11 changed files with 550 additions and 2 deletions
--- a/RenovationWork/RenovationWork.sln
+++ b/RenovationWork/RenovationWork.sln
@ -3,7 +3,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.8.34330.188
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RenovationWorkView", "RenovationWork\RenovationWorkView.csproj", "{0CB24AB4-7DB9-4B3B-B178-A5866CAB684D}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "RenovationWorkView", "RenovationWork\RenovationWorkView.csproj", "{0CB24AB4-7DB9-4B3B-B178-A5866CAB684D}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "RenovationWorkDataModels", "RenovationWorkDataModels\RenovationWorkDataModels.csproj", "{82B84205-6A94-434F-8A60-DD5EE186CF18}"
 EndProject
@ -13,6 +13,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "RenovationWorkBusinessLogic
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "RenovationWorkListImplement", "RenovationWorkListImplement\RenovationWorkListImplement.csproj", "{CBEF7964-AEB9-4FE9-B85F-9FBDEE198EED}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RenovationWorkFileImplement", "RenovationWorkFileImplement\RenovationWorkFileImplement.csproj", "{C52182B7-2CA7-4D36-BC9F-81F165A4539A}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@ -39,6 +41,10 @@ Global
 		{CBEF7964-AEB9-4FE9-B85F-9FBDEE198EED}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{CBEF7964-AEB9-4FE9-B85F-9FBDEE198EED}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{CBEF7964-AEB9-4FE9-B85F-9FBDEE198EED}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C52182B7-2CA7-4D36-BC9F-81F165A4539A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C52182B7-2CA7-4D36-BC9F-81F165A4539A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C52182B7-2CA7-4D36-BC9F-81F165A4539A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C52182B7-2CA7-4D36-BC9F-81F165A4539A}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
--- a/RenovationWork/RenovationWork/Program.cs
+++ b/RenovationWork/RenovationWork/Program.cs
@ -1,7 +1,7 @@
 using RenovationWorkBusinessLogic.BusinessLogics;
 using RenovationWorkContracts.BusinessLogicsContracts;
 using RenovationWorkContracts.StoragesContracts;
-using RenovationWorkListImplement.Implements;
+using RenovationWorkFileImplement.Implements;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using NLog.Extensions.Logging;
--- a/RenovationWork/RenovationWork/RenovationWorkView.csproj
+++ b/RenovationWork/RenovationWork/RenovationWorkView.csproj
@ -16,6 +16,7 @@
  <ItemGroup>
    <ProjectReference Include="..\RenovationWorkBusinessLogic\RenovationWorkBusinessLogic.csproj" />
    <ProjectReference Include="..\RenovationWorkContracts\RenovationWorkContracts.csproj" />
+    <ProjectReference Include="..\RenovationWorkFileImplement\RenovationWorkFileImplement.csproj" />
    <ProjectReference Include="..\RenovationWorkListImplement\RenovationWorkListImplement.csproj" />
  </ItemGroup>

--- a/RenovationWork/RenovationWorkFileImplement/DataFileSingleton.cs
+++ b/RenovationWork/RenovationWorkFileImplement/DataFileSingleton.cs
@ -0,0 +1,55 @@
+using RenovationWorkFileImplement.Models;
+using System.Xml.Linq;
+
+namespace RenovationWorkFileImplement
+{
+    public class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        private readonly string ComponentFileName = "Component.xml";
+        private readonly string OrderFileName = "Order.xml";
+        private readonly string RepairFileName = "Repair.xml";
+        public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Repair> Repairs { 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 SaveRepairs() => SaveData(Repairs, RepairFileName, "Repairs", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
+        private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", x =>
+           Component.Create(x)!)!;
+            Repairs = LoadData(RepairFileName, "Repair", x =>
+           Repair.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);
+            }
+        }
+    }
+}
--- a/RenovationWork/RenovationWorkFileImplement/Implements/ComponentStorage.cs
+++ b/RenovationWork/RenovationWorkFileImplement/Implements/ComponentStorage.cs
@ -0,0 +1,84 @@
+using RenovationWorkContracts.BindingModels;
+using RenovationWorkContracts.SearchModels;
+using RenovationWorkContracts.StoragesContracts;
+using RenovationWorkContracts.ViewModels;
+using RenovationWorkFileImplement.Models;
+
+namespace RenovationWorkFileImplement.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;
+            }
+
+            //чтобы получить первый элемент, который удовлетворяет заданным условиям выборки
+            return source.Components
+            .FirstOrDefault(x =>
+            (!string.IsNullOrEmpty(model.ComponentName) && x.ComponentName == model.ComponentName) ||
+            (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;       
+            //вызывается для найденного элемента вернуть представление модели ComponentViewModel
+        }
+        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;
+        }
+    }
+}
--- a/RenovationWork/RenovationWorkFileImplement/Implements/OrderStorage.cs
+++ b/RenovationWork/RenovationWorkFileImplement/Implements/OrderStorage.cs
@ -0,0 +1,81 @@
+using RenovationWorkContracts.BindingModels;
+using RenovationWorkContracts.SearchModels;
+using RenovationWorkContracts.StoragesContracts;
+using RenovationWorkContracts.ViewModels;
+using RenovationWorkFileImplement.Models;
+using System.Reflection;
+
+namespace RenovationWorkFileImplement.Implements
+{
+    public class OrderStorage: IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => AccessRepairStorage(x.GetViewModel)).ToList();
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            return source.Orders.Where(x => x.Id == model.Id)
+               .Select(x => AccessRepairStorage(x.GetViewModel)).ToList();
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            return AccessRepairStorage(source.Orders.FirstOrDefault(
+                x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel);
+        }
+        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 AccessRepairStorage(newOrder.GetViewModel);
+        }
+        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 AccessRepairStorage(order.GetViewModel);
+        }
+        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 AccessRepairStorage(element.GetViewModel);
+            }
+            return null;
+        }
+        public OrderViewModel? AccessRepairStorage(OrderViewModel model)
+        {
+            var SelectedRepair = source.Repairs.FirstOrDefault(x => x.Id == model.RepairId);
+
+            model.RepairName = SelectedRepair?.RepairName ?? string.Empty;
+            return model;
+        }
+    }
+}
--- a/RenovationWork/RenovationWorkFileImplement/Implements/RepairStorage.cs
+++ b/RenovationWork/RenovationWorkFileImplement/Implements/RepairStorage.cs
@ -0,0 +1,81 @@
+using RenovationWorkContracts.BindingModels;
+using RenovationWorkContracts.SearchModels;
+using RenovationWorkContracts.StoragesContracts;
+using RenovationWorkContracts.ViewModels;
+using RenovationWorkFileImplement.Models;
+
+namespace RenovationWorkFileImplement.Implements
+{
+    public class RepairStorage: IRepairStorage
+    {
+        private readonly DataFileSingleton source;
+        public RepairStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<RepairViewModel> GetFullList()
+        {
+            return source.Repairs
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+
+        public List<RepairViewModel> GetFilteredList(RepairSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.RepairName))
+            {
+                return new();
+            }
+            return source.Repairs
+            .Where(x => x.RepairName.Contains(model.RepairName))
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public RepairViewModel? GetElement(RepairSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.RepairName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Repairs
+            .FirstOrDefault(x =>
+            (!string.IsNullOrEmpty(model.RepairName) && x.RepairName == model.RepairName) ||
+            (model.Id.HasValue && x.Id == model.Id))
+            ?.GetViewModel;
+        }
+        public RepairViewModel? Insert(RepairBindingModel model)
+        {
+            model.Id = source.Repairs.Count > 0 ? source.Repairs.Max(x => x.Id) + 1 : 1;
+            var newRepair = Repair.Create(model);
+            if (newRepair == null)
+            {
+                return null;
+            }
+            source.Repairs.Add(newRepair);
+            source.SaveRepairs();
+            return newRepair.GetViewModel;
+        }
+        public RepairViewModel? Update(RepairBindingModel model)
+        {
+            var Repair = source.Repairs.FirstOrDefault(x => x.Id == model.Id);
+            if (Repair == null)
+            {
+                return null;
+            }
+            Repair.Update(model);
+            source.SaveRepairs();
+            return Repair.GetViewModel;
+        }
+        public RepairViewModel? Delete(RepairBindingModel model)
+        {
+            var Repair = source.Repairs.FirstOrDefault(x => x.Id == model.Id);
+            if (Repair != null)
+            {
+                source.Repairs.Remove(Repair);
+                source.SaveRepairs();
+                return Repair.GetViewModel;
+            }
+            return null;
+        }
+    }
+}
--- a/RenovationWork/RenovationWorkFileImplement/Models/Component.cs
+++ b/RenovationWork/RenovationWorkFileImplement/Models/Component.cs
@ -0,0 +1,60 @@
+using RenovationWorkContracts.BindingModels;
+using RenovationWorkContracts.ViewModels;
+using RenovationWorkDataModels.Models;
+using System.Xml.Linq;
+
+
+namespace RenovationWorkFileImplement.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()));
+    }
+}
--- a/RenovationWork/RenovationWorkFileImplement/Models/Order.cs
+++ b/RenovationWork/RenovationWorkFileImplement/Models/Order.cs
@ -0,0 +1,82 @@
+using RenovationWorkContracts.BindingModels;
+using RenovationWorkContracts.ViewModels;
+using RenovationWorkDataModels.Enums;
+using RenovationWorkDataModels.Models;
+using System.Xml.Linq;
+
+namespace RenovationWorkFileImplement.Models
+{
+    public class Order: IOrderModel
+    {
+        public int Id { get; private set; }
+        public int RepairId { 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(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                RepairId = model.RepairId,
+                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),
+                RepairId = Convert.ToInt32(element.Element("RepairId")!.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.ToString()),
+                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;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            RepairId = RepairId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+        public XElement GetXElement => new("Order",
+        new XAttribute("Id", Id),
+        new XElement("RepairId", RepairId),
+        new XElement("Sum", Sum.ToString()),
+        new XElement("Count", Count),
+        new XElement("Status", Status.ToString()),
+        new XElement("DateCreate", DateCreate.ToString()),
+        new XElement("DateImplement", DateImplement.ToString())
+        );
+    }
+}
--- a/RenovationWork/RenovationWorkFileImplement/Models/Repair.cs
+++ b/RenovationWork/RenovationWorkFileImplement/Models/Repair.cs
@ -0,0 +1,84 @@
+using RenovationWorkContracts.BindingModels;
+using RenovationWorkContracts.ViewModels;
+using RenovationWorkDataModels.Models;
+using System.Xml.Linq;
+
+namespace RenovationWorkFileImplement.Models
+{
+    public class Repair : IRepairModel
+    {
+        public int Id { get; private set; }
+        public string RepairName { 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)>? _repairComponents = null;
+        public Dictionary<int, (IComponentModel, int)> RepairComponents
+        {
+            get
+            {
+                if (_repairComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _repairComponents = Components.ToDictionary(x => x.Key, y =>
+                    ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!, y.Value));
+                }
+                return _repairComponents;
+            }
+        }
+        public static Repair? Create(RepairBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Repair()
+            {
+                Id = model.Id,
+                RepairName = model.RepairName,
+                Price = model.Price,
+                Components = model.RepairComponents.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+        public static Repair? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Repair()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                RepairName = element.Element("RepairName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components = element.Element("RepairComponents")!.Elements("RepairComponent").ToDictionary(x =>
+                Convert.ToInt32(x.Element("Key")?.Value), x => Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(RepairBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            RepairName = model.RepairName;
+            Price = model.Price;
+            Components = model.RepairComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _repairComponents = null;
+        }
+        public RepairViewModel GetViewModel => new()
+        {
+            Id = Id,
+            RepairName = RepairName,
+            Price = Price,
+            RepairComponents = RepairComponents
+        };
+        public XElement GetXElement => new("Repair",
+                         new XAttribute("Id", Id),
+                         new XElement("RepairName", RepairName),
+                         new XElement("Price", Price.ToString()),
+                         new XElement("RepairComponents", Components.Select(x =>
+                         new XElement("RepairComponent",
+                         new XElement("Key", x.Key),
+                         new XElement("Value", x.Value))).ToArray()));
+    }
+}
--- a/RenovationWork/RenovationWorkFileImplement/RenovationWorkFileImplement.csproj
+++ b/RenovationWork/RenovationWorkFileImplement/RenovationWorkFileImplement.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="..\RenovationWorkContracts\RenovationWorkContracts.csproj" />
+    <ProjectReference Include="..\RenovationWorkDataModels\RenovationWorkDataModels.csproj" />
+  </ItemGroup>
+
+</Project>