using DeviceCommand.Base;
using S7.Net;
using System;
using System.Threading;
using System.Threading.Tasks;

namespace DeviceCommand.Devices
{
    /// <summary>
    /// THC-1100-602A 恒温恒湿试验箱驱动 (S7通讯协议)
    /// 基于西门子PLC S7-1200/S7-1500系列
    /// </summary>
    public class THC1100 : S7Device
    {
        #region THC设备默认连接参数
        private const string DefaultIpAddress = "192.168.0.1";
        private const CpuType DefaultCpuType = CpuType.S71200;
        private const short DefaultRack = 0;
        private const short DefaultSlot = 1;
        private const int DefaultSendTimeout = 3000;
        private const int DefaultReceiveTimeout = 3000;
        #endregion

        #region 寄存器地址定义
        // ========== 主控界面相关 (DB53) ==========
        private const string RealTimeTemperatureSetPointAddress = "DB53.DBD280";
        private const string RealTimeHumidityMeasuredValueAddress = "DB53.DBD1092";
        private const string RealTimeTemperatureMeasuredValueAddress = "DB53.DBD1052";
        private const string OperationModeAddress = "DB53.DBW2";
        private const string TestTypeAddress = "DB53.DBW4";
        private const string CurrentStepAddress = "DB53.DBW6";
        private const string TotalStepsAddress = "DB53.DBW8";
        private const string LoopCountAddress = "DB53.DBW10";
        private const string RunTimeAddress = "DB53.DBD12";
        private const string StepTimeAddress = "DB53.DBD16";
        private const string SystemStatusAddress = "DB53.DBW20";

        // ========== 超温保护相关 (DB53) ==========
        private const string OverTempHighLimitAddress = "DB53.DBD284";
        private const string OverTempLowLimitAddress = "DB53.DBD288";
        private const string OverTempEnableAddress = "DB53.DBX292.0";

        // ========== 报警相关 (DB53) ==========
        private const string AlarmStatusAddress = "DB53.DBW293";
        private const string AlarmCodeAddress = "DB53.DBW295";
        private const string AlarmCountAddress = "DB53.DBW297";

        // ========== 控制指令 (DB53) ==========
        private const string ControlCommandAddress = "DB53.DBW300";

        // ========== 程序步骤参数 (DB54) ==========
        private const string StepTemperatureBaseAddress = "DB54.DBD";
        private const string StepTimeBaseAddress = "DB54.DBD";
        #endregion

        #region 运行模式枚举
        public enum OperationMode
        {
            Stop = 0,
            Running = 1,
            Paused = 2
        }
        #endregion

        public THC1100() : base()
        {
            // 使用THC设备的默认参数配置
            ConfigureDevice(
                ipAddress: DefaultIpAddress,
                cpuType: DefaultCpuType,
                rack: DefaultRack,
                slot: DefaultSlot,
                sendTimeout: DefaultSendTimeout,
                receiveTimeout: DefaultReceiveTimeout
            );
        }

        /// <summary>
        /// 重写连接方法，确保使用正确的默认参数连接
        /// </summary>
        public override async Task<bool> ConnectAsync(CancellationToken ct = default)
        {
            if (string.IsNullOrEmpty(IPAddress))
            {
                ConfigureDevice(
                    ipAddress: DefaultIpAddress,
                    cpuType: DefaultCpuType,
                    rack: DefaultRack,
                    slot: DefaultSlot,
                    sendTimeout: DefaultSendTimeout,
                    receiveTimeout: DefaultReceiveTimeout
                );
            }

            System.Diagnostics.Debug.WriteLine($"[THC1100] 连接参数: IP={IPAddress}, CPU={CpuType}, Rack={Rack}, Slot={Slot}");
            
            bool result = await base.ConnectAsync(ct);
            
            if (!result)
            {
                System.Diagnostics.Debug.WriteLine($"[THC1100] 连接失败: IP={IPAddress}, CPU={CpuType}");
            }
            
            return result;
        }

        #region 基础测量方法
        public async Task<float> GetRealTimeTemperatureSetPointAsync(CancellationToken ct = default)
        {
            try
            {
                byte[] data = await ReadBytesAsync(DataType.DataBlock, 53, 280, 4, ct);
                float value = ByteArrayToFloat(data);
                System.Diagnostics.Debug.WriteLine($"[THC1100] 读取温度设定值(DB53.DBD280): {value}");
                return value;
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine($"[THC1100] 读取温度设定值失败: {ex.Message}");
                throw;
            }
        }

        public async Task<float> GetRealTimeHumidityMeasuredValueAsync(CancellationToken ct = default)
        {
            try
            {
                byte[] data = await ReadBytesAsync(DataType.DataBlock, 53, 1092, 4, ct);
                float value = ByteArrayToFloat(data);
                System.Diagnostics.Debug.WriteLine($"[THC1100] 读取湿度测量值(DB53.DBD1092): {value}");
                return value;
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine($"[THC1100] 读取湿度测量值失败: {ex.Message}");
                throw;
            }
        }

        public async Task<float> GetRealTimeTemperatureMeasuredValueAsync(CancellationToken ct = default)
        {
            try
            {
                byte[] data = await ReadBytesAsync(DataType.DataBlock, 53, 1052, 4, ct);
                float value = ByteArrayToFloat(data);
                System.Diagnostics.Debug.WriteLine($"[THC1100] 读取温度测量值(DB53.DBD1052): {value}");
                return value;
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine($"[THC1100] 读取温度测量值失败: {ex.Message}");
                throw;
            }
        }

        private float ByteArrayToFloat(byte[] data)
        {
            if (data == null || data.Length < 4)
                throw new ArgumentException("数据长度不足");
            
            if (BitConverter.IsLittleEndian)
            {
                byte[] reversed = (byte[])data.Clone();
                Array.Reverse(reversed);
                return BitConverter.ToSingle(reversed, 0);
            }
            return BitConverter.ToSingle(data, 0);
        }
        #endregion

        #region 运行控制方法
        public async Task<OperationMode> GetOperationModeAsync(CancellationToken ct = default)
        {
            var value = await ReadAsync<ushort>(OperationModeAddress, ct);
            return (OperationMode)value;
        }

        public async Task<int> GetTestTypeAsync(CancellationToken ct = default)
        {
            return await ReadAsync<ushort>(TestTypeAddress, ct);
        }

        public async Task SetTestTypeAsync(int testType, CancellationToken ct = default)
        {
            if (testType < 0 || testType > 65535)
                throw new ArgumentOutOfRangeException(nameof(testType), "试验类型必须在0-65535范围内");
            
            await WriteAsync(TestTypeAddress, (ushort)testType, ct);
        }

        public async Task<int> GetCurrentStepAsync(CancellationToken ct = default)
        {
            return await ReadAsync<ushort>(CurrentStepAddress, ct);
        }

        public async Task<int> GetTotalStepsAsync(CancellationToken ct = default)
        {
            return await ReadAsync<ushort>(TotalStepsAddress, ct);
        }

        public async Task SetTotalStepsAsync(int steps, CancellationToken ct = default)
        {
            if (steps < 1 || steps > 999)
                throw new ArgumentOutOfRangeException(nameof(steps), "步数必须在1-999之间");
            
            await WriteAsync(TotalStepsAddress, (ushort)steps, ct);
        }

        public async Task<int> GetLoopCountAsync(CancellationToken ct = default)
        {
            return await ReadAsync<ushort>(LoopCountAddress, ct);
        }

        public async Task SetLoopCountAsync(int count, CancellationToken ct = default)
        {
            if (count < 0 || count > 999)
                throw new ArgumentOutOfRangeException(nameof(count), "循环次数必须在0-999之间");
            
            await WriteAsync(LoopCountAddress, (ushort)count, ct);
        }

        public async Task<float> GetRunTimeAsync(CancellationToken ct = default)
        {
            return await ReadAsync<float>(RunTimeAddress, ct);
        }

        public async Task<float> GetStepTimeAsync(CancellationToken ct = default)
        {
            return await ReadAsync<float>(StepTimeAddress, ct);
        }

        public async Task<int> GetSystemStatusAsync(CancellationToken ct = default)
        {
            return await ReadAsync<ushort>(SystemStatusAddress, ct);
        }
        #endregion

        #region 超温保护方法
        public async Task<float> GetOverTempHighLimitAsync(CancellationToken ct = default)
        {
            return await ReadAsync<float>(OverTempHighLimitAddress, ct);
        }

        public async Task SetOverTempHighLimitAsync(float temperature, CancellationToken ct = default)
        {
            await WriteAsync(OverTempHighLimitAddress, temperature, ct);
        }

        public async Task<float> GetOverTempLowLimitAsync(CancellationToken ct = default)
        {
            return await ReadAsync<float>(OverTempLowLimitAddress, ct);
        }

        public async Task SetOverTempLowLimitAsync(float temperature, CancellationToken ct = default)
        {
            await WriteAsync(OverTempLowLimitAddress, temperature, ct);
        }

        public async Task<bool> GetOverTempEnableAsync(CancellationToken ct = default)
        {
            return await ReadAsync<bool>(OverTempEnableAddress, ct);
        }

        public async Task SetOverTempEnableAsync(bool enable, CancellationToken ct = default)
        {
            await WriteAsync(OverTempEnableAddress, enable, ct);
        }
        #endregion

        #region 报警相关方法
        public async Task<int> GetAlarmStatusAsync(CancellationToken ct = default)
        {
            return await ReadAsync<ushort>(AlarmStatusAddress, ct);
        }

        public async Task<int> GetAlarmCodeAsync(CancellationToken ct = default)
        {
            return await ReadAsync<ushort>(AlarmCodeAddress, ct);
        }

        public async Task<int> GetAlarmCountAsync(CancellationToken ct = default)
        {
            return await ReadAsync<ushort>(AlarmCountAddress, ct);
        }

        public async Task ClearAlarmAsync(CancellationToken ct = default)
        {
            await WriteAsync(ControlCommandAddress, (ushort)0x08, ct);
            await Task.Delay(100, ct);
            await WriteAsync(ControlCommandAddress, (ushort)0x00, ct);
        }
        #endregion

        #region 控制指令方法
        public async Task StartDeviceAsync(CancellationToken ct = default)
        {
            await WriteAsync(ControlCommandAddress, (ushort)0x01, ct);
            await Task.Delay(100, ct);
            await WriteAsync(ControlCommandAddress, (ushort)0x00, ct);
        }

        public async Task StopDeviceAsync(CancellationToken ct = default)
        {
            await WriteAsync(ControlCommandAddress, (ushort)0x02, ct);
            await Task.Delay(100, ct);
            await WriteAsync(ControlCommandAddress, (ushort)0x00, ct);
        }

        public async Task ResetDeviceAsync(CancellationToken ct = default)
        {
            await WriteAsync(ControlCommandAddress, (ushort)0x04, ct);
            await Task.Delay(100, ct);
            await WriteAsync(ControlCommandAddress, (ushort)0x00, ct);
        }
        #endregion

        #region 程序步骤方法
        public async Task SetStepTemperatureAsync(int step, float temperature, CancellationToken ct = default)
        {
            if (step < 1)
                throw new ArgumentOutOfRangeException(nameof(step), "步骤编号必须大于0");
            
            string address = $"{StepTemperatureBaseAddress}{(step - 1) * 12}";
            await WriteAsync(address, temperature, ct);
        }

        public async Task<float> GetStepTemperatureAsync(int step, CancellationToken ct = default)
        {
            if (step < 1)
                throw new ArgumentOutOfRangeException(nameof(step), "步骤编号必须大于0");
            
            string address = $"{StepTemperatureBaseAddress}{(step - 1) * 12}";
            return await ReadAsync<float>(address, ct);
        }

        public async Task SetStepTimeAsync(int step, float duration, CancellationToken ct = default)
        {
            if (step < 1)
                throw new ArgumentOutOfRangeException(nameof(step), "步骤编号必须大于0");
            if (duration < 0)
                throw new ArgumentOutOfRangeException(nameof(duration), "时间不能为负数");
            
            string address = $"{StepTimeBaseAddress}{(step - 1) * 12 + 8}";
            await WriteAsync(address, duration, ct);
        }

        public async Task<float> GetStepTimeAsync(int step, CancellationToken ct = default)
        {
            if (step < 1)
                throw new ArgumentOutOfRangeException(nameof(step), "步骤编号必须大于0");
            
            string address = $"{StepTimeBaseAddress}{(step - 1) * 12 + 8}";
            return await ReadAsync<float>(address, ct);
        }
        #endregion

        #region 数据打包方法
        public async Task<(float TemperatureSetPoint, float TemperatureMeasured, float HumidityMeasured)> GetThcDataPackAsync(CancellationToken ct = default)
        {
            var tempSet = await GetRealTimeTemperatureSetPointAsync(ct);
            var tempMeas = await GetRealTimeTemperatureMeasuredValueAsync(ct);
            var humidMeas = await GetRealTimeHumidityMeasuredValueAsync(ct);
            return (tempSet, tempMeas, humidMeas);
        }

        public async Task<(OperationMode Mode, int CurrentStep, int TotalSteps, int LoopCount, float RunTime)> GetRunStatusPackAsync(CancellationToken ct = default)
        {
            var mode = await GetOperationModeAsync(ct);
            var currentStep = await GetCurrentStepAsync(ct);
            var totalSteps = await GetTotalStepsAsync(ct);
            var loopCount = await GetLoopCountAsync(ct);
            var runTime = await GetRunTimeAsync(ct);
            return (mode, currentStep, totalSteps, loopCount, runTime);
        }
        #endregion
    }
}