const express = require('express');
const aws = require('aws-sdk');
const multer = require('multer');
const multerS3 = require('multer-s3');
const path = require("path");

const app = express();

// 配置 AWS SDK
const s3 = new aws.S3({
  accessKeyId: 'AKIATLPEDU37QV5CHLMH',
  secretAccessKey: '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',
  region:'cn-northwest-1'
});

// 配置 Multer 以处理文件上传
const upload = multer({
  storage: multerS3({
    s3: s3,
    bucket: 'ccrb',
    acl: 'public-read', // 设置文件权限为公共读取
    key: function (req, file, cb) {
      cb(null,  file.fieldname + "-" + Date.now() + path.extname(file.originalname)); // 保存到S3时的文件名
    }
  })
});

// 接收文件上传的 POST 请求 
app.post('/img', upload.single('file'), (req, res) => {
  // console.log(req.file.location);
  res.json({ fileUrl: req.file.location }); // 返回上传后文件在S3中的URL
});

//app.use(router.routes()).use(router.allowedMethods());

// 启动服务器
const port = 7334;
app.listen(port, () => {
  console.log(`Server is running on http://localhost:${port}`);
});