package com.caimei.utils;

import com.aliyun.oss.HttpMethod;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.model.*;
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.auth.sts.AssumeRoleRequest;
import com.aliyuncs.auth.sts.AssumeRoleResponse;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.profile.DefaultProfile;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.Date;
import java.util.HashMap;
import java.util.UUID;

@Component
public class OSSUtils {
    private static String endpoint;

    @Value("${aliyunConfig.endpoint}")
    public void setEndpoint(String endpoints) {
        endpoint = endpoints;
    }

    private static String accessKeyId;

    @Value("${aliyunConfig.accessKeyId}")
    public void setAccessKeyId(String accessKeyIds) {
        accessKeyId = accessKeyIds;
    }

    private static String accessKeySecret;

    @Value("${aliyunConfig.accessKeySecret}")
    public void setAccessKeySecret(String accessKeySecrets) {
        accessKeySecret = accessKeySecrets;
    }

    private static String privateBucket;

    @Value("${aliyunConfig.bucketName}")
    public void setPrivateBucket(String bucketName) {
        privateBucket = bucketName;
    }

    private static String active;

    @Value("${spring.profiles.active}")
    public void setActive(String actives) {
        active = actives;
    }

    public static HashMap<String, String> getToken() {
        //构建一个阿里云客户端，用于发起请求。
        //设置调用者（RAM用户或RAM角色）的AccessKey ID和AccessKey Secret。
        DefaultProfile profile = DefaultProfile.getProfile("oss-cn-shenzhen", accessKeyId, accessKeySecret);
        IAcsClient client = new DefaultAcsClient(profile);

        //构造请求，设置参数。
        AssumeRoleRequest request = new AssumeRoleRequest();
        request.setRegionId(endpoint);
        request.setRoleArn("acs:ram::1565565840178476:role/caimeitst");
        request.setRoleSessionName("TSTtest");
        AssumeRoleResponse response = null;
        try {
            response = client.getAcsResponse(request);
        } catch (ClientException e) {
            e.printStackTrace();
        }
        String requestId = response.getRequestId();
        String securityToken = response.getCredentials().getSecurityToken();
        String accessKeySecret = response.getCredentials().getAccessKeySecret();
        String accessKeyId = response.getCredentials().getAccessKeyId();
        HashMap<String, String> tokenMap = new HashMap<>(5);
        tokenMap.put("requestId", requestId);
        tokenMap.put("accessKeyId", accessKeyId);
        tokenMap.put("accessKeySecret", accessKeySecret);
        tokenMap.put("securityToken", securityToken);
        tokenMap.put("bucket", privateBucket);
        return tokenMap;
    }

    public static String ossUpload(String fileName, File file, String contentType, String contentDisposition) {
        String url = null;
        try {
            OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
            ObjectMetadata meta = new ObjectMetadata();
            meta.setObjectAcl(CannedAccessControlList.PublicRead);
            meta.setContentType(contentType);
            // 设置
            if (StringUtils.isNotEmpty(contentDisposition)) {
                meta.setContentDisposition(contentDisposition);
            }
            fileName = active + "/authFile/" + fileName;
            UploadFileRequest uploadFileRequest = new UploadFileRequest(privateBucket, fileName);
            // 指定上传的本地文件。
            uploadFileRequest.setUploadFile(file.toString());
            // 指定上传并发线程数，默认为1。
            uploadFileRequest.setTaskNum(10);
            // 指定上传的分片大小，范围为100KB~5GB，默认为文件大小/10000。
            uploadFileRequest.setPartSize(1024 * 1024);
            // 开启断点续传，默认关闭。
            uploadFileRequest.setEnableCheckpoint(true);
            uploadFileRequest.setCheckpointFile(file.getAbsolutePath() + "uploadFile.ucp");
            // 文件的元数据。
            uploadFileRequest.setObjectMetadata(meta);
            // 设置上传成功回调，参数为Callback类型。
            //uploadFileRequest.setCallback("<yourCallbackEvent>");
            // 断点续传上传。
            ossClient.uploadFile(uploadFileRequest);
            // 有效期100年
            Date expiration = new Date(System.currentTimeMillis() + 60L * 60 * 24 * 365 * 100 * 1000);
            url = ossClient.generatePresignedUrl(privateBucket, fileName, expiration).toString();
            /*GeneratePresignedUrlRequest request =
                    new GeneratePresignedUrlRequest(privateBucket, fileName, HttpMethod.PUT);//设置为这个URL只支持PUT操作
            request.setExpiration(expiration);
            request.setContentType("application/octet-stream");
            url = ossClient.generatePresignedUrl(request).toString();*/
            // 关闭OSSClient。
            ossClient.shutdown();
        } catch (Throwable e) {
            e.printStackTrace();
        }
        return url;
    }


    /**
     * 通过文件名判断并获取OSS服务文件上传时文件的contentType
     */
    public static String getContentType(String fileName) {
        String fileExtension = fileName.substring(fileName.lastIndexOf("."));
        if (".bmp".equalsIgnoreCase(fileExtension)) {
            return "image/bmp";
        }
        if (".gif".equalsIgnoreCase(fileExtension)) {
            return "image/gif";
        }
        if (".jpeg".equalsIgnoreCase(fileExtension)) {
            return "image/jpeg";
        }
        if (".jpg".equalsIgnoreCase(fileExtension)) {
            return "image/jpg";
        }
        if (".png".equalsIgnoreCase(fileExtension)) {
            return "image/png";
        }
        if (".html".equalsIgnoreCase(fileExtension)) {
            return "text/html";
        }
        if (".txt".equalsIgnoreCase(fileExtension)) {
            return "text/plain";
        }
        if (".vsd".equalsIgnoreCase(fileExtension)) {
            return "application/vnd.visio";
        }
        if (".ppt".equalsIgnoreCase(fileExtension)) {
            return "application/vnd.ms-powerpoint";
        }
        if (".pptx".equalsIgnoreCase(fileExtension)) {
            return "application/vnd.openxmlformats-officedocument.presentationml.presentation";
        }
        if (".doc".equalsIgnoreCase(fileExtension)) {
            return "application/msword";
        }
        if (".docx".equalsIgnoreCase(fileExtension)) {
            return "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
        }
        if (".xml".equalsIgnoreCase(fileExtension)) {
            return "text/xml";
        }
        if (".mp4".equalsIgnoreCase(fileExtension)) {
            return "video/mp4";
        }
        if (".mp3".equalsIgnoreCase(fileExtension)) {
            return "audio/mp3";
        }
        if (".pdf".equalsIgnoreCase(fileExtension)) {
            return "application/pdf";
        }
        if (".zip".equalsIgnoreCase(fileExtension)) {
            return "application/zip";
        }
        return "text/html";
    }

    public static void deleteFile(File... files) {
        for (File file : files) {
            //logger.info("File:[{}]",file.getAbsolutePath());
            if (file.exists()) {
                file.delete();
            }
        }
    }

    public static File ossUpload(MultipartFile file) throws IOException {
        // 获取文件名
        String fileName = file.getOriginalFilename();
        // 获取文件后缀
        String prefix = fileName.substring(fileName.lastIndexOf("."));
        // 用uuid作为文件名，防止生成的临时文件重复
        File excelFile = File.createTempFile(UUID.randomUUID().toString(), prefix);
        // MultipartFile to File
        file.transferTo(excelFile);
        //程序结束时，删除临时文件
        return excelFile;
    }

    /**
     * 授权生成签名URL临时访问
     *
     * @param fileName 文件名称
     */
    public static String getOssUrl(String fileName) {
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
        // 设置URL过期时间为1个小时
        Date expiration = new Date(System.currentTimeMillis() + 3600L * 1000);
        String url = ossClient.generatePresignedUrl(privateBucket, active + "/authFile/" + fileName, expiration).toString();
        // 关闭OSSClient。
        ossClient.shutdown();
        return url;
    }

    /**
     * oss单个文件删除
     *
     * @param fileName 文件名称或文件夹名称
     */
    public static void deleteSingleFile(String fileName) {
        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
        // 删除文件。如需删除文件夹，请将ObjectName设置为对应的文件夹名称。
        // 如果文件夹非空，则需要将文件夹下的所有object删除后才能删除该文件夹。
        ossClient.deleteObject(privateBucket, active + "/authFile/" + fileName);
        // 关闭OSSClient。
        ossClient.shutdown();
    }

    /**
     * oss单个文件下载
     */
    public static void downFile(String path, String ossName, String fileName) {
        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
        // 下载OSS文件到本地文件。如果指定的本地文件存在会覆盖，不存在则新建。
        String filePath = active + "/" + path + ossName;
        ossClient.getObject(new GetObjectRequest(privateBucket, filePath), new File("./" + fileName));
        // 关闭OSSClient。
        ossClient.shutdown();
    }

    public static void downFileByFilePath(String path, String ossName, String fileName) {
        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
        // 下载OSS文件到本地文件。如果指定的本地文件存在会覆盖，不存在则新建。
        String filePath = active + "/" + path + ossName;
        ossClient.getObject(new GetObjectRequest(privateBucket, filePath), new File(fileName));
        // 关闭OSSClient。
        ossClient.shutdown();
    }
}