/**
 * Convert byts to diffirents sizes types.
 * @param {number} bytes
 */
function bytesToSize(bytes) {
  const sizes = ["Bytes", "KB", "MB", "GB", "TB"];
  if (bytes === 0) return "n/a";
  ///@ts-ignore
  const i = parseInt( Math.floor( Math.log(bytes) / Math.log(1024) ) , 10 );
  if (i === 0) return `${bytes} ${sizes[i]})`;
  return `${(bytes / 1024 ** i).toFixed(1)} ${sizes[i]}`;
}

/**
 * Get extension file.
 * @param {file} file.
 */
function getFileExtension(file) {
  const filenameParts = file.name.split(".");
  return filenameParts[filenameParts.length - 1].toLowerCase();
}

/**
 * Validate by types.
 * @param {file} file .file object.
 * @param {array} allowedFileTypes list allowed types file.
 */
export function types(file, allowedFileTypes) {
  if (!allowedFileTypes.includes(getFileExtension(file))) {
    return false;
  }
  return true;
}

/**
 * Validate by size.
 * @param {file} file .file object.
 * @param {number} maxFileSize max size file.
 */
export function maxsize(file, maxFileSize) {
  const maxSize = parseFloat(maxFileSize) * 1024 * 1024;

  if (file.size > maxSize) {
    return false;
  }
  return true;
}