lib/barometer/query/formats/icao.rb
module Barometer
module Query
module Format
#
# ICAO (International Civil Aviation Organization)
# eg. KLAX (Los Angeles Airport)
#
class Icao < Base
@@codes_file = File.expand_path(
File.join(File.dirname(__FILE__), 'translations', 'icao_country_codes.yml'))
@@codes = nil
# call any 3-4 letter query, :icao ... obviously this will have a lot
# of false positives. So far this isn't an issue as all weather services
# that take :icao (which is just one, :wunderground) also take what
# this would have been if it was not called :icao.
#
def self.regex; /^[A-Za-z]{3,4}$/; end
# in some cases the first letter can designate the country
#
def self.geo(query)
return unless query && query.is_a?(String)
$:.unshift(File.dirname(__FILE__))
@@codes ||= YAML.load_file(@@codes_file)
return unless @@codes && @@codes['one_letter'] && @@codes['two_letter']
country_code = @@codes['one_letter'][query[0..0].upcase.to_s] ||
@@codes['two_letter'][query[0..1].upcase.to_s] || nil
{country_code: country_code}
end
end
end
end
end
Barometer::Query::Format.register(:icao, Barometer::Query::Format::Icao)