/**
 * Util function that checks if the given selection is an exact overlap to any
 * existing annotations, and returns them, if so
 */
export const getExactOverlaps = (newAnnotation, selectedSpans) => {
  // All existing annotations at this point
  const existingAnnotations = [];

  selectedSpans.forEach(span => {
    const enclosingAnnotationSpan = span.closest('.r6o-annotation');
    const enclosingAnnotation = enclosingAnnotationSpan?.annotation;

    if (enclosingAnnotation && !existingAnnotations.includes(enclosingAnnotation))
      existingAnnotations.push(enclosingAnnotation);
  });

  if (existingAnnotations.length > 0)
    return existingAnnotations.filter(anno => {
      const isSameAnchor = anno.anchor == newAnnotation.anchor;
      const isSameQuote = anno.quote == newAnnotation.quote; // <<<< HERE
      return isSameAnchor && isSameQuote;
    });
  else
    return [];
};