Prefilter couchpoato results

src/Jackett/Utils/TorznabCapsUtil.cs

@@ -3,12 +3,15 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 
 namespace Jackett.Utils
 {
-    public static class TorznabCapsUtil
+    public class TorznabUtil
     {
+        static Regex reduceSpacesRegex = new Regex("\\s{2,}", RegexOptions.Compiled);
+
         public static TorznabCapabilities CreateDefaultTorznabTVCaps()
         {
             var caps = new TorznabCapabilities();
@@ -19,5 +22,32 @@ namespace Jackett.Utils
             });
             return caps;
         }
+
+        public static IEnumerable<ReleaseInfo> FilterResultsToTitle(IEnumerable<ReleaseInfo> results, string name, int year)
+        {
+            if (string.IsNullOrWhiteSpace(name))
+                return results;
+
+            name = CleanTitle(name);
+            var filteredResults = new List<ReleaseInfo>();
+            foreach (var result in results)
+            {
+                if (result.Title == null)
+                    continue;
+                if (CleanTitle(result.Title).Contains(name) &&
+                    (year ==0 || result.Title.Contains(year.ToString())))
+                {
+                    filteredResults.Add(result);
+                }
+            }
+
+            return filteredResults;
+        }
+
+        private static string CleanTitle(string title)
+        {
+            title = title.Replace(':', ' ').Replace('.', ' ').Replace('-', ' ').Replace('_', ' ').Replace('+', ' ');
+            return reduceSpacesRegex.Replace(title, " ").ToLowerInvariant();
+        }
     }
 }