package com.wmc.util;

import com.wmc.exception.BusinessException;
import com.google.gson.Gson;
import com.qiniu.common.QiniuException;
import com.qiniu.http.Response;
import com.qiniu.storage.BucketManager;
import com.qiniu.storage.Configuration;
import com.qiniu.storage.Region;
import com.qiniu.storage.UploadManager;
import com.qiniu.storage.model.DefaultPutRet;
import com.qiniu.util.Auth;

public class QiniuUtils {
    //秘钥管理中的AK
    public  static String accessKey = "vxaagab8o06QH6X_15bskIoOhLMXZM4FMEHmxBT8";
    //秘钥管理中的SK
    public  static String secretKey = "dWz61SFxHAr75bDQ5EjgfrJrEi2IydV51h9ILZ9u";
    //空间名称
    public  static String bucket = "zk-bs";

    /**
     * 文件上传:根据文件的绝对路径上传
     * @param filePath 上传文件的绝对路径
     * @param fileName 自定义的上传到七牛云上的文件名
     */
    public static void upload2Qiniu(String filePath,String fileName){
        //构造一个带指定Zone对象的配置类
        Configuration cfg = new Configuration(Region.region2());
        UploadManager uploadManager = new UploadManager(cfg);
        Auth auth = Auth.create(accessKey, secretKey);
        String upToken = auth.uploadToken(bucket);
        try {
            Response response = uploadManager.put(filePath, fileName, upToken);
            //解析上传成功的结果
            DefaultPutRet putRet =
                    new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
        } catch (QiniuException ex) {
            throw new BusinessException("上传失败");
        }
    }

    /**
     * 文件上传:根据字节数组上传
     * @param bytes 文件数组
     * @param fileName 七牛云上的文件名
     */
    public static void upload2Qiniu(byte[] bytes, String fileName){
        //构造一个带指定Zone对象的配置类
        Configuration cfg = new Configuration(Region.region2());
        //...其他参数参考类注释
        UploadManager uploadManager = new UploadManager(cfg);
        //默认不指定key的情况下,以文件内容的hash值作为文件名
        String key = fileName;
        Auth auth = Auth.create(accessKey, secretKey);
        String upToken = auth.uploadToken(bucket);
        try {
            Response response = uploadManager.put(bytes, key, upToken);
            //解析上传成功的结果
            DefaultPutRet putRet =
                    new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
            System.out.println(putRet.key);
            System.out.println(putRet.hash);
        } catch (QiniuException ex) {
            throw new BusinessException("上传失败");
        }
    }

    /**
     * 删除文件
     * @param fileName
     */
    public static void deleteFileFromQiniu(String fileName){
        //构造一个带指定Zone对象的配置类
        Configuration cfg = new Configuration(Region.region2());
        String key = fileName;
        Auth auth = Auth.create(accessKey, secretKey);
        BucketManager bucketManager = new BucketManager(auth, cfg);
        try {
            bucketManager.delete(bucket, key);
        } catch (QiniuException ex) {
            //如果遇到异常,说明删除失败
            throw new BusinessException("删除失败");
        }
    }


}