From 85f1d7c89f2a9cdd11488b3c09d9abac8bf7bffb Mon Sep 17 00:00:00 2001
From: Maksym Sadovnychyy <maksym.sadovnychyy@gmail.com>
Date: Tue, 31 Dec 2024 22:22:23 +0100
Subject: [PATCH] (feature): paged request lower case comparison

---
 .../Webapi/Models/PagedRequestTests.cs        |  2 ++
 src/MaksIT.Core/MaksIT.Core.csproj            |  2 +-
 src/MaksIT.Core/Webapi/Models/PagedRequest.cs | 19 +++++++++++++++++--
 3 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/src/MaksIT.Core.Tests/Webapi/Models/PagedRequestTests.cs b/src/MaksIT.Core.Tests/Webapi/Models/PagedRequestTests.cs
index 42ef44e..20f11b3 100644
--- a/src/MaksIT.Core.Tests/Webapi/Models/PagedRequestTests.cs
+++ b/src/MaksIT.Core.Tests/Webapi/Models/PagedRequestTests.cs
@@ -2,6 +2,8 @@
 using Xunit;
 using MaksIT.Core.Webapi.Models;  // Ensure namespace matches the actual namespace of PagedRequest
 
+namespace MaksIT.Core.Tests.Webapi.Models;
+
 public class PagedRequestTests {
 
   public class TestEntity {
diff --git a/src/MaksIT.Core/MaksIT.Core.csproj b/src/MaksIT.Core/MaksIT.Core.csproj
index 952b136..8fa1c20 100644
--- a/src/MaksIT.Core/MaksIT.Core.csproj
+++ b/src/MaksIT.Core/MaksIT.Core.csproj
@@ -8,7 +8,7 @@
 
     <!-- NuGet package metadata -->
     <PackageId>MaksIT.Core</PackageId>
-    <Version>1.3.0</Version>
+    <Version>1.3.1</Version>
     <Authors>Maksym Sadovnychyy</Authors>
     <Company>MAKS-IT</Company>
     <Product>MaksIT.Core</Product>
diff --git a/src/MaksIT.Core/Webapi/Models/PagedRequest.cs b/src/MaksIT.Core/Webapi/Models/PagedRequest.cs
index 1c3f500..db01453 100644
--- a/src/MaksIT.Core/Webapi/Models/PagedRequest.cs
+++ b/src/MaksIT.Core/Webapi/Models/PagedRequest.cs
@@ -1,5 +1,6 @@
 using System.Linq.Dynamic.Core;
 using System.Linq.Expressions;
+using System.Text.RegularExpressions;
 using MaksIT.Core.Abstractions.Webapi;
 
 public class PagedRequest : RequestModelBase {
@@ -14,12 +15,26 @@ public class PagedRequest : RequestModelBase {
     if (string.IsNullOrWhiteSpace(Filters))
       return x => true; // Returns an expression that doesn't filter anything.
 
-    // Parse the filter string into a dynamic lambda expression.
+    // Adjust Filters to make Contains, StartsWith, EndsWith, ==, and != case-insensitive
+    string adjustedFilters = Filters
+        .Replace(".Contains(", ".ToLower().Contains(")
+        .Replace(".StartsWith(", ".ToLower().StartsWith(")
+        .Replace(".EndsWith(", ".ToLower().EndsWith(")
+        .Replace("==", ".ToLower() ==")
+        .Replace("!=", ".ToLower() !=");
+
+    // Ensure values are also transformed to lowercase
+    adjustedFilters = Regex.Replace(adjustedFilters, "\"([^\"]+)\"", m => $"\"{m.Groups[1].Value.ToLower()}\"");
+
+    // Parse the adjusted filter string into a dynamic lambda expression
     var predicate = DynamicExpressionParser.ParseLambda<T, bool>(
-        new ParsingConfig(), false, Filters);
+        new ParsingConfig(), false, adjustedFilters);
+
     return predicate;
   }
 
+
+
   public Func<IQueryable<T>, IOrderedQueryable<T>> BuildSortExpression<T>() {
     if (string.IsNullOrWhiteSpace(SortBy))
       return q => (IOrderedQueryable<T>)q; // Cast to IOrderedQueryable