/**
 * Highlights matching text in a string by wrapping matches with a marker
 * @param text - The text to search in
 * @param query - The search query to highlight
 * @returns The text with highlighted matches wrapped in <mark> tags
 */
export function highlightText(text: string, query: string): string {
  if (!query.trim() || !text) {
    return text
  }

  const regex = new RegExp(`(${escapeRegExp(query)})`, 'gi')
  return text.replace(regex, '<mark>$1</mark>')
}

/**
 * Escapes special regex characters in a string
 * @param string - The string to escape
 * @returns The escaped string safe for use in RegExp
 */
function escapeRegExp(string: string): string {
  return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
}