Добавлены интерфейсы

project/ProjectTourAgency/ProjectTourAgency.csproj

@@ -8,4 +8,8 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Folder Include="Implementations\" />
+  </ItemGroup>
+
 </Project>

project/ProjectTourAgency/Repositories/IClientRepository.cs

@@ -0,0 +1,20 @@
+using ProjectTourAgency.Enities;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectTourAgency.Repositories;
+
+public interface IClientRepository
+{
+    IEnumerable<Client> ReadClients();
+
+    Client ReadClientById(int id);
+
+    void CreateClient(Client client);
+    void UpdateClient(Client client);
+
+    void DeleteClient(int id);
+}

project/ProjectTourAgency/Repositories/IDiscountRepository.cs

@@ -0,0 +1,20 @@
+using ProjectTourAgency.Enities;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectTourAgency.Repositories;
+
+public interface IDiscountRepository
+{
+    IEnumerable<Discount> ReadDiscounts();
+
+    Client ReadDiscountById(int id);
+
+    void CreateDiscount(Discount discount);
+    void UpdateDiscount(Discount discount);
+
+    void DeleteDiscount(int id);
+}

project/ProjectTourAgency/Repositories/IReceiptRepository.cs

@@ -0,0 +1,18 @@
+using ProjectTourAgency.Enities;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectTourAgency.Repositories;
+
+public interface IReceiptRepository
+{
+    IEnumerable<Receipt> ReadReceipts(DateTime? dateFrom = null,
+        DateTime? dateTo = null, int? clientId = null,int? tourId = null);
+
+
+    void CreateReceipt(Receipt receipt);
+
+}

project/ProjectTourAgency/Repositories/ITourRepositiry.cs

@@ -0,0 +1,20 @@
+using ProjectTourAgency.Enities;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectTourAgency.Repositories;
+
+public interface ITourRepositiry
+{
+    IEnumerable<Tour> ReadTours();
+
+    Client ReadTourById(int id);
+
+    void CreateTourt(Tour tour);
+    void UpdateTour(Tour tour);
+
+    void DeleteTour(int id);
+}