import 'package:objectbox/objectbox.dart';
import 'package:stadtbote/main.dart';
import 'package:stadtbote/tools/util.dart';

@Entity()
class ChatMessage {
  @Id()
  int id = 0;

  late int time;

  late String from;

  late String subj;

  late String text;

  bool read = false;

  ChatMessage();

  factory ChatMessage.fromJson(Map<String, dynamic> json) {
    final message = ChatMessage();
    message.id = json['id'] as int? ?? 0;
    message.time = json['time'] as int;
    message.from = json['from'] as String;
    message.subj = json['subj'] as String;
    message.text = json['text'] as String;
    message.read = json['read'] as bool? ?? false;
    return message;
  }

  Map<String, dynamic> toJson() {
    return {
      'id': id,
      'time': time,
      'from': from,
      'subj': subj,
      'text': text,
      'read': read,
    };
  }

  static Future<ChatMessage> mergeFromJson(Map<String, dynamic> json) async {
    var availableMessage = MyApp.objectBoxStore.box<ChatMessage>().get(json["id"] as int);

    if (availableMessage != null) {
      availableMessage.id = json["id"];
      availableMessage.time = json["time"];
      availableMessage.from = json["from"];
      availableMessage.subj = json["subj"];
      availableMessage.text = json['text'];

      return availableMessage;
    } else {
      var message = ChatMessage.fromJson(json);
      message.read = false;

      return message;
    }
  }

  static Future<int> getNextId() async {
    int currentExport500Id = Util.preferencesGetInt('next_message_id', 0) as int;

    currentExport500Id += 1;

    Util.preferencesSaveInt("next_message_id", currentExport500Id);

    return currentExport500Id;
  }
}