fix ab peers state

flutter/lib/models/ab_model.dart

@@ -2,6 +2,7 @@ import 'dart:convert';
 
 import 'package:flutter/material.dart';
 import 'package:flutter_hbb/models/model.dart';
+import 'package:flutter_hbb/models/peer_model.dart';
 import 'package:flutter_hbb/models/platform_model.dart';
 import 'package:get/get.dart';
 import 'package:http/http.dart' as http;
@@ -12,7 +13,7 @@ class AbModel with ChangeNotifier {
   var abLoading = false;
   var abError = "";
   var tags = [].obs;
-  var peers = [].obs;
+  var peers = List<Peer>.empty(growable: true).obs;
 
   var selectedTags = List<String>.empty(growable: true).obs;
 
@@ -26,7 +27,7 @@ class AbModel with ChangeNotifier {
     abLoading = true;
     notifyListeners();
     // request
-    final api = "${await getApiServer()}/api/ab/get";
+    final api = "${await bind.mainGetApiServer()}/api/ab/get";
     try {
       final resp =
           await http.post(Uri.parse(api), headers: await getHttpHeaders());
@@ -37,7 +38,10 @@ class AbModel with ChangeNotifier {
         } else if (json.containsKey('data')) {
           final data = jsonDecode(json['data']);
           tags.value = data['tags'];
-          peers.value = data['peers'];
+          peers.clear();
+          for (final peer in data['peers']) {
+            peers.add(Peer.fromJson(peer));
+          }
         }
         notifyListeners();
         return resp.body;
@@ -45,6 +49,7 @@ class AbModel with ChangeNotifier {
         return "";
       }
     } catch (err) {
+      err.printError();
       abError = err.toString();
     } finally {
       abLoading = false;
@@ -53,10 +58,6 @@ class AbModel with ChangeNotifier {
     return null;
   }
 
-  Future<String> getApiServer() async {
-    return await bind.mainGetApiServer();
-  }
-
   void reset() {
     tags.clear();
     peers.clear();
@@ -67,7 +68,7 @@ class AbModel with ChangeNotifier {
     if (idContainBy(id)) {
       return;
     }
-    peers.add({"id": id});
+    peers.add(Peer.fromJson({"id": id}));
     notifyListeners();
   }
 
@@ -80,21 +81,22 @@ class AbModel with ChangeNotifier {
   }
 
   void changeTagForPeer(String id, List<dynamic> tags) {
-    final it = peers.where((element) => element['id'] == id);
+    final it = peers.where((element) => element.id == id);
     if (it.isEmpty) {
       return;
     }
-    it.first['tags'] = tags;
+    it.first.tags = tags;
   }
 
   Future<void> updateAb() async {
     abLoading = true;
     notifyListeners();
-    final api = "${await getApiServer()}/api/ab";
+    final api = "${await bind.mainGetApiServer()}/api/ab";
     var authHeaders = await getHttpHeaders();
     authHeaders['Content-Type'] = "application/json";
+    final peersJsonData = peers.map((e) => e.toJson()).toList();
     final body = jsonEncode({
-      "data": jsonEncode({"tags": tags, "peers": peers})
+      "data": jsonEncode({"tags": tags, "peers": peersJsonData})
     });
     try {
       final resp =
@@ -111,7 +113,7 @@ class AbModel with ChangeNotifier {
   }
 
   bool idContainBy(String id) {
-    return peers.where((element) => element['id'] == id).isNotEmpty;
+    return peers.where((element) => element.id == id).isNotEmpty;
   }
 
   bool tagContainBy(String tag) {
@@ -119,18 +121,18 @@ class AbModel with ChangeNotifier {
   }
 
   void deletePeer(String id) {
-    peers.removeWhere((element) => element['id'] == id);
+    peers.removeWhere((element) => element.id == id);
     notifyListeners();
   }
 
   void deleteTag(String tag) {
     tags.removeWhere((element) => element == tag);
     for (var peer in peers) {
-      if (peer['tags'] == null) {
+      if (peer.tags.isEmpty) {
         continue;
       }
-      if (((peer['tags']) as List<dynamic>).contains(tag)) {
-        ((peer['tags']) as List<dynamic>).remove(tag);
+      if (peer.tags.contains(tag)) {
+        ((peer.tags)).remove(tag);
       }
     }
     notifyListeners();
@@ -142,21 +144,21 @@ class AbModel with ChangeNotifier {
   }
 
   List<dynamic> getPeerTags(String id) {
-    final it = peers.where((p0) => p0['id'] == id);
+    final it = peers.where((p0) => p0.id == id);
     if (it.isEmpty) {
       return [];
     } else {
-      return it.first['tags'] ?? [];
+      return it.first.tags;
     }
   }
 
-  void setPeerOption(String id, String key, String value) {
-    final it = peers.where((p0) => p0['id'] == id);
+  void setPeerAlias(String id, String value) {
+    final it = peers.where((p0) => p0.id == id);
     if (it.isEmpty) {
-      debugPrint("${id} is not exists");
+      debugPrint("$id is not exists");
       return;
     } else {
-      it.first[key] = value;
+      it.first.alias = value;
     }
   }
 

flutter/lib/models/peer_model.dart

@@ -7,8 +7,8 @@ class Peer {
   final String username;
   final String hostname;
   final String platform;
-  final String alias;
-  final List<dynamic> tags;
+  String alias;
+  List<dynamic> tags;
   bool online = false;
 
   Peer.fromJson(Map<String, dynamic> json)
@@ -19,6 +19,17 @@ class Peer {
         alias = json['alias'] ?? '',
         tags = json['tags'] ?? [];
 
+  Map<String, dynamic> toJson() {
+    return <String, dynamic>{
+      "id": id,
+      "username": username,
+      "hostname": hostname,
+      "platform": platform,
+      "alias": alias,
+      "tags": tags,
+    };
+  }
+
   Peer({
     required this.id,
     required this.username,