252 lines
8.3 KiB
C#
252 lines
8.3 KiB
C#
using System.Collections.Concurrent;
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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 Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Logging;
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using PMSWPF.Data.Repositories;
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using PMSWPF.Enums;
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using PMSWPF.Helper;
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using PMSWPF.Message;
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using PMSWPF.Models;
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using PMSWPF.ViewModels;
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using SqlSugar;
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namespace PMSWPF.Services;
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/// <summary>
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/// 数据服务类，负责从数据库加载和管理各种数据，并提供数据变更通知。
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/// 继承自ObservableRecipient，可以接收消息；实现IRecipient<LoadMessage>，处理加载消息。
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/// </summary>
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public partial class DataServices : ObservableRecipient, IRecipient<LoadMessage>
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{
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private readonly IMapper _mapper;
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// 设备列表，使用ObservableProperty特性，当值改变时会自动触发属性变更通知。
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[ObservableProperty]
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private List<Device> _devices;
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// 变量表列表。
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[ObservableProperty]
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private List<VariableTable> _variableTables;
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// 变量数据列表。
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[ObservableProperty]
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private List<Variable> _variables;
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// 菜单树列表。
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[ObservableProperty]
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private List<MenuBean> menuTrees;
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// MQTT配置列表。
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[ObservableProperty]
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private List<Mqtt> _mqtts;
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public ConcurrentDictionary<int, Variable> AllVariables;
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// 设备数据仓库，用于设备数据的CRUD操作。
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private readonly DeviceRepository _deviceRepository;
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// 菜单数据仓库，用于菜单数据的CRUD操作。
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private readonly MenuRepository _menuRepository;
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// MQTT数据仓库，用于MQTT配置数据的CRUD操作。
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private readonly MqttRepository _mqttRepository;
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// 变量数据仓库，用于变量数据的CRUD操作。
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private readonly VarDataRepository _varDataRepository;
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// 设备列表变更事件，当设备列表数据更新时触发。
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public event Action<List<Device>> OnDeviceListChanged;
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// 菜单树列表变更事件，当菜单树数据更新时触发。
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public event Action<List<MenuBean>> OnMenuTreeListChanged;
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// MQTT列表变更事件，当MQTT配置数据更新时触发。
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public event Action<List<Mqtt>> OnMqttListChanged;
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// 设备IsActive状态变更事件，当单个设备的IsActive状态改变时触发。
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public event Action<Device, bool> OnDeviceIsActiveChanged;
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/// <summary>
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/// 当_mqtts属性值改变时触发的局部方法，用于调用OnMqttListChanged事件。
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/// </summary>
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/// <param name="mqtts">新的MQTT配置列表。</param>
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partial void OnMqttsChanged(List<Mqtt> mqtts)
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{
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OnMqttListChanged?.Invoke(mqtts);
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}
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// 注释掉的代码块，可能用于变量数据变更事件的触发，但目前未启用。
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// {
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// OnVariableDataChanged?.Invoke(this, value);
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// }
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/// <summary>
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/// DataServices类的构造函数。
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/// 注入ILogger<DataServices>，并初始化各个数据仓库。
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/// </summary>
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/// <param name="mapper">AutoMapper 实例。</param>
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/// <param name="varDataRepository"></param>
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public DataServices(IMapper mapper,DeviceRepository deviceRepository,MenuRepository menuRepository,MqttRepository mqttRepository,VarDataRepository varDataRepository)
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{
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_mapper = mapper;
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IsActive = true; // 激活消息接收器
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_deviceRepository = deviceRepository;
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_menuRepository = menuRepository;
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_mqttRepository = mqttRepository;
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_varDataRepository = varDataRepository;
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_variables = new List<Variable>();
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AllVariables = new ConcurrentDictionary<int, Variable>();
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}
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/// <summary>
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/// 接收加载消息，根据消息类型从数据库加载对应的数据。
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/// </summary>
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/// <param name="message">加载消息，包含要加载的数据类型。</param>
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/// <exception cref="ArgumentException">如果加载类型未知，可能会抛出此异常（尽管当前实现中未显式抛出）。</exception>
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public async void Receive(LoadMessage message)
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{
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try
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{
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switch (message.LoadType)
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{
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case LoadTypes.All: // 加载所有数据
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await LoadDevices();
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await LoadMenus();
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await LoadMqtts();
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break;
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case LoadTypes.Devices: // 仅加载设备数据
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await LoadDevices();
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break;
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case LoadTypes.Menu: // 仅加载菜单数据
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await LoadMenus();
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break;
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case LoadTypes.Mqtts: // 仅加载MQTT配置数据
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await LoadMqtts();
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break;
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}
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}
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catch (Exception e)
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{
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// 捕获加载数据时发生的异常，并通过通知和日志记录错误信息。
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NotificationHelper.ShowError($"加载数据出现了错误：{e.Message}", e);
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}
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}
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/// <summary>
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/// 异步加载设备数据。
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/// </summary>
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/// <returns>表示异步操作的任务。</returns>
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private async Task LoadDevices()
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{
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// 取消订阅旧设备的属性变更事件，防止内存泄漏
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if (Devices != null)
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{
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foreach (var device in Devices)
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{
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device.PropertyChanged -= Device_PropertyChanged;
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}
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}
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Devices = await _deviceRepository.GetAllAsync();
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// 订阅新设备的属性变更事件
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if (Devices != null)
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{
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foreach (var device in Devices)
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{
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device.PropertyChanged += Device_PropertyChanged;
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}
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var allVar = await _varDataRepository.GetAllAsync();
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foreach (var variable in allVar)
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{
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AllVariables.AddOrUpdate(variable.Id, variable, (key, old) => variable);
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}
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}
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OnDeviceListChanged?.Invoke(Devices);
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}
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private void Device_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
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{
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if (e.PropertyName == nameof(Device.IsActive))
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{
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if (sender is Device device)
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{
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NlogHelper.Info($"设备 {device.Name} 的IsActive状态改变为 {device.IsActive}，触发设备IsActive状态变更事件。");
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OnDeviceIsActiveChanged?.Invoke(device, device.IsActive);
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}
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}
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}
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/// <summary>
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/// 异步加载菜单数据，并进行父级关联和排序。
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/// </summary>
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/// <returns>表示异步操作的任务。</returns>
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private async Task LoadMenus()
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{
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MenuTrees = await _menuRepository.GetMenuTreesAsync();
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foreach (MenuBean menu in MenuTrees)
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{
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MenuHelper.MenuAddParent(menu); // 为菜单添加父级引用
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DataServicesHelper.SortMenus(menu); // 排序菜单
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}
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OnMenuTreeListChanged?.Invoke(MenuTrees);
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}
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/// <summary>
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/// 异步获取所有MQTT配置。
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/// </summary>
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/// <returns>包含所有MQTT配置的列表。</returns>
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public async Task<List<Mqtt>> GetMqttsAsync()
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{
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var mqtts = await _mqttRepository.GetAllAsync();
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OnMqttListChanged?.Invoke(mqtts);
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return mqtts;
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}
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/// <summary>
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/// 异步加载MQTT配置数据。
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/// </summary>
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/// <returns>表示异步操作的任务。</returns>
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private async Task LoadMqtts()
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{
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Mqtts = await _mqttRepository.GetAllAsync();
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}
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/// <summary>
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/// 异步根据ID获取设备数据。
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/// </summary>
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/// <param name="id">设备ID。</param>
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/// <returns>设备对象，如果不存在则为null。</returns>
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public async Task<Device> GetDeviceByIdAsync(int id)
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{
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return await _deviceRepository.GetByIdAsync(id);
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}
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/// <summary>
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/// 异步加载变量数据。
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/// </summary>
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/// <returns>表示异步操作的任务。</returns>
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private async Task LoadVariables()
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{
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Variables = await _varDataRepository.GetAllAsync();
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}
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/// <summary>
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/// 异步更新变量数据。
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/// </summary>
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/// <param name="variable">要更新的变量数据。</param>
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/// <returns>表示异步操作的任务。</returns>
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public async Task UpdateVariableAsync(Variable variable)
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{
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await _varDataRepository.UpdateAsync(variable);
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}
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} |