HOW_MANY_PAGES = 10
URL_PATTERN = 'https://rostov.hh.ru/search/vacancy?L_is_autosearch=false&area=113&clusters=true&enable_snippets=true&order_by=publication_time&schedule=remote&page=%d'

def scrape
  (1..HOW_MANY_PAGES).flat_map do |i|
    url = URL_PATTERN % i

    puts "Parsing page #{i}: #{url}"
    page = Nokogiri::HTML(URI.open(url, &:read))

    page.css('div.vacancy-serp-item').map do |element|
      {
        position: element.css('span.g-user-content').text,
        salary: element.css('div.vacancy-serp-item__sidebar').text,
        company: element.css('div.vacancy-serp-item__meta-info').text,
        work_desc: element.css('div.g-user-content').text,
        link: element.at_css('a')['href']
      }
    end
  end
end