using CapMachine.Core;
using CapMachine.Wpf.Models.PPCalc;
using CapMachine.Wpf.Models.Tag;
using CapMachine.Wpf.PPCalculation;
using ImTools;
using MaterialDesignThemes.Wpf;
using NLog;
using NPOI.XWPF.UserModel;
using Prism.Events;
using Prism.Mvvm;
using Prism.Services.Dialogs;
using SixLabors.ImageSharp.ColorSpaces;
using System.Collections.Generic;
using System.Text;

namespace CapMachine.Wpf.Services
{
    /// <summary>
    /// 物性计算的服务
    /// </summary>
    public class PPCService : BindableBase
    {
        /// <summary>
        /// 计算扫描 Task
        /// </summary>
        private static Task CalcTask { get; set; }
        private static int _scanLoopStarted;
        public ConfigService ConfigService { get; }

        private IEventAggregator _EventAggregator { get; set; }
        public DataRecordService DataRecordService { get; }
        public SysRunService SysRunServer { get; }
        public ILogService Logger { get; }
        public MachineRtDataService MachineRtDataService { get; }
        public IDialogService DialogService { get; }

        private readonly PPCSuperheatSubcoolCalculator _superheatSubcoolCalculator;
        private readonly PPCThermodynamicSixResultsCalculator _thermodynamicSixResultsCalculator;

        /// <summary>
        /// 标签中心
        /// </summary>
        public TagManager TagManager { get; set; }

        /// <summary>
        /// 实例化
        /// </summary>
        public PPCService(ConfigService configService, IEventAggregator eventAggregator,
            DataRecordService dataRecordService, SysRunService sysRunService, ILogService logService,
            MachineRtDataService machineRtDataService, IDialogService dialogService
            )
        {
            ConfigService = configService;
            //事件服务
            _EventAggregator = eventAggregator;
            DataRecordService = dataRecordService;
            SysRunServer = sysRunService;
            Logger = logService;
            MachineRtDataService = machineRtDataService;
            DialogService = dialogService;
            TagManager = MachineRtDataService.TagManger;

            SpeedTag = TagManager.DicTags.GetValueOrDefault("转速[rpm]");

            ExPressTag = TagManager.DicTags.GetValueOrDefault("排气压力[BarA]");

            ExTempTag = TagManager.DicTags.GetValueOrDefault("排气温度[℃]");

            HVPwTag = TagManager.DicTags.GetValueOrDefault("HV[W]");

            InhPressTag = TagManager.DicTags.GetValueOrDefault("吸气压力[BarA]");

            InhTempTag = TagManager.DicTags.GetValueOrDefault("吸气温度[℃]");

            //InhTempTag = TagManager.DicTags.GetValueOrDefault("吸气温度[℃]")!;
            //ComCapBusVolTag = TagManager.DicTags.GetValueOrDefault("通讯母线电压[V]");
            //ComCapBusCurTag = TagManager.DicTags.GetValueOrDefault("通讯母线电流[A]");
            //ComCapPwTag = TagManager.DicTags.GetValueOrDefault("通讯功率[W]");
            //OS2TempTag = TagManager.DicTags.GetValueOrDefault("吸气混合器温度[℃]");

            //TxvFrTempTag = TagManager.DicTags.GetValueOrDefault("膨胀阀前温度[℃]")!;
            //TxvFrPressTag = TagManager.DicTags.GetValueOrDefault("膨胀阀前压力[BarA]")!;

            TxvFrTempTag = TagManager.DicTags.GetValueOrDefault("膨胀阀前温度[℃]");

            TxvFrPressTag = TagManager.DicTags.GetValueOrDefault("膨胀阀前压力[BarA]");

            LiqRefFlowTag = TagManager.DicTags.GetValueOrDefault("液冷媒流量[kg/h]");

            //kg/h 

            VRVTag = TagManager.DicTags.GetValueOrDefault("冷媒流量[kg/h]");

            //润滑油流量

            LubeFlowTag = TagManager.DicTags.GetValueOrDefault("润滑油流量[kg/h]");


            //Cond1TempTag = TagManager.DicTags.GetValueOrDefault("冷凝器出口水温[℃]");
            //CondInTempTag = TagManager.DicTags.GetValueOrDefault("冷凝器进口温度[℃]");

            //Superheat = TagManager.DicTags.GetValueOrDefault("过热度[K]");
            //Subcool = TagManager.DicTags.GetValueOrDefault("过冷度[K]");

            Superheat = TagManager.DicTags.GetValueOrDefault("过热度[K]");

            Subcool = TagManager.DicTags.GetValueOrDefault("过冷度[K]");

            HeatingCapacity = TagManager.DicTags.GetValueOrDefault("制热量Qh[W]");
            COPHeat = TagManager.DicTags.GetValueOrDefault("压缩机性能系数(制热)");
            IsentrpEff = TagManager.DicTags.GetValueOrDefault("等熵效率ns[%]");
            CoolCapacity = TagManager.DicTags.GetValueOrDefault("制冷量Qc[W]");
            COPCool = TagManager.DicTags.GetValueOrDefault("压缩机性能系数(制冷)");
            VoltricEff = TagManager.DicTags.GetValueOrDefault("容积效率nv[%]");


            SuperHeatCoolConfig.FluidsPath = ConfigHelper.GetValue("FluidsPath");
            SuperHeatCoolConfig.Cryogen = ConfigHelper.GetValue("Cryogen");

            _superheatSubcoolCalculator = new PPCSuperheatSubcoolCalculator();
            _thermodynamicSixResultsCalculator = new PPCThermodynamicSixResultsCalculator();

            RtScanDeviceStart();
        }

        /// <summary>
        /// 当前的配置
        /// </summary>
        public SuperHeatCoolConfigModel SuperHeatCoolConfig { get; set; } = new SuperHeatCoolConfigModel();

        /// <summary>
        /// 保存配置信息
        /// </summary>
        public void SaveSuperHeatCoolConfig()
        {
            ConfigHelper.SetValue("FluidsPath", SuperHeatCoolConfig.FluidsPath);
            ConfigHelper.SetValue("Cryogen", SuperHeatCoolConfig.Cryogen);
        }

        /// <summary>
        /// 吸气压力
        /// </summary>
        public ITag InhPressTag { get; set; }

        /// <summary>
        /// 转速标签
        /// </summary>
        public ITag? SpeedTag { get; set; }

        /// <summary>
        /// 排气压力
        /// </summary>
        public ITag? ExPressTag { get; set; }

        /// <summary>
        /// 排气温度
        /// </summary>
        public ITag? ExTempTag { get; set; }

        /// <summary>
        /// 压缩机功率（HV 电源）
        /// </summary>
        public ITag? HVPwTag { get; set; }

        /// <summary>
        /// 吸气温度
        /// </summary>
        public ITag InhTempTag { get; set; }

        /// <summary>
        /// 液体阀前温度
        /// </summary>
        public ITag TxvFrTempTag { get; set; }

        /// <summary>
        /// 液体阀前压力
        /// </summary>
        public ITag TxvFrPressTag { get; set; }

        /// <summary>
        /// 过热度
        /// </summary>
        public ITag Superheat { get; set; }

        /// <summary>
        /// 过冷度
        /// </summary>
        public ITag Subcool { get; set; }

        /// <summary>
        /// 干度（无量纲 [-]）
        /// </summary>
        public ITag DrynessTag { get; set; }

        private double _DrynessTag2Value;
        /// <summary>
        /// 干度2（无量纲 [-]）
        /// </summary>
        public double DrynessTag2Value
        {
            get { return _DrynessTag2Value; }
            set { _DrynessTag2Value = value; RaisePropertyChanged(); }
        }

        /// <summary>
        /// 气路阀前压力（BarA）
        /// </summary>
        public ITag GasPreValvePressTag { get; set; }

        /// <summary>
        /// 气路阀前温度（℃）
        /// </summary>
        public ITag GasPreValveTempTag { get; set; }

        /// <summary>
        /// 冷媒流量kg/h
        /// </summary>
        public ITag VRVTag { get; set; }

        /// <summary>
        /// 液体流量（kg/h）
        /// 液冷媒流量kg/h=液体流量kg/h
        /// </summary>
        public ITag LiqRefFlowTag { get; set; }

        /// <summary>
        /// 润滑油流量（kg/h）
        /// </summary>
        public ITag LubeFlowTag { get; set; }


        public ITag HeatingCapacity { get; set; }
        public ITag COPHeat { get; set; }
        public ITag IsentrpEff { get; set; }
        public ITag CoolCapacity { get; set; }
        public ITag COPCool { get; set; }
        public ITag VoltricEff { get; set; }


        /// <summary>
        /// 风量数据-乘以系数的后的最终结果
        /// </summary>
        private double AirVolumeData { get; set; } = 0.0;

        /// <summary>
        /// 风量数据-公式计算的原始数据
        /// </summary>
        private double AirVolumeDataSource { get; set; } = 0;

        /// <summary>
        /// 风量喷嘴启用信息数据
        /// </summary>
        private string RozzleEnableInfo { get; set; } = "";

        /// <summary>
        /// 启用计算
        /// </summary>
        private bool RtCalcEnable { get; set; } = true;

        /// <summary>
        /// 触发日志
        /// </summary>
        private bool DebugLog { get; set; } = false;

        /// <summary>
        /// PLC扫描线程
        /// </summary>
        private void RtScanDeviceStart()
        {
            if (System.Threading.Interlocked.CompareExchange(ref _scanLoopStarted, 1, 0) != 0)
            {
                return;
            }

            CalcTask = Task.Run(async () =>
            {
                while (RtCalcEnable)
                {
                    await Task.Delay(1000);
                    try
                    {
                        if (!TryUpdateSuperheatAndSubcool(out var superheatSubcoolErr))
                        {
                            if (!string.IsNullOrWhiteSpace(superheatSubcoolErr))
                            {
                                Logger?.Error($"过热度/过冷度计算失败: {superheatSubcoolErr}");
                            }
                        }

                        if (TryUpdateThermodynamicSixResults(out var thermoErr))
                        {
                            if (!string.IsNullOrWhiteSpace(thermoErr))
                            {
                                Logger?.Error($"六个物性结果计算警告: {thermoErr}");
                            }
                        }
                        else
                        {
                            if (!string.IsNullOrWhiteSpace(thermoErr))
                            {
                                Logger?.Error($"六个物性结果计算失败: {thermoErr}");
                            }
                        }

                    }
                    catch (Exception ex)
                    {
                        Logger.Error(String.Format("ErrSource : {0} ErrMsg : {1}", ex.StackTrace.ToString(), ex.Message.ToString()));
                    }
                }
            });
        }

        /// <summary>
        /// 更新过热度与过冷度结果。
        /// </summary>
        /// <param name="error">
        /// 错误汇总输出。
        /// 当两个结果都失败时，返回拼接后的失败原因；
        /// 当仅一个结果失败时，只返回该项失败原因；
        /// 当至少有一项成功更新时，方法返回 <see langword="true"/>。
        /// </param>
        /// <returns>
        /// 是否至少成功更新了一个结果。
        /// 该方法保持原有行为：过热度和过冷度彼此独立，只要其中之一成功就返回 <see langword="true"/>。
        /// </returns>
        private bool TryUpdateSuperheatAndSubcool(out string error)
        {
            error = string.Empty;
            bool updated = false;
            StringBuilder errorBuilder = new StringBuilder();

            // 第一段：收集过热度所需标签，并把实时值直接交给独立计算类。
            // PPCService 只负责“取值 + 回写”，具体热力学过程由 PPCSuperheatSubcoolCalculator 承担。
            if (InhPressTag == null || InhTempTag == null || Superheat == null)
            {
                AppendCalculationError(errorBuilder, "缺少过热度计算标签");
            }
            else if (_superheatSubcoolCalculator.TryCalculateSuperheatK(InhPressTag.EngPvValue, InhTempTag.EngPvValue, out var superheatValue, out var superheatErr))
            {
                Superheat.EngPvValue =Math.Abs(superheatValue) ;
                updated = true;
            }
            else
            {
                AppendCalculationError(errorBuilder, superheatErr);
            }

            // 第二段：收集过冷度所需标签，并按同样方式委托给独立计算类。
            // 两个结果互不阻塞，保持与旧实现一致的“部分成功也可回写”的策略。
            if (TxvFrPressTag == null || TxvFrTempTag == null || Subcool == null)
            {
                AppendCalculationError(errorBuilder, "缺少过冷度计算标签");
            }
            else if (_superheatSubcoolCalculator.TryCalculateSubcoolK(TxvFrPressTag.EngPvValue, TxvFrTempTag.EngPvValue, out var subcoolValue, out var subcoolErr))
            {
                Subcool.EngPvValue = Math.Abs(subcoolValue);
                updated = true;
            }
            else
            {
                AppendCalculationError(errorBuilder, subcoolErr);
            }

            error = errorBuilder.ToString();
            return updated;
        }

        private static void AppendCalculationError(StringBuilder errorBuilder, string error)
        {
            if (string.IsNullOrWhiteSpace(error))
            {
                return;
            }

            if (errorBuilder.Length > 0)
            {
                errorBuilder.Append("；");
            }

            errorBuilder.Append(error);
        }

        /// <summary>
        /// 按图片的最终流程计算干度：
        /// 1) 质量流量加权混合焓 h_mix = (h_vap*mg + h_liq*ml) / (mg + ml)
        /// 2) 干度 x = (h_mix - h_l) / (h_v - h_l)，并限幅到 [0,1]
        /// 
        /// 入参单位：
        /// - hVap_kJkg, hLiq_kJkg, hSatL_kJkg, hSatV_kJkg 均为 kJ/kg
        /// - mGas_kg_h, mLiq_kg_h 均为 kg/h
        /// 返回：true 表示成功，输出 x∈[0,1] 与 h_mix；false 返回 error
        /// </summary>
        /// <param name="hVap_kJkg">气相质量焓 h_vap [kJ/kg]</param>
        /// <param name="hLiq_kJkg">液相质量焓 h_liq [kJ/kg]</param>
        /// <param name="mGas_kg_h">气体质量流量 mg [kg/h]</param>
        /// <param name="mLiq_kg_h">液体质量流量 ml [kg/h]</param>
        /// <param name="hSatL_kJkg">饱和液质量焓 h_l [kJ/kg]</param>
        /// <param name="hSatV_kJkg">饱和气质量焓 h_v [kJ/kg]</param>
        /// <param name="dryness">输出干度 x ∈ [0,1]</param>
        /// <param name="hMix_kJkg">输出混合后总比焓 h_mix [kJ/kg]</param>
        /// <param name="error">Err</param>
        /// <returns></returns>
        public bool TryComputeDrynessByEnthalpy(
            double hVap_kJkg,     // 气相质量焓 h_vap [kJ/kg]
            double hLiq_kJkg,     // 液相质量焓 h_liq [kJ/kg]
            double mGas_kg_h,     // 气体质量流量 mg [kg/h]
            double mLiq_kg_h,     // 液体质量流量 ml [kg/h]
            double hSatL_kJkg,    // 饱和液质量焓 h_l [kJ/kg]
            double hSatV_kJkg,    // 饱和气质量焓 h_v [kJ/kg]
            out double dryness,   // 输出干度 x ∈ [0,1]
            out double hMix_kJkg, // 输出混合后总比焓 h_mix [kJ/kg]
            out string error)
        {
            dryness = double.NaN;
            hMix_kJkg = double.NaN;
            error = string.Empty;

            // 1) 合法性校验
            if (double.IsNaN(hVap_kJkg) || double.IsNaN(hLiq_kJkg) || double.IsNaN(hSatL_kJkg) || double.IsNaN(hSatV_kJkg))
            {
                error = "输入焓值存在 NaN";
                return false;
            }
            if (double.IsNaN(mGas_kg_h) || double.IsNaN(mLiq_kg_h))
            {
                error = "输入质量流量存在 NaN";
                return false;
            }
            // 负值处理：小于 0 视为 0（避免传感器噪声或符号错误影响）
            double mg = Math.Max(0.0, mGas_kg_h);
            double ml = Math.Max(0.0, mLiq_kg_h);
            double mSum = mg + ml;
            if (mSum <= 0)
            {
                error = "气液质量流量之和为 0，无法进行加权混合焓计算";
                return false;
            }

            // 2) 质量流量加权混合焓（严格按图片：上、下两路相加后除以总流量）
            hMix_kJkg = (hVap_kJkg * mg + hLiq_kJkg * ml) / mSum;

            // 3) 干度计算：x = (h_mix - h_l) / (h_v - h_l)
            double denom = (hSatV_kJkg - hSatL_kJkg);
            const double eps = 1e-9;
            if (Math.Abs(denom) < eps)
            {
                error = "饱和气/液焓差过小，无法计算干度（可能接近临界点或输入异常）";
                return false;
            }

            double x = (hMix_kJkg - hSatL_kJkg) / denom;

            // 4) 限幅到 [0,1]
            if (double.IsNaN(x) || double.IsInfinity(x))
            {
                error = "干度计算结果异常（NaN/Inf）";
                return false;
            }
            dryness = Math.Min(1.0, Math.Max(0.0, x));
            return true;
        }


        /// <summary>
        /// 按图片的最终流程计算干度2：
        /// 干度2的计算：临时用作为对比使用
        /// 1) 质量流量加权混合焓 h_mix = (h_vap*mg + h_liq*ml) / (mg + ml)
        /// 2) 干度 x = (h_mix - h_l) / (h_v - h_l)，并限幅到 [0,1]
        /// 
        /// 入参单位：
        /// - hVap_kJkg, hLiq_kJkg, hSatL_kJkg, hSatV_kJkg 均为 kJ/kg
        /// - mGas_kg_h, mLiq_kg_h 均为 kg/h
        /// 返回：true 表示成功，输出 x∈[0,1] 与 h_mix；false 返回 error
        /// </summary>
        /// <param name="hVap_kJkg">气相质量焓 h_vap [kJ/kg]</param>
        /// <param name="hLiq_kJkg">液相质量焓 h_liq [kJ/kg]</param>
        /// <param name="mGas_kg_h">气体质量流量 mg [kg/h]</param>
        /// <param name="mLiq_kg_h">液体质量流量 ml [kg/h]</param>
        /// <param name="hSatL_kJkg">饱和液质量焓 h_l [kJ/kg]</param>
        /// <param name="hSatV_kJkg">饱和气质量焓 h_v [kJ/kg]</param>
        /// <param name="dryness">输出干度 x ∈ [0,1]</param>
        /// <param name="hMix_kJkg">输出混合后总比焓 h_mix [kJ/kg]</param>
        /// <param name="error">Err</param>
        /// <returns></returns>
        public bool TryComputeDrynessByEnthalpy2(
            double hVap_kJkg,     // 气相质量焓 h_vap [kJ/kg]
            double hLiq_kJkg,     // 液相质量焓 h_liq [kJ/kg]
            double mGas_kg_h,     // 气体质量流量 mg [kg/h]
            double lubeFlow_kg_h,     // 润滑油流量 mg [kg/h]
            double mLiq_kg_h,     // 液体质量流量 ml [kg/h]
            double hSatL_kJkg,    // 饱和液质量焓 h_l [kJ/kg]
            double hSatV_kJkg,    // 饱和气质量焓 h_v [kJ/kg]
            out double dryness,   // 输出干度 x ∈ [0,1]
            out double hMix_kJkg, // 输出混合后总比焓 h_mix [kJ/kg]
            out string error)
        {
            dryness = double.NaN;
            hMix_kJkg = double.NaN;
            error = string.Empty;

            // 1) 合法性校验
            if (double.IsNaN(hVap_kJkg) || double.IsNaN(hLiq_kJkg) || double.IsNaN(hSatL_kJkg) || double.IsNaN(hSatV_kJkg))
            {
                error = "输入焓值存在 NaN";
                return false;
            }
            if (double.IsNaN(mGas_kg_h) || double.IsNaN(mLiq_kg_h))
            {
                error = "输入质量流量存在 NaN";
                return false;
            }
            // 负值处理：小于 0 视为 0（避免传感器噪声或符号错误影响）
            //double mg1 = Math.Max(0.0, mGas_kg_h);
            double mg = Math.Max(0.0, mGas_kg_h) + Math.Max(0.0, lubeFlow_kg_h); // 这个是改动 气体流量再加上润滑油流量
            double ml = Math.Max(0.0, mLiq_kg_h);
            double mSum = mg + ml;
            if (mSum <= 0)
            {
                error = "气液质量流量之和为 0，无法进行加权混合焓计算";
                return false;
            }

            // 2) 质量流量加权混合焓（严格按图片：上、下两路相加后除以总流量）
            hMix_kJkg = (hVap_kJkg * mg + hLiq_kJkg * ml) / mSum;

            // 3) 干度计算：x = (h_mix - h_l) / (h_v - h_l)
            double denom = (hSatV_kJkg - hSatL_kJkg);
            const double eps = 1e-9;
            if (Math.Abs(denom) < eps)
            {
                error = "饱和气/液焓差过小，无法计算干度（可能接近临界点或输入异常）";
                return false;
            }

            double x = (hMix_kJkg - hSatL_kJkg) / denom;

            // 4) 限幅到 [0,1]
            if (double.IsNaN(x) || double.IsInfinity(x))
            {
                error = "干度计算结果异常（NaN/Inf）";
                return false;
            }
            dryness = Math.Min(1.0, Math.Max(0.0, x));
            return true;
        }




        ///制热量、压缩机性能系数COP（制热）、等熵效率、制冷量、压缩机性能系数COP(制冷)、容积效率  计算
        #region 

        private double _HeatingCapacityQh_kW;
        /// <summary>
        /// 制热量 Qh [kW]
        /// </summary>
        public double HeatingCapacityQh_kW
        {
            get { return _HeatingCapacityQh_kW; }
            set { _HeatingCapacityQh_kW = value; RaisePropertyChanged(); }
        }

        private double _COPHeating;
        /// <summary>
        /// 压缩机性能系数 COP（制热）[-]
        /// </summary>
        public double COPHeating
        {
            get { return _COPHeating; }
            set { _COPHeating = value; RaisePropertyChanged(); }
        }

        private double _IsentropicEfficiencyPct;
        /// <summary>
        /// 等熵效率 ηs [%]
        /// </summary>
        public double IsentropicEfficiencyPct
        {
            get { return _IsentropicEfficiencyPct; }
            set { _IsentropicEfficiencyPct = value; RaisePropertyChanged(); }
        }

        private double _CoolingCapacityQc_kW;
        /// <summary>
        /// 制冷量 Qc [kW]
        /// </summary>
        public double CoolingCapacityQc_kW
        {
            get { return _CoolingCapacityQc_kW; }
            set { _CoolingCapacityQc_kW = value; RaisePropertyChanged(); }
        }

        private double _COPCooling;
        /// <summary>
        /// 压缩机性能系数 COP（制冷）[-]
        /// </summary>
        public double COPCooling
        {
            get { return _COPCooling; }
            set { _COPCooling = value; RaisePropertyChanged(); }
        }

        private double _VolumetricEfficiencyPct;
        /// <summary>
        /// 容积效率 ηv [%]
        /// </summary>
        public double VolumetricEfficiencyPct
        {
            get { return _VolumetricEfficiencyPct; }
            set { _VolumetricEfficiencyPct = value; RaisePropertyChanged(); }
        }

        /// <summary>
        /// 按流程图更新：制热量、COP(制热)、等熵效率、制冷量、COP(制冷)、容积效率。
        /// </summary>
        /// <param name="error">
        /// 错误/警告信息输出。
        /// - 当方法返回 <see langword="false"/> 时，<paramref name="error"/> 为失败原因，调用方应视为本周期计算无效。
        /// - 当方法返回 <see langword="true"/> 但 <paramref name="error"/> 非空时，表示仅部分结果无法计算（例如缺少排量导致容积效率为 NaN）。
        /// </param>
        /// <returns>
        /// 是否成功完成本周期的结果更新。
        /// - <see langword="true"/>：至少已成功更新 Qh/Qc/COP/ηs 等主要结果；容积效率可能因缺失排量而为 NaN。
        /// - <see langword="false"/>：关键输入或 REFPROP 计算失败，本周期结果不更新。
        /// </returns>
        private bool TryUpdateThermodynamicSixResults(out string error)
        {
            error = string.Empty;

            // 先把本周期所需的标签值组装为输入模型。
            // PPCService 在这里负责完成“标签 -> 领域输入对象”的映射，
            // 从而把计算类和 UI/标签层解耦。
            if (!TryCreateThermodynamicSixResultsInput(out var input, out var inputErr))
            {
                error = inputErr;
                return false;
            }

            // 把输入模型交给独立计算类统一完成 6 个结果的热力计算。
            // 此处不再在 PPCService 中展开公式，只保留流程调度职责。
            if (!_thermodynamicSixResultsCalculator.TryCalculate(input, out var result, out error))
            {
                return false;
            }

            // 先把结果同步到服务属性，供界面绑定或其他业务读取。
            HeatingCapacityQh_kW = result.HeatingCapacityQh_kW;
            CoolingCapacityQc_kW = result.CoolingCapacityQc_kW;
            COPHeating = result.COPHeating;
            COPCooling = result.COPCooling;
            IsentropicEfficiencyPct = result.IsentropicEfficiencyPct;

            // 再把结果回写到对应工程量标签。
            HeatingCapacity.EngPvValue = HeatingCapacityQh_kW;
            COPHeat.EngPvValue = COPHeating;
            IsentrpEff.EngPvValue = IsentropicEfficiencyPct;
            CoolCapacity.EngPvValue = CoolingCapacityQc_kW;
            COPCool.EngPvValue = COPCooling;

            // 容积效率在旧逻辑中允许单独失败；
            // 因此只有拿到有效数值时才回写，避免覆盖已有结果为 NaN/Inf。
            if (!double.IsNaN(result.VolumetricEfficiencyPct) && !double.IsInfinity(result.VolumetricEfficiencyPct))
            {
                VolumetricEfficiencyPct = result.VolumetricEfficiencyPct;
                VoltricEff.EngPvValue = VolumetricEfficiencyPct;
            }

            return true;
        }

        /// <summary>
        /// 创建六个热力结果值计算所需的输入模型。
        /// </summary>
        /// <param name="input">
        /// 输出输入模型。
        /// 该对象是 <see cref="PPCThermodynamicSixResultsCalculator"/> 与 <see cref="PPCService"/> 之间的数据边界：
        /// 由服务层负责从标签提取实时值，由计算层只消费该对象而不直接依赖标签。
        /// </param>
        /// <param name="error">失败原因，通常为缺少标签、缺少排量配置或关键输入不可用。</param>
        /// <returns>是否创建成功。</returns>
        private bool TryCreateThermodynamicSixResultsInput(out PPCThermodynamicSixResultsCalculationInput input, out string error)
        {
            input = new PPCThermodynamicSixResultsCalculationInput();
            error = string.Empty;

            // 依次校验本周期计算所需的全部标签。
            // 这里不做公式计算，只保证独立计算类拿到的是一套完整输入。
            if (HVPwTag == null)
            {
                error = "缺少 HV[W] 功率标签";
                return false;
            }
            if (VRVTag == null)
            {
                error = "缺少总流量(冷媒流量)标签";
                return false;
            }
            if (LubeFlowTag == null)
            {
                error = "缺少油流量标签";
                return false;
            }
            if (InhPressTag == null || InhTempTag == null)
            {
                error = "缺少吸气压力/吸气温度标签";
                return false;
            }
            if (ExPressTag == null || ExTempTag == null)
            {
                error = "缺少排气压力/排气温度标签";
                return false;
            }
            if (TxvFrPressTag == null || TxvFrTempTag == null)
            {
                error = "缺少膨胀阀前压力/膨胀阀前温度标签";
                return false;
            }
            if (SpeedTag == null)
            {
                error = "缺少转速标签";
                return false;
            }
            if (!TryGetCompressorDisplacement_cc(out var displacementCc, out var displacementErr))
            {
                error = displacementErr;
                return false;
            }

            // 将实时标签值与配置值组装为独立计算类可直接消费的输入对象。
            input = new PPCThermodynamicSixResultsCalculationInput
            {
                CompressorPowerW = HVPwTag.EngPvValue,
                TotalMassFlowKgPerHour = VRVTag.EngPvValue,
                OilMassFlowKgPerHour = LubeFlowTag.EngPvValue,
                SuctionPressureBarA = InhPressTag.EngPvValue,
                SuctionTemperatureC = InhTempTag.EngPvValue,
                DischargePressureBarA = ExPressTag.EngPvValue,
                DischargeTemperatureC = ExTempTag.EngPvValue,
                LiquidPressureBarA = TxvFrPressTag.EngPvValue,
                LiquidTemperatureC = TxvFrTempTag.EngPvValue,
                CompressorSpeedRpm = SpeedTag.EngPvValue,
                CompressorDisplacementCc = displacementCc
            };

            return true;
        }

        /// <summary>
        /// 获取压缩机排量。
        /// </summary>
        /// <param name="displacement_cc">排量输出，单位 cc（cm³/rev）。</param>
        /// <param name="error">失败原因（未配置、解析失败、数值不合法）。</param>
        /// <returns>是否获取成功。</returns>
        private bool TryGetCompressorDisplacement_cc(out double displacement_cc, out string error)
        {
            displacement_cc = double.NaN;
            error = string.Empty;

            displacement_cc = 35;
            return true;

            const string key = "CompressorDisplacementCc";
            //if (!ConfigHelper.IsExist(key))
            //{
            //    error = $"未配置压缩机排量，请在 App.config/appSettings 增加 {key}（单位 cc）";
            //    return false;
            //}

            string v = ConfigHelper.GetValue(key);
            if (!double.TryParse(v, out displacement_cc))
            {
                error = $"压缩机排量配置无法解析: {v}";
                return false;
            }

            if (displacement_cc <= 0)
            {
                error = $"压缩机排量<=0: {displacement_cc}";
                return false;
            }

            return true;
        }

        #endregion
    }
}