using DeviceCommand.Devices;
using Microsoft.Win32;
using Newtonsoft.Json;
using Prism.Commands;
using Prism.Ioc;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media.Imaging;
using UIShare.GlobalVariable;
using UIShare.ViewModelBase;

namespace PowerAdaptabilityModule.ViewModels
{
    /// <summary>
    /// 电源适应性测试 ViewModel（Chroma61800 交流源一拖三）：
    /// 设备命令面板（三相输出设置 + LIST 模式 + SYNTHESIS 自定义波形输出）。
    /// </summary>
    public class PowerAdaptabilityViewModel : NavigateViewModelBase, IDisposable
    {
        #region 私有字段
        private readonly DeviceManager _dm;
        private readonly GlobalInfo _globalInfo;
        private Chroma61800? _dev;
        private TektronixMSO? _scope;
        private CancellationTokenSource? _cmdCts;
        #endregion

        #region 设备状态属性
        private string _deviceName = "Chroma61800";
        public string DeviceName { get => _deviceName; set => SetProperty(ref _deviceName, value); }

        private bool _isConnected;
        public bool IsConnected { get => _isConnected; set => SetProperty(ref _isConnected, value); }

        private bool _isBusy;
        public bool IsBusy { get => _isBusy; set => SetProperty(ref _isBusy, value); }
        #endregion

        #region 示波器（TektronixMSO）屏幕抓图
        private string _scopeName = "TektronixMSO";
        /// <summary>示波器设备名称（DeviceMap 键名）</summary>
        public string ScopeName { get => _scopeName; set => SetProperty(ref _scopeName, value); }

        private bool _isScopeConnected;
        /// <summary>示波器连接状态</summary>
        public bool IsScopeConnected { get => _isScopeConnected; set => SetProperty(ref _isScopeConnected, value); }

        private string _scopeImageDir = @"D:\acp\源测试\波形截图";
        /// <summary>波形图片存储位置（抓取的屏幕 PNG 保存目录），抓图/浏览选择时自动持久化</summary>
        public string ScopeImageDir { get => _scopeImageDir; set => SetProperty(ref _scopeImageDir, value); }

        private BitmapImage? _scopeImage;
        /// <summary>当前显示的波形截图（由 LIST / SYNTHESIS 按钮按配置文件同名规则加载）</summary>
        public BitmapImage? ScopeImage { get => _scopeImage; set => SetProperty(ref _scopeImage, value); }

        private bool _hasScopeImage;
        /// <summary>是否已加载波形截图（控制图片区占位提示的显隐）</summary>
        public bool HasScopeImage { get => _hasScopeImage; set => SetProperty(ref _hasScopeImage, value); }

        private string _scopeImageHint = "";
        /// <summary>波形截图查找/加载结果提示</summary>
        public string ScopeImageHint { get => _scopeImageHint; set => SetProperty(ref _scopeImageHint, value); }
        #endregion

        #region 示波器设置（采集 / 水平 / 通道 / 测量，对应 TektronixMSO 已有 SCPI 方法）
        /// <summary>采集模式选项 (ACQuire:MODe，显示名与 TekAcquisitionMode 枚举一致)</summary>
        public IReadOnlyList<string> ScopeAcquireModeOptions { get; } =
            new[] { "SAMple", "PEAKdetect", "HIRes", "AVErage", "ENVelope" };

        /// <summary>测量类型选项 (MEASUrement:TYPe，显示名与 TekMeasurementType 枚举一致)</summary>
        public IReadOnlyList<string> ScopeMeasTypeOptions { get; } =
            new[] { "AMPLitude", "FREQuency", "MEAN", "PK2PK", "MAXimum", "MINimum" };

        /// <summary>通道选择列表 (对应通道号 1~4)</summary>
        public IReadOnlyList<string> ScopeChannelOptions { get; } = new[] { "CH1", "CH2", "CH3", "CH4" };

        private string _scopeAcquireMode = "SAMple";
        /// <summary>采集模式 (ACQuire:MODe)</summary>
        public string ScopeAcquireMode { get => _scopeAcquireMode; set => SetProperty(ref _scopeAcquireMode, value); }

        private double _scopeTimeScale = 0.001;
        /// <summary>水平刻度待设值 (HORizontal:SCAle, s/Div)</summary>
        public double ScopeTimeScale { get => _scopeTimeScale; set => SetProperty(ref _scopeTimeScale, value); }

        private long _scopeRecordLength = 6250000;
        /// <summary>记录长度待设值 (HORizontal:RECOrdlength, 采样点数)</summary>
        public long ScopeRecordLength { get => _scopeRecordLength; set => SetProperty(ref _scopeRecordLength, value); }

        private string _sampleRateText = "";
        /// <summary>采样率查询结果显示 (HORizontal:SAMPLERate?, Sa/s)</summary>
        public string SampleRateText { get => _sampleRateText; set => SetProperty(ref _sampleRateText, value); }

        private int _selectedScopeChannelIndex;
        /// <summary>当前编辑通道索引 (0~3 → CH1~CH4)</summary>
        public int SelectedScopeChannelIndex { get => _selectedScopeChannelIndex; set => SetProperty(ref _selectedScopeChannelIndex, value); }

        private double _channelScale = 100;
        /// <summary>通道垂直刻度待设值 (CH:SCAle, V/Div)</summary>
        public double ChannelScale { get => _channelScale; set => SetProperty(ref _channelScale, value); }

        private double _channelPosition;
        /// <summary>通道垂直位置待设值 (CH:POSition, Div)</summary>
        public double ChannelPosition { get => _channelPosition; set => SetProperty(ref _channelPosition, value); }

        private int _measurementNumber = 1;
        /// <summary>测量项编号 (MEASUrement:MEASn)</summary>
        public int MeasurementNumber { get => _measurementNumber; set => SetProperty(ref _measurementNumber, value); }

        private string _measurementType = "FREQuency";
        /// <summary>测量类型 (MEASUrement:TYPe)</summary>
        public string MeasurementType { get => _measurementType; set => SetProperty(ref _measurementType, value); }

        private string _measurementSource = "CH1";
        /// <summary>测量源 (MEASUrement:SOUrce1, 如 CH1/CH2)</summary>
        public string MeasurementSource { get => _measurementSource; set => SetProperty(ref _measurementSource, value); }

        private string _measResultText = "";
        /// <summary>测量查询结果显示</summary>
        public string MeasResultText { get => _measResultText; set => SetProperty(ref _measResultText, value); }

        /// <summary>当前编辑通道号 (1~4)</summary>
        private int ScopeChannelNo => SelectedScopeChannelIndex + 1;
        #endregion

        #region 输入参数（三相输出设置）
        private double _voltage = 220;
        /// <summary>待设置的交流电压 (V)</summary>
        public double Voltage { get => _voltage; set => SetProperty(ref _voltage, value); }

        private double _frequency = 50;
        /// <summary>待设置的输出频率 (Hz)</summary>
        public double Frequency { get => _frequency; set => SetProperty(ref _frequency, value); }

        private string _waveform = "SINE";
        /// <summary>波形选择</summary>
        public string Waveform { get => _waveform; set => SetProperty(ref _waveform, value); }

        private string _couplingMode = "AC";
        /// <summary>输出耦合模式 (AC / DC / ACDC)</summary>
        public string CouplingMode { get => _couplingMode; set => SetProperty(ref _couplingMode, value); }

        private string _threePhaseRelation = "BALANCE";
        /// <summary>三相关系 (INDEPEND / SAMEFREQ / BALANCE)</summary>
        public string ThreePhaseRelation { get => _threePhaseRelation; set => SetProperty(ref _threePhaseRelation, value); }

        /// <summary>相位选择列表: 0=ALL(三相同时), 1=A相, 2=B相, 3=C相</summary>
        public List<string> PhaseOptions { get; } = new() { "ALL (三相)", "A相 (Φ1)", "B相 (Φ2)", "C相 (Φ3)" };
        private int _selectedPhaseIndex;
        /// <summary>当前选中的相位索引 (0=ALL, 1=A, 2=B, 3=C)</summary>
        public int SelectedPhaseIndex { get => _selectedPhaseIndex; set => SetProperty(ref _selectedPhaseIndex, value); }
        #endregion

        #region 输入参数（LIST 模式 · 三相独立编辑）
        /// <summary>下发完成到启动之间的延时（ms），对应 *D 命令，等待仪器就绪</summary>
        private const int StartDelayMs = 200;

        private string _listTrigger = "AUTO";
        /// <summary>列表触发形态 (AUTO / MANUAL / EXCITE)</summary>
        public string ListTrigger { get => _listTrigger; set => SetProperty(ref _listTrigger, value); }

        private int _listCount;
        /// <summary>列表执行次数 (0 = 无限循环, 最大 65535)</summary>
        public int ListCount { get => _listCount; set => SetProperty(ref _listCount, value); }

        private string _listTimeBase = "TIME";
        /// <summary>列表时间基础 (TIME / CYCLE)</summary>
        public string ListTimeBase { get => _listTimeBase; set => SetProperty(ref _listTimeBase, value); }

        private string _listPhaseContinue = "DISABLE";
        /// <summary>相位连续功能 (LIST:PHAS:CONT, DISABLE / ENABLE)</summary>
        public string ListPhaseContinue { get => _listPhaseContinue; set => SetProperty(ref _listPhaseContinue, value); }

        /// <summary>三相各自的 LIST 序列配置（索引 0=A/Φ1, 1=B/Φ2, 2=C/Φ3），INST:EDIT EACH 逐相下发</summary>
        private readonly ListPhaseConfig[] _phaseConfigs = { new(), new(), new() };

        /// <summary>相位编辑选项（对应 INST:NSEL 1/2/3）</summary>
        public List<string> ListPhaseOptions { get; } = new() { "A相 (Φ1)", "B相 (Φ2)", "C相 (Φ3)" };

        private int _listEditPhaseIndex;
        /// <summary>当前正在编辑的相位索引 (0=A, 1=B, 2=C)，切换时下方序列文本框自动刷新为该相内容</summary>
        public int ListEditPhaseIndex
        {
            get => _listEditPhaseIndex;
            set
            {
                if (SetProperty(ref _listEditPhaseIndex, value))
                    RaiseListSequenceChanged();
            }
        }

        /// <summary>当前选中相位的配置对象</summary>
        private ListPhaseConfig CurCfg => _phaseConfigs[_listEditPhaseIndex];

        // —— 以下文本属性均代理到"当前编辑相位"的配置，切换相位时统一刷新 ——
        /// <summary>相位角度序列 (LIST:DEGR, °)</summary>
        public string ListDegrText { get => CurCfg.Degr; set { if (CurCfg.Degr != value) { CurCfg.Degr = value; RaisePropertyChanged(); } } }
        /// <summary>AC 起始电压序列 (LIST:VOLT:AC:STAR, V)</summary>
        public string ListVoltAcStartText { get => CurCfg.VoltAcStart; set { if (CurCfg.VoltAcStart != value) { CurCfg.VoltAcStart = value; RaisePropertyChanged(); } } }
        /// <summary>AC 结束电压序列 (LIST:VOLT:AC:END, V)</summary>
        public string ListVoltAcEndText { get => CurCfg.VoltAcEnd; set { if (CurCfg.VoltAcEnd != value) { CurCfg.VoltAcEnd = value; RaisePropertyChanged(); } } }
        /// <summary>DC 起始电压序列 (LIST:VOLT:DC:STAR, V)</summary>
        public string ListVoltDcStartText { get => CurCfg.VoltDcStart; set { if (CurCfg.VoltDcStart != value) { CurCfg.VoltDcStart = value; RaisePropertyChanged(); } } }
        /// <summary>DC 结束电压序列 (LIST:VOLT:DC:END, V)</summary>
        public string ListVoltDcEndText { get => CurCfg.VoltDcEnd; set { if (CurCfg.VoltDcEnd != value) { CurCfg.VoltDcEnd = value; RaisePropertyChanged(); } } }
        /// <summary>起始频率序列 (LIST:FREQ:STAR, Hz)</summary>
        public string ListFreqStartText { get => CurCfg.FreqStart; set { if (CurCfg.FreqStart != value) { CurCfg.FreqStart = value; RaisePropertyChanged(); } } }
        /// <summary>结束频率序列 (LIST:FREQ:END, Hz)</summary>
        public string ListFreqEndText { get => CurCfg.FreqEnd; set { if (CurCfg.FreqEnd != value) { CurCfg.FreqEnd = value; RaisePropertyChanged(); } } }
        /// <summary>静止时间序列 (LIST:DWEL, ms)</summary>
        public string ListDwellText { get => CurCfg.Dwell; set { if (CurCfg.Dwell != value) { CurCfg.Dwell = value; RaisePropertyChanged(); } } }
        /// <summary>波形顺序 (LIST:SHAP，可直接写形状名或引用 A/B 组)</summary>
        public string ListShapeText { get => CurCfg.ShapeSeq; set { if (CurCfg.ShapeSeq != value) { CurCfg.ShapeSeq = value; RaisePropertyChanged(); } } }

        /// <summary>切换编辑相位后，通知所有序列文本框刷新为新相位内容</summary>
        private void RaiseListSequenceChanged()
        {
            RaisePropertyChanged(nameof(ListDegrText));
            RaisePropertyChanged(nameof(ListVoltAcStartText));
            RaisePropertyChanged(nameof(ListVoltAcEndText));
            RaisePropertyChanged(nameof(ListVoltDcStartText));
            RaisePropertyChanged(nameof(ListVoltDcEndText));
            RaisePropertyChanged(nameof(ListFreqStartText));
            RaisePropertyChanged(nameof(ListFreqEndText));
            RaisePropertyChanged(nameof(ListDwellText));
            RaisePropertyChanged(nameof(ListShapeText));
        }
        #endregion

        #region 下拉选项
        public IReadOnlyList<string> WaveformOptions { get; } = new[] { "SINE", "SQUA", "TRIAN", "CSIN" };
        public IReadOnlyList<string> CouplingOptions { get; } = new[] { "AC", "DC", "ACDC" };
        public IReadOnlyList<string> RelationOptions { get; } = new[] { "INDEPEND", "SAMEFREQ", "BALANCE" };
        public IReadOnlyList<string> ListTriggerOptions { get; } = new[] { "AUTO", "MANUAL", "EXCITE" };
        public IReadOnlyList<string> ListTimeBaseOptions { get; } = new[] { "TIME", "CYCLE" };
        public IReadOnlyList<string> ListPhaseContinueOptions { get; } = new[] { "DISABLE", "ENABLE" };
        #endregion

        #region 输入参数（SYNTHESIS 自定义谐波波形输出）
        /// <summary>谐波阶数据格式选项 (SYNT:COMP)：VALUE=绝对值，PERCENT=基频百分率，后缀 1/2/3 为三段波形</summary>
        public IReadOnlyList<string> SynthComposeOptions { get; } = new[]
            { "VALUE1", "VALUE2", "VALUE3", "PERCENT1", "PERCENT2", "PERCENT3" };

        /// <summary>基频选项 (SYNT:FREQ)：仅支持 50 / 60 Hz</summary>
        public IReadOnlyList<int> SynthFrequencyOptions { get; } = new[] { 50, 60 };

        private string _synthCompose = "VALUE1";
        /// <summary>谐波阶数据格式 (SYNT:COMP)</summary>
        public string SynthCompose { get => _synthCompose; set => SetProperty(ref _synthCompose, value); }

        private int _synthFrequency = 50;
        /// <summary>基频 (SYNT:FREQ, 50 | 60 Hz)</summary>
        public int SynthFrequency { get => _synthFrequency; set => SetProperty(ref _synthFrequency, value); }

        private double _synthFundamental = 220;
        /// <summary>基波交流电压 (SYNT:FUND, 0.0 ~ 350.0 V)</summary>
        public double SynthFundamental { get => _synthFundamental; set => SetProperty(ref _synthFundamental, value); }

        private double _synthDc;
        /// <summary>叠加直流电压 (SYNT:DC, -495.0 ~ 495.0 V)</summary>
        public double SynthDc { get => _synthDc; set => SetProperty(ref _synthDc, value); }

        // —— SYNTHESIS 三相独立编辑：每相持有各自的起始相位/谐波振幅/谐波相位（索引 0=A/Φ1, 1=B/Φ2, 2=C/Φ3），INST:EDIT EACH 逐相下发 ——
        private readonly double[] _synthStartPhases = new double[3];
        private readonly string[] _synthAmplitudeTexts = new string[3];
        private readonly string[] _synthPhaseTexts = new string[3];

        private int _synthEditPhaseIndex;
        /// <summary>当前正在编辑的相位索引 (0=A, 1=B, 2=C)，切换时下方起始相位/谐波文本框自动刷新为该相内容</summary>
        public int SynthEditPhaseIndex
        {
            get => _synthEditPhaseIndex;
            set
            {
                if (SetProperty(ref _synthEditPhaseIndex, value))
                {
                    RaisePropertyChanged(nameof(SynthStartPhase));
                    RaisePropertyChanged(nameof(SynthAmplitudeText));
                    RaisePropertyChanged(nameof(SynthPhaseText));
                }
            }
        }

        /// <summary>起始相位角 (SYNT:SPH, 0.0 ~ 359.9 °)，作用于当前编辑相位；复制到三相时按 ±120° 偏移</summary>
        public double SynthStartPhase
        {
            get => _synthStartPhases[_synthEditPhaseIndex];
            set { _synthStartPhases[_synthEditPhaseIndex] = value; RaisePropertyChanged(); }
        }

        /// <summary>各次谐波振幅序列文本 (SYNT:AMPL, 英文逗号分隔, 首值对应 2 次谐波，2~50 次共 49 个值)，作用于当前编辑相位</summary>
        public string SynthAmplitudeText
        {
            get => _synthAmplitudeTexts[_synthEditPhaseIndex];
            set { _synthAmplitudeTexts[_synthEditPhaseIndex] = value; RaisePropertyChanged(); }
        }

        /// <summary>各次谐波相位角序列文本 (SYNT:PHAS, 英文逗号分隔, 0~359.9°)，作用于当前编辑相位</summary>
        public string SynthPhaseText
        {
            get => _synthPhaseTexts[_synthEditPhaseIndex];
            set { _synthPhaseTexts[_synthEditPhaseIndex] = value; RaisePropertyChanged(); }
        }
        #endregion

        #region SYNTHESIS 波形预设（文件：D:\acp\源测试\合成波形，一键载入/保存自定义谐波波形）
        /// <summary>合成波形预设文件目录（LIST 测试项目录下的子目录，避免与 LIST 预设混淆）</summary>
        private static readonly string SynthStorageDir = Path.Combine(PresetStorageDir, "合成波形");

        /// <summary>合成波形预设文件目录提示（供界面显示）</summary>
        public string SynthStorageHint => $"波形文件目录：{SynthStorageDir}";

        // 从磁盘加载的合成波形预设集合
        private List<SynthPreset> _synthPresets = new();
        /// <summary>合成波形预设集合</summary>
        public IReadOnlyList<SynthPreset> SynthPresets => _synthPresets;

        private List<string> _synthPresetOptions = new();
        /// <summary>合成波形预设名称列表（供 ComboBox 显示）</summary>
        public IReadOnlyList<string> SynthPresetOptions => _synthPresetOptions;

        private string _synthPresetName = "";
        /// <summary>当前波形名称（保存时作为文件名；载入后自动填充）</summary>
        public string SynthPresetName { get => _synthPresetName; set => SetProperty(ref _synthPresetName, value); }

        private string _synthPresetNote = "";
        /// <summary>当前波形说明（随文件保存，载入后自动填充）</summary>
        public string SynthPresetNote { get => _synthPresetNote; set => SetProperty(ref _synthPresetNote, value); }

        /// <summary>当前已打开的波形文件完整路径（载入或另存后设置）；null 表示尚未与磁盘文件绑定</summary>
        private string? _currentSynthPath;

        private int _selectedSynthPresetIndex = -1;
        /// <summary>当前选中的合成波形预设索引（-1 表示未选择）</summary>
        public int SelectedSynthPresetIndex
        {
            get => _selectedSynthPresetIndex;
            set
            {
                if (SetProperty(ref _selectedSynthPresetIndex, value))
                {
                    // 选中后把名称/说明填入编辑框，便于修改后另存或覆盖保存
                    if (value >= 0 && value < _synthPresets.Count)
                    {
                        SynthPresetName = _synthPresets[value].Name;
                        SynthPresetNote = _synthPresets[value].Note;
                    }
                }
            }
        }
        #endregion

        #region 试验预设（测试项文件：D:\acp\源测试，一键载入大纲典型波形）
        /// <summary>测试项文件默认存储目录（保存与查询均在此目录）</summary>
        private const string PresetStorageDir = @"D:\acp\源测试";

        /// <summary>测试项文件扩展名</summary>
        private const string PresetFileExt = ".json";

        /// <summary>测试项文件目录提示（供界面显示）</summary>
        public string PresetStorageHint => $"测试项文件目录：{PresetStorageDir}";

        // 从磁盘加载的测试项集合（源真相为 PresetStorageDir 下的 .json 文件）
        private List<ListPreset> _presets = new();
        /// <summary>测试项集合（由 PresetStorageDir 下的文件加载而来）</summary>
        public IReadOnlyList<ListPreset> Presets => _presets;

        // 供 ComboBox 显示的名称列表，随磁盘刷新
        private List<string> _presetOptions = new();
        /// <summary>测试项名称列表（供 ComboBox 显示）</summary>
        public IReadOnlyList<string> PresetOptions => _presetOptions;

        private string _presetName = "";
        /// <summary>当前测试项名称（保存时作为文件名；载入后自动填充，便于覆盖保存）</summary>
        public string PresetName { get => _presetName; set => SetProperty(ref _presetName, value); }

        private string _presetNote = "";
        /// <summary>当前测试项说明（随文件保存，载入后自动填充）</summary>
        public string PresetNote { get => _presetNote; set => SetProperty(ref _presetNote, value); }

        /// <summary>当前已打开的测试项文件完整路径（载入或另存后设置）；null 表示尚未与磁盘文件绑定</summary>
        private string? _currentPresetPath;

        private int _selectedPresetIndex = -1;
        /// <summary>当前选中的测试项索引（-1 表示未选择）</summary>
        public int SelectedPresetIndex
        {
            get => _selectedPresetIndex;
            set
            {
                if (SetProperty(ref _selectedPresetIndex, value))
                {
                    // 选中后把名称/说明填入编辑框，便于修改后另存或覆盖保存
                    if (value >= 0 && value < _presets.Count)
                    {
                        PresetName = _presets[value].Name;
                        PresetNote = _presets[value].Note;
                    }
                }
            }
        }
        #endregion

        #region 日志
        private string _responseLog = "";
        /// <summary>操作与采样日志</summary>
        public string ResponseLog { get => _responseLog; set => SetProperty(ref _responseLog, value); }
        #endregion

        #region 命令
        public ICommand QueryIdnCommand { get; }
        public ICommand ResetCommand { get; }
        public ICommand ExitRemoteCommand { get; }
        public ICommand OutputOnCommand { get; }
        public ICommand OutputOffCommand { get; }
        public ICommand RelayOnCommand { get; }
        public ICommand RelayOffCommand { get; }
        public ICommand ApplyCouplingCommand { get; }
        public ICommand SetThreePhaseModeCommand { get; }
        public ICommand SetSinglePhaseModeCommand { get; }
        public ICommand ApplyRelationCommand { get; }
        public ICommand SetVoltageCommand { get; }
        public ICommand SetFrequencyCommand { get; }
        public ICommand SetWaveformCommand { get; }
        public ICommand SetFixedModeCommand { get; }
        public ICommand EnterListModeCommand { get; }
        public ICommand LoadPresetCommand { get; }
        public ICommand SavePresetCommand { get; }
        public ICommand SavePresetAsCommand { get; }
        public ICommand DeletePresetCommand { get; }
        public ICommand CopyPhaseToThreeCommand { get; }
        public ICommand DownloadThreePhaseListCommand { get; }
        public ICommand ListStopCommand { get; }
        public ICommand DownloadSynthesisCommand { get; }
        public ICommand SynthStopCommand { get; }
        public ICommand ResetSynthHarmonicsCommand { get; }
public ICommand CopySynthPhaseToThreeCommand { get; }
        public ICommand LoadSynthPresetCommand { get; }
        public ICommand SaveSynthPresetCommand { get; }
        public ICommand SaveSynthPresetAsCommand { get; }
        public ICommand DeleteSynthPresetCommand { get; }
        public ICommand CaptureScopeImageCommand { get; }
        public ICommand BrowseScopeImageDirCommand { get; }
        public ICommand ShowListWaveImageCommand { get; }
        public ICommand ShowSynthWaveImageCommand { get; }
        public ICommand ScopeAcquireRunCommand { get; }
        public ICommand ScopeAcquireStopCommand { get; }
        public ICommand QueryAcquireStateCommand { get; }
        public ICommand ApplyAcquireModeCommand { get; }
        public ICommand SetScopeTimeScaleCommand { get; }
        public ICommand SetRecordLengthCommand { get; }
        public ICommand QuerySampleRateCommand { get; }
        public ICommand ChannelDisplayOnCommand { get; }
        public ICommand ChannelDisplayOffCommand { get; }
        public ICommand SetChannelScaleCommand { get; }
        public ICommand SetChannelPositionCommand { get; }
        public ICommand AddMeasurementCommand { get; }
        public ICommand QueryMeasCurrentCommand { get; }
        public ICommand QueryMeasMeanCommand { get; }
        public ICommand QueryMeasMaxCommand { get; }
        public ICommand QueryScopeIdnCommand { get; }
        public ICommand ClearScopeErrorsCommand { get; }
        public ICommand ReadScopeErrorsCommand { get; }
        #endregion

        public PowerAdaptabilityViewModel(IContainerProvider containerProvider) : base(containerProvider)
        {
            _dm = containerProvider.Resolve<DeviceManager>();
            _globalInfo = containerProvider.Resolve<GlobalInfo>();

            // 初始化测试项文件目录（首次运行迁移内置预设），再从磁盘加载测试项
            EnsurePresetStorage();
            RefreshPresets();

            // 初始化合成波形文件目录（首次运行迁移内置示例），再从磁盘加载波形
            EnsureSynthStorage();
            RefreshSynthPresets();

            // 恢复上次设置的波形图片存储位置
            LoadScopeImageDir();

            #region 命令初始化
            QueryIdnCommand = new DelegateCommand(async () =>
                await Exec(async () => Log("IDN: " + await _dev!.查询设备信息Async(Ct()))));

            ResetCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.复位Async(Ct()); Log("设备已复位"); }));

            ExitRemoteCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.退出远程Async(Ct()); Log("已发送退出远程 SYST:LOC，前面板应恢复可用（手册注明僅 RS-232 下有效）"); }));

            OutputOnCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.设置输出开关Async(true, Ct()); Log("输出已开启"); }));

            OutputOffCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.设置输出开关Async(false, Ct()); Log("输出已关闭"); }));

            RelayOnCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.设置输出继电器Async(true, Ct()); Log("输出继电器已开启"); }));

            RelayOffCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.设置输出继电器Async(false, Ct()); Log("输出继电器已关闭"); }));

            ApplyCouplingCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.设置耦合模式Async(CouplingMode, Ct()); Log($"耦合模式={CouplingMode}"); }));

            SetThreePhaseModeCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.设置单三相模式Async(true, Ct()); Log("已切换为三相模式"); }));

            SetSinglePhaseModeCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.设置单三相模式Async(false, Ct()); Log("已切换为单相模式"); }));

            ApplyRelationCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.设置三相关系Async(ThreePhaseRelation, Ct()); Log($"三相关系={ThreePhaseRelation}"); }));

            SetVoltageCommand = new DelegateCommand(async () =>
                await Exec(async () =>
                {
                    await ApplyPhaseAsync();
                    await _dev!.设置交流电压Async(Voltage, Ct());
                    Log($"交流电压={Voltage} V → {PhaseLabel}");
                }));

            SetFrequencyCommand = new DelegateCommand(async () =>
                await Exec(async () =>
                {
                    await ApplyPhaseAsync();
                    await _dev!.设置频率Async(Frequency, Ct());
                    Log($"输出频率={Frequency} Hz → {PhaseLabel}");
                }));

            SetWaveformCommand = new DelegateCommand(async () =>
                await Exec(async () =>
                {
                    await ApplyPhaseAsync();
                    await _dev!.设置波形Async(Waveform, Ct());
                    Log($"波形={Waveform} → {PhaseLabel}");
                }));

            SetFixedModeCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.设置操作模态Async("FIXED", Ct()); Log("已切换为 FIXED 固定模式"); }));

            EnterListModeCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.设置操作模态Async("LIST", Ct()); Log("已切换为 LIST 模式"); }));

            // 载入测试项：把选中测试项的三相序列与基础参数一次性填充到界面
            LoadPresetCommand = new DelegateCommand(() =>
            {
                if (SelectedPresetIndex < 0 || SelectedPresetIndex >= Presets.Count)
                {
                    Log("请先在下拉框选择一项测试项");
                    return;
                }
                var p = Presets[SelectedPresetIndex];
                ListCount = p.Count;
                ListTrigger = p.Trigger;
                ListTimeBase = p.TimeBase;
                // 旧测试项文件没有相位连续键（PhaseContinue 为 null）时保持界面当前值不动
                if (!string.IsNullOrWhiteSpace(p.PhaseContinue))
                    ListPhaseContinue = p.PhaseContinue;
                for (int i = 0; i < 3 && i < p.Phases.Length; i++)
                    _phaseConfigs[i] = p.Phases[i].Clone();

                ListEditPhaseIndex = 0;   // 切到 A 相显示（若原本就是 0，setter 不触发刷新，故下方手动刷新）
                RaiseListSequenceChanged();
                PresetName = p.Name;      // 名称框回显当前文件名
                PresetNote = p.Note;
                _currentPresetPath = PresetPathOf(p.Name);   // 记住当前打开的文件，此后“保存”只覆盖它
                Log($"已载入测试项：{p.Name}（次数={(p.Count == 0 ? "无限" : p.Count.ToString())} 触发={p.Trigger} 时基={p.TimeBase} 相位连续={p.PhaseContinue ?? "未指定(保持当前)"}）");
            });

            // 保存：覆盖当前打开的测试项文件（未打开文件时按“另存为”新建）
            SavePresetCommand = new DelegateCommand(SaveCurrentPreset);

            // 另存为：以“名称”框内容为新文件名新建文件，不修改当前打开的文件
            SavePresetAsCommand = new DelegateCommand(SaveCurrentPresetAs);

            // 删除当前选中的测试项文件（带二次确认）
            DeletePresetCommand = new DelegateCommand(DeleteCurrentPreset);

            // 以当前编辑相位为模板复制到三相，B/C 相相位角按 ±120° 自动偏移，生成对称三相序列
            CopyPhaseToThreeCommand = new DelegateCommand(() =>
            {
                var src = _phaseConfigs[_listEditPhaseIndex];
                for (int p = 0; p < 3; p++)
                {
                    if (p == _listEditPhaseIndex) continue;
                    var clone = src.Clone();
                    clone.Degr = OffsetDegr(src.Degr, (p - _listEditPhaseIndex) * 120.0);
                    _phaseConfigs[p] = clone;
                }
                RaiseListSequenceChanged();
                Log($"已将 [{ListPhaseOptions[_listEditPhaseIndex]}] 序列复制到三相（B/C 相相位角自动 ±120° 偏移）");
            });

            // 一次性下发三相独立 LIST 并启动，严格遵循仪器要求的命令顺序
            DownloadThreePhaseListCommand = new DelegateCommand(async () => await Exec(async () =>
            {
                // 若上一次 LIST 仍在执行，先等待其结束（TRIG:STATE? = OFF）再改写参数
                await 等待List空闲Async();

                await _dev!.清除错误队列Async(Ct());                 // *CLS
                await _dev.设置单三相模式Async(true, Ct());           // INST:PHAS THREE
                await _dev.设置编辑方式Async("EACH", Ct());           // INST:EDIT EACH（逐相独立编辑）

                for (int p = 0; p < 3; p++)
                {
                    await _dev.选择相位Async(p + 1, Ct());            // INST:NSEL 1|2|3
                    // COUN/TRIG/BASE 在 EACH 逐相编辑模式下随相位上下文分相：必须在每相 NSEL 之后各发一次，
                    // 否则未选中的相 COUN 保持默认 0（无限循环），表现为“设了次数仍一直执行”
                    await _dev.设置列表执行次数Async(ListCount, Ct());    // LIST:COUN（0=无限循环）
                    await _dev.设置列表触发形态Async(ListTrigger, Ct());  // LIST:TRIG
                    await _dev.设置列表时间基础Async(ListTimeBase, Ct()); // LIST:BASE
                    await _dev.设置列表相位连续Async(ListPhaseContinue, Ct()); // LIST:PHAS:CONT（相位连续，随相位上下文分相）
                    await 下发单相序列Async(_phaseConfigs[p]);        // LIST:xxx 序列
                }

                await _dev.设置操作模态Async("LIST", Ct());           // OUTP:MODE LIST

                // 回读校验：确认 COUN 真的写入（当前相位上下文=相3）；读回 0 而设>0 即未生效
                int counBack = await _dev.查询列表执行次数Async(Ct());
                await _dev.触发列表执行Async(true, Ct());             // TRIG ON

                Log($"三相独立 LIST 已下发并启动（触发={ListTrigger} 次数={(ListCount == 0 ? "无限" : ListCount.ToString())} 时基={ListTimeBase}；回读COUN={counBack}）");
            }));

            ListStopCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.触发列表执行Async(false, Ct()); Log("LIST 已停止执行（TRIG OFF）"); }));

            // 下发 SYNTHESIS 自定义谐波波形并启动（三相独立）：INST:EDIT EACH + NSEL 逐相下发，
            // 谐波内容三相相同（复制到三相生成），仅起始相位按 ±120° 对称；手册要求进入 SYNTH 前先离开输出
            DownloadSynthesisCommand = new DelegateCommand(async () => await Exec(async () =>
            {
                // 先强制 TRIG OFF 停止连续执行模态并等状态回 OFF，再改写参数（执行中改写会被仪器忽略）
                await 等待List空闲Async();

                await _dev!.清除错误队列Async(Ct());                       // *CLS
                await _dev.设置输出开关Async(false, Ct());                 // OUTP OFF（进入 SYNTH 前先离开输出）
                await _dev.设置操作模态Async("FIXED", Ct());               // OUTP:MODE FIXED（清模态）
                await _dev.设置单三相模式Async(true, Ct());                // INST:PHAS THREE
                await _dev.设置编辑方式Async("EACH", Ct());                // INST:EDIT EACH（逐相独立编辑，缺此步无法分相）

                for (int p = 0; p < 3; p++)
                {
                    await _dev.选择相位Async(p + 1, Ct());                 // INST:NSEL 1|2|3
                    await _dev.设置合成数据格式Async(SynthCompose, Ct());       // SYNT:COMP（EACH 模式随相位上下文生效，逐相各发一次）
                    await _dev.设置合成基频Async(SynthFrequency, Ct());         // SYNT:FREQ
                    await _dev.设置合成基波电压Async(SynthFundamental, Ct());   // SYNT:FUND
                    await _dev.设置合成直流电压Async(SynthDc, Ct());           // SYNT:DC
                    await _dev.设置合成起始相位Async(_synthStartPhases[p], Ct()); // SYNT:SPH（分相参数，三相 ±120° 对称）
                    var ampl = ParseDoubles(_synthAmplitudeTexts[p]);
                    if (ampl.Length > 0) await _dev.设置合成谐波振幅Async(ampl, Ct());      // SYNT:AMPL
                    var phas = ParseDoubles(_synthPhaseTexts[p]);
                    if (phas.Length > 0) await _dev.设置合成谐波相位Async(phas, Ct());      // SYNT:PHAS
                }

                // 回读校验：逐相回读起始相位确认 ±120° 偏移真实写入（读回与界面不符=被拒绝）
                string compBack = await _dev.查询合成数据格式Async(Ct());
                double fundBack = await _dev.查询合成基波电压Async(Ct());
                var sphBack = new List<string>();
                for (int p = 0; p < 3; p++)
                {
                    await _dev.选择相位Async(p + 1, Ct());                 // INST:NSEL
                    double sph = await _dev.查询合成起始相位Async(Ct());
                    sphBack.Add($"{ListPhaseOptions[p].Substring(0, 1)}={sph:0.#}°");
                }
                double[] amplBack = await _dev.查询合成谐波振幅Async(Ct());
                Log($"回读校验：COMP 设={SynthCompose} 读={compBack}；FUND 设={SynthFundamental} 读={fundBack}；SPH {string.Join(" ", sphBack)}；AMPL 回读{amplBack.Length}阶(仪器实际保留的阶数，当前上下文=C相)，前6阶={string.Join(",", amplBack.Take(6))}");

                await _dev.设置操作模态Async("SYNTH", Ct());                // OUTP:MODE SYNTH
                await _dev.触发列表执行Async(true, Ct());                   // TRIG ON

                double vrms = await _dev.读取交流电压Async(Ct());            // MEAS:VOLT:AC? 实测输出
                Log($"SYNTHESIS 三相波形已下发并启动（格式={SynthCompose} 基频={SynthFrequency}Hz 基波={SynthFundamental}V 谐波阶数={ParseDoubles(_synthAmplitudeTexts[_synthEditPhaseIndex]).Length}）实测Vrms={vrms}");
            }));

            SynthStopCommand = new DelegateCommand(async () =>
                await Exec(async () => { await _dev!.触发列表执行Async(false, Ct()); Log("SYNTHESIS 已停止执行（TRIG OFF）"); }));

            // 重置谐波：SYNT 数组首值对应 2 次谐波，仪器谐波范围 2~50 阶共 49 个值（填 50 个则末值落到不存在的 51 阶，可能被拒或截断）
            // （仅改界面文本，需再点「下发并启动 SYNTH」才写入仪器）
            ResetSynthHarmonicsCommand = new DelegateCommand(() =>
            {
                string zeros = string.Join(",", Enumerable.Repeat("0", 49));
                SynthAmplitudeText = zeros;
                SynthPhaseText = zeros;
                Log("SYNTHESIS 谐波已重置：振幅/相位两框均填入 49 个 0（覆盖 2~50 阶）；点「下发并启动 SYNTH」写入仪器");
            });

            // 复制当前相到三相：谐波内容相同，起始相位按 ±120° 偏移生成对称三相（与 LIST 复制同机制，仅改界面数据）
            CopySynthPhaseToThreeCommand = new DelegateCommand(() =>
            {
                int src = _synthEditPhaseIndex;
                for (int p = 0; p < 3; p++)
                {
                    if (p == src) continue;
                    _synthAmplitudeTexts[p] = _synthAmplitudeTexts[src];
                    _synthPhaseTexts[p] = _synthPhaseTexts[src];
                    double d = (_synthStartPhases[src] + (p - src) * 120.0) % 360.0;
                    if (d < 0) d += 360.0;
                    _synthStartPhases[p] = d;
                }
                Log($"已将 [{ListPhaseOptions[src]}] 的 SYNTHESIS 参数复制到三相（起始相位自动 ±120° 偏移，谐波内容相同）；点「下发并启动 SYNTH」写入仪器");
            });

            // 合成波形的载入 / 保存 / 另存为 / 删除（与 LIST 测试项同机制，文件存于 D:\acp\源测试\合成波形）
            LoadSynthPresetCommand = new DelegateCommand(LoadCurrentSynthPreset);
            SaveSynthPresetCommand = new DelegateCommand(SaveCurrentSynthPreset);
            SaveSynthPresetAsCommand = new DelegateCommand(SaveCurrentSynthPresetAs);
            DeleteSynthPresetCommand = new DelegateCommand(DeleteCurrentSynthPreset);

            // 示波器抓图：抓取当前屏幕保存为 PNG 到存储位置（图片区不自动显示，改由 LIST / SYNTHESIS 按钮按配置文件名加载）
            CaptureScopeImageCommand = new DelegateCommand(async () => await ExecScope(async () =>
            {
                if (string.IsNullOrWhiteSpace(ScopeImageDir))
                {
                    Log("请先设置波形图片存储位置");
                    return;
                }

                SaveScopeImageDir();                                       // 记住本次使用的存储位置
                Directory.CreateDirectory(ScopeImageDir);
                string file = Path.Combine(ScopeImageDir, $"屏幕_{DateTime.Now:yyyyMMdd_HHmmss_fff}.png");

                await _scope!.保存屏幕截图(file, Ct());                     // SAVe:IMAGe → *OPC? → READFile → 写盘

                Log($"示波器屏幕图片已抓取：{file}");
            }));

            // 浏览选择波形图片存储位置（选择后立即记住）
            BrowseScopeImageDirCommand = new DelegateCommand(() =>
            {
                var dlg = new OpenFolderDialog
                {
                    Title = "选择波形图片存储位置",
                    InitialDirectory = Directory.Exists(ScopeImageDir) ? ScopeImageDir : PresetStorageDir,
                };
                if (dlg.ShowDialog() != true) return;   // 用户取消

                ScopeImageDir = dlg.FolderName;
                SaveScopeImageDir();
                Log($"波形图片存储位置已设置：{ScopeImageDir}");
            });

            // 按当前载入的配置文件查看对应波形截图：
            // LIST → {当前测试项文件名}.png；SYNTHESIS → {当前波形文件名}.png；找不到则清空图片区
            ShowListWaveImageCommand = new DelegateCommand(() => ShowWaveImage(_currentPresetPath, "LIST"));
            ShowSynthWaveImageCommand = new DelegateCommand(() => ShowWaveImage(_currentSynthPath, "SYNTHESIS"));

            // —— 采集控制 ——
            ScopeAcquireRunCommand = new DelegateCommand(async () =>
                await ExecScope(async () => { await _scope!.设置采集状态(true, Ct()); Log("示波器采集已启动 (RUN)"); }));

            // 停止采集定格画面后抓图，是最稳定的截图方式（截图抓的是当前屏幕画面）
            ScopeAcquireStopCommand = new DelegateCommand(async () =>
                await ExecScope(async () => { await _scope!.设置采集状态(false, Ct()); Log("示波器采集已停止 (STOP)，画面已定格；可点「抓取示波器屏幕图片」截取稳定波形"); }));

            QueryAcquireStateCommand = new DelegateCommand(async () =>
                await ExecScope(async () => Log("采集状态: " + await _scope!.查询采集状态(Ct()))));

            ApplyAcquireModeCommand = new DelegateCommand(async () =>
                await ExecScope(async () =>
                {
                    if (!Enum.TryParse<TekAcquisitionMode>(ScopeAcquireMode, out var mode))
                    {
                        Log($"未知采集模式：{ScopeAcquireMode}");
                        return;
                    }
                    await _scope!.设置采集模式(mode, Ct());
                    Log($"采集模式已设置：{mode}");
                }));

            // —— 水平系统 ——
            SetScopeTimeScaleCommand = new DelegateCommand(async () =>
                await ExecScope(async () => { await _scope!.设置水平刻度(ScopeTimeScale, Ct()); Log($"水平刻度={ScopeTimeScale} s/Div"); }));

            SetRecordLengthCommand = new DelegateCommand(async () =>
                await ExecScope(async () => { await _scope!.设置记录长度(ScopeRecordLength, Ct()); Log($"记录长度={ScopeRecordLength} 点"); }));

            QuerySampleRateCommand = new DelegateCommand(async () =>
                await ExecScope(async () =>
                {
                    double sr = await _scope!.查询采样率(Ct());
                    SampleRateText = $"{sr:0.###} Sa/s";
                    Log($"采样率={sr} Sa/s");
                }));

            // —— 通道设置 ——
            ChannelDisplayOnCommand = new DelegateCommand(async () =>
                await ExecScope(async () => { await _scope!.设置通道显示开关(ScopeChannelNo, true, Ct()); Log($"{ScopeChannelOptions[SelectedScopeChannelIndex]} 显示已开启"); }));

            ChannelDisplayOffCommand = new DelegateCommand(async () =>
                await ExecScope(async () => { await _scope!.设置通道显示开关(ScopeChannelNo, false, Ct()); Log($"{ScopeChannelOptions[SelectedScopeChannelIndex]} 显示已关闭"); }));

            SetChannelScaleCommand = new DelegateCommand(async () =>
                await ExecScope(async () => { await _scope!.设置通道垂直刻度(ScopeChannelNo, ChannelScale, Ct()); Log($"{ScopeChannelOptions[SelectedScopeChannelIndex]} 垂直刻度={ChannelScale} V/Div"); }));

            SetChannelPositionCommand = new DelegateCommand(async () =>
                await ExecScope(async () => { await _scope!.设置通道垂直位置(ScopeChannelNo, ChannelPosition, Ct()); Log($"{ScopeChannelOptions[SelectedScopeChannelIndex]} 垂直位置={ChannelPosition} Div"); }));

            // —— 自动测量：开启测量项 + 类型/源一次完成（4/5/6 系必须先 ADDNew 动态创建） ——
            AddMeasurementCommand = new DelegateCommand(async () =>
                await ExecScope(async () =>
                {
                    if (!Enum.TryParse<TekMeasurementType>(MeasurementType, out var type))
                    {
                        Log($"未知测量类型：{MeasurementType}");
                        return;
                    }
                    await _scope!.开启测量项(MeasurementNumber, Ct());
                    await _scope.设置测量类型(MeasurementNumber, type, Ct());
                    await _scope.设置测量源(MeasurementNumber, MeasurementSource, Ct());
                    Log($"测量项 MEAS{MeasurementNumber} 已开启：{type} @ {MeasurementSource}");
                }));

            QueryMeasCurrentCommand = new DelegateCommand(async () =>
                await ExecScope(async () =>
                {
                    double v = await _scope!.查询测量项当前值(MeasurementNumber, Ct());
                    MeasResultText = $"MEAS{MeasurementNumber} 当前值: {v}";
                    Log(MeasResultText);
                }));

            QueryMeasMeanCommand = new DelegateCommand(async () =>
                await ExecScope(async () =>
                {
                    double v = await _scope!.查询测量项全局平均值(MeasurementNumber, Ct());
                    MeasResultText = $"MEAS{MeasurementNumber} 全局均值: {v}";
                    Log(MeasResultText);
                }));

            QueryMeasMaxCommand = new DelegateCommand(async () =>
                await ExecScope(async () =>
                {
                    double v = await _scope!.查询测量项全局最大值(MeasurementNumber, Ct());
                    MeasResultText = $"MEAS{MeasurementNumber} 全局最大: {v}";
                    Log(MeasResultText);
                }));

            // —— 设备辅助 ——
            QueryScopeIdnCommand = new DelegateCommand(async () =>
                await ExecScope(async () => Log("示波器 IDN: " + await _scope!.查询设备标识(Ct()))));

            ClearScopeErrorsCommand = new DelegateCommand(async () =>
                await ExecScope(async () => { await _scope!.清除错误队列Async(Ct()); Log("示波器错误队列已清除 (*CLS)"); }));

            ReadScopeErrorsCommand = new DelegateCommand(async () =>
                await ExecScope(async () => Log("示波器错误队列: " + await _scope!.读取所有错误消息Async(Ct()))));
            #endregion

            Initialize();
        }

        #region 初始化 / 导航
        /// <summary>
        /// 查找 Chroma61800 设备实例：优先当前作用域 DeviceManager，回退全局 HardwarePool（跨作用域共享实例）。
        /// </summary>
        private void Initialize()
        {
            Chroma61800? found = null;
            string? fn = null;

            foreach (var kv in _dm.DeviceMap)
            {
                if (kv.Value is Chroma61800 it) { found = it; fn = kv.Key; break; }
            }

            if (found == null)
            {
                foreach (var kv in _globalInfo.HardwarePool)
                {
                    if (kv.Value.IsValueCreated && kv.Value.Value is Chroma61800 c) { found = c; fn = kv.Key; break; }
                }
            }

            _dev = found;
            DeviceName = fn ?? "Chroma61800 (未找到)";
            IsConnected = _dev?.IsConnected ?? false;

            Log(found != null
                ? $"已关联设备 [{DeviceName}]，连接:{(IsConnected ? "已连接" : "未连接")}"
                : "未找到 Chroma61800 设备，请先在设置界面添加并启用该设备");

            // 示波器实例：查找方式与交流源一致（DeviceMap 优先，回退全局 HardwarePool）
            TektronixMSO? scopeFound = null;
            string? sfn = null;

            foreach (var kv in _dm.DeviceMap)
            {
                if (kv.Value is TektronixMSO s) { scopeFound = s; sfn = kv.Key; break; }
            }

            if (scopeFound == null)
            {
                foreach (var kv in _globalInfo.HardwarePool)
                {
                    if (kv.Value.IsValueCreated && kv.Value.Value is TektronixMSO s) { scopeFound = s; sfn = kv.Key; break; }
                }
            }

            _scope = scopeFound;
            ScopeName = sfn ?? "TektronixMSO (未找到)";
            IsScopeConnected = _scope?.IsConnected ?? false;

            if (scopeFound != null)
                Log($"已关联示波器 [{ScopeName}]，连接:{(IsScopeConnected ? "已连接" : "未连接")}");
        }

        public override void OnNavigatedTo(NavigationContext navigationContext)
        {
            Initialize();
        }

        public override void OnNavigatedFrom(NavigationContext navigationContext)
        {
        }
        #endregion

        #region 测试项文件读写（D:\acp\源测试）
        /// <summary>
        /// 确保测试项目录存在；若目录中尚无任何测试项文件，则把内置大纲预设迁移写入为 .json 文件。
        /// </summary>
        private void EnsurePresetStorage()
        {
            try
            {
                if (!Directory.Exists(PresetStorageDir))
                    Directory.CreateDirectory(PresetStorageDir);

                var existing = Directory.GetFiles(PresetStorageDir, "*" + PresetFileExt);
                if (existing.Length > 0) return;   // 已有测试项文件，无需迁移

                // 首次运行：把内置大纲预设逐项迁移为文件
                var seeds = BuildPresets();
                foreach (var p in seeds)
                    WritePresetFile(p);

                Log($"已将 {seeds.Count} 项内置测试项迁移到 {PresetStorageDir}");
            }
            catch (Exception ex)
            {
                Log($"初始化测试项目录失败：{ex.Message}");
            }
        }

        /// <summary>从磁盘重新加载测试项列表，刷新下拉框并按名称恢复选中项。</summary>
        private void RefreshPresets()
        {
            // 刷新前记住选中项名称：列表重建后索引会漂移，按名称恢复最可靠
            string? selectedName = (_selectedPresetIndex >= 0 && _selectedPresetIndex < _presets.Count)
                ? _presets[_selectedPresetIndex].Name
                : null;

            var list = new List<ListPreset>();
            try
            {
                if (Directory.Exists(PresetStorageDir))
                {
                    foreach (var file in Directory.GetFiles(PresetStorageDir, "*" + PresetFileExt).OrderBy(f => f))
                    {
                        try
                        {
                            var json = File.ReadAllText(file);
                            var item = JsonConvert.DeserializeObject<ListPreset>(json);
                            if (item != null) list.Add(NormalizePresetName(item, file));
                        }
                        catch (Exception ex)
                        {
                            Log($"测试项文件解析失败 [{Path.GetFileName(file)}]：{ex.Message}");
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Log($"读取测试项目录失败：{ex.Message}");
            }

            _presets = list;
            _presetOptions = list.Select(p => p.Name).ToList();
            RaisePropertyChanged(nameof(PresetOptions));
            RaisePropertyChanged(nameof(PresetStorageHint));

            SelectedPresetIndex = selectedName != null
                ? _presets.FindIndex(p => p.Name == selectedName)
                : -1;
        }

        /// <summary>
        /// 以磁盘文件名校正测试项名称：文件被外部改名后内容中的 Name 仍是旧名，
        /// 统一改为文件名（不含扩展名），保证“名称=文件名”不变式，载入/保存/删除都按同一名称寻址。
        /// </summary>
        private static ListPreset NormalizePresetName(ListPreset item, string file)
        {
            string stem = Path.GetFileNameWithoutExtension(file);
            return string.Equals(item.Name, stem, StringComparison.Ordinal)
                ? item
                : new ListPreset(stem, item.Note, item.Count, item.Phases, item.Trigger, item.TimeBase, item.PhaseContinue);
        }

        /// <summary>按名称拼出测试项文件完整路径（写入、另存、删除共用同一规则）。</summary>
        private static string PresetPathOf(string name) => Path.Combine(PresetStorageDir, SanitizeFileName(name) + PresetFileExt);

        /// <summary>把一个测试项写入 D:\acp\源测试\{清洗后名称}.json（缩进格式化，便于人工查看）。</summary>
        private static void WritePresetFile(ListPreset preset) => WritePresetFile(preset, PresetPathOf(preset.Name));

        /// <summary>把测试项写入指定文件（覆盖写入）。</summary>
        private static void WritePresetFile(ListPreset preset, string path)
        {
            string json = JsonConvert.SerializeObject(preset, Formatting.Indented);
            File.WriteAllText(path, json);
        }

        /// <summary>用当前界面参数 + 三相配置快照构建测试项对象（内容名称始终与文件名一致）。</summary>
        private ListPreset SnapshotPreset(string name) => new(
            name,
            PresetNote ?? "",
            ListCount,
            new[] { _phaseConfigs[0].Clone(), _phaseConfigs[1].Clone(), _phaseConfigs[2].Clone() },
            ListTrigger,
            ListTimeBase,
            ListPhaseContinue);

        /// <summary>
        /// 保存：覆盖写入“当前打开的文件”，不改变文件名（名称框内容不参与）。
        /// <para>尚未打开任何文件时，退化为“另存为”，用名称框内容新建文件。</para>
        /// </summary>
        private void SaveCurrentPreset()
        {
            if (string.IsNullOrEmpty(_currentPresetPath))
            {
                SaveCurrentPresetAs();
                return;
            }

            // 内容名称以当前文件名为准，保证“名称=文件名”不变式
            string name = Path.GetFileNameWithoutExtension(_currentPresetPath);
            string typed = (PresetName ?? "").Trim();
            if (!string.IsNullOrEmpty(typed) && !string.Equals(typed, name, StringComparison.Ordinal))
                Log($"名称框内容 [{typed}] 未用于保存：保存只覆盖当前文件，如需换名请用“另存为”");

            try
            {
                Directory.CreateDirectory(PresetStorageDir);
                WritePresetFile(SnapshotPreset(name), _currentPresetPath);

                RefreshPresets();
                SelectedPresetIndex = _presets.FindIndex(p => p.Name == name);
                PresetName = name;   // 名称框回显当前文件名
                Log($"测试项已保存（覆盖）：{_currentPresetPath}");
            }
            catch (Exception ex)
            {
                Log($"保存测试项失败：{ex.Message}");
            }
        }

        /// <summary>
        /// 另存为：弹出文件对话框选择 .json 保存位置，成功后“当前打开文件”切换到新文件。
        /// <para>存入预设目录（D:\acp\源测试）内会自动出现在下拉列表；存到目录外则仅本次会话可用“保存”覆盖，
        /// 对话框自身的“是否替换”提示已覆盖同名覆盖确认。</para>
        /// </summary>
        private void SaveCurrentPresetAs()
        {
            var dlg = new SaveFileDialog
            {
                Title = "测试项另存为",
                Filter = "JSON 文件 (*.json)|*.json",
                DefaultExt = ".json",
                AddExtension = true,
                InitialDirectory = PresetStorageDir,
                FileName = SanitizeFileName((PresetName ?? "").Trim()),
            };
            if (dlg.ShowDialog() != true) return;   // 用户取消

            try
            {
                string path = dlg.FileName;
                string name = Path.GetFileNameWithoutExtension(path);   // 内容名称始终与文件名一致
                WritePresetFile(SnapshotPreset(name), path);

                _currentPresetPath = path;   // 另存为成功后，后续“保存”直接修改这个新文件
                RefreshPresets();
                SelectedPresetIndex = _presets.FindIndex(p => p.Name == name);
                PresetName = name;

                Log(Path.GetDirectoryName(path) is string dir && string.Equals(dir, PresetStorageDir, StringComparison.OrdinalIgnoreCase)
                    ? $"测试项已另存为：{path}"
                    : $"测试项已另存为：{path}（在预设目录之外，不会出现在下拉列表，“保存”仍可覆盖此文件）");
            }
            catch (Exception ex)
            {
                Log($"另存测试项失败：{ex.Message}");
            }
        }

        /// <summary>
        /// 删除当前选中的测试项文件（带二次确认），删除后刷新列表。
        /// </summary>
        private void DeleteCurrentPreset()
        {
            if (SelectedPresetIndex < 0 || SelectedPresetIndex >= _presets.Count)
            {
                Log("请先在下拉框选择要删除的测试项");
                return;
            }

            var p = _presets[SelectedPresetIndex];
            string path = Path.Combine(PresetStorageDir, SanitizeFileName(p.Name) + PresetFileExt);

            var confirm = MessageBox.Show(
                $"确定删除测试项「{p.Name}」？\n文件：{path}\n此操作不可撤销。",
                "删除确认", MessageBoxButton.YesNo, MessageBoxImage.Warning);
            if (confirm != MessageBoxResult.Yes) return;

            try
            {
                if (File.Exists(path))
                    File.Delete(path);

                if (string.Equals(path, _currentPresetPath, StringComparison.OrdinalIgnoreCase))
                    _currentPresetPath = null;   // 当前打开的文件已被删除，解除绑定

                SelectedPresetIndex = -1;
                RefreshPresets();
                Log($"已删除测试项：{path}");
            }
            catch (Exception ex)
            {
                Log($"删除测试项失败：{ex.Message}");
            }
        }

        /// <summary>清洗文件名中的非法字符（Windows），空白名回退为“未命名”。</summary>
        private static string SanitizeFileName(string name)
        {
            if (string.IsNullOrWhiteSpace(name)) return "未命名";
            foreach (char c in Path.GetInvalidFileNameChars())
                name = name.Replace(c, '_');
            return name.Trim();
        }
        #endregion

        #region SYNTHESIS 波形文件读写（D:\acp\源测试\合成波形）
        /// <summary>
        /// 确保合成波形目录存在（波形 .json 一律由用户自行编写或界面保存，不再自动生成内置示例）。
        /// </summary>
        private void EnsureSynthStorage()
        {
            try
            {
                if (!Directory.Exists(SynthStorageDir))
                    Directory.CreateDirectory(SynthStorageDir);
            }
            catch (Exception ex)
            {
                Log($"初始化合成波形目录失败：{ex.Message}");
            }
        }

        /// <summary>从磁盘重新加载合成波形预设列表，刷新下拉框并按名称恢复选中项。</summary>
        private void RefreshSynthPresets()
        {
            // 刷新前记住选中项名称：列表重建后索引会漂移，按名称恢复最可靠
            string? selectedName = (_selectedSynthPresetIndex >= 0 && _selectedSynthPresetIndex < _synthPresets.Count)
                ? _synthPresets[_selectedSynthPresetIndex].Name
                : null;

            var list = new List<SynthPreset>();
            try
            {
                if (Directory.Exists(SynthStorageDir))
                {
                    foreach (var file in Directory.GetFiles(SynthStorageDir, "*" + PresetFileExt).OrderBy(f => f))
                    {
                        try
                        {
                            var json = File.ReadAllText(file);
                            var item = JsonConvert.DeserializeObject<SynthPreset>(json);
                            if (item != null) list.Add(NormalizeSynthPresetName(item, file));
                        }
                        catch (Exception ex)
                        {
                            Log($"波形文件解析失败 [{Path.GetFileName(file)}]：{ex.Message}");
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Log($"读取波形目录失败：{ex.Message}");
            }

            _synthPresets = list;
            _synthPresetOptions = list.Select(p => p.Name).ToList();
            RaisePropertyChanged(nameof(SynthPresetOptions));
            RaisePropertyChanged(nameof(SynthStorageHint));

            SelectedSynthPresetIndex = selectedName != null
                ? _synthPresets.FindIndex(p => p.Name == selectedName)
                : -1;
        }

        /// <summary>以磁盘文件名校正波形名称（同 <see cref="NormalizePresetName"/> 的“名称=文件名”不变式）。</summary>
        private static SynthPreset NormalizeSynthPresetName(SynthPreset item, string file)
        {
            string stem = Path.GetFileNameWithoutExtension(file);
            return string.Equals(item.Name, stem, StringComparison.Ordinal)
                ? item
                : new SynthPreset(stem, item.Note, item.Compose, item.Frequency, item.Fundamental,
                                  item.Dc, item.StartPhase, item.AmplitudeText, item.PhaseText);
        }

        /// <summary>按名称拼出合成波形文件完整路径（写入、另存、删除共用同一规则）。</summary>
        private static string SynthPathOf(string name) => Path.Combine(SynthStorageDir, SanitizeFileName(name) + PresetFileExt);

        /// <summary>把一个合成波形预设写入 {SynthStorageDir}\{清洗后名称}.json（缩进格式化）。</summary>
        private static void WriteSynthPresetFile(SynthPreset preset) => WriteSynthPresetFile(preset, SynthPathOf(preset.Name));

        /// <summary>把合成波形预设写入指定文件（覆盖写入）。</summary>
        private static void WriteSynthPresetFile(SynthPreset preset, string path)
        {
            string json = JsonConvert.SerializeObject(preset, Formatting.Indented);
            File.WriteAllText(path, json);
        }

        /// <summary>用当前界面参数快照构建波形预设对象（内容名称始终与文件名一致）。</summary>
        private SynthPreset SnapshotSynthPreset(string name) => new(
            name, SynthPresetNote ?? "", SynthCompose, SynthFrequency,
            SynthFundamental, SynthDc, SynthStartPhase, SynthAmplitudeText, SynthPhaseText);

        /// <summary>载入选中波形：把文件参数一次性回填到界面各 SYNTHESIS 输入框。</summary>
        private void LoadCurrentSynthPreset()
        {
            if (SelectedSynthPresetIndex < 0 || SelectedSynthPresetIndex >= _synthPresets.Count)
            {
                Log("请先在下拉框选择一项波形");
                return;
            }
            var p = _synthPresets[SelectedSynthPresetIndex];
            SynthCompose = p.Compose;
            SynthFrequency = p.Frequency;
            SynthFundamental = p.Fundamental;
            SynthDc = p.Dc;
            SynthStartPhase = p.StartPhase;
            SynthAmplitudeText = p.AmplitudeText;
            SynthPhaseText = p.PhaseText;
            SynthPresetName = p.Name;
            SynthPresetNote = p.Note;
            _currentSynthPath = SynthPathOf(p.Name);   // 记住当前打开的文件，此后“保存”只覆盖它
            Log($"已载入波形：{p.Name}（格式={p.Compose} 基频={p.Frequency}Hz 基波={p.Fundamental}V）");
        }

        /// <summary>
        /// 保存：覆盖写入“当前打开的文件”，不改变文件名（名称框内容不参与）。
        /// <para>尚未打开任何文件时，退化为“另存为”，用名称框内容新建文件。</para>
        /// </summary>
        private void SaveCurrentSynthPreset()
        {
            if (string.IsNullOrEmpty(_currentSynthPath))
            {
                SaveCurrentSynthPresetAs();
                return;
            }

            // 内容名称以当前文件名为准，保证“名称=文件名”不变式
            string name = Path.GetFileNameWithoutExtension(_currentSynthPath);
            string typed = (SynthPresetName ?? "").Trim();
            if (!string.IsNullOrEmpty(typed) && !string.Equals(typed, name, StringComparison.Ordinal))
                Log($"名称框内容 [{typed}] 未用于保存：保存只覆盖当前文件，如需换名请用“另存为”");

            try
            {
                Directory.CreateDirectory(SynthStorageDir);
                WriteSynthPresetFile(SnapshotSynthPreset(name), _currentSynthPath);

                RefreshSynthPresets();
                SelectedSynthPresetIndex = _synthPresets.FindIndex(p => p.Name == name);
                SynthPresetName = name;   // 名称框回显当前文件名
                Log($"波形已保存（覆盖）：{_currentSynthPath}");
            }
            catch (Exception ex)
            {
                Log($"保存波形失败：{ex.Message}");
            }
        }

        /// <summary>
        /// 另存为：弹出文件对话框选择 .json 保存位置，成功后“当前打开文件”切换到新文件。
        /// <para>存入预设目录（D:\acp\源测试\合成波形）内会自动出现在下拉列表；存到目录外则仅本次会话可用“保存”覆盖，
        /// 对话框自身的“是否替换”提示已覆盖同名覆盖确认。</para>
        /// </summary>
        private void SaveCurrentSynthPresetAs()
        {
            var dlg = new SaveFileDialog
            {
                Title = "波形另存为",
                Filter = "JSON 文件 (*.json)|*.json",
                DefaultExt = ".json",
                AddExtension = true,
                InitialDirectory = SynthStorageDir,
                FileName = SanitizeFileName((SynthPresetName ?? "").Trim()),
            };
            if (dlg.ShowDialog() != true) return;   // 用户取消

            try
            {
                string path = dlg.FileName;
                string name = Path.GetFileNameWithoutExtension(path);   // 内容名称始终与文件名一致
                WriteSynthPresetFile(SnapshotSynthPreset(name), path);

                _currentSynthPath = path;   // 另存为成功后，后续“保存”直接修改这个新文件
                RefreshSynthPresets();
                SelectedSynthPresetIndex = _synthPresets.FindIndex(p => p.Name == name);
                SynthPresetName = name;

                Log(Path.GetDirectoryName(path) is string dir && string.Equals(dir, SynthStorageDir, StringComparison.OrdinalIgnoreCase)
                    ? $"波形已另存为：{path}"
                    : $"波形已另存为：{path}（在预设目录之外，不会出现在下拉列表，“保存”仍可覆盖此文件）");
            }
            catch (Exception ex)
            {
                Log($"另存波形失败：{ex.Message}");
            }
        }

        /// <summary>删除当前选中的波形文件（带二次确认），删除后刷新列表。</summary>
        private void DeleteCurrentSynthPreset()
        {
            if (SelectedSynthPresetIndex < 0 || SelectedSynthPresetIndex >= _synthPresets.Count)
            {
                Log("请先在下拉框选择要删除的波形");
                return;
            }

            var p = _synthPresets[SelectedSynthPresetIndex];
            string path = Path.Combine(SynthStorageDir, SanitizeFileName(p.Name) + PresetFileExt);

            var confirm = MessageBox.Show(
                $"确定删除波形「{p.Name}」？\n文件：{path}\n此操作不可撤销。",
                "删除确认", MessageBoxButton.YesNo, MessageBoxImage.Warning);
            if (confirm != MessageBoxResult.Yes) return;

            try
            {
                if (File.Exists(path))
                    File.Delete(path);

                if (string.Equals(path, _currentSynthPath, StringComparison.OrdinalIgnoreCase))
                    _currentSynthPath = null;   // 当前打开的文件已被删除，解除绑定

                SelectedSynthPresetIndex = -1;
                RefreshSynthPresets();
                Log($"已删除波形：{path}");
            }
            catch (Exception ex)
            {
                Log($"删除波形失败：{ex.Message}");
            }
        }

        #endregion

        #region 示波器抓图（TektronixMSO）与存储位置持久化
        /// <summary>
        /// 示波器命令执行包装：与 Exec 同一防重入/异常日志机制，仅把设备校验对象换成示波器实例。
        /// </summary>
        private async Task ExecScope(Func<Task> action)
        {
            if (_scope == null) { Log("错误：未找到 TektronixMSO 示波器实例，请先在设置界面添加并启用该设备"); return; }
            if (IsBusy) return;

            IsBusy = true;
            try
            {
                await action();
                IsScopeConnected = _scope.IsConnected;
            }
            catch (OperationCanceledException) { Log("示波器命令超时或已取消"); }
            catch (Exception ex) { Log($"示波器错误：{ex.Message}"); }
            finally { IsBusy = false; }
        }

        /// <summary>
        /// 把指定的 PNG 加载为 BitmapImage 并刷新界面显示。
        /// <para>BitmapCacheOption.OnLoad 读完即释放文件句柄，不占用图片文件；Freeze 后跨线程安全。</para>
        /// </summary>
        /// <returns>加载成功返回 true；文件缺失/损坏返回 false（提示由调用方给）。</returns>
        private bool LoadScopeImage(string file)
        {
            try
            {
                var bmp = new BitmapImage();
                bmp.BeginInit();
                bmp.CacheOption = BitmapCacheOption.OnLoad;
                bmp.UriSource = new Uri(file, UriKind.Absolute);
                bmp.EndInit();
                bmp.Freeze();

                ScopeImage = bmp;
                HasScopeImage = true;
                return true;
            }
            catch (Exception ex)
            {
                Log($"加载截图失败：{ex.Message}");
                return false;
            }
        }

        /// <summary>清空图片区（没有对应波形截图时不显示任何图片）。</summary>
        private void ClearScopeImage()
        {
            ScopeImage = null;
            HasScopeImage = false;
        }

        /// <summary>
        /// 按“当前模式已载入配置文件的文件名（去扩展名）+ .png”在波形图片存储位置查找截图并显示。
        /// <para>LIST 模式取当前打开的测试项文件，SYNTHESIS 模式取当前打开的波形文件；
        /// 未载入配置或图片不存在时清空图片区，不显示任何图片。</para>
        /// </summary>
        private void ShowWaveImage(string? configPath, string mode)
        {
            if (string.IsNullOrWhiteSpace(ScopeImageDir))
            {
                ClearScopeImage();
                ScopeImageHint = "请先设置波形图片存储位置";
                Log("请先设置波形图片存储位置");
                return;
            }

            if (string.IsNullOrWhiteSpace(configPath))
            {
                ClearScopeImage();
                ScopeImageHint = $"请先载入 {mode} 配置文件，再查看对应波形图片";
                Log($"请先载入 {mode} 配置文件");
                return;
            }

            string stem = Path.GetFileNameWithoutExtension(configPath);   // 配置文件名去掉 .json 后缀
            string file = Path.Combine(ScopeImageDir, stem + ".png");

            if (!File.Exists(file))
            {
                ClearScopeImage();
                ScopeImageHint = $"未找到波形图片：{stem}.png";
                Log($"[{mode}] 未找到波形图片：{file}");
                return;
            }

            if (LoadScopeImage(file))
            {
                ScopeImageHint = $"{mode} 波形图片：{stem}.png";
                Log($"[{mode}] 已显示波形图片：{file}");
            }
            else
            {
                ClearScopeImage();
                ScopeImageHint = $"波形图片加载失败：{stem}.png";
            }
        }

        /// <summary>示波器截图目录配置文件路径（%AppData%\ACP\ScopeCaptureDir.json）。</summary>
        private static string ScopeDirConfigPath => Path.Combine(
            Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "ACP", "ScopeCaptureDir.json");

        /// <summary>启动时恢复上次设置的波形图片存储位置（配置缺失/损坏时保持默认目录）。</summary>
        private void LoadScopeImageDir()
        {
            try
            {
                if (File.Exists(ScopeDirConfigPath))
                {
                    var dir = JsonConvert.DeserializeObject<string>(File.ReadAllText(ScopeDirConfigPath));
                    if (!string.IsNullOrWhiteSpace(dir)) ScopeImageDir = dir;
                }
            }
            catch { /* 配置缺失或损坏时静默使用默认目录 */ }
        }

        /// <summary>把当前波形图片存储位置写入配置（抓图或浏览选择后调用）。</summary>
        private void SaveScopeImageDir()
        {
            try
            {
                Directory.CreateDirectory(Path.GetDirectoryName(ScopeDirConfigPath)!);
                File.WriteAllText(ScopeDirConfigPath, JsonConvert.SerializeObject(ScopeImageDir));
            }
            catch (Exception ex)
            {
                Log($"保存截图目录设置失败：{ex.Message}");
            }
        }
        #endregion

        #region 辅助
        /// <summary>创建 10 秒超时的取消令牌（命令用）。</summary>
        private CancellationToken Ct() => (_cmdCts = new CancellationTokenSource(TimeSpan.FromSeconds(10))).Token;

        /// <summary>当前选中相位的显示标签</summary>
        private string PhaseLabel => SelectedPhaseIndex switch
        {
            1 => "A相",
            2 => "B相",
            3 => "C相",
            _ => "ALL"
        };

        /// <summary>
        /// 根据 SelectedPhaseIndex 发送 INST:COUP / INST:NSEL 命令切换相位上下文。
        /// <para>索引 0 → INST:COUP ALL (三相同时)；索引 1~3 → INST:COUP NONE + INST:NSEL n</para>
        /// </summary>
        private async Task ApplyPhaseAsync()
        {
            if (SelectedPhaseIndex == 0)
            {
                await _dev!.设置相位耦合Async("ALL", Ct());
            }
            else
            {
                await _dev!.设置相位耦合Async("NONE", Ct());
                await _dev!.选择相位Async(SelectedPhaseIndex, Ct());
            }
        }

        /// <summary>统一的设备命令执行包装：防重入、异常捕获与日志。</summary>
        private async Task Exec(Func<Task> action)
        {
            if (_dev == null) { Log("错误：未找到 Chroma61800 设备实例，请检查设备配置"); return; }
            if (IsBusy) return;

            IsBusy = true;
            try
            {
                await action();
                IsConnected = _dev.IsConnected;
            }
            catch (OperationCanceledException) { Log("命令超时或已取消"); }
            catch (Exception ex) { Log($"错误：{ex.Message}"); }
            finally { IsBusy = false; }
        }

        /// <summary>线程安全的日志输出（自动切回 UI 线程，保留最近内容）。</summary>
        private void Log(string message)
        {
            var dispatcher = Application.Current?.Dispatcher;
            if (dispatcher != null && !dispatcher.CheckAccess())
            {
                _ = dispatcher.BeginInvoke(new Action(() => Log(message)));
                return;
            }

            var line = $"[{DateTime.Now:HH:mm:ss}] {message}";
            ResponseLog = ResponseLog.Length > 6000
                ? line + "\n" + ResponseLog[..4000]
                : line + "\n" + ResponseLog;
        }

        /// <summary>解析逗号/空格/分号分隔的数值序列。</summary>
        private static double[] ParseDoubles(string text)
        {
            if (string.IsNullOrWhiteSpace(text)) return Array.Empty<double>();
            return text.Split(new[] { ',', '，', ' ', '\t', ';' }, StringSplitOptions.RemoveEmptyEntries)
                       .Select(s => double.TryParse(s.Trim(), out double v) ? (double?)v : null)
                       .Where(v => v.HasValue)
                       .Select(v => v!.Value)
                       .ToArray();
        }

        /// <summary>解析波形顺序序列（形状名或 A/B）。</summary>
        private static string[] ParseShapes(string text)
        {
            if (string.IsNullOrWhiteSpace(text)) return Array.Empty<string>();
            return text.Split(new[] { ',', '，', ' ', '\t', ';' }, StringSplitOptions.RemoveEmptyEntries)
                       .Select(s => s.Trim().ToUpperInvariant())
                       .ToArray();
        }

        /// <summary>
        /// 下发单个相位的 LIST 序列（调用前须已通过 INST:NSEL 选定目标相、并已 INST:EDIT EACH）。
        /// <para>依次下发 DEGR / VOLT:AC / VOLT:DC / FREQ / DWEL / SHAP 各序列，留空的序列跳过；
        /// LIST:SHAP 各点可直接写形状名 SINE/SQUA/TRIAN/CSIN/DST01~30/USR01~30，也可引用仪器 A/B 波形组。</para>
        /// </summary>
        private async Task 下发单相序列Async(ListPhaseConfig cfg)
        {
            var degr = ParseDoubles(cfg.Degr);
            if (degr.Length > 0) await _dev!.设置列表相位角度顺序Async(degr, Ct());   // LIST:DEGR

            var vAcS = ParseDoubles(cfg.VoltAcStart);
            if (vAcS.Length > 0) await _dev!.设置列表AC起始电压顺序Async(vAcS, Ct());  // LIST:VOLT:AC:STAR
            var vAcE = ParseDoubles(cfg.VoltAcEnd);
            if (vAcE.Length > 0) await _dev!.设置列表AC结束电压顺序Async(vAcE, Ct());  // LIST:VOLT:AC:END

            var vDcS = ParseDoubles(cfg.VoltDcStart);
            if (vDcS.Length > 0) await _dev!.设置列表DC起始电压顺序Async(vDcS, Ct());  // LIST:VOLT:DC:STAR
            var vDcE = ParseDoubles(cfg.VoltDcEnd);
            if (vDcE.Length > 0) await _dev!.设置列表DC结束电压顺序Async(vDcE, Ct());  // LIST:VOLT:DC:END

            var fS = ParseDoubles(cfg.FreqStart);
            if (fS.Length > 0) await _dev!.设置列表起始频率顺序Async(fS, Ct());        // LIST:FREQ:STAR
            var fE = ParseDoubles(cfg.FreqEnd);
            if (fE.Length > 0) await _dev!.设置列表结束频率顺序Async(fE, Ct());        // LIST:FREQ:END

            var dwell = ParseDoubles(cfg.Dwell);
            if (dwell.Length > 0) await _dev!.设置列表静止时间顺序Async(dwell, Ct());  // LIST:DWEL

            var shapes = ParseShapes(cfg.ShapeSeq);
            if (shapes.Length > 0) await _dev!.设置列表波形顺序Async(shapes, Ct());    // LIST:SHAP
        }

        /// <summary>
        /// 轮询 TRIG:STATE? 等待当前 LIST 执行结束（返回 OFF），避免在执行过程中改写参数导致仪器报错。
        /// </summary>
        /// <param name="timeoutMs">最长等待时间（ms），超时后仍继续下发并给出提示</param>
        private async Task 等待List空闲Async(int timeoutMs = 8000)
        {
            if (_dev == null) return;
            // SYNTH / 无限 LIST 属连续执行模态，不会自行回到 OFF；必须先强制 TRIG OFF 停止，
            // 否则执行中改写参数会被仪器忽略（输出沿用本地已存波形）。
            try { await _dev.触发列表执行Async(false, Ct()); }
            catch { /* 停止失败不阻塞，继续靠轮询兜底 */ }
            var sw = System.Diagnostics.Stopwatch.StartNew();
            while (sw.ElapsedMilliseconds < timeoutMs)
            {
                try
                {
                    if (!await _dev.查询触发状态Async(Ct())) return; // OFF：已空闲
                }
                catch { return; } // 查询失败不阻塞下发流程
                await Task.Delay(200);
            }
            Log("等待空闲超时（可能仍在执行），将继续下发，请留意仪器状态");
        }

        /// <summary>
        /// 将相位角序列整体偏移指定角度（结果对 360 取模，保持 0~359.9），用于生成对称三相的 DEGR。
        /// </summary>
        private static string OffsetDegr(string degrText, double offset)
        {
            var vals = ParseDoubles(degrText);
            if (vals.Length == 0) return degrText;
            return string.Join(",", vals.Select(v =>
            {
                double d = (v + offset) % 360.0;
                if (d < 0) d += 360.0;
                return d.ToString("0.#", CultureInfo.InvariantCulture);
            }));
        }

        /// <summary>
        /// 构建三相对称的 LIST 相位配置：以给定参数为 A 相，B/C 相复制后 DEGR 自动 +120°/+240°。
        /// 适用于三相平衡试验（电压/频率范围、骤变、瞬时跌落等）。DWEL 单位 ms。
        /// </summary>
        private static ListPhaseConfig[] Sym(string degr, string vacS, string vacE,
            string vdcS, string vdcE, string fS, string fE, string dwell, string shape = "")
        {
            var a = new ListPhaseConfig
            {
                Degr = degr,
                VoltAcStart = vacS,
                VoltAcEnd = vacE,
                VoltDcStart = vdcS,
                VoltDcEnd = vdcE,
                FreqStart = fS,
                FreqEnd = fE,
                Dwell = dwell,
                ShapeSeq = shape
            };
            var b = a.Clone(); b.Degr = OffsetDegr(degr, 120);
            var c = a.Clone(); c.Degr = OffsetDegr(degr, 240);
            return new[] { a, b, c };
        }

        /// <summary>
        /// 构建大纲典型试验预设集合（仅含 LIST 模式可实现的项）。
        /// <para>名称含大纲章节号；对称试验用 <see cref="Sym"/> 生成三相，不对称试验逐相显式定义。</para>
        /// </summary>
        private static IReadOnlyList<ListPreset> BuildPresets() => new List<ListPreset>
        {
            // ===== 5.1 交流电压范围（三相平衡渐变，2 循环，DWEL 单位 ms）=====
            new ListPreset("5.1 上限电压范围 220→265V",
                "三相平衡：额定 220V 线性升至上限 265V 再回落，各段 90s，2 循环。判定 A。",
                2, Sym("0,0", "220,265", "265,220", "", "", "50,50", "50,50", "90000,90000")),
            new ListPreset("5.1 下限电压范围 220→85V",
                "三相平衡：220V 降至下限 85V 再回升，各段 90s，2 循环。判定 B。",
                2, Sym("0,0", "220,85", "85,220", "", "", "50,50", "50,50", "90000,90000")),
            new ListPreset("5.1 上限保护电压 220→275V",
                "验证过压保护点与恢复点：220V 升至 275V 再回落，2 循环。判定 C。",
                2, Sym("0,0", "220,275", "275,220", "", "", "50,50", "50,50", "90000,90000")),
            new ListPreset("5.1 下限保护电压 220→80V",
                "验证欠压保护点与恢复点：220V 降至 80V 再回升，2 循环。判定 C。",
                2, Sym("0,0", "220,80", "80,220", "", "", "50,50", "50,50", "90000,90000")),

            // ===== 5.3 交流频率范围（220V 恒定，频率渐变，2 循环）=====
            new ListPreset("5.3 上限频率范围 50→65Hz",
                "220V 恒定，频率 50Hz 升至 65Hz 再回落，各段 60s，2 循环。判定 B。",
                2, Sym("0,0", "220,220", "220,220", "", "", "50,65", "65,50", "60000,60000")),
            new ListPreset("5.3 下限频率范围 50→40Hz",
                "220V 恒定，频率 50Hz 降至 40Hz 再回升，各段 60s，2 循环。判定 B。",
                2, Sym("0,0", "220,220", "220,220", "", "", "50,40", "40,50", "60000,60000")),
            new ListPreset("5.3 上限保护频率 50→75Hz",
                "验证过频保护点与恢复点：50Hz 升至 75Hz 再回落，2 循环。判定 C。",
                2, Sym("0,0", "220,220", "220,220", "", "", "50,75", "75,50", "60000,60000")),

            // ===== 5.4 交流电压骤变（指定相位角阶跃，2 循环）=====
            new ListPreset("5.4 上限电压骤变 220→265V@90°",
                "稳态 220V(5s)→在 90° 相位瞬间跳到 265V(0.5s)→跳回。改 DEGR 中间值可切 0/180/270°。判定 B。",
                2, Sym("0,90,0", "220,265,220", "220,265,220", "", "", "50,50,50", "50,50,50", "5000,500,5000")),
            new ListPreset("5.4 下限电压骤变 220→90V@90°",
                "稳态 220V→在 90° 瞬间跌到 90V(0.5s)→恢复。判定 B。",
                2, Sym("0,90,0", "220,90,220", "220,90,220", "", "", "50,50,50", "50,50,50", "5000,500,5000")),

            // ===== 5.5 交流频率骤变（2 循环）=====
            new ListPreset("5.5 上限频率骤变 50→75Hz",
                "220V 恒定，频率 50Hz 瞬间跳到 75Hz(1s)再回落。判定 B。",
                2, Sym("0,90,0", "220,220,220", "220,220,220", "", "", "50,75,50", "50,75,50", "5000,1000,5000")),
            new ListPreset("5.5 下限频率骤变 50→40Hz",
                "220V 恒定，频率 50Hz 瞬间跌到 40Hz(1s)再回升。判定 B。",
                2, Sym("0,90,0", "220,220,220", "220,220,220", "", "", "50,40,50", "50,40,50", "5000,1000,5000")),

            // ===== 5.12 瞬时电压跌落/冲击（1ms 突变，2 循环）=====
            new ListPreset("5.12 0°冲击 310V/1ms",
                "稳态 220V→0° 相位冲击到 310V 峰值持续 1ms→恢复。1ms 接近 LIST 最小 dwell，若不精确请改 BASE CYCLE。判定不低于 C。",
                2, Sym("0,0,0", "220,310,220", "220,310,220", "", "", "50,50,50", "50,50,50", "5000,1,5000")),
            new ListPreset("5.12 90°跌落 0V/1ms",
                "稳态 220V→90° 相位跌到 0V 持续 1ms→恢复。判定不低于 C。",
                2, Sym("0,90,0", "220,0,220", "220,0,220", "", "", "50,50,50", "50,50,50", "5000,1,5000")),

            // ===== 单相深跌（不对称，A 相深跌 / B·C 相浅跌，无限循环）=====
            new ListPreset("5.x 单相深跌 A相11.5V（不对称示例）",
                "A 相跌到 11.5V、B/C 相跌到 200.1V，跌落 280ms，前后各稳态 20s；三相 DEGR 基准 0/120/240、中间点各异。无限循环，需手动停止。",
                0, new[]
                {
                    new ListPhaseConfig { Degr = "0,0,0",      VoltAcStart = "230,11.5,230",  VoltAcEnd = "230,11.5,230",  VoltDcStart = "10,10,10", VoltDcEnd = "10,10,10", FreqStart = "50,50,50", FreqEnd = "50,50,50", Dwell = "20000,280,20000" },
                    new ListPhaseConfig { Degr = "120,92,120",  VoltAcStart = "230,200.1,230", VoltAcEnd = "230,200.1,230", VoltDcStart = "10,10,10", VoltDcEnd = "10,10,10", FreqStart = "50,50,50", FreqEnd = "50,50,50", Dwell = "20000,280,20000" },
                    new ListPhaseConfig { Degr = "240,268,240", VoltAcStart = "230,200.1,230", VoltAcEnd = "230,200.1,230", VoltDcStart = "10,10,10", VoltDcEnd = "10,10,10", FreqStart = "50,50,50", FreqEnd = "50,50,50", Dwell = "20000,280,20000" },
                }),

            // ===== 6.3 直流电压骤变（注意量程与耦合模式）=====
            new ListPreset("6.3 直流骤变 680→860→450V【注意量程】",
                "直流侧瞬时骤变。⚠ 需先在“耦合模式”设为 DC；且 680~860V 已超 Chroma61800.cs 标注的 DC 量程(-495.0~495.0V)，须确认设备为高压选配档，否则命令会被拒绝或截顶。",
                2, Sym("0,0,0,0", "", "", "680,860,450,680", "680,860,450,680", "", "", "5000,5000,5000,5000")),
        };
        #endregion

        public void Dispose()
        {
            try { _cmdCts?.Cancel(); } catch { }
            _cmdCts?.Dispose();
        }
    }

    /// <summary>
    /// 单个相位的 LIST 序列配置（对应界面一组序列文本框）。
    /// <para>三相独立下发（INST:EDIT EACH + INST:NSEL）时，每相持有一份本配置，
    /// 各字段均为逗号分隔的原始文本，下发时再解析为数值序列。</para>
    /// </summary>
    public class ListPhaseConfig
    {
        /// <summary>相位角度序列 (LIST:DEGR, °)</summary>
        public string Degr { get; set; } = "";
        /// <summary>AC 起始电压序列 (LIST:VOLT:AC:STAR, V)</summary>
        public string VoltAcStart { get; set; } = "";
        /// <summary>AC 结束电压序列 (LIST:VOLT:AC:END, V)</summary>
        public string VoltAcEnd { get; set; } = "";
        /// <summary>DC 起始电压序列 (LIST:VOLT:DC:STAR, V)</summary>
        public string VoltDcStart { get; set; } = "";
        /// <summary>DC 结束电压序列 (LIST:VOLT:DC:END, V)</summary>
        public string VoltDcEnd { get; set; } = "";
        /// <summary>起始频率序列 (LIST:FREQ:STAR, Hz)</summary>
        public string FreqStart { get; set; } = "";
        /// <summary>结束频率序列 (LIST:FREQ:END, Hz)</summary>
        public string FreqEnd { get; set; } = "";
        /// <summary>静止时间序列 (LIST:DWEL, ms)</summary>
        public string Dwell { get; set; } = "";
        /// <summary>波形顺序 (LIST:SHAP，可直接写形状名或引用 A/B 组)</summary>
        public string ShapeSeq { get; set; } = "";

        /// <summary>浅拷贝一份配置（用于"复制到三相"）。</summary>
        public ListPhaseConfig Clone() => (ListPhaseConfig)MemberwiseClone();
    }

    /// <summary>
    /// 大纲典型试验预设：一次载入即可填充三相 LIST 序列与基础参数（次数/触发/时基/相位连续）。
    /// </summary>
    public class ListPreset
    {
        /// <summary>预设名称（含大纲章节号，供下拉显示）</summary>
        public string Name { get; }
        /// <summary>试验说明与判定等级提示</summary>
        public string Note { get; }
        /// <summary>列表执行次数 (LIST:COUN，0 = 无限循环)</summary>
        public int Count { get; }
        /// <summary>触发形态 (LIST:TRIG)</summary>
        public string Trigger { get; }
        /// <summary>时间基础 (LIST:BASE)</summary>
        public string TimeBase { get; }
        /// <summary>相位连续功能 (LIST:PHAS:CONT)；旧文件无此键时为 null，载入时保持界面当前值</summary>
        public string? PhaseContinue { get; }
        /// <summary>三相序列配置（索引 0=A/Φ1, 1=B/Φ2, 2=C/Φ3）</summary>
        public ListPhaseConfig[] Phases { get; }

        [JsonConstructor]
        public ListPreset(string name, string note, int count, ListPhaseConfig[] phases,
                          string trigger = "AUTO", string timeBase = "TIME", string? phaseContinue = null)
        {
            Name = name;
            Note = note;
            Count = count;
            Phases = phases;
            Trigger = trigger;
            TimeBase = timeBase;
            PhaseContinue = phaseContinue;
        }
    }

    /// <summary>
    /// SYNTHESIS 自定义谐波波形预设：一次载入即可填充合成波形全部参数
    /// （数据格式/基频/基波电压/直流/起始相位/谐波振幅与相位序列）。
    /// </summary>
    public class SynthPreset
    {
        /// <summary>预设名称（保存时作为文件名，供下拉显示）</summary>
        public string Name { get; }
        /// <summary>波形说明</summary>
        public string Note { get; }
        /// <summary>谐波阶数据格式 (SYNT:COMP)</summary>
        public string Compose { get; }
        /// <summary>基频 (SYNT:FREQ, 50 | 60)</summary>
        public int Frequency { get; }
        /// <summary>基波交流电压 (SYNT:FUND, V)</summary>
        public double Fundamental { get; }
        /// <summary>叠加直流电压 (SYNT:DC, V)</summary>
        public double Dc { get; }
        /// <summary>起始相位角 (SYNT:SPH, °)</summary>
        public double StartPhase { get; }
        /// <summary>各次谐波振幅序列文本 (SYNT:AMPL, 逗号分隔, 首值=2次谐波)</summary>
        public string AmplitudeText { get; }
        /// <summary>各次谐波相位角序列文本 (SYNT:PHAS, 逗号分隔, 首值=2次谐波)</summary>
        public string PhaseText { get; }

        [JsonConstructor]
        public SynthPreset(string name, string note, string compose, int frequency,
                           double fundamental, double dc, double startPhase,
                           string amplitudeText, string phaseText)
        {
            Name = name;
            Note = note;
            Compose = compose;
            Frequency = frequency;
            Fundamental = fundamental;
            Dc = dc;
            StartPhase = startPhase;
            AmplitudeText = amplitudeText;
            PhaseText = phaseText;
        }
    }
}