Добавили реализацию интерфейсов, добавили контейнер

project/ProjectTourAgency/FormTourAgency.Designer.cs

@@ -1,6 +1,6 @@
 namespace ProjectTourAgency
 {
-    partial class Form1
+    partial class FormTourAgency
     {
         /// <summary>
         ///  Required designer variable.

project/ProjectTourAgency/FormTourAgency.cs

@@ -1,8 +1,8 @@
 namespace ProjectTourAgency
 {
-    public partial class Form1 : Form
+    public partial class FormTourAgency : Form
     {
-        public Form1()
+        public FormTourAgency()
         {
             InitializeComponent();
         }

project/ProjectTourAgency/Implementations/ClientRepository.cs

@@ -0,0 +1,34 @@
+using ProjectTourAgency.Enities;
+using ProjectTourAgency.Repositories;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectTourAgency.Implementations;
+
+public class ClientRepository : IClientRepository
+{
+    public void CreateClient(Client client)
+    {
+    }
+
+    public void DeleteClient(int id)
+    {
+    }
+
+    public Client ReadClientById(int id)
+    {
+        return Client.CreateEntity(0, string.Empty, DateTime.Now, string.Empty, 0);
+    }
+
+    public IEnumerable<Client> ReadClients()
+    {
+        return [];
+    }
+
+    public void UpdateClient(Client client)
+    {
+    }
+}

project/ProjectTourAgency/Implementations/DiscountRepository.cs

@@ -0,0 +1,36 @@
+using ProjectTourAgency.Enities;
+using ProjectTourAgency.Repositories;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectTourAgency.Implementations;
+
+public class DiscountRepository : IDiscountRepository
+{
+    public void CreateDiscount(Discount discount)
+    {
+
+    }
+
+    public void DeleteDiscount(int id)
+    {
+
+    }
+
+    public Discount ReadDiscountById(int id)
+    {
+        return Discount.CreateEntity(0, 0, 0, 0);
+    }
+
+    public IEnumerable<Discount> ReadDiscounts()
+    {
+        return [];
+    }
+
+    public void UpdateDiscount(Discount discount)
+    {
+    }
+}

project/ProjectTourAgency/Implementations/ReceiptRepository.cs

@@ -0,0 +1,21 @@
+using ProjectTourAgency.Enities;
+using ProjectTourAgency.Repositories;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectTourAgency.Implementations;
+
+public class ReceiptRepository : IReceiptRepository
+{
+    public void CreateReceipt(Receipt receipt)
+    {
+    }
+
+    public IEnumerable<Receipt> ReadReceipts(DateTime? dateFrom = null, DateTime? dateTo = null, int? clientId = null, int? tourId = null)
+    {
+        return [];
+    }
+}

project/ProjectTourAgency/Implementations/TourRepositiry.cs

@@ -0,0 +1,35 @@
+using ProjectTourAgency.Enities;
+using ProjectTourAgency.Repositories;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectTourAgency.Implementations;
+
+public class TourRepositiry : ITourRepositiry
+{
+    public void CreateTourt(Tour tour)
+    {
+
+    }
+
+    public void DeleteTour(int id)
+    {
+    }
+
+    public Tour ReadTourById(int id)
+    {
+        return Tour.CreateEntity(0, string.Empty, DateTime.Now, string.Empty, 0);
+    }
+
+    public IEnumerable<Tour> ReadTours()
+    {
+        return [];
+    }
+
+    public void UpdateTour(Tour tour)
+    {
+    }
+}

project/ProjectTourAgency/Program.cs

@@ -1,3 +1,7 @@
+using ProjectTourAgency.Implementations;
+using ProjectTourAgency.Repositories;
+using Unity;
+
 namespace ProjectTourAgency
 {
     internal static class Program
@@ -11,7 +15,19 @@ namespace ProjectTourAgency
             // To customize application configuration such as set high DPI settings or default font,
             // see https://aka.ms/applicationconfiguration.
             ApplicationConfiguration.Initialize();
-            Application.Run(new Form1());
+            Application.Run(CreateContainer().Resolve<FormTourAgency>());
+        }
+
+        private static IUnityContainer CreateContainer()
+        {
+            var container = new UnityContainer();
+
+            container.RegisterType<IClientRepository, ClientRepository>();
+            container.RegisterType<IDiscountRepository, DiscountRepository>();
+            container.RegisterType<IReceiptRepository, ReceiptRepository>();
+            container.RegisterType<ITourRepositiry, TourRepositiry>();
+
+            return container;
         }
     }
 }

project/ProjectTourAgency/ProjectTourAgency.csproj

@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <Folder Include="Implementations\" />
+    <PackageReference Include="Unity" Version="5.11.10" />
   </ItemGroup>
 
 </Project>

project/ProjectTourAgency/Repositories/IDiscountRepository.cs

@@ -11,7 +11,7 @@ public interface IDiscountRepository
 {
     IEnumerable<Discount> ReadDiscounts();
 
-    Client ReadDiscountById(int id);
+    Discount ReadDiscountById(int id);
 
     void CreateDiscount(Discount discount);
     void UpdateDiscount(Discount discount);

project/ProjectTourAgency/Repositories/ITourRepositiry.cs

@@ -11,9 +11,10 @@ public interface ITourRepositiry
 {
     IEnumerable<Tour> ReadTours();
 
-    Client ReadTourById(int id);
+    Tour ReadTourById(int id);
 
     void CreateTourt(Tour tour);
+
     void UpdateTour(Tour tour);
 
     void DeleteTour(int id);