package com.gkhy.assess.system.service.impl;

import com.gkhy.assess.common.exception.ApiException;
import com.gkhy.assess.system.domain.vo.UploadObjectVO;
import com.gkhy.assess.system.service.SysCommonService;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.UUID;

@Service
public class SysCommonServiceImpl implements SysCommonService {

    @Value("${image.upload_file}")
    private String uploadFilePath;

    @Value("${image.upload_image}")
    private String uploadImagePath;

    @Override
    public UploadObjectVO uploadFile(MultipartFile file) {
        UploadObjectVO uploadObjectVO=doUpload(file);
        return uploadObjectVO;
    }

    public UploadObjectVO doUpload(MultipartFile file){
        String filename=file.getOriginalFilename();
        String subfix=filename.substring(filename.lastIndexOf("."));
        filename= UUID.randomUUID().toString().replace("-","")+subfix;
        String systemDir=System.getProperty("user.dir");
        String filePath="";
        if(checkImageType(subfix)){
            filePath=uploadImagePath;
        }else{
            filePath=uploadFilePath;
        }
        File dirFile=new File(filePath);
        if(!dirFile.exists()){
            dirFile.mkdirs();
        }
        filePath=filePath+File.separator+filename;
        try {
            file.transferTo(new File(systemDir+File.separator+filePath));
        } catch (FileNotFoundException e) {
            throw new ApiException("找不到文件");
        } catch (IOException e) {
            throw new ApiException("发生错误,请联系管理员");
        }
        UploadObjectVO uploadObjectVO=new UploadObjectVO().setFilename(filename)
                .setPath(filePath);
        return uploadObjectVO;
    }


    public boolean checkImageType(String subfix){
        if(".jpg".equalsIgnoreCase(subfix)||
                ".jpeg".equalsIgnoreCase(subfix)||
                ".png".equalsIgnoreCase(subfix)||
                ".bmp".equalsIgnoreCase(subfix)||
                ".tif".equalsIgnoreCase(subfix)
        ){
            return true;
        }
        return false;
    }

}