114 lines
4.4 KiB
C#
114 lines
4.4 KiB
C#
using System.Collections.ObjectModel;
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using AutoMapper;
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using CommunityToolkit.Mvvm.ComponentModel;
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using CommunityToolkit.Mvvm.Messaging;
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using DMS.Application.DTOs;
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using DMS.Application.DTOs.Events;
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using DMS.Application.Interfaces;
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using DMS.Application.Services.Triggers; // 添加触发器服务引用
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using DMS.Core.Enums;
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using DMS.Core.Models;
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using DMS.Message;
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using DMS.WPF.Interfaces;
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using DMS.WPF.ViewModels.Items;
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namespace DMS.WPF.Services;
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/// <summary>
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/// 数据事件服务类，负责处理数据变更事件和消息传递。
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/// </summary>
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public class DataEventService : IDataEventService
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{
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private readonly IMapper _mapper;
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private readonly IDataStorageService _dataStorageService;
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private readonly IAppDataCenterService _appDataCenterService;
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private readonly IWPFDataService _wpfDataService;
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private readonly ITriggerEvaluationService _triggerEvaluationService; // 新增依赖
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/// <summary>
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/// DataEventService类的构造函数。
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/// </summary>
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public DataEventService(IMapper mapper,
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IDataStorageService dataStorageService,
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IAppDataCenterService appDataCenterService,
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IWPFDataService wpfDataService,
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ITriggerEvaluationService triggerEvaluationService // 新增参数
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)
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{
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_mapper = mapper;
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_dataStorageService = dataStorageService;
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_appDataCenterService = appDataCenterService;
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_wpfDataService = wpfDataService;
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_triggerEvaluationService = triggerEvaluationService; // 赋值
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// 监听变量值变更事件
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_appDataCenterService.VariableManagementService.OnVariableValueChanged += OnVariableValueChanged;
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_appDataCenterService.DataLoaderService.OnLoadDataCompleted += OnLoadDataCompleted;
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// 监听日志变更事件
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// _appDataCenterService.OnLogChanged += _logDataService.OnNlogChanged;
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}
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private void OnLoadDataCompleted(object? sender, DataLoadCompletedEventArgs e)
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{
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if (e.IsSuccess)
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{
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_wpfDataService.DeviceDataService.LoadAllDevices();
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_wpfDataService.VariableTableDataService.LoadAllVariableTables();
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_wpfDataService.VariableDataService.LoadAllVariables();
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_wpfDataService.MenuDataService.LoadAllMenus();
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_wpfDataService.MqttDataService.LoadMqttServers();
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_wpfDataService.LogDataService.LoadAllLog();
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}
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}
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/// <summary>
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/// 处理变量值变更事件。
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/// </summary>
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private async void OnVariableValueChanged(object? sender, VariableValueChangedEventArgs e) // 改为 async void 以便调用 await
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{
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// 在UI线程上更新变量值
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App.Current.Dispatcher.BeginInvoke(new Action(() =>
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{
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// 查找并更新对应的变量
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var variableToUpdate = _dataStorageService.Variables.FirstOrDefault(v => v.Id == e.VariableId);
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if (variableToUpdate != null)
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{
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variableToUpdate.DataValue = e.NewValue;
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variableToUpdate.DisplayValue = e.NewValue;
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variableToUpdate.UpdatedAt = e.UpdateTime;
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}
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}));
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// 在后台线程上调用触发器评估服务
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// 使用 Task.Run 将其放到线程池线程上执行，避免阻塞 UI 线程
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// 注意：这里调用的是 Fire-and-forget，因为我们不等待结果。
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// 如果将来需要处理执行结果或错误，可以考虑使用 async Task 并在适当的地方等待。
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_ = Task.Run(async () =>
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{
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try
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{
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await _triggerEvaluationService.EvaluateTriggersAsync(e.VariableId, e.NewValue);
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}
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catch (Exception ex)
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{
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// Log the exception appropriately.
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// Since this is fire-and-forget, we must handle exceptions internally.
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// You might have a logging service injected or use a static logger.
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// For now, let's assume a static logger or inline comment.
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System.Diagnostics.Debug.WriteLine($"Error evaluating triggers for variable {e.VariableId}: {ex}");
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// Consider integrating with your logging framework (e.g., NLog) here.
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}
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});
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}
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/// <summary>
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/// 处理LoadMessage消息。
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/// </summary>
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public async Task Receive(LoadMessage message)
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{
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}
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} |