Add reason enum to decision engine rejections

src/NzbDrone.Core/DecisionEngine/Specifications/AcceptableSizeSpecification.cs

@@ -8,7 +8,7 @@ using NzbDrone.Core.Tv;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class AcceptableSizeSpecification : IDecisionEngineSpecification
+    public class AcceptableSizeSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IQualityDefinitionService _qualityDefinitionService;
         private readonly IEpisodeService _episodeService;
@@ -24,7 +24,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             _logger.Debug("Beginning size check for: {0}", subject);
 
@@ -33,13 +33,13 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
             if (subject.ParsedEpisodeInfo.Special)
             {
                 _logger.Debug("Special release found, skipping size check.");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             if (subject.Release.Size == 0)
             {
                 _logger.Debug("Release has unknown size, skipping size check");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var seriesRuntime = subject.Series.Runtime;
@@ -75,7 +75,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
             if (runtime == 0)
             {
                 _logger.Debug("Runtime of all episodes is 0, unable to validate size until it is available, rejecting");
-                return Decision.Reject("Runtime of all episodes is 0, unable to validate size until it is available");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.UnknownRuntime, "Runtime of all episodes is 0, unable to validate size until it is available");
             }
 
             var qualityDefinition = _qualityDefinitionService.Get(quality);
@@ -93,7 +93,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                     var runtimeMessage = subject.Episodes.Count == 1 ? $"{runtime}min" : $"{subject.Episodes.Count}x {runtime}min";
 
                     _logger.Debug("Item: {0}, Size: {1} is smaller than minimum allowed size ({2} bytes for {3}), rejecting.", subject, subject.Release.Size, minSize, runtimeMessage);
-                    return Decision.Reject("{0} is smaller than minimum allowed {1} (for {2})", subject.Release.Size.SizeSuffix(), minSize.SizeSuffix(), runtimeMessage);
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.BelowMinimumSize, "{0} is smaller than minimum allowed {1} (for {2})", subject.Release.Size.SizeSuffix(), minSize.SizeSuffix(), runtimeMessage);
                 }
             }
 
@@ -114,12 +114,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                     var runtimeMessage = subject.Episodes.Count == 1 ? $"{runtime}min" : $"{subject.Episodes.Count}x {runtime}min";
 
                     _logger.Debug("Item: {0}, Size: {1} is greater than maximum allowed size ({2} for {3}), rejecting", subject, subject.Release.Size, maxSize, runtimeMessage);
-                    return Decision.Reject("{0} is larger than maximum allowed {1} (for {2})", subject.Release.Size.SizeSuffix(), maxSize.SizeSuffix(), runtimeMessage);
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.AboveMaximumSize, "{0} is larger than maximum allowed {1} (for {2})", subject.Release.Size.SizeSuffix(), maxSize.SizeSuffix(), runtimeMessage);
                 }
             }
 
             _logger.Debug("Item: {0}, meets size constraints", subject);
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/AlreadyImportedSpecification.cs

@@ -9,7 +9,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class AlreadyImportedSpecification : IDecisionEngineSpecification
+    public class AlreadyImportedSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IHistoryService _historyService;
         private readonly IConfigService _configService;
@@ -27,14 +27,14 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Database;
         public RejectionType Type => RejectionType.Permanent;
 
-        public Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             var cdhEnabled = _configService.EnableCompletedDownloadHandling;
 
             if (!cdhEnabled)
             {
                 _logger.Debug("Skipping already imported check because CDH is disabled");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             _logger.Debug("Performing already imported check on report");
@@ -80,7 +80,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                     if (torrentInfo?.InfoHash != null && torrentInfo.InfoHash.ToUpper() == lastGrabbed.DownloadId)
                     {
                         _logger.Debug("Has same torrent hash as a grabbed and imported release");
-                        return Decision.Reject("Has same torrent hash as a grabbed and imported release");
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.AlreadyImportedSameHash, "Has same torrent hash as a grabbed and imported release");
                     }
                 }
 
@@ -90,11 +90,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 if (release.Title.Equals(lastGrabbed.SourceTitle, StringComparison.InvariantCultureIgnoreCase))
                 {
                     _logger.Debug("Has same release name as a grabbed and imported release");
-                    return Decision.Reject("Has same release name as a grabbed and imported release");
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.AlreadyImportedSameName, "Has same release name as a grabbed and imported release");
                 }
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/AnimeVersionUpgradeSpecification.cs

@@ -9,7 +9,7 @@ using NzbDrone.Core.Tv;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class AnimeVersionUpgradeSpecification : IDecisionEngineSpecification
+    public class AnimeVersionUpgradeSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly UpgradableSpecification _upgradableSpecification;
         private readonly IConfigService _configService;
@@ -25,13 +25,13 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             var releaseGroup = subject.ParsedEpisodeInfo.ReleaseGroup;
 
             if (subject.Series.SeriesType != SeriesTypes.Anime)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var downloadPropersAndRepacks = _configService.DownloadPropersAndRepacks;
@@ -39,7 +39,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
             if (downloadPropersAndRepacks == ProperDownloadTypes.DoNotPrefer)
             {
                 _logger.Debug("Version upgrades are not preferred, skipping check");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             foreach (var file in subject.Episodes.Where(c => c.EpisodeFileId != 0).Select(c => c.EpisodeFile.Value))
@@ -54,24 +54,24 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                     if (file.ReleaseGroup.IsNullOrWhiteSpace())
                     {
                         _logger.Debug("Unable to compare release group, existing file's release group is unknown");
-                        return Decision.Reject("Existing release group is unknown");
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.UnknownReleaseGroup, "Existing release group is unknown");
                     }
 
                     if (releaseGroup.IsNullOrWhiteSpace())
                     {
                         _logger.Debug("Unable to compare release group, release's release group is unknown");
-                        return Decision.Reject("Release group is unknown");
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.UnknownReleaseGroup, "Release group is unknown");
                     }
 
                     if (file.ReleaseGroup != releaseGroup)
                     {
                         _logger.Debug("Existing Release group is: {0} - release's release group is: {1}", file.ReleaseGroup, releaseGroup);
-                        return Decision.Reject("{0} does not match existing release group {1}", releaseGroup, file.ReleaseGroup);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.ReleaseGroupDoesNotMatch, "{0} does not match existing release group {1}", releaseGroup, file.ReleaseGroup);
                     }
                 }
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/BlockedIndexerSpecification.cs

@@ -9,7 +9,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class BlockedIndexerSpecification : IDecisionEngineSpecification
+    public class BlockedIndexerSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IIndexerStatusService _indexerStatusService;
         private readonly Logger _logger;
@@ -27,15 +27,15 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Database;
         public RejectionType Type => RejectionType.Temporary;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             var status = _blockedIndexerCache.Find(subject.Release.IndexerId.ToString());
             if (status != null)
             {
-                return Decision.Reject($"Indexer {subject.Release.Indexer} is blocked till {status.DisabledTill} due to failures, cannot grab release.");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.IndexerDisabled, $"Indexer {subject.Release.Indexer} is blocked till {status.DisabledTill} due to failures, cannot grab release.");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
 
         private IDictionary<string, IndexerStatus> FetchBlockedIndexer()

src/NzbDrone.Core/DecisionEngine/Specifications/BlocklistSpecification.cs

@@ -5,7 +5,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class BlocklistSpecification : IDecisionEngineSpecification
+    public class BlocklistSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IBlocklistService _blocklistService;
         private readonly Logger _logger;
@@ -19,15 +19,15 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Database;
         public RejectionType Type => RejectionType.Permanent;
 
-        public Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (_blocklistService.Blocklisted(subject.Series.Id, subject.Release))
             {
                 _logger.Debug("{0} is blocklisted, rejecting.", subject.Release.Title);
-                return Decision.Reject("Release is blocklisted");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.Blocklisted, "Release is blocklisted");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/CustomFormatAllowedByProfileSpecification.cs

@@ -4,22 +4,22 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class CustomFormatAllowedbyProfileSpecification : IDecisionEngineSpecification
+    public class CustomFormatAllowedbyProfileSpecification : IDownloadDecisionEngineSpecification
     {
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             var minScore = subject.Series.QualityProfile.Value.MinFormatScore;
             var score = subject.CustomFormatScore;
 
             if (score < minScore)
             {
-                return Decision.Reject("Custom Formats {0} have score {1} below Series profile minimum {2}", subject.CustomFormats.ConcatToString(), score, minScore);
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.CustomFormatMinimumScore, "Custom Formats {0} have score {1} below Series profile minimum {2}", subject.CustomFormats.ConcatToString(), score, minScore);
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/FreeSpaceSpecification.cs

@@ -8,7 +8,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class FreeSpaceSpecification : IDecisionEngineSpecification
+    public class FreeSpaceSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IConfigService _configService;
         private readonly IDiskProvider _diskProvider;
@@ -24,12 +24,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (_configService.SkipFreeSpaceCheckWhenImporting)
             {
                 _logger.Debug("Skipping free space check");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var size = subject.Release.Size;
@@ -49,7 +49,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
             {
                 _logger.Debug("Unable to get available space for {0}. Skipping", path);
 
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var minimumSpace = _configService.MinimumFreeSpaceWhenImporting.Megabytes();
@@ -60,7 +60,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 var message = "Importing after download will exceed available disk space";
 
                 _logger.Debug(message);
-                return Decision.Reject(message);
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.MinimumFreeSpace, message);
             }
 
             if (remainingSpace < minimumSpace)
@@ -68,10 +68,10 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 var message = $"Not enough free space ({minimumSpace.SizeSuffix()}) to import after download: {remainingSpace.SizeSuffix()}. (Settings: Media Management: Minimum Free Space)";
 
                 _logger.Debug(message);
-                return Decision.Reject(message);
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.MinimumFreeSpace, message);
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/FullSeasonSpecification.cs

@@ -7,7 +7,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class FullSeasonSpecification : IDecisionEngineSpecification
+    public class FullSeasonSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
 
@@ -19,7 +19,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (subject.ParsedEpisodeInfo.FullSeason)
             {
@@ -28,11 +28,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 if (subject.Episodes.Any(e => !e.AirDateUtc.HasValue || e.AirDateUtc.Value.After(DateTime.UtcNow.AddHours(24))))
                 {
                     _logger.Debug("Full season release {0} rejected. All episodes haven't aired yet.", subject.Release.Title);
-                    return Decision.Reject("Full season release rejected. All episodes haven't aired yet.");
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.FullSeasonNotAired, "Full season release rejected. All episodes haven't aired yet.");
                 }
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/IDownloadDecisionEngineSpecification.cs

@@ -3,12 +3,12 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public interface IDecisionEngineSpecification
+    public interface IDownloadDecisionEngineSpecification
     {
         RejectionType Type { get; }
 
         SpecificationPriority Priority { get; }
 
-        Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria);
+        DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria);
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/MaximumSizeSpecification.cs

@@ -6,7 +6,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class MaximumSizeSpecification : IDecisionEngineSpecification
+    public class MaximumSizeSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IConfigService _configService;
         private readonly Logger _logger;
@@ -20,7 +20,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             var size = subject.Release.Size;
             var maximumSize = _configService.MaximumSize.Megabytes();
@@ -28,13 +28,13 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
             if (maximumSize == 0)
             {
                 _logger.Debug("Maximum size is not set.");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             if (size == 0)
             {
                 _logger.Debug("Release has unknown size, skipping size check.");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             _logger.Debug("Checking if release meets maximum size requirements. {0}", size.SizeSuffix());
@@ -44,10 +44,10 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 var message = $"{size.SizeSuffix()} is too big, maximum size is {maximumSize.SizeSuffix()} (Settings->Indexers->Maximum Size)";
 
                 _logger.Debug(message);
-                return Decision.Reject(message);
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.MaximumSizeExceeded, message);
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/MinimumAgeSpecification.cs

@@ -6,7 +6,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class MinimumAgeSpecification : IDecisionEngineSpecification
+    public class MinimumAgeSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IConfigService _configService;
         private readonly Logger _logger;
@@ -20,12 +20,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Temporary;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (subject.Release.DownloadProtocol != Indexers.DownloadProtocol.Usenet)
             {
                 _logger.Debug("Not checking minimum age requirement for non-usenet report");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var age = subject.Release.AgeMinutes;
@@ -35,7 +35,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
             if (minimumAge == 0)
             {
                 _logger.Debug("Minimum age is not set.");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             _logger.Debug("Checking if report meets minimum age requirements. {0}", ageRounded);
@@ -43,12 +43,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
             if (age < minimumAge)
             {
                 _logger.Debug("Only {0} minutes old, minimum age is {1} minutes", ageRounded, minimumAge);
-                return Decision.Reject("Only {0} minutes old, minimum age is {1} minutes", ageRounded, minimumAge);
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.MinimumAge, "Only {0} minutes old, minimum age is {1} minutes", ageRounded, minimumAge);
             }
 
             _logger.Debug("Release is {0} minutes old, greater than minimum age of {1} minutes", ageRounded, minimumAge);
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/MultiSeasonSpecification.cs

@@ -4,7 +4,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class MultiSeasonSpecification : IDecisionEngineSpecification
+    public class MultiSeasonSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
 
@@ -16,15 +16,15 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (subject.ParsedEpisodeInfo.IsMultiSeason)
             {
                 _logger.Debug("Multi-season release {0} rejected. Not supported", subject.Release.Title);
-                return Decision.Reject("Multi-season releases are not supported");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.MultiSeason, "Multi-season releases are not supported");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/NotSampleSpecification.cs

@@ -5,7 +5,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class NotSampleSpecification : IDecisionEngineSpecification
+    public class NotSampleSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
 
@@ -17,15 +17,15 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
             _logger = logger;
         }
 
-        public Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (subject.Release.Title.ToLower().Contains("sample") && subject.Release.Size < 70.Megabytes())
             {
                 _logger.Debug("Sample release, rejecting.");
-                return Decision.Reject("Sample");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.Sample, "Sample");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/ProtocolSpecification.cs

@@ -6,7 +6,7 @@ using NzbDrone.Core.Profiles.Delay;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class ProtocolSpecification : IDecisionEngineSpecification
+    public class ProtocolSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IDelayProfileService _delayProfileService;
         private readonly Logger _logger;
@@ -21,23 +21,23 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             var delayProfile = _delayProfileService.BestForTags(subject.Series.Tags);
 
             if (subject.Release.DownloadProtocol == DownloadProtocol.Usenet && !delayProfile.EnableUsenet)
             {
                 _logger.Debug("[{0}] Usenet is not enabled for this series", subject.Release.Title);
-                return Decision.Reject("Usenet is not enabled for this series");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.ProtocolDisabled, "Usenet is not enabled for this series");
             }
 
             if (subject.Release.DownloadProtocol == DownloadProtocol.Torrent && !delayProfile.EnableTorrent)
             {
                 _logger.Debug("[{0}] Torrent is not enabled for this series", subject.Release.Title);
-                return Decision.Reject("Torrent is not enabled for this series");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.ProtocolDisabled, "Torrent is not enabled for this series");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/QualityAllowedByProfileSpecification.cs

@@ -4,7 +4,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class QualityAllowedByProfileSpecification : IDecisionEngineSpecification
+    public class QualityAllowedByProfileSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
 
@@ -16,7 +16,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             _logger.Debug("Checking if report meets quality requirements. {0}", subject.ParsedEpisodeInfo.Quality);
 
@@ -27,10 +27,10 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
             if (!qualityOrGroup.Allowed)
             {
                 _logger.Debug("Quality {0} rejected by Series' quality profile", subject.ParsedEpisodeInfo.Quality);
-                return Decision.Reject("{0} is not wanted in profile", subject.ParsedEpisodeInfo.Quality.Quality);
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.QualityNotWanted, "{0} is not wanted in profile", subject.ParsedEpisodeInfo.Quality.Quality);
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/QueueSpecification.cs

@@ -10,7 +10,7 @@ using NzbDrone.Core.Queue;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class QueueSpecification : IDecisionEngineSpecification
+    public class QueueSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IQueueService _queueService;
         private readonly UpgradableSpecification _upgradableSpecification;
@@ -34,7 +34,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             var queue = _queueService.GetQueue();
             var matchingEpisode = queue.Where(q => q.RemoteEpisode?.Series != null &&
@@ -65,7 +65,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                     queuedItemCustomFormats,
                     subject.ParsedEpisodeInfo.Quality))
                 {
-                    return Decision.Reject("Release in queue already meets cutoff: {0}", remoteEpisode.ParsedEpisodeInfo.Quality);
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.QueueCutoffMet, "Release in queue already meets cutoff: {0}", remoteEpisode.ParsedEpisodeInfo.Quality);
                 }
 
                 _logger.Debug("Checking if release is higher quality than queued release. Queued: {0}", remoteEpisode.ParsedEpisodeInfo.Quality);
@@ -79,22 +79,22 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 switch (upgradeableRejectReason)
                 {
                     case UpgradeableRejectReason.BetterQuality:
-                        return Decision.Reject("Release in queue is of equal or higher preference: {0}", remoteEpisode.ParsedEpisodeInfo.Quality);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.QueueHigherPreference, "Release in queue is of equal or higher preference: {0}", remoteEpisode.ParsedEpisodeInfo.Quality);
 
                     case UpgradeableRejectReason.BetterRevision:
-                        return Decision.Reject("Release in queue is of equal or higher revision: {0}", remoteEpisode.ParsedEpisodeInfo.Quality.Revision);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.QueueHigherRevision, "Release in queue is of equal or higher revision: {0}", remoteEpisode.ParsedEpisodeInfo.Quality.Revision);
 
                     case UpgradeableRejectReason.QualityCutoff:
-                        return Decision.Reject("Release in queue meets quality cutoff: {0}", qualityProfile.Items[qualityProfile.GetIndex(qualityProfile.Cutoff).Index]);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.QueueCutoffMet, "Release in queue meets quality cutoff: {0}", qualityProfile.Items[qualityProfile.GetIndex(qualityProfile.Cutoff).Index]);
 
                     case UpgradeableRejectReason.CustomFormatCutoff:
-                        return Decision.Reject("Release in queue meets Custom Format cutoff: {0}", qualityProfile.CutoffFormatScore);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.QueueCustomFormatCutoffMet, "Release in queue meets Custom Format cutoff: {0}", qualityProfile.CutoffFormatScore);
 
                     case UpgradeableRejectReason.CustomFormatScore:
-                        return Decision.Reject("Release in queue has an equal or higher Custom Format score: {0}", qualityProfile.CalculateCustomFormatScore(queuedItemCustomFormats));
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.QueueCustomFormatScore, "Release in queue has an equal or higher Custom Format score: {0}", qualityProfile.CalculateCustomFormatScore(queuedItemCustomFormats));
 
                     case UpgradeableRejectReason.MinCustomFormatScore:
-                        return Decision.Reject("Release in queue has Custom Format score within Custom Format score increment: {0}", qualityProfile.MinUpgradeFormatScore);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.QueueCustomFormatScoreIncrement, "Release in queue has Custom Format score within Custom Format score increment: {0}", qualityProfile.MinUpgradeFormatScore);
                 }
 
                 _logger.Debug("Checking if profiles allow upgrading. Queued: {0}", remoteEpisode.ParsedEpisodeInfo.Quality);
@@ -105,7 +105,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                                                                subject.ParsedEpisodeInfo.Quality,
                                                                subject.CustomFormats))
                 {
-                    return Decision.Reject("Another release is queued and the Quality profile does not allow upgrades");
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.QueueNoUpgrades, "Another release is queued and the Quality profile does not allow upgrades");
                 }
 
                 if (_upgradableSpecification.IsRevisionUpgrade(remoteEpisode.ParsedEpisodeInfo.Quality, subject.ParsedEpisodeInfo.Quality))
@@ -113,12 +113,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                     if (_configService.DownloadPropersAndRepacks == ProperDownloadTypes.DoNotUpgrade)
                     {
                         _logger.Debug("Auto downloading of propers is disabled");
-                        return Decision.Reject("Proper downloading is disabled");
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.QueuePropersDisabled, "Proper downloading is disabled");
                     }
                 }
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/RawDiskSpecification.cs

@@ -7,7 +7,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class RawDiskSpecification : IDecisionEngineSpecification
+    public class RawDiskSpecification : IDownloadDecisionEngineSpecification
     {
         private static readonly Regex[] DiscRegex = new[]
                                                     {
@@ -29,11 +29,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (subject.Release == null)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             foreach (var regex in DiscRegex)
@@ -41,28 +41,28 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 if (regex.IsMatch(subject.Release.Title))
                 {
                     _logger.Debug("Release contains raw Bluray/DVD, rejecting.");
-                    return Decision.Reject("Raw Bluray/DVD release");
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.Raw, "Raw Bluray/DVD release");
                 }
             }
 
             if (subject.Release.Container.IsNullOrWhiteSpace())
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             if (_dvdContainerTypes.Contains(subject.Release.Container.ToLower()))
             {
                 _logger.Debug("Release contains raw DVD, rejecting.");
-                return Decision.Reject("Raw DVD release");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.Raw, "Raw DVD release");
             }
 
             if (_blurayContainerTypes.Contains(subject.Release.Container.ToLower()))
             {
                 _logger.Debug("Release contains raw Bluray, rejecting.");
-                return Decision.Reject("Raw Bluray release");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.Raw, "Raw Bluray release");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/ReleaseRestrictionsSpecification.cs

@@ -8,7 +8,7 @@ using NzbDrone.Core.Profiles.Releases;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class ReleaseRestrictionsSpecification : IDecisionEngineSpecification
+    public class ReleaseRestrictionsSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
         private readonly IReleaseProfileService _releaseProfileService;
@@ -24,7 +24,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             _logger.Debug("Checking if release meets restrictions: {0}", subject);
 
@@ -43,7 +43,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 {
                     var terms = string.Join(", ", requiredTerms);
                     _logger.Debug("[{0}] does not contain one of the required terms: {1}", title, terms);
-                    return Decision.Reject("Does not contain one of the required terms: {0}", terms);
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.MustContainMissing, "Does not contain one of the required terms: {0}", terms);
                 }
             }
 
@@ -56,12 +56,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 {
                     var terms = string.Join(", ", foundTerms);
                     _logger.Debug("[{0}] contains these ignored terms: {1}", title, terms);
-                    return Decision.Reject("Contains these ignored terms: {0}", terms);
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.MustNotContainPresent, "Contains these ignored terms: {0}", terms);
                 }
             }
 
             _logger.Debug("[{0}] No restrictions apply, allowing", subject);
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
 
         private List<string> ContainsAny(List<string> terms, string title)

src/NzbDrone.Core/DecisionEngine/Specifications/RepackSpecification.cs

@@ -9,7 +9,7 @@ using NzbDrone.Core.Qualities;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class RepackSpecification : IDecisionEngineSpecification
+    public class RepackSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly UpgradableSpecification _upgradableSpecification;
         private readonly IConfigService _configService;
@@ -25,11 +25,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Database;
         public RejectionType Type => RejectionType.Permanent;
 
-        public Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (!subject.ParsedEpisodeInfo.Quality.Revision.IsRepack)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var downloadPropersAndRepacks = _configService.DownloadPropersAndRepacks;
@@ -37,7 +37,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
             if (downloadPropersAndRepacks == ProperDownloadTypes.DoNotPrefer)
             {
                 _logger.Debug("Repacks are not preferred, skipping check");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             foreach (var file in subject.Episodes.Where(c => c.EpisodeFileId != 0).Select(c => c.EpisodeFile.Value))
@@ -47,7 +47,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                     if (downloadPropersAndRepacks == ProperDownloadTypes.DoNotUpgrade)
                     {
                         _logger.Debug("Auto downloading of repacks is disabled");
-                        return Decision.Reject("Repack downloading is disabled");
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.RepackDisabled, "Repack downloading is disabled");
                     }
 
                     var releaseGroup = subject.ParsedEpisodeInfo.ReleaseGroup;
@@ -55,12 +55,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
 
                     if (fileReleaseGroup.IsNullOrWhiteSpace())
                     {
-                        return Decision.Reject("Unable to determine release group for the existing file");
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.RepackUnknownReleaseGroup, "Unable to determine release group for the existing file");
                     }
 
                     if (releaseGroup.IsNullOrWhiteSpace())
                     {
-                        return Decision.Reject("Unable to determine release group for this release");
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.RepackUnknownReleaseGroup, "Unable to determine release group for this release");
                     }
 
                     if (!fileReleaseGroup.Equals(releaseGroup, StringComparison.InvariantCultureIgnoreCase))
@@ -69,7 +69,8 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                             "Release is a repack for a different release group. Release Group: {0}. File release group: {1}",
                             releaseGroup,
                             fileReleaseGroup);
-                        return Decision.Reject(
+                        return DownloadSpecDecision.Reject(
+                            DownloadRejectionReason.RepackReleaseGroupDoesNotMatch,
                             "Release is a repack for a different release group. Release Group: {0}. File release group: {1}",
                             releaseGroup,
                             fileReleaseGroup);
@@ -77,7 +78,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 }
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/RetentionSpecification.cs

@@ -5,7 +5,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class RetentionSpecification : IDecisionEngineSpecification
+    public class RetentionSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IConfigService _configService;
         private readonly Logger _logger;
@@ -19,12 +19,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (subject.Release.DownloadProtocol != Indexers.DownloadProtocol.Usenet)
             {
                 _logger.Debug("Not checking retention requirement for non-usenet report");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var age = subject.Release.Age;
@@ -34,10 +34,10 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
             if (retention > 0 && age > retention)
             {
                 _logger.Debug("Report age: {0} rejected by user's retention limit", age);
-                return Decision.Reject("Older than configured retention");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.MaximumAge, "Older than configured retention");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

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

@@ -8,7 +8,7 @@ using NzbDrone.Core.Qualities;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
 {
-    public class DelaySpecification : IDecisionEngineSpecification
+    public class DelaySpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IPendingReleaseService _pendingReleaseService;
         private readonly IDelayProfileService _delayProfileService;
@@ -26,12 +26,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
         public SpecificationPriority Priority => SpecificationPriority.Database;
         public RejectionType Type => RejectionType.Temporary;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (searchCriteria != null && searchCriteria.UserInvokedSearch)
             {
                 _logger.Debug("Ignoring delay for user invoked search");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var qualityProfile = subject.Series.QualityProfile.Value;
@@ -42,7 +42,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
             if (delay == 0)
             {
                 _logger.Debug("QualityProfile does not require a waiting period before download for {0}.", subject.Release.DownloadProtocol);
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var qualityComparer = new QualityModelComparer(qualityProfile);
@@ -58,7 +58,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
                     if (qualityCompare == 0 && newQuality?.Revision.CompareTo(currentQuality.Revision) > 0)
                     {
                         _logger.Debug("New quality is a better revision for existing quality, skipping delay");
-                        return Decision.Accept();
+                        return DownloadSpecDecision.Accept();
                     }
                 }
             }
@@ -72,7 +72,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
                 if (isBestInProfile && isPreferredProtocol)
                 {
                     _logger.Debug("Quality is highest in profile for preferred protocol, will not delay");
-                    return Decision.Accept();
+                    return DownloadSpecDecision.Accept();
                 }
             }
 
@@ -85,7 +85,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
                 if (score >= minimum && isPreferredProtocol)
                 {
                     _logger.Debug("Custom format score ({0}) meets minimum ({1}) for preferred protocol, will not delay", score, minimum);
-                    return Decision.Accept();
+                    return DownloadSpecDecision.Accept();
                 }
             }
 
@@ -95,16 +95,16 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
 
             if (oldest != null && oldest.Release.AgeMinutes > delay)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             if (subject.Release.AgeMinutes < delay)
             {
                 _logger.Debug("Waiting for better quality release, There is a {0} minute delay on {1}", delay, subject.Release.DownloadProtocol);
-                return Decision.Reject("Waiting for better quality release");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.MinimumAgeDelay, "Waiting for better quality release");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

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

@@ -10,7 +10,7 @@ using NzbDrone.Core.Tv;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
 {
-    public class DeletedEpisodeFileSpecification : IDecisionEngineSpecification
+    public class DeletedEpisodeFileSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IDiskProvider _diskProvider;
         private readonly IConfigService _configService;
@@ -26,17 +26,17 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
         public SpecificationPriority Priority => SpecificationPriority.Disk;
         public RejectionType Type => RejectionType.Temporary;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (!_configService.AutoUnmonitorPreviouslyDownloadedEpisodes)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             if (searchCriteria != null)
             {
                 _logger.Debug("Skipping deleted episodefile check during search");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var missingEpisodeFiles = subject.Episodes
@@ -54,10 +54,10 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
                 }
 
                 _logger.Debug("Files for this episode exist in the database but not on disk, will be unmonitored on next diskscan. skipping.");
-                return Decision.Reject("Series is not monitored");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.SeriesNotMonitored, "Series is not monitored");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
 
         private bool IsEpisodeFileMissing(Series series, EpisodeFile episodeFile)

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

@@ -9,7 +9,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
 {
-    public class HistorySpecification : IDecisionEngineSpecification
+    public class HistorySpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IHistoryService _historyService;
         private readonly UpgradableSpecification _upgradableSpecification;
@@ -33,12 +33,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
         public SpecificationPriority Priority => SpecificationPriority.Database;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (searchCriteria != null)
             {
                 _logger.Debug("Skipping history check during search");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var cdhEnabled = _configService.EnableCompletedDownloadHandling;
@@ -81,10 +81,10 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
                     {
                         if (recent)
                         {
-                            return Decision.Reject("Recent grab event in history already meets cutoff: {0}", mostRecent.Quality);
+                            return DownloadSpecDecision.Reject(DownloadRejectionReason.HistoryRecentCutoffMet, "Recent grab event in history already meets cutoff: {0}", mostRecent.Quality);
                         }
 
-                        return Decision.Reject("CDH is disabled and grab event in history already meets cutoff: {0}", mostRecent.Quality);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.HistoryCdhDisabledCutoffMet, "CDH is disabled and grab event in history already meets cutoff: {0}", mostRecent.Quality);
                     }
 
                     var rejectionSubject = recent ? "Recent" : "CDH is disabled and";
@@ -95,27 +95,27 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
                             continue;
 
                         case UpgradeableRejectReason.BetterQuality:
-                            return Decision.Reject("{0} grab event in history is of equal or higher preference: {1}", rejectionSubject, mostRecent.Quality);
+                            return DownloadSpecDecision.Reject(DownloadRejectionReason.HistoryHigherPreference, "{0} grab event in history is of equal or higher preference: {1}", rejectionSubject, mostRecent.Quality);
 
                         case UpgradeableRejectReason.BetterRevision:
-                            return Decision.Reject("{0} grab event in history is of equal or higher revision: {1}", rejectionSubject, mostRecent.Quality.Revision);
+                            return DownloadSpecDecision.Reject(DownloadRejectionReason.HistoryHigherRevision, "{0} grab event in history is of equal or higher revision: {1}", rejectionSubject, mostRecent.Quality.Revision);
 
                         case UpgradeableRejectReason.QualityCutoff:
-                            return Decision.Reject("{0} grab event in history meets quality cutoff: {1}", rejectionSubject, qualityProfile.Items[qualityProfile.GetIndex(qualityProfile.Cutoff).Index]);
+                            return DownloadSpecDecision.Reject(DownloadRejectionReason.HistoryCutoffMet, "{0} grab event in history meets quality cutoff: {1}", rejectionSubject, qualityProfile.Items[qualityProfile.GetIndex(qualityProfile.Cutoff).Index]);
 
                         case UpgradeableRejectReason.CustomFormatCutoff:
-                            return Decision.Reject("{0} grab event in history meets Custom Format cutoff: {1}", rejectionSubject, qualityProfile.CutoffFormatScore);
+                            return DownloadSpecDecision.Reject(DownloadRejectionReason.HistoryCustomFormatCutoffMet, "{0} grab event in history meets Custom Format cutoff: {1}", rejectionSubject, qualityProfile.CutoffFormatScore);
 
                         case UpgradeableRejectReason.CustomFormatScore:
-                            return Decision.Reject("{0} grab event in history has an equal or higher Custom Format score: {1}", rejectionSubject, qualityProfile.CalculateCustomFormatScore(customFormats));
+                            return DownloadSpecDecision.Reject(DownloadRejectionReason.HistoryCustomFormatScore, "{0} grab event in history has an equal or higher Custom Format score: {1}", rejectionSubject, qualityProfile.CalculateCustomFormatScore(customFormats));
 
                         case UpgradeableRejectReason.MinCustomFormatScore:
-                            return Decision.Reject("{0} grab event in history has Custom Format score within Custom Format score increment: {1}", rejectionSubject, qualityProfile.MinUpgradeFormatScore);
+                            return DownloadSpecDecision.Reject(DownloadRejectionReason.HistoryCustomFormatScoreIncrement, "{0} grab event in history has Custom Format score within Custom Format score increment: {1}", rejectionSubject, qualityProfile.MinUpgradeFormatScore);
                     }
                 }
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

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

@@ -8,7 +8,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
 {
-    public class IndexerTagSpecification : IDecisionEngineSpecification
+    public class IndexerTagSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
         private readonly IIndexerFactory _indexerFactory;
@@ -22,11 +22,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (subject.Release == null || subject.Series?.Tags == null || subject.Release.IndexerId == 0)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             IndexerDefinition indexer;
@@ -37,7 +37,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
             catch (ModelNotFoundException)
             {
                 _logger.Debug("Indexer with id {0} does not exist, skipping indexer tags check", subject.Release.IndexerId);
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             // If indexer has tags, check that at least one of them is present on the series
@@ -47,10 +47,10 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
             {
                 _logger.Debug("Indexer {0} has tags. None of these are present on series {1}. Rejecting", subject.Release.Indexer, subject.Series);
 
-                return Decision.Reject("Series tags do not match any of the indexer tags");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.NoMatchingTag, "Series tags do not match any of the indexer tags");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

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

@@ -5,7 +5,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
 {
-    public class MonitoredEpisodeSpecification : IDecisionEngineSpecification
+    public class MonitoredEpisodeSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
 
@@ -17,33 +17,33 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (searchCriteria != null)
             {
                 if (!searchCriteria.MonitoredEpisodesOnly)
                 {
                     _logger.Debug("Skipping monitored check during search");
-                    return Decision.Accept();
+                    return DownloadSpecDecision.Accept();
                 }
             }
 
             if (!subject.Series.Monitored)
             {
                 _logger.Debug("{0} is present in the DB but not tracked. Rejecting", subject.Series);
-                return Decision.Reject("Series is not monitored");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.SeriesNotMonitored, "Series is not monitored");
             }
 
             var monitoredCount = subject.Episodes.Count(episode => episode.Monitored);
             if (monitoredCount == subject.Episodes.Count)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             if (subject.Episodes.Count == 1)
             {
                 _logger.Debug("Episode is not monitored. Rejecting", monitoredCount, subject.Episodes.Count);
-                return Decision.Reject("Episode is not monitored");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.EpisodeNotMonitored, "Episode is not monitored");
             }
 
             if (monitoredCount == 0)
@@ -55,7 +55,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
                 _logger.Debug("Only {0}/{1} episodes in the release are monitored. Rejecting", monitoredCount, subject.Episodes.Count);
             }
 
-            return Decision.Reject("One or more episodes is not monitored");
+            return DownloadSpecDecision.Reject(DownloadRejectionReason.EpisodeNotMonitored, "One or more episodes is not monitored");
         }
     }
 }

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

@@ -8,7 +8,7 @@ using NzbDrone.Core.Qualities;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
 {
-    public class ProperSpecification : IDecisionEngineSpecification
+    public class ProperSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly UpgradableSpecification _upgradableSpecification;
         private readonly IConfigService _configService;
@@ -24,11 +24,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (searchCriteria != null)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var downloadPropersAndRepacks = _configService.DownloadPropersAndRepacks;
@@ -36,7 +36,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
             if (downloadPropersAndRepacks == ProperDownloadTypes.DoNotPrefer)
             {
                 _logger.Debug("Propers are not preferred, skipping check");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             foreach (var file in subject.Episodes.Where(c => c.EpisodeFileId != 0).Select(c => c.EpisodeFile.Value))
@@ -46,18 +46,18 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
                     if (downloadPropersAndRepacks == ProperDownloadTypes.DoNotUpgrade)
                     {
                         _logger.Debug("Auto downloading of propers is disabled");
-                        return Decision.Reject("Proper downloading is disabled");
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.PropersDisabled, "Proper downloading is disabled");
                     }
 
                     if (file.DateAdded < DateTime.Today.AddDays(-7))
                     {
                         _logger.Debug("Proper for old file, rejecting: {0}", subject);
-                        return Decision.Reject("Proper for old file");
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.ProperForOldFile, "Proper for old file");
                     }
                 }
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/SameEpisodesGrabSpecification.cs

@@ -4,7 +4,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class SameEpisodesGrabSpecification : IDecisionEngineSpecification
+    public class SameEpisodesGrabSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly SameEpisodesSpecification _sameEpisodesSpecification;
         private readonly Logger _logger;
@@ -18,15 +18,15 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (_sameEpisodesSpecification.IsSatisfiedBy(subject.Episodes))
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             _logger.Debug("Episode file on disk contains more episodes than this release contains");
-            return Decision.Reject("Episode file on disk contains more episodes than this release contains");
+            return DownloadSpecDecision.Reject(DownloadRejectionReason.ExistingFileHasMoreEpisodes, "Episode file on disk contains more episodes than this release contains");
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/SceneMappingSpecification.cs

@@ -5,7 +5,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class SceneMappingSpecification : IDecisionEngineSpecification
+    public class SceneMappingSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
 
@@ -17,18 +17,18 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Temporary; // Temporary till there's a mapping
 
-        public Decision IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
         {
             if (remoteEpisode.SceneMapping == null)
             {
                 _logger.Debug("No applicable scene mapping, skipping.");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             if (remoteEpisode.SceneMapping.SceneOrigin.IsNullOrWhiteSpace())
             {
                 _logger.Debug("No explicit scene origin in scene mapping.");
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var split = remoteEpisode.SceneMapping.SceneOrigin.Split(':');
@@ -50,11 +50,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
 
                 if (remoteEpisode.SceneMapping.Comment.IsNotNullOrWhiteSpace())
                 {
-                    return Decision.Reject("{0} has ambiguous numbering");
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.AmbiguousNumbering, "{0} has ambiguous numbering");
                 }
                 else
                 {
-                    return Decision.Reject("Ambiguous numbering");
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.AmbiguousNumbering, "Ambiguous numbering");
                 }
             }
 
@@ -65,7 +65,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 _logger.Debug("SceneMapping origin is explicitly unknown, unsure what numbering scheme it uses but '{0}' will be assumed. Provide full release title to Sonarr/TheXEM team.", type);
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/Search/EpisodeRequestedSpecification.cs

@@ -5,7 +5,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications.Search
 {
-    public class EpisodeRequestedSpecification : IDecisionEngineSpecification
+    public class EpisodeRequestedSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
 
@@ -17,11 +17,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.Search
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public Decision IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
         {
             if (searchCriteria == null)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var criteriaEpisodes = searchCriteria.Episodes.Select(v => v.Id).ToList();
@@ -37,20 +37,20 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.Search
 
                     if (episodes.Count > 1)
                     {
-                        return Decision.Reject($"Episode wasn't requested: {episodes.First().SeasonNumber}x{episodes.First().EpisodeNumber}-{episodes.Last().EpisodeNumber}");
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.WrongEpisode, $"Episode wasn't requested: {episodes.First().SeasonNumber}x{episodes.First().EpisodeNumber}-{episodes.Last().EpisodeNumber}");
                     }
                     else
                     {
-                        return Decision.Reject($"Episode wasn't requested: {episodes.First().SeasonNumber}x{episodes.First().EpisodeNumber}");
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.WrongEpisode, $"Episode wasn't requested: {episodes.First().SeasonNumber}x{episodes.First().EpisodeNumber}");
                     }
                 }
                 else
                 {
-                    return Decision.Reject("Episode wasn't requested");
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.WrongEpisode, "Episode wasn't requested");
                 }
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/Search/SeasonMatchSpecification.cs

@@ -5,7 +5,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications.Search
 {
-    public class SeasonMatchSpecification : IDecisionEngineSpecification
+    public class SeasonMatchSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
         private readonly ISceneMappingService _sceneMappingService;
@@ -19,26 +19,26 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.Search
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public Decision IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
         {
             if (searchCriteria == null)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var singleEpisodeSpec = searchCriteria as SeasonSearchCriteria;
             if (singleEpisodeSpec == null)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             if (singleEpisodeSpec.SeasonNumber != remoteEpisode.ParsedEpisodeInfo.SeasonNumber)
             {
                 _logger.Debug("Season number does not match searched season number, skipping.");
-                return Decision.Reject("Wrong season");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.WrongSeason, "Wrong season");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/Search/SeriesSpecification.cs

@@ -4,7 +4,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications.Search
 {
-    public class SeriesSpecification : IDecisionEngineSpecification
+    public class SeriesSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
 
@@ -16,11 +16,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.Search
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public Decision IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
         {
             if (searchCriteria == null)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             _logger.Debug("Checking if series matches searched series");
@@ -28,10 +28,10 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.Search
             if (remoteEpisode.Series.Id != searchCriteria.Series.Id)
             {
                 _logger.Debug("Series {0} does not match {1}", remoteEpisode.Series, searchCriteria.Series);
-                return Decision.Reject("Wrong series");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.WrongSeries, "Wrong series");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/Search/SingleEpisodeSearchMatchSpecification.cs

@@ -6,7 +6,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications.Search
 {
-    public class SingleEpisodeSearchMatchSpecification : IDecisionEngineSpecification
+    public class SingleEpisodeSearchMatchSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
         private readonly ISceneMappingService _sceneMappingService;
@@ -20,11 +20,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.Search
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public Decision IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
         {
             if (searchCriteria == null)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var singleEpisodeSpec = searchCriteria as SingleEpisodeSearchCriteria;
@@ -39,41 +39,41 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.Search
                 return IsSatisfiedBy(remoteEpisode, animeEpisodeSpec);
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
 
-        private Decision IsSatisfiedBy(RemoteEpisode remoteEpisode, SingleEpisodeSearchCriteria singleEpisodeSpec)
+        private DownloadSpecDecision IsSatisfiedBy(RemoteEpisode remoteEpisode, SingleEpisodeSearchCriteria singleEpisodeSpec)
         {
             if (singleEpisodeSpec.SeasonNumber != remoteEpisode.ParsedEpisodeInfo.SeasonNumber)
             {
                 _logger.Debug("Season number does not match searched season number, skipping.");
-                return Decision.Reject("Wrong season");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.WrongSeason, "Wrong season");
             }
 
             if (!remoteEpisode.ParsedEpisodeInfo.EpisodeNumbers.Any())
             {
                 _logger.Debug("Full season result during single episode search, skipping.");
-                return Decision.Reject("Full season pack");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.FullSeason, "Full season pack");
             }
 
             if (!remoteEpisode.ParsedEpisodeInfo.EpisodeNumbers.Contains(singleEpisodeSpec.EpisodeNumber))
             {
                 _logger.Debug("Episode number does not match searched episode number, skipping.");
-                return Decision.Reject("Wrong episode");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.WrongEpisode, "Wrong episode");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
 
-        private Decision IsSatisfiedBy(RemoteEpisode remoteEpisode, AnimeEpisodeSearchCriteria animeEpisodeSpec)
+        private DownloadSpecDecision IsSatisfiedBy(RemoteEpisode remoteEpisode, AnimeEpisodeSearchCriteria animeEpisodeSpec)
         {
             if (remoteEpisode.ParsedEpisodeInfo.FullSeason && !animeEpisodeSpec.IsSeasonSearch)
             {
                 _logger.Debug("Full season result during single episode search, skipping.");
-                return Decision.Reject("Full season pack");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.FullSeason, "Full season pack");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/SeasonPackOnlySpecification.cs

@@ -8,7 +8,7 @@ using NzbDrone.Core.Tv;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class SeasonPackOnlySpecification : IDecisionEngineSpecification
+    public class SeasonPackOnlySpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
 
@@ -20,11 +20,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (searchCriteria == null || searchCriteria.Episodes.Count == 1)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             if (subject.Release.SeasonSearchMaximumSingleEpisodeAge > 0)
@@ -37,12 +37,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                     if (subset.Count > 0 && subset.Max(e => e.AirDateUtc).Value.Before(DateTime.UtcNow - TimeSpan.FromDays(subject.Release.SeasonSearchMaximumSingleEpisodeAge)))
                     {
                         _logger.Debug("Release {0}: last episode in this season aired more than {1} days ago, season pack required.", subject.Release.Title, subject.Release.SeasonSearchMaximumSingleEpisodeAge);
-                        return Decision.Reject("Last episode in this season aired more than {0} days ago, season pack required.", subject.Release.SeasonSearchMaximumSingleEpisodeAge);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.NotSeasonPack, "Last episode in this season aired more than {0} days ago, season pack required.", subject.Release.SeasonSearchMaximumSingleEpisodeAge);
                     }
                 }
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/SplitEpisodeSpecification.cs

@@ -4,7 +4,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class SplitEpisodeSpecification : IDecisionEngineSpecification
+    public class SplitEpisodeSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly Logger _logger;
 
@@ -16,15 +16,15 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             if (subject.ParsedEpisodeInfo.IsSplitEpisode)
             {
                 _logger.Debug("Split episode release {0} rejected. Not supported", subject.Release.Title);
-                return Decision.Reject("Split episode releases are not supported");
+                return DownloadSpecDecision.Reject(DownloadRejectionReason.SplitEpisode, "Split episode releases are not supported");
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/TorrentSeedingSpecification.cs

@@ -6,7 +6,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class TorrentSeedingSpecification : IDecisionEngineSpecification
+    public class TorrentSeedingSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly IIndexerFactory _indexerFactory;
         private readonly Logger _logger;
@@ -20,13 +20,13 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public Decision IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
+        public DownloadSpecDecision IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
         {
             var torrentInfo = remoteEpisode.Release as TorrentInfo;
 
             if (torrentInfo == null || torrentInfo.IndexerId == 0)
             {
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             IndexerDefinition indexer;
@@ -37,7 +37,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
             catch (ModelNotFoundException)
             {
                 _logger.Debug("Indexer with id {0} does not exist, skipping seeders check", torrentInfo.IndexerId);
-                return Decision.Accept();
+                return DownloadSpecDecision.Accept();
             }
 
             var torrentIndexerSettings = indexer.Settings as ITorrentIndexerSettings;
@@ -49,11 +49,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 if (torrentInfo.Seeders.HasValue && torrentInfo.Seeders.Value < minimumSeeders)
                 {
                     _logger.Debug("Not enough seeders: {0}. Minimum seeders: {1}", torrentInfo.Seeders, minimumSeeders);
-                    return Decision.Reject("Not enough seeders: {0}. Minimum seeders: {1}", torrentInfo.Seeders, minimumSeeders);
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.MinimumSeeders, "Not enough seeders: {0}. Minimum seeders: {1}", torrentInfo.Seeders, minimumSeeders);
                 }
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/UpgradeAllowedSpecification.cs

@@ -6,7 +6,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class UpgradeAllowedSpecification : IDecisionEngineSpecification
+    public class UpgradeAllowedSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly UpgradableSpecification _upgradableSpecification;
         private readonly ICustomFormatCalculationService _formatService;
@@ -24,7 +24,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             var qualityProfile = subject.Series.QualityProfile.Value;
 
@@ -48,11 +48,11 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                 {
                     _logger.Debug("Upgrading is not allowed by the quality profile");
 
-                    return Decision.Reject("Existing file and the Quality profile does not allow upgrades");
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.QualityUpgradesDisabled, "Existing file and the Quality profile does not allow upgrades");
                 }
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/UpgradeDiskSpecification.cs

@@ -6,7 +6,7 @@ using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.DecisionEngine.Specifications
 {
-    public class UpgradeDiskSpecification : IDecisionEngineSpecification
+    public class UpgradeDiskSpecification : IDownloadDecisionEngineSpecification
     {
         private readonly UpgradableSpecification _upgradableSpecification;
         private readonly ICustomFormatCalculationService _formatService;
@@ -24,7 +24,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
         public SpecificationPriority Priority => SpecificationPriority.Default;
         public RejectionType Type => RejectionType.Permanent;
 
-        public virtual Decision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
+        public virtual DownloadSpecDecision IsSatisfiedBy(RemoteEpisode subject, SearchCriteriaBase searchCriteria)
         {
             var qualityProfile = subject.Series.QualityProfile.Value;
 
@@ -48,7 +48,7 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                     var cutoff = qualityProfile.UpgradeAllowed ? qualityProfile.Cutoff : qualityProfile.FirststAllowedQuality().Id;
                     var qualityCutoff = qualityProfile.Items[qualityProfile.GetIndex(cutoff).Index];
 
-                    return Decision.Reject("Existing file meets cutoff: {0}", qualityCutoff);
+                    return DownloadSpecDecision.Reject(DownloadRejectionReason.DiskCutoffMet, "Existing file meets cutoff: {0}", qualityCutoff);
                 }
 
                 var customFormats = _formatService.ParseCustomFormat(file);
@@ -65,26 +65,26 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
                         continue;
 
                     case UpgradeableRejectReason.BetterQuality:
-                        return Decision.Reject("Existing file on disk is of equal or higher preference: {0}", file.Quality);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.DiskHigherPreference, "Existing file on disk is of equal or higher preference: {0}", file.Quality);
 
                     case UpgradeableRejectReason.BetterRevision:
-                        return Decision.Reject("Existing file on disk is of equal or higher revision: {0}", file.Quality.Revision);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.DiskHigherRevision, "Existing file on disk is of equal or higher revision: {0}", file.Quality.Revision);
 
                     case UpgradeableRejectReason.QualityCutoff:
-                        return Decision.Reject("Existing file on disk meets quality cutoff: {0}", qualityProfile.Items[qualityProfile.GetIndex(qualityProfile.Cutoff).Index]);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.DiskCutoffMet, "Existing file on disk meets quality cutoff: {0}", qualityProfile.Items[qualityProfile.GetIndex(qualityProfile.Cutoff).Index]);
 
                     case UpgradeableRejectReason.CustomFormatCutoff:
-                        return Decision.Reject("Existing file on disk meets Custom Format cutoff: {0}", qualityProfile.CutoffFormatScore);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.DiskCustomFormatCutoffMet, "Existing file on disk meets Custom Format cutoff: {0}", qualityProfile.CutoffFormatScore);
 
                     case UpgradeableRejectReason.CustomFormatScore:
-                        return Decision.Reject("Existing file on disk has a equal or higher Custom Format score: {0}", qualityProfile.CalculateCustomFormatScore(customFormats));
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.DiskCustomFormatScore, "Existing file on disk has a equal or higher Custom Format score: {0}", qualityProfile.CalculateCustomFormatScore(customFormats));
 
                     case UpgradeableRejectReason.MinCustomFormatScore:
-                        return Decision.Reject("Existing file on disk has Custom Format score within Custom Format score increment: {0}", qualityProfile.MinUpgradeFormatScore);
+                        return DownloadSpecDecision.Reject(DownloadRejectionReason.DiskCustomFormatScoreIncrement, "Existing file on disk has Custom Format score within Custom Format score increment: {0}", qualityProfile.MinUpgradeFormatScore);
                 }
             }
 
-            return Decision.Accept();
+            return DownloadSpecDecision.Accept();
         }
     }
 }