<?php


namespace app\admin\service;


use app\admin\exception\LogicException;
use think\facade\Config;
use Qcloud\Cos\Client;
use think\facade\Log;

/**
 * 阿里云OSS服务
 *
 * Class OssService
 * @package app\admin\service
 */
class OssService
{
    private $client;

    /**
     * 不可与oss已有的bucket重名，这个不区分账号
     *
     * @var mixed
     */
    private $bucket;

    public function __construct()
    {
        $accessKeyId     = Config::get('uploadFile.access_key_id');
        $accessKeySecret = Config::get('uploadFile.access_key_secret');
        $endpoint        = Config::get('uploadFile.endpoint');
        $bucket          = Config::get('uploadFile.bucket');
        try {
            $cos_client = new Client([
                'region'      => $endpoint,
                'credentials' => [
                    'secretId'  => $accessKeyId,
                    'secretKey' => $accessKeySecret
                ]
            ]);
            if (!$cos_client->doesBucketExist($bucket)) {
                $cos_client->createBucket($bucket);
            }
        } catch (\Exception $e) {
            throw new LogicException($e->getMessage());
        }
        $this->bucket = $bucket;
        $this->client = $cos_client;
        return $this;
    }

    /**
     * 上传单个文件，eg：$_FILES['img']
     *
     * @param string $path
     * @param string $tmpFilePath
     * @param string $mimeType
     * @return string
     * @throws LogicException
     */
    public function uploadSingleFile($path, $tmpFilePath, $mimeType = 'application/octet-stream')
    {
        try {
            $this->client->putObject([
                'Bucket'      => $this->bucket,
                'Key'         => $path,
                'Body'        => fopen($tmpFilePath, 'rb'),
                'ContentType' => $mimeType
            ]);
        } catch (\Exception $e) {
            throw new LogicException($e->getMessage());
        }
        return env('uploadFile.url') . $path;
    }

    /**
     * 上传多文件，eg：$_FILES['imgs']
     *
     * @param array $paths
     * @param array $tmpPaths
     * @return array
     * @throws LogicException
     */
    public function uploadMultiFiles(array $paths, array $tmpPaths)
    {
        $signedUrls = [];
        foreach ($paths as $index => $path) {
            $signedUrls[$index] = $this->uploadSingleFile($path, $tmpPaths[$index]);
        }
        return $signedUrls;
    }

    /**
     * 获取加密的url
     *
     * @param $path
     * @param int $timeout
     * @return string
     */
    public function getSignedUrl($path, $timeout = 3600)
    {
        try {
            $url = $this->client->signUrl($this->bucket, $path, $timeout);
        } catch (\Exception $e) {
            return '';
        }
        return $url;
    }

    /**
     *获取OSS文件
     */
    public function getOSSFile($fileUrl, $localPath = '')
    {
        $fileUrl   = str_replace("\\", "/", $fileUrl);
        $path      = parse_url($fileUrl, PHP_URL_PATH);
        $objectKey = substr($path, 1);

        try {
            $config = ['Bucket' => $this->bucket, 'Key' => $objectKey];
            if (!empty($localPath)) {
                $config['SaveAs'] = $localPath;
            }
            $content = $this->client->getObject($config);
        } catch (\Exception $e) {
            printf(__FUNCTION__ . ": FAILED\n");
            printf($e->getMessage() . "\n");
            return "";
        }
        $content = base64_encode($content);
        return $content;
    }

    /**
     *删除文件
     *
     */
    public function deleteOSSFile($fileUrl)
    {
        $url = substr($fileUrl, strlen("https://pgevasys.oss-cn-shenzhen.aliyuncs.com"));
        $url = str_replace("\\", "/", $url);

        $objectKey = substr($url, 1);

        try {
            $this->client->deleteObject($this->bucket, $objectKey);
        } catch (\Exception $e) {
            printf(__FUNCTION__ . ": FAILED\n");
            printf($e->getMessage() . "\n");
            return false;
        }
        return true;

    }

}