Sonarr/NzbDrone.Core/DecisionEngine/Specifications/NotInQueueSpecification.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using NLog;
using NzbDrone.Core.Download;
using NzbDrone.Core.Parser.Model;
using NzbDrone.Core.Tv;
namespace NzbDrone.Core.DecisionEngine.Specifications
{
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public class NotInQueueSpecification : IDecisionEngineSpecification
{
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private readonly IProvideDownloadClient _downloadClientProvider;
private readonly Logger _logger;
public NotInQueueSpecification(IProvideDownloadClient downloadClientProvider, Logger logger)
{
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_downloadClientProvider = downloadClientProvider;
_logger = logger;
}
public string RejectionReason
{
get
{
return "Already in download queue.";
}
}
public bool IsSatisfiedBy(RemoteEpisode subject)
{
var downloadClient = _downloadClientProvider.GetDownloadClient();
if (!downloadClient.IsConfigured)
{
_logger.Warn("Download client {0} isn't configured yet.", downloadClient.GetType().Name);
return true;
}
var queue = downloadClient.GetQueue().Select(queueItem => Parser.Parser.ParseTitle(queueItem.Title)).Where(episodeInfo => episodeInfo != null);
return !IsInQueue(subject, queue);
}
private bool IsInQueue(RemoteEpisode newEpisode, IEnumerable<ParsedEpisodeInfo> queue)
{
var matchingTitle = queue.Where(q => String.Equals(q.SeriesTitle, newEpisode.Series.CleanTitle, StringComparison.InvariantCultureIgnoreCase));
var matchingTitleWithQuality = matchingTitle.Where(q => q.Quality >= newEpisode.ParsedEpisodeInfo.Quality);
if (newEpisode.Series.SeriesType == SeriesTypes.Daily)
{
return matchingTitleWithQuality.Any(q => q.AirDate.Value.Date == newEpisode.ParsedEpisodeInfo.AirDate.Value.Date);
}
var matchingSeason = matchingTitleWithQuality.Where(q => q.SeasonNumber == newEpisode.ParsedEpisodeInfo.SeasonNumber);
if (newEpisode.ParsedEpisodeInfo.FullSeason)
{
return matchingSeason.Any();
}
return matchingSeason.Any(q => q.EpisodeNumbers != null && q.EpisodeNumbers.Any(e => newEpisode.ParsedEpisodeInfo.EpisodeNumbers.Contains(e)));
}
}
}