<?php

namespace tencent\cos\object;

use think\facade\Request;
use tencent\cos\Base;

class File extends Base
{

    /**
     * 文件上传
     * @param string $local_file_url 本地存储路径，填写的时候以'./'开头
     * @param string $cos_file_dirname 存放文件的文件夹层级，例如：uid2
     * @param string $cos_file_name 文件名，例如：2.txt
     * @param boolean $is_delete_file 上传成功之后是否删除源文件(false--不删除 true--删除)，本地调试时无法删除
     * @date 2022-11-28
     */
    public function uploadFile($local_file_url, $cos_file_dirname, $cos_file_name = '', $is_delete_file = true)
    {
        // 上传到COS的文件没有指定文件名，自动生成
        if (empty($cos_file_name)) {
            // 文件名为当前微秒加密
            $cos_file_name = md5(microtime(true));

            // 获取后缀名
            $suffix = get_suffix($local_file_url);

            // 文件名
            $cos_file_name .= '.' . $suffix;
        }

        // 上传到cos的文件指定文件名，只需拼接项目文件夹
        $object = $this->config['first_directory'] . '/' . $cos_file_dirname . '/' . $cos_file_name;

        // 存储桶名称，由BucketName-Appid 组成
        $bucket = $this->config['bucket_name'];

        try {
            $cosClient = new \Qcloud\Cos\Client([
                'region' => $this->config['region'],
                // 协议头部，默认为http
                'schema' => Request::scheme(),
                'credentials' => [
                    'secretId' => $this->config['secret_id'],
                    'secretKey' => $this->config['secret_key']
                ]
            ]);

            $body = fopen($local_file_url, 'rb');

            // 上传对象
            $result = $cosClient->upload($bucket, $object, $body);

            $result = $this->resultToArray($result);

            // 记录日志
            $uid = defined('UID') ? UID : '';
            platformLog([
                'bucket' => $bucket,
                'key' => $object,
                'local_file_url' => $local_file_url
            ], $result, 'tencent_cos_upload_file_uid_' . $uid);

            if ($is_delete_file) {
                // 删除原文件
                unlink($local_file_url);
            }

            // 返回成功数据
            return 'https://' . $result['Location'];
        } catch (\Exception $e) {
            $result['Code'] = 5000;
            $result['Message'] = $e->getMessage();

            // 记录日志
            $uid = defined('UID') ? UID : '';
            platformLog([
                'bucket' => $bucket,
                'key' => $object,
                'local_file_url' => $local_file_url
            ], $result, 'tencent_cos_upload_file_uid_' . $uid);

            return $result;
        }

    }

    /**
     * 将object下载到服务器指定的文件
     * @param string $object object（开头没有'/'）
     * @param string $local_file_url 本地存储路径，填写的时候以'./'开头
     * @date 2022-11-29
     */
    public function download($object, $local_file_url = '')
    {
        // 判断$object是否为带http连接的全路径
        if (strpos($object, 'https://') !== false || strpos($object, 'http://') !== false) {
            // 分割字符串
            $array = explode('://', $object);

            // 获取第1个/之后的字符串即为$object
            $index = strpos($array[1], '/');
            $object = substr($array[1], $index + 1);
        }

        // 获取文件后缀名
        $suffix = get_suffix($object);

        // 没有定义本地存储路径的时候，自动生成文件保存的本地路径
        if (!$local_file_url) {
            $local_file_url = './temp/' . md5(microtime(true)) . '.' . $suffix;
        }
        // 没有文件夹则先生成
        create_directory($local_file_url);

        // 存储桶名称，由BucketName-Appid 组成
        $bucket = $this->config['bucket_name'];

        try {
            // 实例化
            $cosClient = new \Qcloud\Cos\Client([
                'region' => $this->config['region'],
                // 协议头部，默认为http
                'schema' => Request::scheme(),
                'credentials' => [
                    'secretId' => $this->config['secret_id'],
                    'secretKey' => $this->config['secret_key']
                ]
            ]);

            // 下载
            $result = $cosClient->download($bucket, $object, $local_file_url);

            // 结果转为数组
            $result = $this->resultToArray($result);

            // 记录日志
            $uid = defined('UID') ? UID : '';
            platformLog([
                'bucket' => $bucket,
                'key' => $object,
                'local_file_url' => $local_file_url
            ], $result, 'tencent_cos_get_object_uid_' . $uid);

            // 返回成功数据
            return [
                // 本地路径
                'local_file_url' => $local_file_url,
                // 带域名的本地路径
                'domain_local_file_url' => Request::domain(true) . substr($local_file_url, 1)
            ];
        } catch (\Exception $e) {
            // 返回报错
            $result['Code'] = 5000;
            $result['Message'] = $e->getMessage();

            // 记录日志
            $uid = defined('UID') ? UID : '';
            platformLog([
                'bucket' => $bucket,
                'key' => $object,
                'local_file_url' => $local_file_url
            ], $result, 'tencent_cos_get_object_uid_' . $uid);

            // 返回错误数据
            return $result;
        }
    }


    /**
     * 删除cos文件
     * @param string $object object路径，已包含项目文件夹路径
     * @date 2022-11-29
     */
    function deleteObject($object)
    {
        // 判断$object是否为带http连接的全路径
        if (strpos($object, 'https://') !== false || strpos($object, 'http://') !== false) {
            // 分割字符串
            $array = explode('://', $object);

            // 获取第1个/之后的字符串即为$object
            $index = strpos($array[1], '/');
            $object = substr($array[1], $index + 1);
        }


        // 存储桶名称，由BucketName-Appid 组成
        $bucket = $this->config['bucket_name'];

        try {
            // 实例化
            $cosClient = new \Qcloud\Cos\Client([
                'region' => $this->config['region'],
                // 协议头部，默认为http
                'schema' => Request::scheme(),
                'credentials' => [
                    'secretId' => $this->config['secret_id'],
                    'secretKey' => $this->config['secret_key']
                ]
            ]);

            // 下载
            $result = $cosClient->deleteObject([
                'Bucket' => $bucket,
                'Key' => $object
            ]);

            // 结果转为数组
            $result = $this->resultToArray($result);

            // 记录日志
            $uid = defined('UID') ? UID : '';
            platformLog([
                'bucket' => $bucket,
                'key' => $object
            ], $result, 'tencent_cos_delete_object_uid_' . $uid);

            // 返回成功数据
            return $result;
        } catch (\Exception $e) {
            // 返回报错
            $result['Code'] = 5000;
            $result['Message'] = $e->getMessage();

            // 记录日志
            $uid = defined('UID') ? UID : '';
            platformLog([
                'bucket' => $bucket,
                'key' => $object
            ], $result, 'tencent_cos_delete_object_uid_' . $uid);

            // 返回错误数据
            return $result;
        }
    }
}