using BWP.B3_YunKen.BO;
using BWP.B3Sale.BO;
using Forks.EnterpriseServices.BusinessInterfaces;
using Forks.EnterpriseServices.DomainObjects2;
using Forks.EnterpriseServices.DomainObjects2.DQuery;
using Forks.EnterpriseServices.SqlDoms;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using TSingSoft.WebPluginFramework.BIPlugins.BLEvents;
using TSingSoft.WebPluginFramework;

namespace BWP.B3_YunKen.BLActions
{
    public class SaleForecastBLIsSetWrappageActions : IBLMethodAction
    {

        //A:根据存货查找【包装物设置】中对应的存货设置
        //B:若存货没有在【包装物设置】界面设置包装物，则无法保存。
        public string Description
        {
            get { return "销售预报设置包装物"; }
        }

        public void Execute(IDmoContext context, object dmo, object parameter)
        {
            var bill = dmo as SaleForecast;
            if (bill == null)
                return;
            foreach (var detail in bill.Details)
            {
                var list = GetGoods_PackageCount(detail.SaleGoods_ID, bill.AccountingUnit_ID);
                if (list.Count <= 0)
                {
                    string msg = "存货【" + detail.Goods_Name + "】没有在【产品包装物设置】界面设置包装物";
                    throw new Exception(msg);
                }
            }
        }

        //根据存货查找【包装物设置】中对应的存货设置
        private List<long?> GetGoods_PackageCount(long? goodID, long? accID)
        {
            var gpackage = new JoinAlias(typeof(Goods_Package));
            var package = new JoinAlias(typeof(Wrappage));

            var query = new DQueryDom(gpackage);

            query.From.AddJoin(JoinType.Left, new DQDmoSource(package), DQCondition.EQ(package, "ID", gpackage, "Package_ID"));

            query.Columns.Add(DQSelectColumn.Field("Package_ID", gpackage));
            //query.Columns.Add(DQSelectColumn.Create(DQExpression.Count(DQExpression.Field(gpackage, "Package_ID")), "Count"));
            query.GroupBy.Expressions.Add(DQExpression.Field(gpackage, "Package_ID"));

            query.Where.Conditions.Add(DQCondition.EQ(gpackage, "Goods_ID", goodID));
            query.Where.Conditions.Add(DQCondition.EQ(package, "AccountingUnit_ID", accID));


            return query.EExecuteList<long?>();
        }


        public IList<string> Features
        {
            get { return new List<string>(); }
        }

        public string Name
        {
            get { return "B3_YunKen.销售预报设置包装物"; }
        }

    }
}