using System;
using System.Security.Cryptography.X509Certificates;
using System.Threading;
using System.Threading.Tasks;
using DOAN.Infrastructure.PLC;
using DOAN.Model.PBL;
using DOAN.Model.System;
using Microsoft.Extensions.Hosting;
using SqlSugar;
using SqlSugar.IOC;
namespace DOAN.ServiceCore
{

    /// <summary>
    /// 永驻线程
    /// 功能：检测传感器信号，判断箱子数
    /// </summary>
    public class DoanBackgroundService : IHostedService, IDisposable
    {
        private readonly CancellationTokenSource _cancellationTokenSource = new CancellationTokenSource();
        private Task _executingTask;
        private PLCTool pLCTool;

        public Task StartAsync(CancellationToken cancellationToken)
        {
            pLCTool = new PLCTool();

            pLCTool.ConnectPLC();
            // 当服务开始时，启动后台任务
            _executingTask = ExecuteAsync(_cancellationTokenSource.Token);



            return _executingTask.IsCompleted ? _executingTask : Task.CompletedTask;
        }

        public async Task StopAsync(CancellationToken cancellationToken)
        {
            // 请求取消后台任务
            _cancellationTokenSource.Cancel();

            // 等待后台任务完成
            await Task.WhenAny(_executingTask, Task.Delay(Timeout.Infinite, cancellationToken));
        }

       private  static bool GetInvertedBit(byte b, int position)
        {
            if (position < 0 || position > 7)
            {
                throw new ArgumentOutOfRangeException(nameof(position), "Position must be between 0 and 7.");
            }

            // 创建一个掩码，其中只有要检查的那一位是1
            byte mask = (byte)(1 << position);

            // 使用按位与运算符(&)来检查该位是否为1
            bool isSet = (b & mask) != 0;

            // 返回取反后的值
            return !isSet;
        }

        /// <summary>
        /// 功能：检测传感器信号，判断箱子数
        /// </summary>
        /// <param name="stoppingToken"></param>
        /// <returns></returns>
        private async Task ExecuteAsync(CancellationToken stoppingToken)
        {

            try {
                //int index = 1;
                //int indexMax = await DbScoped.SugarScope.CopyNew()
                //     .Queryable<Storagelocation>().CountAsync();
                while (!stoppingToken.IsCancellationRequested)
                {

                    //读取PLC I/O状态   12个数组
                    Byte[]   getPLCValueByteArray=pLCTool.ReadAllValue("VB100",12);
                    //判断 每个料架每层的箱子数

                    //1. 获取所有料架层  合并的箱子 料架层翻倍
                    List<Storagelocation> storagelocationList = await DbScoped.SugarScope.CopyNew().Queryable<Storagelocation>().ToListAsync();


                    //2. 获取点位表
                    List<PlcAddressTable> pointPositionList = await DbScoped.SugarScope.CopyNew().Queryable<PlcAddressTable>().ToListAsync();

                    List<Storagelocation> updateStoragelocationList=new List<Storagelocation>();
                    List<Inventorylog> inventorylogs = new List<Inventorylog>();

                    if (storagelocationList.Count() > 0) { 

                        foreach (Storagelocation layerItem in storagelocationList)
                        {
                            //2  获取这个料架层的点位表 
                            List<PlcAddressTable> thisLayItemPointPositionList= pointPositionList.Where(it => it.FkStorageId == layerItem.Id).ToList();

                            //3 判断这个料架层箱子的个数
                            if(thisLayItemPointPositionList!=null&& thisLayItemPointPositionList.Count()>0)
                            {
                                // 这一层箱子数  默认最小值为1
                                int packNum = 1;
                                foreach(PlcAddressTable i in thisLayItemPointPositionList)
                                {
                                    
                                    int row = i.ByteNum-100;
                                    int col = i.BitNum - 1;

                                  //  Console.WriteLine($"row={row},col={col},PLCValueByteArray[row]={getPLCValueByteArray.Length}");
                                    packNum= packNum+( GetInvertedBit(getPLCValueByteArray[row], col) ? 1 : 0);
                                    //Console.WriteLine($"row:{row}-col:{col} packNum:{packNum} ");
                                }
                                // 记录日志
                                if(packNum> layerItem.PackageNum)
                                {
                                    Storagelocation storagelocation = layerItem;
                 
                                    storagelocation.PackageNum = packNum;
                                    storagelocation.UpdatedBy = "补料";
                                    storagelocation.UpdatedTime = DateTime.Now;
                                    updateStoragelocationList.Add(storagelocation);



                                    Inventorylog inventorylog = new Inventorylog();
                                    //入库
                                    inventorylog.Id= SnowFlakeSingle.Instance.NextId().ToString();
                                    inventorylog.Operation = 2;
                                    inventorylog.PackageNum = packNum- layerItem.PackageNum;
                                    inventorylog.CreatedBy = "补料";
                                    inventorylog.CreatedTime = DateTime.Now.ToLocalTime();
                                    inventorylogs.Add(inventorylog);

                                }
                                else if(packNum < layerItem.PackageNum)
                                {

                                    Storagelocation storagelocation = layerItem;
                                    storagelocation.PackageNum = packNum;
                                    storagelocation.UpdatedBy = "出料";
                                    storagelocation.UpdatedTime = DateTime.Now;
                                    updateStoragelocationList.Add(storagelocation);

                                    //出库
                                    Inventorylog inventorylog = new Inventorylog();
                                    inventorylog.Id = SnowFlakeSingle.Instance.NextId().ToString();
                                    inventorylog.Operation = 1;
                                    inventorylog.PackageNum =layerItem.PackageNum - packNum ;
                                    inventorylog.CreatedBy = "出料";
                                    inventorylog.CreatedTime = DateTime.Now.ToLocalTime();
                                    inventorylogs.Add(inventorylog);
                                }
                              
                            }
                        }

                        //修正库存
                        if (updateStoragelocationList.Count() > 0)
                        {
                            await DbScoped.SugarScope.CopyNew().Updateable(updateStoragelocationList).ExecuteCommandAsync();
                        }
                      
                        //增加库存变更日志
                        if(inventorylogs.Count()>0)
                        {
                            await DbScoped.SugarScope.CopyNew().Insertable(inventorylogs).ExecuteCommandAsync();
                        }



                    }












                    //List <Storagelocation> storagelocationList = await DbScoped.SugarScope.CopyNew()
                    //.Queryable<Storagelocation>().Where(it => it.Id == index).ToListAsync();
                    //if (storagelocationList.Count > 0)
                    //{

                    //    foreach (var storagelocation in storagelocationList)
                    //    {

                    //        //遮挡不亮 false
                    //        bool result = pLCTool.ReadBit(storagelocation.PlcAddress2);
                    //        // 写补料日志
                    //        Inventorylog inventorylog = new Inventorylog();
                    //        inventorylog.Id = SnowFlakeSingle.Instance.NextId().ToString();
                    //        inventorylog.RackCode = storagelocation.RackCode;
                    //        // 合并货架的id
                    //        //int[] ids = {1,2,3,4,19,20,21,22 };
                    //        int PackageLine = 2;
                    //        //if (ids.Contains(storagelocation.Id))
                    //        //{
                    //        //    PackageLine = 1;
                    //        //}
                    //        if (result)
                    //        {
                    //            //缺料，需要补料
                    //            // 仓库库存修正
                    //            if (storagelocation.PackageNum > PackageLine)
                    //            {
                    //                storagelocation.PackageNum = PackageLine;
                    //                /*inventorylog.Operation = 1;
                    //                inventorylog.PackageNum = 1;
                    //                inventorylog.CreatedBy = "PLC";
                    //                inventorylog.CreatedTime = DateTime.Now.ToLocalTime();*/
                    //                await DbScoped.SugarScope.CopyNew().Updateable(storagelocation).ExecuteCommandAsync();
                    //                //await DbScoped.SugarScope.CopyNew().Insertable(inventorylog).ExecuteCommandAsync();
                                    

                    //            }
                    //        }
                    //        else
                    //        {
                    //            // 仓库库存修正
                    //            if (storagelocation.PackageNum <= PackageLine)
                    //            {
                    //                //不需要补料  补料成功
                    //                storagelocation.PackageNum = storagelocation.MaxCapacity;
                    //                inventorylog.Operation = 2;
                    //                inventorylog.PackageNum = storagelocation.MaxCapacity;
                    //                inventorylog.CreatedBy = "PLC";
                    //                inventorylog.CreatedTime = DateTime.Now.ToLocalTime();
                    //                await DbScoped.SugarScope.CopyNew().Updateable(storagelocation).ExecuteCommandAsync();
                    //                await DbScoped.SugarScope.CopyNew().Insertable(inventorylog).ExecuteCommandAsync();
                    //            }

                    //        }
                    //        //Console.WriteLine("永驻线程，正在读取对射传感器plc值  " + result + "地址:" + storagelocation.PlcAddress2);

                    //    }



                         

                    //}



                    //// await Task.Delay(500, stoppingToken);


                    //index++;
                    //if (index > indexMax)
                    //{
                    //    index = 1;
                    //}

                }
            } catch (Exception ex) {
                Console.WriteLine("DoanBackGround线程ExecuteAsync异常:" + ex.Message);
            }
          
        }

        public void Dispose()
        {
            try
            {
                pLCTool.ConnectClose();
                _cancellationTokenSource.Cancel();
                _executingTask.Wait();
                _cancellationTokenSource.Dispose();
            }
            catch (Exception ex)
            {
                Console.WriteLine("DoanBackGround线程Dispose异常:" + ex.Message);
            }

        }



    }
}