using Prism.Commands;
using Prism.Mvvm;
using Prism.Regions;
using Prism.Services.Dialogs;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DM_Weight.Models;
using DM_Weight.util;
using DM_Weight.msg;
using Prism.Events;
using System.Configuration;
using System.Reflection.PortableExecutable;
using DM_Weight.Report;

namespace DM_Weight.ViewModels
{
    public class ReturnEmptyWindowViewModel : BindableBase, IConfirmNavigationRequest, IRegionMemberLifetime
    {



        private List<ChannelStock>? _channelStocks;

        public List<ChannelStock>? Channels
        {
            get { return _channelStocks; }
            set { SetProperty(ref _channelStocks, value); }
        }

        private ChannelStock _channelStock;

        public ChannelStock Channel
        {
            get { return _channelStock; }
            set { SetProperty(ref _channelStock, value); }
        }


        private DateTime? _startDate = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day);

        public DateTime? StartDate
        {
            get => _startDate;
            set
            {
                if (value != null)
                {
                    SetProperty(ref _startDate, new DateTime(value?.Year ?? 0, value?.Month ?? 0, value?.Day ?? 0));
                }
                else
                {
                    SetProperty(ref _startDate, value);
                }
                RequestData();
            }
        }

        private DateTime? _endDate = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 23, 59, 59);

        public DateTime? EndDate
        {
            get => _endDate;
            set
            {
                if (value != null)
                {
                    TimeSpan ershisi = new TimeSpan(23, 59, 59);
                    SetProperty(ref _endDate, new DateTime(value?.Year ?? 0, value?.Month ?? 0, value?.Day ?? 0, 23, 59, 59));
                }
                else
                {
                    SetProperty(ref _endDate, value);
                }

                RequestData();
            }
        }

        IDialogService _dialogService;
        IEventAggregator _eventAggregator;
        public ReturnEmptyWindowViewModel(IDialogService dialogService, IEventAggregator eventAggregator)
        {
            _dialogService = dialogService;
            _eventAggregator = eventAggregator;
        }

        public DelegateCommand RowSelected
        {
            get => new DelegateCommand(() =>
            {

                if (Channel != null && Channel.DrugId == null)
                {
                    DialogParameters dialogParameters = new DialogParameters();
                    dialogParameters.Add("DrawerNo", Channel.DrawerNo);
                    DialogServiceExtensions.ShowDialogHost(_dialogService, "BindingChannelDialog", dialogParameters, DoDialogResult, "RootDialog");
                }
                else if (Channel != null && Channel.CanReturnQuantity > 0)
                {
                    Channels = Channels.Select(x =>
                    {
                        if (x.Id == Channel.Id)
                        {
                            x.IsSelected = !x.IsSelected;
                        }
                        return x;
                    }).ToList();
                    //DialogParameters dialogParameters = new DialogParameters();
                    //dialogParameters.Add("channel", Channel);
                    //DialogServiceExtensions.ShowDialogHost(_dialogService, "ReturnEmptyDialog", dialogParameters, DoDialogResult, "RootDialog");
                }
            });
        }


        //还空瓶
        public DelegateCommand ReturnEmptyCommand
        {
            get => new DelegateCommand(() =>
            {
                //List<ChannelStock> records = Channels.FindAll(it => it.IsSelected).ToList();
                //if (records.Count > 0)
                if (Channel != null && Channel.DrugId == null)
                {
                    DialogParameters dialogParameters = new DialogParameters();
                    dialogParameters.Add("DrawerNo", Channel.DrawerNo);
                    DialogServiceExtensions.ShowDialogHost(_dialogService, "BindingChannelDialog", dialogParameters, DoDialogResult, "RootDialog");

                }
                else if(Channel!=null&&Channel.CanReturnQuantity>0)
                {
                    
                    DialogParameters dialogParameters = new DialogParameters();
                    dialogParameters.Add("channel", Channel);
                    DialogServiceExtensions.ShowDialogHost(_dialogService, "ReturnEmptyDialog", dialogParameters, DoDialogResult, "RootDialog");
                }
                else
                {

                    AlertMsg alertMsg = new AlertMsg
                    {
                        Message = "请选择要还的空瓶",
                        Type = MsgType.ERROR,
                    };
                    _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                }
            });
        }


        private List<ChannelStock> csList = new List<ChannelStock>();

        //销毁
        public DelegateCommand DestoryCommand
        {
            get => new DelegateCommand(() =>
            {
                if (Channels != null && Channels.Count > 0)
                {
                    csList = Channels.FindAll(it => it.IsSelected && it.Quantity > 0).ToList();
                    if (csList != null && csList.Count > 0)
                    {
                        //RequestClose?.Invoke(new DialogResult(ButtonResult.Cancel));
                        //DialogParameters dialogParameters = new DialogParameters();
                        //List<string> msg = new List<string>();
                        //msg.Add("确认");
                        //msg.Add("确认要销毁吗？");
                        //dialogParameters.Add("msgInfo", msg);
                        //DialogServiceExtensions.ShowDialogHost(_dialogService, "ConfirmMessageDialog", dialogParameters, DestoryDialogResult, "RootDialog");
                        var f = SqlSugarHelper.Db.UseTran(() =>
                        {
                            for (int i = 0; i < csList.Count; i++)
                            {
                                ChannelStock channelStock = csList[i];
                                channelStock.Quantity = 0;
                                SqlSugarHelper.Db.Updateable(channelStock).ExecuteCommand();
                                MachineRecord machines = SqlSugarHelper.Db.Queryable<MachineRecord>()
                                 //.InnerJoin<ChannelStock>((mr, cs) => mr.DrugId == cs.DrugId)
                                 //.Where(mr => mr.DrugId.Contains(csList.Select(it => it.DrugId).ToList()) && mr.Type = 32)
                                 .Where(mr => mr.MachineId.Equals(ConfigurationManager.AppSettings["machineId"] ?? "DM1"))
                                 .Where(mr => mr.DrugId == channelStock.DrugId)
                                 .Where(mr => mr.Type == 32)
                                 .First();
                                SqlSugarHelper.Db.Updateable(machines).ReSetValue(mr =>
                                {
                                    mr.IsDestroy = 1;
                                    mr.TakeUser = HomeWindowViewModel.Operator?.Id.ToString();
                                    mr.DestoryReviewerUser = HomeWindowViewModel.Reviewer?.Id.ToString();
                                }).ExecuteCommand();
                            }
                            return true;
                        });


                        //csList.ForEach(it => it.Quantity = 0);
                        //var f = SqlSugarHelper.Db.UseTran(() =>
                        //{
                        //    SqlSugarHelper.Db.Updateable(csList).ExecuteCommand();
                        //    string[] str = new string[csList.Count];
                        //    str = csList.Select(t => t.DrugId).ToArray();
                        //    List<MachineRecord> machines = SqlSugarHelper.Db.Queryable<MachineRecord>()
                        //     //.InnerJoin<ChannelStock>((mr, cs) => mr.DrugId == cs.DrugId)
                        //     //.Where(mr => mr.DrugId.Contains(csList.Select(it => it.DrugId).ToList()) && mr.Type = 32)
                        //     .Where(mr => mr.MachineId.Equals(ConfigurationManager.AppSettings["machineId"] ?? "DM1"))
                        //     .In(mr => mr.DrugId, str)
                        //     .Where(mr => mr.Type == 32)
                        //     .ToList();
                        //    SqlSugarHelper.Db.Updateable(machines).ReSetValue(mr =>
                        //    {
                        //        mr.IsDestroy = 1;
                        //    }).ExecuteCommand();
                        //    return true;
                        //});
                        if (f.Data)
                        {

                            RequestData();
                            AlertMsg alertMsg = new AlertMsg
                            {
                                Message = "销毁完成",
                                Type = MsgType.SUCCESS,
                            };
                            _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                        }
                        if (!f.IsSuccess)
                        {
                            AlertMsg alertMsg = new AlertMsg
                            {
                                Message = "销毁失败！",
                                Type = MsgType.ERROR,
                            };
                            _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                        }
                    }
                    else
                    {
                        AlertMsg alertMsg = new AlertMsg
                        {
                            Message = "未勾选要销毁的数据或勾选的数据库存为0",
                            Type = MsgType.ERROR,
                        };
                        _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                    }
                }
                else
                {
                    AlertMsg alertMsg = new AlertMsg
                    {
                        Message = "没有要操作销毁的数据",
                        Type = MsgType.ERROR,
                    };
                    _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                }
            });
        }

        //空瓶销毁（根据还的空瓶）
        public DelegateCommand DestoryEmptyCommand { get => new DelegateCommand(DestoryEmptyAction); }
        private void DestoryEmptyAction()
        {
            //List<ChannelStock> records = Channels.FindAll(it => it.IsSelected).ToList();
            //if (records.Count > 0)
            if (Channel != null && Channel.DrugId != null&&Channel.Quantity>0)
            {

                DialogParameters dialogParameters = new DialogParameters();
                dialogParameters.Add("channel", Channel);
                DialogServiceExtensions.ShowDialogHost(_dialogService, "DestoryEmptyDialog", dialogParameters, DoDialogResult, "RootDialog");
            }
            else
            {
                AlertMsg alertMsg = new AlertMsg
                {
                    Message = "请选择有库存的数据",
                    Type = MsgType.ERROR,
                };
                _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
            }

        }

        private void DoDialogResult(IDialogResult dialogResult)
        {
            // 委托   被动执行     被子窗口执行
            // dialogResult  第一方面可以拿到任意参数   第二方面   可判断关闭状态
            RequestData();
            //MessageBox.Show("返回值：" + dialogResult.Result.ToString());
        }

        //导出回收销毁记录
        public DelegateCommand DownloadRecordCommand { get => new DelegateCommand(() => {

            GridReportUtil.PrintEmptyDestoryReport(StartDate, EndDate);

        }); } 

        public bool KeepAlive => false;


        public DelegateCommand Query
        {
            get => new DelegateCommand(() =>
            {
                RequestData();
            });
        }

        //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);
        }


        //接收导航传过来的参数
        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            //查询表格数据
            RequestData();
        }

        void RequestData()
        {

            Channels = SqlSugarHelper.Db.Queryable<ChannelStock>()
                .LeftJoin<DrugInfo>((cs, di) => cs.DrugId == di.DrugId.ToString())
                .Where((cs) => cs.DrawerType != 1).Where(cs => cs.MachineId == ConfigurationManager.AppSettings["machineId"])
                .Select((cs, di) => new ChannelStock
                {
                    CanReturnQuantity = SqlFunc.Subqueryable<MachineRecord>().Where(mr => mr.DrugId == cs.DrugId && mr.MachineId == ConfigurationManager.AppSettings["machineId"]).Where(mr => mr.Type == 2).Where(mr => mr.Status != 2).Select(mr => SqlFunc.IsNull(SqlFunc.AggregateSumNoNull(mr.Quantity - mr.ReturnQuantity1 - mr.ReturnQuantity2), 0)),
                    DrugInfo = new DrugInfo
                    {
                        DrugId = di.DrugId,
                        DrugName = di.DrugName,
                        DrugSpec = di.DrugSpec,
                        Manufactory = di.Manufactory,
                        PackUnit = di.PackUnit,
                    },
                    Quantity = cs.Quantity
                }, true)
                .OrderBy(cs => cs.DrawerNo)
                .OrderBy(cs => cs.ColNo)
                .ToList()
                ;
            _ = Channels.Count;
        }

        //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)
        {

        }
    }
}