Fix Shop-Repair relationship

AutoWorkshop.sln

@@ -13,6 +13,10 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AutoWorkshopBusinessLogic",
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AutoWorkshopListImplement", "AutoWorkshopImplement\AutoWorkshopListImplement.csproj", "{B564F5E8-2F14-4816-8481-1F9649F1F414}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AutoWorkshopFileImplement", "AutoWorkshopFileImplement\AutoWorkshopFileImplement.csproj", "{862B0F3D-1B88-45B8-9526-AD21A6D6FA81}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AutoWorkshopDatabaseImplement", "AutoWorkshopDatabaseImplement\AutoWorkshopDatabaseImplement.csproj", "{751668F7-01A3-43F0-BDD8-ABB3A8F5A955}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -39,6 +43,14 @@ Global
 		{B564F5E8-2F14-4816-8481-1F9649F1F414}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{B564F5E8-2F14-4816-8481-1F9649F1F414}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{B564F5E8-2F14-4816-8481-1F9649F1F414}.Release|Any CPU.Build.0 = Release|Any CPU
+		{862B0F3D-1B88-45B8-9526-AD21A6D6FA81}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{862B0F3D-1B88-45B8-9526-AD21A6D6FA81}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{862B0F3D-1B88-45B8-9526-AD21A6D6FA81}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{862B0F3D-1B88-45B8-9526-AD21A6D6FA81}.Release|Any CPU.Build.0 = Release|Any CPU
+		{751668F7-01A3-43F0-BDD8-ABB3A8F5A955}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{751668F7-01A3-43F0-BDD8-ABB3A8F5A955}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{751668F7-01A3-43F0-BDD8-ABB3A8F5A955}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{751668F7-01A3-43F0-BDD8-ABB3A8F5A955}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

AutoWorkshopBusinessLogic/BusinessLogics/OrderLogic.cs

@@ -13,11 +13,14 @@ namespace AutoWorkshopBusinessLogic.BusinessLogics
         private readonly ILogger _logger;
 
         private readonly IOrderStorage _orderStorage;
+        private readonly IShopStorage _shopStorage;
 
-        public OrderLogic(ILogger<RepairLogic> Logger, IOrderStorage OrderStorage)
+        public OrderLogic(ILogger<RepairLogic> Logger, IOrderStorage OrderStorage, IShopStorage ShopStorage)
         {
             _logger = Logger;
+            
             _orderStorage = OrderStorage;
+            _shopStorage = ShopStorage;
         }
 
         public List<OrderViewModel>? ReadList(OrderSearchModel? Model)
@@ -107,6 +110,23 @@ namespace AutoWorkshopBusinessLogic.BusinessLogics
 
         public bool DeliveryOrder(OrderBindingModel Model)
         {
+            var Order = _orderStorage.GetElement(new OrderSearchModel
+            {
+                Id = Model.Id
+            });
+
+            if (Order is null)
+                throw new ArgumentNullException(nameof(Order));
+
+            if (!_shopStorage.RestockingShops(new SupplyBindingModel
+            {
+                RepairId = Order.RepairId,
+                Count = Order.Count
+            }))
+            {
+                throw new ArgumentException("Недостаточно места");
+            }
+
             return ChangeOrderStatus(Model, OrderStatus.Delivered);
         }
 

AutoWorkshopBusinessLogic/BusinessLogics/ShopLogic.cs

@@ -102,7 +102,7 @@ namespace AutoWorkshopBusinessLogic.BusinessLogics
             if (Model.Count <= 0)
                 throw new ArgumentException("Количество ремонтов должно быть больше 0");
 
-            var Shop = _shopStorage.GetElement(new ShopSearchModel
+            ShopViewModel? Shop = _shopStorage.GetElement(new ShopSearchModel
             {
                 Id = Model.ShopId
             });
@@ -110,11 +110,18 @@ namespace AutoWorkshopBusinessLogic.BusinessLogics
             if (Shop == null)
                 throw new ArgumentException("Магазина не существует");
 
+            int CurrentRepairsNum = Shop.ShopRepairs.Select(x => x.Value.Item2).Sum();
+            if (Model.Count > Shop.RepairsMaxCount - CurrentRepairsNum)
+            {
+                _logger.LogWarning("Попытка добавить в магазин число элементов, большее RepairsMaxCount");
+                return false;
+            }
+
             if (Shop.ShopRepairs.ContainsKey(Model.RepairId))
             {
-                var OldValue = Shop.ShopRepairs[Model.RepairId];
-                OldValue.Item2 += Model.Count;
-                Shop.ShopRepairs[Model.RepairId] = OldValue;
+                var RepairsNum = Shop.ShopRepairs[Model.RepairId];
+                RepairsNum.Item2 += Model.Count;
+                Shop.ShopRepairs[Model.RepairId] = RepairsNum;
             }
             else
             {
@@ -124,11 +131,20 @@ namespace AutoWorkshopBusinessLogic.BusinessLogics
                 });
                 
                 if (Repair == null)
-                    throw new ArgumentException($"Поставка: Товар с id:{Model.RepairId} не найденн");
+                    throw new ArgumentException($"Поставка: Товар с id {Model.RepairId} не найден");
 
                 Shop.ShopRepairs.Add(Model.RepairId, (Repair, Model.Count));
             }
-           
+
+            _shopStorage.Update(new ShopBindingModel()
+            {
+                Id = Shop.Id,
+                ShopName = Shop.ShopName,
+                Address = Shop.Address,
+                OpeningDate = Shop.OpeningDate,
+                ShopRepairs = Shop.ShopRepairs,
+                RepairsMaxCount = Shop.RepairsMaxCount,
+            });
             return true;
         }
 
@@ -158,5 +174,21 @@ namespace AutoWorkshopBusinessLogic.BusinessLogics
                 throw new InvalidOperationException("Магазин с таким названием уже есть");
             }
         }
+
+        public bool MakeSell(SupplySearchModel Model)
+        {
+            if (!Model.RepairId.HasValue || !Model.Count.HasValue)
+                return false;
+
+            _logger.LogInformation("Поиск ремонтов во всех магазинах");
+            if (_shopStorage.Sell(Model))
+            {
+                _logger.LogInformation("Продажа выполнена успешно");
+                return true;
+            }
+            
+            _logger.LogInformation("Продажа не выполнена");
+            return false;
+        }
     }
 }

AutoWorkshopContracts/BindingModels/ShopBindingModel.cs

@@ -13,5 +13,7 @@ namespace AutoWorkshopContracts.BindingModels
         public DateTime OpeningDate { get; set; } = DateTime.Now;
         
         public Dictionary<int, (IRepairModel, int)> ShopRepairs { get; set; } = new();
+
+        public int RepairsMaxCount { get; set; }
     }
 }

AutoWorkshopContracts/BusinessLogicContracts/IShopLogic.cs

@@ -17,5 +17,7 @@ namespace AutoWorkshopContracts.BusinessLogicsContracts
         bool Delete(ShopBindingModel Model);
         
         bool MakeSupply(SupplyBindingModel Model);
+
+        bool MakeSell(SupplySearchModel Model);
     }
 }

AutoWorkshopContracts/SearchModels/SupplySearchModel.cs

@@ -0,0 +1,9 @@
+namespace AutoWorkshopContracts.SearchModels
+{
+    public class SupplySearchModel
+    {
+        public int? RepairId { get; set; }
+        
+        public int? Count { get; set; }
+    }
+}

AutoWorkshopContracts/StoragesContracts/IShopStorage.cs

@@ -17,5 +17,9 @@ namespace AutoWorkshopContracts.StoragesContracts
         ShopViewModel? Update(ShopBindingModel Model);
         
         ShopViewModel? Delete(ShopBindingModel Model);
+        
+        bool Sell(SupplySearchModel Model);
+        
+        bool RestockingShops(SupplyBindingModel Model);
     }
 }

AutoWorkshopContracts/ViewModels/ShopViewModel.cs

@@ -17,5 +17,8 @@ namespace AutoWorkshopContracts.ViewModels
         public DateTime OpeningDate { get; set; }
         
         public Dictionary<int, (IRepairModel, int)> ShopRepairs { get; set; } = new();
+
+        [DisplayName("Вместимость")]
+        public int RepairsMaxCount { get; set; }
     }
 }

AutoWorkshopDataModels/Models/IShopModel.cs

@@ -9,5 +9,7 @@
         DateTime OpeningDate { get; }
         
         Dictionary<int, (IRepairModel, int)> ShopRepairs { get; }
+
+        int RepairsMaxCount { get; }
     }
 }

AutoWorkshopDatabaseImplement/AutoWorkshopDatabase.cs

@@ -0,0 +1,33 @@
+using AutoWorkshopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace AutoWorkshopDatabaseImplement
+{
+    public class AutoWorkshopDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder OptionsBuilder)
+        {
+            if (OptionsBuilder.IsConfigured == false)
+            {
+                OptionsBuilder.UseNpgsql(@"Host=localhost;Port=5000;Database=AutoWorkshop_Hard;Username=postgres;Password=admin");
+            }
+            
+            base.OnConfiguring(OptionsBuilder);
+            
+            AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+            AppContext.SetSwitch("Npgsql.DisableDateTimeInfinityConversions", true);
+        }
+        
+        public virtual DbSet<Component> Components { set; get; }
+        
+        public virtual DbSet<Repair> Repairs { set; get; }
+        
+        public virtual DbSet<RepairComponent> RepairComponents { set; get; }
+        
+        public virtual DbSet<Order> Orders { set; get; }
+
+        public virtual DbSet<Shop> Shops { get; set; }
+        
+        public virtual DbSet<ShopRepair> ShopRepairs { get; set; }
+    }
+}

AutoWorkshopDatabaseImplement/AutoWorkshopDatabaseImplement.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.17" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.17">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="netcore-psql-util" Version="1.2.1" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.11" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\AutoWorkshopContracts\AutoWorkshopContracts.csproj" />
+    <ProjectReference Include="..\AutoWorkshopDataModels\AutoWorkshopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

AutoWorkshopDatabaseImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,82 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.StoragesContracts;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDatabaseImplement.Models;
+
+namespace AutoWorkshopDatabaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var Context = new AutoWorkshopDatabase();            
+            return Context.Components.Select(x => x.GetViewModel).ToList();
+        }
+        
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel Model)
+        {
+            if (string.IsNullOrEmpty(Model.ComponentName))
+                return new();
+            
+            using var Context = new AutoWorkshopDatabase();
+            return Context.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;
+
+            using var Context = new AutoWorkshopDatabase();
+            return Context.Components
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(Model.ComponentName) && x.ComponentName == Model.ComponentName) || 
+                (Model.Id.HasValue && x.Id == Model.Id))?.GetViewModel;
+        }
+        
+        public ComponentViewModel? Insert(ComponentBindingModel Model)
+        {
+            var NewComponent = Component.Create(Model);
+            
+            if (NewComponent == null)
+                return null;
+            
+            using var Context = new AutoWorkshopDatabase();
+            Context.Components.Add(NewComponent);
+            Context.SaveChanges();
+            
+            return NewComponent.GetViewModel;
+        }
+        
+        public ComponentViewModel? Update(ComponentBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            
+            var Component = Context.Components.FirstOrDefault(x => x.Id == Model.Id);
+            
+            if (Component == null)
+                return null;
+            
+            Component.Update(Model);
+            Context.SaveChanges();
+            
+            return Component.GetViewModel;
+        }
+        
+        public ComponentViewModel? Delete(ComponentBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            var Component = Context.Components.FirstOrDefault(rec => rec.Id == Model.Id);
+
+            if (Component == null)
+                return null;
+
+            Context.Components.Remove(Component);
+            Context.SaveChanges();
+            return Component.GetViewModel;
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,94 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.StoragesContracts;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace AutoWorkshopDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var Context = new AutoWorkshopDatabase();            
+            
+            return Context.Orders
+                .Include(x => x.Repair)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel Model)
+        {
+            if (!Model.Id.HasValue)
+                return new();
+
+            using var Context = new AutoWorkshopDatabase();
+            
+            return Context.Orders
+                .Include(x => x.Repair)
+                .Where(x => x.Id == Model.Id)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        
+        public OrderViewModel? GetElement(OrderSearchModel Model)
+        {
+            if (!Model.Id.HasValue)
+                return null;
+
+            using var Context = new AutoWorkshopDatabase();
+            
+            return Context.Orders
+                .Include(x => x.Repair)
+                .FirstOrDefault(x => Model.Id.HasValue && x.Id == Model.Id)?
+                .GetViewModel;
+        }
+        
+        public OrderViewModel? Insert(OrderBindingModel Model)
+        {            
+            if (Model == null)
+                return null;            
+
+            var NewOrder = Order.Create(Model);            
+            if (NewOrder == null)
+                return null;
+
+            using var Context = new AutoWorkshopDatabase();
+
+            Context.Orders.Add(NewOrder);
+            Context.SaveChanges();
+            
+            return Context.Orders.Include(x => x.Repair).FirstOrDefault(x => x.Id == NewOrder.Id)?.GetViewModel;
+        }
+        
+        public OrderViewModel? Update(OrderBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            
+            var Order = Context.Orders.FirstOrDefault(x => x.Id == Model.Id);
+            if (Order == null)
+                return null;
+
+            Order.Update(Model);
+            Context.SaveChanges();
+            
+            return Context.Orders.Include(x => x.Repair).FirstOrDefault(x => x.Id == Model.Id)?.GetViewModel;
+        }
+        
+        public OrderViewModel? Delete(OrderBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            var Order = Context.Orders.FirstOrDefault(rec => rec.Id == Model.Id);
+
+            if (Order == null)
+                return null;
+            
+            Context.Orders.Remove(Order);
+            Context.SaveChanges();
+            
+            return Order.GetViewModel;
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Implements/RepairStorage.cs

@@ -0,0 +1,109 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.StoragesContracts;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace AutoWorkshopDatabaseImplement.Implements
+{
+    public class RepairStorage : IRepairStorage
+    {
+        public List<RepairViewModel> GetFullList()
+        {
+            using var Context = new AutoWorkshopDatabase();
+            return Context.Repairs
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        
+        public List<RepairViewModel> GetFilteredList(RepairSearchModel Model)
+        {
+            if (string.IsNullOrEmpty(Model.RepairName))
+                return new();
+
+            using var Context = new AutoWorkshopDatabase();
+            
+            return Context.Repairs
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .Where(x => x.RepairName.Contains(Model.RepairName))
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+       
+        public RepairViewModel? GetElement(RepairSearchModel Model)
+        {
+            if (string.IsNullOrEmpty(Model.RepairName) && !Model.Id.HasValue)
+                return null;
+            
+            using var Context = new AutoWorkshopDatabase();
+            
+            return Context.Repairs
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(Model.RepairName) && x.RepairName == Model.RepairName) ||
+                (Model.Id.HasValue && x.Id == Model.Id))?
+                .GetViewModel;
+        }
+        
+        public RepairViewModel? Insert(RepairBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            
+            var NewRepair = Repair.Create(Context, Model);
+            if (NewRepair == null)
+                return null;
+
+            Context.Repairs.Add(NewRepair);
+            Context.SaveChanges();
+            
+            return NewRepair.GetViewModel;
+        }
+        
+        public RepairViewModel? Update(RepairBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+
+            using var Transaction = Context.Database.BeginTransaction();            
+            try
+            {
+                var Repair = Context.Repairs.FirstOrDefault(rec => rec.Id == Model.Id);
+                
+                if (Repair == null)
+                    return null;
+
+                Repair.Update(Model);
+                Context.SaveChanges();
+                Repair.UpdateComponents(Context, Model);
+                
+                Transaction.Commit();
+                return Repair.GetViewModel;
+            }
+            catch
+            {
+                Transaction.Rollback();
+                throw;
+            }
+        }
+        public RepairViewModel? Delete(RepairBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            
+            var Repair = Context.Repairs
+                .Include(x => x.Components)
+                .FirstOrDefault(rec => rec.Id == Model.Id);
+
+            if (Repair == null)
+                return null;
+
+            Context.Repairs.Remove(Repair);
+            Context.SaveChanges();
+            return Repair.GetViewModel;
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Implements/ShopStorage.cs

@@ -0,0 +1,221 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.StoragesContracts;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace AutoWorkshopDatabaseImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        public List<ShopViewModel> GetFullList()
+        {
+            using var Context = new AutoWorkshopDatabase();
+            return Context.Shops
+                .Include(x => x.Repairs)
+                .ThenInclude(x => x.Repair)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel Model)
+        {
+            if (string.IsNullOrEmpty(Model.ShopName))
+                return new();
+
+            using var Context = new AutoWorkshopDatabase();
+            
+            return Context.Shops
+                .Include(x => x.Repairs)
+                .ThenInclude(x => x.Repair)
+                .Where(x => x.ShopName.Contains(Model.ShopName))
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public ShopViewModel? GetElement(ShopSearchModel Model)
+        {
+            if (string.IsNullOrEmpty(Model.ShopName) && !Model.Id.HasValue)
+                return new();
+
+            using var Context = new AutoWorkshopDatabase();
+            
+            return Context.Shops
+                .Include(x => x.Repairs)
+                .ThenInclude(x => x.Repair)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(Model.ShopName) && x.ShopName == Model.ShopName) ||
+                    (Model.Id.HasValue && x.Id == Model.Id))?
+                .GetViewModel;
+        }
+
+        public ShopViewModel? Insert(ShopBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            
+            var NewShop = Shop.Create(Context, Model);
+            if (NewShop == null)
+                return null;
+
+            Context.Shops.Add(NewShop);
+            Context.SaveChanges();
+            
+            return NewShop.GetViewModel;
+        }
+
+        public ShopViewModel? Update(ShopBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+
+            using var Transaction = Context.Database.BeginTransaction();
+            try
+            {
+                var Shop = Context.Shops.FirstOrDefault(x => x.Id == Model.Id);
+                
+                if (Shop == null)
+                    return null;
+
+                Shop.Update(Model);
+                Context.SaveChanges();
+                Shop.UpdateRepairs(Context, Model);
+                
+                Transaction.Commit();
+                return Shop.GetViewModel;
+            }
+            catch
+            {
+                Transaction.Rollback();
+                throw;
+            }
+        }
+
+        public ShopViewModel? Delete(ShopBindingModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+
+            var Shop = Context.Shops
+                .Include(x => x.Repairs)
+                .FirstOrDefault(x => x.Id == Model.Id);
+
+            if (Shop == null)
+                return null;
+
+            Context.Shops.Remove(Shop);
+            Context.SaveChanges();
+            
+            return Shop.GetViewModel;
+        }        
+
+        public bool Sell(SupplySearchModel Model)
+        {
+            using var Context = new AutoWorkshopDatabase();
+            var Transaction = Context.Database.BeginTransaction();
+            
+            try
+            {
+                var ShopsWithDesiredRepair = Context.Shops
+                    .Include(x => x.Repairs)
+                    .ThenInclude(x => x.Repair)
+                    .ToList()
+                    .Where(x => x.ShopRepairs.ContainsKey(Model.RepairId.Value))
+                    .OrderByDescending(x => x.ShopRepairs[Model.RepairId.Value].Item2)
+                    .ToList();
+
+                foreach (var Shop in ShopsWithDesiredRepair)
+                {
+                    int Slack = Model.Count.Value - Shop.ShopRepairs[Model.RepairId.Value].Item2;
+                    
+                    if (Slack > 0)
+                    {
+                        Shop.ShopRepairs.Remove(Model.RepairId.Value);                        
+                        Shop.RepairsDictionatyUpdate(Context);
+                        Context.SaveChanges();
+                        
+                        Model.Count = Slack;
+                    }
+                    else
+                    {
+                        if (Slack == 0)
+                        {
+                            Shop.ShopRepairs.Remove(Model.RepairId.Value);
+                        }
+                        else
+                        {
+                            var RepairAndCount = Shop.ShopRepairs[Model.RepairId.Value];
+                            RepairAndCount.Item2 = -Slack;
+                            Shop.ShopRepairs[Model.RepairId.Value] = RepairAndCount;
+                        }
+
+                        Shop.RepairsDictionatyUpdate(Context);
+                        Transaction.Commit();
+                        
+                        return true;
+                    }
+                }
+                
+                Transaction.Rollback();
+                return false;
+            }
+            catch
+            {
+                Transaction.Rollback();
+                throw;
+            }
+        }
+
+		public bool RestockingShops(SupplyBindingModel Model)
+		{
+			using var Context = new AutoWorkshopDatabase();
+			var Transaction = Context.Database.BeginTransaction();
+
+			var Shops = Context.Shops
+				.Include(x => x.Repairs)
+				.ThenInclude(x => x.Repair)
+				.ToList()
+				.Where(x => x.RepairsMaxCount > x.ShopRepairs
+					.Select(x => x.Value.Item2).Sum())
+				.ToList();
+
+			try
+			{
+				foreach (Shop Shop in Shops)
+				{
+					int FreeSpaceNum = Shop.RepairsMaxCount - Shop.ShopRepairs.Select(x => x.Value.Item2).Sum();
+					
+                    int Refill = Math.Min(FreeSpaceNum, Model.Count);
+					Model.Count -= Refill;
+
+					if (Shop.ShopRepairs.ContainsKey(Model.RepairId))
+					{
+						var RepairAndCount = Shop.ShopRepairs[Model.RepairId];
+						RepairAndCount.Item2 += Refill;
+						Shop.ShopRepairs[Model.RepairId] = RepairAndCount;
+					}
+					else
+					{
+						var Repair = Context.Repairs.First(x => x.Id == Model.RepairId);
+						Shop.ShopRepairs.Add(Model.RepairId, (Repair, Refill));
+					}
+
+					Shop.RepairsDictionatyUpdate(Context);
+
+					if (Model.Count == 0)
+					{
+						Transaction.Commit();
+						return true;
+					}
+				}
+
+				Transaction.Rollback();
+				return false;
+			}
+			catch
+			{
+				Transaction.Rollback();
+				throw;
+			}
+		}
+	}
+}

AutoWorkshopDatabaseImplement/Migrations/20240417061857_Shops.Designer.cs

@@ -0,0 +1,248 @@
+// <auto-generated />
+using System;
+using AutoWorkshopDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace AutoWorkshopDatabaseImplement.Migrations
+{
+    [DbContext(typeof(AutoWorkshopDatabase))]
+    [Migration("20240417061857_Shops")]
+    partial class Shops
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.17")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("RepairName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Repairs");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("RepairComponents");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("OpeningDate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("RepairsMaxCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.ShopRepair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopRepairs");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Orders")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Component", "Component")
+                        .WithMany("RepairComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Components")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.ShopRepair", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany()
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Repairs")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+
+                    b.Navigation("Shop");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("RepairComponents");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Repairs");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Migrations/20240417061857_Shops.cs

@@ -0,0 +1,185 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace AutoWorkshopDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class Shops : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Components",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ComponentName = table.Column<string>(type: "text", nullable: false),
+                    Cost = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Components", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Repairs",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    RepairName = table.Column<string>(type: "text", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Repairs", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Shops",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ShopName = table.Column<string>(type: "text", nullable: false),
+                    Address = table.Column<string>(type: "text", nullable: false),
+                    OpeningDate = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
+                    RepairsMaxCount = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Shops", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    RepairId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false),
+                    Sum = table.Column<double>(type: "double precision", nullable: false),
+                    Status = table.Column<int>(type: "integer", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "timestamp without time zone", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Repairs_RepairId",
+                        column: x => x.RepairId,
+                        principalTable: "Repairs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "RepairComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    RepairId = table.Column<int>(type: "integer", nullable: false),
+                    ComponentId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_RepairComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_RepairComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_RepairComponents_Repairs_RepairId",
+                        column: x => x.RepairId,
+                        principalTable: "Repairs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ShopRepairs",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    RepairId = table.Column<int>(type: "integer", nullable: false),
+                    ShopId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ShopRepairs", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ShopRepairs_Repairs_RepairId",
+                        column: x => x.RepairId,
+                        principalTable: "Repairs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ShopRepairs_Shops_ShopId",
+                        column: x => x.ShopId,
+                        principalTable: "Shops",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_RepairId",
+                table: "Orders",
+                column: "RepairId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_RepairComponents_ComponentId",
+                table: "RepairComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_RepairComponents_RepairId",
+                table: "RepairComponents",
+                column: "RepairId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopRepairs_RepairId",
+                table: "ShopRepairs",
+                column: "RepairId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopRepairs_ShopId",
+                table: "ShopRepairs",
+                column: "ShopId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "RepairComponents");
+
+            migrationBuilder.DropTable(
+                name: "ShopRepairs");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Repairs");
+
+            migrationBuilder.DropTable(
+                name: "Shops");
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Migrations/20240505173724_Fix Shop-Repair relationship.Designer.cs

@@ -0,0 +1,250 @@
+// <auto-generated />
+using System;
+using AutoWorkshopDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace AutoWorkshopDatabaseImplement.Migrations
+{
+    [DbContext(typeof(AutoWorkshopDatabase))]
+    [Migration("20240505173724_Fix Shop-Repair relationship")]
+    partial class FixShopRepairrelationship
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.17")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("RepairName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Repairs");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("RepairComponents");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("OpeningDate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("RepairsMaxCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.ShopRepair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopRepairs");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Orders")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Component", "Component")
+                        .WithMany("RepairComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Components")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.ShopRepair", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Shops")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Repairs")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+
+                    b.Navigation("Shop");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("RepairComponents");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+
+                    b.Navigation("Shops");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Repairs");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Migrations/20240505173724_Fix Shop-Repair relationship.cs

@@ -0,0 +1,22 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace AutoWorkshopDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class FixShopRepairrelationship : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Migrations/AutoWorkshopDatabaseModelSnapshot.cs

@@ -0,0 +1,247 @@
+// <auto-generated />
+using System;
+using AutoWorkshopDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace AutoWorkshopDatabaseImplement.Migrations
+{
+    [DbContext(typeof(AutoWorkshopDatabase))]
+    partial class AutoWorkshopDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.17")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("RepairName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Repairs");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("RepairComponents");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("OpeningDate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("RepairsMaxCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.ShopRepair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopRepairs");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Orders")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Component", "Component")
+                        .WithMany("RepairComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Components")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.ShopRepair", b =>
+                {
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Shops")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AutoWorkshopDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Repairs")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+
+                    b.Navigation("Shop");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("RepairComponents");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+
+                    b.Navigation("Shops");
+                });
+
+            modelBuilder.Entity("AutoWorkshopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Repairs");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Models/Component.cs

@@ -0,0 +1,61 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace AutoWorkshopDatabaseImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        
+        [Required]
+        public string ComponentName { get; private set; } = string.Empty;
+        
+        [Required]
+        public double Cost { get; set; }
+        
+        [ForeignKey("ComponentId")]
+        public virtual List<RepairComponent> RepairComponents { get; set; } = new();
+        
+        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(ComponentViewModel Model)
+        {
+            return new Component
+            {
+                Id = Model.Id,
+                ComponentName = Model.ComponentName,
+                Cost = Model.Cost
+            };
+        }
+        
+        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
+        };
+    }
+}

AutoWorkshopDatabaseImplement/Models/Order.cs

@@ -0,0 +1,70 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDataModels.Enums;
+using AutoWorkshopDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+
+namespace AutoWorkshopDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        
+        [Required]
+        public int RepairId { get; private set; }
+
+        public virtual Repair Repair { get; set; }
+        
+        [Required]
+        public int Count { get; private set; }
+        
+        [Required]
+        public double Sum { get; private set; }
+        
+        [Required]
+        public OrderStatus Status { get; private set; } = OrderStatus.Undefined;
+        
+        [Required]
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+        
+        public DateTime? DateImplement { get; private set; }
+        
+        public static Order? Create(OrderBindingModel Model)
+        {
+            if (Model is 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 void Update(OrderBindingModel Model)
+        {
+            if (Model is null)
+                return;
+
+            Status = Model.Status;
+            DateImplement = Model.DateImplement;
+        }
+        
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            RepairId = RepairId,
+            RepairName = Repair.RepairName,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+    }
+}

AutoWorkshopDatabaseImplement/Models/Repair.cs

@@ -0,0 +1,109 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace AutoWorkshopDatabaseImplement.Models
+{
+    public class Repair : IRepairModel
+    {
+        public int Id { get; set; }
+        
+        [Required]
+        public string RepairName { get; set; } = string.Empty;
+        
+        [Required]
+        public double Price { get; set; }
+        
+        private Dictionary<int, (IComponentModel, int)>? _repairComponents = null;
+        
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> RepairComponents
+        {
+            get
+            {
+                if (_repairComponents == null)
+                {
+                    _repairComponents = Components.ToDictionary(RepComp => RepComp.ComponentId, RepComp => 
+                        (RepComp.Component as IComponentModel, RepComp.Count));
+                }
+                
+                return _repairComponents;
+            }
+        }
+        
+        [ForeignKey("RepairId")]
+        public virtual List<RepairComponent> Components { get; set; } = new();
+        
+        [ForeignKey("RepairId")]
+        public virtual List<Order> Orders { get; set; } = new();
+
+        [ForeignKey("RepairId")]
+        public virtual List<ShopRepair> Shops { get; set; } = new();
+
+        public static Repair Create(AutoWorkshopDatabase Context, RepairBindingModel Model)
+        {
+            return new Repair()
+            {
+                Id = Model.Id,
+                RepairName = Model.RepairName,
+                Price = Model.Price,
+                Components = Model.RepairComponents.Select(x => new RepairComponent
+                {
+                    Component = Context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        
+        public void Update(RepairBindingModel Model)
+        {
+            RepairName = Model.RepairName;
+            Price = Model.Price;
+        }
+        
+        public RepairViewModel GetViewModel => new()
+        {
+            Id = Id,
+            RepairName = RepairName,
+            Price = Price,
+            RepairComponents = RepairComponents
+        };
+        
+        public void UpdateComponents(AutoWorkshopDatabase Context, RepairBindingModel Model)
+        {
+            var RepairComponents = Context.RepairComponents.Where(rec => rec.RepairId == Model.Id).ToList();
+            
+            if (RepairComponents != null && RepairComponents.Count > 0)
+            {
+                Context.RepairComponents.RemoveRange(RepairComponents.Where(rec => !Model.RepairComponents.ContainsKey(rec.ComponentId)));
+                Context.SaveChanges();
+
+                foreach (var ComponentToUpdate in RepairComponents)
+                {
+                    ComponentToUpdate.Count = Model.RepairComponents[ComponentToUpdate.ComponentId].Item2;
+                    Model.RepairComponents.Remove(ComponentToUpdate.ComponentId);
+                }
+
+                Context.SaveChanges();
+            }
+
+            var Repair = Context.Repairs.First(x => x.Id == Id);
+            
+            foreach (var RepairComponent in Model.RepairComponents)
+            {
+                Context.RepairComponents.Add(new RepairComponent
+                {
+                    Repair = Repair,
+                    Component = Context.Components.First(x => x.Id == RepairComponent.Key),
+                    Count = RepairComponent.Value.Item2
+                });
+                
+                Context.SaveChanges();
+            }
+            
+            _repairComponents = null;
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Models/RepairComponent.cs

@@ -0,0 +1,22 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace AutoWorkshopDatabaseImplement.Models
+{
+    public class RepairComponent
+    {
+        public int Id { get; set; }
+        
+        [Required]
+        public int RepairId { get; set; }
+        
+        [Required]
+        public int ComponentId { get; set; }
+        
+        [Required]
+        public int Count { get; set; }
+        
+        public virtual Component Component { get; set; } = new();
+        
+        public virtual Repair Repair { get; set; } = new();
+    }
+}

AutoWorkshopDatabaseImplement/Models/Shop.cs

@@ -0,0 +1,131 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace AutoWorkshopDatabaseImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public string ShopName { get; set; } = string.Empty;
+
+        [Required]
+        public string Address { get; set; } = string.Empty;
+
+        [Required]
+        public DateTime OpeningDate { get; set; }
+
+        [Required]
+        public int RepairsMaxCount { get; set; }
+
+        [ForeignKey("ShopId")]
+        public List<ShopRepair> Repairs { get; set; } = new();
+
+        private Dictionary<int, (IRepairModel, int)>? _shopRepairs = null;
+
+        [NotMapped]
+        public Dictionary<int, (IRepairModel, int)> ShopRepairs
+        {
+            get
+            {
+                if (_shopRepairs == null)
+                {
+                    if (_shopRepairs == null)
+                    {
+                        _shopRepairs = Repairs.ToDictionary(ShopRep => ShopRep.RepairId, ShopRep => (ShopRep.Repair as IRepairModel, ShopRep.Count));
+                    }                    
+                    return _shopRepairs;
+                }
+                
+                return _shopRepairs;
+            }
+        }
+
+        public static Shop Create(AutoWorkshopDatabase Context, ShopBindingModel Model)
+        {
+            return new Shop()
+            {
+                Id = Model.Id,
+                ShopName = Model.ShopName,
+                Address = Model.Address,
+                OpeningDate = Model.OpeningDate,
+                Repairs = Model.ShopRepairs.Select(x => new ShopRepair
+                {
+                    Repair = Context.Repairs.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList(),
+                RepairsMaxCount = Model.RepairsMaxCount
+            };
+        }
+
+        public void Update(ShopBindingModel Model)
+        {
+            ShopName = Model.ShopName;
+            Address = Model.Address;
+            OpeningDate = Model.OpeningDate;
+            RepairsMaxCount = Model.RepairsMaxCount;
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            OpeningDate = OpeningDate,
+            ShopRepairs = ShopRepairs,
+            RepairsMaxCount = RepairsMaxCount
+        };
+
+        public void UpdateRepairs(AutoWorkshopDatabase Context, ShopBindingModel Model)
+        {
+            var ShopRepairs = Context.ShopRepairs
+                .Where(rec => rec.ShopId == Model.Id)
+                .ToList();
+            
+            if (ShopRepairs != null && ShopRepairs.Count > 0)
+            {
+                Context.ShopRepairs.RemoveRange(ShopRepairs.Where(rec => !Model.ShopRepairs.ContainsKey(rec.RepairId)));
+                Context.SaveChanges();
+
+				ShopRepairs = Context.ShopRepairs.Where(rec => rec.ShopId == Model.Id).ToList();
+
+				foreach (var RepairToUpdate in ShopRepairs)
+                {
+                    RepairToUpdate.Count = Model.ShopRepairs[RepairToUpdate.RepairId].Item2;
+                    Model.ShopRepairs.Remove(RepairToUpdate.RepairId);
+                }
+                
+                Context.SaveChanges();
+            }
+            
+            var Shop = Context.Shops.First(x => x.Id == Id);
+            
+            foreach (var ShopRepair in Model.ShopRepairs)
+            {
+                Context.ShopRepairs.Add(new ShopRepair
+                {
+                    Shop = Shop,
+                    Repair = Context.Repairs.First(x => x.Id == ShopRepair.Key),
+                    Count = ShopRepair.Value.Item2
+                });
+                
+                Context.SaveChanges();
+            }
+            
+            _shopRepairs = null;
+        }
+
+        public void RepairsDictionatyUpdate(AutoWorkshopDatabase Context)
+        {
+            UpdateRepairs(Context, new ShopBindingModel
+            {
+                Id = Id,
+                ShopRepairs = ShopRepairs
+            });
+        }
+    }
+}

AutoWorkshopDatabaseImplement/Models/ShopRepair.cs

@@ -0,0 +1,22 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace AutoWorkshopDatabaseImplement.Models
+{
+    public class ShopRepair
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public int RepairId { get; set; }
+
+        [Required]
+        public int ShopId { get; set; }
+
+        [Required]
+        public int Count { get; set; }
+
+        public virtual Shop Shop { get; set; } = new();
+
+        public virtual Repair Repair { get; set; } = new();
+    }
+}

AutoWorkshopFileImplement/AutoWorkshopFileImplement.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="..\AutoWorkshopContracts\AutoWorkshopContracts.csproj" />
+    <ProjectReference Include="..\AutoWorkshopDataModels\AutoWorkshopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

AutoWorkshopFileImplement/DataFileSingleton.cs

@@ -0,0 +1,61 @@
+using AutoWorkshopFileImplement.Models;
+using System.Xml.Linq;
+
+namespace AutoWorkshopFileImplement
+{
+    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";
+        private readonly string ShopFileName = "Shop.xml";
+
+        public List<Component> Components { get; private set; }        
+        public List<Order> Orders { get; private set; }        
+        public List<Repair> Repairs { get; private set; }
+        public List<Shop> Shops { get; private set; }
+
+        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)!)!;
+            Shops       = LoadData(ShopFileName, "Shop", x => Shop.Create(x)!)!;
+        }
+        
+        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);
+        public void SaveShops() => SaveData(Shops, ShopFileName, "Shops", x => x.GetXElement);
+
+        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);
+            }
+        }
+    }
+}

AutoWorkshopFileImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,82 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.StoragesContracts;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopFileImplement.Models;
+
+namespace AutoWorkshopFileImplement.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 Component = _source.Components.FirstOrDefault(x => x.Id == Model.Id);
+
+            if (Component == null)
+                return null;
+
+            _source.Components.Remove(Component);
+            _source.SaveComponents();
+                
+            return Component.GetViewModel;
+        }
+    }
+}

AutoWorkshopFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,96 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.StoragesContracts;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopFileImplement.Models;
+using System.Reflection;
+
+namespace AutoWorkshopFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton _source;
+        
+        public OrderStorage()
+        {
+            _source = DataFileSingleton.GetInstance();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            return _source.Orders.Select(x => AddRepairName(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 => AddRepairName(x.GetViewModel)).ToList();
+        }
+
+        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 AddRepairName(Element.GetViewModel);
+            }
+            
+            return null;
+        }
+        
+        public OrderViewModel? GetElement(OrderSearchModel Model)
+        {
+            if (!Model.Id.HasValue)
+                return null;
+            
+            var Order = _source.Orders.FirstOrDefault(x => (Model.Id.HasValue && x.Id == Model.Id));
+            
+            if (Order == null)
+                return null;
+
+            return AddRepairName(Order.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 AddRepairName(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 AddRepairName(Order.GetViewModel);
+        }
+
+        private OrderViewModel AddRepairName(OrderViewModel Model)
+        {
+            var SelectedRepair = _source.Repairs.FirstOrDefault(x => x.Id == Model.RepairId);
+
+            Model.RepairName = SelectedRepair?.RepairName ?? string.Empty;
+            return Model;
+        }
+    }
+}

AutoWorkshopFileImplement/Implements/RepairStorage.cs

@@ -0,0 +1,80 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.StoragesContracts;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopFileImplement.Models;
+
+namespace AutoWorkshopFileImplement.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)
+                return null;
+
+            _source.Repairs.Remove(Repair);
+            _source.SaveRepairs();
+                
+            return Repair.GetViewModel;
+        }
+    }
+}

AutoWorkshopFileImplement/Implements/ShopStorage.cs

@@ -0,0 +1,168 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.StoragesContracts;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopFileImplement.Models;
+
+namespace AutoWorkshopFileImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        private readonly DataFileSingleton _source;
+
+        public ShopStorage()
+        {
+            _source = DataFileSingleton.GetInstance();
+        }
+
+        public List<ShopViewModel> GetFullList()
+        {
+            return _source.Shops.Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel Model)
+        {
+            if (string.IsNullOrEmpty(Model.ShopName))
+                return new();
+
+            return _source.Shops
+                .Where(x => x.ShopName
+                .Contains(Model.ShopName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public ShopViewModel? GetElement(ShopSearchModel Model)
+        {
+            if (string.IsNullOrEmpty(Model.ShopName) && !Model.Id.HasValue)
+                return null;
+
+            return _source.Shops.FirstOrDefault(x =>
+                (!string.IsNullOrEmpty(Model.ShopName) && x.ShopName == Model.ShopName) ||
+                (Model.Id.HasValue && x.Id == Model.Id))?
+                .GetViewModel;
+        }
+
+        public ShopViewModel? Insert(ShopBindingModel Model)
+        {
+            Model.Id = _source.Shops.Count > 0 ? _source.Shops.Max(x => x.Id) + 1 : 1;
+            
+            var NewShop = Shop.Create(Model);
+            if (NewShop == null)
+                return null;
+            
+            _source.Shops.Add(NewShop);
+            _source.SaveShops();
+            
+            return NewShop.GetViewModel;
+        }
+
+        public ShopViewModel? Update(ShopBindingModel Model)
+        {
+            var Shop = _source.Shops.FirstOrDefault(x => x.Id == Model.Id);
+            if (Shop == null)
+                return null;
+
+            Shop.Update(Model);
+            _source.SaveShops();
+            
+            return Shop.GetViewModel;
+        }
+
+        public ShopViewModel? Delete(ShopBindingModel Model)
+        {
+            var Shop = _source.Shops.FirstOrDefault(x => x.Id == Model.Id);
+
+            if (Shop == null)
+                return null;
+
+            _source.Shops.Remove(Shop);
+            _source.SaveShops();
+            
+            return Shop.GetViewModel;
+        }
+
+        public bool Sell(SupplySearchModel Model)
+        {
+            if (Model == null || !Model.RepairId.HasValue || !Model.Count.HasValue)
+                return false;
+            
+            int TotalRepairsNum = _source.Shops
+                .Select(x => x.Repairs.ContainsKey(Model.RepairId.Value) ? x.Repairs[Model.RepairId.Value] : 0)
+                .Sum();
+            if (TotalRepairsNum < Model.Count)
+                return false;
+
+            var ShopsWithDesiredRepair = _source.Shops
+                .Where(x => x.Repairs.ContainsKey(Model.RepairId.Value))
+                .OrderByDescending(x => x.Repairs[Model.RepairId.Value])
+                .ToList();
+            
+            foreach (var Shop in ShopsWithDesiredRepair)
+            {
+                int Slack = Model.Count.Value - Shop.Repairs[Model.RepairId.Value];
+                
+                if (Slack > 0)
+                {
+                    Shop.Repairs.Remove(Model.RepairId.Value);
+                    Shop.RepairsUpdate();
+                    
+                    Model.Count = Slack;
+                }
+                else
+                {
+                    if (Slack == 0)
+                        Shop.Repairs.Remove(Model.RepairId.Value);
+                    else
+                        Shop.Repairs[Model.RepairId.Value] = -Slack;
+
+                    Shop.RepairsUpdate();
+                    _source.SaveShops();
+                    
+                    return true;
+                }
+            }
+            
+            _source.SaveShops();
+            return false;
+        }
+
+        public bool RestockingShops(SupplyBindingModel Model)
+        {
+            int TotalFreeSpaceNum = _source.Shops
+                .Select(x => x.RepairsMaxCount - x.ShopRepairs
+                    .Select(y => y.Value.Item2)
+                    .Sum())
+                .Sum();
+
+            if (TotalFreeSpaceNum < Model.Count)
+                return false;
+
+            foreach (Shop Shop in _source.Shops)
+            {
+                int FreeSpaceNum = Shop.RepairsMaxCount - Shop.ShopRepairs.Select(x => x.Value.Item2).Sum();
+                
+                if (FreeSpaceNum <= 0)
+                    continue;
+
+                FreeSpaceNum = Math.Min(FreeSpaceNum, Model.Count);
+                Model.Count -= FreeSpaceNum;
+                
+                if (Shop.Repairs.ContainsKey(Model.RepairId))
+                    Shop.Repairs[Model.RepairId] += FreeSpaceNum;
+                else
+                    Shop.Repairs.Add(Model.RepairId, FreeSpaceNum);
+
+                Shop.RepairsUpdate();
+                
+                if (Model.Count == 0)
+                {
+                    _source.SaveShops();
+                    return true;
+                }
+            }
+            
+            return false;
+        }
+    }
+}

AutoWorkshopFileImplement/Models/Component.cs

@@ -0,0 +1,65 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDataModels.Models;
+using System.Xml.Linq;
+
+namespace AutoWorkshopFileImplement.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 is null)
+                return null;
+
+            return new Component()
+            {
+                Id = Model.Id,
+                ComponentName = Model.ComponentName,
+                Cost = Model.Cost
+            };
+        }
+        
+        public static Component? Create(XElement Element)
+        {
+            if (Element is 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 is 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())
+        );
+    }
+}

AutoWorkshopFileImplement/Models/Order.cs

@@ -0,0 +1,90 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDataModels.Enums;
+using AutoWorkshopDataModels.Models;
+using System.Xml.Linq;
+
+namespace AutoWorkshopFileImplement.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 is 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 is 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),
+                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 is 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("Count", Count.ToString()),
+            new XElement("Sum", Sum.ToString()),
+            new XElement("Status", Status.ToString()),
+            new XElement("DateCreate", DateCreate.ToString()),
+            new XElement("DateImplement", DateImplement.ToString())
+        );
+    }
+}

AutoWorkshopFileImplement/Models/Repair.cs

@@ -0,0 +1,90 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDataModels.Models;
+using System.Xml.Linq;
+
+namespace AutoWorkshopFileImplement.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 is 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 is 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 is 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())
+        );
+    }
+}

AutoWorkshopFileImplement/Models/Shop.cs

@@ -0,0 +1,110 @@
+using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopContracts.ViewModels;
+using AutoWorkshopDataModels.Models;
+using System.Xml.Linq;
+
+namespace AutoWorkshopFileImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; private set; }
+        
+        public string ShopName { get; private set; } = string.Empty;
+        
+        public string Address { get; private set; } = string.Empty;
+        
+        public DateTime OpeningDate { get; private set; }
+        
+        public Dictionary<int, int> Repairs { get; private set; } = new();
+        
+        private Dictionary<int, (IRepairModel, int)>? _shopRepairs = null;
+
+        public Dictionary<int, (IRepairModel, int)> ShopRepairs
+        {
+            get
+            {
+                if (_shopRepairs == null)
+                {
+                    var Source = DataFileSingleton.GetInstance();
+                    _shopRepairs = Repairs.ToDictionary(x => x.Key, y => ((Source.Repairs.FirstOrDefault(z => z.Id == y.Key) as IRepairModel)!, y.Value));
+                }
+                
+                return _shopRepairs;
+            }
+        }
+
+        public int RepairsMaxCount { get; private set; }
+
+        public static Shop? Create(ShopBindingModel? Model)
+        {
+            if (Model == null)
+                return null;
+
+            return new Shop()
+            {
+                Id = Model.Id,
+                ShopName = Model.ShopName,
+                Address = Model.Address,
+                OpeningDate = Model.OpeningDate,
+                Repairs = Model.ShopRepairs.ToDictionary(x => x.Key, x => x.Value.Item2),
+                RepairsMaxCount = Model.RepairsMaxCount
+            };
+        }
+
+        public static Shop? Create(XElement Element)
+        {
+            if (Element == null)
+                return null;
+
+            return new Shop()
+            {
+                Id = Convert.ToInt32(Element.Attribute("Id")!.Value),
+                ShopName = Element.Element("ShopName")!.Value,
+                Address = Element.Element("Address")!.Value,
+                OpeningDate = Convert.ToDateTime(Element.Element("OpeningDate")!.Value),
+                Repairs = Element.Element("ShopRepairs")!.Elements("ShopRepair")!.ToDictionary(x => Convert.ToInt32(x.Element("Key")?.Value),
+                    x => Convert.ToInt32(x.Element("Value")?.Value)),
+                RepairsMaxCount = Convert.ToInt32(Element.Element("RepairsMaxCount")!.Value)
+            };
+        }
+
+        public void Update(ShopBindingModel? Model)
+        {
+            if (Model == null)
+                return;
+
+            ShopName = Model.ShopName;
+            Address = Model.Address;
+            OpeningDate = Model.OpeningDate;
+            RepairsMaxCount = Model.RepairsMaxCount;
+            Repairs = Model.ShopRepairs.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _shopRepairs = null;
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            OpeningDate = OpeningDate,
+            ShopRepairs = ShopRepairs,
+            RepairsMaxCount = RepairsMaxCount
+        };
+
+        public XElement GetXElement => new(
+            "Shop",
+            new XAttribute("Id", Id),
+            new XElement("ShopName", ShopName),
+            new XElement("Address", Address),
+            new XElement("OpeningDate", OpeningDate.ToString()),
+            new XElement("ShopRepairs", Repairs.Select(
+                x => new XElement("ShopRepair", new XElement("Key", x.Key), new XElement("Value", x.Value))).ToArray()),
+            new XElement("RepairsMaxCount", RepairsMaxCount.ToString())
+        );
+
+        public void RepairsUpdate()
+        {
+            _shopRepairs = null;
+        }
+    }
+}

AutoWorkshopImplement/Implements/ShopStorage.cs

@@ -108,5 +108,15 @@ namespace AutoWorkshopListImplement.Implements
             
             return null;
         }
+
+        public bool Sell(SupplySearchModel Model)
+        {
+            throw new NotImplementedException();
+        }
+
+        public bool RestockingShops(SupplyBindingModel Model)
+        {
+            throw new NotImplementedException();
+        }
     }
 }

AutoWorkshopImplement/Models/Shop.cs

@@ -16,6 +16,8 @@ namespace AutoWorkshopListImplement.Models
         
         public Dictionary<int, (IRepairModel, int)> ShopRepairs { get; private set; } = new();
 
+        public int RepairsMaxCount { get; private set; }
+
         public static Shop? Create(ShopBindingModel? Model)
         {
             if (Model is null)
@@ -26,7 +28,8 @@ namespace AutoWorkshopListImplement.Models
                 Id = Model.Id,
                 ShopName = Model.ShopName,
                 Address = Model.Address,
-                OpeningDate = Model.OpeningDate
+                OpeningDate = Model.OpeningDate,
+                RepairsMaxCount = Model.RepairsMaxCount,
             };
         }
 
@@ -38,6 +41,7 @@ namespace AutoWorkshopListImplement.Models
             ShopName = Model.ShopName;
             Address = Model.Address;
             OpeningDate = Model.OpeningDate;
+            RepairsMaxCount = Model.RepairsMaxCount;
         }
 
         public ShopViewModel GetViewModel => new()
@@ -46,7 +50,8 @@ namespace AutoWorkshopListImplement.Models
             ShopName = ShopName,
             Address = Address,
             OpeningDate = OpeningDate,
-            ShopRepairs = ShopRepairs
+            ShopRepairs = ShopRepairs,
+            RepairsMaxCount = RepairsMaxCount,
         };
     }
 }

AutoWorkshopView/AutoWorkshopView.csproj

@@ -10,7 +10,11 @@
 
   <ItemGroup>
 	<ProjectReference Include="..\AutoWorkshopBusinessLogic\AutoWorkshopBusinessLogic.csproj" />
-	<ProjectReference Include="..\AutoWorkshopImplement\AutoWorkshopListImplement.csproj" />
+	<ProjectReference Include="..\AutoWorkshopDatabaseImplement\AutoWorkshopDatabaseImplement.csproj" />
+	<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.17">
+	  <PrivateAssets>all</PrivateAssets>
+	  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+	</PackageReference>
     <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
     <PackageReference Include="NLog" Version="5.2.8" />
     <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />

AutoWorkshopView/Forms/Shop/FormSellRepair.Designer.cs

@@ -0,0 +1,125 @@
+namespace AutoWorkshopView.Forms.Shop
+{
+    partial class FormSellRepair
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            RepairLabel = new Label();
+            RepairComboBox = new ComboBox();
+            CountLabel = new Label();
+            CountTextBox = new TextBox();
+            SellButton = new Button();
+            CancelButton = new Button();
+            SuspendLayout();
+            // 
+            // RepairLabel
+            // 
+            RepairLabel.AutoSize = true;
+            RepairLabel.Location = new Point(10, 11);
+            RepairLabel.Name = "RepairLabel";
+            RepairLabel.Size = new Size(54, 15);
+            RepairLabel.TabIndex = 0;
+            RepairLabel.Text = "Ремонт: ";
+            // 
+            // RepairComboBox
+            // 
+            RepairComboBox.DropDownStyle = ComboBoxStyle.DropDownList;
+            RepairComboBox.FormattingEnabled = true;
+            RepairComboBox.Location = new Point(94, 8);
+            RepairComboBox.Margin = new Padding(3, 2, 3, 2);
+            RepairComboBox.Name = "RepairComboBox";
+            RepairComboBox.Size = new Size(217, 23);
+            RepairComboBox.TabIndex = 1;
+            // 
+            // CountLabel
+            // 
+            CountLabel.AutoSize = true;
+            CountLabel.Location = new Point(10, 41);
+            CountLabel.Name = "CountLabel";
+            CountLabel.Size = new Size(78, 15);
+            CountLabel.TabIndex = 2;
+            CountLabel.Text = "Количество: ";
+            // 
+            // CountTextBox
+            // 
+            CountTextBox.Location = new Point(94, 39);
+            CountTextBox.Margin = new Padding(3, 2, 3, 2);
+            CountTextBox.Name = "CountTextBox";
+            CountTextBox.Size = new Size(217, 23);
+            CountTextBox.TabIndex = 3;
+            // 
+            // SellButton
+            // 
+            SellButton.Location = new Point(117, 77);
+            SellButton.Margin = new Padding(3, 2, 3, 2);
+            SellButton.Name = "SellButton";
+            SellButton.Size = new Size(92, 30);
+            SellButton.TabIndex = 4;
+            SellButton.Text = "Продать";
+            SellButton.UseVisualStyleBackColor = true;
+            SellButton.Click += SellButton_Click;
+            // 
+            // CancelButton
+            // 
+            CancelButton.Location = new Point(215, 77);
+            CancelButton.Margin = new Padding(3, 2, 3, 2);
+            CancelButton.Name = "CancelButton";
+            CancelButton.Size = new Size(96, 30);
+            CancelButton.TabIndex = 5;
+            CancelButton.Text = "Отмена";
+            CancelButton.UseVisualStyleBackColor = true;
+            CancelButton.Click += ButtonCancel_Click;
+            // 
+            // FormSellRepair
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(325, 122);
+            Controls.Add(CancelButton);
+            Controls.Add(SellButton);
+            Controls.Add(CountTextBox);
+            Controls.Add(CountLabel);
+            Controls.Add(RepairComboBox);
+            Controls.Add(RepairLabel);
+            Margin = new Padding(3, 2, 3, 2);
+            Name = "FormSellRepair";
+            Text = "Продажа ремонтов";
+            Load += FormSellRepair_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label RepairLabel;
+        private ComboBox RepairComboBox;
+        private Label CountLabel;
+        private TextBox CountTextBox;
+        private Button SellButton;
+        private Button CancelButton;
+    }
+}

AutoWorkshopView/Forms/Shop/FormSellRepair.cs

@@ -0,0 +1,87 @@
+using AutoWorkshopContracts.BusinessLogicContracts;
+using AutoWorkshopContracts.BusinessLogicsContracts;
+using AutoWorkshopContracts.SearchModels;
+using AutoWorkshopContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace AutoWorkshopView.Forms.Shop
+{
+    public partial class FormSellRepair : Form
+    {
+        private readonly ILogger _logger;
+
+        private readonly IRepairLogic _repairLogic;
+        private readonly IShopLogic _shopLogic;
+
+        private List<RepairViewModel> _repairList = new List<RepairViewModel>();
+
+        public FormSellRepair(ILogger<FormSellRepair> Logger, IRepairLogic RepairLogic, IShopLogic ShopLogic)
+        {
+            InitializeComponent();
+
+            _logger = Logger;
+            _repairLogic = RepairLogic;
+            _shopLogic = ShopLogic;
+        }
+
+        private void FormSellRepair_Load(object sender, EventArgs e)
+        {
+            _repairList = _repairLogic.ReadList(null);
+
+            if (_repairList != null)
+            {
+                RepairComboBox.DisplayMember = "RepairName";
+                RepairComboBox.ValueMember = "Id";
+                RepairComboBox.DataSource = _repairList;
+                RepairComboBox.SelectedItem = null;
+
+                _logger.LogInformation("Загрузка ремонтов для продажи");
+            }
+        }
+
+        private void SellButton_Click(object sender, EventArgs e)
+        {
+            if (RepairComboBox.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите ремонт", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            _logger.LogInformation("Создание покупки");
+
+            try
+            {
+                bool Result = _shopLogic.MakeSell(new SupplySearchModel
+                {
+                    RepairId = Convert.ToInt32(RepairComboBox.SelectedValue),
+                    Count = Convert.ToInt32(CountTextBox.Text)
+                });
+
+                if (Result)
+                {
+                    _logger.LogInformation("Проверка пройдена, продажа проведена");
+                    MessageBox.Show("Продажа проведена", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
+
+                    DialogResult = DialogResult.OK;
+                    Close();
+                }
+                else
+                {
+                    _logger.LogInformation("Проверка не пройдена");
+                    MessageBox.Show("Продажа не может быть создана.", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка создания покупки");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

AutoWorkshopView/Forms/Shop/FormSellRepair.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

AutoWorkshopView/Forms/Shop/FormShop.Designer.cs

@@ -40,13 +40,16 @@
             CountColumn = new DataGridViewTextBoxColumn();
             OpeningDateLabel = new Label();
             OpenDateTimePicker = new DateTimePicker();
+            RepairsMaxCountLabel = new Label();
+            RepairsMaxCountNumericUp = new NumericUpDown();
             ((System.ComponentModel.ISupportInitialize)ViewDataGrid).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)RepairsMaxCountNumericUp).BeginInit();
             SuspendLayout();
             // 
             // NameLabel
             // 
             NameLabel.AutoSize = true;
-            NameLabel.Location = new Point(10, 12);
+            NameLabel.Location = new Point(9, 9);
             NameLabel.Name = "NameLabel";
             NameLabel.Size = new Size(65, 15);
             NameLabel.TabIndex = 0;
@@ -54,24 +57,24 @@
             // 
             // NameTextBox
             // 
-            NameTextBox.Location = new Point(112, 9);
+            NameTextBox.Location = new Point(105, 6);
             NameTextBox.Margin = new Padding(3, 2, 3, 2);
             NameTextBox.Name = "NameTextBox";
-            NameTextBox.Size = new Size(240, 23);
+            NameTextBox.Size = new Size(210, 23);
             NameTextBox.TabIndex = 1;
             // 
             // AddressTextBox
             // 
-            AddressTextBox.Location = new Point(112, 36);
+            AddressTextBox.Location = new Point(105, 33);
             AddressTextBox.Margin = new Padding(3, 2, 3, 2);
             AddressTextBox.Name = "AddressTextBox";
-            AddressTextBox.Size = new Size(240, 23);
+            AddressTextBox.Size = new Size(210, 23);
             AddressTextBox.TabIndex = 3;
             // 
             // AddressLabel
             // 
             AddressLabel.AutoSize = true;
-            AddressLabel.Location = new Point(12, 39);
+            AddressLabel.Location = new Point(10, 36);
             AddressLabel.Name = "AddressLabel";
             AddressLabel.Size = new Size(46, 15);
             AddressLabel.TabIndex = 2;
@@ -79,10 +82,10 @@
             // 
             // CancelButton
             // 
-            CancelButton.Location = new Point(395, 343);
+            CancelButton.Location = new Point(345, 302);
             CancelButton.Margin = new Padding(3, 2, 3, 2);
             CancelButton.Name = "CancelButton";
-            CancelButton.Size = new Size(114, 33);
+            CancelButton.Size = new Size(100, 25);
             CancelButton.TabIndex = 5;
             CancelButton.Text = "Отмена";
             CancelButton.UseVisualStyleBackColor = true;
@@ -90,10 +93,10 @@
             // 
             // SaveButton
             // 
-            SaveButton.Location = new Point(276, 343);
+            SaveButton.Location = new Point(239, 302);
             SaveButton.Margin = new Padding(3, 2, 3, 2);
             SaveButton.Name = "SaveButton";
-            SaveButton.Size = new Size(114, 33);
+            SaveButton.Size = new Size(100, 25);
             SaveButton.TabIndex = 6;
             SaveButton.Text = "Сохранить";
             SaveButton.UseVisualStyleBackColor = true;
@@ -106,14 +109,14 @@
             ViewDataGrid.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
             ViewDataGrid.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
             ViewDataGrid.Columns.AddRange(new DataGridViewColumn[] { IdColumn, RepairNameColumn, CountColumn });
-            ViewDataGrid.Location = new Point(10, 108);
+            ViewDataGrid.Location = new Point(9, 126);
             ViewDataGrid.Margin = new Padding(3, 2, 3, 2);
             ViewDataGrid.Name = "ViewDataGrid";
             ViewDataGrid.ReadOnly = true;
             ViewDataGrid.RowHeadersBorderStyle = DataGridViewHeaderBorderStyle.None;
             ViewDataGrid.RowHeadersWidthSizeMode = DataGridViewRowHeadersWidthSizeMode.AutoSizeToDisplayedHeaders;
             ViewDataGrid.RowTemplate.Height = 29;
-            ViewDataGrid.Size = new Size(498, 230);
+            ViewDataGrid.Size = new Size(436, 172);
             ViewDataGrid.TabIndex = 7;
             // 
             // IdColumn
@@ -141,25 +144,45 @@
             // OpeningDateLabel
             // 
             OpeningDateLabel.AutoSize = true;
-            OpeningDateLabel.Location = new Point(10, 69);
+            OpeningDateLabel.Location = new Point(9, 63);
             OpeningDateLabel.Name = "OpeningDateLabel";
-            OpeningDateLabel.Size = new Size(87, 15);
+            OpeningDateLabel.Size = new Size(90, 15);
             OpeningDateLabel.TabIndex = 8;
-            OpeningDateLabel.Text = "Дата открытия";
+            OpeningDateLabel.Text = "Дата открытия:";
             // 
             // OpenDateTimePicker
             // 
-            OpenDateTimePicker.Location = new Point(112, 63);
+            OpenDateTimePicker.Location = new Point(105, 60);
             OpenDateTimePicker.Margin = new Padding(3, 2, 3, 2);
             OpenDateTimePicker.Name = "OpenDateTimePicker";
-            OpenDateTimePicker.Size = new Size(240, 23);
+            OpenDateTimePicker.Size = new Size(210, 23);
             OpenDateTimePicker.TabIndex = 9;
             // 
+            // RepairsMaxCountLabel
+            // 
+            RepairsMaxCountLabel.AutoSize = true;
+            RepairsMaxCountLabel.Location = new Point(9, 90);
+            RepairsMaxCountLabel.Name = "RepairsMaxCountLabel";
+            RepairsMaxCountLabel.Size = new Size(83, 15);
+            RepairsMaxCountLabel.TabIndex = 10;
+            RepairsMaxCountLabel.Text = "Вместимость:";
+            // 
+            // RepairsMaxCountNumericUp
+            // 
+            RepairsMaxCountNumericUp.Location = new Point(105, 87);
+            RepairsMaxCountNumericUp.Margin = new Padding(3, 2, 3, 2);
+            RepairsMaxCountNumericUp.Maximum = new decimal(new int[] { 10000, 0, 0, 0 });
+            RepairsMaxCountNumericUp.Name = "RepairsMaxCountNumericUp";
+            RepairsMaxCountNumericUp.Size = new Size(210, 23);
+            RepairsMaxCountNumericUp.TabIndex = 11;
+            // 
             // FormShop
             // 
             AutoScaleDimensions = new SizeF(7F, 15F);
             AutoScaleMode = AutoScaleMode.Font;
-            ClientSize = new Size(519, 385);
+            ClientSize = new Size(460, 340);
+            Controls.Add(RepairsMaxCountNumericUp);
+            Controls.Add(RepairsMaxCountLabel);
             Controls.Add(OpenDateTimePicker);
             Controls.Add(OpeningDateLabel);
             Controls.Add(ViewDataGrid);
@@ -174,6 +197,7 @@
             Text = "Магазин";
             Load += FormShop_Load;
             ((System.ComponentModel.ISupportInitialize)ViewDataGrid).EndInit();
+            ((System.ComponentModel.ISupportInitialize)RepairsMaxCountNumericUp).EndInit();
             ResumeLayout(false);
             PerformLayout();
         }
@@ -192,5 +216,7 @@
         private DataGridViewTextBoxColumn CountColumn;
         private Label OpeningDateLabel;
         private DateTimePicker OpenDateTimePicker;
+        private Label RepairsMaxCountLabel;
+        private NumericUpDown RepairsMaxCountNumericUp;
     }
 }

AutoWorkshopView/Forms/Shop/FormShop.cs

@@ -3,6 +3,7 @@ using AutoWorkshopContracts.BusinessLogicsContracts;
 using AutoWorkshopContracts.SearchModels;
 using AutoWorkshopDataModels.Models;
 using Microsoft.Extensions.Logging;
+using System.Windows.Forms;
 
 namespace AutoWorkshopView.Forms.Shop
 {
@@ -45,6 +46,7 @@ namespace AutoWorkshopView.Forms.Shop
                         NameTextBox.Text = View.ShopName;
                         AddressTextBox.Text = View.Address;
                         OpenDateTimePicker.Value = View.OpeningDate;
+                        RepairsMaxCountNumericUp.Value = View.RepairsMaxCount;
                         _shopRepairs = View.ShopRepairs ?? new Dictionary<int, (IRepairModel, int)>();
                         
                         LoadData();
@@ -103,7 +105,8 @@ namespace AutoWorkshopView.Forms.Shop
                     Id = _id ?? 0,
                     ShopName = NameTextBox.Text,
                     Address = AddressTextBox.Text,
-                    OpeningDate = OpenDateTimePicker.Value
+                    OpeningDate = OpenDateTimePicker.Value,
+                    RepairsMaxCount = (int)RepairsMaxCountNumericUp.Value,
                 };
                 
                 var OperationResult = _id.HasValue ? _logic.Update(Model) : _logic.Create(Model);

AutoWorkshopView/MainForm.Designer.cs

@@ -35,6 +35,7 @@
             ShopsToolStripMenuItem = new ToolStripMenuItem();
             OperationToolStripMenuItem = new ToolStripMenuItem();
             TransactionToolStripMenuItem = new ToolStripMenuItem();
+            SaleToolStripMenuItem = new ToolStripMenuItem();
             DataGridView = new DataGridView();
             CreateOrderButton = new Button();
             TakeInWorkButton = new Button();
@@ -86,7 +87,7 @@
             // 
             // OperationToolStripMenuItem
             // 
-            OperationToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { TransactionToolStripMenuItem });
+            OperationToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { TransactionToolStripMenuItem, SaleToolStripMenuItem });
             OperationToolStripMenuItem.Name = "OperationToolStripMenuItem";
             OperationToolStripMenuItem.Size = new Size(75, 20);
             OperationToolStripMenuItem.Text = "Операции";
@@ -165,6 +166,13 @@
             RefreshButton.UseVisualStyleBackColor = true;
             RefreshButton.Click += RefreshButton_Click;
             // 
+            // SaleToolStripMenuItem
+            // 
+            SaleToolStripMenuItem.Name = "SaleToolStripMenuItem";
+            SaleToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
+            SaleToolStripMenuItem.Text = "Продажа";
+            SaleToolStripMenuItem.Click += new System.EventHandler(SellToolStripMenuItem_Click);
+            // 
             // MainForm
             // 
             AutoScaleDimensions = new SizeF(7F, 15F);
@@ -204,5 +212,6 @@
         private ToolStripMenuItem ShopsToolStripMenuItem;
         private ToolStripMenuItem OperationToolStripMenuItem;
         private ToolStripMenuItem TransactionToolStripMenuItem;
+        private ToolStripMenuItem SaleToolStripMenuItem;
     }
 }

AutoWorkshopView/MainForm.cs

@@ -10,6 +10,7 @@ namespace AutoWorkshopView
     {
         private readonly ILogger _logger;
         private readonly IOrderLogic _orderLogic;
+       
         public MainForm(ILogger<MainForm> Logger, IOrderLogic OrderLogic)
         {
             InitializeComponent();
@@ -185,5 +186,15 @@ namespace AutoWorkshopView
                 Form.ShowDialog();
             }
         }
+
+        private void SellToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var Service = Program.ServiceProvider?.GetService(typeof(FormSellRepair));
+            
+            if (Service is FormSellRepair Form)
+            {
+                Form.ShowDialog();
+            }
+        }
     }
 }

AutoWorkshopView/Program.cs

@@ -2,7 +2,7 @@ using AutoWorkshopBusinessLogic.BusinessLogics;
 using AutoWorkshopContracts.BusinessLogicContracts;
 using AutoWorkshopContracts.BusinessLogicsContracts;
 using AutoWorkshopContracts.StoragesContracts;
-using AutoWorkshopListImplement.Implements;
+using AutoWorkshopDatabaseImplement.Implements;
 using AutoWorkshopView.Forms;
 using AutoWorkshopView.Forms.Shop;
 using Microsoft.Extensions.DependencyInjection;
@@ -56,6 +56,7 @@ namespace AutoWorkshopView
             Services.AddTransient<FormShop>();
             Services.AddTransient<FormShops>();
             Services.AddTransient<FormCreateSupply>();
+            Services.AddTransient<FormSellRepair>();
         }
     }
 }