New: Use NZBget's FinalDir is set by post-processing script

Closes #2006

src/NzbDrone.Core.Test/Download/DownloadClientTests/NzbgetTests/NzbgetFixture.cs

@@ -406,6 +406,26 @@ public void should_remap_storage_if_mounted()
             result.OutputPath.Should().Be(@"O:\mymount\Droned.S01E01.Pilot.1080p.WEB-DL-DRONE".AsOsAgnostic());
         }
 
+        [Test]
+        public void should_use_dest_dir_if_final_dir_is_not_set()
+        {
+            GivenQueue(null);
+            GivenHistory(_completed);
+
+            Subject.GetItems().First().OutputPath.Should().Be(_completed.DestDir);
+        }
+
+        [Test]
+        public void should_use_final_dir_when_set_instead_of_dest_dir()
+        {
+            _completed.FinalDir = "/remote/mount/tv2/Droned.S01E01.Pilot.1080p.WEB-DL-DRONE";
+
+            GivenQueue(null);
+            GivenHistory(_completed);
+
+            Subject.GetItems().First().OutputPath.Should().Be(_completed.FinalDir);
+        }
+
         [TestCase("11.0", false)]
         [TestCase("12.0", true)]
         [TestCase("11.0-b30ef0134", false)]

src/NzbDrone.Core/Download/Clients/Nzbget/Nzbget.cs

@@ -117,13 +117,14 @@ private IEnumerable<DownloadClientItem> GetHistory()
             foreach (var item in history)
             {
                 var droneParameter = item.Parameters.SingleOrDefault(p => p.Name == "drone");
-
                 var historyItem = new DownloadClientItem();
+                var itemDir = item.FinalDir ?? item.DestDir;
+
                 historyItem.DownloadClient = Definition.Name;
                 historyItem.DownloadId = droneParameter == null ? item.Id.ToString() : droneParameter.Value.ToString();
                 historyItem.Title = item.Name;
                 historyItem.TotalSize = MakeInt64(item.FileSizeHi, item.FileSizeLo);
-                historyItem.OutputPath = _remotePathMappingService.RemapRemoteToLocal(Settings.Host, new OsPath(item.DestDir));
+                historyItem.OutputPath = _remotePathMappingService.RemapRemoteToLocal(Settings.Host, new OsPath(itemDir));
                 historyItem.Category = item.Category;
                 historyItem.Message = $"PAR Status: {item.ParStatus} - Unpack Status: {item.UnpackStatus} - Move Status: {item.MoveStatus} - Script Status: {item.ScriptStatus} - Delete Status: {item.DeleteStatus} - Mark Status: {item.MarkStatus}";
                 historyItem.Status = DownloadItemStatus.Completed;

src/NzbDrone.Core/Download/Clients/Nzbget/NzbgetHistoryItem.cs

@@ -16,6 +16,7 @@ public class NzbgetHistoryItem
         public string DeleteStatus { get; set; }
         public string MarkStatus { get; set; }
         public string DestDir { get; set; }
+        public string FinalDir { get; set; }
         public List<NzbgetParameter> Parameters { get; set; }
     }
 }