package com.bwie.common.utils;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.model.GetObjectRequest;
import com.aliyun.oss.model.PutObjectRequest;
import lombok.extern.log4j.Log4j2;
import org.springframework.web.multipart.MultipartFile;

import java.io.*;
import java.time.LocalDateTime;
import java.util.UUID;

/**
 * Oss服务调用
 */
@Log4j2
public class OssUtil {

    /**
     * Endpoint 存储对象概述  阿里云主账号AccessKey，accessKeySecret拥有所有API的访问权限  访问路径前缀  存储对象概述
     */
    private static String endPoint = "oss-cn-shanghai.aliyuncs.com";
    private static String accessKeyId = "LTAI5tPHcqEdn49yrDCNpLhb";
    private static String accessKeySecret = "C29u7EmS0TFlgMBzVszvuPFUxsKJuW";
    private static String accessPre = "https://liushiqian.oss-cn-shanghai.aliyuncs.com/";

    /**
     * bucket名称
     * @return
     */
    private static String bucketName = "liushiqian";

    private static OSS ossClient ;

    static {
        ossClient = new OSSClientBuilder().build(
                endPoint,
                accessKeyId,
                accessKeySecret);
        log.info("oss服务连接成功！");
    }

    /**
     * 默认路径上传本地文件
     * @param filePath
     */
    public static String uploadFile(String filePath){
        return uploadFileForBucket(bucketName,getOssFilePath(filePath) ,filePath);
    }

    /**
     * 默认路径上传multipartFile文件
     * @param multipartFile
     */
    public static String uploadMultipartFile(MultipartFile multipartFile) {
        return uploadMultipartFile(bucketName,getOssFilePath(multipartFile.getOriginalFilename()),multipartFile);
    }
    /**
     * 上传 multipartFile 类型文件
     * @param bucketName
     * @param ossPath
     * @param multipartFile
     */
    public static String uploadMultipartFile(String bucketName , String ossPath , MultipartFile multipartFile){
        InputStream inputStream = null;
        try {
            inputStream = multipartFile.getInputStream();
        } catch (IOException e) {
            e.printStackTrace();
        }
        uploadFileInputStreamForBucket(bucketName, ossPath, inputStream);
        return accessPre+ossPath;
    }

    /**
     * 使用File上传PutObject上传文件 ** 程序默认使用次方法上传
     * @param bucketName 实例名称
     * @param ossPath oss存储路径
     * @param filePath 本地文件路径
     */
    public static String uploadFileForBucket(String bucketName , String ossPath , String filePath) {
        // 创建PutObjectRequest对象。
        PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, ossPath, new File(filePath));

        // 上传
        ossClient.putObject(putObjectRequest);
        return accessPre+ossPath;
    }

    /**
     * 使用文件流上传到指定的bucket实例
     * @param bucketName 实例名称
     * @param ossPath oss存储路径
     * @param filePath 本地文件路径
     */
    public static String uploadFileInputStreamForBucket(String bucketName , String ossPath , String filePath){

        // 填写本地文件的完整路径。如果未指定本地路径，则默认从示例程序所属项目对应本地路径中上传文件流。
        InputStream inputStream = null;
        try {
            inputStream = new FileInputStream(filePath);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        // 填写Bucket名称和Object完整路径。Object完整路径中不能包含Bucket名称。
        uploadFileInputStreamForBucket(bucketName, ossPath, inputStream);
        return accessPre+ossPath;
    }

    public static void uploadFileInputStreamForBucket(String bucketName , String ossPath , InputStream inputStream ){
        ossClient.putObject(bucketName, ossPath, inputStream);
    }

    /**
     * 下载
     * @param ossFilePath
     * @param filePath
     */
    public static void downloadFile(String ossFilePath , String filePath ){
        downloadFileForBucket(bucketName , ossFilePath , filePath);
    }
    /**
     * 下载
     * @param bucketName 实例名称
     * @param ossFilePath oss存储路径
     * @param filePath 本地文件路径
     */
    public static void downloadFileForBucket(String bucketName , String ossFilePath , String filePath ){
        ossClient.getObject(new GetObjectRequest(bucketName, ossFilePath), new File(filePath));
    }

    /**
     *
     * @return
     */
    public static String getOssDefaultPath(){
        LocalDateTime now = LocalDateTime.now();
        String url =
                now.getYear()+"/"+
                now.getMonth()+"/"+
                now.getDayOfMonth()+"/"+
                now.getHour()+"/"+
                now.getMinute()+"/";
        return url;
    }

    public static String getOssFilePath(String filePath){
        String fileSuf = filePath.substring(filePath.indexOf(".") + 1);
        return getOssDefaultPath() + UUID.randomUUID().toString() + "." + fileSuf;
    }

}