align with metadata standard

packages/meta-sort-core/src/config/RenamingRule.ts

@@ -26,7 +26,8 @@ export function renamingRule(metamesh: Local, filepath?: string): string | null
         throw new Error(`No extension found for file: ${filepath}`);
     }
 
-    const title = metamesh?.titles?.eng || metamesh.originalTitle;
+    // The display name — never the `titles/*` name set, which has no preferred member (METADATA_KEYS.md §3).
+    const title = metamesh.title || metamesh.originalTitle;
     if (!title) {
         if (metamesh.fileType !== "torrent") {
             //don't warn for torrent files because they don't always have a title (eg representing a folder of files)

packages/meta-sort-core/src/logic/MetadataFormatRegistry.ts

@@ -85,13 +85,10 @@ export class JellyfinFormatHandler implements IMetadataFormatHandler {
         if (metadata.originalTitle) jellyfinFields.originalTitle = metadata.originalTitle;
         if (metadata.movieYear) jellyfinFields.year = metadata.movieYear;
 
-        // Titles (first title or original title)
-        if (metadata.titles) {
-            const titleEntries = Object.entries(metadata.titles);
-            if (titleEntries.length > 0) {
-                jellyfinFields.title = titleEntries[0][1];
-            }
-        }
+        // Title: the display name. `titles/*` is an unordered name set with no
+        // preferred member, so it is never the NFO title (METADATA_KEYS.md §3).
+        const title = metadata.title || metadata.originalTitle;
+        if (title) jellyfinFields.title = title;
 
         // IDs
         if (metadata.imdbid) jellyfinFields.imdbid = metadata.imdbid;

packages/meta-sort-editor/src/types/index.ts

@@ -9,7 +9,7 @@ export interface FileMetadata {
 
   // Filename parsing
   title?: string;
-  titles?: string[];
+  titles?: Record<string, Record<string, true | string>>; // key-set: lang3 → {name: "true"}
   originaltitle?: string;
   showtitle?: string;
   season?: number;

packages/shared/meta-interface/src/lib/MetaData.test.ts

@@ -22,13 +22,13 @@ describe('MetaData', () => {
     });
 
     it('should set and get nested metadata using nested keys', () => {
-        root.at('titles').at('eng').set("Star Wars");
-        root.at('titles').at('jpn').set("Staru Warsu");
-        expect(root.at('titles').at('eng').get()).to.equal("Star Wars");
-        expect(root.at('titles').at('jpn').get()).to.equal("Staru Warsu");
-        expect(root.at('titles').get()).to.deep.equal({eng: "Star Wars", jpn: "Staru Warsu"});
+        root.at('titles').at('eng').at('Star Wars').set(true);
+        root.at('titles').at('jpn').at('Staru Warsu').set(true);
+        expect(root.at('titles').at('eng').at('Star Wars').get()).to.equal(true);
+        expect(root.at('titles').at('jpn').at('Staru Warsu').get()).to.equal(true);
+        expect(root.at('titles').get()).to.deep.equal({eng: {"Star Wars": true}, jpn: {"Staru Warsu": true}});
         expect(root.get()).to.deep.equal({
-            titles: {eng: "Star Wars", jpn: "Staru Warsu"}
+            titles: {eng: {"Star Wars": true}, jpn: {"Staru Warsu": true}}
         });
     });
 

packages/shared/meta-interface/src/lib/metadata-type/VideoMeta.ts

@@ -8,8 +8,9 @@ export interface VideoMeta {
     increment?: string;
     movieYear?: string;
     videoType?: VideoType;
+    title?: string;//display title (localized); the one name to show
     originalTitle?: string;//title in original language
-    titles?: LanguageData<string>;// <ISO 639-3 lang codes, title>
+    titles?: LanguageData<Record<string, true>>;// key-set: <ISO 639-3 lang code, {name: true}> — every clean name incl. AKAs (METADATA_KEYS.md §3)
 }
 
 export const VideoMetaFields = [