using Prism.Events;
using System;
using System.Threading.Tasks;
using XP.Common.Logging.Interfaces;
using XP.Hardware.RaySource.Abstractions;
using XP.Hardware.RaySource.Abstractions.Enums;
using XP.Hardware.RaySource.Abstractions.Events;
using XP.Hardware.RaySource.Config;

namespace XP.Hardware.RaySource.Services
{
    /// <summary>
    /// 射线源业务服务实现类 | X-Ray Source Business Service Implementation
    /// 单例模式，调度工厂+业务规则校验+事件驱动 | Singleton pattern, factory dispatch + business rule validation + event-driven
    /// </summary>
    public class RaySourceService : IRaySourceService
    {
        private readonly IRaySourceFactory _factory;
        private readonly RaySourceConfig _config;
        private readonly IEventAggregator _eventAggregator;
        private readonly ILoggerService _logger;
        private readonly IFilamentLifetimeService _filamentLifetimeService;
        private IXRaySource _currentSource;
        private bool _isDisposed = false;
        private readonly object _lockObj = new object();

        /// <summary>
        /// 上一次灯丝记录对应的射线状态（用于去重，防止设备推送抖动）| Last filament recording status (for dedup, prevents device push jitter)
        /// </summary>
        private RaySourceStatus? _lastFilamentRecordedStatus;

        /// <summary>
        /// 当前射线源实例 | Current X-ray source instance
        /// </summary>
        public IXRaySource CurrentSource => _currentSource;

        /// <summary>
        /// 是否已初始化（且连接正常）| Is initialized (and connected)
        /// </summary>
        public bool IsInitialized => _isInitializedFlag && _currentSource != null;

        private bool _isInitializedFlag = false;

        /// <summary>
        /// 是否射线开启（由 CurrentStatus 派生，Opened 即为 true）| Is X-ray on (derived from CurrentStatus, true when Opened)
        /// </summary>
        public bool IsXRayOn => CurrentStatus == RaySourceStatus.Opened;

        /// <summary>
        /// 射线源是否已建立完整连接（由设备层 RaySourceConnected 推送确认）| Whether RaySource has established full connection (confirmed by device RaySourceConnected push)
        /// </summary>
        public bool IsConnected => _currentSource?.IsConnected ?? false;

        /// <summary>
        /// 当前射线源状态 | Current X-ray source status
        /// </summary>
        public RaySourceStatus CurrentStatus { get; private set; } = RaySourceStatus.Unavailable;

        /// <summary>
        /// 构造函数 | Constructor
        /// </summary>
        public RaySourceService(
            IRaySourceFactory factory,
            RaySourceConfig config,
            IEventAggregator eventAggregator,
            ILoggerService logger,
            IFilamentLifetimeService filamentLifetimeService)
        {
            _factory = factory ?? throw new ArgumentNullException(nameof(factory));
            _config = config ?? throw new ArgumentNullException(nameof(config));
            _eventAggregator = eventAggregator ?? throw new ArgumentNullException(nameof(eventAggregator));
            _logger = (logger ?? throw new ArgumentNullException(nameof(logger))).ForModule("RaySource.Service");
            _filamentLifetimeService = filamentLifetimeService ?? throw new ArgumentNullException(nameof(filamentLifetimeService));

            _logger.Info("射线源服务已创建 | RaySource service created");

            // 订阅射线源状态变更事件（处理状态同步和异常断联）| Subscribe to ray source status changed event
            _eventAggregator.GetEvent<RaySourceStatusChangedEvent>().Subscribe(OnRaySourceStatusChangedFromDevice);
        }

        /// <summary>
        /// 初始化射线源（射线源类型从配置文件读取）| Initialize X-ray source (source type read from configuration)
        /// </summary>
        public XRayResult Initialize()
        {
            var sourceType = _config.SourceType;
            lock (_lockObj)
            {
                try
                {
                    _logger.Info("开始初始化射线源，类型: {SourceType} | Starting X-ray source initialization, type: {SourceType}", sourceType);

                    if (IsInitialized)
                    {
                        _logger.Warn("射线源已初始化，请勿重复初始化 | X-ray source already initialized");
                        return XRayResult.Error("射线源已初始化，请勿重复初始化");
                    }

                    // 验证配置 | Validate configuration
                    _logger.Debug("验证配置参数 | Validating configuration parameters");
                    var (isValid, errorMessage) = _config.Validate();
                    if (!isValid)
                    {
                        _logger.Error(null, "配置验证失败: {ErrorMessage} | Configuration validation failed: {ErrorMessage}", errorMessage);
                        return XRayResult.Error($"配置验证失败: {errorMessage}");
                    }

                    // 复用已有实例或创建新实例 | Reuse existing instance or create new one
                    if (_currentSource == null)
                    {
                        _logger.Debug("创建射线源实例: {SourceType} | Creating X-ray source instance: {SourceType}", sourceType);
                        _currentSource = _factory.CreateRaySource(sourceType);
                        if (_currentSource == null)
                        {
                            _logger.Error(null, "创建射线源实例失败: {SourceType} | Failed to create X-ray source instance: {SourceType}", sourceType);
                            return XRayResult.Error($"创建射线源实例失败: {sourceType}");
                        }
                    }
                    else
                    {
                        _logger.Debug("复用已有射线源实例 | Reusing existing X-ray source instance");
                    }

                    // 初始化射线源 | Initialize X-ray source
                    _logger.Info("调用射线源初始化方法 | Calling X-ray source initialization method");
                    var result = _currentSource.Initialize();
                    if (result.Success)
                    {
                        _isInitializedFlag = true;
                        _logger.Info("射线源初始化成功: {SourceType} | X-ray source initialized successfully: {SourceType}", sourceType);
                    }
                    else
                    {
                        _logger.Error(null, "射线源初始化失败: {ErrorMessage} | X-ray source initialization failed: {ErrorMessage}", result.ErrorMessage);
                    }

                    return result;
                }
                catch (Exception ex)
                {
                    var errorMsg = $"初始化异常: {ex.Message}";
                    _logger.Error(ex, "射线源初始化异常: {Message} | X-ray source initialization exception: {Message}", ex.Message);
                    _eventAggregator.GetEvent<ErrorOccurredEvent>().Publish(errorMsg);
                    return XRayResult.Error(errorMsg);
                }
            }
        }

        /// <summary>
        /// 连接 PVI 变量并启动实时状态通讯 | Connect PVI variables and start real-time status communication
        /// 必须在 Initialize 成功后、TurnOn 之前调用 | Must be called after Initialize succeeds and before TurnOn
        /// </summary>
        public XRayResult ConnectVariables()
        {
            if (!IsInitialized || _currentSource == null)
            {
                _logger.Warn("射线源未初始化，无法连接变量 | X-ray source not initialized, cannot connect variables");
                return XRayResult.Error("射线源未初始化，无法连接变量");
            }

            lock (_lockObj)
            {
                try
                {
                    _logger.Info("开始连接 PVI 变量 | Starting PVI variable connection");
                    var result = _currentSource.ConnectVariables();

                    if (result.Success)
                    {
                        _logger.Info("PVI 变量连接命令已发送，等待设备层确认 | PVI variable connection command sent, waiting for device confirmation");
                    }
                    else
                    {
                        _logger.Error(null, "PVI 变量连接失败: {ErrorMessage} | PVI variable connection failed: {ErrorMessage}", result.ErrorMessage);
                    }

                    return result;
                }
                catch (Exception ex)
                {
                    var errorMsg = $"连接变量异常: {ex.Message}";
                    _logger.Error(ex, "连接变量异常: {Message} | Connect variables exception: {Message}", ex.Message);
                    _eventAggregator.GetEvent<ErrorOccurredEvent>().Publish(errorMsg);
                    return XRayResult.Error(errorMsg);
                }
            }
        }

        /// <summary>
        /// 开启射线 | Turn on X-ray
        /// </summary>
        public XRayResult TurnOn()
        {
            // 业务规则校验：未初始化禁止操作 | Business rule: operation forbidden if not initialized
            if (!IsInitialized || _currentSource == null)
            {
                _logger.Warn("射线源未初始化，无法开启射线 | X-ray source not initialized, cannot turn on");
                return XRayResult.Error("射线源未初始化，无法开启射线");
            }

            // 快速检查：已开启则直接返回，避免不必要的锁竞争 | Quick check: return early if already opened
            if (CurrentStatus == RaySourceStatus.Opened)
            {
                _logger.Warn("射线已处于开启状态，忽略重复请求 | X-ray already opened, ignoring duplicate request");
                return XRayResult.Ok("射线已开启");
            }

            lock (_lockObj)
            {
                try
                {
                    // 获取锁后再次检查状态，防止重复开启 | Double-check status after acquiring lock
                    if (CurrentStatus == RaySourceStatus.Opened)
                    {
                        _logger.Warn("射线已处于开启状态，忽略重复请求 | X-ray already opened, ignoring duplicate request");
                        return XRayResult.Ok("射线已开启");
                    }

                    _logger.Info("开始开启射线 | Starting to turn on X-ray");
                    var result = _currentSource.TurnOn();

                    if (result.Success)
                    {
                        CurrentStatus = RaySourceStatus.Opened;
                        _logger.Info("射线开启成功，状态更新为 Opened | X-ray turned on successfully, status updated to Opened");
                        _eventAggregator.GetEvent<RaySourceStatusChangedEvent>().Publish(CurrentStatus);
                        // 灯丝记录由 OnRaySourceStatusChangedFromDevice 统一处理，避免重复调用
                    }
                    else
                    {
                        _logger.Error(null, "射线开启失败: {ErrorMessage} | X-ray turn on failed: {ErrorMessage}", result.ErrorMessage);
                    }

                    return result;
                }
                catch (Exception ex)
                {
                    _logger.Error(ex, "开启射线异常: {Message} | Exception turning on X-ray: {Message}", ex.Message);
                    throw;
                }
            }
        }

        /// <summary>
        /// 关闭射线 | Turn off X-ray
        /// </summary>
        public XRayResult TurnOff()
        {
            // 业务规则校验：未初始化禁止操作 | Business rule: operation forbidden if not initialized
            if (!IsInitialized || _currentSource == null)
            {
                _logger.Warn("射线源未初始化，无法关闭射线 | X-ray source not initialized, cannot turn off");
                return XRayResult.Error("射线源未初始化，无法关闭射线");
            }

            // 快速检查：已关闭则直接返回，避免不必要的锁竞争 | Quick check: return early if already closed
            if (CurrentStatus == RaySourceStatus.Closed)
            {
                _logger.Warn("射线已处于关闭状态，忽略重复请求 | X-ray already closed, ignoring duplicate request");
                return XRayResult.Ok("射线已关闭");
            }

            lock (_lockObj)
            {
                try
                {
                    // 获取锁后再次检查状态，防止重复关闭 | Double-check status after acquiring lock
                    if (CurrentStatus == RaySourceStatus.Closed)
                    {
                        _logger.Warn("射线已处于关闭状态，忽略重复请求 | X-ray already closed, ignoring duplicate request");
                        return XRayResult.Ok("射线已关闭");
                    }

                    _logger.Info("开始关闭射线 | Starting to turn off X-ray");
                    var result = _currentSource.TurnOff();

                    if (result.Success)
                    {
                        CurrentStatus = RaySourceStatus.Closed;
                        _logger.Info("射线关闭成功，状态更新为 Closed | X-ray turned off successfully, status updated to Closed");
                        _eventAggregator.GetEvent<RaySourceStatusChangedEvent>().Publish(CurrentStatus);
                        // 灯丝记录由 OnRaySourceStatusChangedFromDevice 统一处理，避免重复调用
                    }
                    else
                    {
                        _logger.Error(null, "射线关闭失败: {ErrorMessage} | X-ray turn off failed: {ErrorMessage}", result.ErrorMessage);
                    }

                    return result;
                }
                catch (Exception ex)
                {
                    _logger.Error(ex, "关闭射线异常: {Message} | Exception turning off X-ray: {Message}", ex.Message);
                    throw;
                }
            }
        }

        /// <summary>
        /// 断开射线源连接（保留实例以便重连）| Disconnect X-ray source (retain instance for reconnection)
        /// </summary>
        public XRayResult Disconnect()
        {
            lock (_lockObj)
            {
                try
                {
                    _logger.Info("开始断开射线源连接 | Starting X-ray source disconnection");

                    if (_currentSource == null)
                    {
                        _logger.Warn("射线源实例不存在，无需断开 | X-ray source instance does not exist, no need to disconnect");
                        _isInitializedFlag = false;
                        CurrentStatus = RaySourceStatus.Unavailable;
                        _eventAggregator.GetEvent<RaySourceStatusChangedEvent>().Publish(CurrentStatus);
                        return XRayResult.Ok("射线源已断开");
                    }

                    // 同步调用 CloseOff 进行优雅关闭 | Call CloseOff for graceful shutdown
                    try
                    {
                        var closeResult = _currentSource.CloseOff();
                        if (!closeResult.Success)
                        {
                            _logger.Warn("优雅关闭返回失败: {ErrorMessage} | Graceful shutdown returned failure: {ErrorMessage}", closeResult.ErrorMessage);
                        }
                    }
                    catch (Exception ex)
                    {
                        _logger.Warn("优雅关闭异常: {Message} | Graceful shutdown exception: {Message}", ex.Message);
                    }

                    // 不 Dispose 实例，保留 PVI Service 以便重连 | Don't dispose instance, retain PVI Service for reconnection
                    _isInitializedFlag = false;
                    CurrentStatus = RaySourceStatus.Unavailable;

                    // 断开连接时停止灯丝使用记录 | Stop filament usage recording on disconnect
                    if (_filamentLifetimeService.IsInitialized && _filamentLifetimeService.IsFilamentOn)
                    {
                        _filamentLifetimeService.StopFilamentUsage();
                        _lastFilamentRecordedStatus = RaySourceStatus.Unavailable;
                    }

                    _logger.Info("射线源连接已断开，状态更新为 Unavailable | X-ray source disconnected, status updated to Unavailable");
                    _eventAggregator.GetEvent<RaySourceStatusChangedEvent>().Publish(CurrentStatus);
                    return XRayResult.Ok();
                }
                catch (Exception ex)
                {
                    var errorMsg = $"断开连接异常: {ex.Message}";
                    _logger.Error(ex, "射线源断开连接异常: {Message} | X-ray source disconnection exception: {Message}", ex.Message);
                    _eventAggregator.GetEvent<ErrorOccurredEvent>().Publish(errorMsg);
                    return XRayResult.Error(errorMsg);
                }
            }
        }

        /// <summary>
        /// 紧急关闭（最高优先级，强制中断所有操作）| Emergency shutdown (highest priority, force interrupt all operations)
        /// </summary>
        public XRayResult EmergencyShutdown()
        {
            try
            {
                _logger.Warn("执行紧急关闭程序 | Executing emergency shutdown");

                if (_currentSource != null)
                {
                    // 先关闭射线 | Turn off X-ray first
                    _logger.Info("紧急关闭：关闭射线 | Emergency shutdown: turning off X-ray");
                    _currentSource.TurnOff();

                    // 完全关闭设备 | Fully shut down device
                    _logger.Info("紧急关闭：完全关闭设备 | Emergency shutdown: fully shutting down device");
                    _currentSource.CloseOff();
                }

                _isInitializedFlag = false;
                CurrentStatus = RaySourceStatus.Unavailable;

                // 紧急关闭时停止灯丝使用记录 | Stop filament usage recording on emergency shutdown
                if (_filamentLifetimeService.IsInitialized && _filamentLifetimeService.IsFilamentOn)
                {
                    _filamentLifetimeService.StopFilamentUsage();
                    _lastFilamentRecordedStatus = RaySourceStatus.Unavailable;
                }

                _logger.Info("紧急关闭完成，状态更新为 Unavailable | Emergency shutdown completed, status updated to Unavailable");
                _eventAggregator.GetEvent<RaySourceStatusChangedEvent>().Publish(CurrentStatus);
                _eventAggregator.GetEvent<OperationResultEvent>()
                    .Publish(new OperationResultData("紧急关闭", true, "紧急关闭完成"));

                return XRayResult.Ok("紧急关闭完成");
            }
            catch (Exception ex)
            {
                var errorMsg = $"紧急关闭异常: {ex.Message}";
                _logger.Error(ex, "紧急关闭异常: {Message} | Emergency shutdown exception: {Message}", ex.Message);
                _eventAggregator.GetEvent<ErrorOccurredEvent>().Publish(errorMsg);
                return XRayResult.Error(errorMsg);
            }
        }

        /// <summary>
        /// 设置电压 | Set voltage
        /// </summary>
        public XRayResult SetVoltage(float voltage)
        {
            // 业务规则校验：未初始化禁止操作 | Business rule: operation forbidden if not initialized
            if (!IsInitialized || _currentSource == null)
            {
                _logger.Warn("射线源未初始化，无法设置电压 | X-ray source not initialized, cannot set voltage");
                return XRayResult.Error("射线源未初始化，无法设置电压");
            }

            // 参数范围校验 | Parameter range validation
            if (voltage < _config.MinVoltage || voltage > _config.MaxVoltage)
            {
                _logger.Warn("电压参数超出范围: {Voltage}kV，有效范围: {Min}-{Max}kV | Voltage out of range: {Voltage}kV, valid range: {Min}-{Max}kV", voltage, _config.MinVoltage, _config.MaxVoltage);
                return XRayResult.Error($"电压参数超出范围：{_config.MinVoltage}-{_config.MaxVoltage}kV");
            }

            lock (_lockObj)
            {
                try
                {
                    _logger.Info("设置电压: {Voltage}kV | Setting voltage: {Voltage}kV", voltage);
                    var result = _currentSource.SetVoltage(voltage);

                    if (result.Success)
                    {
                        _logger.Info("电压设置成功: {Voltage}kV | Voltage set successfully: {Voltage}kV", voltage);
                    }
                    else
                    {
                        _logger.Error(null, "电压设置失败: {ErrorMessage} | Voltage setting failed: {ErrorMessage}", result.ErrorMessage);
                    }

                    return result;
                }
                catch (Exception ex)
                {
                    _logger.Error(ex, "设置电压异常: {Message} | Exception setting voltage: {Message}", ex.Message);
                    throw;
                }
            }
        }

        /// <summary>
        /// 设置电流 | Set current
        /// </summary>
        public XRayResult SetCurrent(float current)
        {
            // 业务规则校验：未初始化禁止操作 | Business rule: operation forbidden if not initialized
            if (!IsInitialized || _currentSource == null)
            {
                _logger.Warn("射线源未初始化，无法设置电流 | X-ray source not initialized, cannot set current");
                return XRayResult.Error("射线源未初始化，无法设置电流");
            }

            // 参数范围校验 | Parameter range validation
            if (current < _config.MinCurrent || current > _config.MaxCurrent)
            {
                _logger.Warn("电流参数超出范围: {Current}μA，有效范围: {Min}-{Max}μA | Current out of range: {Current}μA, valid range: {Min}-{Max}μA", current, _config.MinCurrent, _config.MaxCurrent);
                return XRayResult.Error($"电流参数超出范围：{_config.MinCurrent}-{_config.MaxCurrent}μA");
            }

            lock (_lockObj)
            {
                try
                {
                    _logger.Info("设置电流: {Current}μA | Setting current: {Current}μA", current);
                    var result = _currentSource.SetCurrent(current);

                    if (result.Success)
                    {
                        _logger.Info("电流设置成功: {Current}μA | Current set successfully: {Current}μA", current);
                    }
                    else
                    {
                        _logger.Error(null, "电流设置失败: {ErrorMessage} | Current setting failed: {ErrorMessage}", result.ErrorMessage);
                    }

                    return result;
                }
                catch (Exception ex)
                {
                    _logger.Error(ex, "设置电流异常: {Message} | Exception setting current: {Message}", ex.Message);
                    throw;
                }
            }
        }

        /// <summary>
        /// 读取实际电压 | Read actual voltage
        /// </summary>
        public XRayResult ReadVoltage()
        {
            if (!IsInitialized || _currentSource == null)
            {
                _logger.Warn("射线源未初始化，无法读取电压 | X-ray source not initialized, cannot read voltage");
                return XRayResult.Error("射线源未初始化");
            }

            try
            {
                _logger.Debug("读取实际电压 | Reading actual voltage");
                var result = _currentSource.ReadVoltage();

                if (result.Success)
                {
                    _logger.Debug("电压读取成功: {Data}kV | Voltage read successfully: {Data}kV", result.Data);
                }
                else
                {
                    _logger.Warn("电压读取失败: {ErrorMessage} | Voltage reading failed: {ErrorMessage}", result.ErrorMessage);
                }

                return result;
            }
            catch (Exception ex)
            {
                _logger.Error(ex, "读取电压异常: {Message} | Exception reading voltage: {Message}", ex.Message);
                throw;
            }
        }

        /// <summary>
        /// 读取实际电流 | Read actual current
        /// </summary>
        public XRayResult ReadCurrent()
        {
            if (!IsInitialized || _currentSource == null)
            {
                _logger.Warn("射线源未初始化，无法读取电流 | X-ray source not initialized, cannot read current");
                return XRayResult.Error("射线源未初始化");
            }

            try
            {
                _logger.Debug("读取实际电流 | Reading actual current");
                var result = _currentSource.ReadCurrent();

                if (result.Success)
                {
                    _logger.Debug("电流读取成功: {Data}μA | Current read successfully: {Data}μA", result.Data);
                }
                else
                {
                    _logger.Warn("电流读取失败: {ErrorMessage} | Current reading failed: {ErrorMessage}", result.ErrorMessage);
                }

                return result;
            }
            catch (Exception ex)
            {
                _logger.Error(ex, "读取电流异常: {Message} | Exception reading current: {Message}", ex.Message);
                throw;
            }
        }

        /// <summary>
        /// 读取系统状态 | Read system status
        /// </summary>
        public XRayResult ReadSystemStatus()
        {
            if (!IsInitialized || _currentSource == null)
            {
                _logger.Warn("射线源未初始化，无法读取系统状态 | X-ray source not initialized, cannot read system status");
                return XRayResult.Error("射线源未初始化");
            }

            try
            {
                _logger.Debug("读取系统状态 | Reading system status");
                return _currentSource.ReadSystemStatus();
            }
            catch (Exception ex)
            {
                _logger.Error(ex, "读取系统状态异常: {Message} | Exception reading system status: {Message}", ex.Message);
                throw;
            }
        }

        /// <summary>
        /// 检查错误 | Check errors
        /// </summary>
        public XRayResult CheckErrors()
        {
            if (!IsInitialized || _currentSource == null)
            {
                _logger.Warn("射线源未初始化，无法检查错误 | X-ray source not initialized, cannot check errors");
                return XRayResult.Error("射线源未初始化");
            }

            try
            {
                _logger.Debug("检查错误状态 | Checking error status");
                return _currentSource.CheckErrors();
            }
            catch (Exception ex)
            {
                _logger.Error(ex, "检查错误异常: {Message} | Exception checking errors: {Message}", ex.Message);
                throw;
            }
        }

        /// <summary>
        /// 清除错误 | Clear errors
        /// </summary>
        public XRayResult ClearErrors()
        {
            if (!IsInitialized || _currentSource == null)
            {
                _logger.Warn("射线源未初始化，无法清除错误 | X-ray source not initialized, cannot clear errors");
                return XRayResult.Error("射线源未初始化");
            }

            try
            {
                _logger.Info("开始清除错误 | Starting to clear errors");

                _eventAggregator.GetEvent<OperationResultEvent>()
                    .Publish(new OperationResultData("清除错误", true));

                _logger.Info("错误清除完成 | Errors cleared successfully");
                return XRayResult.Ok("错误已清除");
            }
            catch (Exception ex)
            {
                var errorMsg = $"清除错误失败: {ex.Message}";
                _logger.Error(ex, "清除错误异常: {Message} | Exception clearing errors: {Message}", ex.Message);
                _eventAggregator.GetEvent<ErrorOccurredEvent>().Publish(errorMsg);
                return XRayResult.Error(errorMsg);
            }
        }

        /// <summary>
        /// TXI 开启 | TXI On
        /// </summary>
        public XRayResult TxiOn()
        {
            if (!IsConnected || _currentSource == null)
            {
                _logger.Warn("射线源未连接，无法执行 TXI ON | X-ray source not connected, cannot execute TXI ON");
                return XRayResult.Error("射线源未连接");
            }

            lock (_lockObj)
            {
                try
                {
                    _logger.Info("开始执行 TXI ON | Starting TXI ON");
                    var result = _currentSource.TxiOn();
                    if (result.Success)
                    {
                        _logger.Info("TXI ON 执行成功 | TXI ON executed successfully");
                    }
                    else
                    {
                        _logger.Error(null, "TXI ON 执行失败: {ErrorMessage} | TXI ON failed: {ErrorMessage}", result.ErrorMessage);
                    }
                    return result;
                }
                catch (Exception ex)
                {
                    _logger.Error(ex, "TXI ON 异常: {Message} | TXI ON exception: {Message}", ex.Message);
                    return XRayResult.Error($"TXI ON 异常：{ex.Message}");
                }
            }
        }

        /// <summary>
        /// TXI 关闭 | TXI Off
        /// </summary>
        public XRayResult TxiOff()
        {
            if (!IsConnected || _currentSource == null)
            {
                _logger.Warn("射线源未连接，无法执行 TXI OFF | X-ray source not connected, cannot execute TXI OFF");
                return XRayResult.Error("射线源未连接");
            }

            lock (_lockObj)
            {
                try
                {
                    _logger.Info("开始执行 TXI OFF | Starting TXI OFF");
                    var result = _currentSource.TxiOff();
                    if (result.Success)
                    {
                        _logger.Info("TXI OFF 执行成功 | TXI OFF executed successfully");
                    }
                    else
                    {
                        _logger.Error(null, "TXI OFF 执行失败: {ErrorMessage} | TXI OFF failed: {ErrorMessage}", result.ErrorMessage);
                    }
                    return result;
                }
                catch (Exception ex)
                {
                    _logger.Error(ex, "TXI OFF 异常: {Message} | TXI OFF exception: {Message}", ex.Message);
                    return XRayResult.Error($"TXI OFF 异常：{ex.Message}");
                }
            }
        }

        /// <summary>
        /// 暖机设置 | Warm-up setting
        /// </summary>
        public XRayResult WarmUp()
        {
            if (!IsConnected || _currentSource == null)
            {
                _logger.Warn("射线源未连接，无法执行暖机 | X-ray source not connected, cannot execute warm-up");
                return XRayResult.Error("射线源未连接");
            }

            lock (_lockObj)
            {
                try
                {
                    _logger.Info("开始执行暖机设置 | Starting warm-up setting");
                    var result = _currentSource.WarmUp();
                    if (result.Success)
                    {
                        _logger.Info("暖机设置已发送 | Warm-up setting sent successfully");
                    }
                    else
                    {
                        _logger.Error(null, "暖机设置失败: {ErrorMessage} | Warm-up setting failed: {ErrorMessage}", result.ErrorMessage);
                    }
                    return result;
                }
                catch (Exception ex)
                {
                    _logger.Error(ex, "暖机设置异常: {Message} | Warm-up setting exception: {Message}", ex.Message);
                    return XRayResult.Error($"暖机设置异常：{ex.Message}");
                }
            }
        }

        /// <summary>
        /// 训机设置 | Training setting
        /// </summary>
        public XRayResult Training()
        {
            if (!IsConnected || _currentSource == null)
            {
                _logger.Warn("射线源未连接，无法执行训机 | X-ray source not connected, cannot execute training");
                return XRayResult.Error("射线源未连接");
            }

            lock (_lockObj)
            {
                try
                {
                    _logger.Info("开始执行训机设置 | Starting training setting");
                    var result = _currentSource.Training();
                    if (result.Success)
                    {
                        _logger.Info("训机设置已发送 | Training setting sent successfully");
                    }
                    else
                    {
                        _logger.Error(null, "训机设置失败: {ErrorMessage} | Training setting failed: {ErrorMessage}", result.ErrorMessage);
                    }
                    return result;
                }
                catch (Exception ex)
                {
                    _logger.Error(ex, "训机设置异常: {Message} | Training setting exception: {Message}", ex.Message);
                    return XRayResult.Error($"训机设置异常：{ex.Message}");
                }
            }
        }

        /// <summary>
        /// 灯丝校准 | Filament calibration
        /// </summary>
        public XRayResult FilamentCalibration()
        {
            if (!IsConnected || _currentSource == null)
            {
                _logger.Warn("射线源未连接，无法执行灯丝校准 | X-ray source not connected, cannot execute filament calibration");
                return XRayResult.Error("射线源未连接");
            }

            lock (_lockObj)
            {
                try
                {
                    _logger.Info("开始执行灯丝校准 | Starting filament calibration");
                    var result = _currentSource.FilamentCalibration();
                    if (result.Success)
                    {
                        _logger.Info("灯丝校准已发送 | Filament calibration sent successfully");
                    }
                    else
                    {
                        _logger.Error(null, "灯丝校准失败: {ErrorMessage} | Filament calibration failed: {ErrorMessage}", result.ErrorMessage);
                    }
                    return result;
                }
                catch (Exception ex)
                {
                    _logger.Error(ex, "灯丝校准异常: {Message} | Filament calibration exception: {Message}", ex.Message);
                    return XRayResult.Error($"灯丝校准异常：{ex.Message}");
                }
            }
        }

        /// <summary>
        /// 全部电压自动定心 | Auto-center all voltages
        /// </summary>
        public XRayResult AutoCenter()
        {
            if (!IsConnected || _currentSource == null)
            {
                _logger.Warn("射线源未连接，无法执行自动定心 | X-ray source not connected, cannot execute auto-center");
                return XRayResult.Error("射线源未连接");
            }

            lock (_lockObj)
            {
                try
                {
                    _logger.Info("开始执行全部电压自动定心 | Starting auto-center all voltages");
                    var result = _currentSource.AutoCenter();
                    if (result.Success)
                    {
                        _logger.Info("自动定心已发送 | Auto-center sent successfully");
                    }
                    else
                    {
                        _logger.Error(null, "自动定心失败: {ErrorMessage} | Auto-center failed: {ErrorMessage}", result.ErrorMessage);
                    }
                    return result;
                }
                catch (Exception ex)
                {
                    _logger.Error(ex, "自动定心异常: {Message} | Auto-center exception: {Message}", ex.Message);
                    return XRayResult.Error($"自动定心异常：{ex.Message}");
                }
            }
        }

        /// <summary>
        /// 设置功率模式 | Set power mode
        /// </summary>
        /// <param name="mode">功率模式值：1=Micro Focus，2=High Power</param>
        public XRayResult SetPowerMode(int mode)
        {
            if (!IsConnected || _currentSource == null)
            {
                _logger.Warn("射线源未连接，无法设置功率模式 | X-ray source not connected, cannot set power mode");
                return XRayResult.Error("射线源未连接");
            }

            lock (_lockObj)
            {
                try
                {
                    _logger.Info("开始设置功率模式: Mode={Mode} | Starting to set power mode: Mode={Mode}", mode);
                    var result = _currentSource.SetPowerMode(mode);
                    if (result.Success)
                    {
                        _logger.Info("功率模式设置成功: Mode={Mode} | Power mode set successfully: Mode={Mode}", mode);
                    }
                    else
                    {
                        _logger.Error(null, "功率模式设置失败: {ErrorMessage} | Power mode setting failed: {ErrorMessage}", result.ErrorMessage);
                    }
                    return result;
                }
                catch (Exception ex)
                {
                    _logger.Error(ex, "功率模式设置异常: {Message} | Power mode setting exception: {Message}", ex.Message);
                    return XRayResult.Error($"功率模式设置异常：{ex.Message}");
                }
            }
        }

        /// <summary>
        /// 异步执行初始化 + 连接变量的完整流程 | Async full sequence: Initialize + ConnectVariables
        /// </summary>
        public async Task<XRayResult> InitializeAndConnectAsync()
        {
            return await Task.Run(() =>
            {
                try
                {
                    // 步骤1：初始化 | Step 1: Initialize
                    if (!IsInitialized)
                    {
                        _logger.Info("自动初始化：执行 Initialize | Auto-init: executing Initialize");
                        var initResult = Initialize();
                        if (!initResult.Success)
                        {
                            _logger.Warn("自动初始化失败: {Error} | Auto-initialization failed: {Error}", initResult.ErrorMessage);
                            return initResult;
                        }
                        _logger.Info("自动初始化成功 | Auto-initialization succeeded");
                    }

                    // 步骤2：连接变量 | Step 2: Connect Variables
                    if (!IsConnected)
                    {
                        _logger.Info("自动连接变量：执行 ConnectVariables | Auto-init: executing ConnectVariables");
                        var connectResult = ConnectVariables();
                        if (!connectResult.Success)
                        {
                            _logger.Warn("自动连接变量失败: {Error} | Auto connect variables failed: {Error}", connectResult.ErrorMessage);
                            return connectResult;
                        }
                        _logger.Info("自动连接变量成功 | Auto connect variables succeeded");
                    }

                    _logger.Info("自动初始化流程完成 | Auto-initialization sequence completed");
                    return XRayResult.Ok();
                }
                catch (Exception ex)
                {
                    _logger.Error(ex, "自动初始化流程异常: {Message} | Auto-initialization sequence exception: {Message}", ex.Message);
                    return XRayResult.Error($"自动初始化异常: {ex.Message}");
                }
            });
        }

        /// <summary>
        /// 射线源状态变更事件处理（设备层回调）| Ray source status changed event handler (device callback)
        /// </summary>
        private void OnRaySourceStatusChangedFromDevice(RaySourceStatus newStatus)
        {
            // 更新当前状态（IsXRayOn 由 CurrentStatus 自动派生）| Update current status (IsXRayOn is auto-derived from CurrentStatus)
            CurrentStatus = newStatus;
            _logger.Info("服务层状态更新: {Status} | Service layer status updated: {Status}", newStatus);

            // 根据射线源状态变更记录灯丝使用（带去重，防止设备推送抖动）| Record filament usage with dedup
            if (_filamentLifetimeService.IsInitialized && newStatus != _lastFilamentRecordedStatus)
            {
                if (newStatus == RaySourceStatus.Opened && !_filamentLifetimeService.IsFilamentOn)
                {
                    if (_filamentLifetimeService.StartFilamentUsage())
                        _lastFilamentRecordedStatus = newStatus;
                }
                else if (newStatus != RaySourceStatus.Opened && _filamentLifetimeService.IsFilamentOn)
                {
                    if (_filamentLifetimeService.StopFilamentUsage())
                        _lastFilamentRecordedStatus = newStatus;
                }
            }

            if (newStatus == RaySourceStatus.Unavailable && _isInitializedFlag)
            {
                // 异常断联处理 | Handle unexpected disconnection
                _logger.Error(null, "服务层检测到连接丢失（状态变为 Unavailable）| Service layer detected connection lost (status changed to Unavailable)");
                _isInitializedFlag = false;

                // 通知 UI 更新状态 | Notify UI to update status
                _eventAggregator.GetEvent<StatusUpdatedEvent>().Publish(new SystemStatusData
                {
                    IsXRayOn = false,
                    ActualVoltage = 0,
                    ActualCurrent = 0
                });
            }
        }

        /// <summary>
        /// 释放资源 | Dispose resources
        /// </summary>
        public void Dispose()
        {
            if (_isDisposed)
                return;

            try
            {
                // 先执行紧急关闭 | Execute emergency shutdown first
                EmergencyShutdown();

                // 释放射线源实例 | Dispose X-ray source instance
                _currentSource?.Dispose();
                _currentSource = null;

                _isDisposed = true;
                _logger.Info("服务层资源已释放 | Service layer resources disposed");
            }
            catch (Exception ex)
            {
                _logger.Warn("服务层资源释放异常: {Message} | Service layer resource disposal exception: {Message}", ex.Message);
            }
        }
    }
}