using Infrastructure.Helper;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using ZR.Service.mes.andon;
using ZR.Service.mes.andon.Iservice;
using static System.Formats.Asn1.AsnWriter;

namespace ZR.Service.Utils.MyAlarmLigth
{
    /// <summary>
    /// 调漆房IO端口监听+灯控类（X1-X8监听 → 触发对应灯控方法）
    /// </summary>
    public class TiaoQiFangLight : IDisposable
    {
        // 核心配置（仅保留必要参数，对齐测试代码风格）
        private const byte MODBUS_SLAVE_ID = 0x01;
        private const ushort DI_START_ADDR = 0x0000;
        private const int POLLING_INTERVAL_MS = 200;
        private const int DI_COUNT = 8;

        // 依赖注入（仅保留核心依赖）
        private readonly AlarmLightModbus _modbusClient;
        private readonly ILogger<TiaoQiFangLight> _logger;

        // 状态缓存+监听控制（精简命名）
        private readonly bool[] _lastDiState = new bool[DI_COUNT];
        private CancellationTokenSource _cts;
        private Task _listenTask;

        //private AndonAlarmLevelService andonAlarmLevelService = new AndonAlarmLevelService();

        /// <summary>
        /// 构造函数（精简参数，日志可选）
        /// </summary>
        public TiaoQiFangLight(AlarmLightModbus modbusClient, ILogger<TiaoQiFangLight> logger = null)
        {
            _modbusClient = modbusClient;
            _logger = logger;
            Array.Fill(_lastDiState, false); // 初始化未按下
        }

        /// <summary>
        /// 启动监听（精简逻辑，无冗余判断）
        /// </summary>
        public void StartListen()
        {
            if (_listenTask?.IsCompleted == false)
            {
                _logger?.LogWarning("调漆房IO监听已启动，无需重复执行");
                return;
            }

            _cts = new CancellationTokenSource();
            _listenTask = Task.Run(() => ListenDiLoop(_cts.Token), _cts.Token);
        }

        /// <summary>
        /// 停止监听（精简释放逻辑）
        /// </summary>
        public void StopListen()
        {
            if (_cts == null) return;

            _cts.Cancel();
            _listenTask?.Wait(1000);
            _logger?.LogInformation("❌ 停止X1-X8监听");
        }

        /// <summary>
        /// 核心：轮询监听DI状态（精简循环逻辑，对齐测试代码异常处理）
        /// </summary>
        private async Task ListenDiLoop(CancellationToken cancellationToken)
        {
            while (!cancellationToken.IsCancellationRequested)
            {
                try
                {
                    // ====== 关键修改：用ReadDiscreteInputs读取DI端口 ======
                    List<bool> diStates = _modbusClient.ReadDiscreteInputs(
                        MODBUS_SLAVE_ID,
                        DI_START_ADDR,
                        (ushort)DI_COUNT // 转为ushort匹配方法参数
                    );

                    // 结果校验
                    if (diStates == null || diStates.Count != DI_COUNT)
                    {
                        await Task.Delay(POLLING_INTERVAL_MS, cancellationToken);
                        continue;
                    }

                    for (int i = 0; i < DI_COUNT; i++)
                    {
                        bool isPressed = diStates[i]; // true=按下，false=未按下
                        string portName = $"X{i + 1}";

                        // 仅“从未按下→按下”时触发
                        if (isPressed && !_lastDiState[i])
                        {
                            TriggerLightMethod(i + 1);
                        }
                        _lastDiState[i] = isPressed; // 更新缓存
                    }
                }
                catch (OperationCanceledException)
                {
                    _logger?.LogInformation("监听循环被取消，正常退出");
                    break;
                }
                catch (Exception cmdEx)
                {
                }

                await Task.Delay(POLLING_INTERVAL_MS, cancellationToken);
            }
        }
        /// <summary>
        /// 触发灯控方法（精简逻辑，仅保留核心映射）
        /// </summary>
        private void TriggerLightMethod(int portNumber)
        {
            byte lightUnitId = 0x01; // 警灯站号（可按需替换为ReadAlarmlightNumber）
            try
            {
                //X1、X2、X3红按钮，X4绿按钮，X5红按钮
                //Y1蜂鸣器、Y2红灯、Y3黄灯、Y4绿灯
                //Y1->0; Y2->1; y3->2; y4->3
                switch (portNumber)
                {
                    // X1→ 红按钮
                    case 1:
                        _modbusClient.WriteSingleCoil(lightUnitId, 0, true); //0-Y1地址蜂鸣器
                        _modbusClient.WriteSingleCoil(lightUnitId, 1, true); //1-Y2地址红灯
                        _modbusClient.WriteSingleCoil(lightUnitId, 2, false); //2-Y3地址黄灯
                        _modbusClient.WriteSingleCoil(lightUnitId, 3, false); //3-Y4地址绿灯
                        break;
                    // X2→ 红按钮
                    case 2:
                        _modbusClient.WriteSingleCoil(lightUnitId, 0, true); //0-Y1地址蜂鸣器
                        _modbusClient.WriteSingleCoil(lightUnitId, 1, true); //1-Y2地址红灯
                        _modbusClient.WriteSingleCoil(lightUnitId, 2, false); //2-Y3地址黄灯
                        _modbusClient.WriteSingleCoil(lightUnitId, 3, false); //3-Y4地址绿灯
                        break;
                    // X3→ 红按钮
                    case 3:
                        _modbusClient.WriteSingleCoil(lightUnitId, 0, true); //0-Y1地址蜂鸣器
                        _modbusClient.WriteSingleCoil(lightUnitId, 1, true); //1-Y2地址红灯
                        _modbusClient.WriteSingleCoil(lightUnitId, 2, false); //2-Y3地址黄灯
                        _modbusClient.WriteSingleCoil(lightUnitId, 3, false); //3-Y4地址绿灯
                        break;
                    // X4→ 绿按钮
                    case 4:
                        _modbusClient.WriteSingleCoil(lightUnitId, 0, false); //0-Y1地址蜂鸣器
                        _modbusClient.WriteSingleCoil(lightUnitId, 1, false); //1-Y2地址红灯
                        _modbusClient.WriteSingleCoil(lightUnitId, 2, false); //2-Y3地址黄灯
                        _modbusClient.WriteSingleCoil(lightUnitId, 3, true); //3-Y4地址绿灯
                        break;
                    // X5 → 红按钮
                    case 5:
                        _modbusClient.WriteSingleCoil(lightUnitId, 0, true); //0-Y1地址蜂鸣器
                        _modbusClient.WriteSingleCoil(lightUnitId, 1, true); //1-Y2地址红灯
                        _modbusClient.WriteSingleCoil(lightUnitId, 2, false); //2-Y3地址黄灯
                        _modbusClient.WriteSingleCoil(lightUnitId, 3, false); //3-Y4地址绿灯
                        break;
                }
            }
            catch (Exception ex)
            {
                _logger?.LogError(ex, $"❌ X{portNumber}触发灯控方法失败");
            }
        }

        /// <summary>
        /// 释放资源（精简Dispose）
        /// </summary>
        public void Dispose()
        {
            StopListen();
            _cts?.Dispose();
        }
    }
}