class Geocoder::Lookup::AmazonLocationService

def client
  return @client if @client
  require_sdk
  keys = configuration.api_key
  if keys
    @client = Aws::LocationService::Client.new(
      access_key_id: keys[:access_key_id],
      secret_access_key: keys[:secret_access_key],
    )
  else
    @client = Aws::LocationService::Client.new
  end
end

def global_index_name
  if configuration[:index_name]
    { index_name: configuration[:index_name] }
  else
    {}
  end
end

def require_sdk
  begin
    require 'aws-sdk-locationservice'
  rescue LoadError
    raise_error(Geocoder::ConfigurationError) ||
      Geocoder.log(
        :error,
        "Couldn't load the Amazon Location Service SDK. " +
        "Install it with: gem install aws-sdk-locationservice -v '~> 1.4'"
      )
  end
end

def results(query)
  params = { **global_index_name, **query.options }
  if query.reverse_geocode?
    resp = client.search_place_index_for_position(**{ **params, position: query.coordinates.reverse })
  else
    resp = client.search_place_index_for_text(**{ **params, text: query.text })
  end
  resp.results.map(&:place)
end