Add elobow modifier

RhSolutions.Api/Services/ElbowModifier.cs

@@ -0,0 +1,36 @@
+
+using System.Text.RegularExpressions;
+using Microsoft.AspNetCore.Http.Extensions;
+
+namespace RhSolutions.Api.Services
+{
+    public class ElbowModifier : IProductQueryModifier
+	{
+		private string diameterPattern { get; } = @"\b(16|20|25|32|40|50|63)\b";
+		private string anglePattern { get; } = @"\b(45|90)";
+		public bool TryQueryModify(IQueryCollection collection, out QueryString queryString)
+		{
+			queryString = QueryString.Empty;
+			var query = collection["query"].ToString();
+			if (string.IsNullOrEmpty(query))
+			{
+				return false;
+			}
+			var diameter = Regex.Match(query, diameterPattern);
+			if (diameter.Success)			
+			{
+				var angle = Regex.Match(query, anglePattern);
+				QueryBuilder qb = new()				
+				{
+					{"query", $"Угольник RAUTITAN -PLATINUM {(angle.Success ? angle.Captures.First() : 90)} {diameter.Captures.First()}"}
+				};
+				queryString = qb.ToQueryString();
+				return true;
+			}
+			else			
+			{
+				return false;
+			}
+		}
+	}
+}

RhSolutions.Api/Services/ProductQueryModifierFactory.cs

@@ -18,6 +18,8 @@ public class ProductQueryModifierFactory
 				return new AdapterScrewcapModifier();
 			case "Муфта соединительная":
 				return new CouplingModifier();
+			case "Угольник RAUTITAN":
+				return new ElbowModifier();
 			case "Flex":
 				return new FlexPipeQueryModifier();
 			case "Stabil":