84 lines
2.0 KiB
Dart
84 lines
2.0 KiB
Dart
import 'package:stadtbote/main.dart';
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import 'package:stadtbote/objectbox.g.dart';
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import 'package:stadtbote/tools/util.dart';
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@Entity()
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class ChatMessage {
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@Id()
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int id = 0;
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// External ID from server
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@Unique()
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late int externalId;
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late int time;
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late String from;
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late String subj;
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late String text;
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bool read = false;
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ChatMessage();
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factory ChatMessage.fromJson(Map<String, dynamic> json) {
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final message = ChatMessage();
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message.id = 0; // Let ObjectBox assign the ID
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message.externalId = json['id'] as int; // Store external ID separately
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message.time = json['time'] as int;
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message.from = json['from'] as String;
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message.subj = json['subj'] as String;
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message.text = json['text'] as String;
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message.read = json['read'] as bool? ?? false;
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return message;
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}
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Map<String, dynamic> toJson() {
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return {
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'id': externalId, // Use external ID for JSON
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'time': time,
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'from': from,
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'subj': subj,
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'text': text,
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'read': read,
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};
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}
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static Future<ChatMessage> mergeFromJson(Map<String, dynamic> json) async {
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final box = MyApp.objectBoxStore.box<ChatMessage>();
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final externalId = json["id"] as int;
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// Find message by external ID
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final query = box.query(ChatMessage_.externalId.equals(externalId)).build();
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var availableMessage = query.findFirst();
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query.close();
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if (availableMessage != null) {
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availableMessage.externalId = json["id"];
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availableMessage.time = json["time"];
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availableMessage.from = json["from"];
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availableMessage.subj = json["subj"];
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availableMessage.text = json['text'];
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return availableMessage;
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} else {
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var message = ChatMessage.fromJson(json);
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message.read = false;
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return message;
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}
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}
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static Future<int> getNextId() async {
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int currentExport500Id = Util.preferencesGetInt('next_message_id', 0) as int;
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currentExport500Id += 1;
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Util.preferencesSaveInt("next_message_id", currentExport500Id);
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return currentExport500Id;
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}
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}
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