Lidarr/NzbDrone.Core/Providers/SearchProvider.cs

288 lines
12 KiB
C#
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NLog;
using Ninject;
using NzbDrone.Core.Model;
using NzbDrone.Core.Model.Notification;
using NzbDrone.Core.Providers.Jobs;
using NzbDrone.Core.Repository;
namespace NzbDrone.Core.Providers
{
public class SearchProvider
{
//Season and Episode Searching
private readonly EpisodeProvider _episodeProvider;
private readonly InventoryProvider _inventoryProvider;
private readonly DownloadProvider _downloadProvider;
private readonly SeriesProvider _seriesProvider;
private readonly IndexerProvider _indexerProvider;
private readonly SceneMappingProvider _sceneMappingProvider;
private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
[Inject]
public SearchProvider(EpisodeProvider episodeProvider, InventoryProvider inventoryProvider,
DownloadProvider downloadProvider, SeriesProvider seriesProvider,
IndexerProvider indexerProvider, SceneMappingProvider sceneMappingProvider)
{
_episodeProvider = episodeProvider;
_inventoryProvider = inventoryProvider;
_downloadProvider = downloadProvider;
_seriesProvider = seriesProvider;
_indexerProvider = indexerProvider;
_sceneMappingProvider = sceneMappingProvider;
}
public SearchProvider()
{
}
public virtual bool SeasonSearch(ProgressNotification notification, int seriesId, int seasonNumber)
{
var series = _seriesProvider.GetSeries(seriesId);
if (series == null)
{
Logger.Error("Unable to find an series {0} in database", seriesId);
return false;
}
notification.CurrentMessage = String.Format("Searching for {0} Season {1}", series.Title, seasonNumber);
var reports = PerformSearch(notification, series, seasonNumber);
Logger.Debug("Finished searching all indexers. Total {0}", reports.Count);
if (reports.Count == 0)
return false;
Logger.Debug("Getting episodes from database for series: {0} and season: {1}", seriesId, seasonNumber);
var episodeNumbers = _episodeProvider.GetEpisodeNumbersBySeason(seriesId, seasonNumber);
if (episodeNumbers == null || episodeNumbers.Count == 0)
{
Logger.Warn("No episodes in database found for series: {0} and season: {1}.", seriesId, seasonNumber);
return false;
}
notification.CurrentMessage = "Processing search results";
reports.Where(p => p.FullSeason && p.SeasonNumber == seasonNumber).ToList().ForEach(
e => e.EpisodeNumbers = episodeNumbers.ToList()
);
var downloadedEpisodes = ProcessSearchResults(notification, reports, series, seasonNumber);
downloadedEpisodes.Sort();
episodeNumbers.ToList().Sort();
//Returns true if the list of downloaded episodes matches the list of episode numbers
//(either a full season release was grabbed or all individual episodes)
return (downloadedEpisodes.SequenceEqual(episodeNumbers));
}
public virtual List<int> PartialSeasonSearch(ProgressNotification notification, int seriesId, int seasonNumber)
{
//This method will search for episodes in a season in groups of 10 episodes S01E0, S01E1, S01E2, etc
var series = _seriesProvider.GetSeries(seriesId);
if (series == null)
{
Logger.Error("Unable to find an series {0} in database", seriesId);
return new List<int>();
}
notification.CurrentMessage = String.Format("Searching for {0} Season {1}", series.Title, seasonNumber);
var episodes = _episodeProvider.GetEpisodesBySeason(seriesId, seasonNumber);
var reports = PerformSearch(notification, series, seasonNumber, episodes);
Logger.Debug("Finished searching all indexers. Total {0}", reports.Count);
if (reports.Count == 0)
return new List<int>();
notification.CurrentMessage = "Processing search results";
return ProcessSearchResults(notification, reports, series, seasonNumber);
}
public virtual bool EpisodeSearch(ProgressNotification notification, int episodeId)
{
var episode = _episodeProvider.GetEpisode(episodeId);
if (episode == null)
{
Logger.Error("Unable to find an episode {0} in database", episodeId);
return false;
}
notification.CurrentMessage = "Searching for " + episode;
var series = _seriesProvider.GetSeries(episode.SeriesId);
var indexers = _indexerProvider.GetEnabledIndexers();
var reports = new List<EpisodeParseResult>();
var title = _sceneMappingProvider.GetSceneName(series.SeriesId);
if (string.IsNullOrWhiteSpace(title))
{
title = series.Title;
}
foreach (var indexer in indexers)
{
try
{
//notification.CurrentMessage = String.Format("Searching for {0} in {1}", episode, indexer.Name);
//TODO:Add support for daily episodes, maybe search using both date and season/episode?
var indexerResults = indexer.FetchEpisode(title, episode.SeasonNumber, episode.EpisodeNumber);
reports.AddRange(indexerResults);
}
catch (Exception e)
{
Logger.ErrorException("An error has occurred while fetching items from " + indexer.Name, e);
}
}
Logger.Debug("Finished searching all indexers. Total {0}", reports.Count);
notification.CurrentMessage = "Processing search results";
//TODO:fix this so when search returns more than one episode
//TODO:-its populated with more than the original episode.
reports.ForEach(c =>
{
c.Series = series;
});
return (ProcessSearchResults(notification, reports, series, episode.SeasonNumber, episode.EpisodeNumber).Count == 1);
}
public List<EpisodeParseResult> PerformSearch(ProgressNotification notification, Series series, int seasonNumber, IList<Episode> episodes = null)
{
//If single episode, do a single episode search, if full season then do a full season search, otherwise, do a partial search
var indexers = _indexerProvider.GetEnabledIndexers();
var reports = new List<EpisodeParseResult>();
var title = _sceneMappingProvider.GetSceneName(series.SeriesId);
if (string.IsNullOrWhiteSpace(title))
{
title = series.Title;
}
foreach(var indexer in indexers)
{
try
{
if (episodes == null)
reports.AddRange(indexer.FetchSeason(title, seasonNumber));
else if(episodes.Count == 1)
reports.AddRange(indexer.FetchEpisode(title, seasonNumber, episodes.First().EpisodeNumber));
//Treat as Partial Season
else
{
var prefixes = GetEpisodeNumberPrefixes(episodes.Select(s => s.EpisodeNumber));
foreach(var episodePrefix in prefixes)
{
reports.AddRange(indexer.FetchPartialSeason(title, seasonNumber, episodePrefix));
}
}
}
catch (Exception e)
{
Logger.ErrorException("An error has occurred while fetching items from " + indexer.Name, e);
}
}
return reports;
}
public List<int> ProcessSearchResults(ProgressNotification notification, IEnumerable<EpisodeParseResult> reports, Series series, int seasonNumber, int? episodeNumber = null)
{
var successes = new List<int>();
foreach (var episodeParseResult in reports.OrderByDescending(c => c.Quality))
{
try
{
Logger.Trace("Analysing report " + episodeParseResult);
//Get the matching series
episodeParseResult.Series = _seriesProvider.FindSeries(episodeParseResult.CleanTitle);
//If series is null or doesn't match the series we're looking for return
if (episodeParseResult.Series == null || episodeParseResult.Series.SeriesId != series.SeriesId)
continue;
//If SeasonNumber doesn't match or episode is not in the in the list in the parse result, skip the report.
if (episodeParseResult.SeasonNumber != seasonNumber)
continue;
//If the EpisodeNumber was passed in and it is not contained in the parseResult, skip the report.
if (episodeNumber.HasValue && !episodeParseResult.EpisodeNumbers.Contains(episodeNumber.Value))
continue;
//Make sure we haven't already downloaded a report with this episodenumber, if we have, skip the report.
if (successes.Intersect(episodeParseResult.EpisodeNumbers).Count() > 0)
continue;
if (_inventoryProvider.IsQualityNeeded(episodeParseResult))
{
Logger.Debug("Found '{0}'. Adding to download queue.", episodeParseResult);
try
{
if (_downloadProvider.DownloadReport(episodeParseResult))
{
notification.CurrentMessage =
String.Format("{0} - S{1:00}E{2:00} {3}Added to download queue",
episodeParseResult.Series.Title, episodeParseResult.SeasonNumber,
episodeParseResult.EpisodeNumbers[0], episodeParseResult.Quality);
//Add the list of episode numbers from this release
successes.AddRange(episodeParseResult.EpisodeNumbers);
}
}
catch (Exception e)
{
Logger.ErrorException("Unable to add report to download queue." + episodeParseResult, e);
notification.CurrentMessage = String.Format("Unable to add report to download queue. {0}", episodeParseResult);
}
}
}
catch (Exception e)
{
Logger.ErrorException("An error has occurred while processing parse result items from " + episodeParseResult, e);
}
}
return successes;
}
private List<int> GetEpisodeNumberPrefixes(IEnumerable<int> episodeNumbers)
{
var results = new List<int>();
foreach (var i in episodeNumbers)
{
results.Add(i / 10);
}
return results.Distinct().ToList();
}
}
}