Monitor free dates at Standesamt Leipzig - freie Termine bei Standesamt Leipzig überwachen

index.js

const { execFileSync } = require('child_process')
const notifier = require('node-notifier');
const logFile = require('path').resolve(require('os').homedir(), '.standesamt-log')
const fs = require('fs')

const path = require('path')
const casper = path.resolve(__dirname, 'node_modules/casperjs/bin/casperjs')
const scraper = path.resolve(__dirname, 'scraper.js')

let isRunning = false
let lastRes
let lastFree
module.exports = function run () {
  if (isRunning) {
    return
  }
  isRunning = true
  try {
    const res = execFileSync(casper, ['--verbose', scraper]).toString()
    const parsedRes = JSON.parse(res)
    if (!lastRes || res !== lastRes) {
      const free = parsedRes.reduce((sum, e) => sum + e.free, 0)
      const notification = {
        title: (lastRes ? 'Aktualisierte' : 'Aktuelle') + ' Standesamttermine',
        message: free
          ? parsedRes.filter(e => e.free).map(e => `\n${e.day}.${e.month}.${e.year}: ${e.free}`).join(',')
          : `Keine freien Termine${lastRes && lastFree ? ' mehr' : ''}`,
        wait: true,
        sound: true
      }
      notifier.notify(notification)
      fs.writeFileSync(logFile, new Date() + ':' + notification.message.replace(/\n/g, '\n  ') + '\n\n', {flag: 'a'})
      lastFree = free
      lastRes = res
    }
  } catch (e) {
    console.error(e)

  }
  isRunning = false
}

package.json

{
  "name": "standesamt-scraper",
  "version": "1.0.0",
  "description": "Scrape free dates for Standesamt Leipzig",
  "main": "index.js",
  "bin": "./standesamt-scraper",
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "casperjs": "^1.1.4",
    "node-notifier": "^5.4.0"
  }
}

scraper.js

const casper = require('casper').create()

casper
  .start('https://tnv.leipzig.de/tnv/')
  // Splash
  .thenClick('#agreement_accept')
  .thenClick('#action_infopage_next')
  // Ämterauswahl
  .waitForText('Standesamt')
  .then(function () {
    this.clickLabel(' Standesamt', 'button')
  })
  .waitForText('Termin vereinbaren')
  .then(function () {
    this.clickLabel('Termin vereinbaren', 'button')
  })
  // Auswahl des Anliegens
  .waitForText('in Leipzig geboren', function () {
    this.fillLabels('form', {
      'Beurkundung von 2019 in Leipzig geborenen Kindern': '1'
    })
    this.click('#action_concernselect_next')
  })
  .waitForText('Zusatzinformationen zu den Anliegen', function () {
    this.fillSelectors('form', {textarea: 'Foo'})
  })
  .thenClick('#action_concerncomments_next')
  .waitForText('Auswahl des Termins', function () {
    const dates = this.evaluate(function () {
      const dates = []
      const months = ['Jan', 'Feb', 'Mär', 'Apr', 'Mai', 'Jun', 'Jul', 'Aug', 'Sep', 'Okt', 'Nov', 'Dez']
      try {
        const tables = document.querySelectorAll('.ekolCalendarMonthTable')
        Array.prototype.forEach.call(tables, function (table) {
          const monthAndYear = table.querySelector('caption').innerText
          const month = months.indexOf(monthAndYear.substr(0, 3)) + 1
          const year = parseInt(monthAndYear.replace(/.+\s(20[0-9]{2,2})/, '$1'))

          const buttons = table.querySelectorAll('.eKOLCalendarButtonDay')
          Array.prototype.forEach.call(buttons, function (button) {
            dates.push({
              day: parseInt(button.querySelector('.ekolCalendarDayNumberInRange').innerText),
              month: month,
              year: year,
              free: parseInt(button.querySelector('.ekolCalendarFreeTimeContainer').innerText.replace(' frei'))
            })
          })
        })
      } catch (e) {
        __utils__.echo(e)
        return null
      }
      return dates
    })
    if (dates) {
      console.log(JSON.stringify(dates))
    }
  })
  .run()

standesamt-scraper

#!/usr/bin/env node

const scrape = require('../index')

scrape()
setInterval(scrape, 5 * 60 * 1000)