New: Rewrite of download decision engine.

NzbDrone.Core/Providers/DecisionEngine/MonitoredEpisodeSpecification.cs

@@ -0,0 +1,56 @@
+using System.Linq;
+using NLog;
+using Ninject;
+using NzbDrone.Core.Model;
+
+namespace NzbDrone.Core.Providers.DecisionEngine
+{
+    public class MonitoredEpisodeSpecification
+    {
+        private readonly SeriesProvider _seriesProvider;
+        private readonly EpisodeProvider _episodeProvider;
+        private static readonly Logger logger = LogManager.GetCurrentClassLogger();
+
+        [Inject]
+        public MonitoredEpisodeSpecification(SeriesProvider seriesProvider, EpisodeProvider episodeProvider)
+        {
+            _seriesProvider = seriesProvider;
+            _episodeProvider = episodeProvider;
+        }
+
+        public MonitoredEpisodeSpecification()
+        {
+            
+        }
+
+        public virtual bool IsSatisfiedBy(EpisodeParseResult subject)
+        {
+            var series = _seriesProvider.FindSeries(subject.CleanTitle);
+
+            if (series == null)
+            {
+                logger.Trace("{0} is not mapped to any series in DB. skipping", subject.CleanTitle);
+                return false;
+            }
+
+            subject.Series = series;
+
+            if (!series.Monitored)
+            {
+                logger.Debug("{0} is present in the DB but not tracked. skipping.", subject.CleanTitle);
+                return false;
+            }
+
+            var episodes = _episodeProvider.GetEpisodesByParseResult(subject);
+
+            //return monitored if any of the episodes are monitored
+            if (episodes.Any(episode => !episode.Ignored))
+            {
+                return true;
+            }
+
+            logger.Debug("All episodes are ignored. skipping.");
+            return false;
+        }
+    }
+}