//using Newtonsoft.Json;
//using Amazon.DynamoDBv2.DocumentModel;
//using System;
//using System.Collections.Generic;
//using System.Linq;
//using System.Text;
//using System.Threading.Tasks;
//using Google.Protobuf.WellKnownTypes;

//namespace ServerCommon.DB
//{
//    public class ShopInfo
//    {
//        public List<ShopItemInfo> ShopItemList = new();
//        public Timestamp EndTime = Timestamp.FromDateTime(DateTime.UtcNow);
//    }

//    public class MyShopEntityAttr
//    {
//        public Dictionary<int, ShopInfo> shopInfo = new();
//    }
//    public class MyShopEntity
//    {
//        public string PK_Guid { get; private set; } = string.Empty;
//        public string SK_Empty { get; private set; } = string.Empty;

//        public MyShopEntityAttr Attr { get; private set; } = new();

//        public MyShopEntity()
//        {

//        }
//        public MyShopEntity(Document document)
//        {
//            ReadFrom(document);
//        }

//        public void ReadFrom(Document document)
//        {
//            PK_Guid = document["PK"].AsString().Replace(MainDB.GetPKPrefix(EEntityType.MyShop), "");
//            SK_Empty = document["SK"].AsString().Replace(MainDB.GetSKPrefix(EEntityType.MyShop), "");

//            MyShopEntityAttr? attr = JsonConvert.DeserializeObject<MyShopEntityAttr>(document["Attr"].AsString());
//            if (attr == null)
//                throw new Exception("Attr DeserializeObject error");

//            Attr = attr;
//        }
//        public Document DocumentForUpdate()
//        {
//            var document = new Document();
//            document["PK"] = MainDB.MakePK(EEntityType.MyShop, PK_Guid);
//            document["SK"] = MainDB.MakeSK(EEntityType.MyShop, SK_Empty);
//            document["Attr"] = JsonConvert.SerializeObject(Attr);
//            return document;
//        }
//    }
//}