Chapter filename is set only when download happens

https://github.com/C9Glax/tranga/issues/466

API/Controllers/DTOs/Chapter.cs

@@ -6,7 +6,7 @@ namespace API.Controllers.DTOs;
 /// <summary>
 /// <see cref="API.Schema.MangaContext.Chapter"/> DTO
 /// </summary>
-public sealed record Chapter(string Key, string MangaId, int? Volume, string ChapterNumber, string? Title, IEnumerable<MangaConnectorId> MangaConnectorIds, bool Downloaded, string FileName) : Identifiable(Key)
+public sealed record Chapter(string Key, string MangaId, int? Volume, string ChapterNumber, string? Title, IEnumerable<MangaConnectorId> MangaConnectorIds, bool Downloaded, string? FileName) : Identifiable(Key)
 {
     /// <summary>
     /// Identifier of the Manga this Chapter belongs to
@@ -53,7 +53,6 @@ public sealed record Chapter(string Key, string MangaId, int? Volume, string Cha
     /// <summary>
     /// Filename of the archive
     /// </summary>
-    [Required]
     [Description("Filename of the archive")]
-    public string FileName { get; init; } = FileName;
+    public string? FileName { get; init; } = FileName;
 }

API/Migrations/Manga/20251008220207_Chapter_Filename_is_set_own_download.Designer.cs

@@ -0,0 +1,541 @@
+// <auto-generated />
+using API.Schema.MangaContext;
+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.Manga
+{
+    [DbContext(typeof(MangaContext))]
+    [Migration("20251008220207_Chapter_Filename_is_set_own_download")]
+    partial class Chapter_Filename_is_set_own_download
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.9")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("API.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("MangaConnector");
+
+                    b.HasDiscriminator<string>("Name").HasValue("MangaConnector");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.Author", b =>
+                {
+                    b.Property<string>("Key")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("AuthorName")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.HasKey("Key");
+
+                    b.ToTable("Authors");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.Chapter", b =>
+                {
+                    b.Property<string>("Key")
+                        .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")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("ParentMangaId")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Title")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<int?>("VolumeNumber")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Key");
+
+                    b.HasIndex("ParentMangaId");
+
+                    b.ToTable("Chapters");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.FileLibrary", b =>
+                {
+                    b.Property<string>("Key")
+                        .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("Key");
+
+                    b.ToTable("FileLibraries");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.Manga", b =>
+                {
+                    b.Property<string>("Key")
+                        .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<float>("IgnoreChaptersBefore")
+                        .HasColumnType("real");
+
+                    b.Property<string>("LibraryId")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    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<long?>("Year")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Key");
+
+                    b.HasIndex("LibraryId");
+
+                    b.ToTable("Mangas");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.MangaConnectorId<API.Schema.MangaContext.Chapter>", b =>
+                {
+                    b.Property<string>("Key")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("IdOnConnectorSite")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("MangaConnectorName")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<string>("ObjId")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<bool>("UseForDownload")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("WebsiteUrl")
+                        .HasMaxLength(512)
+                        .HasColumnType("character varying(512)");
+
+                    b.HasKey("Key");
+
+                    b.HasIndex("ObjId");
+
+                    b.ToTable("MangaConnectorToChapter");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.MangaConnectorId<API.Schema.MangaContext.Manga>", b =>
+                {
+                    b.Property<string>("Key")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("IdOnConnectorSite")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("MangaConnectorName")
+                        .IsRequired()
+                        .HasMaxLength(32)
+                        .HasColumnType("character varying(32)");
+
+                    b.Property<string>("ObjId")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<bool>("UseForDownload")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("WebsiteUrl")
+                        .HasMaxLength(512)
+                        .HasColumnType("character varying(512)");
+
+                    b.HasKey("Key");
+
+                    b.HasIndex("ObjId");
+
+                    b.ToTable("MangaConnectorToManga");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.MangaTag", b =>
+                {
+                    b.Property<string>("Tag")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.HasKey("Tag");
+
+                    b.ToTable("Tags");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.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.MangaContext.MetadataFetchers.MetadataFetcher", b =>
+                {
+                    b.Property<string>("Name")
+                        .HasColumnType("text");
+
+                    b.Property<string>("MetadataEntry")
+                        .IsRequired()
+                        .HasMaxLength(21)
+                        .HasColumnType("character varying(21)");
+
+                    b.HasKey("Name");
+
+                    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("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.MangaConnectors.Global", b =>
+                {
+                    b.HasBaseType("API.MangaConnectors.MangaConnector");
+
+                    b.HasDiscriminator().HasValue("Global");
+                });
+
+            modelBuilder.Entity("API.MangaConnectors.MangaDex", b =>
+                {
+                    b.HasBaseType("API.MangaConnectors.MangaConnector");
+
+                    b.HasDiscriminator().HasValue("MangaDex");
+                });
+
+            modelBuilder.Entity("API.MangaConnectors.MangaPark", b =>
+                {
+                    b.HasBaseType("API.MangaConnectors.MangaConnector");
+
+                    b.HasDiscriminator().HasValue("MangaPark");
+                });
+
+            modelBuilder.Entity("API.MangaConnectors.Mangaworld", b =>
+                {
+                    b.HasBaseType("API.MangaConnectors.MangaConnector");
+
+                    b.HasDiscriminator().HasValue("Mangaworld");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.MetadataFetchers.MyAnimeList", b =>
+                {
+                    b.HasBaseType("API.Schema.MangaContext.MetadataFetchers.MetadataFetcher");
+
+                    b.HasDiscriminator().HasValue("MyAnimeList");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.Chapter", b =>
+                {
+                    b.HasOne("API.Schema.MangaContext.Manga", "ParentManga")
+                        .WithMany("Chapters")
+                        .HasForeignKey("ParentMangaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("ParentManga");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.Manga", b =>
+                {
+                    b.HasOne("API.Schema.MangaContext.FileLibrary", "Library")
+                        .WithMany()
+                        .HasForeignKey("LibraryId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.OwnsMany("API.Schema.MangaContext.AltTitle", "AltTitles", b1 =>
+                        {
+                            b1.Property<string>("Key")
+                                .HasMaxLength(64)
+                                .HasColumnType("character varying(64)");
+
+                            b1.Property<string>("Language")
+                                .IsRequired()
+                                .HasMaxLength(8)
+                                .HasColumnType("character varying(8)");
+
+                            b1.Property<string>("MangaKey")
+                                .IsRequired()
+                                .HasColumnType("character varying(64)");
+
+                            b1.Property<string>("Title")
+                                .IsRequired()
+                                .HasMaxLength(256)
+                                .HasColumnType("character varying(256)");
+
+                            b1.HasKey("Key");
+
+                            b1.HasIndex("MangaKey");
+
+                            b1.ToTable("AltTitle");
+
+                            b1.WithOwner()
+                                .HasForeignKey("MangaKey");
+                        });
+
+                    b.OwnsMany("API.Schema.MangaContext.Link", "Links", b1 =>
+                        {
+                            b1.Property<string>("Key")
+                                .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>("MangaKey")
+                                .IsRequired()
+                                .HasColumnType("character varying(64)");
+
+                            b1.HasKey("Key");
+
+                            b1.HasIndex("MangaKey");
+
+                            b1.ToTable("Link");
+
+                            b1.WithOwner()
+                                .HasForeignKey("MangaKey");
+                        });
+
+                    b.Navigation("AltTitles");
+
+                    b.Navigation("Library");
+
+                    b.Navigation("Links");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.MangaConnectorId<API.Schema.MangaContext.Chapter>", b =>
+                {
+                    b.HasOne("API.Schema.MangaContext.Chapter", "Obj")
+                        .WithMany("MangaConnectorIds")
+                        .HasForeignKey("ObjId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Obj");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.MangaConnectorId<API.Schema.MangaContext.Manga>", b =>
+                {
+                    b.HasOne("API.Schema.MangaContext.Manga", "Obj")
+                        .WithMany("MangaConnectorIds")
+                        .HasForeignKey("ObjId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Obj");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.MetadataFetchers.MetadataEntry", b =>
+                {
+                    b.HasOne("API.Schema.MangaContext.Manga", "Manga")
+                        .WithMany()
+                        .HasForeignKey("MangaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("API.Schema.MangaContext.MetadataFetchers.MetadataFetcher", "MetadataFetcher")
+                        .WithMany()
+                        .HasForeignKey("MetadataFetcherName")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Manga");
+
+                    b.Navigation("MetadataFetcher");
+                });
+
+            modelBuilder.Entity("AuthorToManga", b =>
+                {
+                    b.HasOne("API.Schema.MangaContext.Author", null)
+                        .WithMany()
+                        .HasForeignKey("AuthorIds")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("API.Schema.MangaContext.Manga", null)
+                        .WithMany()
+                        .HasForeignKey("MangaIds")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("MangaTagToManga", b =>
+                {
+                    b.HasOne("API.Schema.MangaContext.Manga", null)
+                        .WithMany()
+                        .HasForeignKey("MangaIds")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("API.Schema.MangaContext.MangaTag", null)
+                        .WithMany()
+                        .HasForeignKey("MangaTagIds")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.Chapter", b =>
+                {
+                    b.Navigation("MangaConnectorIds");
+                });
+
+            modelBuilder.Entity("API.Schema.MangaContext.Manga", b =>
+                {
+                    b.Navigation("Chapters");
+
+                    b.Navigation("MangaConnectorIds");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

API/Migrations/Manga/20251008220207_Chapter_Filename_is_set_own_download.cs

@@ -0,0 +1,40 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace API.Migrations.Manga
+{
+    /// <inheritdoc />
+    public partial class Chapter_Filename_is_set_own_download : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<string>(
+                name: "FileName",
+                table: "Chapters",
+                type: "character varying(256)",
+                maxLength: 256,
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "character varying(256)",
+                oldMaxLength: 256);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<string>(
+                name: "FileName",
+                table: "Chapters",
+                type: "character varying(256)",
+                maxLength: 256,
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "character varying(256)",
+                oldMaxLength: 256,
+                oldNullable: true);
+        }
+    }
+}

API/Migrations/Manga/MangaContextModelSnapshot.cs

@@ -16,7 +16,7 @@ namespace API.Migrations.Manga
         {
 #pragma warning disable 612, 618
             modelBuilder
-                .HasAnnotation("ProductVersion", "9.0.8")
+                .HasAnnotation("ProductVersion", "9.0.9")
                 .HasAnnotation("Relational:MaxIdentifierLength", 63);
 
             NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
@@ -85,7 +85,6 @@ namespace API.Migrations.Manga
                         .HasColumnType("boolean");
 
                     b.Property<string>("FileName")
-                        .IsRequired()
                         .HasMaxLength(256)
                         .HasColumnType("character varying(256)");
 
@@ -331,13 +330,6 @@ namespace API.Migrations.Manga
                     b.ToTable("MangaTagToManga");
                 });
 
-            modelBuilder.Entity("API.MangaConnectors.ComickIo", b =>
-                {
-                    b.HasBaseType("API.MangaConnectors.MangaConnector");
-
-                    b.HasDiscriminator().HasValue("ComickIo");
-                });
-
             modelBuilder.Entity("API.MangaConnectors.Global", b =>
                 {
                     b.HasBaseType("API.MangaConnectors.MangaConnector");
@@ -352,6 +344,20 @@ namespace API.Migrations.Manga
                     b.HasDiscriminator().HasValue("MangaDex");
                 });
 
+            modelBuilder.Entity("API.MangaConnectors.MangaPark", b =>
+                {
+                    b.HasBaseType("API.MangaConnectors.MangaConnector");
+
+                    b.HasDiscriminator().HasValue("MangaPark");
+                });
+
+            modelBuilder.Entity("API.MangaConnectors.Mangaworld", b =>
+                {
+                    b.HasBaseType("API.MangaConnectors.MangaConnector");
+
+                    b.HasDiscriminator().HasValue("Mangaworld");
+                });
+
             modelBuilder.Entity("API.Schema.MangaContext.MetadataFetchers.MyAnimeList", b =>
                 {
                     b.HasBaseType("API.Schema.MangaContext.MetadataFetchers.MetadataFetcher");

API/Schema/MangaContext/Chapter.cs

@@ -22,7 +22,7 @@ public class Chapter : Identifiable, IComparable<Chapter>
 
     [StringLength(256)] public string? Title { get; private set; }
 
-    [StringLength(256)] public string FileName { get; private set; }
+    [StringLength(256)] public string? FileName { get; private set; }
 
     public bool Downloaded { get; internal set; }
 
@@ -43,7 +43,6 @@ public class Chapter : Identifiable, IComparable<Chapter>
         this.MangaConnectorIds = [];
         this.VolumeNumber = volumeNumber;
         this.Title = title;
-        this.FileName = GetArchiveFilePath().CleanNameForWindows();
         this.Downloaded = false;
         this.MangaConnectorIds = [];
     }
@@ -51,7 +50,7 @@ public class Chapter : Identifiable, IComparable<Chapter>
     /// <summary>
     /// EF ONLY!!!
     /// </summary>
-    internal Chapter(string key, int? volumeNumber, string chapterNumber, string? title, string fileName, bool downloaded)
+    internal Chapter(string key, int? volumeNumber, string chapterNumber, string? title, string? fileName, bool downloaded)
         : base(key)
     {
         this.VolumeNumber = volumeNumber;
@@ -91,6 +90,8 @@ public class Chapter : Identifiable, IComparable<Chapter>
 
         if (chapter.ParentManga.Library is null)
             return false;
+        if (chapter.FileName is null)
+            return false;
         
         this.Downloaded = File.Exists(chapter.FullArchiveFilePath);
         await context.Sync(token??CancellationToken.None, GetType(), $"CheckDownloaded {this} {this.Downloaded}");
@@ -169,7 +170,7 @@ public class Chapter : Identifiable, IComparable<Chapter>
     {
         try
         {
-            return Path.Join(ParentManga.FullDirectoryPath, FileName);
+            return Path.Join(ParentManga.FullDirectoryPath, this.FileName is null ? GetArchiveFilePath() : FileName);
         }
         catch (Exception)
         {

API/Workers/MoveMangaLibraryWorker.cs

@@ -17,21 +17,13 @@ public class MoveMangaLibraryWorker(Manga manga, FileLibrary toLibrary, IEnumera
         // Get Manga (with and Library)
         if (await DbContext.Mangas
                 .Include(m => m.Library)
+                .Include(m => m.Chapters)
                 .FirstOrDefaultAsync(m => m.Key == MangaId, CancellationToken) is not { } manga)
         {
             Log.Error("Could not find Manga.");
             return [];
         }
         
-        if (await DbContext.Chapters
-                .Include(ch => ch.ParentManga).ThenInclude(m => m.Library)
-                .Where(ch => ch.ParentMangaId == MangaId)
-                .ToListAsync(CancellationToken) is not { } chapters)
-        {
-            Log.Error("Could not find chapters.");
-            return [];
-        }
-        
         // Get new Library
         if (await DbContext.FileLibraries.FirstOrDefaultAsync(l => l.Key == LibraryId, CancellationToken) is not { } toLibrary)
         {
@@ -40,7 +32,7 @@ public class MoveMangaLibraryWorker(Manga manga, FileLibrary toLibrary, IEnumera
         }
         
         // Save old Path (to later move chapters)
-        Dictionary<string, string> oldPath = manga.Chapters.ToDictionary(c => c.Key, c => c.FullArchiveFilePath).Where(kv => kv.Value is not null).ToDictionary(x => x.Key, x => x.Value)!;
+        Dictionary<string, string> oldPath = manga.Chapters.Where(c => c.FileName != null).ToDictionary(c => c.Key, c => c.FullArchiveFilePath)!;
         // Set new Path
         manga.Library = toLibrary;
         
@@ -48,7 +40,7 @@ public class MoveMangaLibraryWorker(Manga manga, FileLibrary toLibrary, IEnumera
             return [];
 
         // Create Jobs to move chapters from old to new Path
-        return manga.Chapters.Select(c => new MoveFileOrFolderWorker(c.FullArchiveFilePath, oldPath[c.Key])).ToArray<BaseWorker>();
+        return oldPath.Select(kv => new MoveFileOrFolderWorker(manga.Chapters.First(ch => ch.Key == kv.Key).FullArchiveFilePath!, kv.Value)).ToArray<BaseWorker>();
     }
 
     public override string ToString() => $"{base.ToString()} {MangaId} {LibraryId}";

API/openapi/API_v2.json

@@ -3406,7 +3406,6 @@
         "required": [
           "chapterNumber",
           "downloaded",
-          "fileName",
           "key",
           "mangaConnectorIds",
           "mangaId",
@@ -3447,9 +3446,9 @@
             "description": "Ids of the Manga on MangaConnectors"
           },
           "fileName": {
-            "minLength": 1,
             "type": "string",
-            "description": "Filename of the archive"
+            "description": "Filename of the archive",
+            "nullable": true
           },
           "key": {
             "maxLength": 64,