81 lines
2.3 KiB
JavaScript
81 lines
2.3 KiB
JavaScript
const createClient = require('hafas-client')
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const insaProfile = require('hafas-client/p/insa')
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var express = require("express");
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var app = express();
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const port = 3000
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const client = createClient(insaProfile, 'my-awesome-program')
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function printResult(departures,respdata) {
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let outstr = ""
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departures.forEach(element => {
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let delay = ""
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if (element['delay'] != 0) {
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delay = element['delay'] / 60
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}
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outstr += (cutPadString(element['line']['id'], 4).toUpperCase() + " " + cutPadString(element['direction'], 20) + " " + cutPadString(getTime(element['when']), 6) + delay + "\n")
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respdata['departures'].push({
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"line": element['line']['id'],
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"direction": element['direction'],
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"time": getTime(element['when']),
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"delay": delay
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})
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});
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return respdata;
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}
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async function getNearestStationDepartures(lat, lon) {
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var queryPromise = client.nearby({
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type: 'location',
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latitude: lat,
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longitude: lon
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}, {
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distance: 400
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})
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var result = await queryPromise
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var respdata = { "name" : result[0]['name'],
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"departures" : [] }
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var queryPromise2 = client.departures(result[0]['id'])
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var departures = await queryPromise2
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return printResult(departures,respdata)
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}
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function getTime(stringTime) {
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let d = new Date(stringTime)
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return String(d.getHours()).padStart(2, "0") + ":" + String(d.getMinutes()).padStart(2, "0")
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}
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function cutPadString(string, length) {
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let outstring = ""
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if (string.length > length) {
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outstring = string.substring(0, length - 3) + "..."
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} else {
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if (string.length < length) {
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outstring = string.padEnd(length)
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} else {
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outstring = string
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}
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}
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return outstring
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}
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app.get('/', (req, res) => res.send('Hello World!'))
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// Parse JSON bodies (as sent by API clients)
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app.use(express.json());
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// Access the parse results as request.body
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app.post('/', function (request, response) {
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console.log(request.body.lat);
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console.log(request.body.lon);
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getNearestStationDepartures(request.body.lat, request.body.lon)
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.then((result) => {
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response.send(result)
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})
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.catch(console.log("Error."))
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});
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app.listen(port, () => console.log(`Example app listening on port ${port}!`)) |