From d26e188b66ee2eefb5e57912b151605e52bc6896 Mon Sep 17 00:00:00 2001
From: Sukhrob Ilyosbekov <suxrobgm@gmail.com>
Date: Thu, 7 Dec 2023 22:46:38 -0500
Subject: [PATCH] added enumerable extensions

---
 .../Extensions/EnumerableExtensions.cs        | 19 +++++++++++++-----
 .../Extensions/QueryableExtensions.cs         | 20 ++++++++++++++++++-
 2 files changed, 33 insertions(+), 6 deletions(-)

diff --git a/src/Core/Logistics.Domain/Extensions/EnumerableExtensions.cs b/src/Core/Logistics.Domain/Extensions/EnumerableExtensions.cs
index 77704e191..4e2fa798e 100644
--- a/src/Core/Logistics.Domain/Extensions/EnumerableExtensions.cs
+++ b/src/Core/Logistics.Domain/Extensions/EnumerableExtensions.cs
@@ -2,11 +2,20 @@
 
 public static class EnumerableExtensions
 {
-    public static IEnumerable<TSource> Sort<TSource>(
+    public static IOrderedEnumerable<TSource> OrderBy<TSource, TKey>(
         this IEnumerable<TSource> query,
-        Func<TSource, object> keySelector, 
-        bool descending)
+        Func<TSource, TKey> keySelector,
+        bool isDescendingOrder)
     {
-        return descending ? query.OrderByDescending(keySelector) : query.OrderBy(keySelector);
+        return isDescendingOrder ? query.OrderByDescending(keySelector) : query.OrderBy(keySelector);
     }
-}
\ No newline at end of file
+        
+    public static IEnumerable<TSource> ApplyPaging<TSource>(
+        this IEnumerable<TSource> query,
+        int page,
+        int pageSize)
+    {
+        return query.Skip((page - 1) * pageSize)
+            .Take(pageSize);
+    }
+}
diff --git a/src/Core/Logistics.Domain/Extensions/QueryableExtensions.cs b/src/Core/Logistics.Domain/Extensions/QueryableExtensions.cs
index 964ea7507..f787c74a8 100644
--- a/src/Core/Logistics.Domain/Extensions/QueryableExtensions.cs
+++ b/src/Core/Logistics.Domain/Extensions/QueryableExtensions.cs
@@ -1,4 +1,5 @@
-using Logistics.Domain.Core;
+using System.Linq.Expressions;
+using Logistics.Domain.Core;
 using Logistics.Domain.Specifications;
 
 namespace Logistics.Domain.Persistence;
@@ -31,4 +32,21 @@ public static class QueryableExtensions
 
         return query;
     }
+    
+    public static IQueryable<TSource> OrderBy<TSource, TKey>(
+        this IQueryable<TSource> query,
+        Expression<Func<TSource, TKey>> keySelector,
+        bool isDescendingOrder)
+    {
+        return isDescendingOrder ? query.OrderByDescending(keySelector) : query.OrderBy(keySelector);
+    }
+        
+    public static IQueryable<TSource> ApplyPaging<TSource>(
+        this IQueryable<TSource> query,
+        int page,
+        int pageSize)
+    {
+        return query.Skip((page - 1) * pageSize)
+            .Take(pageSize);
+    }
 }