using iWareCommon.Common.Service;
using iWareCommon.Utils;
using iWareDataCore.BASE.Dao;
using iWareDataCore.BASE.Entity;
using iWareDataCore.ORM;
using iWareDataCore.Properties;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace iWareDataCore.BASE.Service
{
  public  class WebOrderDetailService : CommonService<WebOrderDetailViewEntity, WebOrderDetailView, DbModelCore>
    {
        private static object Lock = new object();

        private WebOrderDetailService() : base(WebOrderDetailDao.GetInstance()) { }

        private static WebOrderDetailService Instance = null;

        /// <summary>
        /// 获取单例的方法
        /// </summary>
        /// <returns>用户服务的单例实体</returns>
        public static WebOrderDetailService GetInstance()
        {

            if (Instance == null)
            {
                lock (Lock)
                {
                    if (Instance == null)
                    {
                        Instance = new WebOrderDetailService();
                    }
                }
            }
            return Instance;
        }

        public int DeleteDetail(List<int> ids, out string msg)
        {
            msg = "";
            using (var dbModel = new DbModelCore())
            {
                int fristIndex = 0;
                foreach (var id in ids)
                {
                    try
                    {
                        var detail = dbModel.WebOrderDetail.FirstOrDefault(x => x.id == id);
                        if (detail != null)
                        {
                            if (fristIndex==0)
                            {
                                var mainOrder = dbModel.WebOrder.FirstOrDefault(x => x.id == detail.weborderid);
                                if (mainOrder !=null && mainOrder.statusflag==1)
                                {
                                    msg = "此单据已下发，不能删除明细";
                                    break;
                                }
                            }
                            dbModel.WebOrderDetail.Remove(detail);
                            fristIndex++;
                        }   
                    }
                    catch (Exception){}
                }
                if (string.IsNullOrEmpty(msg))
                {
                    dbModel.SaveChanges();
                    return ids.Count;
                }
                else
                    return 0;
            }
        }

        public List<WebOrderDetailView> GetWebOrderDetail(int webOrderId,out string msg)
        {
            msg = "";
            using (var dbModel = new DbModelCore())
            {
                List<WebOrderDetailView> detail = new List<WebOrderDetailView>();
                try
                {
                    return dbModel.WebOrderDetailView.Where(x => x.weborderid == webOrderId).ToList();
                }
                catch (Exception ex)
                {
                    msg = ex.Message;
                    return detail;
                }
            }
        }
    }
}