import fs from "node:fs";
import path from "node:path";
import crypto from "node:crypto";
import multer from "multer";
import { config } from "../config.js";

fs.mkdirSync(config.uploadDirectory, { recursive: true });

const storage = multer.diskStorage({
  destination: config.uploadDirectory,
  filename: (request, file, callback) => {
    const extension = path.extname(file.originalname).slice(0, 20);
    callback(null, `${Date.now()}-${crypto.randomUUID()}${extension}`);
  },
});

export const uploadSingle = multer({
  storage,
  limits: { fileSize: config.MAX_UPLOAD_MB * 1024 * 1024, files: 1 },
}).single("file");