using DM_Weight.Models;
using DM_Weight.msg;
using DM_Weight.select;
using DM_Weight.util;
using log4net;
using Prism.Commands;
using Prism.Events;
using Prism.Mvvm;
using Prism.Regions;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Configuration;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Data;
using System.Windows.Markup;

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

        private readonly ILog logger = LogManager.GetLogger(typeof(InvoiceInWindowViewModel));
        private int _pageNum = 1;
        public int PageNum
        {
            get => _pageNum;
            set
            {
                SetProperty(ref _pageNum, value);
                RequestData();
            }
        }

        private int _pageCount = 1;
        public int PageCount
        {
            get => _pageCount;
            set
            {
                SetProperty(ref _pageCount, value);
            }
        }

        private int _pageSize = 8;
        public int PageSize
        {
            get => _pageSize;
            set
            {
                SetProperty(ref _pageSize, value);
            }
        }

        private int _totalCount = 0;
        public int TotalCount
        {
            get => _totalCount;
            set
            {
                SetProperty(ref _totalCount, value);
            }
        }


        IDialogService _dialogService;


        IEventAggregator _eventAggregator;

        private DelegateCommand _rowSelected;

        public DelegateCommand RowSelected => _rowSelected ??= new DelegateCommand(GetChannelByInvoice);

        public InvoiceInWindowViewModel(IDialogService DialogService, IEventAggregator eventAggregator)
        {
            _dialogService = DialogService;
            _eventAggregator = eventAggregator;
        }

        public static List<OrderTakeSelect> StaticOrderTakeSelects = new()
        {
            new OrderTakeSelect
            {
                Code = "invoiceNo",
                Name = "凭证单号"
            }
        };

        private List<OrderTakeSelect> _orderTakeSelects = StaticOrderTakeSelects;

        public List<OrderTakeSelect> OrderTakeSelects
        {
            get { return _orderTakeSelects; }
            set
            {
                SetProperty(ref _orderTakeSelects, value);
            }
        }

        private OrderTakeSelect _selectedItem = StaticOrderTakeSelects[0];
        /// <summary>
        /// 查询条件 查询字段
        /// </summary>
        public OrderTakeSelect SelectedItem
        {
            get { return _selectedItem; }
            set
            {
                SetProperty(ref _selectedItem, value);
                RequestData();
            }
        }

        private Invoice? _selectedInvoice;

        public Invoice? SelectedInvoice
        {
            get { return _selectedInvoice; }
            set
            {
                SetProperty(ref _selectedInvoice, value);

                //OpenOrderDialog();
            }
        }


        private string _orderDate = DateTime.Now.ToString("yyyy-MM-dd");
        /// <summary>
        /// 查询条件  处方日期
        /// </summary>
        public string OrderDate
        {
            get { return _orderDate; }
            set
            {
                if (!String.IsNullOrEmpty(value))
                {
                    SetProperty(ref _orderDate, DateTime.Parse(value).ToString("yyyy-MM-dd"));
                }
                else
                {
                    SetProperty(ref _orderDate, value);
                }

                RequestData();
            }
        }

        private string? _searchValue;

        /// <summary>
        /// 查询条件 查询字段值
        /// </summary>
        public string? SearchValue
        {
            get { return _searchValue; }
            set
            {
                SetProperty(ref _searchValue, value);
                RequestData();
            }
        }

        private List<Invoice> _invoices = new();

        public List<Invoice> Invoices { get { return _invoices; } set { SetProperty(ref _invoices, value); } }


        private List<InOutInvoice> _inOutInvoices = new();

        public List<InOutInvoice> InOutInvoices { get { return _inOutInvoices; } set { SetProperty(ref _inOutInvoices, value); } }

        public bool KeepAlive => false;

        private List<ChannelStock> _channelStocks = new();

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



        private List<ChannelStock> _addChannels = new();

        public List<ChannelStock> AddChannels { get { return _addChannels; } set { SetProperty(ref _addChannels, value); } }

        public void GetChannelByInvoice()
        {
            ChannelStocks.Clear();
            InOutInvoices.Clear();
            List<ChannelStock> iChannelStockList = new List<ChannelStock>();
            if (SelectedInvoice != null)
            {
                var invoices = SqlSugarHelper.Db.Queryable<InOutInvoice>()
                                .Includes<DrugInfo>(i => i.DrugInfo)
                                .InnerJoin(SqlSugarHelper.Db.Queryable<ChannelStock>().Where(cs => cs.DrawerType == 1).Where(cs => cs.MachineId.Equals(ConfigurationManager.AppSettings["machineId"] ?? "DM1")).GroupBy(cs => cs.DrugId), (i, t) => i.DrugId == t.DrugId)
                                .Where(i => i.InvoiceNo == SelectedInvoice.InvoiceNo)
                                .ToList();
                foreach (var invoice in invoices)
                {
                    List<ChannelStock> q = SqlSugarHelper.Db.Queryable<ChannelStock>()
                    .Includes<DrugInfo>(cs => cs.DrugInfo)
                    .WhereIF(!string.IsNullOrEmpty(invoice.DrugEffDate), cs => cs.EffDate.Equals(invoice.DrugEffDate))
                    .WhereIF(!string.IsNullOrEmpty(invoice.DrugManuNo), cs => cs.ManuNo.Equals(invoice.DrugManuNo))
                    .Where(cs => cs.DrugId == invoice.DrugId)
                    .Where(cs => cs.DrawerType == 1)
                    .Where(cs => cs.MachineId.Equals(ConfigurationManager.AppSettings["machineId"] ?? "DM1"))
                    .OrderBy(cs => cs.DrugId)
                    .OrderBy(cs => cs.DrawerNo)
                    .OrderBy(cs => cs.ColNo)
                    .ToList();


                    

                    for (int j = 0; j < q.Count;j++)
                    {
                        ChannelStock item = q[j];
                        if(j == 0)
                        {
                            item.AddQuantity = invoice.quantity;
                        }
                        item.Invoice = invoice;
                        iChannelStockList.Add(item);
                    }
                    InOutInvoice copy = TransExpV2<InOutInvoice, InOutInvoice>.Trans(invoice);
                    InOutInvoices.Add(copy);
                }
            }
            ICollectionView vw = CollectionViewSource.GetDefaultView(iChannelStockList);
            vw.GroupDescriptions.Add(new PropertyGroupDescription("Invoice"));
            ChannelStocks = iChannelStockList;

        }

        public DelegateCommand OpenInvoiceAdd
        {
            get => new DelegateCommand(() =>
            {
                bool flag = true;
                for (int i = 0; i < InOutInvoices.Count; i++)
                {
                    InOutInvoice invoices = InOutInvoices[i];
                    if (invoices.quantity != ChannelStocks.FindAll(it => it.DrugId == invoices.DrugId).Sum(it => it.AddQuantity))
                    {
                        flag = false;
                        break;
                    }
                }
                if (flag)
                {
                    AddChannels = ChannelStocks.FindAll(it => it.AddQuantity != 0);
                    AddChannels.Sort((a, b) =>
                    {
                        if ((a.DrawerNo - b.DrawerNo) == 0)
                        {
                            return a.ColNo - b.ColNo;
                        }
                        return a.DrawerNo - b.DrawerNo;
                    });
                    OpenOrderDialog();
                } else
                {
                    AlertMsg alertMsg = new AlertMsg
                    {
                        Message = "库位添加数量小于应添加数量",
                        Type = MsgType.ERROR,
                    };
                    _eventAggregator.GetEvent<SnackbarEvent>().Publish(alertMsg);
                }
            },() => SelectedInvoice !=null).ObservesProperty(() => SelectedInvoice);
        }


        public async void OpenOrderDialog()
        {
            if (SelectedInvoice != null && SelectedInvoice.Status == 0)
            {
                // 此处延时1毫秒，等待页面渲染
                await Task.Delay(TimeSpan.FromMilliseconds(1));
                DialogParameters dialogParameters = new DialogParameters();
                dialogParameters.Add("invoice", SelectedInvoice);
                dialogParameters.Add("ChannelStocks", AddChannels);
                DialogServiceExtensions.ShowDialogHost(_dialogService, "InvoiceAddDialog", dialogParameters, DoDialogResult, "RootDialog");
            }
        }

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

        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
            //if (dialogResult.Result == ButtonResult.OK)
            {
                SelectedInvoice = null;
                RequestData();
            }
            //MessageBox.Show("返回值：" + dialogResult.Result.ToString());
        }


        //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()
        {
            Invoices.Clear();
            int totalCount = 0;

            var sb = new StringBuilder();
            sb.Append("select i.invoice_no as InvoiceNo, i.invoice_date as InvoiceDate, COUNT(i.id) as `Count`, SUM(i.quantity) as quantity, p1.pharmacy_name as PharmacyName1, p2.pharmacy_name as PharmacyName2 from in_out_invoice i");
            sb.Append(" inner join ( select c.drug_id as drug_id from channel_stock c where c.machine_id = '" + (ConfigurationManager.AppSettings["machineId"] ?? "DM1") + "' group by c.drug_id ) di on di.drug_id = i.drug_id");
            sb.Append(" left join pharmacy_info p1 on p1.pharmacy_id = i.in_pharmacy_id");
            sb.Append(" left join pharmacy_info p2 on p2.pharmacy_id = i.out_pharmacy_id");
            sb.Append(" where i.status=@Status ");
            sb.Append(" and i.type!=@type ");
            sb.Append(" and i.cancel_flag=@CancelFlag ");
            if (OrderDate != null)
            {
                sb.Append(" and i.invoice_date = @CreateTime ");
            }
            if (!String.IsNullOrEmpty(SearchValue))
            {
                sb.Append(" and i.invoice_no = @InvoiceNo ");
            }
            if (!String.IsNullOrEmpty(ConfigurationManager.AppSettings["storage"]))
            {
                sb.Append(" and i.in_pharmacy_id = @OutPharmacyId ");
            }
            sb.Append(" group by i.invoice_no");
            sb.Append(" order by i.invoice_date ");
            Invoices = SqlSugarHelper.Db.SqlQueryable<dynamic>(sb.ToString())
                .AddParameters(new
                {
                    Status = 0,
                    type = 2,
                    CancelFlag = 0,
                    CreateTime = OrderDate,
                    InvoiceNo = SearchValue,
                    OutPharmacyId = ConfigurationManager.AppSettings["storage"]
                })
                .Select(it => new Invoice())
                .Select("*")
                .ToPageList(PageNum, PageSize, ref totalCount);

            TotalCount = totalCount;
            PageCount = (int)Math.Ceiling((double)TotalCount / PageSize);
        }


        //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)
        {
            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)
        {

        }
    }
}