Added API Artwork Router (#1776)

* Added API Artwork Router

* Simplifying code

ErsatzTV.Application/Artworks/Queries/GetArtwork.cs

@@ -0,0 +1,6 @@
+using ErsatzTV.Core;
+using ErsatzTV.Core.Domain;
+
+namespace ErsatzTV.Application.Artworks;
+
+public record GetArtwork(int Id) : IRequest<Either<BaseError, Artwork>>;

ErsatzTV.Application/Artworks/Queries/GetArtworkHandler.cs

@@ -0,0 +1,42 @@
+using ErsatzTV.Core;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Infrastructure.Data;
+using ErsatzTV.Infrastructure.Extensions;
+using Microsoft.EntityFrameworkCore;
+
+namespace ErsatzTV.Application.Artworks;
+
+public class GetArtworkHandler(IDbContextFactory<TvContext> dbContextFactory) : IRequestHandler<GetArtwork, Either<BaseError, Artwork>>
+{
+    private readonly IDbContextFactory<TvContext> _dbContextFactory = dbContextFactory;
+
+    public async Task<Either<BaseError, Artwork>> Handle(
+        GetArtwork request, 
+        CancellationToken cancellationToken)
+    {
+        try {
+            await using TvContext dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken);
+
+            Option<Artwork> artwork = await dbContext.Artwork
+                .AsNoTracking()
+                .SelectOneAsync(a => a.Id, a => a.Id == request.Id)
+                .MapT(Project);
+            
+            return artwork.ToEither(BaseError.New("Artwork not found"));
+        
+        }
+        catch (Exception ex)
+        {
+            return BaseError.New(ex.ToString());
+        }
+    }
+
+    private static Artwork Project(Artwork artwork)
+    {
+        return new Artwork {
+            Id = artwork.Id,
+            Path = artwork.Path,
+            ArtworkKind = artwork.ArtworkKind
+        };
+    }
+}

ErsatzTV/Controllers/ArtworkController.cs

@@ -1,4 +1,5 @@
-using ErsatzTV.Application.Emby;
+using ErsatzTV.Application.Artworks;
+using ErsatzTV.Application.Emby;
 using ErsatzTV.Application.Images;
 using ErsatzTV.Application.Jellyfin;
 using ErsatzTV.Application.Plex;
@@ -26,6 +27,27 @@ public class ArtworkController : ControllerBase
         _httpClientFactory = httpClientFactory;
     }
 
+    [HttpHead("/artwork/{id}")]
+    [HttpGet("/artwork/{id}")]
+    // This route redirect to the proper artwork from its Id
+    public async Task<IActionResult> RedirectArtwork(int id, CancellationToken cancellationToken) {
+        Either<BaseError, Artwork> artwork =
+            await _mediator.Send(new GetArtwork(id), cancellationToken);
+
+        return artwork.Match<IActionResult>(
+            Left: _ => new NotFoundResult(),
+            Right: r => r.ArtworkKind switch
+                {
+                    ArtworkKind.Poster    => new RedirectResult("/artwork/posters/" + r.Path),
+                    ArtworkKind.Thumbnail => new RedirectResult("/artwork/thumbnails/" + r.Path),
+                    ArtworkKind.Logo      => new RedirectResult("/iptv/logos/" + r.Path),
+                    ArtworkKind.FanArt    => new RedirectResult("/artwork/fanart/" + r.Path),
+                    ArtworkKind.Watermark => new RedirectResult("/artwork/watermarks/" + r.Path),
+                    _ => new NotFoundResult()
+                }
+            );
+    }
+
     [HttpHead("/iptv/artwork/posters/{fileName}")]
     [HttpGet("/iptv/artwork/posters/{fileName}")]
     [HttpHead("/iptv/artwork/posters/{fileName}.jpg")]