<?php

namespace plugin\qiniu_kodo\service;

use laytp\traits\Error;
use Qiniu\Auth;
use Qiniu\Storage\UploadManager;
use think\facade\Config;

/**
 * Class Kodo
 * @package plugin\qiniu\service
 */
class Kodo
{
    use Error;

    protected static $instance;

    /**
     * 单例
     * @return static
     */
    public static function instance()
    {
        if (is_null(self::$instance)) {
            self::$instance = new static();
        }

        return self::$instance;
    }

    /**
     * 上传文件
     * @param $localFileName
     * @param $saveFileName
     * @param $config
     * @return bool
     * @throws \Exception
     */
    public function upload($localFileName, $saveFileName, $config)
    {
        try {
            $accessKey = $config['accessKey'];
            if (!$accessKey) {
                $this->setError('上传失败，七牛云的accessKey为空，请先配置');
                return false;
            }
            $secretKey = $config['secretKey'];
            if (!$secretKey) {
                $this->setError('上传失败，七牛云的secretKey为空，请先配置');
                return false;
            }
            $bucket = $config['bucket'];
            if (!$bucket) {
                $this->setError('上传失败，七牛云的bucket为空，请先配置');
                return false;
            }
            $domain = $config['domain'];
            if (!$domain) {
                $this->setError('上传失败，七牛云的domain为空，请先配置');
                return false;
            }
            $client = new Auth($accessKey, $secretKey);
            $token = $client->uploadToken($bucket);
            $uploadMgr = new UploadManager();
            list($ret, $err) = $uploadMgr->putFile($token, $saveFileName, $localFileName);
            if ($err !== null) {
                $this->setError('上传失败，' . $err);
                return false;
            } else {
                return $domain . '/' . $saveFileName;
            }
        } catch (\Exception $e) {
            $this->setError('上传失败，' . $e->getMessage());
            return false;
        }
    }

    /**
     * 客户端获取上传凭证token，然后由客户端JS-SDK将文件上传到七牛云KODO
     * @param $config
     * @return bool
     */
    public function token($config){
        try {
            $accessKey = $config['accessKey'];
            if (!$accessKey) {
                $this->setError('上传失败，七牛云的accessKey为空，请先配置');
                return false;
            }
            $secretKey = $config['secretKey'];
            if (!$secretKey) {
                $this->setError('上传失败，七牛云的secretKey为空，请先配置');
                return false;
            }
            $bucket = $config['bucket'];
            if (!$bucket) {
                $this->setError('上传失败，七牛云的bucket为空，请先配置');
                return false;
            }
            $domain = $config['domain'];
            if (!$domain) {
                $this->setError('上传失败，七牛云的domain为空，请先配置');
                return false;
            }
            $client = new Auth($accessKey, $secretKey);
            $token = $client->uploadToken($bucket);
            if ($token) {
                return $token;
            } else {
                $this->setError('七牛云上传凭证Token获取失败');
                return false;
            }
        } catch (\Exception $e) {
            $this->setError($e->getMessage());
            return false;
        }
    }
}