package com.fdkankan.scene.service.impl;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.io.FileUtil;
import cn.hutool.core.util.StrUtil;
import com.fdkankan.common.constant.ConstantFilePath;
import com.fdkankan.common.constant.ErrorCode;
import com.fdkankan.common.constant.UploadFilePath;
import com.fdkankan.common.exception.BusinessException;
import com.fdkankan.common.util.BASE64DecodedMultipartFile;
import com.fdkankan.common.util.FdfsUtil;
import com.fdkankan.redis.constant.RedisKey;
import com.fdkankan.scene.bean.ResultData;
import com.fdkankan.scene.entity.Scene;
import com.fdkankan.scene.entity.SceneFileMapping;
import com.fdkankan.scene.service.FYunFileService;
import com.fdkankan.scene.service.ISceneUploadService;
import com.fdkankan.scene.service.SceneFileMappingService;
import com.fdkankan.scene.service.SceneService;
import com.fdkankan.scene.vo.DeleteFileParamVO;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import javax.annotation.Resource;
import java.io.File;
import java.util.*;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author
 * @since 2022-01-19
 */
@Slf4j
@Service
public class SceneUploadServiceImpl implements ISceneUploadService {

    @Autowired
    private SceneService sceneService;
    @Autowired
    private SceneFileMappingService sceneFileMappingService;
//    @Resource
//    private FdfsUtil fdfsUtil;
    @Resource FYunFileService fYunFileService;

    @Override
    public String uploads(String imgData,String fileName,String blzType,MultipartFile[] files,
        String sceneCode,Integer type, String uploadPath, Integer subgroup) throws Exception{

        List<MultipartFile> multipartFiles = new ArrayList<>();
        if(StringUtils.isNotBlank(imgData)){
            MultipartFile file = BASE64DecodedMultipartFile.base64ToMultipart(imgData);
            multipartFiles.add(file);
        }
        if(files !=null && files.length >0){
            multipartFiles.addAll(Arrays.asList(files));
        }
        return this.uploadFiles(fileName,blzType,multipartFiles,sceneCode,type,uploadPath, subgroup);
    }

    @Override
    public ResultData delete(DeleteFileParamVO param) throws Exception {
        Scene scenePlus = sceneService.getByNum(param.getNum(), param.getSubgroup());
        if(Objects.isNull(scenePlus)){
            throw new BusinessException(ErrorCode.FAILURE_CODE_5005);
        }
        String userEditPath = String.format(UploadFilePath.USER_VIEW_PATH, param.getNum());
        List<String> filePaths = new ArrayList<>();
        Set<String> hasDelete = new HashSet<>();
        for (String fileName : param.getFileNames()) {
            if(hasDelete.contains(fileName)){
                continue;
            }
            hasDelete.add(fileName);
            String key = userEditPath + fileName;
            filePaths.add(key);
            fYunFileService.deleteFile(param.getNum(), param.getSubgroup(), key);
        }

        return ResultData.ok();
    }

    public String uploadFiles(String sendFileName,String bizType,List<MultipartFile> files,
        String num, Integer type, String uploadPath, Integer subgroup) throws Exception{
        if (StrUtil.isEmpty(num))
            throw new BusinessException(ErrorCode.PARAM_REQUIRED, "num");
        if(CollUtil.isEmpty(files))
            throw new BusinessException(ErrorCode.PARAM_REQUIRED, "files");
        if(StrUtil.isEmpty(bizType))
            throw new BusinessException(ErrorCode.PARAM_REQUIRED, "bizType");
        Scene scene = sceneService.getByNum(num, subgroup);
        if(Objects.isNull(scene))
            throw new BusinessException(ErrorCode.FAILURE_CODE_5005);

        List<String> urlList = new ArrayList<>();
        for (MultipartFile file : files) {
            String fileName = file.getOriginalFilename();
            // 获取文件后缀
            String prefix = fileName.substring(fileName.lastIndexOf("."));
//            String path = String.format(ConstantFilePath.SCENE_TMP_PATH_V4, num).concat(UUID.randomUUID().toString()).concat(prefix);
            File tempFile = File.createTempFile(UUID.randomUUID().toString() ,prefix);
//            File tempFile = FileUtil.createTempFile(prefix, true);
            String path = tempFile.getAbsolutePath();
//            FileUtil.mkParentDirs(path);
            file.transferTo(tempFile);
            String realFileName = fileName;
            if(files.size() ==1 && StringUtils.isNotBlank(sendFileName)){
                realFileName = sendFileName ;
            }

            String oldExtName = cn.hutool.core.io.FileUtil.extName(realFileName);
            String newExtName = oldExtName.toLowerCase();
            realFileName = realFileName.substring(0, realFileName.lastIndexOf(oldExtName)) + newExtName;

            String key = StrUtil.isNotBlank(uploadPath) ? uploadPath : (String.format(UploadFilePath.USER_VIEW_PATH , RedisKey.getNumStr(num, subgroup)) + realFileName);

            fYunFileService.uploadFile(num, subgroup, path, key);

            urlList.add(realFileName);

            FileUtil.del(path);

            //添加记录
        }
        StringBuilder returnString = new StringBuilder();
        for (String res : urlList) {
            if(StringUtils.isNotBlank(returnString)){
                returnString.append(",");
            }
            returnString.append(res);
        }
        return returnString.toString();
    }

//    private void updateFileByPreFix(String sceneCode, String blzType, String bucket) {
//        LambdaQueryWrapper<SceneUpload> queryWrapper = new LambdaQueryWrapper<>();
//        queryWrapper.eq(SceneUpload::getNum,sceneCode)
//                .eq(SceneUpload::getBizType,blzType);
//        List<SceneUpload> list = this.list(queryWrapper);
//
//        if(list != null && list.size() >0){
//            for (SceneUpload sceneUpload : list) {
//                try {
//                    fYunFileService.deleteFile(bucket, sceneUpload.getFilePath());
//                    this.removeEntity(sceneUpload);
//                }catch (Exception e){
//                    log.error(sceneUpload.getFilePath()+"删除oss文件失败",e);
//                }
//            }
//        }
//    }
//
//    private void removeEntity(SceneUpload sceneUpload) {
//        sceneUpload.setRecStatus(RecStatus.VALID.code());
//        this.updateById(sceneUpload);
//    }
//
//    private void saveData(String sceneCode, String ossPath, String bizType,Long userId) {
//        SceneUpload sceneUpload = new SceneUpload();
//        sceneUpload.setNum(sceneCode);
//        sceneUpload.setFilePath(ossPath);
//        sceneUpload.setBizType(bizType);
//        sceneUpload.setUploadUser(userId);
//        this.save(sceneUpload);
//    }
//
//    @Override
//    public String uploadContent(UploadContentParamVO param) throws Exception {
//
//        String ossPath = param.getOssPath();
//        String fileName = ossPath.substring(ossPath.lastIndexOf("/") + 1);
//        if(StrUtil.isEmpty(fileName)){
//            throw new BusinessException(ErrorCode.FAILURE_CODE_7012);
//        }
//        String suffix = fileName.substring(fileName.lastIndexOf("."));
//        if(StrUtil.isEmpty(suffix)){
//            throw new BusinessException(ErrorCode.FAILURE_CODE_7012);
//        }
//
//        File tempFile = File.createTempFile(UUID.randomUUID().toString(), suffix);
//        cn.hutool.core.io.FileUtil.writeString(param.getContent(), tempFile, StandardCharsets.UTF_8);
//        fYunFileService.uploadFile(param.getBucket(), tempFile.getPath(), param.getOssPath());
//        tempFile.deleteOnExit();
//
//        return this.ossUrlPrefix + param.getOssPath();
//    }
}