package com.hx.util;

import com.obs.services.ObsClient;
import com.obs.services.exception.ObsException;
import com.obs.services.model.HeaderResponse;
import com.obs.services.model.ObsBucket;
import com.obs.services.model.PutObjectResult;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.util.UUID;

/**华为云 OBS(OSS)
 * @author ChenJiaHe
 * @date 2021-05-06
 */
public class OBSUtil {

	//log4j日志
	private static Logger logger = LoggerFactory.getLogger(OBSUtil.class.getName());

	/** 后端调用上传图片
	 * @param localFile 图片文件
	 * @param ak 访问秘钥
	 * @param sk 访问秘钥
	 * @param endPoint 区域
	 * @param bucketName 存储桶
	 * @param fileName 文件名称（带后缀），为空时自动生成
	 * @return
	 * @throws IOException
	 */
	public static PutObjectResult uploadImg(MultipartFile localFile,String ak,String sk,String endPoint,String bucketName,String fileName) throws IOException {

		//没有名次的时候自动生成
		if(StringUtils.isNull(fileName)){
			fileName = UUID.randomUUID().toString();
			if (localFile.getOriginalFilename().lastIndexOf(".") >= 0){
				fileName += localFile.getOriginalFilename().substring(localFile.getOriginalFilename().lastIndexOf("."));
			}
		}

		PutObjectResult putObjectResult = null;

		//初始化OBS客户端
		ObsClient obsClient = new ObsClient(ak, sk, endPoint);
		try{
			putObjectResult = obsClient.putObject(bucketName, fileName,localFile.getInputStream());
		}catch (ObsException e){
			logger.error("华为云 OBS 上传文件报错 ");
			logger.error("HTTP Code: " + e.getResponseCode());
			logger.error("Error Code:" + e.getErrorCode());
			logger.error("Error Message: " + e.getErrorMessage());

			logger.error("Request ID:" + e.getErrorRequestId());
			logger.error("Host ID:" + e.getErrorHostId());
			e.printStackTrace();
		}finally {
			if(obsClient != null){
				obsClient.close();
			}
		}

		return putObjectResult;
	}


	/** 后端调用上传图片
	 * @param localFile 存储文件
	 * @param ak 访问秘钥
	 * @param sk 访问秘钥
	 * @param endPoint 区域
	 * @param bucketName 存储桶
	 * @param fileName 文件名称（带后缀），为空时自动生成
	 * @return
	 * @throws IOException
	 */
	public static PutObjectResult uploadImg(File localFile,String ak,String sk,String endPoint,String bucketName,String fileName) throws IOException {

		//没有名次的时候自动生成
		if(StringUtils.isNull(fileName)){
			fileName = UUID.randomUUID().toString();
			if (localFile.getName().lastIndexOf(".") >= 0){
				fileName += localFile.getName().substring(localFile.getName().lastIndexOf("."));
			}
		}

		PutObjectResult putObjectResult = null;

		//初始化OBS客户端
		ObsClient obsClient = new ObsClient(ak, sk, endPoint);
		try{
			putObjectResult = obsClient.putObject(bucketName, fileName,localFile);
		}catch (ObsException e){
			logger.error("华为云 OBS 上传文件报错 ");
			logger.error("HTTP Code: " + e.getResponseCode());
			logger.error("Error Code:" + e.getErrorCode());
			logger.error("Error Message: " + e.getErrorMessage());

			logger.error("Request ID:" + e.getErrorRequestId());
			logger.error("Host ID:" + e.getErrorHostId());
			e.printStackTrace();
		}finally {
			if(obsClient != null){
				obsClient.close();
			}
		}
		return putObjectResult;

	}

	/** 创建桶
	 * @param ak 访问秘钥
	 * @param sk 访问秘钥
	 * @param endPoint 区域
	 * @param bucketName 存储桶
	 * @return
	 * @throws IOException
	 */
	public static HeaderResponse createBucket(String ak,String sk,String endPoint,String bucketName) throws IOException {

		HeaderResponse response = null;

		//初始化OBS客户端
		ObsClient obsClient = new ObsClient(ak, sk, endPoint);
		try{
			response = obsClient.createBucket(bucketName);
		}catch (ObsException e){

			logger.error("华为云 OBS 创建桶报错 ");
			logger.error("HTTP Code: " + e.getResponseCode());
			logger.error("Error Code:" + e.getErrorCode());
			logger.error("Error Message: " + e.getErrorMessage());

			logger.error("Request ID:" + e.getErrorRequestId());
			logger.error("Host ID:" + e.getErrorHostId());
			e.printStackTrace();
		}finally {
			if(obsClient != null){
				obsClient.close();
			}
		}
		return response;
	}


}