package com.jilongda.common.component;


import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.common.utils.BinaryUtil;
import com.aliyun.oss.model.MatchMode;
import com.aliyun.oss.model.OSSObject;
import com.aliyun.oss.model.PolicyConditions;
import com.aliyun.oss.model.PutObjectResult;
import com.jilongda.common.basic.ApiResult;
import com.jilongda.common.utils.WebUtils;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.Map;


/**
 * @author feiyunchuan
 */
@Slf4j
@Api(tags = "Ali-OSS文件上传接口")
@RestController
@RequestMapping("/ali-oss/")
public class AliOssFileUploadController {

    @Value("${file.cdn:https://nncdn.pharmacylinked.com}")
    private String FILE_CDN;


//    @ApiOperation(value = "单文件上传", notes = "单文件上传，rename 默认不重命名")
//    @PostMapping(value = "strUpload", headers = "content-type=multipart/form-data")
//    public String strUploads(@RequestParam(value = "file") MultipartFile mf) throws IOException {
//        if (mf.isEmpty()) {
//            return "请传入文件！";
//        }
//        String fileName = mf.getOriginalFilename();
//        String TimeDir =new SimpleDateFormat("yyyy-MM-dd").format(new Date());
////        String realPath = "D:\\" + TimeDir;
//        String realPath = "/usr/local/nginx/html/images/" + TimeDir;
//        File file = new File(realPath);
//        // 没有目录就创建
//        if (!file.exists()) {
//            file.mkdirs();
//        }
//        File targetFile = new File(realPath, fileName);//目标文件
//        //开始从源文件拷贝到目标文件
//        //传图片一步到位
//        mf.transferTo(targetFile);
//        //拼接数据
//        return "http://eyes.chelota.com/images/" + TimeDir +"/"+ fileName;
//    }
    @ApiOperation(value = "服务端上传", notes = "服务端上传")
    @PostMapping(value = "upload")
    public ApiResult<String> fileUpload(@RequestParam(value = "file") MultipartFile file) throws IOException {
        InputStream inputStream = file.getInputStream();
        String filename = System.currentTimeMillis() + file.getOriginalFilename();
        // Endpoint以杭州为例，其它Region请按实际情况填写。
        final String endpoint = AliOss.endpoint;
        // 阿里云主账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM账号进行API访问或日常运维，请登录RAM控制台创建RAM账号。
        final String accessKeyId = AliOss.accessKeyId;
        final String accessKeySecret = AliOss.accessKeySecret;
        final String bucketName = AliOss.bucketName;
        // <yourObjectName>上传文件到OSS时需要指定包含文件后缀在内的完整路径，例如abc/efg/123.jpg。
        String objectName = AliOss.dir + filename;
        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
        // 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 = new FileInputStream("D:\\localpath\\examplefile.txt");
        // 依次填写Bucket名称（例如examplebucket）和Object完整路径（例如exampledir/exampleobject.txt）。Object完整路径中不能包含Bucket名称。
        PutObjectResult putObjectResult = ossClient.putObject(bucketName, objectName, inputStream);
        OSSObject ossObject = ossClient.getObject(bucketName, objectName);
        String uri = ossObject.getResponse().getUri();
        // 关闭OSSClient。
        ossClient.shutdown();
//        uri = uri.replace("http://nn-bucket.oss-cn-shanghai.aliyuncs.com",FILE_CDN);
        return ApiResult.okmsg(uri);
    }


    @ApiOperation(value = "服务端签名后直传", notes = "服务端签名后直传")
    @PostMapping("signature")
    public ApiResult<Map<String, String>> signature() {
        OSS builder = new OSSClientBuilder().build(AliOss.endpoint, AliOss.accessKeyId, AliOss.accessKeySecret);
        long expireTime = 30;
        long expireEndTime = System.currentTimeMillis() + expireTime * 1000;
        Date expiration = new Date(expireEndTime);
        PolicyConditions policyConds = new PolicyConditions();
        policyConds.addConditionItem(PolicyConditions.COND_CONTENT_LENGTH_RANGE, 0, 1048576000);
        policyConds.addConditionItem(MatchMode.StartWith, PolicyConditions.COND_KEY, AliOss.dir);
        String postPolicy = builder.generatePostPolicy(expiration, policyConds);
        byte[] binaryData = postPolicy.getBytes(StandardCharsets.UTF_8);
        String encodedPolicy = BinaryUtil.toBase64String(binaryData);
        String postSignature = builder.calculatePostSignature(postPolicy);
        Map<String, String> respMap = new LinkedHashMap<>(6);
        respMap.put("accessid", AliOss.accessKeyId);
        respMap.put("policy", encodedPolicy);
        respMap.put("signature", postSignature);
        // 示例为dir
        respMap.put("dir", AliOss.dir);
        // 前端为key
        // respMap.put("key", AliOss.dir);
        respMap.put("host", AliOss.host);
//        respMap.put("cdn", AliOss.cdn);
        respMap.put("expire", String.valueOf(expireEndTime / 1000));
//        // 回调
//        if (StringUtils.hasLength(AliOss.callbackUrl)) {
//            JSONObject jasonCallback = new JSONObject();
//            jasonCallback.put("callbackUrl", AliOss.callbackUrl);
//            String callbackBody = "{\"filename\":${object},\"size\":${size},\"mimeType\":${mimeType}}";
//            jasonCallback.put("callbackBody", callbackBody);
//            jasonCallback.put("callbackBodyType", "application/json");
//            String base64CallbackBody = BinaryUtil.toBase64String(jasonCallback.toString().getBytes());
//            respMap.put("callback", base64CallbackBody);
//        }

        HttpServletResponse response = WebUtils.response();
        assert response != null;
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "GET, POST");

        // 关闭OSSClient。
        builder.shutdown();
        return ApiResult.success(respMap);
    }

    @ApiOperation(value = "服务端上传(二进制字符串)", notes = "服务端上传")
    @PostMapping(value = "str/upload")
    public String strUpload(InputStream inputStream, String filename) throws IOException {
        //String filename = System.currentTimeMillis() + CodeGenerateUtils.generateVolumeSn()+".jpg";
        // Endpoint以杭州为例，其它Region请按实际情况填写。
        final String endpoint = AliOss.endpoint;
        // 阿里云主账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM账号进行API访问或日常运维，请登录RAM控制台创建RAM账号。
        final String accessKeyId = AliOss.accessKeyId;
        final String accessKeySecret = AliOss.accessKeySecret;
        final String bucketName = AliOss.bucketName;
        // <yourObjectName>上传文件到OSS时需要指定包含文件后缀在内的完整路径，例如abc/efg/123.jpg。
        String objectName = AliOss.dir + filename;
        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
        // 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 = new FileInputStream("D:\\localpath\\examplefile.txt");
        // 依次填写Bucket名称（例如examplebucket）和Object完整路径（例如exampledir/exampleobject.txt）。Object完整路径中不能包含Bucket名称。
        PutObjectResult putObjectResult = ossClient.putObject(bucketName, objectName, inputStream);
        OSSObject ossObject = ossClient.getObject(bucketName, objectName);
        String uri = ossObject.getResponse().getUri();
        // 关闭OSSClient。
        ossClient.shutdown();
        return uri;
    }

    /**
     * oss上传成功回调
     *
     * @param callback
     * @return
     */
    @ApiOperation(value = "oss回调", notes = "oss回调")
    @PostMapping(value = "/callback")
    public ApiResult callback(@RequestBody Map<String, Object> callback) {
        String filename = "http://".concat(AliOss.bucketName).concat(".").concat(AliOss.endpoint).concat("/").concat(callback.get("filename").toString());
        return ApiResult.okmsg(filename);
    }

}