using log4net;
using Prism.Commands;
using Prism.Events;
using Prism.Mvvm;
using Prism.Regions;
using SqlSugar;
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 CheckStockWindowViewModel : BindableBase, IConfirmNavigationRequest, IRegionMemberLifetime
    {
        private readonly ILog logger = LogManager.GetLogger(typeof(CheckStockWindowViewModel));
        private List<ChannelStock> _channelStocks = new();

        public List<ChannelStock> ChannelStocks
        {
            get => _channelStocks;
            set => SetProperty(ref _channelStocks, value);
        }
        private static readonly DateTime Jan1st1970 = new DateTime
    (1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);

        private PortUtil _portUtil;
        IEventAggregator _eventAggregator;

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

        void DoMyPrismEvent(DeviceMsg msg)
        {
            if (msg.WindowName == "CheckStockWindow")
            {
                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:
                        if (Status == 2)
                        {
                            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;

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

        private int _drawerNo = 1;

        public int DrawerNo
        {
            get => _drawerNo;
            set => SetProperty(ref _drawerNo, value);
        }

        private bool _is8Drawer = true;

        public bool Is8Drawer { get => _is8Drawer; set => SetProperty(ref _is8Drawer, value); }

        private bool _is16Drawer = false;

        public bool Is16Drawer { get => _is16Drawer; set => SetProperty(ref _is16Drawer, value); }


        private bool _is17Drawer = false;

        public bool Is17Drawer { get => _is17Drawer; set => SetProperty(ref _is17Drawer, value); }
        public DelegateCommand<string> UpdateDrawerNo
        {
            get => new DelegateCommand<string>((DrawerNo) =>
            {
                this.DrawerNo = Convert.ToInt32(DrawerNo);
                RequestData();
            }, (DrawerNo) => Status == 0
            );
        }
        public DelegateCommand OpenDrawer
        {
            get => new DelegateCommand(() =>
            {
                Status = 1;
                _portUtil.SpeakAsync("正在打开" + DrawerNo + "号抽屉");


                List<ChannelStock> singleChannels = ChannelStocks.FindAll(it => it.BoardType != 1);

                _portUtil.WindowName = "CheckStockWindow";
                _portUtil.Operate = true;
                _portUtil.BoardType = singleChannels.Count > 0 ? singleChannels[0].BoardType : 1;
                _portUtil.ColNos = singleChannels.Select(it => it.ColNo).ToArray();
                _portUtil.DrawerNo = DrawerNo;
                _portUtil.Start();

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

        private bool _isFinishClick = false;

        // 完成按钮
        public DelegateCommand TakeFinish
        {
            get => new DelegateCommand(async() =>
            {
                _isFinishClick = true;
                List<ChannelStock> record = ChannelStocks.FindAll(it => it.Quantity != it.CheckQuantity).ToList();
                if (record.Count > 0)
                {
                    string InvoiceId = "CHECK_" + CurrentTimeMillis();
                    var f = SqlSugarHelper.Db.UseTran(() =>
                    {

                        for (int i = 0; i < record.Count; i++)
                        {
                            ChannelStock it = record[i];


                            // 更新数据 库存信息
                            SqlSugarHelper.Db.Updateable(new ChannelStock()
                            {
                                Quantity = it.CheckQuantity,
                                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 盘点记录
                            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 =  it.CheckQuantity - it.Quantity,
                                Type = 4,
                                InvoiceId = InvoiceId
                                //,StockQuantity = nowChannels.Sum(it => it.Quantity),
                                //CheckQuantity = it.CheckQuantity
                            }).ExecuteCommand();


                            logger.Info($"库存盘点->库位【{it.DrawerNo}-{it.ColNo}】药品【{it.DrugInfo.DrugName}】盘点前库存【{it.Quantity}】，更改后【{it.CheckQuantity}】");
                        }
                        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(async it =>
                            {
                                await Task.Delay(200);
                                _portUtil.WriteQuantity(it.DrawerNo, it.ColNo, it.CheckQuantity);
                            });
                        }
                        if ((singleChannels.Count > 0 ? singleChannels[0].BoardType : 1) == 35)
                        {
                            for (int i = 0; i < singleChannels.Count; i++)
                            {
                                await Task.Delay(200);
                                await _portUtil.WriteChannelInfoMethod(2, (singleChannels[i].Quantity + singleChannels[i].AddQuantity).ToString(), singleChannels[i].DrawerNo, singleChannels[i].ColNo);
                                await Task.Delay(200);
                                await _portUtil.ShowContentMethod(singleChannels[i].DrawerNo, singleChannels[i].ColNo);
                            }
                        }
                        RequestData();
                        AlertMsg alertMsg = new AlertMsg
                        {
                            Message = "抽屉盘点完成，库存已更新",
                            Type = MsgType.SUCCESS,
                        };
                        _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                    }
                    if (!f.IsSuccess)
                    {
                        AlertMsg alertMsg = new AlertMsg
                        {
                            Message = "抽屉盘点完成，库存更新失败！",
                            Type = MsgType.ERROR,
                        };
                        _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                    }
                    Status = 0;
                    _isFinishClick = false;
                }
                else
                {
                    _isFinishClick = false;
                    AlertMsg alertMsg = new AlertMsg
                    {
                        Message = "盘点完成，库存无改变",
                        Type = MsgType.ERROR
                    };
                    _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                    Status = 0;
                    _isFinishClick = false;
                }


            }, () => Status == 3 && !_isFinishClick).ObservesProperty(() => Status);
        }

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

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

        public bool KeepAlive => false;

        public void FindDrawerCount()
        {
            int count = 0;
            if (ConfigurationManager.AppSettings["MultiBatch"].ToString().Equals("1"))
            {
                count = SqlSugarHelper.Db.Queryable<ChannelList>().Where(cs => cs.DrawerType != 3)
                .Where(cs => cs.MachineId.Equals(ConfigurationManager.AppSettings["machineId"] ?? "DM1")).GroupBy(cs => cs.DrawerNo).Select(cs => SqlFunc.AggregateCount(cs.DrawerNo)).Count();
            }
            else
            {
                count = SqlSugarHelper.Db.Queryable<ChannelStock>().Where(cs => cs.DrawerType != 3)
                .Where(cs => cs.MachineId.Equals(ConfigurationManager.AppSettings["machineId"] ?? "DM1")).GroupBy(cs => cs.DrawerNo).Select(cs => SqlFunc.AggregateCount(cs.DrawerNo)).Count();

            }
            Is8Drawer = count < 9;
            Is16Drawer = count >= 16;
            Is17Drawer = count > 16;
        }


        //这个方法用于拦截请求,continuationCallback(true)就是不拦截，continuationCallback(false)拦截本次操作
        public void ConfirmNavigationRequest(NavigationContext navigationContext, Action<bool> continuationCallback)
        {
            continuationCallback(true);
        }


        public void RequestData()
        {
            List<ChannelStock> queryData = SqlSugarHelper.Db.Queryable<ChannelStock>()
                .Includes(cs => cs.DrugInfo)
                .Where(cs => cs.DrawerNo == DrawerNo)
                .Where(cs => cs.DrugId != null)
                .Where(cs => cs.MachineId.Equals(ConfigurationManager.AppSettings["machineId"] ?? "DM1"))
                .OrderBy(cs => cs.ColNo)
                .ToList();
            ChannelStocks = queryData.Select(it => { it.CheckQuantity = it.Quantity; return it; }).ToList();
        }

        //接收导航传过来的参数  现在是在此处初始化了表格数据
        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            _eventAggregator.GetEvent<PortUtilEvent>().Subscribe(DoMyPrismEvent);
            FindDrawerCount();
            RequestData();
        }


        //每次导航的时候，该实列用不用重新创建，true是不重新创建,false是重新创建
        public bool IsNavigationTarget(NavigationContext navigationContext)
        {
            return true;
        }

        //这个方法用于拦截请求
        public void OnNavigatedFrom(NavigationContext navigationContext)
        { 
            // 取消消息订阅
            _eventAggregator.GetEvent<PortUtilEvent>().Unsubscribe(DoMyPrismEvent);
        }
    }
}