8 лаба

ComputersShop/ComputersShopBusinessLogic/BusinessLogic/BackUpLogic.cs

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+using ComputersShopDataModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.IO.Compression;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Runtime.Serialization.Json;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.BusinessLogic
+{
+    public class BackUpLogic : IBackUpLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IBackUpInfo _backUpInfo;
+
+        public BackUpLogic(ILogger<BackUpLogic> logger, IBackUpInfo backUpInfo)
+        {
+            _logger = logger;
+            _backUpInfo = backUpInfo;
+        }
+
+        public void CreateBackUp(BackUpSaveBinidngModel model)
+        {
+            if (_backUpInfo == null)
+            {
+                return;
+            }
+            try
+            {
+                _logger.LogDebug("Clear folder");
+                // зачистка папки и удаление старого архива
+                var dirInfo = new DirectoryInfo(model.FolderName);
+                if (dirInfo.Exists)
+                {
+                    foreach (var file in dirInfo.GetFiles())
+                    {
+                        file.Delete();
+                    }
+                }
+                _logger.LogDebug("Delete archive");
+                string fileName = $"{model.FolderName}.zip";
+                if (File.Exists(fileName))
+                {
+                    File.Delete(fileName);
+                }
+                // берем метод для сохранения
+                _logger.LogDebug("Get assembly");
+                var typeIId = typeof(IId);
+                var assembly = typeIId.Assembly;
+                if (assembly == null)
+                {
+                    throw new ArgumentNullException("Сборка не найдена", nameof(assembly));
+                }
+                var types = assembly.GetTypes();
+                var method = GetType().GetMethod("SaveToFile", BindingFlags.NonPublic | BindingFlags.Instance);
+                _logger.LogDebug("Find {count} types", types.Length);
+                foreach (var type in types)
+                {
+                    if (type.IsInterface && type.GetInterface(typeIId.Name) != null)
+                    {
+                        var modelType = _backUpInfo.GetTypeByModelInterface(type.Name);
+                        if (modelType == null)
+                        {
+                            throw new InvalidOperationException($"Не найден класс-модель для {type.Name}");
+                        }
+                        _logger.LogDebug("Call SaveToFile method for {name} type", type.Name);
+                        // вызываем метод на выполнение
+                        method?.MakeGenericMethod(modelType).Invoke(this, new object[] { model.FolderName });
+                    }
+                }
+                _logger.LogDebug("Create zip and remove folder");
+                // архивируем
+                ZipFile.CreateFromDirectory(model.FolderName, fileName);
+                // удаляем папку
+                dirInfo.Delete(true);
+            }
+            catch (Exception)
+            {
+                throw;
+            }
+        }
+
+        private void SaveToFile<T>(string folderName) where T : class, new()
+        {
+            var records = _backUpInfo.GetList<T>();
+            if (records == null)
+            {
+                _logger.LogWarning("{type} type get null list", typeof(T).Name);
+                return;
+            }
+            var jsonFormatter = new DataContractJsonSerializer(typeof(List<T>));
+            using var fs = new FileStream(string.Format("{0}/{1}.json", folderName, typeof(T).Name), FileMode.OpenOrCreate);
+            jsonFormatter.WriteObject(fs, records);
+        }
+    }
+}

ComputersShop/ComputersShopContracts/Attributes/ColumnAttribute.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.Attributes
+{
+    [AttributeUsage(AttributeTargets.Property)]
+    public class ColumnAttribute : Attribute
+    {
+        public ColumnAttribute(string title = "", bool visible = true, int width = 0, GridViewAutoSize gridViewAutoSize = GridViewAutoSize.None, bool isUseAutoSize = false)
+        {
+            Title = title;
+            Visible = visible;
+            Width = width;
+            GridViewAutoSize = gridViewAutoSize;
+            IsUseAutoSize = isUseAutoSize;
+        }
+        public string Title { get; private set; }
+        public bool Visible { get; private set; }
+        public int Width { get; private set; }
+        public GridViewAutoSize GridViewAutoSize { get; private set; }
+        public bool IsUseAutoSize { get; private set; }
+    }
+}

ComputersShop/ComputersShopContracts/Attributes/GridViewAutoSize.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.Attributes
+{
+    public enum GridViewAutoSize
+    {
+        NotSet = 0,
+        None = 1,
+        ColumnHeader = 2,
+        AllCellsExceptHeader = 4,
+        AllCells = 6,
+        DisplayedCellsExceptHeader = 8,
+        DisplayedCells = 10,
+        Fill = 16
+    }
+}

ComputersShop/ComputersShopContracts/BindingModels/BackUpSaveBindingModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BindingModels
+{
+    public class BackUpSaveBinidngModel
+    {
+        public string FolderName { get; set; } = string.Empty;
+    }
+}