const express = require("express");
const router = express.Router();
const fs = require("fs");

const lastFilesDir = "./public/upload/converted/";

const renderPageName = "invoice_sign";

// load the page
router.get("/", function (req, res) {
  let lastFiles = [];
  if (!fs.existsSync(lastFilesDir)) {
    fs.mkdirSync(lastFilesDir);
  }
  const dir = fs.opendirSync(lastFilesDir);
  let entity;
  while ((entity = dir.readSync()) !== null) {
    if (entity.isFile()) {
      lastFiles.push({ type: "f", name: entity.name });
    } else if (entity.isDirectory()) {
      lastFiles.push({ type: "d", name: entity.name });
    }
  }
  res.render(renderPageName, { lastFiles });
});
//Post the upload file
// For handling the upload request
router.post("/", function (req, res) {
  // When a file has been uploaded
  if (req.files && Object.keys(req.files).length !== 0) {
    // Uploaded path
    const uploadedFile = req.files.uploadFile;

    // Logging uploading file
    console.log(uploadedFile);

    // Upload path
    const uploadPath = lastFilesDir;
    if (!fs.existsSync(uploadPath)) {
      fs.mkdirSync(uploadPath);
    }
    // To save the file using mv() function
    uploadedFile.mv(uploadPath + uploadedFile.name, function (err) {
      if (err) {
        console.log(err);
        res.send("Failed !!");
      } else res.send("Successfully Uploaded !!");
    });
  } else res.send("No file uploaded !!");
});

// To handle the download file request
router.get("/download", function (req, res) {
  // The res.download() talking file path to be downloaded
  // console.log(req);
  // res.download(__dirname + "/uploads/fax.odg", function (err) {
  //   if (err) {
  //     console.log(err);
  //   }
  // });
  const downloadFile = lastFilesDir + req.query.downloadFile;
  console.log(downloadFile);
  res.download(downloadFile, function (err) {});
});
module.exports = router;