module EnsnareBnb

# File lib/ensnare_bnb.rb, line 21
def find_airbnb_hosts(**opts)
  # city, state, country
  # New-York--NY--United-States
  city = opts.fetch(:city)
  state = opts.fetch(:state, nil)
  country = opts.fetch(:country, nil)

  city_query = [city, state, country].compact.map do |str|
    str.gsub('-', '~').gsub(' ', '-')
  end.join('--')

  search_params = opts.except(:city, :state, :country, :max_pages)
  query = city_query + "?" + search_params.to_query

  # build intelligent options hashes/params in URLparams

  base_url = "https://www.airbnb.com"
  search_url = "#{base_url}/s/#{query}"

  pages = opts.fetch(:max_pages, self.max_page_number(search_url))
  results = []

  pages.times do |pg|
    url = "#{search_url}?room_types%5B%5D=Entire+home%2Fapt&page=#{pg}"
    Nokogiri::HTML(open(url)).css(".target-details.block-link").each do |box|
      details_url = "#{base_url}#{box["href"]}"
      inner_pg_data = Nokogiri::HTML(open(details_url))
      name = inner_pg_data.css('#listing_name').text.strip
      price = inner_pg_data.css('#price_amount').text[/\d+/]
      beds = inner_pg_data.css('#summary > div > div > div.col-8 > div > div:nth-child(2) > div.col-9 > div > div:nth-child(4)').text[/\d+/]
      bedrooms = inner_pg_data.css('#summary > div > div > div.col-8 > div > div:nth-child(2) > div.col-9 > div > div:nth-child(3)').text[/\d+/]
      capacity = inner_pg_data.css('#summary > div > div > div.col-8 > div > div:nth-child(2) > div.col-9 > div > div:nth-child(2)').text[/\d+/]
      output = {
        city: city,
        name: name,
        price: price.to_i,
        bedrooms: bedrooms.to_i,
        beds: beds.to_i,
        capacity: capacity.to_i
      }.to_json

      results << output
    end
  end
  results
end

# File lib/ensnare_bnb.rb, line 12
def max_page_number(url)
  # pagination-buttons-container
  selector = "body > div.map-search > div.sidebar > " +
              "div.search-results.panel-body > div.results-footer > " +
              "div.pagination-buttons-container > div.pagination > ul > " +
              "li:nth-child(5)"
  Nokogiri::HTML(open(url)).css(selector).text.to_i
end