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

namespace DM_Weight.ViewModels
{
    public class MultiOrderTakeDialogViewModel : BindableBase, IDialogAware, IRegionMemberLifetime
    {
        private readonly ILog logger = LogManager.GetLogger(typeof(OrderTakeDialogViewModel));
        public string Title => "多处方取药";


        public event Action<IDialogResult> RequestClose;

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

        private PortUtil _portUtil;
        IEventAggregator _eventAggregator;
        IDialogService _dialogService;
        public MultiOrderTakeDialogViewModel(PortUtil portUtil, IEventAggregator eventAggregator, IDialogService DialogService)
        {
            _dialogService = DialogService;
            _portUtil = portUtil;
            _eventAggregator = eventAggregator;
        }

        void DoMyPrismEvent(DeviceMsg msg)
        {

            if (msg.WindowName == "OrderTakeDrugWindow")
            {
                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}】库位取药数量【{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);
        }

        //多处方的处方号
        private string _multiOrderNo = "处方号：";
        public string MultiOrderNo
        {
            get => _multiOrderNo;
            set => SetProperty(ref _multiOrderNo, value);
        }
        private ObservableCollection<OrderInfo>? _orderInfo;


        public ObservableCollection<OrderInfo>? OrderInfo
        {
            get => _orderInfo;
            set => SetProperty(ref _orderInfo, value);
        }

        private List<OrderDetail> orderDetails { get; set; }

        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);
            OrderInfo = parameters.GetValue<ObservableCollection<OrderInfo>>("orderInfo");
            MultiOrderNo += string.Join(",   ", OrderInfo.Select(o => o.OrderNo));
            RequestData();
        }

        public async void RequestData()
        {
            orderDetails = SqlSugarHelper.Db.Queryable<OrderDetail>()
              //.Includes<DrugInfo>(od => od.DrugInfo)
              .InnerJoin(SqlSugarHelper.Db.Queryable<ChannelStock>().Where(cs => cs.DrawerType == 1).Where(cs => cs.MachineId.Equals(ConfigurationManager.AppSettings["machineId"] ?? "DM1")).GroupBy(cs => cs.DrugId), (od, t) => od.DrugId == t.DrugId)
              .Where(od => OrderInfo.Select(o => o.OrderNo).Contains(od.OrderNo)).GroupBy(od=>od.DrugId)

              .Select(od=>new OrderDetail { DrugId=od.DrugId,SetEffDate=od.SetEffDate,SetManuNo=od.SetManuNo, Quantity=SqlFunc.AggregateSum(od.Quantity) })

                //.Where(od => od.OrderNo. OrderInfo.OrderNo)
                .ToList();


            List<ChannelStock> channelStocks = new List<ChannelStock>();
            List<string> msg = new List<string>();
            for (int i = 0; i < orderDetails.Count; i++)
            {
                OrderDetail orderDetail = orderDetails[i];

                List<ChannelStock> HasQChannels = SqlSugarHelper.Db.Queryable<ChannelStock>()
                    .Includes<DrugInfo>(cs => cs.DrugInfo)
                    .Where(cs => cs.Quantity > 0)
                    .Where(cs => cs.DrawerType == 1)
                    .Where(cs => cs.MachineId.Equals(ConfigurationManager.AppSettings["machineId"] ?? "DM1"))
                    .WhereIF(!string.IsNullOrEmpty(orderDetail.SetEffDate), cs => cs.EffDate.Equals(orderDetail.SetEffDate))
                    .WhereIF(!string.IsNullOrEmpty(orderDetail.SetManuNo), cs => cs.ManuNo.Equals(orderDetail.SetManuNo))
                    .Where(cs => cs.DrugId == orderDetail.DrugId)
                    .OrderBy(cs => cs.EffDate)
                    .OrderBy(cs => cs.DrawerNo)
                    .ToList();
                int total = HasQChannels.Sum(it => it.Quantity);
                int TakeQ = orderDetail.Quantity;
                int multiTakeQ = orderDetail.Quantity;
                List<ChannelStock> multiTake = new List<ChannelStock>();
                //multiTakeQ = orderDetails.Where(c => c.DrugId == orderDetail.DrugId).Sum(c => c.Quantity);
                // 说明数量足够
                if (total >= multiTakeQ)
                {
                    for (int j = 0; TakeQ > 0; j++)
                    {
                        ChannelStock stock = HasQChannels[j];

                        if (TakeQ > stock.Quantity)
                        {

                            //#region 存在该库存且库存数量大于待取数量则把取药数量加上
                            //var varChannelStock = channelStocks.Where(c => c.Location == stock.Location && c.Quantity > c.TakeQuantity + TakeQ).ToList();
                            //if (varChannelStock != null && varChannelStock.Count > 0)
                            //{
                            //    channelStocks.Where(c => c.Location == stock.Location).Select(c => c.TakeQuantity += TakeQ).ToList();
                            //    break;
                            //}
                            //#endregion
                            stock.TakeQuantity = stock.Quantity;
                            channelStocks.Add(stock);
                            TakeQ -= stock.Quantity;
                        }
                        else
                        {

                            //#region 存在该库存且库存数量大于待取数量则把取药数量加上
                            //var varChannelStock = channelStocks.Where(c => c.Location == stock.Location && c.Quantity > c.TakeQuantity + TakeQ).ToList();
                            //if (varChannelStock != null && varChannelStock.Count > 0)
                            //{
                            //    channelStocks.Where(c => c.Location == stock.Location).Select(c => c.TakeQuantity += TakeQ).ToList();
                            //    break;
                            //}
                            //#endregion
                            stock.TakeQuantity = TakeQ;
                            channelStocks.Add(stock);
                            TakeQ = 0;
                        }
                    }
                }
                else
                {
                    //msg.Add($"药品【{orderDetail.DrugInfo.DrugName}】库存不足，应取【{TakeQ}】库存【{total}】");
                    msg.Add($"药品【{HasQChannels[0].DrugInfo.DrugName}】库存不足，应取【{TakeQ}】库存【{total}】");
                }
            }
            if (msg.Count > 0)
            {
                RequestClose?.Invoke(new DialogResult(ButtonResult.Cancel));
                //MessageBox.Show(string.Join("\n", msg));
                DialogParameters dialogParameters = new DialogParameters();
                dialogParameters.Add("msgInfo", msg);
                DialogServiceExtensions.ShowDialogHost(_dialogService, "ShowMessageDialog", dialogParameters, "RootDialog");

            }
            else
            {
                channelStocks.Sort((a, b) =>
                {
                    if ((a.DrawerNo - b.DrawerNo) == 0)
                    {
                        return a.ColNo - b.ColNo;
                    }
                    return a.DrawerNo - b.DrawerNo;
                });
                ChannelStocks = channelStocks;


            }
        }
        public DelegateCommand OpenDrawer
        {
            get => new DelegateCommand(async () =>
            {
                if (Status == 0)
                {
                    enumerable = ChannelStocks.GroupBy(cs => cs.DrawerNo, cs => cs);
                    enumerator = enumerable.GetEnumerator();
                    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 = channelStocks.FindAll(it => it.BoardType != 1);

            // 发送取药数量
            singleChannels.ForEach(it =>
            {
                try
                {

                    _portUtil.TakeQuantity(DrawerNo, it.ColNo, it.TakeQuantity, it.Quantity - it.TakeQuantity);
                }
                catch (Exception ex)
                {
                    AlertMsg alertMsg = new AlertMsg
                    {
                        Message = $"打开抽屉异常{ex.Message}",
                        Type = MsgType.ERROR,
                    };
                    _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                }
            });

            _portUtil.WindowName = "OrderTakeDrugWindow";
            _portUtil.BoardType = singleChannels.Count > 0 ? singleChannels[0].BoardType : 1;
            _portUtil.ColNos = singleChannels.Select(it => it.ColNo).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.FindAll(it => it.TakeQuantity > 0).ToList();

                    //根据处方单数量分别更新处方状态、写记录信息
                    if (OrderInfo.Count > 0)
                    {

                        for (int j = 0; j < OrderInfo.Count; j++)
                        {
                            string InvoiceId = OrderInfo[j].OrderNo;
                            var f = SqlSugarHelper.Db.UseTran(() =>
                            {
                                //SqlSugarHelper.Db.Updateable(new OrderInfo()
                                //{
                                //    DmStatus = 1,
                                //    OrderNo = OrderInfo[j].OrderNo
                                //}).UpdateColumns(it => new { it.DmStatus }).WhereColumns(it => new { it.OrderNo }).ExecuteCommand();

                                SqlSugarHelper.Db.Insertable(new OrderFinish()
                                {
                                    OrderNo = OrderInfo[j].OrderNo,
                                    PatientId = OrderInfo[j].PatientId,
                                    Pharmacy = OrderInfo[j].Pharmacy,
                                    State = 1,
                                    Operator = HomeWindowViewModel.Operator?.Nickname,
                                });
                                for (int i = 0; i < record.Count; i++)
                                {

                                    List<OrderDetail> orderDet = SqlSugarHelper.Db.Queryable<OrderDetail>().Where(od => od.OrderNo == OrderInfo[j].OrderNo && od.DrugId == record[i].DrugId).ToList();
                                    //该对方没有这个药，跳出循环
                                    if (orderDet == null || orderDet.Count <= 0)
                                        continue;
                                    int orderTakeQuantity = orderDet[0].Quantity;
                                    ChannelStock it = record[i];
                                    // 更新数据 库存信息
                                    SqlSugarHelper.Db.Updateable(new ChannelStock()
                                    {
                                        Quantity = it.Quantity - it.TakeQuantity,
                                        ManuNo = it.ManuNo,
                                        EffDate = it.EffDate,
                                        Id = it.Id,
                                    }).UpdateColumns(it => new { it.Quantity, it.ManuNo, it.EffDate }).ExecuteCommand();
                                    // 获取更新完库存后的药品库存
                                    List<ChannelStock> nowChannels = SqlSugarHelper.Db.Queryable<ChannelStock>()
                                        .Where(cs => cs.MachineId.Equals(it.MachineId))
                                        .Where(cs => cs.DrugId.Equals(it.DrugId))
                                        .Where(cs => cs.DrawerType == 1)
                                        .ToList();

                                    // 保存数据 出库记录
                                    SqlSugarHelper.Db.Insertable(new MachineRecord()
                                    {
                                        MachineId = it.MachineId,
                                        DrawerNo = it.DrawerNo,
                                        ColNo = it.ColNo,
                                        DrugId = it.DrugId,
                                        ManuNo = it.ManuNo,
                                        EffDate = !String.IsNullOrEmpty(it.EffDate) ? DateTime.ParseExact(it.EffDate, "yyyy-MM-dd", System.Globalization.CultureInfo.CurrentCulture) : null,
                                        Operator = HomeWindowViewModel.Operator?.Id,
                                        Reviewer = HomeWindowViewModel.Reviewer?.Id,
                                        OperationTime = DateTime.Now,
                                        Quantity = orderTakeQuantity,
                                        Type = 2,
                                        InvoiceId = InvoiceId
                                        //,StockQuantity = nowChannels.Sum(it => it.Quantity)
                                    }).ExecuteCommand();
                                }
                                //更新处方状态
                                SqlSugarHelper.Db.Updateable(new OrderInfo()
                                {
                                    DmStatus = 1,
                                    OrderNo = OrderInfo[j].OrderNo
                                }).UpdateColumns(it => new { it.DmStatus }).WhereColumns(it => new { it.OrderNo }).ExecuteCommand();
                                return true;
                            });
                            if (f.Data)
                            {


                                //});
                                // 更新屏显库存
                                List<ChannelStock> singleChannels = record.FindAll(it => it.BoardType != 1);
                                if ((singleChannels.Count > 0 ? singleChannels[0].BoardType : 1) == 5)
                                {
                                    singleChannels.ForEach(it =>
                                    {
                                        _portUtil.WriteQuantity(it.DrawerNo, it.ColNo, it.Quantity - it.TakeQuantity);
                                    });
                                }
                                AlertMsg alertMsg = new AlertMsg
                                {
                                    Message = "抽屉取药完成，库存已更新",
                                    Type = MsgType.SUCCESS,
                                };
                                _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                            }
                            if (!f.IsSuccess)
                            {
                                AlertMsg alertMsg = new AlertMsg
                                {
                                    Message = "抽屉取药完成，库存更新失败！",
                                    Type = MsgType.ERROR,
                                };
                                _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                            }
                        }
                        Status = 0;
                        _isFinishClick = false;
                        _portUtil.OperateFinish = true;
                        //RequestClose?.Invoke(new DialogResult(ButtonResult.Cancel));
                        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;
                _portUtil.OperateFinish = true;
            });
        }

        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 => false;
    }
}