1 files changed, 38 insertions, 0 deletions
diff --git a/RhSolutions.QueryModifiers/CouplingModifier.cs b/RhSolutions.QueryModifiers/CouplingModifier.cs
new file mode 100644
index 0000000..e8a1739
--- /dev/null
+++ b/RhSolutions.QueryModifiers/CouplingModifier.cs
@@ -0,0 +1,38 @@
+using System.Text.RegularExpressions;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http.Extensions;
+
+namespace RhSolutions.QueryModifiers;
+
+public class CouplingModifier : IProductQueryModifier
+{
+	private string pattern { get; } = @"([\b\D]|^)?(?<Diameter>16|20|25|32|40|50|63)([\b\D]|$)?";
+	public bool TryQueryModify(IQueryCollection collection, out QueryString queryString)
+	{
+		queryString = QueryString.Empty;
+		var query = collection["query"].ToString();
+		if (string.IsNullOrEmpty(query))
+		{
+			return false;
+		}
+		var matches = Regex.Matches(query, pattern);
+		if (matches.Count < 1)
+		{
+			return false;
+		}
+		else
+		{
+			QueryBuilder qb = new();
+			if (matches.Count < 2 || matches.Count > 1 && matches[0].Groups["Diameter"].Value == matches[1].Groups["Diameter"].Value)
+			{
+				qb.Add("query", $"Муфта соединительная равнопроходная {matches[0].Groups["Diameter"].Value}");
+			}
+			else 
+			{
+				qb.Add("query", $"Муфта соединительная переходная {matches[0].Groups["Diameter"].Value}-{matches[1].Groups["Diameter"].Value}");
+			}
+			queryString = qb.ToQueryString();
+			return true;
+		}
+	}
+}