Реализация хранения данных в файлах - лаб№2.

FoodOrders/AbstractShopFileImplement/AbstractFoodOrdersFileImplement.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\AbstractFoodOrdersContracts\AbstractFoodOrdersContracts.csproj" />
+    <ProjectReference Include="..\AbstractFoodOrdersDataModels\AbstractFoodOrdersDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

FoodOrders/AbstractShopFileImplement/DataFileSingleton.cs

@@ -0,0 +1,63 @@
+using AbstractFoodOrdersFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace AbstractFoodOrdersFileImplement
+{
+    internal class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        private readonly string ComponentFileName = "Component.xml";
+        private readonly string OrderFileName = "Order.xml";
+        private readonly string DishFileName = "Dish.xml";
+        public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Dish> Dishes { get; private set; }
+        public static DataFileSingleton GetInstance()
+        {
+            if (instance == null)
+            {
+                instance = new DataFileSingleton();
+            }
+            return instance;
+        }
+        public void SaveComponents() => SaveData(Components, ComponentFileName,
+       "Components", x => x.GetXElement);
+        public void SaveDishes() => SaveData(Dishes, DishFileName,
+       "Dishes", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName,
+       "Orders", x => x.GetXElement);
+        private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", x =>
+           Component.Create(x)!)!;
+            Dishes = LoadData(DishFileName, "Dish", x =>
+           Dish.Create(x)!)!;
+            Orders = LoadData(OrderFileName, "Order", x =>
+           Order.Create(x)!)!;
+        }
+        private static List<T>? LoadData<T>(string filename, string xmlNodeName,
+       Func<XElement, T> selectFunction)
+        {
+            if (File.Exists(filename))
+            {
+                return
+               XDocument.Load(filename)?.Root?.Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
+            }
+            return new List<T>();
+        }
+        private static void SaveData<T>(List<T> data, string filename, string
+       xmlNodeName, Func<T, XElement> selectFunction)
+        {
+            if (data != null)
+            {
+                new XDocument(new XElement(xmlNodeName,
+               data.Select(selectFunction).ToArray())).Save(filename);
+            }
+        }
+    }
+}

FoodOrders/AbstractShopFileImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,81 @@
+using AbstractFoodOrdersContracts.BindingModels;
+using AbstractFoodOrdersContracts.SearchModels;
+using AbstractFoodOrdersContracts.StoragesContracts;
+using AbstractFoodOrdersContracts.ViewModels;
+using AbstractFoodOrdersFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractFoodOrdersFileImplement.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;
+        }
+    }
+}

FoodOrders/AbstractShopFileImplement/Implements/DishStorage.cs

@@ -0,0 +1,86 @@
+using AbstractFoodOrdersContracts.BindingModels;
+using AbstractFoodOrdersContracts.SearchModels;
+using AbstractFoodOrdersContracts.StoragesContracts;
+using AbstractFoodOrdersContracts.ViewModels;
+using AbstractFoodOrdersFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractFoodOrdersFileImplement.Implements
+{
+    public class DishStorage : IDishStorage
+    {
+        private readonly DataFileSingleton source;
+        public DishStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public DishViewModel? Delete(DishBindingModel model)
+        {
+            var element = source.Dishes.FirstOrDefault(x => x.Id ==
+           model.Id);
+            if (element != null)
+            {
+                source.Dishes.Remove(element);
+                source.SaveDishes();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public DishViewModel? GetElement(DishSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.DishName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Dishes.FirstOrDefault(x =>(!string.IsNullOrEmpty(model.DishName) && x.DishName ==model.DishName) ||
+            (model.Id.HasValue && x.Id == model.Id))
+            ?.GetViewModel;
+        }
+
+        public List<DishViewModel> GetFilteredList(DishSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.DishName))
+            {
+                return new();
+            }
+            return source.Dishes.Where(x => x.DishName.Contains(model.DishName)).Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<DishViewModel> GetFullList()
+        {
+            return source.Dishes.Select(x => x.GetViewModel).ToList();
+        }
+
+        public DishViewModel? Insert(DishBindingModel model)
+        {
+            model.Id = source.Dishes.Count > 0 ? source.Dishes.Max(x =>
+           x.Id) + 1 : 1;
+            var newComponent = Dish.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            source.Dishes.Add(newComponent);
+            source.SaveDishes();
+            return newComponent.GetViewModel;
+        }
+
+        public DishViewModel? Update(DishBindingModel model)
+        {
+            var component = source.Dishes.FirstOrDefault(x => x.Id ==
+           model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            source.SaveDishes();
+            return component.GetViewModel;
+        }
+    }
+}

FoodOrders/AbstractShopFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,110 @@
+using AbstractFoodOrdersContracts.BindingModels;
+using AbstractFoodOrdersContracts.SearchModels;
+using AbstractFoodOrdersContracts.StoragesContracts;
+using AbstractFoodOrdersContracts.ViewModels;
+using AbstractFoodOrdersFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractFoodOrdersFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => GetViewModel(x)).ToList();
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+
+            return source.Orders.Where(x => x.Id == model.Id).Select(x => GetViewModel(x)).ToList();
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return source.Orders.FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        //для загрузки названий изделия в заказе
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+
+            var manufacture = source.Dishes.FirstOrDefault(x => x.Id == order.DishId);
+
+            if (manufacture != null)
+            {
+                viewModel.DishName = manufacture.DishName;
+            }
+
+            return viewModel;
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
+
+            var newOrder = Order.Create(model);
+
+            if (newOrder == null)
+            {
+                return null;
+            }
+
+            source.Orders.Add(newOrder);
+            source.SaveOrders();
+
+            return GetViewModel(newOrder);
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+
+            if (order == null)
+            {
+                return null;
+            }
+
+            order.Update(model);
+            source.SaveOrders();
+
+            return GetViewModel(order);
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var element = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+
+            if (element != null)
+            {
+                source.Orders.Remove(element);
+                source.SaveOrders();
+
+                return GetViewModel(element);
+            }
+
+            return null;
+        }
+    }
+}

FoodOrders/AbstractShopFileImplement/Models/Component.cs

@@ -0,0 +1,60 @@
+using AbstractFoodOrdersContracts.BindingModels;
+using AbstractFoodOrdersContracts.ViewModels;
+using AbstractFoodOrdersDataModels.Models;
+using System.Xml.Linq;
+
+namespace AbstractFoodOrdersFileImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        public string ComponentName { get; private set; } = string.Empty;
+        public double Cost { get; set; }
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public static Component? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ComponentName = element.Element("ComponentName")!.Value,
+                Cost = Convert.ToDouble(element.Element("Cost")!.Value)
+            };
+        }
+        public void Update(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+        public XElement GetXElement => new("Component",
+        new XAttribute("Id", Id),
+        new XElement("ComponentName", ComponentName),
+        new XElement("Cost", Cost.ToString()));
+    }
+
+}

FoodOrders/AbstractShopFileImplement/Models/Dish.cs

@@ -0,0 +1,100 @@
+using AbstractFoodOrdersContracts.BindingModels;
+using AbstractFoodOrdersContracts.ViewModels;
+using AbstractFoodOrdersDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace AbstractFoodOrdersFileImplement.Models
+{
+    public class Dish : IDishModel
+    {
+        public int Id { get; private set; }
+        public string DishName { get; private set; } = string.Empty;
+        public double Price { get; private set; }
+        public Dictionary<int, int> Components { get; private set; } = new();
+        private Dictionary<int, (IComponentModel, int)>? _dishComponents =
+       null;
+        public Dictionary<int, (IComponentModel, int)> DishComponents
+        {
+            get
+            {
+                if (_dishComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _dishComponents = Components.ToDictionary(x => x.Key, y =>
+                    ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
+                    y.Value));
+                }
+                return _dishComponents;
+            }
+        }
+        public static Dish? Create(DishBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Dish()
+            {
+                Id = model.Id,
+                DishName = model.DishName,
+                Price = model.Price,
+                Components = model.DishComponents.ToDictionary(x => x.Key, x
+               => x.Value.Item2)
+            };
+        }
+        public static Dish? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Dish()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                DishName = element.Element("DishName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components =
+           element.Element("DishComponents")!.Elements("DishComponent")
+            .ToDictionary(x =>
+           Convert.ToInt32(x.Element("Key")?.Value), x =>
+           Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(DishBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            DishName = model.DishName;
+            Price = model.Price;
+            Components = model.DishComponents.ToDictionary(x => x.Key, x =>
+           x.Value.Item2);
+            _dishComponents = null;
+        }
+        public DishViewModel GetViewModel => new()
+        {
+            Id = Id,
+            DishName = DishName,
+            Price = Price,
+            DishComponents = DishComponents
+        };
+        public XElement GetXElement => new("Dish",
+        new XAttribute("Id", Id),
+        new XElement("DishName", DishName),
+        new XElement("Price", Price.ToString()),
+        new XElement("DishComponents", Components.Select(x =>
+       new XElement("DishComponent",
+
+       new XElement("Key", x.Key),
+
+       new XElement("Value", x.Value)))
+
+       .ToArray()));
+    }
+}

FoodOrders/AbstractShopFileImplement/Models/Order.cs

@@ -0,0 +1,92 @@
+using AbstractFoodOrdersContracts.BindingModels;
+using AbstractFoodOrdersContracts.ViewModels;
+using AbstractFoodOrdersDataModels.Enums;
+using AbstractFoodOrdersDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace AbstractFoodOrdersFileImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        public int DishId { get; private set; }
+        public int Count { get; private set; }
+        public double Sum { get; private set; }
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+        public DateTime? DateImplement { get; private set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                DishId = model.DishId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement
+            };
+        }
+        public static Order? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                DishId = Convert.ToInt32(element.Element("DishId")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                Status = (OrderStatus)Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value),
+                DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
+                DateImplement = string.IsNullOrEmpty(element.Element("DateImplement")!.Value) ? null :
+                    Convert.ToDateTime(element.Element("DateImplement")!.Value)
+            };
+        }
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            DishId = model.DishId;
+            Count = model.Count;
+            Sum = model.Sum;
+            Status = model.Status;
+            DateCreate = model.DateCreate;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            DishId = DishId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+        public XElement GetXElement => new("Order",
+            new XAttribute("Id", Id),
+            new XElement("DishId", DishId),
+            new XElement("Count", Count.ToString()),
+            new XElement("Sum", Sum.ToString()),
+            new XElement("Status", Status.ToString()),
+            new XElement("DateCreate", DateCreate.ToString()),
+            new XElement("DateImplement", DateImplement.ToString()));
+    }
+}

FoodOrders/FoodOrders.sln

@@ -13,6 +13,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AbstractFoodOrdersBusinessL
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AbstractFoodOrdersListImplement", "AbstractFoodOrdersListImplement\AbstractFoodOrdersListImplement.csproj", "{275ED134-536F-4025-BE10-2718F66FBD10}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AbstractFoodOrdersFileImplement", "AbstractShopFileImplement\AbstractFoodOrdersFileImplement.csproj", "{D0FC0C67-FFF7-4D2A-9194-A1466C82EDAB}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -39,6 +41,10 @@ Global
 		{275ED134-536F-4025-BE10-2718F66FBD10}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{275ED134-536F-4025-BE10-2718F66FBD10}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{275ED134-536F-4025-BE10-2718F66FBD10}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D0FC0C67-FFF7-4D2A-9194-A1466C82EDAB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D0FC0C67-FFF7-4D2A-9194-A1466C82EDAB}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D0FC0C67-FFF7-4D2A-9194-A1466C82EDAB}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D0FC0C67-FFF7-4D2A-9194-A1466C82EDAB}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

FoodOrders/FoodOrders/FoodOrders.csproj

@@ -18,6 +18,7 @@
     <ProjectReference Include="..\AbstractFoodOrdersContracts\AbstractFoodOrdersContracts.csproj" />
     <ProjectReference Include="..\AbstractFoodOrdersDataModels\AbstractFoodOrdersDataModels.csproj" />
     <ProjectReference Include="..\AbstractFoodOrdersListImplement\AbstractFoodOrdersListImplement.csproj" />
+    <ProjectReference Include="..\AbstractShopFileImplement\AbstractFoodOrdersFileImplement.csproj" />
   </ItemGroup>
 
   <ItemGroup>

FoodOrders/FoodOrders/FormComponent.Designer.cs

@@ -1,4 +1,4 @@
-namespace AbstractFoodOrdersView
+namespace FoodOrders
 {
     partial class FormComponent
     {

FoodOrders/FoodOrders/FormComponent.cs

@@ -12,7 +12,7 @@ using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
 
-namespace AbstractFoodOrdersView
+namespace FoodOrders
 {
     public partial class FormComponent : Form
     {

FoodOrders/FoodOrders/FormComponents.Designer.cs

@@ -1,4 +1,4 @@
-namespace AbstractFoodOrdersView
+namespace FoodOrders
 {
     partial class FormComponents
     {

FoodOrders/FoodOrders/FormComponents.cs

@@ -12,7 +12,7 @@ using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
 
-namespace AbstractFoodOrdersView
+namespace FoodOrders
 {
     public partial class FormComponents : Form
     {

FoodOrders/FoodOrders/FormMain.cs

@@ -1,6 +1,5 @@
 using AbstractFoodOrdersContracts.BindingModels;
 using AbstractFoodOrdersContracts.BusinessLogicsContracts;
-using AbstractFoodOrdersView;
 using Microsoft.Extensions.Logging;
 using System;
 using System.Collections.Generic;

FoodOrders/FoodOrders/Program.cs

@@ -1,8 +1,7 @@
 using AbstractFoodOrdersBusinessLogic.BusinessLogics;
 using AbstractFoodOrdersContracts.BusinessLogicsContracts;
 using AbstractFoodOrdersContracts.StoragesContracts;
-using AbstractFoodOrdersListImplement.Implements;
+using AbstractFoodOrdersFileImplement.Implements;
-using AbstractFoodOrdersView;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using NLog.Extensions.Logging;