JewelryStoreContracts/BindingModels/StoreBindingModel.cs

@@ -17,5 +17,7 @@ namespace JewelryStoreContracts.BindingModels
         public Dictionary<int, (IJewelModel, int)> Jewels { get; set; } = new();
 
         public int Id { get; set; }
+
+        public int PackageMaxCount { get; set; }
     }
 }

JewelryStoreContracts/BusinessLogicsContracts/IStoreLogic.cs

@@ -18,5 +18,7 @@ namespace JewelryStoreContracts.BusinessLogicsContracts
         bool Update(StoreBindingModel model);
         bool Delete(StoreBindingModel model);
         bool AddJewel(StoreSearchModel model, IJewelModel jewel, int quantity);
+        bool AddJewel(IJewelModel jewel, int quantity);
+        bool SellJewel(IJewelModel jewel, int quantity);
     }
 }

JewelryStoreContracts/StoragesContracts/IStoreStorage.cs

@@ -1,6 +1,7 @@
 using JewelryStoreContracts.BindingModels;
 using JewelryStoreContracts.SearchModels;
 using JewelryStoreContracts.ViewModels;
+using JewelryStoreDataModels.Models;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -17,5 +18,6 @@ namespace JewelryStoreContracts.StoragesContracts
         StoreViewModel? Insert(StoreBindingModel model);
         StoreViewModel? Update(StoreBindingModel model);
         StoreViewModel? Delete(StoreBindingModel model);
+        bool SellJewel(IJewelModel model, int quantity);
     }
 }

JewelryStoreContracts/ViewModels/StoreViewModel.cs

@@ -19,5 +19,8 @@ namespace JewelryStoreContracts.ViewModels
         public string StoreAdress { get; set; } = string.Empty;
         [DisplayName("Дата открытия")]
         public DateTime OpeningDate { get; set; } = DateTime.Now;
+
+        [DisplayName("Вместимость магазина")]
+        public int PackageMaxCount { get; set; }
     }
 }