Add query parameters to genres listing

app/Http/Controllers/V4DB/GenreController.php

@@ -5,6 +5,7 @@ namespace App\Http\Controllers\V4DB;
 use App\Anime;
 use App\GenreAnime;
 use App\GenreManga;
+use App\Http\QueryBuilder\SearchQueryBuilderGenre;
 use App\Http\Resources\V4\AnimeCollection;
 use App\Http\Resources\V4\GenreCollection;
 use App\Http\Resources\V4\MangaCollection;
@@ -32,7 +33,10 @@ class GenreController extends Controller
      */
     public function anime(Request $request)
     {
-        $results = GenreAnime::query();
+        $results = SearchQueryBuilderGenre::query(
+            $request,
+            GenreAnime::query()
+        );
 
         return new GenreCollection(
             $results->get()

app/Http/QueryBuilder/SearchQueryBuilderGenre.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace App\Http\QueryBuilder;
+
+use App\Http\HttpHelper;
+use Illuminate\Http\Request;
+use Jenssegers\Mongodb\Eloquent\Builder;
+
+
+class SearchQueryBuilderGenre implements SearchQueryBuilderInterface
+{
+
+    const MAX_RESULTS_PER_PAGE = 25;
+
+    const ORDER_BY = [
+        'mal_id', 'name', 'count'
+    ];
+
+    public static function query(Request $request, Builder $results) : Builder
+    {
+        $query = $request->get('q');
+        $orderBy = $request->get('order_by');
+        $sort = self::mapSort($request->get('sort'));
+        $letter = $request->get('letter');
+
+
+        if (!empty($query) && is_null($letter)) {
+
+            $results = $results
+                ->where('name', 'like', "%{$query}%");
+        }
+
+        if (!is_null($letter)) {
+            $results = $results
+                ->where('name', 'like', "{$letter}%");
+        }
+
+        if (!is_null($orderBy)) {
+            $results = $results
+                ->orderBy($orderBy, $sort ?? 'asc');
+        }
+
+        if (empty($query)) {
+            $results = $results
+                ->orderBy('mal_id');
+        }
+
+        return $results;
+    }
+
+    /**
+     * @param string|null $sort
+     * @return string|null
+     */
+    public static function mapSort(?string $sort = null) : ?string
+    {
+        if (is_null($sort)) {
+            return null;
+        }
+
+        $sort = strtolower($sort);
+
+        return $sort === 'desc' ? 'desc' : 'asc';
+    }
+}

app/Http/QueryBuilder/SearchQueryBuilderMagazine.php

@@ -11,7 +11,7 @@ class SearchQueryBuilderMagazine implements SearchQueryBuilderInterface
 {
 
     const ORDER_BY = [
-        'mal_id', 'title', 'count'
+        'mal_id', 'name', 'count'
     ];
 
     public static function query(Request $request, Builder $results) : Builder

app/Http/QueryBuilder/SearchQueryBuilderProducer.php

@@ -13,7 +13,7 @@ class SearchQueryBuilderProducer implements SearchQueryBuilderInterface
     const MAX_RESULTS_PER_PAGE = 25;
 
     const ORDER_BY = [
-        'mal_id', 'title', 'count'
+        'mal_id', 'name', 'count'
     ];
 
     public static function query(Request $request, Builder $results) : Builder

routes/web.v4.php

@@ -341,6 +341,7 @@ $router->group(
         'prefix' => 'genres'
     ],
     function () use ($router) {
+
         $router->get('/anime', [
             'uses' => 'GenreController@anime'
         ]);