using Prism.Commands;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Runtime.InteropServices;
using System.Threading.Tasks;
using System.Windows;
using TeamAAS.Camera.Interfaces;
using TeamAAS.Communication;
using TeamAAS.Communication.Base;
using TeamAAS.Communication.Config;
using TeamAAS.Communication.Interfaces;
using TeamAAS.Communication.LightSources;
using TeamAAS.Communication.Models;
using TeamAAS.Feeder.Interfaces;
using TeamAAS.Global.Devices;
using TeamAAS.Motion;
using TeamAAS.Robot.Interfaces;
using TeamAAS.Robot.Models;
using TeamAAS.Views;

namespace TeamAAS.ViewModels
{
    /// <summary>
    /// 设置页 ViewModel（partial 拆分）：
    /// 本文件 = 导航/通讯/调试 + 构造函数 + 全部命令声明；
    /// 相机/机器人/光源/全局变量/系统设置分别位于 SettingViewModel.*.cs。
    /// </summary>
    public partial class SettingViewModel : TeamAAS.BindableBase
    {
        private readonly ICameraManager _cameraManager;
        private readonly IRobotManager _robotManager;
        private readonly IFeederManager _feederManager;
        private readonly CommunicationManager _communicationManager;
        private readonly MotionManager _motionManager;

        [DllImport("gdi32.dll")]
        private static extern bool DeleteObject(IntPtr hObject);

        #region 导航

        private string _selectedSection = "Camera";
        public string SelectedSection
        {
            get { return _selectedSection; }
            set
            {
                if (SetProperty(ref _selectedSection, value))
                {
                    RaisePropertyChanged(nameof(IsBasicTab));
                    RaisePropertyChanged(nameof(IsPlcTab));
                    RaisePropertyChanged(nameof(IsCommSection));
                    RaisePropertyChanged(nameof(CommTabDisplayText));
                    UpdateDisplayedCommunications();
                    RaisePropertyChanged(nameof(PropertyGridSelectedObject));
                    UpdateDebugMode();
                    if (value == "Light")
                    {
                        RefreshLightSerialDevices();
                    }
                    if (value == "ProductData")
                    {
                        RefreshDatabaseHost();
                    }
                    if (value == "GlobalVariable")
                    {
                        // 进入全局变量页：从 live 列表克隆 Global 变量到编辑器
                        InitGlobalVarEditor();
                    }
                }
            }
        }
        #endregion

        #region 通讯管理 - 基础属性

        public bool IsCommSection => SelectedSection == "BasicComm" || SelectedSection == "PlcComm";
        public bool IsBasicTab => SelectedSection == "BasicComm";
        public bool IsPlcTab => SelectedSection == "PlcComm";

        public string CommTabDisplayText => IsBasicTab ? "基础通讯设备" : "PLC通讯设备";

        public ObservableCollection<ICommunication> Communications { get; }
        public ObservableCollection<CommunicationTypeInfo> CommunicationTypes { get; }
        public ObservableCollection<CommunicationTypeInfo> PlcTypes { get; }

        /// <summary>当前Tab下显示的通讯列表</summary>
        public ObservableCollection<ICommunication> DisplayedCommunications { get; }

        private ICommunication _selectedCommunication;
        public ICommunication SelectedCommunication
        {
            get { return _selectedCommunication; }
            set
            {
                var old = _selectedCommunication as System.ComponentModel.INotifyPropertyChanged;
                if (old != null) old.PropertyChanged -= OnSelectedDevicePropertyChanged;

                SetProperty(ref _selectedCommunication, value);

                var now = _selectedCommunication as System.ComponentModel.INotifyPropertyChanged;
                if (now != null) now.PropertyChanged += OnSelectedDevicePropertyChanged;

                RaisePropertyChanged(nameof(IsTcpClientSelected));
                RaisePropertyChanged(nameof(IsTcpServerSelected));
                RaisePropertyChanged(nameof(IsSerialSelected));
                RaisePropertyChanged(nameof(IsUdpSelected));
                RaisePropertyChanged(nameof(IsWebSelected));
                RaisePropertyChanged(nameof(IsPlcSelected));
                RaisePropertyChanged(nameof(HasSelectedCommunication));
                RaisePropertyChanged(nameof(PropertyGridSelectedObject));
                RaisePropertyChanged(nameof(IsPropertyGridEnabled));
                UpdateDebugMode();
            }
        }

        private void OnSelectedDevicePropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
        {
            if (e.PropertyName == nameof(ICommunication.IsConnected))
            {
                RaisePropertyChanged(nameof(IsPropertyGridEnabled));
                UpdateDebugMode();
            }
        }

        public bool HasSelectedCommunication => _selectedCommunication != null;

        /// <summary>
        /// PropertyGrid 绑定对象 - 直接返回当前选中的配置对象
        /// 基础Tab 和 PLCTab 使用不同的 Info 子类，PropertyGrid 自动只显示对应属性
        /// </summary>
        public object PropertyGridSelectedObject => _selectedCommunication;

        /// <summary>
        /// PropertyGrid 是否可用（未选中或已连接时禁用）
        /// </summary>
        public bool IsPropertyGridEnabled => _selectedCommunication != null && !_selectedCommunication.IsConnected;

        private bool IsType(string typeKey) => SelectedCommunication?.TypeKey?.Contains(typeKey) ?? false;
        public bool IsTcpClientSelected => IsType("TcpClientCommunication");
        public bool IsTcpServerSelected => IsType("TcpServerCommunication");
        public bool IsSerialSelected => IsType("SerialCommunication");
        public bool IsUdpSelected => IsType("UdpCommunication");
        public bool IsWebSelected => IsType("WebCommunication");
        public bool IsPlcSelected => SelectedCommunication is PlcCommunicationBase;

        private string _addTypeKey = "";
        public string AddTypeKey
        {
            get { return _addTypeKey; }
            set { SetProperty(ref _addTypeKey, value); }
        }

        private string _commMessage = "";
        public string CommMessage
        {
            get { return _commMessage; }
            set { SetProperty(ref _commMessage, value); }
        }

        /// <summary>基础通讯类型列表（供基础Tab添加用）</summary>
        public ObservableCollection<CommunicationTypeInfo> BasicCommTypes { get; }

        private CommunicationTypeInfo _selectedPlcType;
        public CommunicationTypeInfo SelectedPlcType
        {
            get { return _selectedPlcType; }
            set { SetProperty(ref _selectedPlcType, value); }
        }
        #endregion

        #region 视觉引擎与主页画面

        /// <summary>可用视觉引擎（启动时反射探测：VisionPro / VM / Halcon ...）</summary>
        public System.Collections.Generic.IReadOnlyList<TeamAAS.Vision.IVisualEngine> AvailableEngines
            => TeamAAS.Vision.VisualEngineManager.Instance.Engines;

        private TeamAAS.Vision.IVisualEngine _selectedEngine;
        /// <summary>当前选中的视觉引擎（一键切换：主页画面/标定页随引擎变化）</summary>
        public TeamAAS.Vision.IVisualEngine SelectedEngine
        {
            get
            {
                return _selectedEngine
                    ?? TeamAAS.Vision.VisualEngineManager.Instance.Current
                    ?? TeamAAS.Vision.VisualEngineManager.Instance.GetOrLoad(App.SystemConfig?.Vision?.EngineName);
            }
            set
            {
                if (value == null) return;
                _selectedEngine = value;
                RaisePropertyChanged(nameof(SelectedEngine));

                if (!TeamAAS.Vision.VisualEngineManager.Instance.SetCurrent(value.EngineName)) return;
                App.SystemConfig.Vision.EngineName = value.EngineName;
                ApplyVisionLayout();
                App.SaveSystemConfig();
            }
        }

        /// <summary>按当前配置重建主页画面布局、重注册画面框并保存配置</summary>
        private void ApplyVisionLayout()
        {
            var vision = App.SystemConfig.Vision;
            var engine = TeamAAS.Vision.VisualEngineManager.Instance.Current;
            engine?.ApplyHomeLayout(vision.HomePageFrameCount, vision.HomeFrameArrange);

            TeamAAS.Vision.VisualFrameManager.Clear();
            for (int i = 0; i < vision.HomePageFrameCount; i++)
                TeamAAS.Vision.VisualFrameManager.Register($"home:{i + 1}", vision.GetFrameName(i), "Home");

            // 主页 VM 不一定存活，布局数据已持久化；主页下次导航时按配置重建
            App.SaveSystemConfig();
        }

        private DelegateCommand _applyVisionLayoutCommand;
        public DelegateCommand ApplyVisionLayoutCommand
            => _applyVisionLayoutCommand ?? (_applyVisionLayoutCommand = new DelegateCommand(ApplyVisionLayout));

        /// <summary>主页画面数可选规格：均能被最优行列算法精确铺满（无空白框）</summary>
        public int[] HomePageFrameOptions { get; } = { 1, 2, 4, 6, 9 };

        /// <summary>主页画面框水平排列（HomeFrameArrange=1）</summary>
        public bool IsHorizontalArrange
        {
            get => (App.SystemConfig?.Vision?.HomeFrameArrange ?? 1) == 1;
            set { if (value && App.SystemConfig?.Vision != null) App.SystemConfig.Vision.HomeFrameArrange = 1; }
        }

        /// <summary>主页画面框垂直排列（HomeFrameArrange=2）</summary>
        public bool IsVerticalArrange
        {
            get => (App.SystemConfig?.Vision?.HomeFrameArrange ?? 1) == 2;
            set { if (value && App.SystemConfig?.Vision != null) App.SystemConfig.Vision.HomeFrameArrange = 2; }
        }

        #endregion

        #region 通讯调试
        private ICommunication _subscribedDevice;

        private bool _isPlcDebugMode;
        public bool IsPlcDebugMode
        {
            get { return _isPlcDebugMode; }
            set { SetProperty(ref _isPlcDebugMode, value); }
        }

        private object _currentCommunicationDebugPage;
        /// <summary>品牌专属调试页（由 [Communication] 特性 DebugPageType 创建）；null = 使用通用通讯测试面板</summary>
        public object CurrentCommunicationDebugPage
        {
            get { return _currentCommunicationDebugPage; }
            private set
            {
                SetProperty(ref _currentCommunicationDebugPage, value);
            }
        }


        private ICommunication _debugPageDevice;

        /// <summary>
        /// 按选中的设备刷新专属调试页；设备实例未变化时不重建（保留页面状态）。
        /// </summary>
        private void RefreshCommunicationDebugPage()
        {
            var comm = _selectedCommunication;
            if (comm == _debugPageDevice && (comm != null || _currentCommunicationDebugPage == null))
                return;

            (_currentCommunicationDebugPage as TeamAAS.Communication.UI.ICommunicationDebugPage)?.UnbindCommunication();
            _debugPageDevice = null;
            CurrentCommunicationDebugPage = null;

            if (comm == null) return;

            try
            {
                var page = TeamAAS.Communication.UI.CommunicationDebugPageFactory.Create(comm);
                if (page == null) return;
                _debugPageDevice = comm;
                CurrentCommunicationDebugPage = page;
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine($"加载通讯调试页失败: {ex.Message}");
            }
        }

        #endregion

        #region 相机命令
        public DelegateCommand SearchDevicesCommand { get; }
        public DelegateCommand DeleteCameraCommand { get; }
        public DelegateCommand ConnectCommand { get; }
        public DelegateCommand DisconnectCommand { get; }
        public DelegateCommand StartGrabbingCommand { get; }
        public DelegateCommand StopGrabbingCommand { get; }
        public DelegateCommand SaveCameraConfigCommand { get; }
        #endregion

        #region 机器人命令
        public DelegateCommand AddRobotCommand { get; }
        public DelegateCommand DeleteRobotCommand { get; }
        public DelegateCommand ConnectRobotCommand { get; }
        public DelegateCommand DisconnectRobotCommand { get; }
        public DelegateCommand SaveRobotConfigCommand { get; }
        #endregion

        #region 供料器命令
        public DelegateCommand AddFeederCommand { get; }
        public DelegateCommand DeleteFeederCommand { get; }
        public DelegateCommand SaveFeederConfigCommand { get; }
        public DelegateCommand ConnectFeederCommand { get; }
        public DelegateCommand DisconnectFeederCommand { get; }
        public DelegateCommand ToggleBacklightCommand { get; }
        public DelegateCommand<object> FeederDirectionCommand { get; }
        public DelegateCommand StopFeederActionCommand { get; }
        public DelegateCommand ExecuteActionCommand { get; }
        public DelegateCommand DownloadParamCommand { get; }

        #region 序列集命令
        public DelegateCommand AddSequenceCommand { get; }
        public DelegateCommand DeleteSequenceCommand { get; }
        public DelegateCommand RenameSequenceCommand { get; }
        public DelegateCommand<string> AddSequenceStepCommand { get; }
        public DelegateCommand MoveUpStepCommand { get; }
        public DelegateCommand MoveDownStepCommand { get; }
        public DelegateCommand DeleteStepCommand { get; }
        public DelegateCommand ExecuteSequenceCommand { get; }
        public DelegateCommand StopSequenceCommand { get; }
        #endregion
        #endregion

        #region 光源命令
        public DelegateCommand LightConnectCommand { get; }
        public DelegateCommand LightDisconnectCommand { get; }
        public DelegateCommand LightTurnOnAllCommand { get; }
        public DelegateCommand LightTurnOffAllCommand { get; }
        public DelegateCommand LightSetBrightnessCommand { get; }
        public DelegateCommand LightReadBrightnessCommand { get; }
        public DelegateCommand LightRefreshDevicesCommand { get; }
        #endregion

        #region 通讯命令
        public DelegateCommand AddCommunicationCommand { get; }
        public DelegateCommand DeleteCommunicationCommand { get; }
        public DelegateCommand ConnectCommunicationCommand { get; }
        public DelegateCommand DisconnectCommunicationCommand { get; }
        public DelegateCommand SaveCommunicationsCommand { get; }
        public DelegateCommand RefreshCommunicationCommand { get; }
        public DelegateCommand ConnectAllCommand { get; }
        public DelegateCommand DisconnectAllCommand { get; }
        #endregion

        #region 控制卡命令
        public DelegateCommand AddMotionCardCommand { get; }
        public DelegateCommand DeleteMotionCardCommand { get; }
        public DelegateCommand ConnectMotionCardCommand { get; }
        public DelegateCommand DisconnectMotionCardCommand { get; }
        public DelegateCommand SaveMotionCardConfigCommand { get; }
        #endregion

        public SettingViewModel(ICameraManager cameraManager, IRobotManager robotManager,
            CommunicationManager communicationManager, IFeederManager feederManager)
        {
            _cameraManager = cameraManager;
            _robotManager = robotManager;
            _communicationManager = communicationManager;
            _feederManager = feederManager;
            _motionManager=MotionManager.Instance;
            Cameras = new ObservableCollection<TeamAAS.Camera.Models.CameraInfo>();
            SdkStatus = new ObservableCollection<SdkStatusItem>();
            Robots = new ObservableCollection<RobotInfo>();
            Feeders = new ObservableCollection<TeamAAS.Feeder.Models.FeederInfo>();
            Communications = new ObservableCollection<ICommunication>();
            DisplayedCommunications = new ObservableCollection<ICommunication>();
            CommunicationTypes = new ObservableCollection<CommunicationTypeInfo>();
            PlcTypes = new ObservableCollection<CommunicationTypeInfo>();
            BasicCommTypes = new ObservableCollection<CommunicationTypeInfo>();
            MotionCards = new ObservableCollection<Motion.Models.MotionDeviceConfig>();

            // 相机命令
            SearchDevicesCommand = new DelegateCommand(OpenSearchDialog);
            DeleteCameraCommand = new DelegateCommand(DeleteCamera);
            ConnectCommand = new DelegateCommand(async () => await ConnectAsync());
            DisconnectCommand = new DelegateCommand(Disconnect);
            StartGrabbingCommand = new DelegateCommand(StartGrabbing);
            StopGrabbingCommand = new DelegateCommand(StopGrabbing);
            SaveCameraConfigCommand = new DelegateCommand(SaveCameraConfig);

            // 机器人命令
            AddRobotCommand = new DelegateCommand(AddRobot);
            DeleteRobotCommand = new DelegateCommand(DeleteRobot);
            ConnectRobotCommand = new DelegateCommand(async () => await ConnectRobotAsync());
            DisconnectRobotCommand = new DelegateCommand(DisconnectRobot);
            SaveRobotConfigCommand = new DelegateCommand(SaveRobotConfig);

            // 供料器命令
            AddFeederCommand = new DelegateCommand(AddFeeder);
            DeleteFeederCommand = new DelegateCommand(DeleteFeeder, () => HasSelectedFeeder);
            SaveFeederConfigCommand = new DelegateCommand(SaveFeederConfig);
            ConnectFeederCommand = new DelegateCommand(async () => await ConnectFeederAsync());
            DisconnectFeederCommand = new DelegateCommand(DisconnectFeeder);
            ToggleBacklightCommand = new DelegateCommand(ToggleBacklight);
            FeederDirectionCommand = new DelegateCommand<object>(async (p) => await ExecuteDirectionAsync(Convert.ToInt32(p)));
            StopFeederActionCommand = new DelegateCommand(async () => await StopFeederAsync());
            ExecuteActionCommand = new DelegateCommand(async () => await ExecuteCurrentActionAsync());
            DownloadParamCommand = new DelegateCommand(async () => await DownloadFeederParamsAsync());

            AddSequenceCommand = new DelegateCommand(AddSequence);
            DeleteSequenceCommand = new DelegateCommand(DeleteSequence);
            RenameSequenceCommand = new DelegateCommand(RenameSequence);
            AddSequenceStepCommand = new DelegateCommand<string>(AddSequenceStep);
            MoveUpStepCommand = new DelegateCommand(MoveUpStep);
            MoveDownStepCommand = new DelegateCommand(MoveDownStep);
            DeleteStepCommand = new DelegateCommand(DeleteStep);
            ExecuteSequenceCommand = new DelegateCommand(async () => await ExecuteSequenceAsync());
            StopSequenceCommand = new DelegateCommand(StopSequence);

            // 光源命令
            LightConnectCommand = new DelegateCommand(async () => await LightConnectAsync());
            LightDisconnectCommand = new DelegateCommand(LightDisconnect);
            LightTurnOnAllCommand = new DelegateCommand(async () => await LightTurnOnAllAsync());
            LightTurnOffAllCommand = new DelegateCommand(async () => await LightTurnOffAllAsync());
            LightSetBrightnessCommand = new DelegateCommand(async () => await LightSetBrightnessAsync());
            LightReadBrightnessCommand = new DelegateCommand(async () => await LightReadBrightnessAsync());
            LightRefreshDevicesCommand = new DelegateCommand(RefreshLightSerialDevices);

            // 通讯命令
            AddCommunicationCommand = new DelegateCommand(AddCommunication);
            DeleteCommunicationCommand = new DelegateCommand(DeleteCommunication);
            ConnectCommunicationCommand = new DelegateCommand(async () => await ConnectCommunicationAsync());
            DisconnectCommunicationCommand = new DelegateCommand(DisconnectCommunication);
            SaveCommunicationsCommand = new DelegateCommand(SaveCommunications);
            RefreshCommunicationCommand = new DelegateCommand(RefreshCommunications);
            ConnectAllCommand = new DelegateCommand(ConnectAll);
            DisconnectAllCommand = new DelegateCommand(DisconnectAll);


            AddMotionCardCommand = new DelegateCommand(AddMotionCard);
            DeleteMotionCardCommand = new DelegateCommand(DeleteRobot);
            ConnectMotionCardCommand = new DelegateCommand(async () => await ConnectRobotAsync());
            DisconnectMotionCardCommand = new DelegateCommand(DisconnectRobot);
            SaveMotionCardConfigCommand = new DelegateCommand(SaveRobotConfig);


            // 全局变量命令
            SaveGlobalVarsCommand = new DelegateCommand(SaveGlobalVars);
            InitGlobalVarEditor();

            // 通用设置命令
            SaveSystemConfigCommand = new DelegateCommand(SaveSystemConfig);
            LoadSystemConfigCommand = new DelegateCommand(LoadSystemConfig);

            // 语言设置命令
            RefreshLanguagesCommand = new DelegateCommand(RefreshLanguages);

            // 全局事件配置命令
            SaveGlobalEventConfigCommand = new DelegateCommand(SaveGlobalEventConfig);
            LoadGlobalEventConfigCommand = new DelegateCommand(LoadGlobalEventConfig);
            AddHeartbeatCommand = new DelegateCommand(AddHeartbeat);
            RemoveHeartbeatCommand = new DelegateCommand<HeartbeatConfig>(RemoveHeartbeat);
            AddProductSwitchEventCommand = new DelegateCommand(AddProductSwitchEvent);
            RemoveProductSwitchEventCommand = new DelegateCommand<ProductSwitchEvent>(RemoveProductSwitchEvent);
        }

        /// <summary>
        /// 首次导航到设置页时延迟加载（UI 先渲染，数据后台加载）
        /// </summary>
        public void DelayedLoad()
        {
            try { LoadSdkStatus(); } catch { }
            try { LoadCommunicationTypes(); } catch { }
            try { LoadPlcTypes(); } catch { }
            try { LoadBasicCommTypes(); } catch { }
            try { RefreshCommunications(); } catch { }
            try { RefreshLightSerialDevices(); } catch { }
            try { InitLightModelOptions(); } catch { }
            try { RefreshCameraList(); } catch { }
            try { RefreshRobotList(); } catch { }
            try { RefreshFeederList(); } catch { }
            try { RefreshRecipeList(); } catch { }
            try { InitGlobalVarEditor(); } catch { }
            try { TeamAAS.FlowEditor.Execution.ResultRegistry.RefreshGlobals(); } catch { }
            try { LoadSystemConfig(); } catch { }
            try { LoadGlobalEventConfig(); } catch { }
            try { InitializeLanguageSettings(); } catch { }
        }

        private void InitLightModelOptions()
        {
            LightModelDisplayOptions.Clear();
            foreach (LightModel model in Enum.GetValues(typeof(LightModel)))
            {
                var field = typeof(LightModel).GetField(model.ToString());
                var attr = field?.GetCustomAttributes(typeof(System.ComponentModel.DescriptionAttribute), false)
                    .OfType<System.ComponentModel.DescriptionAttribute>()
                    .FirstOrDefault();
                string display = attr?.Description ?? model.ToString();
                LightModelDisplayOptions.Add(new LightModelDisplay { Model = model, Display = display });
            }
            SelectedLightModelItem = LightModelDisplayOptions.FirstOrDefault();
        }

        #region 通讯基础操作

        private void LoadCommunicationTypes()
        {
            CommunicationTypes.Clear();
            try
            {
                var types = _communicationManager.GetAvailableTypes();
                foreach (var t in types)
                {
                    CommunicationTypes.Add(t);
                }
                AddTypeKey = CommunicationTypes.FirstOrDefault()?.TypeKey ?? "";
            }
            catch (Exception ex)
            {
                CommMessage = $"加载通讯类型失败: {ex.Message}";
            }
        }

        private void LoadPlcTypes()
        {
            PlcTypes.Clear();
            try
            {
                var types = _communicationManager.GetPlcTypes();
                foreach (var t in types)
                {
                    PlcTypes.Add(t);
                }
            }
            catch (Exception ex)
            {
                CommMessage = $"加载 PLC 协议类型失败: {ex.Message}";
            }
        }

        private void LoadBasicCommTypes()
        {
            BasicCommTypes.Clear();
            try
            {
                var types = _communicationManager.GetBasicTypes();
                foreach (var t in types)
                {
                    BasicCommTypes.Add(t);
                }
            }
            catch { }
        }

        private void RefreshCommunications()
        {
            Communications.Clear();
            try
            {
                foreach (var comm in _communicationManager.Devices)
                {
                    Communications.Add(comm);
                }
            }
            catch (Exception ex)
            {
                CommMessage = $"加载通讯列表失败: {ex.Message}";
            }
            UpdateDisplayedCommunications();
            RefreshLightSerialDevices();
        }

        private void UpdateDisplayedCommunications()
        {
            DisplayedCommunications.Clear();
            var list = Communications.ToList();

            if (IsBasicTab)
            {
                foreach (var c in list)
                {
                    if (c is PlcCommunicationBase) continue;
                    DisplayedCommunications.Add(c);
                }
            }
            else if (IsPlcTab)
            {
                foreach (var c in list)
                {
                    if (c is PlcCommunicationBase)
                        DisplayedCommunications.Add(c);
                }
            }

            RaisePropertyChanged(nameof(DisplayedCommunications));
        }

        private void AddCommunication()
        {
            try
            {
                string typeKey;
                string baseName;

                if (IsPlcTab)
                {
                    var plcType = SelectedPlcType;
                    if (plcType == null)
                    {
                        DialogHelper.ShowWarning("请先选择 PLC 协议类型");
                        return;
                    }
                    typeKey = plcType.TypeKey;
                    baseName = "PLC" + (DisplayedCommunications.Count + 1);
                }
                else
                {
                    if (string.IsNullOrWhiteSpace(AddTypeKey))
                    {
                        DialogHelper.ShowWarning("请先选择通讯类型");
                        return;
                    }
                    typeKey = AddTypeKey;
                    baseName = _communicationManager.GetTypeInfo(typeKey)?.DisplayName ?? "通讯" + (DisplayedCommunications.Count + 1);
                }

                var index = Communications.Count + 1;
                var name = GetUniqueCommunicationName(baseName + index);
                var device = _communicationManager.Create(typeKey, Guid.NewGuid(), name, index);

                _communicationManager.Register(device);
                Communications.Add(device);
                UpdateDisplayedCommunications();
                SelectedCommunication = device;
                CommMessage = $"已添加 {device.Name}";
                RefreshLightSerialDevices();
            }
            catch (Exception ex)
            {
                DialogHelper.ShowError("添加通讯失败", ex);
            }
        }

        private string GetUniqueCommunicationName(string baseName)
        {
            var names = new HashSet<string>(
                Communications.Select(c => c.Name),
                StringComparer.OrdinalIgnoreCase);

            if (!names.Contains(baseName)) return baseName;

            int n = 1;
            string candidate;
            do
            {
                candidate = $"{baseName}({n})";
                n++;
            } while (names.Contains(candidate));
            return candidate;
        }

        private void DeleteCommunication()
        {
            if (SelectedCommunication == null) return;

            if (!DialogHelper.ConfirmYesNo(
                $"确认删除 \"{SelectedCommunication.Name}\" 吗?",
                "确认删除"))
            {
                return;
            }

            var toRemove = SelectedCommunication;
            try
            {
                _communicationManager.Remove(toRemove.Id);
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine($"移除通讯设备异常: {ex.Message}");
            }

            Communications.Remove(toRemove);
            DisplayedCommunications.Remove(toRemove);
            for (int i = 0; i < Communications.Count; i++)
            {
                Communications[i].Index = i + 1;
            }
            SelectedCommunication = null;
            RefreshLightSerialDevices();
        }

        private async Task ConnectCommunicationAsync()
        {
            if (SelectedCommunication == null) return;

            try
            {
                await SelectedCommunication.ConnectAsync();
                UpdateDebugMode();
                RaisePropertyChanged(nameof(IsPropertyGridEnabled));
                CommMessage = SelectedCommunication.IsConnected ? $"已连接 {SelectedCommunication.Name}" : $"连接失败 {SelectedCommunication.Name}";
            }
            catch (Exception ex)
            {
                CommMessage = $"连接异常: {ex.Message}";
            }
        }

        private void DisconnectCommunication()
        {
            if (SelectedCommunication == null) return;

            try
            {
                SelectedCommunication.Disconnect();
                RaisePropertyChanged(nameof(IsPropertyGridEnabled));
                CommMessage = $"已断开 {SelectedCommunication.Name}";
            }
            catch (Exception ex)
            {
                CommMessage = $"断开异常: {ex.Message}";
            }
        }

        private void ConnectAll()
        {
            try
            {
                foreach (var device in Communications)
                {
                    try { device.Connect(); } catch { }
                }
                CommMessage = "已连接所有设备";
            }
            catch (Exception ex)
            {
                CommMessage = $"批量连接异常: {ex.Message}";
            }
        }

        private void DisconnectAll()
        {
            try
            {
                foreach (var device in Communications)
                {
                    try { device.Disconnect(); } catch { }
                }
                CommMessage = "已断开所有设备";
            }
            catch (Exception ex)
            {
                CommMessage = $"批量断开异常: {ex.Message}";
            }
        }

        private void SaveCommunications()
        {
            try
            {
                if (_communicationManager.SaveConfig())
                    CommMessage = "通讯配置已保存";
                else
                    DialogHelper.ShowError("通讯配置保存失败，请查看日志");
            }
            catch (Exception ex)
            {
                DialogHelper.ShowError("保存通讯配置失败", ex);
            }
        }

        #endregion

        #region 通讯调试

        private void UpdateDebugMode()
        {
            if (_subscribedDevice != null)
            {
                _subscribedDevice.DataReceivedEvent -= OnDataReceived;
                _subscribedDevice = null;
            }

            if (_selectedCommunication == null)
            {
                IsPlcDebugMode = false;
                return;
            }

            IsPlcDebugMode = _selectedCommunication is PlcCommunicationBase;

            var comm = _communicationManager.Get(_selectedCommunication.Id);
            if (comm != null)
            {
                _subscribedDevice = comm;
                _subscribedDevice.DataReceivedEvent += OnDataReceived;
            }

            RefreshCommunicationDebugPage();
        }

        private void OnDataReceived(object sender, string data)
        {
            var comm = _selectedCommunication as BindableCommunicationBase;
            if (comm == null) return;
            Application.Current.Dispatcher.Invoke(() =>
            {
                comm.AppendLog($"RX: {data}");
            });
        }

        #endregion
    }
}