Feature/filesharing is added

[KaustubhBankar]

//In public / frontend changes -> added button for attachment;

const handleFileChange = (event) => {
setFile(event.target.files[0]); // Save the selected file to state
};

// In backend ---->

const multer = require("multer");
const path = require("path"); // Add this line to import the path module
const fs = require("fs");

const uploadDir = path.join(__dirname, "uploads");

// Check if the uploads directory exists, if not, create it
if (!fs.existsSync(uploadDir)) {
fs.mkdirSync(uploadDir, { recursive: true });
console.log(Created uploads directory at ${uploadDir});
}

// Multer configuration
const storage = multer.diskStorage({
destination: (req, file, cb) => {
cb(null, "uploads/"); // Where files will be stored
},
filename: (req, file, cb) => {
const uniqueSuffix = Date.now() + '-' + Math.round(Math.random() * 1E9);
cb(null, file.fieldname + '-' + uniqueSuffix + path.extname(file.originalname)); // Rename the file with a unique suffix
}
});

const upload = multer({ storage: storage });

module.exports = upload;