dataservices-api/server/extension/sql/200_quotas.sql

DO $$
BEGIN
  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'service_type') THEN
    CREATE TYPE cdb_dataservices_server.service_type AS ENUM (
      'isolines',
      'hires_geocoder',
      'routing',
      'observatory',
      'internal_geocoder'
    );
  END IF;
END $$;

DO $$
BEGIN
  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'service_params') THEN
    CREATE TYPE cdb_dataservices_server.service_params AS (
      service cdb_dataservices_server.service_type,
      monthly_quota NUMERIC,
      used_quota NUMERIC,
      soft_limit BOOLEAN,
      provider TEXT
    );
  END IF;
END $$;

CREATE OR REPLACE FUNCTION cdb_dataservices_server.cdb_service_params(
  username TEXT,
  orgname TEXT)
RETURNS SETOF cdb_dataservices_server.service_params AS $$
  from cartodb_services.metrics.user import UserMetricsService
  from datetime import date

  plpy.execute("SELECT cdb_dataservices_server._connect_to_redis('{0}')".format(username))
  redis_conn = GD["redis_connection_{0}".format(username)]['redis_metrics_connection']

  today = date.today()
  ret = []

  #-- Isolines
  service = 'isolines'
  plpy.execute("SELECT cdb_dataservices_server._get_isolines_routing_config({0}, {1})".format(plpy.quote_nullable(username), plpy.quote_nullable(orgname)))
  user_isolines_config = GD["user_isolines_routing_config_{0}".format(username)]
  user_service = UserMetricsService(user_isolines_config, redis_conn)

  monthly_quota = user_isolines_config.isolines_quota
  used_quota = user_service.used_quota(user_isolines_config.service_type, today)
  soft_limit = user_isolines_config.soft_isolines_limit
  provider = user_isolines_config.provider
  ret += [[service, monthly_quota, used_quota, soft_limit, provider]]

  #-- Hires Geocoder
  service = 'hires_geocoder'
  plpy.execute("SELECT cdb_dataservices_server._get_geocoder_config({0}, {1})".format(plpy.quote_nullable(username), plpy.quote_nullable(orgname)))
  user_geocoder_config = GD["user_geocoder_config_{0}".format(username)]
  user_service = UserMetricsService(user_geocoder_config, redis_conn)

  monthly_quota = user_geocoder_config.geocoding_quota
  used_quota = user_service.used_quota(user_geocoder_config.service_type, today)
  soft_limit = user_geocoder_config.soft_geocoding_limit
  provider = user_geocoder_config.provider
  ret += [[service, monthly_quota, used_quota, soft_limit, provider]]

  #-- Routing
  service = 'routing'
  plpy.execute("SELECT cdb_dataservices_server._get_routing_config({0}, {1})".format(plpy.quote_nullable(username), plpy.quote_nullable(orgname)))
  user_routing_config = GD["user_routing_config_{0}".format(username)]
  user_service = UserMetricsService(user_routing_config, redis_conn)

  monthly_quota = user_routing_config.monthly_quota
  used_quota = user_service.used_quota(user_routing_config.service_type, today)
  soft_limit = user_routing_config.soft_limit
  provider = user_routing_config.provider
  ret += [[service, monthly_quota, used_quota, soft_limit, provider]]

  #-- Observatory
  service = 'observatory'
  plpy.execute("SELECT cdb_dataservices_server._get_obs_config({0}, {1})".format(plpy.quote_nullable(username), plpy.quote_nullable(orgname)))
  user_obs_config = GD["user_obs_config_{0}".format(username)]
  user_service = UserMetricsService(user_obs_config, redis_conn)

  monthly_quota = user_obs_config.monthly_quota
  used_quota = user_service.used_quota(user_obs_config.service_type, today)
  soft_limit = user_obs_config.soft_limit
  provider = user_obs_config.provider
  ret += [[service, monthly_quota, used_quota, soft_limit, provider]]

  #-- Internal geocoder
  service = 'internal_geocoder'
  plpy.execute("SELECT cdb_dataservices_server._get_internal_geocoder_config({0}, {1})".format(plpy.quote_nullable(username), plpy.quote_nullable(orgname)))
  user_geocoder_config = GD["user_internal_geocoder_config_{0}".format(username)]
  user_service = UserMetricsService(user_geocoder_config, redis_conn)

  monthly_quota = user_geocoder_config.monthly_quota
  used_quota = user_service.used_quota(user_geocoder_config.service_type, today)
  soft_limit = user_geocoder_config.soft_limit
  provider = user_geocoder_config.provider
  ret += [[service, monthly_quota, used_quota, soft_limit, provider]]

  return ret
$$ LANGUAGE plpythonu;


CREATE OR REPLACE FUNCTION cdb_dataservices_server.cdb_enough_quota(
  username TEXT,
  orgname TEXT,
  service_ cdb_dataservices_server.service_type,
  input_size NUMERIC)
returns BOOLEAN AS $$
  DECLARE
    params cdb_dataservices_server.service_params;
  BEGIN
    SELECT * INTO params
      FROM cdb_dataservices_server.cdb_service_params(username, orgname) AS p
      WHERE p.service = service_;
    RETURN params.soft_limit
           OR params.monthly_quota IS NULL -- account for the internal_geocoder
           OR ((params.used_quota + input_size) <= params.monthly_quota);
  END
$$ LANGUAGE plpgsql;