Remove a reference to genres from an older version of the Kitsu API

src/API/Kitsu/Model.php

@@ -558,7 +558,7 @@ final class Model {
 				'media_type' => 'Anime',
 				'status' => $status,
 			],
-			'include' => 'media,media.genres,media.mappings,anime.streamingLinks',
+			'include' => 'media,media.categories,media.mappings,anime.streamingLinks',
 			'sort' => '-updated_at'
 		];
 
@@ -618,7 +618,7 @@ final class Model {
 					'media_type' => 'Manga',
 					'status' => $status,
 				],
-				'include' => 'media,media.genres,media.mappings',
+				'include' => 'media,media.categories,media.mappings',
 				'page' => [
 					'offset' => $offset,
 					'limit' => $limit

src/API/Kitsu/Transformer/AnimeListTransformer.php

@@ -42,7 +42,13 @@ final class AnimeListTransformer extends AbstractTransformer {
 		$animeId = $item['relationships']['media']['data']['id'];
 		$anime = $included['anime'][$animeId];
 
-		$genres = array_column($anime['relationships']['genres'], 'name') ?? [];
+		$genres = [];
+
+		foreach($anime['relationships']['categories'] as $genre)
+		{
+			$genres[] = $genre['title'];
+		}
+
 		sort($genres);
 
 		$rating = (int) $item['attributes']['ratingTwenty'] !== 0

src/API/Kitsu/Transformer/MangaListTransformer.php

@@ -43,7 +43,13 @@ final class MangaListTransformer extends AbstractTransformer {
 		$mangaId = $item['relationships']['media']['data']['id'];
 		$manga = $included['manga'][$mangaId];
 
-		$genres = array_column($manga['relationships']['genres'], 'name') ?? [];
+		$genres = [];
+
+		foreach ($manga['relationships']['categories'] as $genre)
+		{
+			$genres[] = $genre['title'];
+		}
+
 		sort($genres);
 
 		$rating = (int) $item['attributes']['ratingTwenty'] !== 0

src/API/Kitsu/Transformer/MangaTransformer.php

@@ -35,12 +35,9 @@ final class MangaTransformer extends AbstractTransformer {
 	{
 		$genres = [];
 
-		foreach($item['included'] as $included)
+		foreach($included['categories'] as $cat)
 		{
-			if ($included['type'] === 'categories')
+			$genres[] = $cat['title'];
-			{
-				$genres[] = $included['attributes']['title'];
-			}
 		}
 
 		sort($genres);