1 files changed, 36 insertions, 0 deletions
diff --git a/RhSolutions.QueryModifiers/ElbowModifier.cs b/RhSolutions.QueryModifiers/ElbowModifier.cs
new file mode 100644
index 0000000..05ca9b4
--- /dev/null
+++ b/RhSolutions.QueryModifiers/ElbowModifier.cs
@@ -0,0 +1,36 @@
+using System.Text.RegularExpressions;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http.Extensions;
+
+namespace RhSolutions.QueryModifiers
+{
+    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;
+			}
+		}
+	}
+}