Fixed: Multiple series found during manual import prevents manual importing from folder

Fixes #3512

src/NzbDrone.Core/MediaFiles/EpisodeImport/Manual/ManualImportService.cs

@@ -105,11 +105,25 @@ namespace NzbDrone.Core.MediaFiles.EpisodeImport.Manual
         private List<ManualImportItem> ProcessFolder(string rootFolder, string baseFolder, string downloadId, int? seriesId, bool filterExistingFiles)
         {
             DownloadClientItem downloadClientItem = null;
+            Series series = null;
+
             var directoryInfo = new DirectoryInfo(baseFolder);
 
-            var series = seriesId.HasValue ?
+            if (seriesId.HasValue)
-                _seriesService.GetSeries(seriesId.Value) :
+            {
-                _parsingService.GetSeries(directoryInfo.Name);
+                series = _seriesService.GetSeries(seriesId.Value);
+            }
+            else
+            {
+                try
+                {
+                    series = _parsingService.GetSeries(directoryInfo.Name);
+                }
+                catch (MultipleSeriesFoundException e)
+                {
+                    _logger.Warn(e, "Unable to find series from title");
+                }
+            }
 
             if (downloadId.IsNotNullOrWhiteSpace())
             {

src/NzbDrone.Core/Tv/MultipleSeriesFoundException.cs

@@ -0,0 +1,11 @@
+using NzbDrone.Common.Exceptions;
+
+namespace NzbDrone.Core.Tv
+{
+    public class MultipleSeriesFoundException : NzbDroneException
+    {
+        public MultipleSeriesFoundException(string message, params object[] args) : base(message, args)
+        {
+        }
+    }
+}

src/NzbDrone.Core/Tv/SeriesRepository.cs

@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using NzbDrone.Core.Datastore;
+using NzbDrone.Core.Exceptions;
 using NzbDrone.Core.Messaging.Events;
 
 
@@ -36,17 +37,21 @@ namespace NzbDrone.Core.Tv
         {
             cleanTitle = cleanTitle.ToLowerInvariant();
 
-            return Query.Where(s => s.CleanTitle == cleanTitle)
+            var series = Query.Where(s => s.CleanTitle == cleanTitle)
-                        .SingleOrDefault();
+                                        .ToList();
+
+            return ReturnSingleSeriesOrThrow(series);
         }
 
         public Series FindByTitle(string cleanTitle, int year)
         {
             cleanTitle = cleanTitle.ToLowerInvariant();
 
-            return Query.Where(s => s.CleanTitle == cleanTitle)
+            var series = Query.Where(s => s.CleanTitle == cleanTitle)
                                         .AndWhere(s => s.Year == year)
-                        .SingleOrDefault();
+                                        .ToList();
+
+            return ReturnSingleSeriesOrThrow(series);
         }
 
         public List<Series> FindByTitleInexact(string cleanTitle)
@@ -72,5 +77,20 @@ namespace NzbDrone.Core.Tv
             return Query.Where(s => s.Path == path)
                         .FirstOrDefault();
         }
+
+        private Series ReturnSingleSeriesOrThrow(List<Series> series)
+        {
+            if (series.Count == 0)
+            {
+                return null;
+            }
+
+            if (series.Count == 1)
+            {
+                return series.First();
+            }
+
+            throw new MultipleSeriesFoundException("Expected one series, but found {0}. Matching series: {1}", series.Count, string.Join(",", series));
+        }
     }
 }