package com.iflytop.nuclear.controller;

import com.alibaba.fastjson2.JSONObject;
import com.iflytop.nuclear.service.UploadService;
import com.iflytop.nuclear.utils.ResponseData;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;

/**
 * @author cool
 * @date 2023/6/27 09:53
 * @desc 上传接口
 */
@Slf4j
@RestController
@CrossOrigin
@PreAuthorize("hasRole('ADMIN')")
public class UploadController {

    @Autowired
    UploadService uploadService;

    @PostMapping("/upload/{id}")
    public ResponseData uploadToLocal(MultipartFile file, @PathVariable(name = "id") int taskId) throws IOException {
        // 对当前文件中内容格式进行校验
        boolean isValid = uploadService.verifyFileFormat(file);
        if (!isValid) {
            return ResponseData.fail("上传文件内容未按照标准版式排版");
        }
        boolean isSuccess = uploadService.saveFileContentToDB(file, taskId);
        // 获取文件原本的名字
        String originName = file.getOriginalFilename();
        // 判断文件是否是pdf文件
        Set<String> set = new HashSet<>();
        set.add(".xlsx");
        // 取出文件的后缀
        int count = 0;
        for(int i = 0; i < originName.length(); i++){
            if(originName.charAt(i) == '.'){
                count = i;
                break;
            }
        }
        String endName = originName.substring(count); //取出文件类型
        String fileType = originName.substring(count + 1); //文件类型
        if(!set.contains(endName)){
            return ResponseData.fail("上传的文件类型错误,只能上传xlsx类型的文件");
        }
        // 创建保存路径 后期使用保存在数据库中的id进行取名
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
        String format = sdf.format(new Date());
        String savePath = System.getProperty("user.dir") + "/" + "uploadfiles" + "/" + fileType + "/" + format;
        // String savePath = "/home/zwsd/" + "uploadfiles" + "/" + fileType + "/" + format;
        // 保存文件的文件夹
        File folder = new File(savePath);
        // 判断路径是否存在,不存在则自动创建
        if(!folder.exists()){
            folder.mkdirs();
        }
        String saveName = originName.substring(0, count) + "-" + taskId + ".xlsx";
        try {
            file.transferTo(new File(folder,saveName));
            String filePath = savePath + "\\" + saveName;
            JSONObject res = new JSONObject();
            res.put("path", filePath);
            return ResponseData.success(res);
        } catch (IOException e){
            return ResponseData.fail(e.getMessage());
        }
    }
}