rework media layout (#22)

* replace media items tables with card grids

* style cleanup

* add basic paging

* sort and page in the db

* optimize sql for movies

* support movie posters

* resize movie posters and store in cache with channel logos

* fix bug preventing folders with more than 50 chars as local media sources

* support tv posters

ErsatzTV.Core/Metadata/LocalMediaScanner.cs

@@ -16,6 +16,7 @@ namespace ErsatzTV.Core.Metadata
     public class LocalMediaScanner : ILocalMediaScanner
     {
         private readonly ILocalMetadataProvider _localMetadataProvider;
+        private readonly ILocalPosterProvider _localPosterProvider;
         private readonly ILocalStatisticsProvider _localStatisticsProvider;
         private readonly ILogger<LocalMediaScanner> _logger;
         private readonly IMediaItemRepository _mediaItemRepository;
@@ -28,6 +29,7 @@ namespace ErsatzTV.Core.Metadata
             IPlayoutRepository playoutRepository,
             ILocalStatisticsProvider localStatisticsProvider,
             ILocalMetadataProvider localMetadataProvider,
+            ILocalPosterProvider localPosterProvider,
             ISmartCollectionBuilder smartCollectionBuilder,
             IPlayoutBuilder playoutBuilder,
             ILogger<LocalMediaScanner> logger)
@@ -36,6 +38,7 @@ namespace ErsatzTV.Core.Metadata
             _playoutRepository = playoutRepository;
             _localStatisticsProvider = localStatisticsProvider;
             _localMetadataProvider = localMetadataProvider;
+            _localPosterProvider = localPosterProvider;
             _smartCollectionBuilder = smartCollectionBuilder;
             _playoutBuilder = playoutBuilder;
             _logger = logger;
@@ -135,6 +138,7 @@ namespace ErsatzTV.Core.Metadata
         {
             await _localStatisticsProvider.RefreshStatistics(ffprobePath, mediaItem);
             await _localMetadataProvider.RefreshMetadata(mediaItem);
+            await _localPosterProvider.RefreshPoster(mediaItem);
             await _smartCollectionBuilder.RefreshSmartCollections(mediaItem);
         }
     }

ErsatzTV.Core/Metadata/LocalMetadataProvider.cs

@@ -43,6 +43,10 @@ namespace ErsatzTV.Core.Metadata
             mediaItem.Metadata.MediaType = metadata.MediaType;
             mediaItem.Metadata.Title = metadata.Title;
             mediaItem.Metadata.Subtitle = metadata.Subtitle;
+            mediaItem.Metadata.SortTitle =
+                (metadata.Title ?? string.Empty).ToLowerInvariant().StartsWith("the ")
+                    ? metadata.Title?.Substring(4)
+                    : metadata.Title;
             mediaItem.Metadata.Description = metadata.Description;
             mediaItem.Metadata.EpisodeNumber = metadata.EpisodeNumber;
             mediaItem.Metadata.SeasonNumber = metadata.SeasonNumber;

ErsatzTV.Core/Metadata/LocalPosterProvider.cs

@@ -0,0 +1,90 @@
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Interfaces.Images;
+using ErsatzTV.Core.Interfaces.Metadata;
+using ErsatzTV.Core.Interfaces.Repositories;
+using LanguageExt;
+using Microsoft.Extensions.Logging;
+using static LanguageExt.Prelude;
+
+namespace ErsatzTV.Core.Metadata
+{
+    public class LocalPosterProvider : ILocalPosterProvider
+    {
+        private readonly IImageCache _imageCache;
+        private readonly ILogger<LocalPosterProvider> _logger;
+        private readonly IMediaItemRepository _mediaItemRepository;
+
+        public LocalPosterProvider(
+            IMediaItemRepository mediaItemRepository,
+            IImageCache imageCache,
+            ILogger<LocalPosterProvider> logger)
+        {
+            _mediaItemRepository = mediaItemRepository;
+            _imageCache = imageCache;
+            _logger = logger;
+        }
+
+        public async Task RefreshPoster(MediaItem mediaItem)
+        {
+            Option<string> maybePosterPath = mediaItem.Metadata.MediaType switch
+            {
+                MediaType.Movie => RefreshMoviePoster(mediaItem),
+                MediaType.TvShow => RefreshTelevisionPoster(mediaItem),
+                _ => None
+            };
+
+            await maybePosterPath.Match(
+                path => SavePosterToDisk(mediaItem, path),
+                Task.CompletedTask);
+        }
+
+        private static Option<string> RefreshMoviePoster(MediaItem mediaItem)
+        {
+            string folder = Path.GetDirectoryName(mediaItem.Path);
+            if (folder != null)
+            {
+                string[] possiblePaths =
+                    { "poster.jpg", Path.GetFileNameWithoutExtension(mediaItem.Path) + "-poster.jpg" };
+                Option<string> maybePoster =
+                    possiblePaths.Map(p => Path.Combine(folder, p)).FirstOrDefault(File.Exists);
+                return maybePoster;
+            }
+
+            return None;
+        }
+
+        private Option<string> RefreshTelevisionPoster(MediaItem mediaItem)
+        {
+            string folder = Directory.GetParent(Path.GetDirectoryName(mediaItem.Path) ?? string.Empty)?.FullName;
+            if (folder != null)
+            {
+                string[] possiblePaths = { "poster.jpg" };
+                Option<string> maybePoster =
+                    possiblePaths.Map(p => Path.Combine(folder, p)).FirstOrDefault(File.Exists);
+                return maybePoster;
+            }
+
+            return None;
+        }
+
+        private async Task SavePosterToDisk(MediaItem mediaItem, string posterPath)
+        {
+            byte[] originalBytes = await File.ReadAllBytesAsync(posterPath);
+            Either<BaseError, string> maybeHash = await _imageCache.ResizeAndSaveImage(originalBytes, 220, null);
+            await maybeHash.Match(
+                hash =>
+                {
+                    mediaItem.Poster = hash;
+                    return _mediaItemRepository.Update(mediaItem);
+                },
+                error =>
+                {
+                    _logger.LogWarning("Unable to save poster to disk from {Path}: {Error}", posterPath, error.Value);
+                    return Task.CompletedTask;
+                });
+        }
+    }
+}