что-то во второй лабе

FoodOrders/FoodOrders.sln

@@ -9,9 +9,11 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FoodOrdersDataModels", "Foo
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FoodOrdersContracts", "FoodOrdersContracts\FoodOrdersContracts.csproj", "{5527E07B-9B94-4735-93FB-49267F0B8038}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FoodOrdersBusinessLogic", "FoodOrdersBusinessLogic\FoodOrdersBusinessLogic.csproj", "{4C44A99E-7D02-4D07-9714-9414423B560E}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FoodOrdersBusinessLogic", "FoodOrdersBusinessLogic\FoodOrdersBusinessLogic.csproj", "{4C44A99E-7D02-4D07-9714-9414423B560E}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FoodOrdersListImplement", "FoodOrdersListImplement\FoodOrdersListImplement.csproj", "{A4012AB3-40FB-4FF6-A55A-E593AB80A153}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FoodOrdersListImplement", "FoodOrdersListImplement\FoodOrdersListImplement.csproj", "{A4012AB3-40FB-4FF6-A55A-E593AB80A153}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FoodOrdersFileImplement", "FoodOrdersFileImplement\FoodOrdersFileImplement.csproj", "{E5B30B3F-30CF-4D4D-80E6-22A2EA20CC9C}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -39,6 +41,10 @@ Global
 		{A4012AB3-40FB-4FF6-A55A-E593AB80A153}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A4012AB3-40FB-4FF6-A55A-E593AB80A153}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{A4012AB3-40FB-4FF6-A55A-E593AB80A153}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E5B30B3F-30CF-4D4D-80E6-22A2EA20CC9C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E5B30B3F-30CF-4D4D-80E6-22A2EA20CC9C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E5B30B3F-30CF-4D4D-80E6-22A2EA20CC9C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E5B30B3F-30CF-4D4D-80E6-22A2EA20CC9C}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

FoodOrders/FoodOrders/FoodOrdersView.csproj

@@ -17,6 +17,7 @@
   <ItemGroup>
     <ProjectReference Include="..\FoodOrdersBusinessLogic\FoodOrdersBusinessLogic.csproj" />
     <ProjectReference Include="..\FoodOrdersContracts\FoodOrdersContracts.csproj" />
+    <ProjectReference Include="..\FoodOrdersFileImplement\FoodOrdersFileImplement.csproj" />
     <ProjectReference Include="..\FoodOrdersListImplement\FoodOrdersListImplement.csproj" />
   </ItemGroup>
 

FoodOrders/FoodOrders/FormCreateOrder.cs

@@ -45,12 +45,12 @@ namespace FoodOrdersView
                 try
                 {
                     int id = Convert.ToInt32(comboBoxDish.SelectedValue);
-                    var product = _logicS.ReadElement(new DishSearchModel
+                    var dish = _logicS.ReadElement(new DishSearchModel
                     {
                         Id = id
                     });
                     int count = Convert.ToInt32(textBoxCount.Text);
-                    textBoxSum.Text = Math.Round(count * (product?.Price ?? 0), 2).ToString();
+                    textBoxSum.Text = Math.Round(count * (dish?.Price ?? 0), 2).ToString();
                     _logger.LogInformation("Расчет суммы заказа");
                 }
                 catch (Exception ex)

FoodOrders/FoodOrders/Program.cs

@@ -4,7 +4,7 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using NLog.Extensions.Logging;
 using FoodOrdersView;
-using FoodOrdersListImplement.Implements;
+using FoodOrdersFileImplement.Implements;
 using FoodOrdersBusinessLogic.BusinessLogics;
 
 namespace FoodOrders

FoodOrders/FoodOrdersFileImplement/DataFileSingleton.cs

@@ -0,0 +1,57 @@
+using FoodOrdersFileImplement.Models;
+using System.Xml.Linq;
+namespace FoodOrdersFileImplement
+{
+    public 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/FoodOrdersFileImplement/FoodOrdersFileImplement.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="..\FoodOrdersContracts\FoodOrdersContracts.csproj" />
+    <ProjectReference Include="..\FoodOrdersDataModels\FoodOrdersDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

FoodOrders/FoodOrdersFileImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,77 @@
+using FoodOrdersContracts.BindingModels;
+using FoodOrdersContracts.SearchModels;
+using FoodOrdersContracts.StoragesContracts;
+using FoodOrdersContracts.ViewModels;
+using FoodOrdersFileImplement.Models;
+using FoodOrdersFileImplement;
+
+namespace FoodOrdersFileImplement.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.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 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/FoodOrdersFileImplement/Implements/DishStorage.cs

@@ -0,0 +1,99 @@
+using FoodOrdersContracts.BindingModels;
+using FoodOrdersContracts.SearchModels;
+using FoodOrdersContracts.StoragesContracts;
+using FoodOrdersContracts.ViewModels;
+using FoodOrdersFileImplement.Models;
+using FoodOrdersFileImplement;
+
+namespace FoodOrdersListImplement.Implements
+{
+    public class DishStorage : IDishStorage
+    {
+        private readonly DataFileSingleton _source;
+        public DishStorage()
+        {
+            _source = DataFileSingleton.GetInstance();
+        }
+        public List<DishViewModel> GetFullList()
+        {
+            return source.Components.Select(x => x.GetViewModel).ToList();
+        }
+        public List<DishViewModel> GetFilteredList(DishSearchModel
+       model)
+        {
+            var result = new List<DishViewModel>();
+            if (string.IsNullOrEmpty(model.DishName))
+            {
+                return result;
+            }
+            foreach (var dish in _source.Dishes)
+            {
+                if (dish.DishName.Contains(model.DishName))
+                {
+                    result.Add(dish.GetViewModel);
+                }
+            }
+            return result;
+        }
+        public DishViewModel? GetElement(DishSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.DishName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            foreach (var dish in _source.Dishes)
+            {
+                if ((!string.IsNullOrEmpty(model.DishName) &&
+                dish.DishName == model.DishName) ||
+                (model.Id.HasValue && dish.Id == model.Id))
+                {
+                    return dish.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public DishViewModel? Insert(DishBindingModel model)
+        {
+            model.Id = 1;
+            foreach (var dish in _source.Dishes)
+            {
+                if (model.Id <= dish.Id)
+                {
+                    model.Id = dish.Id + 1;
+                }
+            }
+            var newDish = Dish.Create(model);
+            if (newDish == null)
+            {
+                return null;
+            }
+            _source.Dishes.Add(newDish);
+            return newDish.GetViewModel;
+        }
+        public DishViewModel? Update(DishBindingModel model)
+        {
+            foreach (var dish in _source.Dishes)
+            {
+                if (dish.Id == model.Id)
+                {
+                    dish.Update(model);
+                    return dish.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public DishViewModel? Delete(DishBindingModel model)
+        {
+            for (int i = 0; i < _source.Dishes.Count; ++i)
+            {
+                if (_source.Dishes[i].Id == model.Id)
+                {
+                    var element = _source.Dishes[i];
+                    _source.Dishes.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+    }
+}

FoodOrders/FoodOrdersFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,118 @@
+using FoodOrdersContracts.BindingModels;
+using FoodOrdersContracts.SearchModels;
+using FoodOrdersContracts.StoragesContracts;
+using FoodOrdersContracts.ViewModels;
+using FoodOrdersFileImplement;
+
+namespace FoodOrdersListImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton _source;
+        public OrderStorage()
+        {
+            _source = DataFileSingleton.GetInstance();
+        }
+        public List<OrderViewModel> GetFullList()
+        {
+            var result = new List<OrderViewModel>();
+            foreach (var order in _source.Orders)
+            {
+                result.Add(GetViewModel(order));
+            }
+            return result;
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            var result = new List<OrderViewModel>();
+            if (!model.Id.HasValue)
+            {
+                return result;
+            }
+            foreach (var order in _source.Orders)
+            {
+                if (order.Id == model.Id)
+                {
+                    result.Add(GetViewModel(order));
+                }
+            }
+            return result;
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            foreach (var order in _source.Orders)
+            {
+                if (model.Id.HasValue && order.Id == model.Id)
+                {
+                    return GetViewModel(order);
+                }
+            }
+            return null;
+        }
+
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+            foreach (var iceCream in _source.Dish)
+            {
+                if (iceCream.Id == order.DishId)
+                {
+                    viewModel.DishName = iceCream.DishName;
+                    break;
+                }
+            }
+            return viewModel;
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            for (int i = 0; i < _source.Orders.Count; ++i)
+            {
+                if (_source.Orders[i].Id == model.Id)
+                {
+                    var element = _source.Orders[i];
+                    _source.Orders.RemoveAt(i);
+                    return GetViewModel(element);
+                }
+            }
+            return null;
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = 1;
+            foreach (var order in _source.Orders)
+            {
+                if (model.Id <= order.Id)
+                {
+                    model.Id = order.Id + 1;
+                }
+            }
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            _source.Orders.Add(newOrder);
+            return GetViewModel(newOrder);
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            foreach (var order in _source.Orders)
+            {
+                if (order.Id == model.Id)
+                {
+                    order.Update(model);
+                    return GetViewModel(order);
+                }
+            }
+            return null;
+        }
+    }
+}

FoodOrders/FoodOrdersFileImplement/Models/Component.cs

@@ -0,0 +1,58 @@
+using FoodOrdersContracts.BindingModels;
+using FoodOrdersContracts.ViewModels;
+using FoodOrdersDataModels.Models;
+using System.Xml.Linq;
+namespace FoodOrdersFileImplement.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/FoodOrdersFileImplement/Models/Dish.cs

@@ -0,0 +1,95 @@
+using FoodOrdersContracts.BindingModels;
+using FoodOrdersContracts.ViewModels;
+using FoodOrdersDataModels.Models;
+using FoodOrdersFileImplement;
+using System.Xml.Linq;
+namespace FoodOrdersFileImplement.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/FoodOrdersFileImplement/Models/Order.cs

@@ -0,0 +1,68 @@
+using FoodOrdersContracts.BindingModels;
+using FoodOrdersContracts.ViewModels;
+using FoodOrdersDataModels.Enums;
+using FoodOrdersDataModels.Models;
+using System.Reflection.Metadata;
+using System.Xml.Linq;
+
+namespace FoodOrdersFileImplement.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; }
+        public DateTime DateCreate { get; private set; }
+        public DateTime? DateImplement { get; private set; }
+
+        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("DocumentId")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Status = (OrderStatus)Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value),
+                DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
+                DateImplement = Convert.ToDateTime(element.Element("DateCreate")!.Value)
+            };
+        }
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            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.ToString()),
+           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/FoodOrdersListImplement/Implements/OrderStorage.cs

@@ -63,11 +63,11 @@ namespace FoodOrdersListImplement.Implements
         private OrderViewModel GetViewModel(Order order)
         {
             var viewModel = order.GetViewModel;
-            foreach (var iceCream in _source.Dish)
+            foreach (var dish in _source.Dish)
             {
-                if (iceCream.Id == order.DishId)
+                if (dish.Id == order.DishId)
                 {
-                    viewModel.DishName = iceCream.DishName;
+                    viewModel.DishName = dish.DishName;
                     break;
                 }
             }