refactor: сервис пагинации сделал обобщенным, чтобы его можно было…

refactor: сервис пагинации сделал обобщенным, чтобы его можно было переиспользовать для товаров и т.д.

PhoneStore/Services/Abstractions/IPaginationService.cs

 using System.Linq;
 using System.Threading.Tasks;
-using PhoneStore.Models;
 
 namespace PhoneStore.Services.Abstractions
 {
-    public interface IPaginationService
+    public interface IPaginationService<T>
     {
-        Task<(IQueryable<User>, int)> GetABatchOfData(IQueryable<User> users, int page, int pageSize);
+        Task<(IQueryable<T>, int)> GetABatchOfData(IQueryable<T> elements, int page, int pageSize);
     }
 }
\ No newline at end of file

PhoneStore/Services/PaginationService.cs

 using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.EntityFrameworkCore;
-using PhoneStore.Models;
 using PhoneStore.Services.Abstractions;
 
 namespace PhoneStore.Services
 {
-    public class PaginationService : IPaginationService
+    public class PaginationService<T> : IPaginationService<T>
     {
-        public async Task<(IQueryable<User>, int)> GetABatchOfData(IQueryable<User> users, int page, int pageSize)
+        public async Task<(IQueryable<T>, int)> GetABatchOfData(IQueryable<T> elements, int page, int pageSize)
         {
-            int count = await users.CountAsync();
-            return (users.Skip((page - 1) * pageSize).Take(pageSize), count);
+            int count = await elements.CountAsync();
+            return (elements.Skip((page - 1) * pageSize).Take(pageSize), count);
         }
+
+        
     }
 }
\ No newline at end of file

PhoneStore/Services/UserService.cs

@@ -12,13 +12,13 @@ namespace PhoneStore.Services
         private readonly MobileContext _db;
         private readonly IUsersSortService _sortService;
         private readonly IUsersFilter _usersFilter;
-        private readonly IPaginationService _paginationService;
+        private readonly IPaginationService<User> _paginationService;
 
         public UserService(
             MobileContext db, 
             IUsersSortService sortService, 
             IUsersFilter usersFilter, 
-            IPaginationService paginationService)
+            IPaginationService<User> paginationService)
         {
             _db = db;
             _sortService = sortService;