module Geocoder::Lookup

def all_services
  street_services + ip_services
end

def all_services_except_test
  all_services - [:test]
end

def classify_name(filename)
  filename.to_s.split("_").map{ |i| i[0...1].upcase + i[1..-1] }.join
end

def get(name)
  @services = {} unless defined?(@services)
  @services[name] = spawn(name) unless @services.include?(name)
  @services[name]
end

def ip_services
  @ip_services ||= [
    :baidu_ip,
    :freegeoip,
    :geoip2,
    :maxmind,
    :maxmind_local,
    :telize,
    :pointpin,
    :maxmind_geoip2,
    :ipinfo_io,
    :ipregistry,
    :ipapi_com,
    :ipdata_co,
    :db_ip_com,
    :ipstack,
    :ip2location,
    :ipgeolocation
  ]
end

def spawn(name)
  if all_services.include?(name)
    name = name.to_s
    require "geocoder/lookups/#{name}"
    Geocoder::Lookup.const_get(classify_name(name)).new
  else
    valids = all_services.map(&:inspect).join(", ")
    raise ConfigurationError, "Please specify a valid lookup for Geocoder " +
      "(#{name.inspect} is not one of: #{valids})."
  end
end

def street_services
  @street_services ||= [
    :location_iq,
    :dstk,
    :esri,
    :google,
    :google_premier,
    :google_places_details,
    :google_places_search,
    :bing,
    :geocoder_ca,
    :yandex,
    :nationaal_georegister_nl,
    :nominatim,
    :mapbox,
    :mapquest,
    :uk_ordnance_survey_names,
    :opencagedata,
    :pelias,
    :pickpoint,
    :here,
    :baidu,
    :tencent,
    :geocodio,
    :smarty_streets,
    :postcode_anywhere_uk,
    :postcodes_io,
    :geoportail_lu,
    :ban_data_gouv_fr,
    :test,
    :latlon,
    :amap,
    :osmnames
  ]
end