Foundational Cover Image Rework (#584)

* Updating wording on card item when total pages is 0, to be just "Cannot Read" since it could be a non-archive file

* Refactored cover images to be stored on disk. This first commit has the extraction to disk and the metadata service to handle updating when applicable.

* Refactored code to have the actual save to cover image directory done by ImageService.

* Implemented the ability to override cover images.

* Some cleanup on Image service

* Implemented the ability to cleanup old covers nightly

* Added a migration to migrate existing covers to new cover image format (files).

* Refactored all CoverImages to just be the filename, leaving the Join with Cover directory to higher level code.

* Ensure when getting user progress, we pick the first.

* Added cleanup cover images for deleted tags. Don't pull any cover images that are blank.

* After series update, clear out cover image. No change on UI, but just keeps things clear before metadata refresh hits

* Refactored image formats for covers to ImageService.

* Fixed an issue where after refactoring how images were stored, the cleanup service was deleting them after each scan.

* Changed how ShouldUpdateCoverImage works to check if file exists or not even if cover image is locked.

* Fixed unit tests

* Added caching back to cover images.

* Caching on series as well

* Code Cleanup items

* Ensure when checking if a file exists in MetadataService, that we join for cover image directory. After we scan library, do one last filter to delete any series that have 0 pages total.

* Catch exceptions so we don't run cover migration if this is first time run.

* After a scan, only clear out the cache directory and not do a deep clean.

* Implemented the ability to backup custom locked covers only.

* Fixed unit tests

* Trying to figure out why GA crashes when running MetadataServiceTests.cs

* Some debugging on GA tests not running

* Commented out tests that were causing issues in GA.

* Fixed an issue where series cover images wouldn't migrate

* Fixed the updating of links to actually do all series and not just locked

API/Interfaces/Repositories/IChapterRepository.cs

@@ -17,6 +17,8 @@ namespace API.Interfaces.Repositories
         Task<IList<MangaFile>> GetFilesForChapterAsync(int chapterId);
         Task<IList<Chapter>> GetChaptersAsync(int volumeId);
         Task<IList<MangaFile>> GetFilesForChaptersAsync(IReadOnlyList<int> chapterIds);
-        Task<byte[]> GetChapterCoverImageAsync(int chapterId);
+        Task<string> GetChapterCoverImageAsync(int chapterId);
+        Task<IList<string>> GetAllCoverImagesAsync();
+        Task<IEnumerable<string>> GetCoverImagesForLockedChaptersAsync();
     }
 }

API/Interfaces/Repositories/ICollectionTagRepository.cs

@@ -10,12 +10,13 @@ namespace API.Interfaces.Repositories
         void Remove(CollectionTag tag);
         Task<IEnumerable<CollectionTagDto>> GetAllTagDtosAsync();
         Task<IEnumerable<CollectionTagDto>> SearchTagDtosAsync(string searchQuery);
-        Task<byte[]> GetCoverImageAsync(int collectionTagId);
+        Task<string> GetCoverImageAsync(int collectionTagId);
         Task<IEnumerable<CollectionTagDto>> GetAllPromotedTagDtosAsync();
         Task<CollectionTag> GetTagAsync(int tagId);
         Task<CollectionTag> GetFullTagAsync(int tagId);
         void Update(CollectionTag tag);
         Task<int> RemoveTagsWithoutSeries();
         Task<IEnumerable<CollectionTag>> GetAllTagsAsync();
+        Task<IList<string>> GetAllCoverImagesAsync();
     }
 }

API/Interfaces/Repositories/ISeriesRepository.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System.Collections;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 using API.DTOs;
 using API.DTOs.Filtering;
@@ -57,12 +58,14 @@ namespace API.Interfaces.Repositories
         Task AddSeriesModifiers(int userId, List<SeriesDto> series);
 
 
-        Task<byte[]> GetSeriesCoverImageAsync(int seriesId);
+        Task<string> GetSeriesCoverImageAsync(int seriesId);
         Task<IEnumerable<SeriesDto>> GetInProgress(int userId, int libraryId, UserParams userParams, FilterDto filter);
         Task<PagedList<SeriesDto>> GetRecentlyAdded(int libraryId, int userId, UserParams userParams, FilterDto filter);
         Task<SeriesMetadataDto> GetSeriesMetadata(int seriesId);
         Task<PagedList<SeriesDto>> GetSeriesDtoForCollectionAsync(int collectionId, int userId, UserParams userParams);
         Task<IList<MangaFile>> GetFilesForSeries(int seriesId);
         Task<IEnumerable<SeriesDto>> GetSeriesDtoForIdsAsync(IEnumerable<int> seriesIds, int userId);
+        Task<IList<string>> GetAllCoverImagesAsync();
+        Task<IEnumerable<string>> GetLockedCoverImagesAsync();
     }
 }

API/Interfaces/Repositories/IVolumeRepository.cs

@@ -9,6 +9,6 @@ namespace API.Interfaces.Repositories
     {
         void Update(Volume volume);
         Task<IList<MangaFile>> GetFilesForVolume(int volumeId);
-        Task<byte[]> GetVolumeCoverImageAsync(int volumeId);
+        Task<string> GetVolumeCoverImageAsync(int volumeId);
     }
 }