triplet-client-ruter/src/parsers.js

Ruter client for Triplet travel planner

var Station = require('triplet-core/trip-models/station')
var GeoPoint = require('triplet-core/trip-models/geopoint')
var Trip = require('triplet-core/trip-models/trip')
var Leg = require('triplet-core/trip-models/leg')
var LegStop = require('triplet-core/trip-models/leg-stop')
var Carrier = require('triplet-core/trip-models/carrier')
var Line = require('triplet-core/trip-models/line')
var Location = require('triplet-core/trip-models/location')
var Utils = require('triplet-core/util/client-util.js')
var UtmUtil = require('triplet-core/util/utm-util.js')
var forceArray = Utils.forceArray
var parseDate = Utils.parseLocalDate

exports.stationsError = function (json) {
  return (!json || json.constructor !== Array)
    ? 'roerrorinternal'
    : undefined
}

exports.stations = function (json) {
  return forceArray(json)
    .map(station)
    .filter(function (s) { return s.id !== undefined })
}

exports.nearbyStationsError = exports.stationsError

exports.nearbyStations = function (json) {
  return forceArray(json).map(station)
}

exports.tripsError = function (json) {
  return json.ReisError ? json.ReisError.Description : null
}

exports.trips = function (json) {
  var data = json.TravelProposals
  return (!data) ? [] : forceArray(data).map(trip)
}

function station (json) {
  var location

  if (json.X && json.Y) {
    var utmCoord = {x: json.X, y: json.Y}
    location = UtmUtil.toWGS84(utmCoord, 32)
  } else {
    location = new Location()
  }

  if (json.PlaceType === 'Stop' || json.PlaceType === 'Area') {
    return new Station({
      id: json.ID,
      name: json.Name,
      area: json.District,
      location: location,
      clientId: 'rut'
    })
  }

  return new GeoPoint({
    name: json.Name,
    area: json.District,
    location: location,
    clientId: 'rut'
  })
}

function trip (json) {
  return new Trip({
    legs: forceArray(json.Stages).map(leg).filter(function (l) { return l }),
    messages: messages(json)
  })
}

function leg (json) {
  return (!json.DepartureStop || !json.ArrivalStop)
    ? null
    : new Leg({
      from: legStop(json.DepartureStop, json.DepartureTime),
      to: legStop(json.ArrivalStop, json.ArrivalTime),
      carrier: carrier(json),
      messages: messages(json)
    })
}

function legStop (json, time) {
  return new LegStop({
    point: station(json),
    track: '',
    plannedDate: date(time),
    realTimeDate: undefined,
    messages: messages(json)
  })
}

function carrier (json) {
  return new Carrier({
    name: json.LineName,
    heading: json.Destination,
    type: carrierType(json.Transportation),
    line: line(json),
    cancelled: (json.cancelled === true),
    flags: {
      details: json.JourneyDetailRef,
      accessibility: (json.accessibility === 'wheelChair')
    }
  })
}

function carrierType (type) {
  switch (type) {
    case 0:
      return Carrier.Types.walk
    case 1:
    case 2:
      return Carrier.Types.bus
    case 4:
    case 6:
      return Carrier.Types.train
    case 5:
      return Carrier.Types.boat
    case 7:
      return Carrier.Types.tram
    case 8:
      return Carrier.Types.metro
  }
  return Carrier.Types.unknown
}

function date (timeString) {
  var components = timeString.split('T')
  return parseDate(components[0], components[1])
}

function line (json) {
  return new Line({
    name: json.LineName,
    colorFg: '#ffffff',
    colorBg: '#' + json.LineColour
  })
}

function messages (json) {
  var msgs = []
  if (json.Remarks) {
    msgs = msgs.concat(forceArray(json.Remarks).map(message))
  }
  if (json.Deviations) {
    msgs = msgs.concat(forceArray(json.Deviations).map(message))
  }
  return msgs
}

function message (json) {
  return json.Header
}