class Geocoder::Lookup::MaxmindGeoip2

def cache_key(query)
  query_url(query)
end

def configured_service!
  if s = configuration[:service] and services.include?(s) and configuration[:basic_auth][:user] and configuration[:basic_auth][:password]
    return s
  else
    raise(
      Geocoder::ConfigurationError, "When using MaxMind GeoIP2 you must specify a service and credentials: Geocoder.configure(maxmind_geoip2: {service: ..., basic_auth: {user: ..., password: ...}}), where service is one of: #{services.inspect}"
    )
  end
end

def data_contains_error?(doc)
  (["code", "error"] - doc.keys).empty?
end

def name
  "MaxMind GeoIP2"
end

def query_url(query)
  "#{protocol}://geoip.maxmind.com/geoip/v2.1/#{configured_service!}/#{query.sanitized_text.strip}"
end

def results(query)
  # don't look up a loopback or private address, just return the stored result
  return [] if query.internal_ip_address?
  doc = fetch_data(query)
  if doc
    if !data_contains_error?(doc)
      return [doc]
    else
      Geocoder.log(:warn, "MaxMind GeoIP2 Geocoding API error: #{doc['code']} (#{doc['error']}).")
    end
  end
  return []
end

def services
  [
    :country,
    :city,
    :insights,
  ]
end

def supported_protocols
  [:https]
end