module Pagy::Frontend

def pagy_semantic_responsive_nav(pagy, id=pagy_id)
  tags, link, p_prev, p_next, responsive = {}, pagy_link_proc(pagy, 'class="item"'), pagy.prev, pagy.next, pagy.responsive
  tags['before'] = (p_prev ? %(#{link.call p_prev, '<i class="left small chevron icon"></i>', 'aria-label="previous"'})
                           : %(<div class="item disabled"><i class="left small chevron icon"></i></div>))
  responsive[:items].each do |item|  # series example: [1, :gap, 7, 8, "9", 10, 11, :gap, 36]
    tags[item.to_s] = if    item.is_a?(Integer); %(#{link.call item})                      # page link
                      elsif item.is_a?(String) ; %(<a class="item active">#{item}</a>)     # current page
                      elsif item == :gap       ; %(<div class="disabled item">...</div>)   # page gap
                      end
  end
  tags['after'] = (p_next ? %(#{link.call p_next, '<i class="right small chevron icon"></i>', 'aria-label="next"'})
                          : %(<div class="item disabled"><i class="right small chevron icon"></i></div>))
  script = pagy_json_tag(:responsive, id, tags,  responsive[:widths], responsive[:series])
  %(<div id="#{id}" class="pagy-nav-responsive-semantic pagy-semantic-responsive-nav ui pagination menu" role="navigation" aria-label="pager"></div>#{script})
end