<?php

namespace app\oss\service;
use app\common\service\Oss\Bucket;
use app\common\service\Oss\Object;
use Exception;
use OSS\OssClient;
use think\Config;

class OssServiceV2 {

    static private $bucket;
    static private $object;

    public function __construct($bucketName = '') {
        self::$bucket = new Bucket($bucketName);
        self::$object = new Object($bucketName);
    }

    /**
     * 文件上传到阿里云
     * @param $filePath 保存在阿里云的路径和名称
     * @param $content  文件流
     * @param bool   $isEncode 是否需要加密
     * @return bool|string
     */
    public function fileUpload($filePath, $content, $isEncode = true){
        try {
            $ossRes = self::$object->putObject($filePath, $content);

            if ($ossRes) {
                return $isEncode === true ? rawurlencode($filePath) : $filePath;
            }

            return false;
        } catch (Exception $ex) {
            throw new \RuntimeException('OSS ERROR MSG:' . $ex->getMessage());
        }
    }

    /**
     * 删除阿里云上的文件
     * @param $filePath 保存在阿里云的路径和名称
     * @return bool
     */
    public function fileDelete($filePath) {
        return self::$object->deleteObject($filePath);
    }

    /**
     * acl
     * @param $object 相对地址
     * @param $acl ['default', 'private', 'public-read', 'public-read-write']
     * @return bool
     */
    public function putObjectAcl($object, $acl='private') {
        return self::$object->putObjectAcl($object, $acl);
    }

    /**
     * 下载接口
     * @param $filePath
     * @return null
     */
    public function downFile($filePath) {
        return self::$object->getObject($filePath);
    }

    /**
     * 图片在阿里云上存在
     * @param $imagePath
     * @return bool
     */
    public function fileExist($imagePath) {
        return self::$object->doesObjectExist($imagePath);
    }

    /**
     * 图片信息
     * @param $imagePath
     * @param $ossDomain
     * @return mixed
     */
    public function imageInfo($imagePath, $ossDomain) {
        $imageInfo = file_get_contents($ossDomain . $imagePath . '@info');
        return json_decode($imageInfo, true);
    }

    public function bucketList() {
        return self::$bucket->listBuckets();
    }

    /**
     * 获取代签名的URI
     * @param array $params = [
     *                      'object' => 'xxx',
     *                      'bucket' => 'xxx',
     *                      'isIntranet' => true,
     *                      'crop'   => [
     *                           'x' => 1,
     *                           'y' => 2,
     *                           'w' => 3
     *                          ],
     *                     'snapshot'   => [
     *                           't' => 1,
     *                          'f' => 2,
     *                           'w' => 3
     *                          ]
     *                      ]
     * @return string
     */
    public function getSignUrl(array $params) {
        $fileExist = $this->fileExist($params['object']);
        if (!$fileExist) {
            throw new \RuntimeException('未找到该文件: ' . $params['object']);
        }

        $isIntranet = isset($params['isIntranet']) ?$params['isIntranet']:true;
        if ((bool)$isIntranet !== true) {
            Config::set('ALIYUN_OSS_ENDPOINT_DOMAIN', Config::get('ALIYUN_OSS_ENDPOINT'));
        }

        $object = new Object($params['bucket']);
        $ossClientObj = $object->getOssClient();

        $ossClientObj->setUseSSL(true);
        $timeout = 3600;
        $option = '';
        // 图片处理
        if (!empty($params['resize'])) {
            $option = 'image/resize,m_lfit,h_' . $params['resize']['h'] . ',w_' . $params['resize']['w']; //图片缩放
        } else if (!empty($params['crop'])) {// 图片切割
            $option = 'image/crop';
            $keys = ['x', 'y', 'w', 'h', 'g'];
            foreach ($keys as $key) {
                if(!empty($params['crop'][$key])){
                    $option .= ',' . $key . '_' . $params['crop'][$key];
                }
            }
        } else if (!empty($params['snapshot'])) {// 视频截帧
            $option = 'video/snapshot';
            //t-时间 f-格式 m-模式
            $keys = ['t', 'f', 'w', 'h', 'm'];
            foreach ($keys as $key) {
                if(!empty($params['snapshot'][$key])){
                    $option .= ',' . $key . '_' . $params['snapshot'][$key];
                }
            }
        }

        $url = $ossClientObj->signUrl($params['bucket'], $params['object'], $timeout, 'GET', !empty($option) ? [OssClient::OSS_PROCESS => $option] : null);
        if(empty($params['url'])){
            return $url;
        }

        return preg_replace('#^https?:\/\/[^\/]+#', rtrim($params['url'], '\/'), $url);
    }

    /**
     * 批量获取签名
     * @param array $data = [['bucket' => xxx, 'object' => xxx],['bucket' => xxx, 'object => xxx]]
     * @return array
     */
    public function getMultiSignUrl(array $data){
        foreach ($data as $key => $dataItem) {
            $data[$key]['newUrl'] = $this->getSignUrl($dataItem);
        }
        return $data;
    }

    /**
     * 获取图片信息
     * @param array
     * @return array 图片信息
     */
    public function getPublicImageInfo($imageUrl){
        $imageInfoUrl = $imageUrl . '?x-oss-process=image/info';
        //获取oss返回的json对象
        return json_decode(file_get_contents($imageInfoUrl), true);
    }

    /**
     * 拼接成正方形
     * @param array $param
     * @return string
     */
    public function getProcessImageUrl(array $param) {
        // 获取图片信息
        $imageUrl = 'http://' . $param['bucket'] . '.' . $param['endpoint'] . $param['path'];
        // 取图片最短的边作为正方形的边长
        if (!empty($param['process']['crop']['shape']) && 'square' === $param['process']['crop']['shape']) {
            $imageInfo                     = $this->getPublicImageInfo($imageUrl);
            $height                        = $imageInfo['ImageHeight']['value'];
            $width                         = $imageInfo['ImageWidth']['value'];
            $param['process']['crop']['h'] = $height > $width ? $width : $height;   //高
            $param['process']['crop']['w'] = $height > $width ? $width : $height;   //宽
        }
        $processFunc = current(array_keys($param['process'])); // 获取方法(crop裁剪 resize缩放)

        switch ($processFunc) {
            case 'crop':
                $imageUrl .= '?x-oss-process=image/' . $processFunc;
                $keys = ['x', 'y', 'w', 'h', 'g'];
                foreach ($keys as $key) {
                    if(!empty($param['process'][$processFunc][$key])){
                        $imageUrl .= ',' . $key . '_' . $param['process'][$processFunc][$key];
                    }
                }
                break;
            case 'resize':
                // 暂时不写谁用谁加
                break;
        }
        return $imageUrl;
    }

    /**
     * 删除oss图片
     * @param $url $url为完整路径 http://www......
     */
    public function checkAndDelOssRemotePic($url = ''){
        if (empty($url)) {
            return;
        }
        //获取该文件的路径 去除掉 http网址
        $path = substr(parse_url($url, PHP_URL_PATH), 1);
        //判断该文件是否存在
        if ($this->fileExist($path)) {
            $this->fileDelete($path);
        }
    }

    /**
     * @param $upType
     * @param array  $params
     * @param $fileName
     * @param $ext
     * @return array
     */
    public function getFileNameAndRealContent($upType, array $params, $fileName, $ext){
        if ($upType === 'base64') {//base64上传方式
            $content = isset($params['content']) ?$params['content']: '';
            $rule    = "/^(data:\s*image\/(\w+);base64,)/";
            if (preg_match($rule, $content, $match)) {
                $content = preg_replace($rule, '', $content);
                if (!empty($fileName) && empty($ext)) {
                    $dataImages = [
                        'gif'    => 'gif',
                        'png'    => 'png',
                        'jpeg'   => 'jpg',
                        'jpg'    => 'jpg',
                        'x-icon' => 'ico',
                    ];
                    $ext        = $dataImages[$match[2]];
                    $fileName   = rtrim($fileName, '.') . '.' . $ext;
                }
            }
            $realContent = base64_decode($content);
        } else {//普通文件上传方式
            //$content = $this->IJ('content', false, '内容不能为空');
            $content = isset($_FILES['content']) ?$_FILES['content']:[];
            if (empty($content)) {
                throw new \RuntimeException('请选择要上传的文件');
            }
            if (!empty($fileName) && empty($ext)) {
                $imgType    = (string)$content['type'];
                $imageTypes = [
                    'image/gif'  => 'gif',
                    'image/jng'  => 'png',
                    'image/jpeg' => 'jpg',
                ];
                if (!empty($imgType) && in_array($imgType, $imageTypes, true)) {
                    $ext = $imageTypes[$imgType];
                } else if (!empty($content['name'])) {
                    $ext = pathinfo($content['name'], PATHINFO_EXTENSION);
                }
                $fileName = rtrim($fileName, '.') . (!empty($ext) ? '.' . $ext : '');
            }
            $realContent = $content ? file_get_contents($content['tmp_name']) : null;
        }
        return [$fileName, $realContent];
    }

}