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

using System.Linq;
using NLog;
using NzbDrone.Core.IndexerSearch.Definitions;
using NzbDrone.Core.Parser.Model;


namespace NzbDrone.Core.DecisionEngine.Specifications.Search
{
    public class EpisodeRequestedSpecification : IDecisionEngineSpecification
    {
        private readonly Logger _logger;

        public EpisodeRequestedSpecification(Logger logger)
        {
            _logger = logger;
        }

        public string RejectionReason
        {
            get
            {
                return "Episode wasn't requested";
            }
        }

        public RejectionType Type { get { return RejectionType.Permanent; } }

        public bool IsSatisfiedBy(RemoteEpisode remoteEpisode, SearchCriteriaBase searchCriteria)
        {
            if (searchCriteria == null)
            {
                return true;
            }
            var criteriaEpisodes = searchCriteria.Episodes.Select(v => v.Id).ToList();
            var remoteEpisodes = remoteEpisode.Episodes.Select(v => v.Id).ToList();
            if (!criteriaEpisodes.Intersect(remoteEpisodes).Any())
            {
                _logger.Debug("Release rejected since the episode wasn't requested: {0}", remoteEpisode.ParsedEpisodeInfo);
                return false;
            }

            return true;
        }
    }
}