support tv posters

ErsatzTV.Application/MediaItems/Queries/GetPosterContents.cs

@@ -1,9 +0,0 @@
-using ErsatzTV.Application.Images;
-using ErsatzTV.Core;
-using LanguageExt;
-using MediatR;
-
-namespace ErsatzTV.Application.MediaItems.Queries
-{
-    public record GetPosterContents(int MediaItemId) : IRequest<Either<BaseError, ImageViewModel>>;
-}

ErsatzTV.Application/MediaItems/Queries/GetPosterContentsHandler.cs

@@ -1,71 +0,0 @@
-using System;
-using System.IO;
-using System.Threading;
-using System.Threading.Tasks;
-using ErsatzTV.Application.Images;
-using ErsatzTV.Core;
-using ErsatzTV.Core.Domain;
-using ErsatzTV.Core.Interfaces.Repositories;
-using LanguageExt;
-using MediatR;
-using Microsoft.Extensions.Caching.Memory;
-using Winista.Mime;
-using static LanguageExt.Prelude;
-
-namespace ErsatzTV.Application.MediaItems.Queries
-{
-    public class GetPosterContentsHandler : IRequestHandler<GetPosterContents, Either<BaseError, ImageViewModel>>
-    {
-        private static readonly MimeTypes MimeTypes = new();
-
-        private readonly IMediaItemRepository _mediaItemRepository;
-        private readonly IMemoryCache _memoryCache;
-
-        public GetPosterContentsHandler(IMediaItemRepository mediaItemRepository, IMemoryCache memoryCache)
-        {
-            _mediaItemRepository = mediaItemRepository;
-            _memoryCache = memoryCache;
-        }
-
-        public Task<Either<BaseError, ImageViewModel>> Handle(
-            GetPosterContents request,
-            CancellationToken cancellationToken) =>
-            Validate(request)
-                .Map(v => v.ToEither<MediaItem>())
-                .BindT(GetPoster);
-
-        private async Task<Either<BaseError, ImageViewModel>> GetPoster(MediaItem mediaItem)
-        {
-            try
-            {
-                return await _memoryCache.GetOrCreateAsync(
-                    mediaItem.Poster,
-                    async entry =>
-                    {
-                        entry.SlidingExpiration = TimeSpan.FromHours(1);
-
-                        byte[] contents = await File.ReadAllBytesAsync(mediaItem.Poster);
-                        MimeType mimeType = MimeTypes.GetMimeType(contents);
-                        return new ImageViewModel(contents, mimeType.Name);
-                    });
-            }
-            catch (Exception ex)
-            {
-                return BaseError.New(ex.Message);
-            }
-        }
-
-        private Task<Validation<BaseError, MediaItem>> Validate(GetPosterContents request) =>
-            MediaItemMustExist(request).BindT(PosterPathMustExist);
-
-        private async Task<Validation<BaseError, MediaItem>> MediaItemMustExist(GetPosterContents request) =>
-            (await _mediaItemRepository.Get(request.MediaItemId))
-            .ToValidation<BaseError>($"MediaItem {request.MediaItemId} does not exist.");
-
-        private static Validation<BaseError, MediaItem> PosterPathMustExist(MediaItem mediaItem) =>
-            Optional(mediaItem.Poster)
-                .Filter(p => !string.IsNullOrWhiteSpace(p) && File.Exists(p))
-                .Map(_ => mediaItem)
-                .ToValidation<BaseError>($"MediaItem {mediaItem.Id} does not have a poster");
-    }
-}

ErsatzTV.Core/Metadata/LocalPosterProvider.cs

@@ -56,7 +56,19 @@ namespace ErsatzTV.Core.Metadata
             return None;
         }
 
-        private Option<string> RefreshTelevisionPoster(MediaItem mediaItem) => 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)
         {

ErsatzTV.Infrastructure/Data/Repositories/MediaItemRepository.cs

@@ -62,7 +62,7 @@ LIMIT {0} OFFSET {1}",
     Metadata_Title AS Title,
     Metadata_SortTitle AS SortTitle,
     count(*) || ' Episodes' AS Subtitle,
-    Poster
+    min(Poster) AS Poster
 FROM MediaItems WHERE Metadata_MediaType=1
 GROUP BY Metadata_Title, Metadata_SortTitle
 ORDER BY Metadata_SortTitle