levenshtein

controller

  def check
    result = CheckCardAndUpdate.call(
        custom_original_text: params[:original_text],
        card_id: params[:id]
      )

    @misspelling = DamerauLevenshtein.distance(params[:original_text], Card.find(params[:id]).original_text)
    flash[:notice] = result.message
    redirect_to action: :index
  end

interactor

  private def coincides?(card_original_text, custom_original_text)
    DamerauLevenshtein.distance(card_original_text.to_s.downcase.intern, custom_original_text.to_s.downcase.intern) == 0
  end