David P.G
e78a7981e1
2 3 - 在MqttServerDetailView的DataGrid右键菜单中添加"取消关联"选项 4 - 实现UnassignAlias命令，允许用户从MQTT服务器取消关联变量 5 - 使用确认对话框以防止误操作 6 - 集成现有的删除API来实际移除变量与MQTT服务器的关联 7 - 更新UI以提供用户反馈 8 9 此功能允许用户通过右键菜单轻松取消MQTT服务器与变量的关联。
327 lines
12 KiB
C#
327 lines
12 KiB
C#
using CommunityToolkit.Mvvm.ComponentModel;
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using CommunityToolkit.Mvvm.Input;
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using DMS.Application.Events;
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using DMS.Application.Interfaces;
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using DMS.Application.Interfaces.Management;
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using DMS.Core.Models;
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using DMS.WPF.Interfaces;
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using DMS.WPF.ItemViewModel;
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using DMS.WPF.ViewModels.Dialogs;
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using Microsoft.Extensions.Logging;
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using System.Collections;
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using System.Collections.ObjectModel;
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namespace DMS.WPF.ViewModels
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{
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/// <summary>
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/// MQTT服务器详情视图模型。
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/// 负责管理单个MQTT服务器的配置及其关联的变量数据。
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/// </summary>
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public partial class MqttServerDetailViewModel : ViewModelBase
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{
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private readonly ILogger<MqttServerDetailViewModel> _logger;
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private readonly IDialogService _dialogService;
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private readonly INotificationService _notificationService;
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private readonly IEventService _eventService;
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private readonly IMqttManagementService _mqttManagementService;
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private readonly IMqttAliasDataService _mqttAliasDataService;
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private readonly IWPFDataService _wpfDataService;
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private readonly IDataStorageService _dataStorageService;
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private readonly INavigationService _navigationService;
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/// <summary>
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/// 当前正在编辑的MQTT服务器对象。
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/// </summary>
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[ObservableProperty]
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private MqttServerItem _currentMqtt;
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/// <summary>
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/// 与当前MQTT服务器关联的变量数据集合。
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/// </summary>
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[ObservableProperty]
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private ObservableCollection<MqttAlias> _associatedVariables;
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[ObservableProperty]
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private IList _selectedMqttAliaes = new ArrayList();
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/// <summary>
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/// 构造函数。
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/// </summary>
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/// <param name="logger">日志服务。</param>
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/// <param name="dataServices">数据服务。</param>
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/// <param name="dialogService">对话框服务。</param>
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/// <param name="notificationService">通知服务。</param>
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/// <param name="mqttManagementService">MQTT管理服务</param>
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/// <param name="navigationService">导航服务</param>
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public MqttServerDetailViewModel(ILogger<MqttServerDetailViewModel> logger,
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IDialogService dialogService,
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INotificationService notificationService,
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IEventService eventService,
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IMqttManagementService mqttManagementService,
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IMqttAliasDataService mqttAliasDataService,
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IWPFDataService wpfDataService,
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IDataStorageService dataStorageService,
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INavigationService navigationService)
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{
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_logger = logger;
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_dialogService = dialogService;
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_notificationService = notificationService;
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this._eventService = eventService;
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_mqttManagementService = mqttManagementService;
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this._mqttAliasDataService = mqttAliasDataService;
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this._wpfDataService = wpfDataService;
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this._dataStorageService = dataStorageService;
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_navigationService = navigationService;
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}
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/// <summary>
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/// 编辑当前MQTT服务器
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/// </summary>
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[RelayCommand]
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private async Task EditMqtt()
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{
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try
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{
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if (CurrentMqtt == null)
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{
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_notificationService.ShowError("没有选中的MQTT服务器，无法编辑。");
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return;
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}
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// 创建编辑对话框的视图模型
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var mqttDialogViewModel = new MqttDialogViewModel(CurrentMqtt)
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{
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Title = "编辑MQTT服务器",
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PrimaryButText = "保存修改"
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};
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// 显示对话框
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var updatedMqtt = await _dialogService.ShowDialogAsync(mqttDialogViewModel);
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if (updatedMqtt == null)
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{
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return; // 用户取消了编辑
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}
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// 更新MQTT服务器
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var result = await _wpfDataService.MqttDataService.UpdateMqttServer(updatedMqtt);
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if (result)
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{
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// 更新当前视图模型的数据
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CurrentMqtt.ServerName = updatedMqtt.ServerName;
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CurrentMqtt.ServerUrl = updatedMqtt.ServerUrl;
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CurrentMqtt.Port = updatedMqtt.Port;
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CurrentMqtt.ClientId = updatedMqtt.ClientId;
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CurrentMqtt.Username = updatedMqtt.Username;
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CurrentMqtt.Password = updatedMqtt.Password;
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CurrentMqtt.PublishTopic = updatedMqtt.PublishTopic;
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CurrentMqtt.SubscribeTopic = updatedMqtt.SubscribeTopic;
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CurrentMqtt.MessageHeader = updatedMqtt.MessageHeader;
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CurrentMqtt.MessageContent = updatedMqtt.MessageContent;
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CurrentMqtt.MessageFooter = updatedMqtt.MessageFooter;
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_notificationService.ShowSuccess($"MQTT服务器编辑成功：{updatedMqtt.ServerName}");
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}
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else
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{
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_notificationService.ShowError("更新MQTT服务器失败。");
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}
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}
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catch (Exception e)
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{
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_logger.LogError(e, "编辑MQTT服务器过程中发生错误");
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_notificationService.ShowError($"编辑MQTT服务器过程中发生错误：{e.Message}", e);
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}
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}
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/// <summary>
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/// 重新加载当前MQTT服务器数据
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/// </summary>
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[RelayCommand]
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private async Task Reload()
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{
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if (CurrentMqtt?.Id > 0)
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{
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// 重新加载当前MQTT服务器数据
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var updatedMqtt = await _mqttManagementService.GetMqttServerByIdAsync(CurrentMqtt.Id);
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if (updatedMqtt != null)
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{
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// 更新CurrentMqtt的属性
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CurrentMqtt.ServerName = updatedMqtt.ServerName;
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CurrentMqtt.ServerUrl = updatedMqtt.ServerUrl;
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CurrentMqtt.Port = updatedMqtt.Port;
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CurrentMqtt.ClientId = updatedMqtt.ClientId;
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CurrentMqtt.Username = updatedMqtt.Username;
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CurrentMqtt.Password = updatedMqtt.Password;
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CurrentMqtt.PublishTopic = updatedMqtt.PublishTopic;
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CurrentMqtt.SubscribeTopic = updatedMqtt.SubscribeTopic;
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CurrentMqtt.MessageHeader = updatedMqtt.MessageHeader;
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CurrentMqtt.MessageContent = updatedMqtt.MessageContent;
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CurrentMqtt.MessageFooter = updatedMqtt.MessageFooter;
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}
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}
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}
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/// <summary>
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/// 导航回MQTT服务器列表页面
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/// </summary>
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[RelayCommand]
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private async Task NavigateToMqtts()
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{
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await _navigationService.NavigateToAsync(this, new NavigationParameter(nameof(MqttsViewModel)));
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}
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public override Task OnNavigatedToAsync(NavigationParameter parameter)
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{
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if (parameter == null) return Task.CompletedTask;
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if (_dataStorageService.MqttServers.TryGetValue(parameter.TargetId, out var mqttServerItem))
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{
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CurrentMqtt = mqttServerItem;
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}
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_eventService.OnVariableValueChanged += OnVariableValueChanged;
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return Task.CompletedTask;
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}
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private void OnVariableValueChanged(object? sender, VariableValueChangedEventArgs e)
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{
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var variableAlias=CurrentMqtt.VariableAliases.FirstOrDefault(v => v.Variable.Id == e.Variable.Id);
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if (variableAlias is not null)
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{
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variableAlias.Variable.DisplayValue=e.Variable.DisplayValue;
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variableAlias.Variable.UpdatedAt=e.Variable.UpdatedAt;
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}
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}
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/// <summary>
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/// 修改变量的MQTT发送名称
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/// </summary>
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[RelayCommand]
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private async Task ModifyAlias()
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{
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if (SelectedMqttAliaes.Count == 0)
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{
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_notificationService.ShowError("请选择要修改的变量项。");
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return;
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}
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try
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{
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List<MqttAliasItem> selectedMqttAliaes = SelectedMqttAliaes.Cast<MqttAliasItem>().ToList();
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// 创建一个用于输入新名称的简单对话框
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MqttAliasBatchEditDialogViewModel viewModel = new MqttAliasBatchEditDialogViewModel(selectedMqttAliaes);
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var resMqttAliaes = await _dialogService.ShowDialogAsync(viewModel);
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if (resMqttAliaes is null) // 用户没有取消操作
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{
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return;
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}
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int counter = 0;
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foreach (var mqttAliasItem in resMqttAliaes)
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{
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foreach (var selectItem in selectedMqttAliaes)
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{
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if (mqttAliasItem.Id == selectItem.Id)
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{
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selectItem.Alias = mqttAliasItem.Alias;
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}
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}
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// 保存更改到数据服务
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var result = await _wpfDataService.MqttAliasDataService.UpdateMqttAlias(mqttAliasItem);
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if (result)
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{
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counter++;
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}
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}
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if (counter>0)
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{
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_notificationService.ShowSuccess($"成功修改发送名称：{counter}个");
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}
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else
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{
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_notificationService.ShowError("更新发送名称失败。");
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}
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}
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catch (Exception e)
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{
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_logger.LogError(e, "修改变量发送名称时发生错误");
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_notificationService.ShowError($"修改发送名称时发生错误：{e.Message}");
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}
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}
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/// <summary>
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/// 取消关联变量
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/// </summary>
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[RelayCommand]
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private async Task UnassignAlias()
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{
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if (SelectedMqttAliaes.Count == 0)
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{
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_notificationService.ShowError("请选择要取消关联的变量项。");
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return;
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}
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try
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{
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var mqttAliasItems= SelectedMqttAliaes.Cast<MqttAliasItem>().ToList();
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// 拼接要删除的变量名称，用于确认提示
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var names = string.Join("、", mqttAliasItems.Select(v => v.Alias));
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// 显示确认删除对话框
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ConfirmDialogViewModel confirmDialogViewModel
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= new ConfirmDialogViewModel("取消关联", $"确认要取消关联变量：{names}与MQTT服务器的关联吗,取消后不可恢复，确认要取消吗？", "取消关联");
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var isDel = await _dialogService.ShowDialogAsync(confirmDialogViewModel);
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if (!isDel)
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return; // 如果用户取消删除，则返回
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int successCount = 0;
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foreach (var mqttAliasItem in mqttAliasItems)
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{
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var deleteResult = await _mqttAliasDataService.DeleteMqttAlias(mqttAliasItem);
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if (deleteResult)
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{
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successCount++;
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}
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}
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if (successCount > 0)
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{
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_notificationService.ShowSuccess($"成功取消关联：{successCount}个变量");
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}
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else
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{
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_notificationService.ShowError("取消关联失败。");
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}
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}
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catch (Exception e)
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{
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_logger.LogError(e, "取消关联变量时发生错误");
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_notificationService.ShowError($"取消关联时发生错误：{e.Message}");
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}
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}
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public override Task OnNavigatedFromAsync(NavigationParameter parameter)
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{
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_eventService.OnVariableValueChanged -= OnVariableValueChanged;
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return Task.CompletedTask;
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}
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}
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} |