class Geocoder::Lookup::Geoip2

def initialize
  unless configuration[:file].nil?
    begin
      @gem_name = configuration[:lib] || 'maxminddb'
      require @gem_name
    rescue LoadError
      raise "Could not load Maxmind DB dependency. To use the GeoIP2 lookup you must add the #{@gem_name} gem to your Gemfile or have it installed in your system."
    end
  end
  super
end

def name
  'GeoIP2'
end

def required_api_key_parts
  []
end

def results(query)
  return [] unless configuration[:file]
  if @gem_name == 'hive_geoip2'
    result = Hive::GeoIP2.lookup(query.to_s, configuration[:file].to_s)
  else
    result = MaxMindDB.new(configuration[:file].to_s).lookup(query.to_s)
  end
  result.nil? ? [] : [result]
end