fix: fall back to English genre names (#1352)

* fix: fall back to English genre names

* fix: use startsWith() instead of equality check

server/api/themoviedb/index.ts

@@ -715,7 +715,34 @@ class TheMovieDb extends ExternalAPI {
         86400 // 24 hours
       );
 
-      const movieGenres = sortBy(data.genres, 'name');
+      if (
+        !language.startsWith('en') &&
+        data.genres.some((genre) => !genre.name)
+      ) {
+        const englishData = await this.get<TmdbGenresResult>(
+          '/genre/movie/list',
+          {
+            params: {
+              language: 'en',
+            },
+          },
+          86400 // 24 hours
+        );
+
+        data.genres
+          .filter((genre) => !genre.name)
+          .forEach((genre) => {
+            genre.name =
+              englishData.genres.find(
+                (englishGenre) => englishGenre.id === genre.id
+              )?.name ?? '';
+          });
+      }
+
+      const movieGenres = sortBy(
+        data.genres.filter((genre) => genre.name),
+        'name'
+      );
 
       return movieGenres;
     } catch (e) {
@@ -739,7 +766,34 @@ class TheMovieDb extends ExternalAPI {
         86400 // 24 hours
       );
 
-      const tvGenres = sortBy(data.genres, 'name');
+      if (
+        !language.startsWith('en') &&
+        data.genres.some((genre) => !genre.name)
+      ) {
+        const englishData = await this.get<TmdbGenresResult>(
+          '/genre/tv/list',
+          {
+            params: {
+              language: 'en',
+            },
+          },
+          86400 // 24 hours
+        );
+
+        data.genres
+          .filter((genre) => !genre.name)
+          .forEach((genre) => {
+            genre.name =
+              englishData.genres.find(
+                (englishGenre) => englishGenre.id === genre.id
+              )?.name ?? '';
+          });
+      }
+
+      const tvGenres = sortBy(
+        data.genres.filter((genre) => genre.name),
+        'name'
+      );
 
       return tvGenres;
     } catch (e) {