require 'geocoder/lookups/base'
require 'geocoder/results/db_ip_com'

module Geocoder::Lookup
  class DbIpCom < Base

    def name
      'DB-IP.com'
    end

    def supported_protocols
      [:https, :http]
    end

    def required_api_key_parts
      ['api_key']
    end

    def query_url(query)
      query_params = if query.options[:params]
        "?#{url_query_string(query)}"
      end

      "#{protocol}://api.db-ip.com/v2/#{configuration.api_key}/#{query.sanitized_text}#{query_params}"
    end

    private

    def results(query)
      return [] unless (doc = fetch_data(query))

      case doc['error']
      when 'maximum number of queries per day exceeded'
        raise_error Geocoder::OverQueryLimitError ||
                    Geocoder.log(:warn, 'DB-API query limit exceeded.')

      when 'invalid API key'
        raise_error Geocoder::InvalidApiKey ||
                    Geocoder.log(:warn, 'Invalid DB-IP API key.')
      when nil
        [doc]

      else
        raise_error Geocoder::Error ||
                    Geocoder.log(:warn, "Request failed: #{doc['error']}")
      end
    end
  end
end