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.Configuration;
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;

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

        private readonly ILog logger = LogManager.GetLogger(typeof(ReturnDrugDialogViewModel));
        public string Title => "归还药品(记录)";

        public event Action<IDialogResult> RequestClose;

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

        private string WindowName = "ReturnDrug1Window";

        private PortUtil _portUtil;
        IEventAggregator _eventAggregator;

        private MachineRecord _machineRecord;
        public MachineRecord MachineRecord
        {
            get { return _machineRecord; }
            set { SetProperty(ref _machineRecord, value); }
        }

        public ReturnDrugDialogViewModel(PortUtil portUtil, IEventAggregator eventAggregator)
        {
            _portUtil = portUtil;
            _eventAggregator = eventAggregator;
        }

        void DoMyPrismEvent(DeviceMsg msg)
        {

            if (msg.WindowName.Equals(WindowName))
            {

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


                        if (Status == 1)
                        {
                            Status = 2;
                        }

                        break;
                    // 抽屉关闭
                    case EventType.DRAWERCLOSE:
                        if (Status == 2)
                        {
                            Status = 3;
                        }
                        break;
                    // 数量变化
                    case EventType.UPDATEQUANTITY:
                        try
                        {
                            if (Status == 2)
                            {
                                ReturnQuantity = msg.Quantitys[ChannelStock.ColNo - 1];

                                logger.Info($"抽屉【{ChannelStock.DrawerNo}】库位药品数量【{msg.Quantitys}】");
                            }
                        }
                        catch (Exception e)
                        {
                            logger.Error(e);
                        }
                        
                        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 ChannelStock _channelStock;

        public ChannelStock ChannelStock
        {
            get => _channelStock;
            set => SetProperty(ref _channelStock, value);
        }

        private int _returnQuantity;

        public int ReturnQuantity
        {
            get => _returnQuantity;
            set
            {
                if (value < 0)
                {
                    throw new ArgumentException("还药数量不能是负数");
                }
                if (value > MachineRecord.CanReturnQuantity)
                {
                    throw new ArgumentException("还药数量超出");
                }
                SetProperty(ref _returnQuantity, value);
            }
        }


        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);

            MachineRecord _record = parameters.GetValue<MachineRecord>("record");
            MachineRecord = _record;
            ReturnQuantity = MachineRecord.CanReturnQuantity;

            RequestData();
        }

        public void RequestData()
        {
            List<ChannelStock> queryData = SqlSugarHelper.Db.Queryable<ChannelStock>()
                .Where(cs => cs.DrugId == MachineRecord.DrugId)
                .Where(cs => cs.MachineId.Equals(ConfigurationManager.AppSettings["machineId"] ?? "DM1"))
                .WhereIF(MachineRecord.ManuNo != null,cs => cs.ManuNo == MachineRecord.ManuNo)
                .OrderBy(cs => cs.DrawerNo)
                .OrderBy(cs => cs.ColNo)
                .ToList();
            ChannelStocks = queryData;
            if(ChannelStocks.Count > 0)
            {
                ChannelStock = ChannelStocks[0];
            }
        }

        public DelegateCommand OpenDrawer
        {
            get => new DelegateCommand(() =>
            {
                if (ChannelStock != null)
                {
                    Status = 1;

                    _portUtil.SpeakAsync("正在打开" + ChannelStock.DrawerNo + "号抽屉");

                    _portUtil.WindowName = WindowName;
                    _portUtil.BoardType = ChannelStock.BoardType;
                    _portUtil.ColNos = new int[] { ChannelStock.ColNo };
                    _portUtil.DrawerNo = ChannelStock.DrawerNo;
                    _portUtil.Start();
                } else
                {
                    AlertMsg alertMsg = new AlertMsg
                    {
                        Message = "请选择退还药品要放入的库位！",
                        Type = MsgType.ERROR,
                    };
                    _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                }

            }, () => Status == 0);
        }


        private bool _isFinishClick = false;

        public bool IsFinishClick { get => _isFinishClick; set => SetProperty(ref _isFinishClick, value); }
        // 完成按钮
        public DelegateCommand TakeFinish
        {
            get => new DelegateCommand(() =>
            {
                IsFinishClick = true;
                string InvoiceId = "RETURN_" + CurrentTimeMillis();
                var f = SqlSugarHelper.Db.UseTran(() =>
                {
                        
                    // 更新数据 库存信息
                    SqlSugarHelper.Db.Updateable(new ChannelStock()
                    {
                        Quantity = ChannelStock.Quantity + ReturnQuantity,
                        Id = ChannelStock.Id,
                    }).UpdateColumns(it => new { it.Quantity }).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(ChannelStock.MachineId))
                        .Where(cs => cs.DrugId.Equals(ChannelStock.DrugId))
                        .Where(cs => cs.DrawerType == 1)
                        .ToList();
                    // 更新数据 取药记录 设置还药数量、状态
                    SqlSugarHelper.Db.Updateable(new MachineRecord()
                    {
                        ReturnQuantity1 = MachineRecord.ReturnQuantity1 + ReturnQuantity,
                        Id = MachineRecord.Id,
                        Status = (MachineRecord.CanReturnQuantity - ReturnQuantity) == 0 ? 2 : 1,
                    }).UpdateColumns(it => new { it.ReturnQuantity1, it.Status }).ExecuteCommand();

                    // 保存数据 还药记录
                    SqlSugarHelper.Db.Insertable(new MachineRecord()
                        {
                            MachineId = ChannelStock.MachineId,
                            DrawerNo = ChannelStock.DrawerNo,
                            ColNo = ChannelStock.ColNo,
                            DrugId = ChannelStock.DrugId,
                            ManuNo = ChannelStock.ManuNo,
                            EffDate = !String.IsNullOrEmpty(ChannelStock.EffDate) ? DateTime.ParseExact(ChannelStock.EffDate, "yyyy-MM-dd", System.Globalization.CultureInfo.CurrentCulture) : null,
                            Operator = HomeWindowViewModel.Operator?.Id,
                            OperationTime = DateTime.Now,
                            Quantity = ReturnQuantity,
                            Type = 31,
                            InvoiceId = InvoiceId,
                            GetId = MachineRecord.Id
                            //,StockQuantity = nowChannels.Sum(it => it.Quantity)
                        }).ExecuteCommand();

                    //保存账册
                    SqlSugarHelper.Db.Insertable(new AccountBookG2()
                    {
                        DrugId = Convert.ToInt32(ChannelStock.DrugId),
                        Type = 1,
                        Department = ConfigurationManager.AppSettings["department"].ToString(),
                        InvoiceNo = InvoiceId,
                        ManuNo = ChannelStock.ManuNo,
                        EffDate = ChannelStock.EffDate,
                        AddQuantity = ReturnQuantity,
                        UserId1 = HomeWindowViewModel.Operator?.Id,
                        UserId2 = HomeWindowViewModel.Reviewer?.Id,
                        MachineId = ConfigurationManager.AppSettings["machineId"].ToString(),
                        CreateDate = DateTime.Now.ToString("yyyy-MM-dd"),
                        CreateTime = DateTime.Now

                    }).ExecuteCommand();
                    //修改凌晨生成的日结存数据
                    AccountBookG2 accountBookG2Day = SqlSugarHelper.Db.Queryable<AccountBookG2>()
                    .Where(ab => ab.MachineId.Equals(ChannelStock.MachineId))
                    .Where(ab => ab.Type == 3)
                    .Where(ab => ab.DrugId == Convert.ToInt32(ChannelStock.DrugId))
                    .Where(ab => ab.ManuNo == ChannelStock.ManuNo)
                    .Where(ab => ab.CreateDate == DateTime.Now.ToString("yyyy-MM-dd")).First();
                    accountBookG2Day.ManuStock = accountBookG2Day.ManuStock + ChannelStock.ReturnQuantity;

                    //修改凌晨生成的总结存数据
                    AccountBookG2 accountBookG2Total = SqlSugarHelper.Db.Queryable<AccountBookG2>()
                    .Where(ab => ab.MachineId.Equals(ChannelStock.MachineId))
                    .Where(ab => ab.Type == 4)
                    .Where(ab => ab.DrugId == Convert.ToInt32(ChannelStock.DrugId))
                    .Where(ab => ab.CreateDate == DateTime.Now.ToString("yyyy-MM-dd")).First();

                    accountBookG2Total.TotalStock = accountBookG2Total.TotalStock + ChannelStock.ReturnQuantity;

                    SqlSugarHelper.Db.Updateable(accountBookG2Day).ExecuteCommand();

                    SqlSugarHelper.Db.Updateable(accountBookG2Total).ExecuteCommand();



                    return true;
                });
                if (f.Data)
                {
                    // 更新屏显库存
                    if (ChannelStock.BoardType == 5)
                    {
                        _portUtil.WriteQuantity(ChannelStock.DrawerNo, ChannelStock.ColNo, ChannelStock.Quantity + ReturnQuantity);
                    }

                    AlertMsg alertMsg = new AlertMsg
                    {
                        Message = "操作完成，库存已更新",
                        Type = MsgType.SUCCESS,
                    };
                    _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                }
                if (!f.IsSuccess)
                {
                    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));

            }, () => !IsFinishClick && ReturnQuantity > 0).ObservesProperty(() => IsFinishClick).ObservesProperty(() => ReturnQuantity);
        }

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

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

        public DelegateCommand BtnCloseCommand
        {
            get => new DelegateCommand(() =>
            {
                // 关闭当前窗口
                RequestClose?.Invoke(new DialogResult(ButtonResult.Cancel));
            }, () => Status == 0).ObservesProperty(() => Status);
        }

        public bool KeepAlive => false;
    }
}