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253 lines
8.7 KiB
253 lines
8.7 KiB
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Net;
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using System.Threading;
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using NLog;
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using NzbDrone.Common.Disk;
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using NzbDrone.Common.EnvironmentInfo;
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using NzbDrone.Common.Extensions;
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using NzbDrone.Common.Http;
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using NzbDrone.Core.Configuration;
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using NzbDrone.Core.Messaging.Events;
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using NzbDrone.Core.Tv;
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using NzbDrone.Core.Tv.Events;
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namespace NzbDrone.Core.MediaCover
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{
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public interface IMapCoversToLocal
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{
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void ConvertToLocalUrls(int seriesId, IEnumerable<MediaCover> covers);
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string GetCoverPath(int seriesId, MediaCoverTypes coverType, int? height = null);
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}
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public class MediaCoverService :
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IHandleAsync<SeriesUpdatedEvent>,
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IHandleAsync<SeriesDeletedEvent>,
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IMapCoversToLocal
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{
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private readonly IMediaCoverProxy _mediaCoverProxy;
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private readonly IImageResizer _resizer;
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private readonly IHttpClient _httpClient;
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private readonly IDiskProvider _diskProvider;
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private readonly ICoverExistsSpecification _coverExistsSpecification;
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private readonly IConfigFileProvider _configFileProvider;
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private readonly IEventAggregator _eventAggregator;
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private readonly Logger _logger;
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private readonly string _coverRootFolder;
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// ImageSharp is slow on ARM (no hardware acceleration on mono yet)
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// So limit the number of concurrent resizing tasks
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private static SemaphoreSlim _semaphore = new SemaphoreSlim((int)Math.Ceiling(Environment.ProcessorCount / 2.0));
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public MediaCoverService(IMediaCoverProxy mediaCoverProxy,
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IImageResizer resizer,
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IHttpClient httpClient,
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IDiskProvider diskProvider,
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IAppFolderInfo appFolderInfo,
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ICoverExistsSpecification coverExistsSpecification,
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IConfigFileProvider configFileProvider,
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IEventAggregator eventAggregator,
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Logger logger)
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{
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_mediaCoverProxy = mediaCoverProxy;
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_resizer = resizer;
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_httpClient = httpClient;
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_diskProvider = diskProvider;
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_coverExistsSpecification = coverExistsSpecification;
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_configFileProvider = configFileProvider;
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_eventAggregator = eventAggregator;
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_logger = logger;
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_coverRootFolder = appFolderInfo.GetMediaCoverPath();
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}
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public string GetCoverPath(int seriesId, MediaCoverTypes coverType, int? height = null)
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{
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var heightSuffix = height.HasValue ? "-" + height.ToString() : "";
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return Path.Combine(GetSeriesCoverPath(seriesId), coverType.ToString().ToLower() + heightSuffix + GetExtension(coverType));
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}
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public void ConvertToLocalUrls(int seriesId, IEnumerable<MediaCover> covers)
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{
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if (seriesId == 0)
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{
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// Series isn't in Sonarr yet, map via a proxy to circument referrer issues
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foreach (var mediaCover in covers)
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{
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mediaCover.Url = _mediaCoverProxy.RegisterUrl(mediaCover.RemoteUrl);
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}
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}
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else
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{
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foreach (var mediaCover in covers)
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{
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if (mediaCover.CoverType == MediaCoverTypes.Unknown)
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{
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continue;
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}
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var filePath = GetCoverPath(seriesId, mediaCover.CoverType);
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mediaCover.Url = _configFileProvider.UrlBase + @"/MediaCover/" + seriesId + "/" + mediaCover.CoverType.ToString().ToLower() + GetExtension(mediaCover.CoverType);
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if (_diskProvider.FileExists(filePath))
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{
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var lastWrite = _diskProvider.FileGetLastWrite(filePath);
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mediaCover.Url += "?lastWrite=" + lastWrite.Ticks;
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}
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}
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}
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}
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private string GetSeriesCoverPath(int seriesId)
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{
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return Path.Combine(_coverRootFolder, seriesId.ToString());
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}
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private bool EnsureCovers(Series series)
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{
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var updated = false;
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var toResize = new List<Tuple<MediaCover, bool>>();
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foreach (var cover in series.Images)
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{
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if (cover.CoverType == MediaCoverTypes.Unknown)
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{
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continue;
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}
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var fileName = GetCoverPath(series.Id, cover.CoverType);
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var alreadyExists = false;
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try
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{
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alreadyExists = _coverExistsSpecification.AlreadyExists(cover.RemoteUrl, fileName);
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if (!alreadyExists)
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{
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DownloadCover(series, cover);
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updated = true;
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}
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}
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catch (HttpException e)
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{
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_logger.Warn("Couldn't download media cover for {0}. {1}", series, e.Message);
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}
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catch (WebException e)
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{
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_logger.Warn("Couldn't download media cover for {0}. {1}", series, e.Message);
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}
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catch (Exception e)
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{
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_logger.Error(e, "Couldn't download media cover for {0}", series);
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}
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toResize.Add(Tuple.Create(cover, alreadyExists));
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}
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try
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{
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_semaphore.Wait();
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foreach (var tuple in toResize)
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{
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EnsureResizedCovers(series, tuple.Item1, !tuple.Item2);
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}
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}
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finally
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{
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_semaphore.Release();
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}
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return updated;
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}
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private void DownloadCover(Series series, MediaCover cover)
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{
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var fileName = GetCoverPath(series.Id, cover.CoverType);
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_logger.Info("Downloading {0} for {1} {2}", cover.CoverType, series, cover.RemoteUrl);
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_httpClient.DownloadFile(cover.RemoteUrl, fileName);
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}
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private void EnsureResizedCovers(Series series, MediaCover cover, bool forceResize)
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{
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int[] heights;
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switch (cover.CoverType)
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{
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default:
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return;
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case MediaCoverTypes.Poster:
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case MediaCoverTypes.Headshot:
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heights = new[] { 500, 250 };
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break;
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case MediaCoverTypes.Banner:
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heights = new[] { 70, 35 };
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break;
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case MediaCoverTypes.Fanart:
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case MediaCoverTypes.Screenshot:
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heights = new[] { 360, 180 };
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break;
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}
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foreach (var height in heights)
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{
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var mainFileName = GetCoverPath(series.Id, cover.CoverType);
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var resizeFileName = GetCoverPath(series.Id, cover.CoverType, height);
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if (forceResize || !_diskProvider.FileExists(resizeFileName) || _diskProvider.GetFileSize(resizeFileName) == 0)
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{
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_logger.Debug("Resizing {0}-{1} for {2}", cover.CoverType, height, series);
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try
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{
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_resizer.Resize(mainFileName, resizeFileName, height);
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}
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catch
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{
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_logger.Debug("Couldn't resize media cover {0}-{1} for {2}, using full size image instead.", cover.CoverType, height, series);
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}
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}
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}
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}
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private string GetExtension(MediaCoverTypes coverType)
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{
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switch (coverType)
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{
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default:
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return ".jpg";
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case MediaCoverTypes.Clearlogo:
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return ".png";
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}
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}
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public void HandleAsync(SeriesUpdatedEvent message)
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{
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var updated = EnsureCovers(message.Series);
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_eventAggregator.PublishEvent(new MediaCoversUpdatedEvent(message.Series, updated));
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}
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public void HandleAsync(SeriesDeletedEvent message)
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{
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foreach (var series in message.Series)
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{
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var path = GetSeriesCoverPath(series.Id);
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if (_diskProvider.FolderExists(path))
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{
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_diskProvider.DeleteFolder(path, true);
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}
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}
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}
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}
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}
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