Erweiterungen

lib/model/message.dart

@@ -1,5 +1,6 @@
 import 'package:isar/isar.dart';
 import 'package:json_annotation/json_annotation.dart';
+import 'package:stadtbote/main.dart';
 import 'package:stadtbote/tools/util.dart';
 
 part 'message.g.dart';
@@ -17,12 +18,33 @@ class Message {
 
   late List<String> text;
 
+  late bool? read = false;
+
   Message();
 
   factory Message.fromJson(Map<String, dynamic> json) => _$MessageFromJson(json);
 
   Map<String, dynamic> toJson() => _$MessageToJson(this);
 
+  static Future<Message> mergeFromJson(Map<String, dynamic> json) async {
+    var availableMessage = await MyApp.isarInstance.messages.filter().idEqualTo(json["id"]).findFirst();
+
+    if (availableMessage != null) {
+      availableMessage.id = json["id"];
+      availableMessage.time = json["time"];
+      availableMessage.from = json["from"];
+      availableMessage.subj = json["subj"];
+      availableMessage.text = (json['text'] as List<dynamic>).map((e) => e as String).toList();
+
+      return availableMessage;
+    } else {
+      var message = Message.fromJson(json);
+      message.read = false;
+
+      return message;
+    }
+  }
+
   static Future<int> getNextId() async {
     int currentExport500Id = await Util.preferencesGetInt('next_message_id', 0) as int;