Metadata-Site Search (Interactive linking)

API/Controllers/MetadataFetcherController.cs

@@ -4,6 +4,7 @@ using API.Schema.MetadataFetchers;
 using Asp.Versioning;
 using log4net;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.ModelBinding;
 using static Microsoft.AspNetCore.Http.StatusCodes;
 // ReSharper disable InconsistentNaming
 
@@ -38,62 +39,119 @@ public class MetadataFetcherController(PgsqlContext context, ILog Log) : Control
     }
 
     /// <summary>
-    /// Tries linking a Manga to a Metadata-Provider-Site
+    /// Searches Metadata-Provider for Manga-Metadata
     /// </summary>
+    /// <param name="searchTerm">Instead of using the Manga for search, use a specific term</param>
     /// <response code="200"></response>
     /// <response code="400">Metadata-fetcher with Name does not exist</response>
     /// <response code="404">Manga with ID not found</response>
-    /// <response code="417">Could not find Entry on Metadata-Provider for Manga</response>
-    /// <response code="500">Error during Database Operation</response>
-    [HttpPost("{MetadataFetcherName}/{MangaId}/TryLink")]
-    [ProducesResponseType<MetadataEntry>(Status200OK, "application/json")]
+    [HttpPost("{MetadataFetcherName}/SearchManga/{MangaId}")]
+    [ProducesResponseType<MetadataSearchResult[]>(Status200OK, "application/json")]
     [ProducesResponseType(Status400BadRequest)]
     [ProducesResponseType(Status404NotFound)]
-    [ProducesResponseType(Status417ExpectationFailed)]
-    [ProducesResponseType<string>(Status500InternalServerError, "text/plain")]
-    public IActionResult LinkMangaToMetadataFetcher(string MangaId, string MetadataFetcherName)
+    public IActionResult SearchMangaMetadata(string MangaId, string MetadataFetcherName, [FromBody(EmptyBodyBehavior = EmptyBodyBehavior.Allow)]string? searchTerm = null)
     {
         if(context.Mangas.Find(MangaId) is not { } manga)
             return NotFound();
         if(Tranga.MetadataFetchers.FirstOrDefault(f => f.MetadataFetcherName == MetadataFetcherName) is not { } fetcher)
             return BadRequest();
-        if (!fetcher.TryGetMetadataEntry(manga, out MetadataEntry? entry))
-        {
-            return StatusCode(Status417ExpectationFailed, "Metadata entry not found");
-        }
 
+        MetadataSearchResult[] searchResults = searchTerm is null ? fetcher.SearchMetadataEntry(manga) : fetcher.SearchMetadataEntry(searchTerm);
+        return Ok(searchResults);
+    }
+
+    /// <summary>
+    /// Links Metadata-Provider using Provider-Specific Identifier to Manga
+    /// </summary>
+    /// <response code="200"></response>
+    /// <response code="400">Metadata-fetcher with Name does not exist</response>
+    /// <response code="404">Manga with ID not found</response>
+    /// <response code="500">Error during Database Operation</response>
+    [HttpPost("{MetadataFetcherName}/Link/{MangaId}")]
+    [ProducesResponseType(Status200OK)]
+    [ProducesResponseType(Status400BadRequest)]
+    [ProducesResponseType(Status404NotFound)]
+    [ProducesResponseType<string>(Status500InternalServerError, "text/plain")]
+    public IActionResult LinkMangaMetadata(string MangaId, string MetadataFetcherName, [FromBody]string Identifier)
+    {
+        if(context.Mangas.Find(MangaId) is not { } manga)
+            return NotFound();
+        if(Tranga.MetadataFetchers.FirstOrDefault(f => f.MetadataFetcherName == MetadataFetcherName) is not { } fetcher)
+            return BadRequest();
+        MetadataEntry entry = fetcher.CreateMetadataEntry(manga, Identifier);
+        
         try
         {
-            //Unlink previous metadata-entries
-            IQueryable<MetadataEntry> metadataEntries = context.MetadataEntries.Where(e => e.MangaId == MangaId);
-            context.MetadataEntries.RemoveRange(metadataEntries);
-            //Add new metadata-entry
             context.MetadataEntries.Add(entry);
             context.SaveChanges();
-            return Ok(entry);
         }
         catch (Exception e)
         {
             Log.Error(e);
             return StatusCode(500, e.Message);
         }
+        return Ok();
+    }
+
+    /// <summary>
+    /// Un-Links Metadata-Provider using Provider-Specific Identifier to Manga
+    /// </summary>
+    /// <response code="200"></response>
+    /// <response code="400">Metadata-fetcher with Name does not exist</response>
+    /// <response code="404">Manga with ID not found</response>
+    /// <response code="412">No Entry linking Manga and Metadata-Provider found</response>
+    /// <response code="500">Error during Database Operation</response>
+    [HttpPost("{MetadataFetcherName}/Unlink/{MangaId}")]
+    [ProducesResponseType(Status200OK)]
+    [ProducesResponseType(Status400BadRequest)]
+    [ProducesResponseType(Status404NotFound)]
+    [ProducesResponseType<string>(Status412PreconditionFailed, "text/plain")]
+    [ProducesResponseType<string>(Status500InternalServerError, "text/plain")]
+    public IActionResult UnlinkMangaMetadata(string MangaId, string MetadataFetcherName)
+    {
+        if(context.Mangas.Find(MangaId) is not { } manga)
+            return NotFound();
+        if(Tranga.MetadataFetchers.FirstOrDefault(f => f.MetadataFetcherName == MetadataFetcherName) is not { } fetcher)
+            return BadRequest();
+        MetadataEntry? entry = context.MetadataEntries.FirstOrDefault(e => e.MangaId == MangaId && e.MetadataFetcherName == MetadataFetcherName);
+        if (entry is null)
+            return StatusCode(Status412PreconditionFailed, "No entry found");
+        try
+        {
+            context.MetadataEntries.Remove(entry);
+            context.SaveChanges();
+        }
+        catch (Exception e)
+        {
+            Log.Error(e);
+            return StatusCode(500, e.Message);
+        }
+        return Ok();
     }
 
     /// <summary>
     /// Tries linking a Manga to a Metadata-Provider-Site
     /// </summary>
     /// <response code="200"></response>
-    /// <response code="400">Manga has no linked entry with MetadataFetcher</response>
+    /// <response code="400">MetadataFetcher Name is invalid</response>
+    /// <response code="404">Manga has no linked entry with MetadataFetcher</response>
     /// <response code="500">Error during Database Operation</response>
     [HttpPost("{MetadataFetcherName}/{MangaId}/UpdateMetadata")]
     [ProducesResponseType(Status200OK)]
     [ProducesResponseType(Status400BadRequest)]
+    [ProducesResponseType(Status404NotFound)]
     [ProducesResponseType<string>(Status500InternalServerError, "text/plain")]
     public IActionResult UpdateMetadata(string MangaId, string MetadataFetcherName)
     {
-        if(context.MetadataEntries.Find(MangaId, MetadataFetcherName) is not { } entry)
+        if(Tranga.MetadataFetchers
+               .FirstOrDefault(f =>
+                   f.MetadataFetcherName.Equals(MetadataFetcherName, StringComparison.InvariantCultureIgnoreCase)) is not { } fetcher)
             return BadRequest();
-        MetadataFetcher fetcher = Tranga.MetadataFetchers.FirstOrDefault(f => f.MetadataFetcherName == MetadataFetcherName)!;
+        MetadataEntry? entry = context.MetadataEntries
+            .FirstOrDefault(e =>
+                e.MangaId == MangaId && e.MetadataFetcherName.Equals(MetadataFetcherName, StringComparison.InvariantCultureIgnoreCase));
+        if (entry is null)
+            return NotFound();
         try
         {
             fetcher.UpdateMetadata(entry, context);

API/Migrations/pgsql/20250629184056_MetadataEntry-PrimaryKeyChange.Designer.cs

@@ -0,0 +1,788 @@
+// <auto-generated />
+using System;
+using API.Schema.Contexts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace API.Migrations.pgsql
+{
+    [DbContext(typeof(PgsqlContext))]
+    [Migration("20250629184056_MetadataEntry-PrimaryKeyChange")]
+    partial class MetadataEntryPrimaryKeyChange
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.5")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("API.Schema.Author", b =>
+                {
+                    b.Property<string>("AuthorId")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("AuthorName")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.HasKey("AuthorId");
+
+                    b.ToTable("Authors");
+                });
+
+            modelBuilder.Entity("API.Schema.Chapter", b =>
+                {
+                    b.Property<string>("ChapterId")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("ChapterNumber")
+                        .IsRequired()
+                        .HasMaxLength(10)
+                        .HasColumnType("character varying(10)");
+
+                    b.Property<bool>("Downloaded")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("FileName")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("IdOnConnectorSite")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("ParentMangaId")
+                        .IsRequired()
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Title")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("Url")
+                        .IsRequired()
+                        .HasMaxLength(2048)
+                        .HasColumnType("character varying(2048)");
+
+                    b.Property<int?>("VolumeNumber")
+                        .HasColumnType("integer");
+
+                    b.HasKey("ChapterId");
+
+                    b.HasIndex("ParentMangaId");
+
+                    b.ToTable("Chapters");
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.Job", b =>
+                {
+                    b.Property<string>("JobId")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<bool>("Enabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<byte>("JobType")
+                        .HasColumnType("smallint");
+
+                    b.Property<DateTime>("LastExecution")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ParentJobId")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<decimal>("RecurrenceMs")
+                        .HasColumnType("numeric(20,0)");
+
+                    b.Property<byte>("state")
+                        .HasColumnType("smallint");
+
+                    b.HasKey("JobId");
+
+                    b.HasIndex("ParentJobId");
+
+                    b.ToTable("Jobs");
+
+                    b.HasDiscriminator<byte>("JobType");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("API.Schema.LocalLibrary", b =>
+                {
+                    b.Property<string>("LocalLibraryId")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("BasePath")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("LibraryName")
+                        .IsRequired()
+                        .HasMaxLength(512)
+                        .HasColumnType("character varying(512)");
+
+                    b.HasKey("LocalLibraryId");
+
+                    b.ToTable("LocalLibraries");
+                });
+
+            modelBuilder.Entity("API.Schema.Manga", b =>
+                {
+                    b.Property<string>("MangaId")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("CoverFileNameInCache")
+                        .HasMaxLength(512)
+                        .HasColumnType("character varying(512)");
+
+                    b.Property<string>("CoverUrl")
+                        .IsRequired()
+                        .HasMaxLength(512)
+                        .HasColumnType("character varying(512)");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("DirectoryName")
+                        .IsRequired()
+                        .HasMaxLength(1024)
+                        .HasColumnType("character varying(1024)");
+
+                    b.Property<string>("IdOnConnectorSite")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<float>("IgnoreChaptersBefore")
+                        .HasColumnType("real");
+
+                    b.Property<string>("LibraryId")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("MangaConnectorName")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(512)
+                        .HasColumnType("character varying(512)");
+
+                    b.Property<string>("OriginalLanguage")
+                        .HasMaxLength(8)
+                        .HasColumnType("character varying(8)");
+
+                    b.Property<byte>("ReleaseStatus")
+                        .HasColumnType("smallint");
+
+                    b.Property<string>("WebsiteUrl")
+                        .IsRequired()
+                        .HasMaxLength(512)
+                        .HasColumnType("character varying(512)");
+
+                    b.Property<long?>("Year")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("MangaId");
+
+                    b.HasIndex("LibraryId");
+
+                    b.HasIndex("MangaConnectorName");
+
+                    b.ToTable("Mangas");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaConnectors.MangaConnector", b =>
+                {
+                    b.Property<string>("Name")
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.PrimitiveCollection<string[]>("BaseUris")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("text[]");
+
+                    b.Property<bool>("Enabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("IconUrl")
+                        .IsRequired()
+                        .HasMaxLength(2048)
+                        .HasColumnType("character varying(2048)");
+
+                    b.PrimitiveCollection<string[]>("SupportedLanguages")
+                        .IsRequired()
+                        .HasMaxLength(8)
+                        .HasColumnType("text[]");
+
+                    b.HasKey("Name");
+
+                    b.ToTable("MangaConnectors");
+
+                    b.HasDiscriminator<string>("Name").HasValue("MangaConnector");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("API.Schema.MangaTag", b =>
+                {
+                    b.Property<string>("Tag")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.HasKey("Tag");
+
+                    b.ToTable("Tags");
+                });
+
+            modelBuilder.Entity("API.Schema.MetadataFetchers.MetadataEntry", b =>
+                {
+                    b.Property<string>("MetadataFetcherName")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Identifier")
+                        .HasColumnType("text");
+
+                    b.Property<string>("MangaId")
+                        .IsRequired()
+                        .HasColumnType("character varying(64)");
+
+                    b.HasKey("MetadataFetcherName", "Identifier");
+
+                    b.HasIndex("MangaId");
+
+                    b.ToTable("MetadataEntries");
+                });
+
+            modelBuilder.Entity("API.Schema.MetadataFetchers.MetadataFetcher", b =>
+                {
+                    b.Property<string>("MetadataFetcherName")
+                        .HasColumnType("text");
+
+                    b.Property<string>("MetadataEntry")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("character varying(21)");
+
+                    b.HasKey("MetadataFetcherName");
+
+                    b.ToTable("MetadataFetcher");
+
+                    b.HasDiscriminator<string>("MetadataEntry").HasValue("MetadataFetcher");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("AuthorToManga", b =>
+                {
+                    b.Property<string>("AuthorIds")
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("MangaIds")
+                        .HasColumnType("character varying(64)");
+
+                    b.HasKey("AuthorIds", "MangaIds");
+
+                    b.HasIndex("MangaIds");
+
+                    b.ToTable("AuthorToManga");
+                });
+
+            modelBuilder.Entity("JobJob", b =>
+                {
+                    b.Property<string>("DependsOnJobsJobId")
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("JobId")
+                        .HasColumnType("character varying(64)");
+
+                    b.HasKey("DependsOnJobsJobId", "JobId");
+
+                    b.HasIndex("JobId");
+
+                    b.ToTable("JobJob");
+                });
+
+            modelBuilder.Entity("MangaTagToManga", b =>
+                {
+                    b.Property<string>("MangaTagIds")
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("MangaIds")
+                        .HasColumnType("character varying(64)");
+
+                    b.HasKey("MangaTagIds", "MangaIds");
+
+                    b.HasIndex("MangaIds");
+
+                    b.ToTable("MangaTagToManga");
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.DownloadAvailableChaptersJob", b =>
+                {
+                    b.HasBaseType("API.Schema.Jobs.Job");
+
+                    b.Property<string>("MangaId")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.HasIndex("MangaId");
+
+                    b.ToTable("Jobs", t =>
+                        {
+                            t.Property("MangaId")
+                                .HasColumnName("DownloadAvailableChaptersJob_MangaId");
+                        });
+
+                    b.HasDiscriminator().HasValue((byte)1);
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.DownloadMangaCoverJob", b =>
+                {
+                    b.HasBaseType("API.Schema.Jobs.Job");
+
+                    b.Property<string>("MangaId")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.HasIndex("MangaId");
+
+                    b.HasDiscriminator().HasValue((byte)4);
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.DownloadSingleChapterJob", b =>
+                {
+                    b.HasBaseType("API.Schema.Jobs.Job");
+
+                    b.Property<string>("ChapterId")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.HasIndex("ChapterId");
+
+                    b.HasDiscriminator().HasValue((byte)0);
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.MoveFileOrFolderJob", b =>
+                {
+                    b.HasBaseType("API.Schema.Jobs.Job");
+
+                    b.Property<string>("FromLocation")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("ToLocation")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.HasDiscriminator().HasValue((byte)3);
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.MoveMangaLibraryJob", b =>
+                {
+                    b.HasBaseType("API.Schema.Jobs.Job");
+
+                    b.Property<string>("MangaId")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("ToLibraryId")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.HasIndex("MangaId");
+
+                    b.HasIndex("ToLibraryId");
+
+                    b.ToTable("Jobs", t =>
+                        {
+                            t.Property("MangaId")
+                                .HasColumnName("MoveMangaLibraryJob_MangaId");
+                        });
+
+                    b.HasDiscriminator().HasValue((byte)7);
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.RetrieveChaptersJob", b =>
+                {
+                    b.HasBaseType("API.Schema.Jobs.Job");
+
+                    b.Property<string>("Language")
+                        .IsRequired()
+                        .HasMaxLength(8)
+                        .HasColumnType("character varying(8)");
+
+                    b.Property<string>("MangaId")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.HasIndex("MangaId");
+
+                    b.ToTable("Jobs", t =>
+                        {
+                            t.Property("MangaId")
+                                .HasColumnName("RetrieveChaptersJob_MangaId");
+                        });
+
+                    b.HasDiscriminator().HasValue((byte)5);
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.UpdateChaptersDownloadedJob", b =>
+                {
+                    b.HasBaseType("API.Schema.Jobs.Job");
+
+                    b.Property<string>("MangaId")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.HasIndex("MangaId");
+
+                    b.ToTable("Jobs", t =>
+                        {
+                            t.Property("MangaId")
+                                .HasColumnName("UpdateChaptersDownloadedJob_MangaId");
+                        });
+
+                    b.HasDiscriminator().HasValue((byte)6);
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.UpdateCoverJob", b =>
+                {
+                    b.HasBaseType("API.Schema.Jobs.Job");
+
+                    b.Property<string>("MangaId")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.HasIndex("MangaId");
+
+                    b.ToTable("Jobs", t =>
+                        {
+                            t.Property("MangaId")
+                                .HasColumnName("UpdateCoverJob_MangaId");
+                        });
+
+                    b.HasDiscriminator().HasValue((byte)9);
+                });
+
+            modelBuilder.Entity("API.Schema.MangaConnectors.ComickIo", b =>
+                {
+                    b.HasBaseType("API.Schema.MangaConnectors.MangaConnector");
+
+                    b.HasDiscriminator().HasValue("ComickIo");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaConnectors.Global", b =>
+                {
+                    b.HasBaseType("API.Schema.MangaConnectors.MangaConnector");
+
+                    b.HasDiscriminator().HasValue("Global");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaConnectors.MangaDex", b =>
+                {
+                    b.HasBaseType("API.Schema.MangaConnectors.MangaConnector");
+
+                    b.HasDiscriminator().HasValue("MangaDex");
+                });
+
+            modelBuilder.Entity("API.Schema.MetadataFetchers.MyAnimeList", b =>
+                {
+                    b.HasBaseType("API.Schema.MetadataFetchers.MetadataFetcher");
+
+                    b.HasDiscriminator().HasValue("MyAnimeList");
+                });
+
+            modelBuilder.Entity("API.Schema.Chapter", b =>
+                {
+                    b.HasOne("API.Schema.Manga", "ParentManga")
+                        .WithMany("Chapters")
+                        .HasForeignKey("ParentMangaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("ParentManga");
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.Job", b =>
+                {
+                    b.HasOne("API.Schema.Jobs.Job", "ParentJob")
+                        .WithMany()
+                        .HasForeignKey("ParentJobId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
+                    b.Navigation("ParentJob");
+                });
+
+            modelBuilder.Entity("API.Schema.Manga", b =>
+                {
+                    b.HasOne("API.Schema.LocalLibrary", "Library")
+                        .WithMany()
+                        .HasForeignKey("LibraryId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.HasOne("API.Schema.MangaConnectors.MangaConnector", "MangaConnector")
+                        .WithMany()
+                        .HasForeignKey("MangaConnectorName")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.OwnsMany("API.Schema.Link", "Links", b1 =>
+                        {
+                            b1.Property<string>("LinkId")
+                                .HasMaxLength(64)
+                                .HasColumnType("character varying(64)");
+
+                            b1.Property<string>("LinkProvider")
+                                .IsRequired()
+                                .HasMaxLength(64)
+                                .HasColumnType("character varying(64)");
+
+                            b1.Property<string>("LinkUrl")
+                                .IsRequired()
+                                .HasMaxLength(2048)
+                                .HasColumnType("character varying(2048)");
+
+                            b1.Property<string>("MangaId")
+                                .IsRequired()
+                                .HasColumnType("character varying(64)");
+
+                            b1.HasKey("LinkId");
+
+                            b1.HasIndex("MangaId");
+
+                            b1.ToTable("Link");
+
+                            b1.WithOwner()
+                                .HasForeignKey("MangaId");
+                        });
+
+                    b.OwnsMany("API.Schema.MangaAltTitle", "AltTitles", b1 =>
+                        {
+                            b1.Property<string>("AltTitleId")
+                                .HasMaxLength(64)
+                                .HasColumnType("character varying(64)");
+
+                            b1.Property<string>("Language")
+                                .IsRequired()
+                                .HasMaxLength(8)
+                                .HasColumnType("character varying(8)");
+
+                            b1.Property<string>("MangaId")
+                                .IsRequired()
+                                .HasColumnType("character varying(64)");
+
+                            b1.Property<string>("Title")
+                                .IsRequired()
+                                .HasMaxLength(256)
+                                .HasColumnType("character varying(256)");
+
+                            b1.HasKey("AltTitleId");
+
+                            b1.HasIndex("MangaId");
+
+                            b1.ToTable("MangaAltTitle");
+
+                            b1.WithOwner()
+                                .HasForeignKey("MangaId");
+                        });
+
+                    b.Navigation("AltTitles");
+
+                    b.Navigation("Library");
+
+                    b.Navigation("Links");
+
+                    b.Navigation("MangaConnector");
+                });
+
+            modelBuilder.Entity("API.Schema.MetadataFetchers.MetadataEntry", b =>
+                {
+                    b.HasOne("API.Schema.Manga", "Manga")
+                        .WithMany()
+                        .HasForeignKey("MangaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("API.Schema.MetadataFetchers.MetadataFetcher", "MetadataFetcher")
+                        .WithMany()
+                        .HasForeignKey("MetadataFetcherName")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Manga");
+
+                    b.Navigation("MetadataFetcher");
+                });
+
+            modelBuilder.Entity("AuthorToManga", b =>
+                {
+                    b.HasOne("API.Schema.Author", null)
+                        .WithMany()
+                        .HasForeignKey("AuthorIds")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("API.Schema.Manga", null)
+                        .WithMany()
+                        .HasForeignKey("MangaIds")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("JobJob", b =>
+                {
+                    b.HasOne("API.Schema.Jobs.Job", null)
+                        .WithMany()
+                        .HasForeignKey("DependsOnJobsJobId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("API.Schema.Jobs.Job", null)
+                        .WithMany()
+                        .HasForeignKey("JobId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("MangaTagToManga", b =>
+                {
+                    b.HasOne("API.Schema.Manga", null)
+                        .WithMany()
+                        .HasForeignKey("MangaIds")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("API.Schema.MangaTag", null)
+                        .WithMany()
+                        .HasForeignKey("MangaTagIds")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.DownloadAvailableChaptersJob", b =>
+                {
+                    b.HasOne("API.Schema.Manga", "Manga")
+                        .WithMany()
+                        .HasForeignKey("MangaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Manga");
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.DownloadMangaCoverJob", b =>
+                {
+                    b.HasOne("API.Schema.Manga", "Manga")
+                        .WithMany()
+                        .HasForeignKey("MangaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Manga");
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.DownloadSingleChapterJob", b =>
+                {
+                    b.HasOne("API.Schema.Chapter", "Chapter")
+                        .WithMany()
+                        .HasForeignKey("ChapterId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Chapter");
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.MoveMangaLibraryJob", b =>
+                {
+                    b.HasOne("API.Schema.Manga", "Manga")
+                        .WithMany()
+                        .HasForeignKey("MangaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("API.Schema.LocalLibrary", "ToLibrary")
+                        .WithMany()
+                        .HasForeignKey("ToLibraryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Manga");
+
+                    b.Navigation("ToLibrary");
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.RetrieveChaptersJob", b =>
+                {
+                    b.HasOne("API.Schema.Manga", "Manga")
+                        .WithMany()
+                        .HasForeignKey("MangaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Manga");
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.UpdateChaptersDownloadedJob", b =>
+                {
+                    b.HasOne("API.Schema.Manga", "Manga")
+                        .WithMany()
+                        .HasForeignKey("MangaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Manga");
+                });
+
+            modelBuilder.Entity("API.Schema.Jobs.UpdateCoverJob", b =>
+                {
+                    b.HasOne("API.Schema.Manga", "Manga")
+                        .WithMany()
+                        .HasForeignKey("MangaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Manga");
+                });
+
+            modelBuilder.Entity("API.Schema.Manga", b =>
+                {
+                    b.Navigation("Chapters");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

API/Migrations/pgsql/20250629184056_MetadataEntry-PrimaryKeyChange.cs

@@ -0,0 +1,54 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace API.Migrations.pgsql
+{
+    /// <inheritdoc />
+    public partial class MetadataEntryPrimaryKeyChange : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropPrimaryKey(
+                name: "PK_MetadataEntries",
+                table: "MetadataEntries");
+
+            migrationBuilder.DropIndex(
+                name: "IX_MetadataEntries_MetadataFetcherName",
+                table: "MetadataEntries");
+
+            migrationBuilder.AddPrimaryKey(
+                name: "PK_MetadataEntries",
+                table: "MetadataEntries",
+                columns: new[] { "MetadataFetcherName", "Identifier" });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_MetadataEntries_MangaId",
+                table: "MetadataEntries",
+                column: "MangaId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropPrimaryKey(
+                name: "PK_MetadataEntries",
+                table: "MetadataEntries");
+
+            migrationBuilder.DropIndex(
+                name: "IX_MetadataEntries_MangaId",
+                table: "MetadataEntries");
+
+            migrationBuilder.AddPrimaryKey(
+                name: "PK_MetadataEntries",
+                table: "MetadataEntries",
+                columns: new[] { "MangaId", "MetadataFetcherName" });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_MetadataEntries_MetadataFetcherName",
+                table: "MetadataEntries",
+                column: "MetadataFetcherName");
+        }
+    }
+}

API/Migrations/pgsql/PgsqlContextModelSnapshot.cs

@@ -257,19 +257,19 @@ namespace API.Migrations.pgsql
 
             modelBuilder.Entity("API.Schema.MetadataFetchers.MetadataEntry", b =>
                 {
-                    b.Property<string>("MangaId")
-                        .HasColumnType("character varying(64)");
-
                     b.Property<string>("MetadataFetcherName")
                         .HasColumnType("text");
 
                     b.Property<string>("Identifier")
-                        .IsRequired()
                         .HasColumnType("text");
 
-                    b.HasKey("MangaId", "MetadataFetcherName");
+                    b.Property<string>("MangaId")
+                        .IsRequired()
+                        .HasColumnType("character varying(64)");
 
-                    b.HasIndex("MetadataFetcherName");
+                    b.HasKey("MetadataFetcherName", "Identifier");
+
+                    b.HasIndex("MangaId");
 
                     b.ToTable("MetadataEntries");
                 });

API/Schema/MetadataFetchers/MetadataEntry.cs

@@ -3,7 +3,7 @@ using Newtonsoft.Json;
 
 namespace API.Schema.MetadataFetchers;
 
-[PrimaryKey("MangaId", "MetadataFetcherName")]
+[PrimaryKey("MetadataFetcherName", "Identifier")]
 public class MetadataEntry
 {
     [JsonIgnore]

API/Schema/MetadataFetchers/MetadataFetcher.cs

@@ -22,14 +22,13 @@ public abstract class MetadataFetcher
     {
         this.MetadataFetcherName = metadataFetcherName;
     }
-    
-    public abstract MetadataEntry? FindLinkedMetadataEntry(Manga manga);
 
-    public bool TryGetMetadataEntry(Manga manga, [NotNullWhen(true)] out MetadataEntry? metadataEntry)
-    {
-        metadataEntry = FindLinkedMetadataEntry(manga);
-        return metadataEntry != null;
-    }
+    internal MetadataEntry CreateMetadataEntry(Manga manga, string identifier) =>
+        new (this, manga, identifier);
+    
+    public abstract MetadataSearchResult[] SearchMetadataEntry(Manga manga);
+    
+    public abstract MetadataSearchResult[] SearchMetadataEntry(string searchTerm);
 
     /// <summary>
     /// Updates the Manga linked in the MetadataEntry

API/Schema/MetadataFetchers/MetadataSearchResult.cs

@@ -0,0 +1,3 @@
+namespace API.Schema.MetadataFetchers;
+
+public record MetadataSearchResult(string Identifier, string Name, string Url, string? Description = null, string? CoverUrl = null);

API/Schema/MetadataFetchers/MyAnimeList.cs

@@ -10,7 +10,7 @@ public class MyAnimeList : MetadataFetcher
     private static readonly Jikan Jikan = new ();
     private static readonly Regex GetIdFromUrl = new(@"https?:\/\/myanimelist\.net\/manga\/([0-9]+)\/?.*");
     
-    public override MetadataEntry? FindLinkedMetadataEntry(Manga manga)
+    public override MetadataSearchResult[] SearchMetadataEntry(Manga manga)
     {
         if (manga.Links.Any(link => link.LinkProvider.Equals("MyAnimeList", StringComparison.InvariantCultureIgnoreCase)))
         {
@@ -19,14 +19,23 @@ public class MyAnimeList : MetadataFetcher
             if (m.Success && m.Groups[1].Success)
             {
                 long id = long.Parse(m.Groups[1].Value);
-                return new MetadataEntry(this, manga, id.ToString()!);
+                JikanDotNet.Manga data = Jikan.GetMangaAsync(id).Result.Data;
+                return [new MetadataSearchResult(id.ToString(), data.Titles.First().Title, data.Url, data.Synopsis)];
             }
         }
 
-        ICollection<JikanDotNet.Manga> resultData = Jikan.SearchMangaAsync(manga.Name).Result.Data;
+        return SearchMetadataEntry(manga.Name);
+    }
+
+    public override MetadataSearchResult[] SearchMetadataEntry(string searchTerm)
+    {
+        
+        ICollection<JikanDotNet.Manga> resultData = Jikan.SearchMangaAsync(searchTerm).Result.Data;
         if (resultData.Count < 1)
-            return null;
-        return new MetadataEntry(this, manga, resultData.First().MalId.ToString());
+            return [];
+        return resultData.Select(data =>
+                new MetadataSearchResult(data.MalId.ToString(), data.Titles.First().Title, data.Url, data.Synopsis))
+            .ToArray();
     }
 
     /// <summary>