<?php


namespace App\Service;

use App\Constants\ErrorCode;
use League\Flysystem\FilesystemNotFoundException;

class AttachmentService implements AttachmentServiceInterface
{

    /**
     * @inheritDoc
     */
    public function formUpload($file, $path, $filesystem, $attachmenttype = 'image')
    {

        $fileRealPath = $file->getRealPath();
        $fileHash = md5_file($fileRealPath);

        $path = $this->getBasePath($path, $attachmenttype);
        $fileName = $path . '/' . $fileHash . '.' . $file->getExtension();

        $stream = fopen($fileRealPath, 'r+');
        $filesystem->writeStream($fileName, $stream);
        fclose($stream);

        return $fileName;
    }

    /**
     * @inheritDoc
     */
    public function base64Upload($contents, $path, $filesystem)
    {

        preg_match('/^(data:\s*image\/(\w+);base64,)/', $contents, $result);
        if (empty($result)) {
            throw new FilesystemNotFoundException(ErrorCode::getMessage(ErrorCode::UPLOAD_INVALID),ErrorCode::UPLOAD_INVALID);
        }

        $contents = base64_decode(str_replace($result[1], '', $contents));

        $fileHash = md5($contents);
        $path = $this->getBasePath($path);
        $fileName = $path . '/' . $fileHash . '.' . $result[2];

        $filesystem->write($fileName, $contents);

        return $fileName;
    }

    protected function getBasePath($path, $attachmenttype = 'image')
    {
        switch ($attachmenttype) {
            case 'image':
                $baseDir = env('IMAGE_BASE', '/attachment/images');
                break;

            case 'file':
                $baseDir = env('FILES_BASE', '/attachment/files');
                break;

            default:
                $baseDir = env('FILES_BASE', '/attachment');
                break;
        }

        $path = $path ? '/'.$path : '';
        $path .= '/'.date('Y').'/'.date('m').'/'.date('d');
        return $baseDir.$path;
    }

    public function switchImgToAliOss($path, $bucket = 'thumbnail_q50')
    {
        if (strpos($path, 'http') === false || strpos($path, 'https') === false) {
            $path = 'https://img.lanzulive.com/' . $path;
        } else {
            $temp = explode('//', $path);
            $temp = explode('/', $temp[1]);
            unset($temp[0]);
            $path = 'https://img.lanzulive.com/' . implode('/', $temp);
        }
        return $path . '!' . $bucket;
    }
}