import multer from 'multer';

const ALLOWED_TYPES = ['application/pdf', 'image/jpeg', 'image/png', 'image/webp'];

const fileFilter: multer.Options['fileFilter'] = (_req, file, cb) => {
  if (ALLOWED_TYPES.includes(file.mimetype)) {
    cb(null, true);
  } else {
    cb(new Error('Only .pdf, .jpg, .png and .webp files are allowed'));
  }
};

const uploadCertificate = multer({
  storage: multer.memoryStorage(),
  fileFilter,
  limits: { fileSize: 5 * 1024 * 1024 },
});

export default uploadCertificate;