) ||
        (mimeType?.startsWith('image/') ?? false);
  }

  bool get isVideo {
    final ext = link.split('.').last.toLowerCase();
    return ['mp4', 'mov', 'webm', 'avi'].contains(ext) ||
        (mimeType?.startsWith('video/') ?? false);
  }

  String get link => '$baseUrl/data$path';

  factory Attachment.fromJson(Map<String, dynamic> json, String baseUrl) => Attachment(
    name: json['name'],
    path: json['path'],
    baseUrl: baseUrl,
  );
}