Erweiterungen

lib/model/chat_message.dart

@@ -0,0 +1,57 @@
+import 'package:isar/isar.dart';
+import 'package:json_annotation/json_annotation.dart';
+import 'package:stadtbote/main.dart';
+import 'package:stadtbote/tools/util.dart';
+
+part 'chat_message.g.dart';
+
+@collection
+@JsonSerializable()
+class ChatMessage {
+  late Id id;
+
+  late String time;
+
+  late String from;
+
+  late String subj;
+
+  late String text;
+
+  late bool? read = false;
+
+  ChatMessage();
+
+  factory ChatMessage.fromJson(Map<String, dynamic> json) => _$ChatMessageFromJson(json);
+
+  Map<String, dynamic> toJson() => _$ChatMessageToJson(this);
+
+  static Future<ChatMessage> mergeFromJson(Map<String, dynamic> json) async {
+    var availableMessage = await MyApp.isarInstance.chatMessages.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'];
+
+      return availableMessage;
+    } else {
+      var message = ChatMessage.fromJson(json);
+      message.read = false;
+
+      return message;
+    }
+  }
+
+  static Future<int> getNextId() async {
+    int currentExport500Id = await Util.preferencesGetInt('next_message_id', 0) as int;
+
+    currentExport500Id += 1;
+
+    Util.preferencesSaveInt("next_message_id", currentExport500Id);
+
+    return currentExport500Id;
+  }
+}