116 lines
4.0 KiB
C#
116 lines
4.0 KiB
C#
using DeviceCommand.Devices;
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using Prism.Commands;
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using Prism.Ioc;
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using System;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows.Input;
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using UIShare.GlobalVariable;
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using UIShare.ViewModelBase;
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namespace DeviceEditModule.ViewModels
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{
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/// <summary>
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/// ANEVH80 电子负载 控制面板 ViewModel
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/// </summary>
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public class ANEVH80ViewModel : NavigateViewModelBase, IDisposable
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{
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private readonly DeviceManager _dm;
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private ANEVH80? _dev;
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private CancellationTokenSource? _cts;
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private string _deviceName = "ANEVH80";
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public string DeviceName { get => _deviceName; set => SetProperty(ref _deviceName, value); }
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private bool _isConnected;
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public bool IsConnected { get => _isConnected; set => SetProperty(ref _isConnected, value); }
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private bool _isBusy;
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public bool IsBusy { get => _isBusy; set => SetProperty(ref _isBusy, value); }
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#region 输入参数
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#endregion
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#region 测量结果
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private double _measuredValue;
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public double MeasuredValue { get => _measuredValue; set => SetProperty(ref _measuredValue, value); }
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private string _responseLog = "";
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public string ResponseLog { get => _responseLog; set => SetProperty(ref _responseLog, value); }
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#endregion
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#region 命令
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public ICommand QueryIdn { get; } public ICommand Measure { get; }
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#endregion
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public ANEVH80ViewModel(IContainerProvider cp) : base(cp)
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{
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_dm = cp.Resolve<DeviceManager>();
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QueryIdn = new DelegateCommand(async () => await Exec(async () => Log("IDN: 占位符设备")));
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Measure = new DelegateCommand(async () => await Exec(async () => { MeasuredValue = await _dev!.占位符(Ct()); Log($"测量值={MeasuredValue}"); }));
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Initialize();
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}
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#region 初始化 / Navigation
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public void Initialize(string? deviceName = null)
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{
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ANEVH80? found = null; string? fn = null;
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if (deviceName != null && _dm.DeviceMap.TryGetValue(deviceName, out var d) && d is ANEVH80 e)
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{ found = e; fn = deviceName; }
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else
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{
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foreach (var kv in _dm.DeviceMap)
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if (kv.Value is ANEVH80 it) { found = it; fn = kv.Key; break; }
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}
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_dev = found;
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DeviceName = fn ?? "ANEVH80 (未找到)";
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IsConnected = _dev?.IsConnected ?? false;
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Log(found != null
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? $"已关联设备 [{DeviceName}]，连接:{(IsConnected ? "已连接" : "未连接")}"
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: "未在 DeviceManager 中找到 ANEVH80 设备");
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}
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public override void OnNavigatedTo(NavigationContext context)
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{
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var pName = context.Parameters.GetValue<string?>("DeviceName");
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Initialize(pName);
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}
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#endregion
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#region 辅助
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private CancellationToken Ct() => (_cts = new CancellationTokenSource(TimeSpan.FromSeconds(10))).Token;
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private async Task Exec(Func<Task> action)
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{
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if (_dev == null) { Log("错误：未关联到设备实例，请检查设备配置。"); return; }
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if (IsBusy) return;
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IsBusy = true;
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try
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{
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await action();
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IsConnected = _dev.IsConnected;
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}
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catch (OperationCanceledException) { Log("命令超时或已取消。"); }
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catch (Exception ex) { Log($"错误：{ex.Message}"); }
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finally { IsBusy = false; }
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}
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private void Log(string message)
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{
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var line = $"[{DateTime.Now:HH:mm:ss}] {message}";
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ResponseLog = ResponseLog.Length > 4000
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? line + "\n" + ResponseLog[..3000]
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: line + "\n" + ResponseLog;
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}
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#endregion
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public void Dispose()
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{
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_cts?.Cancel();
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_cts?.Dispose();
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}
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}
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}
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