добавлены файлы в проект ..Contracts и начата логика магазина

SushiBarBusinessLogic/ShopLogic.cs

@@ -0,0 +1,70 @@
+using Microsoft.Extensions.Logging;
+using SushiBarContracts.BindingModel;
+using SushiBarContracts.BusinessLogicsContracts;
+using SushiBarContracts.SearchModel;
+using SushiBarContracts.StoragesContracts;
+using SushiBarContracts.ViewModels;
+using SushiBarDataModels;
+
+namespace SushiBarBusinessLogic
+{
+    public class ShopLogic : IShopLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IShopStorage _shopStorage;
+
+        public ShopLogic(ILogger logger, IShopStorage shopStorage)
+        {
+            _logger = logger;
+            _shopStorage = shopStorage;
+        }
+        
+        public List<ShopViewModel>? ReadList(ShopSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{ Id}, ShopName:{ ShopName}", model?.Id, model?.Name);
+            var list = model == null ? _shopStorage.GetFullList() : _shopStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public ShopViewModel? ReadElement(ShopSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadList. Id:{ Id}, ShopName:{ ShopName}", model.Id, model.Name);
+            var element = _shopStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(ShopBindingModel model)
+        {
+            CheckModel(model);
+        }
+
+        private bool CheckModel(ShopBindingModel model, bool withParams = true)
+        {
+            if(model == null) 
+                throw new ArgumentNullException($"{nameof(model)} is null");
+            if (!withParams) return false;
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentNullException("Нет такого магазина", nameof(model.Name));
+            }
+            _logger.LogInformation("Shop. ShopName:{ShopName}.Address:{ Address}. Id:{ Id}", 
+                model.ShopName, model.Address, model.Id);
+        }
+    }
+}

SushiBarContracts/BindingModel/ShopBindingModel.cs

@@ -0,0 +1,14 @@
+using SushiBarDataModels;
+using SushiBarDataModels.Models;
+
+namespace SushiBarContracts.BindingModel
+{
+    public class ShopBindingModel : IShopModel
+    {
+        public int Id { get; set; } 
+        public string Name {  get; set; }
+        public string Address { get; set; }
+        public DateTime DateOpening { get; set; } = DateTime.Now;
+        public Dictionary<int, (ISushiModel, int)> ShopSushis { get; set; } = new();
+    }
+}

SushiBarContracts/BusinessLogicsContracts/IShopLogic.cs

@@ -0,0 +1,17 @@
+using SushiBarContracts.BindingModel;
+using SushiBarContracts.SearchModel;
+using SushiBarContracts.ViewModels;
+using SushiBarDataModels.Models;
+
+namespace SushiBarContracts.BusinessLogicsContracts
+{
+    public interface IShopLogic
+    {
+        List<ShopViewModel>? ReadList(ShopSearchModel? model);
+        ShopViewModel? ReadElement(ShopSearchModel model);
+        bool Create(ShopBindingModel model);
+        bool Update(ShopBindingModel model);
+        bool Delete(ShopBindingModel model);
+        bool AddSushiInShop(ShopSearchModel model, ISushiModel sushi, int count);
+    }
+}

SushiBarContracts/SearchModel/ShopSearchModel.cs

@@ -0,0 +1,8 @@
+namespace SushiBarContracts.SearchModel
+{
+    public class ShopSearchModel
+    {
+        public int? Id { get; set; }
+        public string? Name { get; set; }
+    }
+}

SushiBarContracts/StoragesContracts/IShopStorage.cs

@@ -0,0 +1,16 @@
+using SushiBarContracts.BindingModel;
+using SushiBarContracts.SearchModel;
+using SushiBarContracts.ViewModels;
+
+namespace SushiBarContracts.StoragesContracts
+{
+    public interface IShopStorage 
+    {
+        List<ShopViewModel> GetFullList();
+        List<ShopViewModel> GetFilteredList(ShopSearchModel model);
+        ShopViewModel? GetElement(ShopSearchModel model);
+        ShopViewModel? Insert(ShopBindingModel model);
+        ShopViewModel? Update(ShopBindingModel model);
+        ShopViewModel? Delete(ShopBindingModel model);
+    }
+}

SushiBarContracts/ViewModels/ShopViewModel.cs

@@ -0,0 +1,21 @@
+using SushiBarDataModels;
+using SushiBarDataModels.Models;
+using System.ComponentModel;
+
+namespace SushiBarContracts.ViewModels
+{
+    public class ShopViewModel : IShopModel
+    {
+        public int Id { get; set; }
+
+        [DisplayName("Название магазина")]
+        public string Name { get; set; } = string.Empty;
+
+        [DisplayName("Адрес")]
+        public string Address { get; set; } = string.Empty;
+
+        [DisplayName("Дата открытия")]
+        public DateTime DateOpening { get; set; } = DateTime.Now;
+        public Dictionary<int, (ISushiModel, int)> ShopSushis { get; set;  } = new();
+    }
+}

SushiBarDataModels/IShopModel.cs

@@ -4,9 +4,9 @@ namespace SushiBarDataModels
 {
     public interface IShopModel : IId
     {
-        string Name { get; set; }
-        string Address { get; set; }
-        DateTime DateOpening { get; set; }
-        Dictionary<int, (ISushiModel, int)> ShopSushis{ get; set; }
+        string Name { get; }
+        string Address { get; }
+        DateTime DateOpening { get; }
+        Dictionary<int, (ISushiModel, int)> ShopSushis{ get; }
     }
 }

SushiBarDataModels/ShopBindingModel.cs

@@ -0,0 +1,6 @@
+namespace SushiBarDataModels
+{
+    public class ShopBindingModel : IShopModel
+    {
+    }
+}