PascalKleindienst/WP-Helpers

<?php
namespace GeistPress\Helpers\Foundation;

use GeistPress\Helpers\Facades\Loader as FacadeLoader;

class Loader
{
    /**
     * @var \GeistPress\Helpers\Facades\Loader
     */
    protected $facadeLoader;

    /**
     * Init Facade Loader
     */
    public function __construct()
    {
        $this->facadeLoader = new FacadeLoader();
    }

    /**
     * Register all registerable classes of a directory
     *
     * @param string $path A path to a class or a namespaced class
     * @param string|null $namespace Root namespace of $path
     * @throws \InvalidArgumentException if $path is not a valid directory
     * @return mixed
     */
    public function register($path, $namespace = null)
    {
        // Init class
        if (class_exists($path)) {
            return $this->init($path);
        }
        
        // Not a class or not a valid directory
        if (!file_exists($path) || !is_dir($path)) {
            throw new \InvalidArgumentException("$path is not a valid directory");
        }
        
        // load classes from $path
        // spl_autoload_register(function ($class) use ($path, $namespace) {
        //     include_once $path . DIRECTORY_SEPARATOR . str_replace($namespace . '\\', '', $class) . '.php';
        // });

        // init all classes and call their register method
        foreach (glob($path . '/*.php') as $file) {
            $class = basename($file, '.php');
            $class = is_null($namespace) ? $class : "$namespace\\$class";
            
            include_once $path . DIRECTORY_SEPARATOR . str_replace($namespace . '\\', '', $class) . '.php';

            if (class_exists($class)) {
                $this->init($class);
            }
        }
    }

    /**
     * Init class and call register method if it is Registable
     *
     * @param string $class
     * @return mixed
     */
    protected function init($class)
    {
        $obj = new $class();
                    
        if ($obj instanceof Registerable) {
            $obj->register();
        }

        return $obj;
    }
}