FootwearTest-20260602/Footwear Test methodsfor wholeshoe Slipresistanceperformance/Services/SlipResistanceDeviceService.cs

using Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.Models;
using NModbus;
using NModbus.IO;
using Serilog;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO.Ports;
using System.Threading;
using System.Threading.Tasks;

namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.Services
{
    public sealed class SlipResistanceDeviceService : IDisposable
    {
        private const byte SlaveId = 1;
        private const ushort PlcDisplacementRegister = 402;
        private const ushort PlcStateCoilStart = 81;
        private const ushort StartTestCoil = 80;
        private const ushort StopTestCoil = 83;
        private const ushort ResetCoil = 90;
        private const ushort MoveLeftCoil = 1;
        private const ushort MoveRightCoil = 2;
        private const ushort LowerCoil = 4;
        private const ushort LiftCoil = 5;
        private const ushort ManualSpeedRegister = 302;
        private const ushort TestSpeedRegister = 310;
        private const ushort ManualDisplacementRegister = 320;

        private readonly object sync = new();
        private readonly object plcIoLock = new();
        private readonly object adcIoLock = new();
        private readonly ModbusFactory modbusFactory = new();

        private CancellationTokenSource? cancellationTokenSource;
        private Task? adcTask;
        private Task? plcTask;
        private SerialPort? plcPort;
        private SerialPort? adcPort;
        private IModbusSerialMaster? plcMaster;
        private IModbusSerialMaster? adcMaster;
        private DeviceSettings settings = new("0.00", "0.00", "0.30", "0", "0.00", "0", "0.00", "0", "0.00", "COM3", "COM4", 115200);
        private SlipDeviceSnapshot snapshot = SlipDeviceSnapshot.Offline();
        private DateTime lastAdcErrorLoggedAt = DateTime.MinValue;
        private DateTime lastPlcErrorLoggedAt = DateTime.MinValue;
        private DateTime lastAdcDiagnosticLoggedAt = DateTime.MinValue;
        private DateTime lastAdcCalibrationWarningLoggedAt = DateTime.MinValue;
        private string lastAdcCalibrationWarning = string.Empty;

        private double verticalLoadN;
        private double horizontalFrictionN;
        private double displacementMm;
        private int pressureRawValue;
        private int frictionRawValue1;
        private int frictionRawValue2;
        private bool hasAdcRawValues;
        private bool isTestRunning;
        private bool isResetting;
        private bool isAdcConnected;
        private bool isPlcConnected;
        private string adcLastError = string.Empty;
        private string plcLastError = string.Empty;

        public SlipDeviceSnapshot CurrentSnapshot
        {
            get
            {
                lock (sync)
                {
                    return snapshot;
                }
            }
        }

        public void Start(DeviceSettings deviceSettings)
        {
            settings = deviceSettings;
            LogAdcCalibrationWarningIfNeeded();
            Stop();

            try
            {
                Log.Information(
                    "启动防滑测试设备连接：PLC={PlcPort}, ADC={AdcPort}, BaudRate={BaudRate}, SlaveId={SlaveId}",
                    settings.PlcPortName,
                    settings.AdcPortName,
                    settings.BaudRate,
                    SlaveId);

                plcPort = CreatePort(settings.PlcPortName, settings.BaudRate);
                adcPort = CreatePort(settings.AdcPortName, settings.BaudRate);
                plcPort.Open();
                adcPort.Open();

                plcMaster = modbusFactory.CreateRtuMaster(new SerialPortResource(plcPort));
                adcMaster = modbusFactory.CreateRtuMaster(new SerialPortResource(adcPort));
                plcMaster.Transport.ReadTimeout = 2000;
                adcMaster.Transport.ReadTimeout = 2000;

                cancellationTokenSource = new CancellationTokenSource();
                var token = cancellationTokenSource.Token;
                SetAllDisconnected(string.Empty);
                adcTask = Task.Run(() => PollAdc(token), token);
                plcTask = Task.Run(() => PollPlc(token), token);
                Log.Information("防滑测试设备连接成功，ADC/PLC 轮询已启动");
            }
            catch (Exception ex)
            {
                Log.Error(
                    ex,
                    "防滑测试设备连接失败：PLC={PlcPort}, ADC={AdcPort}, BaudRate={BaudRate}",
                    settings.PlcPortName,
                    settings.AdcPortName,
                    settings.BaudRate);
                SetAllDisconnected(ex.Message);
                Stop();
            }
        }

        public void UpdateSettings(DeviceSettings deviceSettings)
        {
            settings = deviceSettings;
            LogAdcCalibrationWarningIfNeeded();
            Log.Debug(
                "设备设置已更新：PLC={PlcPort}, ADC={AdcPort}, BaudRate={BaudRate}, TestSpeed={TestSpeed}, ManualSpeed={ManualSpeed}, ManualDisplacement={ManualDisplacement}",
                settings.PlcPortName,
                settings.AdcPortName,
                settings.BaudRate,
                settings.TestSpeed,
                settings.ManualSpeed,
                settings.ManualDisplacement);
        }

        public Task PulseStartTestAsync() => PulseCoilAsync(StartTestCoil);

        public Task PulseStopTestAsync() => PulseCoilAsync(StopTestCoil);

        public Task PulseResetAsync() => PulseCoilAsync(ResetCoil);

        public async Task ApplyOldLiftAsync()
        {
            await WriteCoilAsync(LowerCoil, false);
            await WriteCoilAsync(LiftCoil, true);
            Log.Information("提升按钮按老代码执行：M{LowerCoil}=0, M{LiftCoil}=1", LowerCoil, LiftCoil);
        }

        public async Task ApplyOldLowerAsync()
        {
            await WriteCoilAsync(LiftCoil, false);
            await WriteCoilAsync(LowerCoil, true);
            Log.Information("下降按钮按老代码执行：M{LiftCoil}=0, M{LowerCoil}=1", LiftCoil, LowerCoil);
        }

        public Task ToggleOldMoveLeftAsync() => ToggleCoilAsync(MoveLeftCoil);

        public Task ToggleOldMoveRightAsync() => ToggleCoilAsync(MoveRightCoil);

        public async Task StopAllMotionAsync()
        {
            await WriteCoilAsync(LiftCoil, false);
            await WriteCoilAsync(LowerCoil, false);
            await WriteCoilAsync(MoveLeftCoil, false);
            await WriteCoilAsync(MoveRightCoil, false);
            Log.Information("全部运动停止：M{LiftCoil}=0, M{LowerCoil}=0, M{MoveLeftCoil}=0, M{MoveRightCoil}=0", LiftCoil, LowerCoil, MoveLeftCoil, MoveRightCoil);
        }

        public Task WriteManualSpeedAsync(double value) => WriteFloatRegisterAsync(ManualSpeedRegister, value);

        public Task WriteTestSpeedAsync(double value) => WriteFloatRegisterAsync(TestSpeedRegister, value);

        public Task WriteManualDisplacementAsync(double value) => WriteFloatRegisterAsync(ManualDisplacementRegister, value);

        public Task<PlcDeviceParameters> ReadDeviceParametersAsync() =>
            Task.Run(() =>
            {
                ushort[] manualSpeedWords;
                ushort[] manualDisplacementWords;
                ushort[] testSpeedWords;
                lock (plcIoLock)
                {
                    var master = plcMaster ?? throw new InvalidOperationException("PLC 未连接");
                    manualSpeedWords = master.ReadHoldingRegisters(SlaveId, ManualSpeedRegister, 2);
                    manualDisplacementWords = master.ReadHoldingRegisters(SlaveId, ManualDisplacementRegister, 2);
                    testSpeedWords = master.ReadHoldingRegisters(SlaveId, TestSpeedRegister, 2);
                }

                var parameters = new PlcDeviceParameters(
                    UshortToFloat(manualSpeedWords[1], manualSpeedWords[0]),
                    UshortToFloat(manualDisplacementWords[1], manualDisplacementWords[0]),
                    UshortToFloat(testSpeedWords[1], testSpeedWords[0]));

                Log.Information(
                    "读取 PLC 参数完成：D{ManualSpeedRegister}={ManualSpeed:F3}, D{ManualDisplacementRegister}={ManualDisplacement:F3}, D{TestSpeedRegister}={TestSpeed:F3}",
                    ManualSpeedRegister,
                    parameters.ManualSpeed,
                    ManualDisplacementRegister,
                    parameters.ManualDisplacement,
                    TestSpeedRegister,
                    parameters.TestSpeed);
                return parameters;
            });

        public AdcZeroCalibration CaptureCurrentAdcZero()
        {
            lock (sync)
            {
                if (!hasAdcRawValues)
                {
                    throw new InvalidOperationException("ADC 尚未读取到有效原始数据");
                }

                Log.Information(
                    "采集 ADC 零点：NormalPressureZero={NormalPressureZero}, FrictionZero1={FrictionZero1}, FrictionZero2={FrictionZero2}",
                    pressureRawValue,
                    frictionRawValue1,
                    frictionRawValue2);
                return new AdcZeroCalibration(pressureRawValue, frictionRawValue1, frictionRawValue2);
            }
        }

        public void Stop()
        {
            Log.Information("停止防滑测试设备连接与轮询");
            cancellationTokenSource?.Cancel();

            try
            {
                adcTask?.Wait(200);
                plcTask?.Wait(200);
            }
            catch
            {
            }

            cancellationTokenSource?.Dispose();
            cancellationTokenSource = null;
            adcTask = null;
            plcTask = null;

            plcMaster?.Dispose();
            adcMaster?.Dispose();
            plcMaster = null;
            adcMaster = null;

            ClosePort(plcPort);
            ClosePort(adcPort);
            plcPort = null;
            adcPort = null;
            SetAllDisconnected(string.Empty);
        }

        public void Dispose()
        {
            Stop();
        }

        private static SerialPort CreatePort(string portName, int baudRate) =>
            new(portName, baudRate, Parity.None, 8, StopBits.One)
            {
                ReadTimeout = 2000,
                WriteTimeout = 2000
            };

        private static void ClosePort(SerialPort? port)
        {
            if (port is null)
            {
                return;
            }

            try
            {
                if (port.IsOpen)
                {
                    port.Close();
                }
            }
            catch
            {
            }

            port.Dispose();
        }

        private void PollAdc(CancellationToken token)
        {
            while (!token.IsCancellationRequested)
            {
                try
                {
                    ushort[] data;
                    lock (adcIoLock)
                    {
                        var master = adcMaster;
                        if (master is null)
                        {
                            return;
                        }

                        data = master.ReadHoldingRegisters(SlaveId, 0, 8);
                    }

                    var pressureRaw = UshortToInt(data[0], data[1]);
                    var friction1Raw = UshortToInt(data[2], data[3]);
                    var friction2Raw = UshortToInt(data[6], data[7]);

                    var conversion = ConvertAdcReadings(pressureRaw, friction1Raw, friction2Raw);
                    LogAdcDiagnostic(pressureRaw, friction1Raw, friction2Raw, conversion);

                    lock (sync)
                    {
                        pressureRawValue = pressureRaw;
                        frictionRawValue1 = friction1Raw;
                        frictionRawValue2 = friction2Raw;
                        hasAdcRawValues = true;
                        if (conversion.IsValid)
                        {
                            verticalLoadN = conversion.Pressure;
                            horizontalFrictionN = conversion.Friction;
                            adcLastError = string.Empty;
                            isAdcConnected = true;
                        }
                        else
                        {
                            verticalLoadN = 0;
                            horizontalFrictionN = 0;
                            adcLastError = conversion.Error;
                            isAdcConnected = false;
                        }

                        RefreshSnapshotLocked();
                    }

                    Thread.Sleep(conversion.IsValid ? 10 : 100);
                }
                catch (Exception ex)
                {
                    LogPollingError("ADC", ex, ref lastAdcErrorLoggedAt);
                    SetAdcConnected(false, ex.Message);
                    Thread.Sleep(250);
                }
            }
        }

        private void PollPlc(CancellationToken token)
        {
            while (!token.IsCancellationRequested)
            {
                try
                {
                    ushort[] displacementWords;
                    bool[] coils;
                    lock (plcIoLock)
                    {
                        var master = plcMaster;
                        if (master is null)
                        {
                            return;
                        }

                        displacementWords = master.ReadHoldingRegisters(SlaveId, PlcDisplacementRegister, 2);
                        coils = master.ReadCoils(SlaveId, PlcStateCoilStart, 10);
                    }

                    lock (sync)
                    {
                        displacementMm = UshortToFloat(displacementWords[1], displacementWords[0]);
                        isTestRunning = coils.Length > 0 && coils[0];
                        isResetting = coils.Length > 9 && coils[9];
                        plcLastError = string.Empty;
                        isPlcConnected = true;
                        RefreshSnapshotLocked();
                    }

                    Thread.Sleep(10);
                }
                catch (Exception ex)
                {
                    LogPollingError("PLC", ex, ref lastPlcErrorLoggedAt);
                    SetPlcConnected(false, ex.Message);
                    Thread.Sleep(250);
                }
            }
        }

        private Task PulseCoilAsync(ushort coil) =>
            Task.Run(() =>
            {
                lock (plcIoLock)
                {
                    var master = plcMaster ?? throw new InvalidOperationException("PLC 未连接");
                    Log.Information("按老代码逻辑发送 PLC 脉冲线圈：M{Coil}=true -> false", coil);
                    master.WriteSingleCoil(SlaveId, coil, true);
                    Log.Debug("写入 PLC 线圈：M{Coil}=true", coil);
                    master.WriteSingleCoil(SlaveId, coil, false);
                    Log.Debug("写入 PLC 线圈：M{Coil}=false", coil);
                }
            });

        private Task ToggleCoilAsync(ushort coil) =>
            Task.Run(() =>
            {
                lock (plcIoLock)
                {
                    var master = plcMaster ?? throw new InvalidOperationException("PLC 未连接");
                    var current = master.ReadCoils(SlaveId, coil, 1)[0];
                    master.WriteSingleCoil(SlaveId, coil, !current);
                    Log.Information("切换 PLC 线圈：M{Coil}, Before={Before}, After={After}", coil, current, !current);
                }
            });

        private Task WriteCoilAsync(ushort coil, bool value) =>
            Task.Run(() =>
            {
                lock (plcIoLock)
                {
                    var master = plcMaster ?? throw new InvalidOperationException("PLC 未连接");
                    master.WriteSingleCoil(SlaveId, coil, value);
                    Log.Debug("写入 PLC 线圈：M{Coil}={Value}", coil, value);
                }
            });

        private Task WriteFloatRegisterAsync(ushort register, double value) =>
            Task.Run(() =>
            {
                lock (plcIoLock)
                {
                    var master = plcMaster ?? throw new InvalidOperationException("PLC 未连接");
                    master.WriteMultipleRegisters(SlaveId, register, SplitFloatToUShortArray((float)value));
                    Log.Information("写入 PLC 浮点寄存器：D{Register}={Value:F3}", register, value);
                }
            });

        private void LogPollingError(string source, Exception exception, ref DateTime lastLoggedAt)
        {
            var now = DateTime.UtcNow;
            if (now - lastLoggedAt < TimeSpan.FromSeconds(5))
            {
                return;
            }

            lastLoggedAt = now;
            Log.Error(
                exception,
                "{Source} 轮询失败：PLC={PlcPort}, ADC={AdcPort}, BaudRate={BaudRate}",
                source,
                settings.PlcPortName,
                settings.AdcPortName,
                settings.BaudRate);
        }

        private void SetAdcConnected(bool connected, string error)
        {
            lock (sync)
            {
                isAdcConnected = connected;
                adcLastError = error;
                RefreshSnapshotLocked();
            }
        }

        private void SetPlcConnected(bool connected, string error)
        {
            lock (sync)
            {
                isPlcConnected = connected;
                plcLastError = error;
                if (!connected)
                {
                    isTestRunning = false;
                    isResetting = false;
                }

                RefreshSnapshotLocked();
            }
        }

        private void SetAllDisconnected(string error)
        {
            lock (sync)
            {
                isAdcConnected = false;
                isPlcConnected = false;
                adcLastError = error;
                plcLastError = error;
                isTestRunning = false;
                isResetting = false;
                RefreshSnapshotLocked();
            }
        }

        private void RefreshSnapshotLocked()
        {
            var connected = isAdcConnected && isPlcConnected;
            var error = string.Empty;
            if (!isAdcConnected && !string.IsNullOrWhiteSpace(adcLastError))
            {
                error = "ADC: " + adcLastError;
            }

            if (!isPlcConnected && !string.IsNullOrWhiteSpace(plcLastError))
            {
                error = string.IsNullOrWhiteSpace(error)
                    ? "PLC: " + plcLastError
                    : error + "; PLC: " + plcLastError;
            }

            snapshot = new SlipDeviceSnapshot(
                DateTime.Now,
                verticalLoadN,
                horizontalFrictionN,
                displacementMm,
                isTestRunning,
                isResetting,
                connected,
                error);
        }

        private AdcConversionResult ConvertAdcReadings(int pressureRaw, int friction1Raw, int friction2Raw)
        {
            if (!ValidateAdcSettings(out var pressureZero, out var pressureCoefficient, out var frictionZero1, out var frictionCoefficient1, out var frictionZero2, out var frictionCoefficient2, out var error))
            {
                return AdcConversionResult.Invalid(error);
            }

            var pressure = ConvertAdc(pressureRaw, pressureZero, pressureCoefficient);

            // Keep each settings row paired with the same ADC channel used by the legacy zero-capture button.
            var friction1 = ConvertAdc(friction1Raw, frictionZero1, frictionCoefficient1);
            var friction2 = ConvertAdc(friction2Raw, frictionZero2, frictionCoefficient2);
            var friction = (friction1 + friction2) * -1.0;
            return AdcConversionResult.Valid(pressure, friction1, friction2, friction);
        }

        private bool ValidateAdcSettings(
            out double pressureZero,
            out double pressureCoefficient,
            out double frictionZero1,
            out double frictionCoefficient1,
            out double frictionZero2,
            out double frictionCoefficient2,
            out string error)
        {
            var invalid = new List<string>();
            TryParseSetting(settings.NormalPressureZero, "正压力零点", false, invalid, out pressureZero);
            TryParseSetting(settings.NormalPressureCoefficient, "正压力校准系数", true, invalid, out pressureCoefficient);
            TryParseSetting(settings.FrictionZero1, "摩擦1零点", false, invalid, out frictionZero1);
            TryParseSetting(settings.FrictionCoefficient1, "摩擦1校准系数", true, invalid, out frictionCoefficient1);
            TryParseSetting(settings.FrictionZero2, "摩擦2零点", false, invalid, out frictionZero2);
            TryParseSetting(settings.FrictionCoefficient2, "摩擦2校准系数", true, invalid, out frictionCoefficient2);

            if (invalid.Count == 0)
            {
                error = string.Empty;
                return true;
            }

            error = "ADC 校准参数无效：" + string.Join("、", invalid) + "；请填写旧机实际标定值后再测试";
            return false;
        }

        private void LogAdcCalibrationWarningIfNeeded()
        {
            if (!ValidateAdcSettings(out _, out _, out _, out _, out _, out _, out var error))
            {
                var now = DateTime.UtcNow;
                if (error == lastAdcCalibrationWarning && now - lastAdcCalibrationWarningLoggedAt < TimeSpan.FromSeconds(5))
                {
                    return;
                }

                lastAdcCalibrationWarning = error;
                lastAdcCalibrationWarningLoggedAt = now;
                Log.Warning(
                    "{Error}. CurrentSettings: NormalPressureZero={NormalPressureZero}, NormalPressureCoefficient={NormalPressureCoefficient}, FrictionZero1={FrictionZero1}, FrictionCoefficient1={FrictionCoefficient1}, FrictionZero2={FrictionZero2}, FrictionCoefficient2={FrictionCoefficient2}",
                    error,
                    settings.NormalPressureZero,
                    settings.NormalPressureCoefficient,
                    settings.FrictionZero1,
                    settings.FrictionCoefficient1,
                    settings.FrictionZero2,
                    settings.FrictionCoefficient2);
                return;
            }

            lastAdcCalibrationWarning = string.Empty;
        }

        private void LogAdcDiagnostic(int pressureRaw, int friction1Raw, int friction2Raw, AdcConversionResult conversion)
        {
            var now = DateTime.UtcNow;
            if (now - lastAdcDiagnosticLoggedAt < TimeSpan.FromSeconds(conversion.IsValid ? 1 : 5))
            {
                return;
            }

            lastAdcDiagnosticLoggedAt = now;
            if (conversion.IsValid)
            {
                Log.Debug(
                    "ADC 采样：RawPressure={RawPressure}, RawFriction1={RawFriction1}, RawFriction2={RawFriction2}, Pressure={Pressure:F3} N, Friction1={Friction1:F3} N, Friction2={Friction2:F3} N, Friction={Friction:F3} N, Coefficients=[P:{PressureCoefficient}, F1:{FrictionCoefficient1}, F2:{FrictionCoefficient2}], Zeros=[P:{PressureZero}, F1:{FrictionZero1}, F2:{FrictionZero2}]",
                    pressureRaw,
                    friction1Raw,
                    friction2Raw,
                    conversion.Pressure,
                    conversion.Friction1,
                    conversion.Friction2,
                    conversion.Friction,
                    settings.NormalPressureCoefficient,
                    settings.FrictionCoefficient1,
                    settings.FrictionCoefficient2,
                    settings.NormalPressureZero,
                    settings.FrictionZero1,
                    settings.FrictionZero2);
            }
            else
            {
                Log.Warning(
                    "ADC 采样无效：{Error}. RawPressure={RawPressure}, RawFriction1={RawFriction1}, RawFriction2={RawFriction2}, Coefficients=[P:{PressureCoefficient}, F1:{FrictionCoefficient1}, F2:{FrictionCoefficient2}], Zeros=[P:{PressureZero}, F1:{FrictionZero1}, F2:{FrictionZero2}]",
                    conversion.Error,
                    pressureRaw,
                    friction1Raw,
                    friction2Raw,
                    settings.NormalPressureCoefficient,
                    settings.FrictionCoefficient1,
                    settings.FrictionCoefficient2,
                    settings.NormalPressureZero,
                    settings.FrictionZero1,
                    settings.FrictionZero2);
            }
        }

        private static double ConvertAdc(int rawValue, double zero, double coefficient) =>
            (rawValue - zero) / coefficient;

        private static void TryParseSetting(string value, string label, bool requireNonZero, List<string> invalid, out double numericValue)
        {
            if (!TryParseDouble(value, out numericValue))
            {
                invalid.Add($"{label}=\"{value}\"");
                return;
            }

            if (requireNonZero && Math.Abs(numericValue) < 0.0001)
            {
                invalid.Add($"{label}=0");
            }
        }

        private static bool TryParseDouble(string value, out double numericValue) =>
            double.TryParse(value, NumberStyles.Float, CultureInfo.InvariantCulture, out numericValue)
            || double.TryParse(value, NumberStyles.Float, CultureInfo.CurrentCulture, out numericValue);

        private static int UshortToInt(ushort first, ushort second)
        {
            var bytes = new byte[4];
            BitConverter.GetBytes(first).CopyTo(bytes, 0);
            BitConverter.GetBytes(second).CopyTo(bytes, 2);
            return BitConverter.ToInt32(bytes, 0);
        }

        private static float UshortToFloat(ushort first, ushort second)
        {
            var intSign = first / 32768;
            var intSignRest = first % 32768;
            var intExponent = intSignRest / 128;
            var intExponentRest = intSignRest % 128;
            var digit = (float)(intExponentRest * 65536 + second) / 8388608;
            return (float)Math.Pow(-1, intSign) * (float)Math.Pow(2, intExponent - 127) * (digit + 1);
        }

        private static ushort[] SplitFloatToUShortArray(float value)
        {
            var bytes = BitConverter.GetBytes(value);
            return
            [
                BitConverter.ToUInt16(bytes, 0),
                BitConverter.ToUInt16(bytes, 2)
            ];
        }

        private sealed class SerialPortResource(SerialPort serialPort) : IStreamResource
        {
            public int InfiniteTimeout => SerialPort.InfiniteTimeout;

            public int ReadTimeout
            {
                get => serialPort.ReadTimeout;
                set => serialPort.ReadTimeout = value;
            }

            public int WriteTimeout
            {
                get => serialPort.WriteTimeout;
                set => serialPort.WriteTimeout = value;
            }

            public void DiscardInBuffer() => serialPort.DiscardInBuffer();

            public int Read(byte[] buffer, int offset, int count) => serialPort.Read(buffer, offset, count);

            public void Write(byte[] buffer, int offset, int count) => serialPort.Write(buffer, offset, count);

            public void Dispose()
            {
            }
        }

        private readonly record struct AdcConversionResult(
            bool IsValid,
            double Pressure,
            double Friction1,
            double Friction2,
            double Friction,
            string Error)
        {
            public static AdcConversionResult Valid(double pressure, double friction1, double friction2, double friction) =>
                new(true, pressure, friction1, friction2, friction, string.Empty);

            public static AdcConversionResult Invalid(string error) =>
                new(false, 0, 0, 0, 0, error);
        }
    }
}