<?php
/**
 * Created by PhpStorm.
 * User: Cibermag
 * Date: 31.08.2015
 * Time: 9:58
 */
namespace backend\components\base;

use Yii;
use yii\web\UploadedFile;
use backend\models\ImageSizerForm;
use yii\web\Controller;
use Imagine\Gd\Imagine;
use Imagine\Image\Box;
use yii\imagine\Image;

class BaseController extends Controller {


    private function resizeImg($w, $h, $imageAlias,$imageAliasSave){
        $img = Image::getImagine()->open(Yii::getAlias($imageAlias));

        $size = $img->getSize();

        $width = $size->getWidth();
        $height = $size->getHeight();

        if($width > $height) {
            $y = 0;
            $x = ($width - $height) / 2;
            $smallestSide = $height;
        } else {
            $x = 0;
            $y = ($height - $width) / 2;
            $smallestSide = $width;
        }

        Image::crop($imageAlias, $smallestSide, $smallestSide,[$x,$y])
            ->save(Yii::getAlias($imageAliasSave), ['quality' =>
                100]);


        $imagine = new Imagine();
        $imagine->open($imageAliasSave)
            ->resize(new Box($w, $h))
            ->save($imageAliasSave, array('flatten' => false));


    }

    private function deleteImages($old_img){

        if(!empty($old_img) && file_exists($_SERVER['DOCUMENT_ROOT'].$old_img)){

            $rootDir = explode("/", $old_img);

            $row = $_SERVER['DOCUMENT_ROOT'].'/'.$rootDir[1].'/'.$rootDir[2].'/';

            $allFiles = scandir($row);

            $allFiles = array_slice($allFiles, 2);

            foreach($allFiles as $oldFile){

                unlink($row.$oldFile);

            }

        }
    }

    public function actionDeleteImage(){
        $old_img = Yii::$app->request->post('old_img');

        if ($old_img) {
            $this->deleteImages($old_img);
        }
    }


    public function actionDownloadPhoto()
    {

        $model = new ImageSizerForm();

        if ($model->load(Yii::$app->request->post())) {

            $this->deleteImages($model->old_img);

            $model->file = UploadedFile::getInstance($model, 'file');

            $md5_file = md5_file($model->file->tempName);

            $imgDir = Yii::getAlias('@storage/'.$md5_file.'/');

            $imageOrigAlias = Yii::getAlias($imgDir.'original'.'.'.$model->file->extension);

            if(!is_dir($imgDir)) {
                mkdir($imgDir, 0755, true);
            }

            $model->file->saveAs($imageOrigAlias);

            if($model->width && $model->height){

                $imageAlias = Yii::getAlias($imgDir.$model->width.'x'.$model->height.'.'.$model->file->extension);

                $imageLink = '/storage/'.$md5_file.'/'.$model->width.'x'.$model->height.'.'.$model->file->extension;

                $this->resizeImg($model->width, $model->height, $imageOrigAlias,$imageAlias);

            } else {

                $imageLink = '/storage/'.$md5_file.'/'.'original'.'.'.$model->file->extension;

            }


            if($model->multi){
                $view = $this->renderPartial('@app/components/views/_gallery_item', [
                    'item' => ['image'=>$imageLink],
                ]);

                return json_encode(['link'=>$imageLink, 'view' =>$view]);


            } else {
                return json_encode(['link'=>$imageLink]);
            }


        }
    }

    /**
     * @param $mode - int: 0 - fetch from cache, - 1 - put in cache,  <2 - delete from cache
     * @param $data - array
     * @param $configuration - array
     * @throws \ErrorException
     */
    protected function parserCacheHandler( $mode, &$data = [], &$configuration = [] ){
        switch ( $mode ) {
            case 0:
                if (Yii::$app->getCache()->get('parser_data') && Yii::$app->getCache()->get('parser_configuration')) {
                    $data = json_decode(Yii::$app->getCache()->get('parser_data'), true);
                    $configuration = unserialize(Yii::$app->getCache()->get('parser_configuration'));
                } else {
                    throw new \ErrorException('Ошибка кеша');
                }
                break;

            case 1:
                Yii::$app->getCache()->set('parser_data', json_encode($data), 1800);
                // сохраняем в кеш модель - в ней настройки для дальнейшей обработки данных
                Yii::$app->getCache()->set('parser_configuration', serialize($configuration), 1800);
                break;

            default:
                if( Yii::$app->getCache()->exists('parser_data') )
                    Yii::$app->getCache()->delete('parser_data');

                if( Yii::$app->getCache()->exists('parser_configuration') )
                    Yii::$app->getCache()->delete('parser_configuration');
        }

    }
}