using HighWayIot.Config;
using HighWayIot.Log4net;
using HighWayIot.Repository.domain;
using HighWayIot.Repository.service;
using HighWayIot.Repository.service.Impl;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace Aucma.Scada.Business
{
    public class InStoreBusiness
    {
        private static readonly Lazy<InStoreBusiness> lazy = new Lazy<InStoreBusiness>(() => new InStoreBusiness());
        public static InStoreBusiness Instance
        {
            get
            {
                return lazy.Value;
            }
        }

        private LogHelper logHelper = LogHelper.Instance;

        private IBaseSpaceInfoService _spaceInfoService = new BaseSpaceInfoServiceImpl();

        private IRealTaskInfoService _taskInfoService = new RealTaskInfoServiceImpl();

        private AppConfig appConfig = AppConfig.Instance;

        /// <summary>
        /// 初始化入库任务
        /// </summary>
        /// <param name="message"></param>
        public delegate void RefreshInStoreTask(RealTaskInfo taskInfos);
        public event RefreshInStoreTask RefreshInStoreTaskEvent;

        /// <summary>
        /// 扫码信息刷新
        /// </summary>
        /// <param name="materialCode"></param>
        /// <param name="materialName"></param>
        /// <param name="spaceName"></param>
        /// <param name="materialType"></param>
        public delegate void RefreshScanMateriaCode(string materialCode,string materialName,string spaceName,string materialType);
        public event RefreshScanMateriaCode RefreshScanMateriaCodeEvent;

        /// <summary>
        /// 日志信息刷新
        /// </summary>
        /// <param name="message"></param>
        public delegate void RefreshLogMessage(string message);
        public event RefreshLogMessage RefreshLogMessageEvent;

        private InStoreBusiness()
        {
            StartPassDown();
        }

        private void HandleTimer()
        {
            InStore("X-001", "SC232");
        }

        /// <summary>
        /// 入库
        /// </summary>
        /// <param name="storeCode"></param>
        /// <param name="materialType"></param>
        private void InStore(string storeCode, string materialCode)
        {
            try
            {
                PrintLogInfoMessage($"扫码成功，物料码：{materialCode}");
                string materialType = materialCode;
                var spaceInfo = _spaceInfoService.InStoreGetSpaceInfoByMaterialType(storeCode, materialType);
                if (spaceInfo != null)
                {
                    PrintLogInfoMessage($"匹配货道：{spaceInfo.spaceName}");
                    RefreshScanMateriaCodeEvent?.Invoke(materialCode, materialType, spaceInfo.spaceName, storeCode); //刷新界面扫码信息
                    CreateInStoreTask(spaceInfo, materialCode); //创建入库任务
                }
                else
                {
                    //报警停线
                }
            }
            catch (Exception ex)
            {
                PrintLogErrorMessage("入库业务异常", ex);
            }
        }

        /// <summary>
        /// 创建入库任务
        /// </summary>
        /// <param name="spaceInfo"></param>
        private void CreateInStoreTask(BaseSpaceInfo spaceInfo, string materialCode)
        {
            //生成入库任务依次下发至PLC
            RealTaskInfo realTaskInfo = new RealTaskInfo();
            realTaskInfo.taskType = 1;
            realTaskInfo.taskCode = System.Guid.NewGuid().ToString("N").Substring(0,6);
            realTaskInfo.storeCode = spaceInfo.storeCode;
            realTaskInfo.spaceCode = spaceInfo.spaceCode;
            realTaskInfo.materialType = spaceInfo.materialType;
            realTaskInfo.materialCode = System.Guid.NewGuid().ToString("N").Substring(0, 6); ;
            realTaskInfo.planAmount = 1;
            realTaskInfo.taskStatus = 1;
            realTaskInfo.createTime = DateTime.Now;
            bool result = _taskInfoService.AddTaskInfo(realTaskInfo);
            if (result)
            {
                PrintLogInfoMessage("入库任务创建成功");

                RefreshInStoreTaskEvent?.Invoke(realTaskInfo);
            }
            else
            {
                PrintLogInfoMessage("入库任务创建失败");
            }
        }

        #region 轮询获取入库任务下发至PLC，等待PLC执行反馈，完成后再次下发

        private SemaphoreSlim shellSemaphore = new SemaphoreSlim(0);

        private SemaphoreSlim linerSemaphore = new SemaphoreSlim(0);

        private void StartPassDown()
        {

            Task.Run(() =>
            {
                while (true)
                {
                    PassDownShellTask();
                    Thread.Sleep(1000);
                }
            });

            Task.Run(() =>
            {
                while (true)
                {
                    PassDownLinerTask();
                    Thread.Sleep(1000);
                }
            });
        }


        /// <summary>
        /// 依次获取箱壳任务队列进行下发
        /// </summary>
        /// <param name="source"></param>
        /// <param name="e"></param>
        private void PassDownShellTask()
        {
            RealTaskInfo taskInfo = GetAwaitSendTask(appConfig.shellStoreCode);
            if(taskInfo != null)
            {
                PrintLogInfoMessage($"下发箱壳入库任务：{taskInfo.taskCode}；仓库{taskInfo.storeCode}；货道：{taskInfo.spaceCode}");

                if (shellSemaphore.Wait(TimeSpan.FromSeconds(10)))
                {
                    // 收到反馈
                    PrintLogInfoMessage("箱壳收到反馈，继续执行");
                }
                else
                {
                    PrintLogInfoMessage("超时未反馈");
                }

                //shellSemaphore.Wait(); //一直堵塞直到信号量释放
            }
            else
            {
                PrintLogInfoMessage("未获取到需要下发的箱壳入库任务");

                Thread.Sleep(5000);
            }

        }

        /// <summary>
        /// 依次获取内胆任务队列进行下发
        /// </summary>
        private void PassDownLinerTask()
        {
            RealTaskInfo taskInfo = GetAwaitSendTask(appConfig.linerStoreCode);
            if(taskInfo != null)
            {
                PrintLogInfoMessage($"下发内胆入库任务：{taskInfo.taskCode}；仓库{taskInfo.storeCode}；货道：{taskInfo.spaceCode}");

                if (linerSemaphore.Wait(TimeSpan.FromSeconds(10)))
                {
                    // 收到反馈
                    PrintLogInfoMessage("内胆收到反馈，继续执行");
                }
                else
                {
                    PrintLogInfoMessage("超时未反馈");
                }
                //semaphore.Wait(); //一直堵塞直到信号量释放
            }
            else
            {
                PrintLogInfoMessage("未获取到需要下发的内胆入库任务");

                Thread.Sleep(5000);
            }
        }

        /// <summary>
        /// 获取待执行的入库任务
        /// </summary>
        /// <param name="storeCode"></param>
        /// <returns></returns>
        private RealTaskInfo GetAwaitSendTask(string storeCode)
        {
            RealTaskInfo taskInfo = null;

            try
            {
                taskInfo = _taskInfoService.GetTaskInfoByStoreCode(storeCode, 1);

                if(taskInfo != null)
                {
                    taskInfo.taskStatus = 2;
                    _taskInfoService.UpdateTaskInfo(taskInfo);
                }

            }
            catch (Exception ex)
            {
                PrintLogErrorMessage("获取待执行的入库任务异常", ex);
            }

            return taskInfo;
        }

        /// <summary>
        /// 箱壳执行反馈
        /// </summary>
        private void ShellTaskFeedback()
        {

            Thread.Sleep(4000);

            PrintLogInfoMessage("箱壳执行完成，自动释放信号量");

            shellSemaphore.Release();
        }

        /// <summary>
        /// 内胆执行反馈
        /// </summary>
        private void LinerTaskFeedback()
        {
            Thread.Sleep(8000);

            PrintLogInfoMessage("内胆执行完成，自动释放信号量");

            linerSemaphore.Release();
        }
        #endregion

        /// <summary>
        /// 入库完成
        /// </summary>
        /// <param name="storeCode"></param>
        /// <param name="spaceCode"></param>
        /// <param name="materialType"></param>
        private void InStoreFinish(string taskCode,string storeCode)
        {
            try
            {
                var taskInfo = _taskInfoService.GetTaskInfoByTaskCode(taskCode, storeCode);
                if (taskInfo != null)
                {
                    var spaceInfo = _spaceInfoService.GetSpaceInfoBySpaceCode(taskInfo.storeCode, taskInfo.spaceCode);

                    if (spaceInfo != null)
                    {
                        //读取PLC获取货道信息：存放数量、在途数量
                        spaceInfo.materialType = taskInfo.materialType;
                        _spaceInfoService.UpdateSpaceInfo(spaceInfo);

                    }
                    //清除任务信息
                    _taskInfoService.DeleteTaskInfo(taskCode, storeCode);
                }

            }
            catch (Exception ex)
            {
                PrintLogErrorMessage("入库完成逻辑处理异常", ex);
            }
        }

        /// <summary>
        /// 日志输出，界面刷新同时记录文件
        /// </summary>
        /// <param name="message"></param>
        private void PrintLogInfoMessage(string message)
        {
            RefreshLogMessageEvent?.Invoke(message);
            logHelper.Info(message);
        }

        /// <summary>
        /// 异常日志输出
        /// </summary>
        /// <param name="message"></param>
        /// <param name="ex"></param>
        private void PrintLogErrorMessage(string message, Exception ex = null)
        {
            RefreshLogMessageEvent?.Invoke(message);
            logHelper.Error(message, ex);
        }
    }
}