Подменил ShopStorage в FileImplements

SecuritySystem/SecuritySystemFileImplement/Implements/ShopStorage.cs

@@ -75,5 +75,58 @@ namespace SecuritySystemFileImplement.Implements
             source.SaveShops();
             return shop.GetViewModel;
         }
+
+        public bool SellSecures(ISecureModel secureModel, int securesCount)
+        {
+            var car = source.Secures.FirstOrDefault(x => x.Id == secureModel.Id);
+
+            if (car == null)
+            {
+                return false;
+            }
+
+
+            var shopSecures = source.Shops.SelectMany(shop => shop.ShopSecures.Where(c => c.Value.Item1.Id == car.Id));
+
+            int countStore = 0;
+
+            foreach (var it in shopSecures)
+                countStore += it.Value.Item2;
+
+            if (securesCount > countStore)
+                return false;
+
+            foreach (var shop in source.Shops)
+            {
+                var cars = shop.ShopSecures;
+
+                foreach (var c in cars.Where(x => x.Value.Item1.Id == car.Id))
+                {
+                    int min = Math.Min(c.Value.Item2, securesCount);
+                    cars[c.Value.Item1.Id] = (c.Value.Item1, c.Value.Item2 - min);
+                    securesCount -= min;
+
+                    if (securesCount <= 0)
+                        break;
+                }
+
+                shop.Update(new ShopBindingModel
+                {
+                    Id = shop.Id,
+                    Name = shop.Name,
+                    Address = shop.Address,
+                    MaxSecuresCount = shop.MaxSecuresCount,
+                    OpeningDate = shop.OpeningDate,
+                    ShopSecures = cars
+                });
+
+                source.SaveShops();
+
+                if (securesCount <= 0)
+                    return true;
+            }
+
+            return true;
+        }
     }
 }