1 feat(mqtt): 实现MQTT服务器状态管理与事件系统

2
    3 1. 在MqttServer和MqttServerDto模型中添加IsConnect属性，用于跟踪连接状态
    4 2. 重构MqttManagementService服务，使用事件驱动方式管理服务器状态变化
    5 3. 实现MqttServerChangedEventArgs事件参数类，支持区分不同变更类型
    6 4. 在IEventService中添加OnMqttServerChanged事件，实现事件通知机制
    7 5. 优化数据存储结构，将MqttServers从ObservableCollection改为ObservableDictionary
    8 6. 更新MqttServiceManager以正确处理连接状态和事件触发
    9 7. 在WPF层更新UI以响应服务器状态变化
   10 8. 删除不再需要的Helper类(DataServicesHelper, MessageHelper, SiemensHelper)
   11 9. 在NLog配置中添加调试器输出目标以便调试
   12 10. 完善VariableHistoryViewModel防止空引用异常

DMS.WPF/Services/MqttDataService.cs

@@ -41,7 +41,11 @@ public class MqttDataService : IMqttDataService
         try
         {
             // 加载MQTT服务器数据
-            _dataStorageService.MqttServers = _mapper.Map<ObservableCollection<MqttServerItemViewModel>>(_appDataStorageService.MqttServers.Values);
+            foreach (var mqttServerDto in _appDataStorageService.MqttServers.Values)
+            {
+                _dataStorageService.MqttServers.TryAdd(mqttServerDto.Id,_mapper.Map<MqttServerItemViewModel>(mqttServerDto));
+            }
+
         }
         catch (Exception ex)
         {
@@ -61,7 +65,7 @@ public class MqttDataService : IMqttDataService
         dto.Id = id;
         
         var mqttServerItem = _mapper.Map<MqttServerItemViewModel>(dto);
-        _dataStorageService.MqttServers.Add(mqttServerItem);
+        _dataStorageService.MqttServers.Add(mqttServerItem.Id,mqttServerItem);
         
         return mqttServerItem;
     }
@@ -82,7 +86,7 @@ public class MqttDataService : IMqttDataService
     public async Task<bool> DeleteMqttServer(MqttServerItemViewModel mqttServer)
     {
         await _mqttAppService.DeleteMqttServerAsync(mqttServer.Id);
-        _dataStorageService.MqttServers.Remove(mqttServer);
+        _dataStorageService.MqttServers.Remove(mqttServer.Id);
         return true;
     }
 }