using log4net;
using log4net.Repository.Hierarchy;
using Prism.Commands;
using Prism.Events;
using Prism.Mvvm;
using Prism.Regions;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Speech.Synthesis;
using System.Text;
using System.Threading.Tasks;
using DM_Weight.Models;
using DM_Weight.msg;
using DM_Weight.Port;
using DM_Weight.util;
using System.Threading;
using SqlSugar;
using System.Configuration;
using DM_Weight.Services;

namespace DM_Weight.ViewModels
{
    public class SelfTakeDialogViewModel : BindableBase, IDialogAware, IRegionMemberLifetime
    {

        private readonly ILog logger = LogManager.GetLogger(typeof(SelfTakeDialogViewModel));
        public string Title => "自选取药";

        public event Action<IDialogResult> RequestClose;

        private static readonly DateTime Jan1st1970 = new DateTime
   (1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);

        private string WindowName = "SelfTakeWindow";

        private PortUtil _portUtil;
        IEventAggregator _eventAggregator;
        //private SqlSugarScope SqlSugarHelper.Db;
        private SqlHelperService _mysqlHelper;
        public SelfTakeDialogViewModel(PortUtil portUtil, IEventAggregator eventAggregator, SqlSugarScope sqlSugarScope, SqlHelperService mysqlHelper)
        {
            _portUtil = portUtil;
            _eventAggregator = eventAggregator;
            //this.SqlSugarHelper.Db = sqlSugarScope;
            _mysqlHelper = mysqlHelper;
        }

        void DoMyPrismEvent(DeviceMsg msg)
        {

            if (msg.WindowName.Equals(WindowName))
            {
                IGrouping<int, ChannelStock> grouping = enumerator.Current;
                int DrawerNo = grouping.Key;
                List<ChannelStock> channelStocks = grouping.ToList();

                switch (msg.EventType)
                {
                    // 抽屉打开
                    case EventType.DRAWEROPEN:


                        if (Status == 1)
                        {
                            if (channelStocks[0].process == 1)
                            {
                                channelStocks.ForEach(it => it.process = 2);
                            }
                        }

                        break;
                    // 抽屉关闭
                    case EventType.DRAWERCLOSE:
                        if (Status == 1)
                        {
                            if (channelStocks[0].process == 2)
                            {
                                channelStocks.ForEach(it => it.process = 3);
                            }
                            IGrouping<int, ChannelStock> groupingBefore = enumerator.Current;
                            int DrawerNoBefore = groupingBefore.Key;
                            if (enumerator.MoveNext())
                            {
                                IGrouping<int, ChannelStock> groupingAfter = enumerator.Current;
                                int DrawerNoAfter = groupingAfter.Key;
                                if (DrawerNoBefore < 9 && DrawerNoAfter > 8)
                                {
                                    Thread.Sleep(50);
                                }
                                OpenOneByOne();
                            }
                            // 已经全部取出
                            else
                            {
                                Status = 3;
                            }
                        }
                        break;
                    // 数量变化
                    case EventType.UPDATEQUANTITY:
                        if (Status == 1)
                        {
                            logger.Info($"抽屉【{DrawerNo}】库位药品数量【{msg.Quantitys}】");
                        }
                        break;
                    // 打开失败
                    case EventType.OPENERROR:
                        AlertMsg alertMsg = new AlertMsg
                        {
                            Message = msg.Message,
                            Type = MsgType.ERROR
                        };
                        _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                        Status = 0;
                        break;
                }
            }

        }

        private int _status = 0;

        public int Status
        {
            get => _status; set => SetProperty(ref _status, value);
        }


        private List<ChannelStock> _channelStocks;

        public List<ChannelStock> ChannelStocks
        {
            get => _channelStocks;
            set => SetProperty(ref _channelStocks, value);
        }

        private IEnumerable<IGrouping<int, ChannelStock>> enumerable;
        private IEnumerator<IGrouping<int, ChannelStock>> enumerator;


        public bool CanCloseDialog()
        {
            return Status == 0;
        }

        public void OnDialogClosed()
        {
            // 取消消息订阅
            _eventAggregator.GetEvent<PortUtilEvent>().Unsubscribe(DoMyPrismEvent);
        }

        public void OnDialogOpened(IDialogParameters parameters)
        {
            _eventAggregator.GetEvent<PortUtilEvent>().Subscribe(DoMyPrismEvent);
            List<ChannelStock> channelStocks = parameters.GetValue<List<ChannelStock>>("ChannelStocks");
            ChannelStocks = channelStocks;
            RequestData();
        }

        public void RequestData()
        {
            enumerable = ChannelStocks.GroupBy(cs => cs.DrawerNo, cs => cs);
            enumerator = enumerable.GetEnumerator();
        }

        public DelegateCommand OpenDrawer
        {
            get => new DelegateCommand(() =>
            {
                if (Status == 0)
                {
                    enumerator.MoveNext();
                    Status = 1;
                    OpenOneByOne();
                }

            });
        }

        private void OpenOneByOne()
        {
            IGrouping<int, ChannelStock> grouping = enumerator.Current;
            int DrawerNo = grouping.Key;
            List<ChannelStock> channelStocks = grouping.ToList();
            channelStocks.ForEach(it => it.process = 1);
            _portUtil.SpeakAsync("正在打开" + DrawerNo + "号抽屉");

            List<ChannelStock> singleChannels = new List<ChannelStock>();
            for (int i = 0; i < channelStocks.Count; i++)
            {
                ChannelStock copy = TransExpV2<ChannelStock, ChannelStock>.Trans(channelStocks[i]);
                singleChannels.Add(copy);
            } 
            singleChannels = singleChannels
                .GroupBy(it => new { it.DrawerNo, it.ColNo })
                .Select(it =>
                {
                    var ret = it.First();
                    ret.Quantity = it.Sum(it => it.Quantity);
                    ret.TakeQuantity = it.Sum(it => it.TakeQuantity);
                    return ret;
                })
                .ToList()
                .FindAll(it => it.BoardType != 1);

           
            // 发送取药数量
            singleChannels.ForEach(it =>
            {
                _portUtil.TakeQuantity(DrawerNo, it.ColNo, it.TakeQuantity, it.Quantity - it.TakeQuantity);
            });
            _portUtil.WindowName = WindowName;
            _portUtil.BoardType = singleChannels.Count > 0 ? singleChannels[0].BoardType : 1;
            _portUtil.ColNos = singleChannels.Select(it => it.ColNo).ToArray();
            _portUtil.Stocks = singleChannels.Select(it => it.Quantity).ToArray();
            _portUtil.DrawerNo = DrawerNo;
            _portUtil.Start();
        }

        private bool _isFinishClick = false;
        // 完成按钮
        public DelegateCommand TakeFinish
        {
            get => new DelegateCommand(() =>
            {
                if (!_isFinishClick)
                {
                    _isFinishClick = true;
                    List<ChannelStock> record = ChannelStocks.ToList();
                    string InvoiceId = "SELF_" + CurrentTimeMillis();


                    bool bFlag =_mysqlHelper.SaveSelfTakeInfo(record);
                    if (bFlag)
                    {
                        // 更新屏显库存
                        //List<ChannelStock> singleChannels = record.FindAll(it => it.BoardType != 1);
                        List<ChannelStock> singleChannels = ChannelStocks.Where(it => it.BoardType == 5)
                                                                         .GroupBy(it =>new { it.DrawerNo, it.ColNo })
                                                                         .Select(it =>
                                                                         {
                                                                             var ret = it.First();
                                                                             //ret.Quantity = it.Sum(itx => itx.Quantity);
                                                                             //ret.AddQuantity = it.Sum(itx => itx.AddQuantity);
                                                                             return ret;
                                                                         }).ToList();
                        if(singleChannels!=null&&singleChannels.Count>0)
                        {
                            for (int i = 0; i < singleChannels.Count; i++)
                            {
                                List<ChannelStock> channel = _mysqlHelper.GetChannelStockList(singleChannels[i].DrawerNo, singleChannels[i].ColNo);
                                    //将库位多批次的总库存数更新标签
                                    _portUtil.WriteQuantity(channel[0].DrawerNo, channel[0].ColNo, channel.Sum(c => c.Quantity));
                                    Thread.Sleep(500);
                                    //如果最近效期的批次库存为0则重新绑定批次效期标签为库存不为0的近效期的标签
                                    if (channel[0].Quantity == 0)
                                    {
                                        ChannelStock cs = channel.Where(cs => cs.Quantity > 0).OrderBy(it => it.EffDate).FirstOrDefault();
                                        if (cs != null)
                                        {
                                            _portUtil.WriteChannelInfo(6, cs.EffDate == null ? "" : cs.EffDate, cs.DrawerNo, cs.ColNo);
                                            Thread.Sleep(200);
                                            _portUtil.WriteChannelInfo(5, cs.ManuNo, cs.DrawerNo, cs.ColNo);
                                            Thread.Sleep(200);
                                            _portUtil.ShowContent(cs.DrawerNo, cs.ColNo);
                                        }
                                    }
                            }
                        }

                        AlertMsg alertMsg = new AlertMsg
                        {
                            Message = "操作完成，库存已更新",
                            Type = MsgType.SUCCESS,
                        };
                        _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                    }
                    else
                    {
                        logger.Info($"自选取药，库存更新失败");
                        AlertMsg alertMsg = new AlertMsg
                        {
                            Message = "库存更新失败",
                            Type = MsgType.ERROR,
                        };
                        _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                    }
                    Status = 0;
                    _isFinishClick = false;
                    RequestClose?.Invoke(new DialogResult(ButtonResult.OK));
                }

            });
        }

        public long CurrentTimeMillis()
        {
            return (long)(DateTime.UtcNow - Jan1st1970).TotalMilliseconds;
        }

        // 取消按钮
        public DelegateCommand CancleTake
        {
            get => new DelegateCommand(() =>
            {
                _portUtil.ResetData();
                Status = 0;
            });
        }

        public DelegateCommand BtnCloseCommand
        {
            get => new DelegateCommand(() =>
            {
                if (Status != 0)
                {
                    _portUtil.ResetData();
                    Status = 0;
                }
                //DialogParameters parameters = new DialogParameters();
                //parameters.Add("",);
                // 关闭当前窗口
                RequestClose?.Invoke(new DialogResult(ButtonResult.Cancel));
            });
        }

        public bool KeepAlive => true;
    }
}