<?php
// +----------------------------------------------------------------------
// | 萤火商城系统 [ 致力于通过产品和服务，帮助商家高效化开拓市场 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2017~2021 https://www.yiovo.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed 这不是一个自由软件，不允许对程序代码以任何形式任何目的的再发行
// +----------------------------------------------------------------------
// | Author: 萤火科技 <admin@yiovo.com>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace app\common\library\storage\engine;

use app\common\library\storage\FileValidate;
use OSS\OssClient;
use OSS\Core\OssException;
use think\facade\Env;

/**
 * 阿里云存储引擎 (OSS)
 * Class Aliyun
 * @package app\common\library\storage\engine
 */
class Aliyun extends Basics
{
    /**
     * 执行上传
     * @return bool|mixed
     */
    public function upload()
    {
        if (!$this->validate()) {
            return false;
        }

        try {
            $ossClient = new OssClient(
                $this->config['access_key_id'],
                $this->config['access_key_secret'],
                $this->config['domain'],
                true
            );
            $result = $ossClient->uploadFile(
                $this->config['bucket'],
                $this->getSaveFileInfo()['file_path'],
                $this->getRealPath()
            );
        } catch (OssException $e) {
            $this->error = $e->getMessage();
            return false;
        }
        return true;
    }

    /**
     * 删除文件
     * @param string $fileName
     * @return bool|mixed
     */
    public function delete(string $fileName)
    {
        try {
            $ossClient = new OssClient(
                $this->config['access_key_id'],
                $this->config['access_key_secret'],
                $this->config['domain'],
                true
            );
            $ossClient->deleteObject($this->config['bucket'], $fileName);
        } catch (OssException $e) {
            $this->error = $e->getMessage();
            return false;
        }
        return true;
    }

    /**
     * 下载文件
     * @param $object
     * @return false|string
     */
    public function download($object){
        // 下载Object到本地文件examplefile.txt，并保存到指定的本地路径中（D:\\localpath）。如果指定的本地文件存在会覆盖，不存在则新建。
        // 如果未指定本地路径，则下载后的文件默认保存到示例程序所属项目对应本地路径中。
        $exts = explode('.',$object);
        $localfile =  runtime_root_path().mt_rand(10000000,99999999).'.'.$exts[1];
        $options = array(
            OssClient::OSS_FILE_DOWNLOAD => $localfile
        );
        // 使用try catch捕获异常。如果捕获到异常，则说明下载失败；如果没有捕获到异常，则说明下载成功。
        try{
            $ossClient = new OssClient(
                $this->config['access_key_id'],
                $this->config['access_key_secret'],
                Env::get('CHEF.SSO_END_POINT')
            );
            $ossClient->getObject($this->config['bucket'], $object, $options);
        } catch(OssException $e) {
            //printf(__FUNCTION__ . ": FAILED\n");
            //printf($e->getMessage() . "\n");
            log_record($e->getMessage());
            return false;
        }
        return  $localfile;
    }

    /**
     * 验证上传的文件
     * @return bool
     */
    private function validate()
    {
        $FileValidate = new FileValidate;
        if (!$FileValidate->check([$this->validateRuleScene => $this->file])) {
            $this->error = $FileValidate->getError();
            return false;
        }
        return true;
    }


}