<?php
/**
 * Created by PhpStorm.
 * User: danilo
 * Date: 02/03/16
 * Time: 14:27
 */

namespace Modules\Core\Commands;

use hanneskod\classtools\Iterator\ClassIterator;
use Illuminate\Database\Eloquent\Model;
use Symfony\Component\Finder\Finder;

class FindCacheableClasses
{
    /**
     * @var null|string
     */
    private $directory;

    public function __construct($directory)
    {
        $this->directory = realpath($directory);
    }

    public function getAllCacheableClasses()
    {
        $finder = new Finder;
        $iterator = new ClassIterator($finder->in($this->directory));
        $iterator->enableAutoloading();
        $classes = [];
        foreach ($iterator->type(Model::class) as $className => $class) {
            if ($class->isInstantiable() && $this->usesCaching($class)) {
                $classes[] = $className;
            }
        }
        return $classes;
    }

    /**
     * Decide if the class uses any of the caching behaviours.
     *
     * @param \ReflectionClass $class
     *
     * @return bool
     */
    private function usesCaching(\ReflectionClass $class)
    {
        return $class->hasMethod('bootCountable') || $class->hasMethod('bootSummable');
    }
}