SushiBarBusinessLogic/MessageInfoLogic.cs

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+using Microsoft.Extensions.Logging;
+using SushiBarContracts.BindingModel;
+using SushiBarContracts.BusinessLogicsContracts;
+using SushiBarContracts.SearchModel;
+using SushiBarContracts.StoragesContracts;
+using SushiBarContracts.ViewModels;
+
+namespace SushiBarBusinessLogic
+{
+    public class MessageInfoLogic : IMessageInfoLogic
+    {
+
+        private readonly ILogger logger;
+        private readonly IMessageInfoStorage messageStorage;
+
+        public MessageInfoLogic(ILogger<MessageInfoLogic> logger, IMessageInfoStorage messageStorage)
+        {
+            this.logger = logger;
+            this.messageStorage = messageStorage;
+        }
+        public bool Create(MessageInfoBindingModel model)
+        {
+            if(messageStorage.Insert(model) == null)
+            {
+                logger.LogWarning("Insert message operation failed");
+            }
+            return true;
+        }
+
+        public List<MessageInfoViewModel>? ReadList(MessageInfoSearchModel? model)
+        {
+            var list = model == null ? messageStorage.GetFullList() : messageStorage.GetFilteredList(model);
+            if(list == null)
+            {
+                logger.LogWarning("ReadList had returned a null list");
+                return null;
+            }
+            logger.LogInformation($"ReadList. Count of elements: {list.Count}");
+            return list;
+        }
+    }
+}