obscura.rb

require 'rubygems'
require 'gpx'
require 'httparty'
require 'pstore'

class Api
  include HTTParty
  base_uri 'https://atlas-obscura-api.herokuapp.com'

  CACHE = PStore.new("cache.pstore")

  def all_destinations(offset = 0)
    url = "/api/atlas/attractions/United-States?offset=#{offset}"
    cached = CACHE.transaction { CACHE[url] }
    return cached if cached
    response = self.class.get(url)
    CACHE.transaction { CACHE[url] = response }
    response
  end
end

# ele magvar geoidheight name cmt desc src link sym type fix sat hdop vdop pdop ageofdgpsdata dgpsid extensions

class Obscura
  def self.go
    api = Api.new
    gpx = GPX::GPXFile.new

    offset = 0
    dest = api.all_destinations(offset)

    until dest['Attractions'].empty?
      puts "found #{dest.size} at offset #{offset}"
      dest['Attractions'].each do |stop|
        gpx.waypoints << GPX::Waypoint.new({
          name: stop["name"],
          desc: stop["description"],
          lat: stop["coordinates"][0],
          lon: stop["coordinates"][1],
          link: "https://atlasobscura.com#{stop['path']}"
        })
      end
      offset += dest.size
      dest = api.all_destinations(offset)
    end

    File.open("atlasobscura.gpx", "w") do |f|
      f << gpx.to_s
    end
  end
end

puts Obscura.go