using YLErp.DBModels.Consts;

namespace YLErp.Modules.TradeModule
{
    /// <summary>
    /// 交易文档数据操作服务
    /// </summary>
    public class TradeDocumentDataService : YLBaseService
    {
        public TradeDocumentDataService(YLBaseService baseService) : base(baseService)
        {

        }

        public TradeDocumentDataService(OptUserInfo userInfo) : base(userInfo)
        {
        }

        /// <summary>
        /// 如果状态是修改待确认状态，要删除原来已经生成的确认书
        /// </summary>
        public void DeleteBooksAfterEditTrade(trade trade)
        {
            //如果状态是修改待确认状态，要删除原来已经生成的确认书
            if (trade.TradeStatus == ConsTrade.修改待确认)
            {
                InnerDeleteConfirmBook(trade.id);
            }
        }

        /// <summary>
        /// 删除确认书
        /// </summary>
        public int DeleteConfirmBook(int tradeId, string contractType = ContractTypeEnum.Trade)
        {
            return InnerDeleteConfirmBook(tradeId, contractType);
        }

        public int InnerDeleteConfirmBook(int tradeId, params string[] contractTypes)
        {
            var doc = from contractRelation in DbContext.trade_contract_r
                      where contractRelation.TradeId == tradeId && contractRelation.IsValid
                      select contractRelation;

            if (contractTypes.Length > 0)
            {
                doc = doc.Where(O => contractTypes.Contains(O.Type));
            }

            if (!doc.Any())
            {
                return 0;
            }

            //同ContractCode的都要改变
            var docArr = doc.ToArray();
            var contractCode = docArr.FirstOrDefault().ContractCode;
            var types = docArr.Select(o => o.Type).ToArray();
            var tcrs = from tcr in DbContext.trade_contract_r
                       where tcr.ContractCode == contractCode && types.Contains(tcr.Type) && tcr.IsValid
                       select tcr;

            tcrs.ToList().ForEach(O => O.IsValid = false);           

            return DbContext.SaveChanges();
        }
    }
}