course-site/app/Http/Controllers/Api/Course/CategoryController.php

<?php

namespace App\Http\Controllers\Api\Course;

use App\Http\Controllers\Controller;
use App\Repositories\Enums\ModelStatusEnum;
use App\Repositories\Enums\ResponseCodeEnum;
use Illuminate\Http\Request;
use Jiannei\Response\Laravel\Support\Facades\Response;
use Prettus\Validator\Contracts\ValidatorInterface;
use App\Contracts\Repositories\Course\CategoryRepository;
use App\Repositories\Validators\Course\CategoryValidator;

/**
 * Class CourseCategoriesController.
 *
 * @package namespace App\Http\Controllers;
 */
class CategoryController extends Controller
{
    /**
     * @var CategoryRepository
     */
    protected $repository;

    /**
     * @var CategoryValidator
     */
    protected $validator;

    /**
     * CourseCategoriesController constructor.
     *
     * @param CategoryRepository $repository
     * @param CategoryValidator $validator
     */
    public function __construct(CategoryRepository $repository, CategoryValidator $validator)
    {
        $this->repository = $repository;
        $this->validator = $validator;
    }

    public function tree()
    {

        $departments = $this->repository->orderByDesc('sort')->get()->append('parent_name')->toArray();

        return Response::success(toTree($departments));
    }

    public function index(Request $request)
    {
        if ($id = $request->get('id', false)) {
            $category = $this->repository->skipPresenter()->where('status', ModelStatusEnum::OK)->where('parent_id', $id)->get(['id', 'name']);
        } else {
            $category = $this->repository->skipPresenter()->where('status', ModelStatusEnum::OK)->where('parent_id', 0)->get(['id', 'name']);
        }
        return Response::success($category);
    }
}