11 changed files with 604 additions and 1 deletions
--- a/PlumbingRepair/PlumbingRepair.sln
+++ b/PlumbingRepair/PlumbingRepair.sln
@ -13,6 +13,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairDataModels",
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairListImplement", "PlumbingRepairListImplement\PlumbingRepairListImplement.csproj", "{A5D22B59-19BC-4DB6-A234-24AEA47605C2}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairFileImplement", "PlumbingRepairFileImplement\PlumbingRepairFileImplement.csproj", "{8BB0E6DF-704B-4660-8D5E-4D263CD40C98}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@ -39,6 +41,10 @@ Global
 		{A5D22B59-19BC-4DB6-A234-24AEA47605C2}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A5D22B59-19BC-4DB6-A234-24AEA47605C2}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{A5D22B59-19BC-4DB6-A234-24AEA47605C2}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8BB0E6DF-704B-4660-8D5E-4D263CD40C98}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8BB0E6DF-704B-4660-8D5E-4D263CD40C98}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8BB0E6DF-704B-4660-8D5E-4D263CD40C98}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8BB0E6DF-704B-4660-8D5E-4D263CD40C98}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
--- a/PlumbingRepair/PlumbingRepairFileImplement/DataFileSingleton.cs
+++ b/PlumbingRepair/PlumbingRepairFileImplement/DataFileSingleton.cs
@ -0,0 +1,61 @@
+using PlumbingRepairFileImplement.Models;
+using System.Xml.Linq;
+
+namespace PlumbingRepairFileImplement
+{
+    internal class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+
+        private readonly string ComponentFileName = "Component.xml";
+
+        private readonly string OrderFileName = "Order.xml";
+
+        private readonly string WorkFileName = "Work.xml";
+
+        public List<Component> Components { get; private set; }
+
+        public List<Order> Orders { get; private set; }
+
+        public List<Work> Works { 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 SaveWorks() => SaveData(Works, WorkFileName, "Works", x => x.GetXElement);
+
+        public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
+
+        private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
+            Works = LoadData(WorkFileName, "Work", x => Work.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/PlumbingRepair/PlumbingRepairFileImplement/Implements/ComponentStorage.cs
+++ b/PlumbingRepair/PlumbingRepairFileImplement/Implements/ComponentStorage.cs
@ -0,0 +1,86 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairFileImplement.Models;
+
+namespace PlumbingRepairFileImplement.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;
+        }
+    }
+}
--- a/PlumbingRepair/PlumbingRepairFileImplement/Implements/OrderStorage.cs
+++ b/PlumbingRepair/PlumbingRepairFileImplement/Implements/OrderStorage.cs
@ -0,0 +1,93 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairFileImplement.Models;
+
+namespace PlumbingRepairFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        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;
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            return GetViewModel(source.Orders.FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id));
+                     
+        }
+
+        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 List<OrderViewModel> GetFullList()
+        {
+            return source.Orders
+                   .Select(x => GetViewModel(x))
+                   .ToList();
+        }
+
+        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);
+        }
+
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+            var work = source.Works.FirstOrDefault(x => x.Id == order.WorkId);
+            if (work != null)
+            {
+                viewModel.WorkName = work.WorkName;
+            }
+            return viewModel;
+        }
+    }
+}
--- a/PlumbingRepair/PlumbingRepairFileImplement/Implements/WorkStorage.cs
+++ b/PlumbingRepair/PlumbingRepairFileImplement/Implements/WorkStorage.cs
@ -0,0 +1,85 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairFileImplement.Models;
+
+namespace PlumbingRepairFileImplement.Implements
+{
+    public class WorkStorage : IWorkStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public WorkStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public WorkViewModel? Delete(WorkBindingModel model)
+        {
+            var element = source.Works.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Works.Remove(element);
+                source.SaveWorks();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public WorkViewModel? GetElement(WorkSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Works
+                    .FirstOrDefault(x => (!string.IsNullOrEmpty(model.WorkName) && x.WorkName == model.WorkName) ||
+                                        (model.Id.HasValue && x.Id == model.Id))
+                    ?.GetViewModel;
+        }
+
+        public List<WorkViewModel> GetFilteredList(WorkSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkName))
+            {
+                return new();
+            }
+            return source.Works
+                    .Where(x => x.WorkName.Contains(model.WorkName))
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public List<WorkViewModel> GetFullList()
+        {
+            return source.Works
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public WorkViewModel? Insert(WorkBindingModel model)
+        {
+            model.Id = source.Works.Count > 0 ? source.Works.Max(x => x.Id) + 1 : 1;
+            var newWork = Work.Create(model);
+            if (newWork == null)
+            {
+                return null;
+            }
+            source.Works.Add(newWork);
+            source.SaveWorks();
+            return newWork.GetViewModel;
+        }
+
+        public WorkViewModel? Update(WorkBindingModel model)
+        {
+            var work = source.Works.FirstOrDefault(x => x.Id == model.Id);
+            if (work == null)
+            {
+                return null;
+            }
+            work.Update(model);
+            source.SaveWorks();
+            return work.GetViewModel;
+        }
+    }
+}
--- a/PlumbingRepair/PlumbingRepairFileImplement/Models/Component.cs
+++ b/PlumbingRepair/PlumbingRepairFileImplement/Models/Component.cs
@ -0,0 +1,66 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Models;
+using System.Xml.Linq;
+
+namespace PlumbingRepairFileImplement.Models
+{
+    internal 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/PlumbingRepair/PlumbingRepairFileImplement/Models/Order.cs
+++ b/PlumbingRepair/PlumbingRepairFileImplement/Models/Order.cs
@ -0,0 +1,94 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Enums;
+using PlumbingRepairDataModels.Models;
+using System.Reflection;
+using System.Xml.Linq;
+
+namespace PlumbingRepairFileImplement.Models
+{
+    internal class Order : IOrderModel
+    {
+        public int WorkId { 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 int Id { get; private set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                WorkId = model.WorkId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+                Id = model.Id,
+            };
+        }
+
+        public static Order? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                WorkId = Convert.ToInt32(element.Element("WorkId")!.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;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            WorkId = WorkId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+            Id = Id,
+        };
+
+        public XElement GetXElement => new(
+            "Order",
+            new XAttribute("Id", Id),
+            new XElement("WorkId", WorkId.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())
+            );
+    }
+}
--- a/PlumbingRepair/PlumbingRepairFileImplement/Models/Work.cs
+++ b/PlumbingRepair/PlumbingRepairFileImplement/Models/Work.cs
@ -0,0 +1,93 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Models;
+using System.Xml.Linq;
+
+namespace PlumbingRepairFileImplement.Models
+{
+    internal class Work : IWorkModel
+    {
+        public int Id { get; private set; }
+
+        public string WorkName { 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)>? _workComponents = null;
+
+        public Dictionary<int, (IComponentModel, int)> WorkComponents
+        {
+            get
+            {
+                if (_workComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _workComponents = Components.ToDictionary(x => x.Key, y => ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!, y.Value));
+                }
+                return _workComponents;
+            }
+        }
+
+        public static Work? Create(WorkBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Work()
+            {
+                Id = model.Id,
+                WorkName = model.WorkName,
+                Price = model.Price,
+                Components = model.WorkComponents.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+
+        public static Work? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Work()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                WorkName = element.Element("WorkName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components = element.Element("WorkComponents")!.Elements("WorkComponent")
+                                .ToDictionary(x => Convert.ToInt32(x.Element("Key")?.Value), x => Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+
+        public void Update(WorkBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            WorkName = model.WorkName;
+            Price = model.Price;
+            Components = model.WorkComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _workComponents = null;
+        }
+
+        public WorkViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkName = WorkName,
+            Price = Price,
+            WorkComponents = WorkComponents
+        };
+
+        public XElement GetXElement => new("Work",
+                        new XAttribute("Id", Id),
+                        new XElement("WorkName", WorkName),
+                        new XElement("Price", Price.ToString()),
+                        new XElement("WorkComponents", Components.Select(x => new XElement("WorkComponent",
+                                                                                        new XElement("Key", x.Key),
+                                                                                        new XElement("Value", x.Value)))
+                                                                        .ToArray()));
+    }
+}
--- a/PlumbingRepair/PlumbingRepairFileImplement/PlumbingRepairFileImplement.csproj
+++ b/PlumbingRepair/PlumbingRepairFileImplement/PlumbingRepairFileImplement.csproj
@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PlumbingRepairContracts\PlumbingRepairContracts.csproj" />
+    <ProjectReference Include="..\PlumbingRepairDataModels\PlumbingRepairDataModels.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="Implements\" />
+  </ItemGroup>
+
+</Project>
--- a/PlumbingRepair/PlumbingRepairView/PlumbingRepairView.csproj
+++ b/PlumbingRepair/PlumbingRepairView/PlumbingRepairView.csproj
@ -14,6 +14,7 @@

  <ItemGroup>
    <ProjectReference Include="..\PlumbingRepairBusinessLogic\PlumbingRepairBusinessLogic.csproj" />
+    <ProjectReference Include="..\PlumbingRepairFileImplement\PlumbingRepairFileImplement.csproj" />
    <ProjectReference Include="..\PlumbingRepairListImplement\PlumbingRepairListImplement.csproj" />
  </ItemGroup>

--- a/PlumbingRepair/PlumbingRepairView/Program.cs
+++ b/PlumbingRepair/PlumbingRepairView/Program.cs
@ -4,7 +4,7 @@ using NLog.Extensions.Logging;
 using PlumbingRepairBusinessLogic.BusinessLogics;
 using PlumbingRepairContracts.BusinessLogicsContracts;
 using PlumbingRepairContracts.StoragesContracts;
-using PlumbingRepairListImplement.Implements;
+using PlumbingRepairFileImplement.Implements;

 namespace PlumbingRepairView
 {