History Spec handles both blackhole and CDH disabled scenarios

Fixed: History will always be used to determine upgrade eligibility when CDH is disabled

src/NzbDrone.Core.Test/DecisionEngineTests/HistorySpecificationFixture.cs

@@ -4,6 +4,7 @@ using FizzWare.NBuilder;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
+using NzbDrone.Core.Configuration;
 using NzbDrone.Core.DecisionEngine.Specifications.RssSync;
 using NzbDrone.Core.History;
 using NzbDrone.Core.IndexerSearch.Definitions;
@@ -63,6 +64,10 @@ namespace NzbDrone.Core.Test.DecisionEngineTests
 
             _upgradableQuality = new QualityModel(Quality.SDTV, new Revision(version: 1));
             _notupgradableQuality = new QualityModel(Quality.HDTV1080p, new Revision(version: 2));
+
+            Mocker.GetMock<IConfigService>()
+                  .SetupGet(s => s.EnableCompletedDownloadHandling)
+                  .Returns(true);
         }
 
         private void GivenMostRecentForEpisode(int episodeId, string downloadId, QualityModel quality, DateTime date, HistoryEventType eventType)
@@ -71,6 +76,13 @@ namespace NzbDrone.Core.Test.DecisionEngineTests
                   .Returns(new History.History { DownloadId = downloadId, Quality = quality, Date = date, EventType = eventType });
         }
 
+        private void GivenCdhDisabled()
+        {
+            Mocker.GetMock<IConfigService>()
+                  .SetupGet(s => s.EnableCompletedDownloadHandling)
+                  .Returns(false);
+        }
+
         [Test]
         public void should_return_true_if_it_is_a_search()
         {
@@ -92,9 +104,9 @@ namespace NzbDrone.Core.Test.DecisionEngineTests
         }
 
         [Test]
-        public void should_return_true_if_latest_history_has_a_download_id()
+        public void should_return_true_if_latest_history_has_a_download_id_and_cdh_is_enabled()
         {
-            GivenMostRecentForEpisode(FIRST_EPISODE_ID, "test", _notupgradableQuality, DateTime.UtcNow, HistoryEventType.Grabbed);
+            GivenMostRecentForEpisode(FIRST_EPISODE_ID, "test", _upgradableQuality, DateTime.UtcNow, HistoryEventType.Grabbed);
             _upgradeHistory.IsSatisfiedBy(_parseResultMulti, null).Accepted.Should().BeTrue();
         }
 
@@ -174,5 +186,34 @@ namespace NzbDrone.Core.Test.DecisionEngineTests
             GivenMostRecentForEpisode(FIRST_EPISODE_ID, string.Empty, _notupgradableQuality, DateTime.UtcNow.AddHours(-1), HistoryEventType.Grabbed);
             _upgradeHistory.IsSatisfiedBy(_parseResultMulti, null).Accepted.Should().BeFalse();
         }
+
+        [Test]
+        public void should_return_false_if_latest_history_has_a_download_id_and_cdh_is_disabled()
+        {
+            GivenCdhDisabled();
+            GivenMostRecentForEpisode(FIRST_EPISODE_ID, "test", _upgradableQuality, DateTime.UtcNow.AddDays(-100), HistoryEventType.Grabbed);
+            _upgradeHistory.IsSatisfiedBy(_parseResultMulti, null).Accepted.Should().BeTrue();
+        }
+
+        [Test]
+        public void should_return_false_if_cutoff_already_met_and_cdh_is_disabled()
+        {
+            GivenCdhDisabled();
+            _fakeSeries.Profile = new Profile { Cutoff = Quality.WEBDL1080p, Items = Qualities.QualityFixture.GetDefaultQualities() };
+            _parseResultSingle.ParsedEpisodeInfo.Quality = new QualityModel(Quality.Bluray1080p, new Revision(version: 1));
+            _upgradableQuality = new QualityModel(Quality.WEBDL1080p, new Revision(version: 1));
+
+            GivenMostRecentForEpisode(FIRST_EPISODE_ID, "test", _upgradableQuality, DateTime.UtcNow.AddDays(-100), HistoryEventType.Grabbed);
+
+            _upgradeHistory.IsSatisfiedBy(_parseResultSingle, null).Accepted.Should().BeFalse();
+        }
+
+        [Test]
+        public void should_return_false_if_only_episode_is_not_upgradable_and_cdh_is_disabled()
+        {
+            GivenCdhDisabled();
+            GivenMostRecentForEpisode(FIRST_EPISODE_ID, "test", _notupgradableQuality, DateTime.UtcNow.AddDays(-100), HistoryEventType.Grabbed);
+            _upgradeHistory.IsSatisfiedBy(_parseResultSingle, null).Accepted.Should().BeFalse();
+        }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/RssSync/HistorySpecification.cs

@@ -1,6 +1,7 @@
 using System;
 using NLog;
 using NzbDrone.Common.Extensions;
+using NzbDrone.Core.Configuration;
 using NzbDrone.Core.History;
 using NzbDrone.Core.IndexerSearch.Definitions;
 using NzbDrone.Core.Parser.Model;
@@ -11,14 +12,17 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
     {
         private readonly IHistoryService _historyService;
         private readonly QualityUpgradableSpecification _qualityUpgradableSpecification;
+        private readonly IConfigService _configService;
         private readonly Logger _logger;
 
         public HistorySpecification(IHistoryService historyService,
                                            QualityUpgradableSpecification qualityUpgradableSpecification,
+                                           IConfigService configService,
                                            Logger logger)
         {
             _historyService = historyService;
             _qualityUpgradableSpecification = qualityUpgradableSpecification;
+            _configService = configService;
             _logger = logger;
         }
 
@@ -32,23 +36,44 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
                 return Decision.Accept();
             }
 
+            var cdhEnabled = _configService.EnableCompletedDownloadHandling;
+
             _logger.Debug("Performing history status check on report");
             foreach (var episode in subject.Episodes)
             {
                 _logger.Debug("Checking current status of episode [{0}] in history", episode.Id);
                 var mostRecent = _historyService.MostRecentForEpisode(episode.Id);
 
-                if (mostRecent != null && mostRecent.EventType == HistoryEventType.Grabbed && mostRecent.DownloadId.IsNullOrWhiteSpace() && mostRecent.Date.After(DateTime.UtcNow.AddHours(-12)))
+                if (mostRecent != null && mostRecent.EventType == HistoryEventType.Grabbed)
+                {
+                    var recentBlackhole = mostRecent.DownloadId.IsNullOrWhiteSpace() && mostRecent.Date.After(DateTime.UtcNow.AddHours(-12));
+                    var cutoffUnmet = _qualityUpgradableSpecification.CutoffNotMet(subject.Series.Profile, mostRecent.Quality, subject.ParsedEpisodeInfo.Quality);
+                    var upgradeable = _qualityUpgradableSpecification.IsUpgradable(subject.Series.Profile, mostRecent.Quality, subject.ParsedEpisodeInfo.Quality);
+
+                    if (!recentBlackhole && cdhEnabled)
+                    {
+                        continue;
+                    }
+
+                    if (!cutoffUnmet)
                     {
-                    if (!_qualityUpgradableSpecification.CutoffNotMet(subject.Series.Profile, mostRecent.Quality, subject.ParsedEpisodeInfo.Quality))
+                        if (recentBlackhole)
                         {
                             return Decision.Reject("Recent grab event in history already meets cutoff: {0}", mostRecent.Quality);  
                         }
 
-                    if (!_qualityUpgradableSpecification.IsUpgradable(subject.Series.Profile, mostRecent.Quality, subject.ParsedEpisodeInfo.Quality))
+                        return Decision.Reject("CDH is disabled and grab event in history already meets cutoff: {0}", mostRecent.Quality);
+                    }
+
+                    if (!upgradeable)
+                    {
+                        if (recentBlackhole)
                         {
                             return Decision.Reject("Recent grab event in history is of equal or higher quality: {0}", mostRecent.Quality);
                         }
+
+                        return Decision.Reject("CDH is disabled and grab event in history is of equal or higher quality: {0}", mostRecent.Quality);
+                    }
                 }
             }