import '../core/utils/safe_convert.dart';

class AnnouncementItem {
  final int id;
  final String title;
  final String name;
  final String date;
  final String datePublished;
  final String? expiryDate;
  final String summary;
  final String content;
  final String type;
  final String priority;
  final String? author;
  final bool hasAttachment;
  final String? circularFilename;

  const AnnouncementItem({
    required this.id,
    required this.title,
    required this.name,
    required this.date,
    required this.datePublished,
    this.expiryDate,
    required this.summary,
    required this.content,
    required this.type,
    required this.priority,
    this.author,
    required this.hasAttachment,
    this.circularFilename,
  });

  factory AnnouncementItem.fromJson(Map<String, dynamic> json) {
    final title = SafeConvert.toSafeString(
      json['title'],
      SafeConvert.toSafeString(json['name'], 'Announcement'),
    );
    final datePublished = SafeConvert.toSafeString(
      json['date_published'],
      SafeConvert.toSafeString(json['date']),
    );

    return AnnouncementItem(
      id: SafeConvert.toSafeInt(json['id']),
      title: title,
      name: title,
      date: datePublished,
      datePublished: datePublished,
      expiryDate: SafeConvert.toNullableString(json['expiry_date']),
      summary: SafeConvert.toSafeString(json['summary']),
      content: SafeConvert.toSafeString(json['content']),
      type: SafeConvert.toSafeString(json['type'], 'notice'),
      priority: SafeConvert.toSafeString(json['priority'], '0'),
      author: SafeConvert.toNullableString(json['author']),
      hasAttachment: json['has_attachment'] == true,
      circularFilename: SafeConvert.toNullableString(json['circular_filename']),
    );
  }

  bool get isUrgent => priority == '2';
  bool get isImportant => priority == '1';

  String get priorityLabel {
    switch (priority) {
      case '2':
        return 'Urgent';
      case '1':
        return 'Important';
      case '0':
      default:
        return 'Normal';
    }
  }

  String get typeLabel {
    switch (type) {
      case 'circular':
        return 'Circular';
      case 'event':
        return 'Event';
      case 'notice':
      default:
        return 'Notice';
    }
  }
}