<?php

namespace app\components\file;

use yii;
use yii\helpers\ArrayHelper;
use yii\web\UploadedFile as ParentUploadedFile;
use app\models\Image;
use app\components\ThumbGenerator;

class UploadedFile extends ParentUploadedFile
{
    protected $_errors = [];

    /* @var Image */
    protected $_fileModel;
    protected $_nameFs;
    protected $_imageId;

    public function saveImageAs(self $file, $options = array(), $deleteTempFile = true)
    {
        if ($file->name) {
            if (isset($options['oldValue']) && $options['oldValue']) {
                $this->_removeOldImage($options['oldValue']);
            }
            $data = array(
                'nodeId'           => $options['nodeId'],
                'imageId'          => null,
                'name'             => $file->name,
                'filenameOriginal' => $file->name,
                'filenameFs'       => $this->_prepareFileName($file->name),
                'display'          => 'y',
                'sorter'           => null
            );
            $filename = Yii::getAlias(ThumbGenerator::FS_FILE_ALIAS) . '/' . $data['filenameFs'];
            $this->_fileModel->setAttributes($data, false);
            $this->_fileModel->file = $file;
            if ($this->_fileModel->validate()) {
                $this->_fileModel->save(false);
                $this->_imageId = $this->_fileModel->getAttribute('imageId');
                parent::saveAs($filename, $deleteTempFile);
                $this->_resize($filename, $options);

                return $this->_fileModel->getAttribute('imageId');
            } else {
                foreach ($this->_fileModel->getErrors() as $msg) {
                    $this->addError($msg);
                }
            }
        } else {
            $this->addError('Wrong filename');
        }
        return null;
    }

    protected function _removeOldImage($file)
    {
        $this->_fileModel = new Image();
        $this->_fileModel->deleteByFsName($file);
        return true;
    }

    protected function _resize($filename, $options)
    {
        if (isset($options['image']['width']) && isset($options['image']['height'])) {
            $thumb = new ThumbGenerator();
            if (isset($options['image']['crop']) && $options['image']['crop'] == 'inner') {
                $thumb->adaptiveResize($filename, $filename, $options['image']);
            } else if (isset($options['image']['crop']) && $options['image']['crop'] == 'cropCenter') {
                $thumb->cropFromCenter($filename, $filename, $options['image']);
            } else {
                $thumb->resize($filename, $filename, $options['image']);
            }
        }

        return $this;
    }

    protected function _prepareFileName($filename)
    {
        if ($this->_nameFs === null) {
            $this->_fileModel = new Image();
            /*$query = $this->_fileModel->createQuery()->where('name LIKE ' . yii::$app->db->quoteValue($filename));
            $names = ArrayHelper::getColumn($query->createCommand()->queryAll(), 'filenameFs');*/
            $names = ArrayHelper::getColumn($this->_fileModel->find()->where(['LIKE','name', $filename])->asArray()->all(), 'filenameFs');
            if (empty($names)) {
                $index = 1;
            } else {
                sort($names, SORT_NATURAL);
                $nameForIndex = $names[count($names) - 1];
                $startPosition = strrpos($nameForIndex, '(') + 1;
                $nameForIndex = $names[count($names) - 1];
                $endPosition = strrpos($nameForIndex, ')') + 1;
                $index = intval(substr($nameForIndex, $startPosition, $endPosition - $startPosition - 1)) + 1;
            }
            $fileParts = pathinfo($filename);
            $this->_nameFs = $fileParts['filename'] . '(' . $index . ').' . $fileParts['extension'];
        }
        return $this->_nameFs;
    }

    /**
     * @return string
     */
    public function getNameFs()
    {
        return $this->_nameFs;
    }

    public function getErrors()
    {
        return $this->_errors === null ? [] : $this->_errors;
    }

    public function addError($error = '')
    {
        $this->_errors[] = $error;
    }

    public function clearErrors()
    {
        $this->_errors = [];
    }

}