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DB departures/arrivals: parse load factor

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See https://www.bahn.de/p/view/service/buchung/auslastungsinformation.shtml for reference.
This commit is contained in:
Christopher Zentgraf 2019-05-16 10:49:51 +02:00 • committed by Jannis Redmann
parent 4f8bc17015
commit f92e9336c0
2 changed files with 55 additions and 1 deletions
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4
index.js
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@ -89,6 +89,7 @@ const createClient = (profile, userAgent, request = _request) => {
.then((d) => {
if (!Array.isArray(d.jnyL)) return []
const parse = parser(profile, opt, {
raw: d,
locations: d.locations,
lines: d.lines,
hints: d.hints,
@ -218,6 +219,7 @@ const createClient = (profile, userAgent, request = _request) => {
if (!Array.isArray(d.outConL)) return []
const parse = profile.parseJourney(profile, opt, {
raw: d,
locations: d.locations,
lines: d.lines,
hints: d.hints,
@ -277,6 +279,7 @@ const createClient = (profile, userAgent, request = _request) => {
}
const parse = profile.parseJourney(profile, opt, {
raw: d,
locations: d.locations,
lines: d.lines,
hints: d.hints,
@ -406,6 +409,7 @@ const createClient = (profile, userAgent, request = _request) => {
})
.then((d) => {
const parse = profile.parseJourneyLeg(profile, opt, {
raw: d,
locations: d.locations,
lines: d.lines,
hints: d.hints,

52
p/db/index.js
View file

@ -2,7 +2,10 @@
const trim = require('lodash/trim')
const _createParseArrival = require('../../parse/arrival')
const _createParseDeparture = require('../../parse/departure')
const _createParseJourney = require('../../parse/journey')
const _createParseJourneyLeg = require('../../parse/journey-leg')
const _createParseLine = require('../../parse/line')
const _parseHint = require('../../parse/hint')
const _formatStation = require('../../format/station')
@ -13,13 +16,43 @@ const formatLoyaltyCard = require('./loyalty-cards').format
const transformReqBody = (body) => {
body.client = {id: 'DB', v: '16040000', type: 'IPH', name: 'DB Navigator'}
body.ext = 'DB.R18.06.a'
body.ext = 'DB.R19.04.a'
body.ver = '1.16'
body.auth = {type: 'AID', aid: 'n91dB8Z77MLdoR0K'}
return body
}
// https://www.bahn.de/p/view/service/buchung/auslastungsinformation.shtml
const loadFactors = []
loadFactors[1] = 'low-to-medium'
loadFactors[2] = 'high'
loadFactors[3] = 'very-high'
loadFactors[4] = 'exceptionally-high'
const parseLoadFactor = (opt, tcocL, tcocX) => {
const cls = opt.firstClass ? 'FIRST' : 'SECOND'
const load = tcocX.map(i => tcocL[i]).find(lf => lf.c === cls)
return load && loadFactors[load.r] || null
}
const createParseArrOrDep = (createParse) => (profile, opt, data) => {
const parse = createParse(profile, opt, data)
const parseWithLoadFactor = (d) => {
const result = parse(d)
if (d.stbStop.dTrnCmpSX && Array.isArray(d.stbStop.dTrnCmpSX.tcocX)) {
const {tcocL} = data.raw.common
const load = parseLoadFactor(opt, tcocL, d.stbStop.dTrnCmpSX.tcocX)
if (load) result.loadFactor = load
}
return result
}
return parseWithLoadFactor
}
const createParseArrival = createParseArrOrDep(_createParseArrival)
const createParseDeparture = createParseArrOrDep(_createParseDeparture)
const transformJourneysQuery = (query, opt) => {
const filters = query.jnyFltrL
if (opt.bike) filters.push(bike)
@ -96,6 +129,20 @@ const createParseJourney = (profile, opt, data) => {
return parseJourneyWithPrice
}
const createParseJourneyLeg = (profile, opt, data) => {
const parseJourneyLeg = _createParseJourneyLeg(profile, opt, data)
const parseJourneyLegWithLoadFactor = (j, pt, parseStopovers) => {
const result = parseJourneyLeg(j, pt, parseStopovers)
if (pt.jny && pt.jny.dTrnCmpSX && Array.isArray(pt.jny.dTrnCmpSX.tcocX)) {
const {tcocL} = data.raw.common
const load = parseLoadFactor(opt, tcocL, pt.jny.dTrnCmpSX.tcocX)
if (load) result.loadFactor = load
}
return result
}
return parseJourneyLegWithLoadFactor
}
const hintsByCode = Object.assign(Object.create(null), {
fb: {
type: 'hint',
@ -332,7 +379,10 @@ const dbProfile = {
// todo: parseLocation
parseJourney: createParseJourney,
parseJourneyLeg: createParseJourneyLeg,
parseLine: createParseLine,
parseArrival: createParseArrival,
parseDeparture: createParseDeparture,
parseHint,
formatStation,