import getSelectionRange from './getSelectionRange.js';

const getSelectedBlockElement = (): Element | null => {
  const selectionRange = getSelectionRange();
  if (!selectionRange) return null;

  let node: Node | null = selectionRange.startContainer;

  do {
    if (node instanceof Element && node.getAttribute('data-block') === 'true')
      return node;
    node = node.parentNode;
  } while (node != null);
  return null;
};

export default getSelectedBlockElement;