nextbus-graphql/lib/schema/types/stop.js

A GraphQL interface to the NextBus XML Feed

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.get = exports.getAll = exports.type = undefined;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

let getAll = exports.getAll = (() => {
  var _ref = _asyncToGenerator(function* (agencyTag, routeTag, context) {
    return (yield context.nextbus.getRoute(agencyTag, routeTag)).stops.map(function (stop) {
      return (0, _withType2.default)(type.name, _extends({}, stop, {
        agencyTag,
        routeTag
      }));
    });
  });

  return function getAll(_x, _x2, _x3) {
    return _ref.apply(this, arguments);
  };
})();

let get = exports.get = (() => {
  var _ref2 = _asyncToGenerator(function* (agencyTag, routeTag, stopTag, context) {
    const stop = (yield getAll(agencyTag, routeTag, context)).find(function (s) {
      return s.tag === stopTag;
    });
    if (stop) {
      return stop;
    }
    throw new Error(`No stop for agency tag "${ agencyTag }", route tag "${ routeTag }", stop tag "${ stopTag }"`);
  });

  return function get(_x4, _x5, _x6, _x7) {
    return _ref2.apply(this, arguments);
  };
})();

exports.getNode = getNode;

var _graphql = require('graphql');

var graphql = _interopRequireWildcard(_graphql);

var _graphqlRelay = require('graphql-relay');

var relay = _interopRequireWildcard(_graphqlRelay);

var _relayNode = require('../relayNode');

var _withType = require('../withType');

var _withType2 = _interopRequireDefault(_withType);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }

const encodeID = ([agencyTag, routeTag, stopTag]) => `${ agencyTag }:${ routeTag }:${ stopTag }`;
const decodeID = id => id.split(':');

const type = exports.type = new graphql.GraphQLObjectType({
  name: 'Stop',
  description: 'A stop along a route',
  fields: () => ({
    id: relay.globalIdField('Stop', stop => encodeID([stop.agencyTag, stop.routeTag, stop.tag])),
    agencyTag: {
      type: new graphql.GraphQLNonNull(graphql.GraphQLString),
      description: 'The tag of the agency to which this stop belongs'
    },
    lat: {
      type: new graphql.GraphQLNonNull(graphql.GraphQLString),
      resolve(stop, args, context) {
        return _asyncToGenerator(function* () {
          return stop.lat || (yield get(stop.agencyTag, stop.routeTag, stop.tag, context)).lat;
        })();
      }
    },
    lon: {
      type: new graphql.GraphQLNonNull(graphql.GraphQLString)
    },
    routeTag: {
      type: new graphql.GraphQLNonNull(graphql.GraphQLString),
      description: 'The tag of the route to which this stop belongs'
    },
    shortTitle: {
      type: graphql.GraphQLString
    },
    stopId: {
      type: graphql.GraphQLString
    },
    tag: {
      type: new graphql.GraphQLNonNull(graphql.GraphQLString)
    },
    title: {
      type: new graphql.GraphQLNonNull(graphql.GraphQLString)
    }
  }),
  interfaces: () => [_relayNode.nodeInterface]
});

function getNode(id, context, info) {
  const [agencyTag, routeTag, stopTag] = decodeID(id);
  return get(agencyTag, routeTag, stopTag, context, info);
}