<?php
/**
 * Created by PhpStorm.
 * User: Tsurkanov
 * Date: 03.11.2015
 * Time: 14:51
 */

namespace common\components\archive_reader;


class ArchiveCreator {

  protected  $handleExtension = [];

    public  function create( $file, $ext ){
        if ( isHandableExtension( $ext )) {
            $arh_class = ucfirst( $ext ) . 'ArchiveReader';
            if ( class_exists( $arh_class ) ) {

                $arh_reader =  new $arh_class();

                if ($arh_reader instanceof ArchiveReader ) {
                    $arh_reader->open($file);
                    return $arh_reader;
                }

            }

        }
        // не найден подходящий обработчик
        throw new \Exception( "Для расширения {$ext} не найден подходящий распаковщик" );
    }

    protected  function isHandableExtension( $ext ){

        $this->setHandleExtension( );
        return (bool) array_search( $ext, $this->handleExtension);
    }

    protected  function setHandleExtension( ){
        if ( !$this->handleExtension ) {
            foreach (get_declared_classes() as $class) {
                if (is_subclass_of( $class, ArchiveReader::class ))

                    $this->handleExtension[] = $class::getExtension();

            }
        }
    }

    public  function getHandleExtension( ){

       return $this->handleExtension;

    }


}