package com.hb.proj.utils;

import java.io.File;
import java.io.IOException;

import org.apache.commons.io.FileUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.web.multipart.MultipartFile;

import com.hb.proj.model.UploadResult;
import com.hb.xframework.dao.util.UUIDHexGenerator;

import jakarta.servlet.http.HttpServletRequest;

public class UploadUtils {

	public static UploadResult saveFile(HttpServletRequest request,MultipartFile file,String subFolder,String accessPathPrefix) throws IllegalStateException, IOException {
		String OriginalFilename = file.getOriginalFilename();//获取原文件名
        String suffixName = OriginalFilename.substring(OriginalFilename.lastIndexOf("."));

		String[] subPaths=subFolder.split("\\.|/");
		String basePath=request.getSession().getServletContext().getRealPath("");
		String relPath="upload"+File.separator+StringUtils.join(subPaths,File.separator);
		basePath=basePath+File.separator+relPath;
		
		FileUtils.forceMkdir(new File(basePath));
		
		UUIDHexGenerator  uuid=UUIDHexGenerator.getInstance();
		String newFileName=uuid.generate()+suffixName;
		File localFile=new File(basePath+File.separator+newFileName);
		file.transferTo(localFile);
		
		String accessPath=accessPathPrefix+"/upload/"+StringUtils.join(subPaths,"/")+"/"+newFileName;
		
		return new UploadResult(newFileName,(relPath+File.separator+newFileName),accessPath);
		
	}
	
	public static void removeFile(HttpServletRequest request,String filePath){
		
		
			try {
				String basePath=request.getSession().getServletContext().getRealPath("");
				filePath=basePath+File.separator+filePath;
				File filedev=new File(filePath);
				if(filedev.exists()){
					FileUtils.forceDelete(filedev);
				}
				
			} catch (IOException e) {
				e.printStackTrace();
			}
		
	}
}