Реализованы интерфейсы классов хранилищ сущностей

ConfectionaryFileImplement/ComponentStorage.cs

@@ -0,0 +1,79 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContract;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryFileImplement.Models;
+
+namespace ConfectioneryFileImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        private readonly DataFileSingleton _source;
+        public ComponentStorage()
+        {
+            _source = DataFileSingleton.GetInstance();
+        }
+        public List<ComponentViewModel> GetFullList()
+        {
+            return _source.Components
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+            return _source.Components
+                .Where(x => x.ComponentName.Contains(model.ComponentName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return _source.Components.FirstOrDefault(x => 
+                    (!string.IsNullOrEmpty(model.ComponentName) && 
+                    x.ComponentName == model.ComponentName) ||
+                    (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            model.Id = _source.Components.Count > 0 ? _source.Components.Max(x => x.Id) + 1 : 1;
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            _source.Components.Add(newComponent);
+            _source.SaveComponents();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            var component = _source.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            _source.SaveComponents();
+            return component.GetViewModel;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            var element = _source.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                _source.Components.Remove(element);
+                _source.SaveComponents();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ConfectionaryFileImplement/DataFileSingleton.cs

@@ -11,7 +11,8 @@ namespace ConfectioneryFileImplement
         private readonly string PastryFileName = "Pastry.xml";
         public List<Component> Components { get; private set; }
         public List<Order> Orders { get; private set; }
-        public List<Pastry> Pastrys { get; private set; }
+        public List<Pastry> Pastries { get; private set; }
+
         public static DataFileSingleton GetInstance()
         {
             if (instance == null)
@@ -21,14 +22,14 @@ namespace ConfectioneryFileImplement
             return instance;
         }
         public void SaveComponents() => SaveData(Components, ComponentFileName, "Components", x => x.GetXElement);
-        public void SavePastrys() => SaveData(Pastrys, PastryFileName, "Pastrys", x => x.GetXElement);
+        public void SavePastries() => SaveData(Pastries, PastryFileName, "Pastries", x => x.GetXElement);
-        public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x
+        public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
-        => x.GetXElement);
+
         private DataFileSingleton()
         {
             Components = LoadData(ComponentFileName, "Component", x =>
             Component.Create(x)!)!;
-            Pastrys = LoadData(PastryFileName, "Pastry", x =>
+            Pastries = LoadData(PastryFileName, "Pastry", x =>
             Pastry.Create(x)!)!;
             Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
         }
@@ -44,8 +45,7 @@ namespace ConfectioneryFileImplement
         {
             if (data != null)
             {
-                new XDocument(new XElement(xmlNodeName,
+                new XDocument(new XElement(xmlNodeName, data.Select(selectFunction).ToArray())).Save(filename);
-                data.Select(selectFunction).ToArray())).Save(filename);
             }
         }
     }

ConfectionaryFileImplement/OrderStorage.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryFileImplement
+{
+    internal class OrderStorage
+    {
+    }
+}

ConfectionaryFileImplement/PastryStorage.cs

@@ -0,0 +1,81 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContract;
+using ConfectioneryContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryFileImplement
+{
+    public class PastryStorage : IPastryStorage
+    {
+        private readonly DataFileSingleton _source;
+        public PastryStorage()
+        {
+            _source = DataFileSingleton.GetInstance();
+        }
+
+        public PastryViewModel? Delete(PastryBindingModel model)
+        {
+            var element = _source.Pastries.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                _source.Pastries.Remove(element);
+                _source.Savepastrys();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public PastryViewModel? GetElement(PastrySearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PastryName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return _source.Pastries.FirstOrDefault
+                (x => (!string.IsNullOrEmpty(model.PastryName) && x.PastryName == model.PastryName) ||
+                      (model.Id.HasValue && x.Id == model.Id)
+                )?.GetViewModel;
+        }
+
+        public List<PastryViewModel> GetFilteredList(PastrySearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PastryName))
+            {
+                return new();
+            }
+            return _source.Pastries
+                .Select(x => x.GetViewModel)
+                .Where(x => x.PastryName.Contains(model.PastryName))
+                .ToList();
+        }
+
+        public List<PastryViewModel> GetFullList()
+        {
+            return _source.Pastries
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public PastryViewModel? Insert(PastryBindingModel model)
+        {
+            throw new NotImplementedException();
+        }
+
+        public PastryViewModel? Update(PastryBindingModel model)
+        {
+            var pastry = _source.Pastries.FirstOrDefault(x => x.Id == model.Id);
+            if (pastry == null)
+            {
+                return null;
+            }
+            pastry.Update(model);
+            _source.SavePastries();
+            return pastry.GetViewModel;
+        }
+    }
+}