package com.fdkankan.fyun.http;

import cn.hutool.core.io.FileUtil;
import com.alibaba.fastjson.JSONObject;
import com.fdkankan.common.constant.ErrorCode;
import com.fdkankan.common.exception.BusinessException;
import com.fdkankan.common.util.FileUtils;
import com.fdkankan.fyun.face.AbstractFYunFileService;
import com.fdkankan.fyun.http.config.HttpFyunConfig;
import com.fdkankan.fyun.http.entity.Result;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
import org.springframework.util.ObjectUtils;
import org.springframework.web.client.RestTemplate;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Component
@ConditionalOnProperty(name = "fyun.type", havingValue = "https")
public class HttpFileService extends AbstractFYunFileService {

    private Logger log = LoggerFactory.getLogger(this.getClass().getName());

    private RestTemplate restTemplate = new RestTemplate();

    @Autowired
    private HttpFyunConfig httpFyunConfig;

    @Value("${nas.dir.base:/mnt}")
    private String nasBasePath;

    @Override
    public String uploadFile(String bucket, byte[] data, String remoteFilePath) {
        log.info("fyun http utils upload file by bytes,bucket:{},remoteFilePath:{}", bucket, remoteFilePath);
        try {
            // 先将文件保存至本地
            String fileName = remoteFilePath.substring(remoteFilePath.lastIndexOf("/") + 1);
            String localFilePath = nasBasePath + httpFyunConfig.getLocalTempPath() + fileName;
            log.info("local temp file path:{}", localFilePath);
            FileUtil.writeBytes(data, localFilePath);
            uploadFile(bucket, localFilePath, remoteFilePath, null);
            // FileUtils.deleteFile(nasBasePath + httpFyunConfig.getLocalTempPath() + fileName);
        } catch (Exception e) {
            log.error("oss上传文件失败", e);
            e.printStackTrace();
        }
        return null;
    }

    @Override
    public String uploadFile(String bucket, String filePath, String remoteFilePath) {
        log.info("fyun http utils upload file by filePath,bucket:{},filePath:{},remoteFilePath:{}", bucket, filePath, remoteFilePath);
        return uploadFile(bucket, filePath, remoteFilePath, null);
    }

    @Override
    public String uploadFile(String bucket, InputStream inputStream, String remoteFilePath) {
        log.info("fyun http utils upload file by stream,bucket:{},remoteFilePath:{}", bucket, remoteFilePath);
        try {
            // 先将文件保存至本地
            String fileName = remoteFilePath.substring(remoteFilePath.lastIndexOf("/") + 1);
            String localFilePath = nasBasePath + httpFyunConfig.getLocalTempPath() + fileName;
            FileUtil.writeFromStream(inputStream, localFilePath);
            uploadFile(bucket, localFilePath, remoteFilePath, null);
            // FileUtils.deleteFile(nasBasePath + httpFyunConfig.getLocalTempPath() + fileName);
        } catch (Exception e) {
            log.error("oss上传文件失败", e);
            e.printStackTrace();
        }
        return null;
    }

    @Override
    public String uploadFile(String bucket, String filePath, String remoteFilePath, Map<String, String> headers) {
        log.info("Fyun httpUtils upload File by filePath with headers , bucket:{},filePath:{},remoteFilePath:{},headers:{}",
                bucket, filePath, remoteFilePath, headers == null ? "{}" : JSONObject.toJSONString(headers));
        try {

            File file = new File(filePath);
            if (!file.exists()) {
                log.error("要上传的文件不存在：" + filePath);
                return null;
            }

            if (filePath.startsWith(nasBasePath)) {
                filePath = filePath.replace(nasBasePath, "");
            }else{
                log.info("先将文件{}拷贝至{}", filePath, nasBasePath + filePath);
                FileUtils.copyFile(filePath, nasBasePath + filePath, true);
            }

            if (!remoteFilePath.startsWith(File.separator)) {
                remoteFilePath = File.separator.concat(remoteFilePath);
            }

            Map<String, Object> params = new HashMap<>();
            params.put("appName", fYunFileConfig.getKey());
            params.put("secret", fYunFileConfig.getSecret());
            params.put("fileName", filePath);
            params.put("targetPath", remoteFilePath);

            String url = fYunFileConfig.getEndPoint() + httpFyunConfig.getUploadFile();

            log.info("url:{},params:{}", url, JSONObject.toJSONString(params));

            ResponseEntity<Result> responseEntity = restTemplate.postForEntity(url, params, Result.class);
            log.info("Fyun Http Utils upload，url:{},params:{},结果,{}", url, JSONObject.toJSONString(params), JSONObject.toJSONString(responseEntity.getBody()));
            if (responseEntity.getStatusCode() != HttpStatus.OK || responseEntity.getBody().getCode() != Result.CODE_SUCCESS) {
                log.error("Fyun Http Utils upload failed!");
                return null;
            }
            log.info("文件上传成功，path:{}", filePath);
        } catch (Exception e) {
            log.error("oss上传文件失败", e);
            e.printStackTrace();
        }
        return null;
    }

    @Override
    public String uploadFileByCommand(String bucket, String filePath, String remoteFilePath) {

        log.info("uploadFileByCommand,bucket:{},filePath:{},remoteFilePath:{}", bucket, filePath, remoteFilePath);

        if (filePath.substring(filePath.lastIndexOf(File.separator)).contains(".")) {
            log.info("转上传文件");
            return uploadFile(bucket, filePath, remoteFilePath);
        }

        // 上传文件夹
        Map<String, Object> params = new HashMap<>();
        params.put("appName", fYunFileConfig.getKey());
        params.put("secret", fYunFileConfig.getSecret());

        if (filePath.startsWith(nasBasePath)) {
            filePath = filePath.replace(nasBasePath, "");
        }else{
            log.info("先将文件{}拷贝至{}", filePath, nasBasePath + filePath);
            FileUtils.copyFile(filePath, nasBasePath + filePath, true);
        }

        if (filePath.endsWith(File.separator)) {
            filePath = filePath.substring(0, remoteFilePath.length() - 1);
        }

        if (!remoteFilePath.startsWith(File.separator)) {
            remoteFilePath = File.separator.concat(remoteFilePath);
        }

        if (remoteFilePath.endsWith(File.separator)) {
            remoteFilePath = remoteFilePath.substring(0, remoteFilePath.length() - 1);
        }

        params.put("dirName", filePath);
        params.put("targetPath", remoteFilePath);
        String url = fYunFileConfig.getEndPoint() + httpFyunConfig.getUploadDir();

        log.info("url:{},params:{}", url, JSONObject.toJSONString(params));

        ResponseEntity<Result> responseEntity = restTemplate.postForEntity(url, params, Result.class);
        log.info("Fyun Http Utils upload folder，url:{},params:{},结果,{}", url, JSONObject.toJSONString(params), JSONObject.toJSONString(responseEntity.getBody()));
        if (responseEntity.getStatusCode() != HttpStatus.OK || responseEntity.getBody().getCode() != Result.CODE_SUCCESS) {
            log.error("Fyun Http Utils upload folder failed!");
        }
        return null;
    }

    @Override
    public void downloadFileByCommand(String bucket, String localPath, String remoteFilePath) {
        log.info("Fyun http utils download folder by command ,bucket:{},localPath:{},remoteFilePath:{}", bucket, localPath, remoteFilePath);
        if(remoteFilePath.substring(remoteFilePath.lastIndexOf(File.separator)).contains(".")){
            log.info("转下载文件");
            downloadFile(remoteFilePath,localPath);
        }
        // 下载文件夹
        Map<String, Object> params = new HashMap<>();
        params.put("appName", fYunFileConfig.getKey());
        params.put("secret", fYunFileConfig.getSecret());
        if (remoteFilePath.endsWith(File.separator)) {
            remoteFilePath = remoteFilePath.substring(0, remoteFilePath.length() - 1);
        }

        if (!remoteFilePath.startsWith(File.separator)) {
            remoteFilePath = File.separator + remoteFilePath;
        }

        params.put("dirName", remoteFilePath);

        if (localPath.startsWith(nasBasePath)) {
            localPath = localPath.replace(nasBasePath, "");
        }

        if (localPath.endsWith(File.separator)) {
            localPath = localPath.substring(0, localPath.length() - 1);
        }

        params.put("targetPath", localPath);
        String url = fYunFileConfig.getEndPoint() + httpFyunConfig.getDownloadDir();

        log.info("url:{},params:{}", url, JSONObject.toJSONString(params));

        ResponseEntity<Result> responseEntity = restTemplate.postForEntity(url, params, Result.class);
        log.info("Fyun Http Utils download folder，url:{},params:{},结果,{}", url, JSONObject.toJSONString(params), JSONObject.toJSONString(responseEntity.getBody()));
        if (responseEntity.getStatusCode() != HttpStatus.OK || responseEntity.getBody().getCode() != Result.CODE_SUCCESS) {
            log.error("Fyun Http Utils download folder failed!");
        }else{
            waitFileReadable(nasBasePath+localPath);
        }
    }

    @Override
    public void deleteFile(String bucket, String remoteFilePath) throws IOException {
        try {

            log.info("deleteFile,bucket:{},remoteFilePath:{}", bucket, remoteFilePath);

            Map<String, Object> params = new HashMap<>();
            params.put("appName", fYunFileConfig.getKey());
            params.put("secret", fYunFileConfig.getSecret());

            if (!remoteFilePath.startsWith(File.separator)) {
                remoteFilePath = File.separator.concat(remoteFilePath);
            }

            params.put("fileName", remoteFilePath);
            String url = fYunFileConfig.getEndPoint() + httpFyunConfig.getDeleteFile();

            log.info("url:{},params:{}", url, JSONObject.toJSONString(params));

            ResponseEntity<Result> responseEntity = restTemplate.postForEntity(url, params, Result.class);
            log.info("Fyun Http Utils delete file，url:{},params:{},结果,{}", url, JSONObject.toJSONString(params), JSONObject.toJSONString(responseEntity.getBody()));
            if (responseEntity.getStatusCode() != HttpStatus.OK || responseEntity.getBody().getCode() != Result.CODE_SUCCESS) {
                log.error("Fyun Http Utils delete file failed!");
            }
            log.info("文件删除成功，path:{}", remoteFilePath);
        } catch (Exception e) {
            log.error("OSS删除文件失败,key=" + remoteFilePath);
            e.printStackTrace();
        }
    }

    @Override
    public void deleteFolder(String bucket, String remoteFolderPath) {
        try {

            log.info("delete folder,bucket:{},remoteFilePath:{}", bucket, remoteFolderPath);

            Map<String, Object> params = new HashMap<>();
            params.put("appName", fYunFileConfig.getKey());
            params.put("secret", fYunFileConfig.getSecret());

            if (!remoteFolderPath.startsWith(File.separator)) {
                remoteFolderPath = File.separator.concat(remoteFolderPath);
            }

            params.put("dirName", remoteFolderPath);
            String url = fYunFileConfig.getEndPoint() + httpFyunConfig.getDeleteDir();

            log.info("url:{},params:{}", url, JSONObject.toJSONString(params));

            ResponseEntity<Result> responseEntity = restTemplate.postForEntity(url, params, Result.class);
            log.info("Fyun Http Utils delete folder，url:{},params:{},结果,{}", url, JSONObject.toJSONString(params), JSONObject.toJSONString(responseEntity.getBody()));
            if (responseEntity.getStatusCode() != HttpStatus.OK || responseEntity.getBody().getCode() != Result.CODE_SUCCESS) {
                log.error("Fyun Http Utils delete folder failed!");
                return;
            }
            log.info("文件夹删除成功，path:{}", remoteFolderPath);
        } catch (Exception e) {
            log.error("OSS删除文件失败,key=" + remoteFolderPath);
            e.printStackTrace();
        }
    }

    @Override
    public void uploadMulFiles(String bucket, Map<String, String> filepaths) {
        try {
            for (Map.Entry<String, String> entry : filepaths.entrySet()) {
                uploadFile(bucket, entry.getKey(), entry.getValue(), null);
            }
        } catch (Exception e) {
            log.error("OSS批量上传文件失败！");
        }
    }

    @Override
    public List<String> listRemoteFiles(String bucket, String sourcePath) {
        try {

            log.info("list files under path,bucket:{},sourcePath:{}", bucket, sourcePath);

            Map<String, Object> params = new HashMap<>();
            params.put("appName", fYunFileConfig.getKey());
            params.put("secret", fYunFileConfig.getSecret());

            if (!sourcePath.startsWith(File.separator)) {
                sourcePath = File.separator.concat(sourcePath);
            }

            params.put("dirName", sourcePath);
            String url = fYunFileConfig.getEndPoint() + httpFyunConfig.getListDir();

            log.info("url:{},params:{}", url, JSONObject.toJSONString(params));

            ResponseEntity<Result> responseEntity = restTemplate.postForEntity(url, params, Result.class);
            log.info("Fyun Http Utils list dir，url:{},params:{},结果,{}", url, JSONObject.toJSONString(params), JSONObject.toJSONString(responseEntity.getBody()));
            if (responseEntity.getStatusCode() != HttpStatus.OK || responseEntity.getBody().getCode() != Result.CODE_SUCCESS) {
                log.error("Fyun Http Utils list dir failed!");
                throw new BusinessException(ErrorCode.FAILURE_CODE_3002);
            }
            log.info("文件列举成功，path:{}", sourcePath);
            return JSONObject.parseArray(JSONObject.toJSONString(responseEntity.getBody()),String.class);
        } catch (Exception e) {
            log.error("列举文件目录失败,key=" + sourcePath, e);
            throw new BusinessException(ErrorCode.FAILURE_CODE_3002);
        }
    }

    @Override
    public void copyFileBetweenBucket(String sourceBucketName, String sourcePath, String targetBucketName, String targetPath) {
        try {

            log.info("copy file between bucket,sourceBucket:{},sourcePath:{},targetBucketName,{},targetPath:{}", sourceBucketName, sourcePath, targetBucketName, targetPath);

            Map<String, Object> params = new HashMap<>();
            params.put("appName", fYunFileConfig.getKey());
            params.put("secret", fYunFileConfig.getSecret());

            if (!targetPath.startsWith(File.separator)) {
                targetPath = File.separator.concat(targetPath);
            }

            if (targetPath.endsWith(File.separator)) {
                targetPath = targetPath.substring(0, targetPath.length() - 1);
            }

            params.put("targetDir", targetPath);
            String url;

            if (!sourcePath.startsWith(File.separator)) {
                sourcePath = File.separator.concat(sourcePath);
            }

            if (!sourcePath.substring(sourcePath.lastIndexOf(File.separator)).contains(".")) {
                if (sourcePath.endsWith(File.separator)) {
                    sourcePath = sourcePath.substring(0, sourcePath.length() - 1);
                }
                params.put("dirName", sourcePath);
                url = fYunFileConfig.getEndPoint() + httpFyunConfig.getCopyDir();
            } else {
                params.put("fileName", sourcePath);
                url = fYunFileConfig.getEndPoint() + httpFyunConfig.getCopyFile();
            }

            log.info("url:{},params:{}", url, JSONObject.toJSONString(params));

            ResponseEntity<Result> responseEntity = restTemplate.postForEntity(url, params, Result.class);
            log.info("Fyun Http Utils copy file or dir，url:{},params:{},结果,{}", url, JSONObject.toJSONString(params), JSONObject.toJSONString(responseEntity.getBody()));
            if (responseEntity.getStatusCode() != HttpStatus.OK || responseEntity.getBody().getCode() != Result.CODE_SUCCESS) {
                log.error("Fyun Http Utils copy file or dir failed!");
                return;
            }
            log.info("文件拷贝成功，path:{}", targetPath);
        } catch (Exception e) {
            log.error("列举文件目录失败,key=" + sourcePath);
        }
    }

    @Override
    public void copyFilesBetweenBucket(String sourceBucketName, String targetBucketName, Map<String, String> pathMap) {
        log.info("copy files between bucket,sourceBucket:{},targetBucketName:{},pathMaps:{}", sourceBucketName, targetBucketName, JSONObject.toJSONString(pathMap));
        if (ObjectUtils.isEmpty(pathMap)) {
            return;
        }
        try {
            for (Map.Entry<String, String> entry : pathMap.entrySet()) {
                copyFileBetweenBucket(sourceBucketName, entry.getKey(), targetBucketName, entry.getValue());
            }
        } catch (Exception e) {
            log.error("批量复制文件失败!");
        }
    }

    @Override
    public String getFileContent(String bucketName, String remoteFilePath) {
        try {
            log.info("获取文件内容：{}", remoteFilePath);

            if (!remoteFilePath.startsWith(File.separator)) {
                remoteFilePath = File.separator.concat(remoteFilePath);
            }

            // 先将文件下载到本地
            String fileName = remoteFilePath.substring(remoteFilePath.lastIndexOf("/") + 1);
            downloadFile(remoteFilePath, nasBasePath + httpFyunConfig.getLocalTempPath() + fileName);
            String content = FileUtils.readFile(nasBasePath + httpFyunConfig.getLocalTempPath() + fileName);
            // FileUtils.deleteFile(nasBasePath + httpFyunConfig.getLocalTempPath() + fileName);
            return content;
        } catch (Exception e) {
            log.error("获取文件内容失败：{}", remoteFilePath);
            return null;
        }
    }

    @Override
    public boolean fileExist(String bucket, String objectName) {

        log.info("file exist check ,bucket:{},remoteFilePath:{}", bucket, objectName);

        try {
            Map<String, Object> params = new HashMap<>();
            params.put("appName", fYunFileConfig.getKey());
            params.put("secret", fYunFileConfig.getSecret());

            if (!objectName.startsWith(File.separator)) {
                objectName = File.separator.concat(objectName);
            }

            params.put("fileName", objectName);
            String url = fYunFileConfig.getEndPoint() + httpFyunConfig.getFileExist();
            log.info("url:{},params:{}", url, JSONObject.toJSONString(params));
            ResponseEntity<Result> responseEntity = restTemplate.postForEntity(url, params, Result.class);
            log.info("Fyun Http Utils check file exist，url:{},params:{},结果,{}", url, JSONObject.toJSONString(params), JSONObject.toJSONString(responseEntity.getBody()));
            if (responseEntity.getStatusCode() != HttpStatus.OK || responseEntity.getBody().getCode() != Result.CODE_SUCCESS) {
                log.error("Fyun Http Utils check file exist failed!");
                return false;
            }
            return Boolean.parseBoolean(responseEntity.getBody().getData().toString());
        } catch (Exception e) {
            log.error("判断文件是否存在失败：{}", objectName);
            return false;
        }
    }

    @Override
    public void downloadFile(String bucket, String remoteFilePath, String localPath) {
        log.info(" download file ,bucket:{},remoteFilePath:{},localPath:{}", bucket, remoteFilePath, localPath);
        try {
            File localFile = new File(localPath);
            if (!localFile.getParentFile().exists()) {
                localFile.getParentFile().mkdirs();
            }
            if (localFile.isDirectory()) {
                String fileName = remoteFilePath.substring(remoteFilePath.lastIndexOf("/") + 1);
                log.info("未配置文件名，使用默认文件名：{}", fileName);
                localPath = localPath.concat(File.separator).concat(fileName);
            }
            Map<String, Object> params = new HashMap<>();
            params.put("appName", fYunFileConfig.getKey());
            params.put("secret", fYunFileConfig.getSecret());

            if (!remoteFilePath.startsWith(File.separator)) {
                remoteFilePath = File.separator.concat(remoteFilePath);
            }

            params.put("fileName", remoteFilePath);

            if (new File(localPath).exists()) {
                FileUtils.deleteFile(localPath);
            }

            if (localPath.startsWith(nasBasePath)) {
                localPath = localPath.replace(nasBasePath, "");
            }

            params.put("targetPath", localPath);
            String url = fYunFileConfig.getEndPoint() + httpFyunConfig.getDownloadFile();

            log.info("url:{},params:{}", url, JSONObject.toJSONString(params));

            ResponseEntity<Result> responseEntity = restTemplate.postForEntity(url, params, Result.class);
            log.info("Fyun Http Utils download file，url:{},params:{},结果,{}", url, JSONObject.toJSONString(params), JSONObject.toJSONString(responseEntity.getBody()));
            if (responseEntity.getStatusCode() != HttpStatus.OK || responseEntity.getBody().getCode() != Result.CODE_SUCCESS) {
                log.error("Fyun Http Utils download file failed!");
            }else{
                waitFileReadable(nasBasePath+localPath);
            }
        } catch (Throwable throwable) {
            log.error("文件下载失败：{}", remoteFilePath);
            throwable.printStackTrace();
        }
    }

    @Override
    public URL getPresignedUrl(String bucket, String url) {
        throw new UnsupportedOperationException("不支持此操作！");
    }

    @Override
    public long getSubFileNums(String bucket, String url) {
        return 0;
    }

    private void waitFileReadable(String path){
        if (new File(path).exists()) {
            log.info("文件已存在：{}", path);
            return;
        }
        for (long i = 0; i < 36; i++) {
            log.info("开始第{}次检查文件：{}", i + 1, path);
            try {
                Thread.sleep(5000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            if (new File(path).exists()) {
                return;
            }
        }
        log.error("文件不存在：{}", path);

    }

}